[Botany • 2024] Impatiens neo-uncinata (Balsaminaceae) • A New Species from southern Western Ghats of Kerala, India

April 16, 2024, 5:31 am

≫ Next: [Botany • 2024] Thaigardenia (Rubiaceae: Gardenieae) • A New Genus distributed from Thailand to South China

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Impatiens neo-uncinata V.S.A.Kumar & Sindhu Arya,  in Sindhu et Kumar, 2024.  DOI: 10.11646/phytotaxa.644.1.1   facebook.com: Arya Rajasekhar S

 Abstract

A new species, Impatiens neo-uncinata, belonging to section Scorpioidae is described and illustrated from Thiruvananthapuram district of Kerala in the southern Western Ghats. It is morphologically similar to Impatiens unicinata, but can easily be distinguished in having milky white distal lobe of keel petal, deltoid shape of standard petals and 1–2 seeded capsules. Furthermore, the SEM analysis of pollen and seed also delineate the taxa. Impatiens neo-uncinatais assessed here as Endangered based on the categories and criteria of the IUCN Red List.

Eudicots, Agasthyamala biosphere reserve, Impatiens, Scorpioidae, taxonomy

   

Impatiens neo-uncinata V.S.A.Kumar & Sindhu Arya

Arya Sindhu and Venugopalan Nair Saradhamma Anil Kumar. 2024. Impatiens neo-uncinata (Balsaminaceae), A New Species from southern Western Ghats of Kerala, India.  Phytotaxa. 644(1); 1-9. DOI: 10.11646/phytotaxa.644.1.1

  facebook.com/AryaSindu33/posts/7271537509632189

   

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[Botany • 2024] Thaigardenia (Rubiaceae: Gardenieae) • A New Genus distributed from Thailand to South China

April 17, 2024, 9:05 pm

≫ Next: [Crustacea • 2024] The “Mr. and Mrs. Ghat crab”, Ghatiana dvirupa sp. nov. (Decapoda: Brachyura: Gecarcinucidae) from the Central Western Ghats of India

≪ Previous: [Botany • 2024] Impatiens neo-uncinata (Balsaminaceae) • A New Species from southern Western Ghats of Kerala, India

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T. similis (Craib) K.M.Wong & L.Neo comb. nov.,  T. collinsiae (Craib) K.M.Wong, Teerawat. & Sungkaew comb. nov., Thaigardenia Sungkaew, Teerawat., Chamch. & K.M.Wong, gen. nov.   in Sungkaew, Arthan, Teerawatananon, Chamchumroon, Neo et Wong, 2024.  DOI:10.20531/tfb.2024.52.1.04 Photos: D. Prathumthong, A. Teerawatananon and K.M. Wong.

Abstract

Identified as Gardenia over a century ago, three known species from Thailand to south China differ considerably from typical members of that genus, from which growth habits, aspects of branch architecture and corolla shape set them apart. They form a new genus, here named Thaigardenia, the species of which are scrambling to thicket-forming shrubs to sometimes treelets or small trees. They have typically unequal (asymmetric) development of each internode that offsets what began as opposite pairs of axillary buds (and potential axillary branches) from subtending leaf axils at the same level, and small infundibular corollas with insignificant tubular bases. In contrast, typical Gardenia are non-scrambling shrubs or trees, often have extra-axillary buds or branches that consistently continue to develop at the same level (i.e., remaining opposite); and showy hypocrateriform (salverform) corollas with elongate tubular bases. The unequal development of different sides of an internode that brings an initially opposite pair of axillary buds (branches) to different levels, so that they do not appear paired subsequently, is, as far as is known, unique and unknown in other Rubiaceae or opposite-leaved plants; this shared feature is a key synapomorphic character for species of the newly recognised genus.

Keywords: Branch architecture, Gardenia, hypocrateriform, infundibular

Open flower (inset) and fruiting twig of Thaigardenia similis (Craib) K.M.Wong & L.Neo, showing narrowly triangular lobes on a short calyx tube. Photos: D. Prathumthong (flower) and A. Teerawatananon.

Thaigardenia Sungkaew, Teerawat., Chamch. & K.M.Wong, gen. nov.

Thaigardenia is a new genus of the Rubiaceae, allied to Gardenia J.Ellis, differing in the species being shrubs with a scrambling to thicket-forming habit or small trees with crooked sympodial trunks (vs Gardenia s.s. which are mostly trees with monopodial trunks or non-thicket forming bushes), developing extra-axillary buds and branches at different distances from a leaf-pair at the same node on stems and branches (sometimes these extra-axillary buds more than one per leaf axil) (vs with extra-axillary buds and branches always at the same level, and solitary buds in Gardenia), broad-triangular stipules fused along their edges (vs typical Gardenia spp. with stipules fused into a cylindric sheath split slightly on one side), infundibular corolla with insignificant tubular bases much shorter than the inflated upper portion (vs hypocrateriform corollas with relatively long basal tubes with a hardly widened uppermost portion in Gardenia), and pollen issued as tetrads. 

Type: Thaigardenia collinsiae (Craib) K.M.Wong, Teerawat. & Sungkaew.

Etymology.— The name Thaigardenia refers to Thailand, where studies into the taxonomy of this group were initiated, and where the generic type can be abundantly found, as well as Gardenia, the genus in which its species were earlier placed. Thailand has been eponymously included in the nomenclature of two other plant genera: Thaia Seidenf. (Orchidaceae) (Seidenfaden, 1975) and Thailentadopsis Kosterm. (Leguminosae) (Kostermans, 1977), both of which continue to be in use (Lewis & Schrire, 2003; Xiang et al., 2012).

Thaigardenia cambodiana (Pit.) K.M.Wong & Chamch., comb. nov.

Thaigardenia collinsiae (Craib) K.M.Wong, Teerawat. & Sungkaew, comb. nov.

Thaigardenia similis (Craib) K.M.Wong & L.Neo, comb. nov.

Incompletely understood taxon: Thaigardenia‘Nhatrang’ 

Sarawood Sungkaew, Watchara Arthan, Atchara Teerawatananon, Voradol Chamchumroon, Louise Neo and Khoon Meng Wong. 2024. Thaigardenia (Rubiaceae: Gardenieae), A New Genus distributed from Thailand to South China.  Thai Forest Bulletin (Botany). 52(1), 25–43. DOI:10.20531/tfb.2024.52.1.04

[Crustacea • 2024] The “Mr. and Mrs. Ghat crab”, Ghatiana dvirupa sp. nov. (Decapoda: Brachyura: Gecarcinucidae) from the Central Western Ghats of India

April 21, 2024, 9:55 am

≫ Next: [Botany • 2024] Leopoldia oztasii (Asparagaceae: Scilloideae) • A New Species from South Anatolia-Türkiye

≪ Previous: [Botany • 2024] Thaigardenia (Rubiaceae: Gardenieae) • A New Genus distributed from Thailand to South China

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Ghatiana dvirupa   Pati,  Bajantri & Hegde, 2024  DOI: 10.11646/zootaxa.5443.1.6

Abstract

A new species of gecarcinucid freshwater crab, Ghatiana dvirupa sp. nov., is described herein from the Kali Tiger Reserve of the Uttara Kannada district, Karnataka state, India. The Kali Tiger Reserve is a protected area, which is situated in the Central Western Ghats. The new species superficially most resembles Ghatiana sanguinolenta Pati, Thackeray & Pawar, 2023, from Karnataka but can easily be distinguished mainly by its ultimate article of the male first gonopod, which is distally gently curved inwards against the gently outwardly curved distal portion of the ultimate article in the latter species. Ghatiana dvirupa sp. nov. is also compared with the remaining species of the genus from Karnataka and some morphologically related species from Maharashtra. The difference in colour in life has been noticed between males and females of G. dvirupa sp. nov.; as such the common name of the new species is proposed as “Mr. and Mrs. Ghat Crab”. Ghatiana Pati & Sharma, 2014, is now known for 13 species, all from the Western Ghats of India. Karnataka currently possesses six species of Ghatiana, and many new species are yet to be described.

 

Crustacea, Taxonomy, new species, freshwater crab, Karnataka 

Ghatiana dvirupa sp. nov., colour in life: A, holotype male, ZSI-WRC C.2443; B, male, ZSI-WRC C.2447; C, paratype female, ZSI-WRC C.2444; D, paratype female, ZSI-WRC C.2446. Habitats of Ghatiana dvirupa sp. nov.: E, general habitat at type locality; F, male, ZSI-WRC C.2447, in crevice of laterite boulder. Ghatiana aurantiaca Pati & Sharma, 2014, colour in life: G, crab in its natural habitat during wet season (31 August 2013); H, crab outside of its habitat during dry season (28 November 2011). Figure G is credited to Satyen Mehta, which is modified from inaturalist.org/observations/51882255.

Sameer Kumar Pati, Parashuram Prabhu Bajantri, Gopalkrishna Dattatraya Hegde. 2024. The “Mr. and Mrs. Ghat crab”, Ghatiana dvirupa sp. nov. (Decapoda: Brachyura: Gecarcinucidae) from the Central Western Ghats of India.  Zootaxa. 5443(1); 116-126. DOI: 10.11646/zootaxa.5443.1.6

 

[Botany • 2024] Leopoldia oztasii (Asparagaceae: Scilloideae) • A New Species from South Anatolia-Türkiye

April 21, 2024, 8:09 pm

≫ Next: [Botany • 2021] Muscari inundatum (Asparagaceae: Scilloideae) • A New Species from southern Anatolia

≪ Previous: [Crustacea • 2024] The “Mr. and Mrs. Ghat crab”, Ghatiana dvirupa sp. nov. (Decapoda: Brachyura: Gecarcinucidae) from the Central Western Ghats of India

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Leopoldia oztasii Eker, Eroğlu & Pınar,   in Eroğlu, Pinar et Eker, 2024. Konya Morbaşı  ||  DOI: 10.11646/phytotaxa.633.1.3   facebook.com: Ismail Eker

 

Abstract

Leopoldia oztasii sp. nov. (Asparagaceae, Scilloideae) is described as a new species in this study. It spreads on the stony slopes of Konya province in the south of Türkiye. Leopoldia oztasii is similar to L. tenuiflora, but it is easily distinguished from it, by having larger bulbs, falcate leaves, shorter scape, conical inflorescence, longer pedicels, and larger capsules. In this study, the morphology, seed surface characteristics and ecology of L. oztasii were studied. A detailed description of the new species, a comparison table between the two species, and detailed photographs showing their differences are provided. The distribution areas of L. oztasii and L. tenuiflora in Türkiye are also presented on the map.

 

Asparagaceae, Leopoldia, morphology, new species, seed, taxonomy, Türkiye, Monocots 

“Leopoldia oztasii Eker, Eroğlu & Pınar” 

“Konya Morbaşı”

Hüseyin Eroğlu, Süleyman Mesut Pinar, İsmail Eker. 2024. A New Leopoldia (Asparagaceae, Scilloideae) Species from South Anatolia-Türkiye: Leopoldia oztasii.  Phytotaxa. 633(1); 17-28. DOI: 10.11646/phytotaxa.633.1.3

  facebook.com/IsmailEker946/posts/10161394503818817

[Botany • 2021] Muscari inundatum (Asparagaceae: Scilloideae) • A New Species from southern Anatolia

April 21, 2024, 8:50 pm

≫ Next: [Botany • 2021] Elatostema xingyiense (Urticaceae) • A New Species and A New Series of Elatostema from south-western China

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Muscari inundatum  Yıldırım & Eker,   in Eker et Yıldırım, 2021.  DOI: 10.11646/phytotaxa.484.2.3   Researchgate.net/publication/349366298

Abstract

A new species, Muscari inundatum (Asparagaceae) from Turkey, is described and illustrated. It is morphologically similar to M. neglectum and M. adilii, but differs mainly by its shouldered fertile flowers with erect to slightly recurved lobes at maturity. In this study, a comprehensive description, diagnostic characters, original photographs, detailed illustration, geographical distribution, conservation assessment, identification key, and taxonomic comments on the new species are presented.

Keywords: Amanos Mountains, Hatay, Mucari adilii, M. neglectum, new taxon, taxonomy, Turkey, Monocots

Early flowering stage of Muscari inundatum.  a-b: habitat (photographed by H. Yıldırım).

Mature flowering stage of Muscari inundatum. a: habit, b: inflorescence, c: infructescence (photographed by İ. Eker).

Muscari inundatum Yıldırım & Eker sp. nov.

Eponymy:—The specific epithet of the new species is derived from its habitat, as it grows in flooded places and near puddles.

İsmail Eker and Hasan Yıldırım. 2021. Muscari inundatum (Asparagaceae, Scilloideae), A New Species from southern Anatolia.  Phytotaxa. 484(2); 181–194. DOI: 10.11646/phytotaxa.484.2.3

  Researchgate.net/publication/349366298_Muscari_inundatum_a_new_species_from_southern_Anatolia

[Botany • 2021] Elatostema xingyiense (Urticaceae) • A New Species and A New Series of Elatostema from south-western China

April 22, 2024, 1:51 am

≫ Next: [Mollusca • 2024] Figuladra finlaysoni, F. robertirwini, F. bromileyorum & F. vidulus • Systematic Revision of the eastern Queensland Land Snail Genus Figuladra Köhler & Bouchet, 2020 (Eupulmonata,: Camaenidae) based on mitochondrial phylogenetics and comparative morpho-anatomy

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Elatostema xingyiense L.D. Duan & D.H.Yin,  in Yin, Huang, Lu et Duan, 2021. DOI: 10.3897/phytokeys.180.65813

Abstract

The new seriesElatostema section Weddelliaseries XingyiensiaL.D. Duan & D.H. Yin (Urticaceae) is described. In addition, its new species Elatostema xingyiense L.D. Duan & D.H. Yin, endemic to Guizhou Province, is also described and illustrated with photographs. The new series is morphologically similar to series Melanocarpa W.T. Wang and series Sublinearia W.T. Wang. The new species is most similar to E. melanocarpum, E. sublineare, E. obscurinerve, E. langicuspe and E. youyangense in morphology, but can be visibly distinguished by a combination of characters, including leaf vein, male inflorescences, female inflorescences and persistent tepals.

Keywords: Elatostema xingyiense, series Xingyiensia, taxonomy

Elatostema xingyiense L.D. Duan & D.H.Yin  A habit B male flower C male inflorescence in fresh specimen D male inflorescence E male inflorescence and secondary peduncle F female inflorescence in fresh specimen G female inflorescence H blades in fresh specimen I bract longitudinally 3-ribbed.  Photos: Lin-Dong Duan and Dan–Hong Yin.

Elatostema xingyiense L.D. Duan & D.H. Yin, sp. nov.

Relationship: This new species is closely related and similar to Elatostema melanocarpum (Wang 2013), Elatostema sublineare (Wang 1980), Elatostema obscurinerve (Wang 1980), Elatostema langicuspe (Wang 2013) and Elatostema youyangense (Wang 1984). This new species is visibly distinguished by a combination of characters: leaf mid-vein impressed, leaf margin revolute (mid-vein flat, margin flat in the other five species); pistillate inflorescence peduncle dichotomously branched (not branched in the other five species) (Table 1).

 ...

 Dan-Hong Yin, Teng-Fei Huang, Zhen Lu and Lin-Dong Duan. 2021. A New Species and A New Series of Elatostema (Urticaceae) from south-western China. PhytoKeys. 180: 65-71.  DOI: 10.3897/phytokeys.180.65813

[Mollusca • 2024] Figuladra finlaysoni, F. robertirwini, F. bromileyorum & F. vidulus • Systematic Revision of the eastern Queensland Land Snail Genus Figuladra Köhler & Bouchet, 2020 (Eupulmonata,: Camaenidae) based on mitochondrial phylogenetics and comparative morpho-anatomy

April 22, 2024, 2:08 am

≫ Next: [Ichthyology • 2024] Pimelodella guato • A New Species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai Basin, Brazil, with a discussion regarding its distribution

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Figuladra robertirwini sp. nov., F. vidulus sp. nov., etc. L. Stanisic, J. Stanisic &  Köhler, 2024 DOI: 10.1080/13235818.2024.2321650    twitter.com/SocStudMollDiv

ABSTRACT

The current study revises the systematic taxonomy of Figuladra, a genus of camaenid land snails endemic to eastern Queensland, based on the investigation of many recently collected ethanol-preserved samples as well as historic museum material, including types. We employed comparative analyses to investigate the variation in morphological features (shell, penial anatomy) and performed phylogenetic analyses of mitochondrial 16S rDNA sequences to test species hypotheses. Phylogenetic analyses recovered three principal mitochondrial clades, one occurring in mid-east Queensland, one in south-east Queensland, and another in the upland areas of south-east Queensland. We recognise altogether 15 accepted species, including four that are newly described herein (i.e., Figuladra finlaysoni sp. nov., F. robertirwini sp. nov., F. bromileyorum sp. nov. and F. vidulus sp. nov.). The status of 11 previously described species has been assessed and revised diagnoses are provided for each of these. Species of the south-east Queensland clade revealed comparatively low levels of genetic and morphological differentiation and may represent examples of more recent, conceivably ongoing, speciation. Figuladra species have allopatric distributions with their ranges being separated by altitudinal or riverine barriers. Particularly the St Lawrence Gap dry corridor has been identified as a major biogeographic barrier separating two principal clades of Figuladra.

KEYWORDS: Biogeography, gastropoda, new species, phylogeny, systematics, taxonomy

Lorelle Stanisic, John Stanisic and Frank Köhler. 2024. Systematic Revision of the eastern Queensland Land Snail Genus Figuladra Köhler and Bouchet, 2020 based on mitochondrial phylogenetics and comparative morpho-anatomy (Eupulmonata, Camaenidae). Molluscan Research. 44(2); 160-208. DOI: 10.1080/13235818.2024.2321650  

 twitter.com/SocStudMollDiv/status/1766275246620053604

[Ichthyology • 2024] Pimelodella guato • A New Species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai Basin, Brazil, with a discussion regarding its distribution

April 22, 2024, 6:55 am

≫ Next: [Ichthyology • 2024] Rhinolepadichthys gen. nov. • A New Generic Name for the “Lepadichthys” lineatus complex (Gobiesocidae: Diademichthyinae) with A Rediagnosis of Discotrema, a senior synonym of Unguitrema, and Comments on their phylogenetic relationships

≪ Previous: [Mollusca • 2024] Figuladra finlaysoni, F. robertirwini, F. bromileyorum & F. vidulus • Systematic Revision of the eastern Queensland Land Snail Genus Figuladra Köhler & Bouchet, 2020 (Eupulmonata,: Camaenidae) based on mitochondrial phylogenetics and comparative morpho-anatomy

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Pimelodella guato Pierre & Slobodian, 2024   ni.bio.br/1982-0224-2023-0110

Abstract​ 

A new species of Pimelodella is described from the rio Paraguai basin in Mato Grosso do Sul and Mato Grosso States, Brazil. The new species distinguishes from all other members of the genus based on a unique combination of characteristics, which include: dorsal profile straight from snout to dorsal-fin, maxillary barbel reaching at least the anal-fin terminus when parallel to main body axis, robust dorsal-fin spine bearing small spinules along three-fourths of its posterior margin, 41–42 total vertebrae (rarely 43 or 44), 13–23 large and retrorse blades at the posterior margin of the pectoral-fin spine, and dorsolateral region of body slightly darkened. This study also discusses the ichthyofaunal similarities between the Paraguai and Amazon basins, shedding light on their biogeographic history. Additionally, the research includes considerations about the sexual dimorphism of Pimelodella and provides an identification key for the Pimelodella species found in the Paraguai basin.

Keywords: Biogeography, Catfishes, Identification key, Sexual dimorphism, Taxonomy.

Pimelodella guato, holotype, ZUFMS-PIS 8515, 78.5 mm SL, Brazil, Mato Grosso do Sul, Corumbá municipality, rio Paraguai basin, rio Miranda, sandy beaches at Passo do Lontra region, ...  A. Dorsal; B. Left lateral; and C. Ventral views. Scale bar = 1 cm.

Pimelodella guato, new species

Diagnosis. Pimelodella guato differs from all Pimelodella species except P. boliviana, P. chaparae, P. cristata, P. cruxenti, P. dorseyi, P. geryi, P. gracilis, P. howesi, P. humeralis, P. laurenti, P. longibarbata, P. longipinnis, P. martinezi, P. megalops, P. mucosa, P. notomelas, P. odynea, P. ophthalmica, P. parnahybae, P. serrata, P. steindachneri, P. taeniophora, P. tapatapae, P. wesselii, and P. witmeri by the long maxillary barbel, reaching at least the anal-fin terminus when parallel to main body axis (vs. reaching at best posterior limit of anal-fin base). It differs from P. longipinnis and P. tapatapae by having the supraoccipital process reaching the anterior nuchal plate (vs. not reaching, gap between distal terminus of supraoccipital process and anterior nuchal plate ca. 20–25% of supraoccipital process length). It differs from P. boliviana, P. cruxenti, P. geryi, P. laurenti, P. martinezi, P. megalops, P. notomelas, P. odynea, and P. taeniophora by having a robust dorsal-fin spine, bearing small, straight spinules along three-fourths of its posterior margin (vs. dorsal-fin spine not particularly robust, with posterior margin spinules inconspicuous or absent). It differs from P. cristata, P. dorseyi, P. gracilis, P. howesi, P. humeralis, P. ophthalmica, P. parnahybae, P. steindachneri, P. wesselii,and P. witmeri by usually having 41–42 (rarely 43 or 44) total vertebrae (vs. always 43–44 in P. howesi; 46 or more in the remaining species). It further differs from P. howesi by having the dorsolateral region of body slightly darkened (vs. not darkened), dorsal fin with light brown stripe near its origin, followed by a hyaline stripe, and distal half dark (vs. basal half of dorsal fin hyaline, and distal half dark), and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third (vs. dorsal lamina reaching the supraoccipital process along all its extension). It differs from P. mucosa and P. longibarbata by the preoperculomandibular laterosensory canal openings at dentary not particularly large (vs. large openings). It differs from P. chaparae, P. longibarbata, and P. serrata by the wide midlateral stripe (vs. narrow) and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third (vs. first half in P. longibarbata; and almost its entire extension in P. chaparae and P. serrata) (Figs. 2A, D).

Etymology. The species name guato is in honor of the indigenous Guató people, who are affectionately known as “people of the Pantanal waters” due to their primary mode of transportation, canoes. Historically, the Guató people inhabited an extensive area along the rio Paraguai (Schmidt, 1942). However, in the 1940s, they began to lose their territory due to cattle ranching, and many relocated to cities such as Cáceres and Corumbá. This dispersal led to a reduction in the Guató population, and since then, they have been fighting for recognition of their ethnicity and the demarcation of their lands (Costa, 2015). The choice of guato is a homage to the resilience and cultural significance of these people who inhabit the same region where the new species is found. It also recognizes the ongoing struggles with land delimitation that indigenous communities continue to face, particularly in Brazil. A noun in apposition.

Veida Pierre and Veronica Slobodian. 2024. A New Species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai Basin, Brazil, with a discussion regarding its distribution. Neotrop Ichthyol. 22(1): e230110. DOI: 10.1590/1982-0224-2023-0110

  ni.bio.br/1982-0224-2023-0110

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[Ichthyology • 2024] Rhinolepadichthys gen. nov. • A New Generic Name for the “Lepadichthys” lineatus complex (Gobiesocidae: Diademichthyinae) with A Rediagnosis of Discotrema, a senior synonym of Unguitrema, and Comments on their phylogenetic relationships

April 22, 2024, 6:55 am

≫ Next: [Ichthyology • 2024] Serrasalmus magallanesi • A New Species of Piranha (Characiformes: Serrasalmidae: Serrasalmus) from the Upper Madeira River System, Amazon Basin, Bolivia

≪ Previous: [Ichthyology • 2024] Pimelodella guato • A New Species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai Basin, Brazil, with a discussion regarding its distribution

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Representatives of diademichthyine clingfishes. A Rhinolepadichthys lineatus (Oman); B Rhinolepadichthys geminus (Anilao, Philippines); C Rhinolepadichthys geminus (Okinoerabu Islands, Amami Islands, Japan); D Discotrema crinophilum (Amami-oshima Island, Amami Islands, Japan: KPM-NR 78755); E Lepadichthys frenatus (Lord Howe Island, Australia); F Diademichthys lineatus (Lembeh Strait, Indonesia: KPM-NR 147468). in Fujiwara, Motomura, Summers & Conway, 2024.  DOI: 10.3897/vz.74.e113955 All images except F with sides reversed. photos by J. Randall, J. Eyre and K. Uehara.

Abstract

Rhinolepadichthys, a new genus of the gobiesocid subfamily Diademichthyinae, is described for the “Lepadichthys” lineatus complex (including Rhinolepadichthys geminus comb. nov., R. heemstraorumcomb. nov., R. lineatuscomb. nov., and R. polyastrouscomb. nov.). Detailed investigation of external morphology and osteological anatomy of the new genus and related genera suggests that Rhinolepadichthys represents the sister genus to Discotrema, based on the following putative synapomorphies: (1) presence of a hardened (potentially keratinized) cap on the surface of at least some disc papillae (vs. surface of disc papillae soft, without hardened cap); and (2) the anterolateral part of the ventral postcleithrum extended anteriorly as a well-developed rod-like process, its tip close to the base of pelvic-fin soft ray 4 (vs. only weakly pointed, or irregular). Compared with Discotrema, Rhinolepadichthys gen. nov. is distinguished by the presence of a row of 8–12 large papillae on the inner surface of the upper and lower lips (vs. inner surface of lips smooth, without distinct papillae); the absence (vs. presence) of a well-developed lateral process on the pterotic immediately posterior to the opening of the otic canal; the presence (vs. absence) of gill rakers on the anterior edge of ceratobranchials 1–3; the presence (vs. absence) of gill rakers on the posterior edge of ceratobranchial 4; having the upper pharyngeal teeth arranged in a loose patch on the ventral surface of the pharyngobranchial 3 toothplate, with tooth tips directed posteroventrally (vs. arranged in a single row along posteroventral edge of the pharyngobranchial 3 toothplate, with tooth tips directed posteriorly); features of the adhesive disc, including outline of disc papillae roughly hexagonal or ovoid and with a flattened surface (vs. outline circular, at least some with raised, dome-like surface); the absence (vs. presence) of a deep cavity at the center of disc region C; the absence (vs. presence) of three paired and one median cluster of small papillae (reminiscent of bunches of grapes) across the surface of the adhesive disc; and having the ventral postcleithrum entire, not divided into two separate, articulating elements (vs. ventral postcleithrum divided into an anterior and posterior element, separated via a specialized joint). Reexamination of materials of the poorly known genus Unguitrema, considered a close relative of Discotrema, revealed no morphological differences between the two genera. Unguitrema therefore represents a junior synonym of Discotrema.

Keywords: Clingfishes, Indo-Pacific, morphology, taxonomy, Teleostei

Representatives of diademichthyine clingfishes. A Rhinolepadichthys lineatus (Oman: J. Randall); B Rhinolepadichthys geminus (Anilao, Philippines: J. Eyre); C Rhinolepadichthys geminus (Okinoerabu Islands, Amami Islands, Japan: K. Uehara); D Discotrema crinophilum (Amami-oshima Island, Amami Islands, Japan: KPM-NR 78755, K. Uchino); E Lepadichthys frenatus (Lord Howe Island, Australia: J. Eyre); F Diademichthys lineatus (Lembeh Strait, Indonesia: KPM-NR 147468, K. Uchino). All images except F with sides reversed.

Rhinolepadichthys gen. nov.

Included species: The genus contains the following four valid species, previously included in the “Lepadichthys” lineatus complex by Fujiwara and Motomura (2021): Rhinolepadichthys geminus (Fujiwara and Motomura, 2021) comb. nov., Rhinolepadichthys heemstraorum (Fujiwara and Motomura, 2021) comb. nov., Rhinolepadichthys lineatus (Briggs, 1966) comb. nov., and Rhinolepadichthys polyastrous (Fujiwara and Motomura, 2021) comb. nov.

Etymology: The suffix rhino-, meaning nose, in combination with Lepadichthys, a genus of the Diademichthyinae. In reference to the pointed snout in members of this genus, which distinguishes the new genus from Lepadichthys (sensu stricto). Gender masculine.

Discotrema Briggs, 1976

Included species: The genus contains the following four valid species, Discotrema crinophilum Briggs, 1976, Discotrema monogrammum Craig & Randall, 2008, Discotrema nigrum (Fricke, 2014), comb. nov. (validity tentative, see below), and Discotrema zonatum Craig & Randall, 2008.

 

Kyoji Fujiwara, Hiroyuki Motomura, Adam P. Summers and Kevin W. Conway. 2024. A New Generic Name for the “Lepadichthys” lineatus complex with A Rediagnosis of Discotrema, a senior synonym of Unguitrema, and Comments on their phylogenetic relationships (Gobiesocidae: Diademichthyinae). Vertebrate Zoology. 74: 279-301. DOI: 10.3897/vz.74.e113955

 

[Ichthyology • 2024] Serrasalmus magallanesi • A New Species of Piranha (Characiformes: Serrasalmidae: Serrasalmus) from the Upper Madeira River System, Amazon Basin, Bolivia

April 22, 2024, 6:55 am

≫ Next: [Herpetology • 2024] Cnemaspis persephone & C. sanctus • Two New nocturnal Species of South Asian Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) of the wynadensis clade from the southern Western Ghats, India

≪ Previous: [Ichthyology • 2024] Rhinolepadichthys gen. nov. • A New Generic Name for the “Lepadichthys” lineatus complex (Gobiesocidae: Diademichthyinae) with A Rediagnosis of Discotrema, a senior synonym of Unguitrema, and Comments on their phylogenetic relationships

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Serrasalmus magallanesi Gallo-Cardozo, Maldonado, Careaga & Carvajal-Vallejos, 2024 DOI: 10.1134/S0032945224700036   facebook.com/FlavioGalloCardozo

 

Abstract

A new species of piranha, in the genus Serrasalmus (Characiformes, Serrasalmidae), is described from tributaries of the upper Madeira River drainage (Bolivian Amazon Basin). This new species exhibits a similar caudal-fin color like that observed in S. hollandi, and review of the literature suggested that former studies have misidentified these two species. The new species can be diagnosed morphologically from other congeners, but genetic variation of the COI sequence data showed little difference (~1%) from similar, morphologically recognized species. Since Serrasalmus species are widespread and morphologically difficult to identify, a key for identifying Bolivian species of this genus is presented.

 Keywords: COI, morphology, osteology, taxonomy 

  

Serrasalmus magallanesi, New Species

Etymology. Serrasalmus magallanesi sp. nov. is named in honor and memoriam of Frank Magallanes, in recognition of his permanent collaboration with ichthyologists and Serrasalmus fans, mainly through his website OPEFE (https://www.opefe.com). Magallanes passed away in May 2022.

F. Gallo-Cardozo, M. Maldonado, M. Careaga and F. M. Carvajal-Vallejos. 2024. A New Species of Piranha (Serrasalmus, Serrasalmidae) from the Upper Madeira River System, Amazon Basin, Bolivia.  Journal of Ichthyology. DOI: 10.1134/S0032945224700036

  facebook.com/FlavioGalloCardozo/posts/7723189084379968

[Herpetology • 2024] Cnemaspis persephone & C. sanctus • Two New nocturnal Species of South Asian Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) of the wynadensis clade from the southern Western Ghats, India

April 22, 2024, 9:50 pm

≫ Next: [Ichthyology • 2024] Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)

≪ Previous: [Ichthyology • 2024] Serrasalmus magallanesi • A New Species of Piranha (Characiformes: Serrasalmidae: Serrasalmus) from the Upper Madeira River System, Amazon Basin, Bolivia

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Cnemaspis persephone & C. sanctus   Khandekar, Thackeray & Agarwal, 2024 DOI: 10.11646/zootaxa.5443.3.3   facebook.com/AkshayKhandekarAK

 

Abstract

We describe two new medium-bodied, nocturnal species of South Asian Cnemaspis from the southern Western Ghats, Tamil Nadu, India in an integrative taxonomic framework. The two new species are phylogenetically and morphologically allied to the wynadensis clade and can be distinguished from other species of the wynadensis clade and each other by a combination of nonoverlapping morphological characters including body size, homogeneous dorsal pholidosis, the number of femoral pores and poreless scales separating these series, the number of ventral scales across the midbody and longitudinal scales from mental to cloaca, the number of dorsal granules around the body; and an uncorrected pairwise ND2 sequence divergence of 8.2–22.9 % (16S 4.2–12.2 %) from all other members in the clade. These are the first members of the wynadensis clade known from south of the Palghat Gap apart from C. bireticulata, a putative junior synonym of C. sisparensis that is likely to be distinct owing to morphological differences and geographic distance. Cnemaspis sanctus sp. nov. is from low coastal hills in Kanyakumari District at the southern tip of the Western Ghats and Cnemaspis persephone sp. nov. is from the Anaimalais, Anaimalai Tiger Reserve. Many more undescribed species of the wynadensis clade and South Asian Cnemaspis are likely to be found across the southern Western Ghats.

Asia, biodiversity hotspot, dwarf geckos, integrative taxonomy, phylogeny, species complex, Squamata,

Akshay Khandekar, Tejas Thackeray, Ishan Agarwal. 2024. Two New nocturnal Species of South Asian Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) of the wynadensis clade from the southern Western Ghats, India.  Zootaxa. 5443(3); 353-386. DOI: 10.11646/zootaxa.5443.3.3

  facebook.com/AkshayKhandekarAK/posts/7324976984267598

[Ichthyology • 2024] Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)

April 22, 2024, 11:58 pm

≫ Next: [Botany • 2024] Primulina hoangmongii (Gesneriaceae) • A New Species from northern Vietnam

≪ Previous: [Herpetology • 2024] Cnemaspis persephone & C. sanctus • Two New nocturnal Species of South Asian Cnemaspis Strauch, 1887 (Squamata: Gekkonidae) of the wynadensis clade from the southern Western Ghats, India

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Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii) in Near & Thacker, 2024 DOI: 10.3374/014.065.0101   twitter.com/TJNear

Abstract

Classification of the tremendous diversity of ray-finned fishes (Actinopterygii) began with the designation of taxonomic groups on the basis of morphological similarity. Starting in the late 1960s morphological phylogenetics became the basis for the classification of Actinopterygii but failed to resolve many relationships, particularly among lineages within the hyperdiverse Percomorpha. The introduction of molecular phylogenetics led to a dramatic reconfiguration of actinopterygian phylogeny. Refined phylogenetic resolution afforded by molecular studies revealed an uneven diversity among actinopterygian lineages, resulting in a proliferation of redundant group names in Linnean-ranked classifications. Here we provide an unranked phylogenetic classification for actinopterygian fishes based on a summary phylogeny of 830 lineages of ray-finned fishes that includes all currently recognized actinopterygian taxonomic families and 287 fossil taxa. We provide phylogenetic definitions for 90 clade names and review seven previously defined names. For each of the 97 clade names, we review the etymology of the clade name, clade species diversity and constituent lineages, clade diagnostic morphological apomorphies, review synonyms, and provide a discussion of the clade's nomenclatural and systematic history. The new classification is free of redundant group names and includes only one new name among the 97 clade names we review and describe, yielding a comprehensive classification that is based explicitly on the phylogeny of ray-finned fishes that has emerged in the 21st century and rests on the foundation of the previous 200 years of research on the systematics of ray-finned fishes.

KEYWORDS: Teleostei, Holostei, Ostariophysi, Euteleostei, Acanthomorpha, Percomorpha, Perciformes, phylogeny, PhyloCode, taxonomy

    

 

Thomas J. Near and Christine E. Thacker. 2024. Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii). Bulletin of the Peabody Museum of Natural History. 65 (1); 3-302. DOI: 10.3374/014.065.0101

  twitter.com/TJNear/status/1781441614017171563

[Botany • 2024] Primulina hoangmongii (Gesneriaceae) • A New Species from northern Vietnam

April 23, 2024, 12:57 am

≫ Next: [Crustacea • 2024] Wollastenothoe minuta • “Hidden” Biodiversity: A New amphipod Genus (Amphipoda: Stenothoidae) dominates Epifauna in Association with a mesophotic Black Coral Forest

≪ Previous: [Ichthyology • 2024] Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)

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Primulina hoangmongii K.S. Nguyen, Aver. & C.W. Lin,  in Nguyen, Averyanov et Lin, 2024. DOI: 10.11646/phytotaxa.645.2.7   facebook.com/Darthvaderiana

 

Abstract

Primulina hoangmongii, a new species from Yen Bai Province of northern Vietnam, is described and illustrated. It is similar to P. albicalyx in its robust rhizome, rosette leaves, and yellow flowers. However, P. hoangmongii is clearly distinguished by its linear to narrowly-lanceolate bracts, 8–12 × 2–3 mm (vs. narrowly ovate to ovate, 18–25 × 9–14 mm), green calyx (vs. white), rich yellow corolla (vs. pale yellowish), base of the upper lip flat, thin and rich pure yellow (vs. swelling between lobes, yellow-brownish), and a ligulate, entire stigma (vs. deltoid, 2-lobed). The conservation status of P. hoangmongii is preliminarily assessed according to IUCN criteria as Critically Endangered (CR).

plant diversity, endemism, plants of limestone karst, plant taxonomy, Eudicots

Primulina hoangmongii

 

Khang Sinh Nguyen, Leonid V. Averyanov and Che Wei Lin. 2024. Primulina hoangmongii (Gesneriaceae), A New Species from northern Vietnam.  Phytotaxa. 645(2); 179-185. DOI: 10.11646/phytotaxa.645.2.7

  facebook.com/Darthvaderiana/posts/10225241642771693

  

[Crustacea • 2024] Wollastenothoe minuta • “Hidden” Biodiversity: A New amphipod Genus (Amphipoda: Stenothoidae) dominates Epifauna in Association with a mesophotic Black Coral Forest

April 23, 2024, 5:25 am

≫ Next: [Botany • 2024] Kaempferia noctiflora var. thepthepae (Zingiberaceae) • A New Taxon from Thailand

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Wollastenothoe minuta Gouillieux & Navarro-Mayoral,  in Navarro-Mayoral, Gouillieux, Fernandez-Gonzalez, Tuya, Lecoquierre, ... et Otero-Ferrer, 2024. DOI: 10.1007/s00338-024-02491-y  twitter.com/philebo73

Abstract

Black corals are important components of mesophotic and deep-water marine habitats. Their presence at great depths (e.g., 50 to 200 m) makes accessibility difficult, limiting our understanding of the associated biodiversity. Amphipods dominate vagile epifauna in marine habitats around the world, fulfilling important ecosystem functions. However, there are no studies on amphipods exclusively associated with black corals, including relationships between their ecological patterns (e.g., abundances) and the size of coral colonies. We investigated the epifaunal composition and abundance associated with black coral colonies of Antipathella wollastoni in the subtropical eastern Atlantic Ocean. In total, 1,736 epifaunal individuals were identified, of which 1,706 (98.27%) were amphipods, belonging to 6 taxa. We identified and described a new amphipod genus and species within the Stenothoidae family, Wollastenothoe minuta gen. nov., sp. nov., which outnumbered the amphipod assemblage (86.15%) and provided a complete taxonomic key of Stenothoidae family including this new finding. For the first time, the association between an amphipod species and a black coral was described, including a strong correlation between coral colony size and amphipod abundances. This study demonstrates that epifauna associated with mesophotic black corals remains largely undescribed.

Keywords: Stenothoidae, Key to species, Antipathella wollastoni, Epifauna, Marine animal forests

Wollastenothoe minuta gen. nov., sp. nov. SEM pictures, MNHN-IU-2021–8808. a Lateral view; b Maxilla 2, left; c Lower lip; d Gnathopod 2, outer face, dactylus and propodus; e Gnathopod 1, inner face, dactylus and propodus; f Urosome, lateral view.  Scale bars: a: 0.25 mm; b: 0.01 mm; c: 0.01 mm, d, e: 0.02; f: 0.1 mm

 

Taxonomy

Class Malacostraca Latreille 1806

Order Amphipoda Latreille 1816

Suborder Senticaudata Lowry & Myers 2013

Family Stenothoidae Boeck 1871

Genus Wollastenothoe Gouillieux & Navarro-Mayoral gen. nov.

Diagnosis of the new genus: Body dorsally smooth. Head without rostrum. Antenna 1 article 1 not nasiform; accessory flagellum with 1 article. Mandible palp with 1 article, molar process conical. Maxilla 1 palp with 2 articles. Gnathopod 1 and 2 subchelate, subequal. P5 basis rectolinear without posterodistal lobe. P6-7 basis widened.

Etymology: The genus name, Wollastenothoe, refers the combination of host name corresponding to the species of black coral (i.e., Antipathella wollastoni) with the genus name Stenothoe belonging to the Stenothoidae family.

  Wollastenothoe minuta Gouillieux & Navarro-Mayoral gen. nov., sp. nov.,  

Diagnosis: Body length less than 1.5 mm. Antenna subequal, shorter than half length of body. Antenna 1 accessory flagellum with 1 small article. Gnathopod 1 and 2 subchelate, subequal. Pereonite 4 slightly longer than pereonite 3. Coxa 4 ventral margin concave. Coxae 5–7 posterior margin with a notch. P5 basis rectolinear without posterodistal lobe. P6-7 basis widened with posterodistal lobe reaching along half of ischium, merus posterodistal lobe reaching more than half length of carpus. Telson with dorsal spines.

 

Etymology. The epithet specific of the species, minuta, refers to its small size.

Type locality. Puerto del Carmen, Lanzarote, Canary Islands, Spain.

Sandra Navarro-Mayoral, Benoit Gouillieux, Victoria Fernandez-Gonzalez, Fernando Tuya, Ninon Lecoquierre, Lorenzo Bramanti, Lucas Terrana, Fernando Espino, Jean-François Flot, Ricardo Haroun and Francisco Otero-Ferrer. 2024. “Hidden” Biodiversity: A New amphipod Genus dominates Epifauna in Association with a mesophotic Black Coral Forest. Coral Reefs. DOI: 10.1007/s00338-024-02491-y

 twitter.com/philebo73/status/1780971901126328651

[Botany • 2024] Kaempferia noctiflora var. thepthepae (Zingiberaceae) • A New Taxon from Thailand

April 23, 2024, 7:39 am

≫ Next: [Botany • 2024] Casearia septandra (Salicaceae) • A New tree Species from the Mountains of Guinea, West Africa

≪ Previous: [Crustacea • 2024] Wollastenothoe minuta • “Hidden” Biodiversity: A New amphipod Genus (Amphipoda: Stenothoidae) dominates Epifauna in Association with a mesophotic Black Coral Forest

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Kaempferia noctiflora var. thepthepae Noppornch. & Somnoo, in Nopporncharoenkul, Jenjittikul, Somnoo, Meewasana et Tanming, 2024. DOI: 10.5735/085.061.0112   facebook.com: Nattapon Nopporncharoenkul

Taxonomic study of Kaempferia subgen. Protanthium (Zingiberaceae) is difficult due to a high degree of intraspecific morphological variation in several species and the implied morphological overlap among the currently recognized species. Herein, we clarify the taxonomic circumscription of K. noctiflora, a rare species endemic to Chiang Mai Province (N Thailand), by describing Kaempferia noctiflora var. thepthepae Noppornch. & Somnoo, var. nova. It differs from K. noctiflora var. noctiflora especially by the labellum colouration and flowering time. The diagnostic characters of this novel variety are discussed and compared with those of morphologically similar taxa. Images of the plants, habit and dissected flowers, and information on the phenology, distribution and ecology are provided. Kaempferia noctiflora var. noctiflora and var. thepthepae are considered Vulnerable and Endangered, respectively.

 

  

Nattapon Nopporncharoenkul, Thaya Jenjittikul, Thunchanok Somnoo, Jiraporn Meewasana, Wattana Tanming. 2024. Kaempferia noctiflora var. thepthepae (Zingiberaceae), A New Taxon from Thailand.  Ann. Bot. Fennici. 61: 79–92. DOI: 10.5735/085.061.0112

  facebook.com/iSIRBOOM/posts/7894671867229203

  facebook.com/NSMThailand/posts/715587647422884

 “เปราะนพรัตน์” (K. noctiflora var. thepthepaeNoppornch. & Somnoo) พืชเฉพาะถิ่นของไทยพันธุ์ใหม่ของโลก อยู่ในวงศ์ขิงข่า สกุลเปราะหอม สกุลย่อยดอกดิน (Protanthium) มีสถานะทางอนุกรมวิธานเป็น พันธุ์ (variety) ของเปราะชนิด “เปราะราตรี, เปราะใบม่วง” (Kaempferia noctiflora Noppornch. & Jenjitt.) พบเฉพาะ อ.ดอยสะเก็ด และ อ.สันกำแพง จ.เชียงใหม่ เท่านั้น ผลงานการค้นพบได้ถูกตีพิมพ์ลงวารสาร Annales Botanici Fennici ฉบับที่ 61 เมื่อวันที่ 7 มี.ค. 2567

เปราะราตรี จัดจำแนกย่อยเป็น 2 พันธุ์ (variety) ตามช่วงเวลาการบานและสีของกลีบปากที่แตกต่างกัน

เปราะราตรี - Kaempferia noctiflora var. noctiflora 

เปราะนพรัตน์ - K. noctiflora  var. thepthepae Noppornch. & Somnoo. 

รายงานการค้นพบโดย ทีมนักวิจัยจากองค์การพิพิธภัณฑ์วิทยาศาสตร์แห่งชาติ - NSM นำโดย ดร.ณัฐพล นพพรเจริญกุล นักวิชาการกองวิชาการพฤกษศาสตร์ สำนักวิชาการพิพิธภัณฑ์ธรรมชาติวิทยา NSM และ ผศ.ดร.ทยา เจนจิตติกุล ภาควิชาพฤกษศาสตร์ คณะวิทยาศาสตร์ มหาวิทยาลัยมหิดล น.ส.ธัญชนก สมหนู นักศึกษาระดับปริญญาโท ภาควิชาชีววิทยา คณะวิทยาศาสตร์ มหาวิทยาลัยขอนแก่น น.ส.จิราภรณ์ มีวาสนา นักวิชาการป่าไม้ชำนาญการพิเศษ สำนักบริหารพื้นที่อนุรักษ์ที่ 16 กรมอุทยานแห่งชาติ สัตว์ป่าและพันธุ์พืช และดร.วัฒนา ตันมิ่ง สวนพฤกษศาสตร์สมเด็จพระนางเจ้าสิริกิติ์ 

 www.nsm.or.th/nsm/th/node/54772

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[Botany • 2024] Casearia septandra (Salicaceae) • A New tree Species from the Mountains of Guinea, West Africa

April 23, 2024, 7:44 am

≫ Next: [Entomology • 2023] Kalimantanossus kongkeoi • A New Species of Kalimantanossus Yakovlev, 2011 (Lepidoptera: Cossidae: Cossinae) from Laos

≪ Previous: [Botany • 2024] Kaempferia noctiflora var. thepthepae (Zingiberaceae) • A New Taxon from Thailand

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Casearia septandra Breteler & Baldé,  in Breteler et Baldé, 2024.  DOI: 10.1007/s12225-024-10166-8   twitter.com/KewBulletin

Summary

In the synopsis of Casearia Jacq. in West and Central Africa (Breteler 2008), only a single, poor collection (Adam 3972), identified as C. prismatocarpa Mast., was recorded from the mountains of Guinea. More recently, some other flowering and fruiting specimens of Casearia have been collected from the same region as Adam’s specimen and together they represent a new species. It is illustrated and named herein as Casearia septandra, its distribution is mapped and conservation status assessed as Endangered, according to the IUCN criteria. A key to the four Casearia species of the Upper Guinea region of West Africa is presented.

Key Words: endangered, endemic, montane rainforest, taxonomy, woody plant

Casearia septandra. A leafy branchlet; B fruits; C dehisced fruit. A – B from Baldé 1001; C from C. A. Couch et al. 550. photos: A – B © A. Baldé; C © X. van der Burgt

Casearia septandra Breteler & Baldé sp. nov.

F. J. Breteler and A. Baldé. 2024. Casearia septandra (Salicaceae), A New tree Species from the Mountains of Guinea, West Africa. Kew Bulletin. DOI: 10.1007/s12225-024-10166-8

  twitter.com/KewBulletin/status/1779796247424950603

[Entomology • 2023] Kalimantanossus kongkeoi • A New Species of Kalimantanossus Yakovlev, 2011 (Lepidoptera: Cossidae: Cossinae) from Laos

April 24, 2024, 1:37 am

≫ Next: [Arachnida • 2023] Leiurus nigellus • A New remarkable Species of Leiurus Ehrenberg, 1828 (Scorpiones: Buthidae) from Saudi Arabia

≪ Previous: [Botany • 2024] Casearia septandra (Salicaceae) • A New tree Species from the Mountains of Guinea, West Africa

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[1] Kalimantanossus kongkeoi Yakovlev, Prozorov, Prozorova & Müller, 2023;  [2-4] K. microgenitalis (Yakovlev, 2004) DOI: 10.37828/em.2023.69.15   Researchgate.net/publication/375801094

Abstract

The article describes Kalimantanossus kongkeo, sp. n. (Lepidoptera, Cossidae: Cossinae) distributed in the Central Laos (Xiangkhouang Province). The article has nine illustrations. The world catalog of the genus Kalimantanossus Yakovlev, 2011 is presented.

Figures 1−5. Kalimantanossus, adult males:  1. Kalimantanossus kongkeoi, holotype (coll. G. Müller, Freising);  2. K. microgenitalis, holotype (MWM); 3. K. microgenitalis, Borneo, Trus-Madi (MWM); 4. K. microgenitalis, Borneo, Trus-Madi (MWM); 5. K. microgenitalis in nature, Trus Madi Entomology Camp, Nuluhon Trusmadi Forest Reserve, Keningau District, Sabah, Borneo. Lower montane dipterocarp forest, 1050 m, 5.442964 N / 116.451075 E (photo by Alexey Yakovlev).

1. Kalimantanossus kongkeoi, holotype (coll. G. Müller, Freising); 2. K. microgenitalis, holotype (MWM); 3. K. microgenitalis, Borneo, Trus-Madi (MWM); 4. K. microgenitalis, Borneo, Trus-Madi (MWM); 5. K. microgenitalis in nature, Trus Madi Entomology Camp, Nuluhon Trusmadi Forest Reserve, Keningau District, Sabah, Borneo. Lower montane dipterocarp forest, 1050 m, 5.442964 N / 116.451075 E (photo by Alexey Yakovlev).

Kalimantanossus kongkeo, sp. n. 

Roman V. Yakovlev, Alexey M. Prozorov, Tatiana A. Prozorova, Günter C. Müller. 2023. New Species of Kalimantanossus Yakovlev, 2011 (Lepidoptera, Cossidae: Cossinae) from Laos with the genus catalogue. Ecologica Montenegrina. 69; 154-159. DOI: 10.37828/em.2023.69.15

  Researchgate.net/publication/375801094_New_species_of_Kalimantanossus_from_Laos

[Arachnida • 2023] Leiurus nigellus • A New remarkable Species of Leiurus Ehrenberg, 1828 (Scorpiones: Buthidae) from Saudi Arabia

April 24, 2024, 1:42 am

≫ Next: [Botany • 2024] Vincetoxicum gongshanense (Apocynaceae: Asclepiadoideae) • A New Species from Yunnan, China

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Leiurus nigellus Abu Afifeh, Aloufi & Al-Saraireh,  in Afifeh, Aloufi, Al-Saraireh, Badry, Al-Qahtni et Amr, 2023. DOI: 10.37828/em.2023.69.9   Researchgate.net/publication/375743878

 Abstract

A new remarkable buthid scorpion, Leiurus nigellus sp. nov., was discovered in Al Ula Governorate, north of Al Madinah Al Monawwarah Province, Saudi Arabia. The new species is described, fully illustrated, and compared with other species of the genus Leiurus reported from the Arabian Peninsula. Notes on its habitats are provided.

Habitus of Leiurus nigellus sp. nov., male paratype and female holotype. A. male in dorsal view. B. male in ventral view. C. female in dorsal view. D. female in ventral view. Scale bar = 20 mm.

Leiurus nigellus sp. nov. Abu Afifeh, Aloufi & Al-Saraireh

Leiurus nigellus sp. nov., female paratype from Al Buriakah, Al Ula governorate, Saudi Arabia.

 

Bassam Abu Afifeh, Abdulhadi Aloufi, Mohammad Al-Saraireh, Ahmed Badry, Abdulmani H. Al-Qahtni and Zuhair S. Amr. 2023. A New remarkable Species of Leiurus Ehrenberg, 1828 from Saudi Arabia (Scorpiones: Buthidae). Ecologica Montenegrina. 69; 91-106. DOI: 10.37828/em.2023.69.9

  Researchgate.net/publication/375743878_A_new_species_of_Leiurus_from_SaudiArabia

[Botany • 2024] Vincetoxicum gongshanense (Apocynaceae: Asclepiadoideae) • A New Species from Yunnan, China

April 24, 2024, 2:16 am

≫ Next: [Funga • 2024] Leccinellum bothii, Phylloporus himalayanus, Porphyrellus uttarakhandae, etc. • Concordance of Multigene Genealogy along with Morphological Evidence unveils Five Novel Species and Two New Records of boletoid Mushrooms (Fungi) from India

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Vincetoxicum gongshanense Wen B. Xu & J. Y. Shen, in  Xu, Liu, Li, Yan et Shen, 2024.   taiwania.ntu.edu.tw/abstract/1991   facebook.com/TaiwaniaOffice Photos by Jian-Yong Shen & Wen-Bin Xu.

Abstract

Vincetoxicum gongshanense Wen B. Xu & J. Y. Shen (Apocynaceae), a new species from Gongshan County, Yunnan, China, is described and illustrated. It is similar to V. silvestre (Tsiang) Meve & Liede, V. kerrii (Craib) A. Kidyoo and V. biondioides (W. T. Wang) C. Y. Wu & D. Z. Li, but can be distinguished by the leathery leaves, five basal veins, ovate-triangular sepals, yellow corolla, lanceolate corolla lobes, wide triangular corona and reniform pollinia. Photographs, line drawing, distribution, comparison with related species, and a parallel conservation assessment are provided for this species.

Keyword: Apocynaceae, Vincetoxicum biondioides, Vincetoxicum kerrii, Vincetoxicum silvestre, Yunnan, China, Tylophora

Vincetoxicum gongshanense Wen B. Xu & J. Y. Shen. A. Flowering plant. B. Inflorescence in lateral view. C. Flower in ventral view. D. Gynostegium in lateral view. E. Sepals. F. Branchlets showing dense pubescence. G. Leaves showing adaxial (above) and abaxial (below) surface. H. Style-head in lateral view showing attached pollinarium I. Pollinarium. Photos by Jian-Yong Shen & Wen-Bin Xu.

Vincetoxicum gongshanense Wen B. Xu & J. Y. Shen. A. Section of trailing plant in habit. B. Flower in ventral view. C. Gynostegium in lateral view. D. Anther in ventral view. E. Anther and corona in lateral view. F. Leaves showing abaxial (right) and adaxial (left) surface. G. Styles and style-head in lateral view. H. Pollinia. I. Sepals in abaxial view. Drawn by Jing-Jing Yan.

Vincetoxicum gongshanense Wen B.Xu & J.Y.Shen, sp. nov. 

貢山娃兒藤 

Diagnosis: Vincetoxicum gongshanense is morphologically similar to V. silvestre, V. kerrii and V. biondioides by the habit of vines and linear lanceolate leaves, but can be distinguished by the leathery leaves, five basal veins, ovate-triangular sepals, yellow corolla, lanceolate corolla lobes, wide triangular corona and reniform pollinia. (Table 1)

...

Etymology: The epithet “gongshanense” is derived from the type locality Gongshan County, Yunnan, China.  

Wen-Bin Xu, Yan-Ling Liu, Xin-Wei Li, Jing-Jing Yan and Jian-Yong Shen. 2024. Vincetoxicum gongshanense (Apocynaceae), A New Species from Yunnan, China. Taiwania. 69(2); 168-172.  taiwania.ntu.edu.tw/abstract/1991

  facebook.com/TaiwaniaOffice/posts/823003989850294

[Funga • 2024] Leccinellum bothii, Phylloporus himalayanus, Porphyrellus uttarakhandae, etc. • Concordance of Multigene Genealogy along with Morphological Evidence unveils Five Novel Species and Two New Records of boletoid Mushrooms (Fungi) from India

April 24, 2024, 3:21 am

≫ Next: [Entomology • 2024] Cryptophasa warouwi • A New endemic Clove Tree Pest of Cryptophasa Lewin (Lepidoptera: Xyloryctidae), from Sangihe Island, Sulawesi, Indonesia

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Phylloporus himalayanus K. Das, Sudeshna Datta & A. Ghosh, Phylloporus smithii K. Das, Sudeshna Datta, U. Singh & A. Ghosh  Leccinellum bothii K. Das, A. Ghosh, Sudeshna Datta, U. Singh & Vizzini,   Porphyrellus uttarakhandae K. Das, Sudeshna Datta & A. Ghosh,  Retiboletus pseudoater K. Das, A. Ghosh, Sudeshna Datta & Vizzini,  in Das, Ghosh, Datta, Singh, Chakraborty, Tudu et Vizzini, 2024 DOI: 10.1038/s41598-024-59781-2

 

Abstract

Agaricales, Russulales and Boletales are dominant orders among the wild mushrooms in Basidiomycota. Boletaceae, one of the major functional elements in terrestrial ecosystem and mostly represented by ectomycorrhizal symbionts of trees in Indian Himalaya and adjoining hills, are extraordinarily diverse and represented by numerous genera and species which are unexplored or poorly known. Therefore, their hidden diversity is yet to be revealed. Extensive macrofungal exploration by the authors to different parts of Himalaya and surroundings, followed by through morphological studies and multigene molecular phylogeny lead to the discovery of five new species of wild mushrooms: Leccinellum bothii sp. nov., Phylloporus himalayanus sp. nov., Phylloporus smithii sp. nov., Porphyrellus uttarakhandae sp. nov., and Retiboletus pseudoater sp. nov. Present communication deals with morphological details coupled with illustrations and phylogenetic inferences. Besides, Leccinellum sinoaurantiacum and Xerocomus rugosellus are also reported for the first time from this country.

Keywords: Agaricomycetes, Biodiversity, Boletaceae, Morphology, Multigene phylogeny, Novel species

Leccinoideae

Leccinellum bothii K. Das, A. Ghosh, Sudeshna Datta, U. Singh & Vizzini sp. nov.

Etymology Commemorating E.E. Both for his important contribution to the systematics of Boletaceae.

Xerocomoideae

Phylloporus himalayanus K. Das, Sudeshna Datta & A. Ghosh sp. nov. 

Phylloporus smithii K. Das, Sudeshna Datta, U. Singh & A. Ghosh sp. nov. 

Etymology Commemorating Alexander H. Smith for his significant contribution to the systematics of Boletaceae.

Boletoideae

Porphyrellus uttarakhandae K. Das, Sudeshna Datta & A. Ghosh sp. nov. 

Retiboletus pseudoater K. Das, A. Ghosh, Sudeshna Datta & Vizzini sp. nov. 

 Kanad Das, Aniket Ghosh, Sudeshna Datta, Upendra Singh, Dyutiparna Chakraborty, Debala Tudu and Alfredo Vizzini. 2024. Concordance of Multigene Genealogy along with Morphological Evidence unveils Five Novel Species and Two New Records of boletoid Mushrooms (Fungi) from India. Scientific Reports. 14: 9298. DOI: 10.1038/s41598-024-59781-2

[Entomology • 2024] Cryptophasa warouwi • A New endemic Clove Tree Pest of Cryptophasa Lewin (Lepidoptera: Xyloryctidae), from Sangihe Island, Sulawesi, Indonesia

April 24, 2024, 3:37 am

≫ Next: [Botany • 2024] Gynoxys revolutifolia (Asteraceae: Senecioneae) • A New Species from southern Ecuador

≪ Previous: [Funga • 2024] Leccinellum bothii, Phylloporus himalayanus, Porphyrellus uttarakhandae, etc. • Concordance of Multigene Genealogy along with Morphological Evidence unveils Five Novel Species and Two New Records of boletoid Mushrooms (Fungi) from India

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[C-D] Cryptophasa warouwi  Sutrisno & Watung, 2024 [A, B] Crytophasa watungi Sutrisno & Suwito, 2015 in Watung, Tairas, Kaligis, Darmawan, Suwito, Narakusumo, Encilia, Dwibadra, Dharmayanthi et Sutrisno, 2024.    DOI: 10.11646/zootaxa.5403.1.10

Abstract

A novel endemic pest of clove tree, Cryptophasa warouwi sp. nov., has been discovered on Sangihe Island. This new species can be distinguished from its closest relative species, C. watungi Sutrisno & Suwito, 2015 which is found in North Sulawesi, by its dark brown straw-coloured wings in both males and females. The most distinctive diagnostic characters of this new species are observed in its genitalia structure: a bent-downward uncus with a strongly sclerotized finger-shaped apex, a bent phallus gradually widened towards coecum, and a double, membranous corpus bursae branching off at mid-ductus corpus bursae of female genitalia. Additionally, DNA barcodes revealed this new species to be embedded among Australian Cryptophasa species despite having fasciculated male antennae that have been considered diagnostic of the genus Paralecta. This suggests that the male antennae may not be a reliable character for separating Cryptophasa from Paralecta. A more comprehensive study including all Cryptophasa and Paralecta will be required to elucidate the definition of each genus. Images depicting both adults and genitalia are provided for this newly recognized species.

 Lepidoptera, clove, description, genitalia, Syzygium, tunnels

A. Crytophasa watungi ♂, B. C. watungi 3f, C. C. warouwi sp. nov., ♂, D. C. warouwi ♀. ds= discal spot, blt= basal line of termen.

Cryptophasa warouwi Sutrisno & Watung, sp. nov.

Diagnosis. The male of C. warouwi sp. nov. is easily distinguished from the closest species, C. watungi , by the forewing dark brown streak along the entire costa, which is gradually paler towards CuP, being light brown from CuP towards dorsum, the dark brown spots on discal cell of forewing, predominantly dark brown and become paler from the cubito-anal (CuA 1 and CuA 2) area towards dorsum, and white on the discal cell of hindwing. The female has the forewing with a white ochreous ground color tinged with brown from costa to dorsum, more pronouncedly so toward the margin, with a dark brown spot at the discal cell, a margin with a prominent basal line of alternating white and dark brown dashes (Fig. 1C–D). A bent-down uncus (black arrow) with a strongly sclerotized, finger-shaped apex (black arrow) a slightly sclerotised, medially bent phallus (black arrow), and a double corpus bursae without signum black arrow) are the best diagnostic for the male and female genitalia of this species (Fig. 2C–D, 3B).

Etymology: The species name is dedicated to Dr. Ir. Jootje Warouw, a senior entomologist and retired professor in the Faculty of Agriculture, Sam Ratulangi University who conducted research on pest control in Sangihe and Talaud Islands.

Jackson F. Watung, Robert W. Tairas, James B. Kaligis, Darmawan Darmawan, Awit Suwito, Raden Pramesa Narakusumo, Encilia Encilia, Dhian Dwibadra, Anik Budhi Dharmayanthi and Hari Sutrisno. 2024. A New endemic Clove Tree Pest of Cryptophasa Lewin, from Sangihe Island, Indonesia (Lepidoptera: Xyloryctidae).  Zootaxa. 5403(1); 141-150. DOI: 10.11646/zootaxa.5403.1.10

[Botany • 2024] Gynoxys revolutifolia (Asteraceae: Senecioneae) • A New Species from southern Ecuador

April 24, 2024, 7:28 pm

≫ Next: [PaleoIchthyology • 2024] From Sabers to Spikes: A newfangled Reconstruction of the Ancient, Giant, sexually dimorphic Pacific Salmon, Oncorhynchus rastrosus (Salmoniformes: Salmoninae: Salmonini)

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Gynoxys revolutifolia R. Arias, Espinosa-Ortega & Revilla,  in Arias, Espinosa-Ortega, Revilla, Ansaloni et Tomasello, 2024. DOI: 10.11646/phytotaxa.644.3.4

 

Abstract

Gynoxys is a very diverse genus of Asteraceae with an Andean distribution from Venezuela to northern Argentina. It comprises about 130 species, 34 of which are recorded in Ecuador. In the present study, we describe Gynoxys revolutifolia, a new species occurring in Ecuador between Loja and Zamora-Chinchipe provinces. The new species is a shrub or treelet characterized by coriaceous leaves with a strongly revolute margin. After an accurate revision of the main Ecuadorian herbaria and field surveys, we provide a comprehensive comparison of G. revolutifolia with the species it was previously misidentified as. We also provide information concerning the chemical composition, distribution range and conservation status of the new species.

Keywords: Andes, Compositae, Loja, Taxonomy, Zamora-Chinchipe

Lankester Composite Dissection Plate of Gynoxys revolutifolia R. Arias, Espinosa-Ortega & Revilla A. Flowering branch. B. Leaf: abaxial surface (left), adaxial surface (right). C. Synflorescence. D. Capitulum, front view. E. Capitulum, cross-section. F. Calycle. G. Bracteoles: abaxial surface (left), adaxial surface (right). H. Outer phyllaries: abaxial surface (left), adaxial surface (right). I. Inner phyllaries: abaxial surface (left), adaxial surface (right). J. Ray floret (pappus removed). K. Ray floret style. L. Disc floret (pappus removed). M. Disc floret style. N. Anther. O. Achene (immature). P. Pappus bristles. Photos and preparation by N. Espinosa-Ortega based on the isotype (QCA249764).

Gynoxys revolutifolia. A. Habit, shrub in shrubby páramo, Cerro Toledo-Loja/Zamora Chinchipe border. (R. Ansaloni & N. Espinosa-Ortega 310). B. Habit, treelet in elfin forest, Yangana-Cerro Toledo road, Loja (R. Ansaloni & N. Espinosa-Ortega 311). Photos by N. Espinosa-Ortega

Gynoxys revolutifolia R. Arias, Espinosa-Ortega & Revilla, sp. nov. 

Diagnosis:—The new species differs from all other congeners by having coriaceous leaves with strongly revolute margins (giving it a concave shape) and conspicuous primary and secondary veins (8–12 pairs) on both leaf surfaces, simple and T-shaped trichomes covering the abaxial side of the leaves, involucre with 8 phyllaries with ferruginous unicellular trichomes, 4–5 ray florets with limbs 10–11 mm long and 8–9(–12) disc florets. 

Etymology:—The specific epithet of the new species refers to the strong revolute leaf margins.

Ruth Arias, Nelson Espinosa-Ortega, Italo Revilla, Raffaella Ansaloni and Salvatore Tomasello. 2024. Gynoxys revolutifolia (Senecioneae, Asteraceae): A New Species from southern Ecuador.  Phytotaxa. 644(3); 211-219. DOI: 10.11646/phytotaxa.644.3.4

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[PaleoIchthyology • 2024] From Sabers to Spikes: A newfangled Reconstruction of the Ancient, Giant, sexually dimorphic Pacific Salmon, Oncorhynchus rastrosus (Salmoniformes: Salmoninae: Salmonini)

April 24, 2024, 7:46 pm

≫ Next: [PaleoIchthyology • 2024] Exceptionally preserved Shark Fossils from Mexico elucidate the Long-standing Enigma of the Cretaceous Elasmobranch Ptychodus (Lamniformes: Ptychodontidae)

≪ Previous: [Botany • 2024] Gynoxys revolutifolia (Asteraceae: Senecioneae) • A New Species from southern Ecuador

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Oncorhynchus rastrosus (Cavender & Miller, 1972)  in Claeson, Sidlauskas, Troll, Prescott et Davis, 2024. DOI: 10.1371/journal.pone.0300252

Abstract

The impressive †Oncorhynchus rastrosus of the Pacific Northwest’s Miocene and Pliocene eras was the largest salmonid ever to live. It sported a hypertrophied premaxilla with a pair of enlarged teeth which the original describers reconstructed as projecting ventrally into the mouth, leading them to assign the species to “Smilodonichthys,” a genus now in synonymy. Through CT reconstruction of the holotype and newly collected specimens, we demonstrate that the famed teeth projected laterally like tusks, not ventrally like sabers or fangs. We also expand the original description to characterize sexual dimorphism in mature, breeding individuals. Male and female †Oncorhynchus rastrosus differ in the form of the vomer, rostro-dermethmoid-supraethmoid, and dentary, much as do other extant species of Oncorhynchus. Male specimens possess a more elongate vomer than do females, and female vomers have concave ventral surfaces and prominent median dorsal keels. The dentary of females has no evidence of a kype, though some specimens of †O. rastrosus have a non-uniform density mesial to the tooth bed, which we interpret as a male kype. Unlike extant Oncorhynchus, male and female †O. rastrosus do not differ in premaxilla shape. Because male and females possess hypertrophied premaxillae and lateral premaxillary spikes, the former common name “Sabertoothed Salmon” no longer reflects our understanding of the species’ morphology. Accordingly, we redub †O. rastrosus the Spike-Toothed Salmon and postulate that its spikes were multifunctional, serving as defense against predators, in agonism against conspecifics, and as a practical aid to nest construction.

Oncorhynchus rastrosus. (A) CT model of Holotype, UO F-26799, skull in right lateral view with a stylized drawing of the originally proposed “sabertoothed” position of the isolated premaxilla; (B) UO_A in anterior view of skull, prior to complete preparation and CT scan; (C) Artist’s rendering skull of male iconic fish with accurate spike-tooth configuration; (D) Artist’s rendering of complete female iconic fish with accurate spike-tooth configuration. Scale bar blocks = 1 cm each.

Conclusion: 

Extant Pacific salmon are sexually dimorphic, anadromous fishes navigating complex terrains to successfully breed. They undergo impressive physiological and morphological transformations prior to and during migration inland to spawn. †Oncorhynchus rastrosus was no exception, despite its huge size and unusual filter feeding ecology. The newly recovered specimens from the Gateway Locality of Oregon represent mature individuals with subtle dimorphism in the vomer, rostro-dermethmoid-supraethmoid, and dentary. Male specimens possess a more elongate vomer than do females and do not have a dorsal keel as in females. The female dentary has no evidence of a kype and possesses two mesial teeth. Male specimens of †O. rastrosus have a non-uniform density deep to the tooth bed and edentulous portion of the dentary, which we interpret as evidence of a kype. Finally, the rds is blunt in females and pointed in males. Unlike extant Oncorhynchus, male and female specimens of †O. rastrosus do not differ in premaxilla shape and both sexes possess prominent, laterally-directed premaxillary teeth. These spikes on the hypertrophied premaxilla could have defended against predators, enhanced agonism against conspecific individuals, and/or aided nest construction.

 Kerin M. Claeson, Brian L. Sidlauskas, Ray Troll, Zabrina M. Prescott and Edward B. Davis. 2024. From Sabers to Spikes: A newfangled Reconstruction of the Ancient, Giant, sexually dimorphic Pacific Salmon, †Oncorhynchus rastrosus (SALMONINAE: SALMONINI). PLoS ONE. 19(4): e0300252. DOI: 10.1371/journal.pone.0300252

[PaleoIchthyology • 2024] Exceptionally preserved Shark Fossils from Mexico elucidate the Long-standing Enigma of the Cretaceous Elasmobranch Ptychodus (Lamniformes: Ptychodontidae)

April 24, 2024, 8:26 pm

≫ Next: [Botany • 2024] Ixeridium malingheense (Asteraceae: Cichorieae) • A New Species from southwestern Guizhou, China

≪ Previous: [PaleoIchthyology • 2024] From Sabers to Spikes: A newfangled Reconstruction of the Ancient, Giant, sexually dimorphic Pacific Salmon, Oncorhynchus rastrosus (Salmoniformes: Salmoninae: Salmonini)

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Ptychodus Agassiz, 1834 in Vullo, Villalobos-Segura, Amadori, Kriwet, Frey, González, Gutiérrez, Ifrim, Stinnesbeck et Stinnesbeck, 2024. DOI: 10.1098/rspb.2024.0262

 

Abstract

The fossil fish Ptychodus Agassiz, 1834, characterized by a highly distinctive grinding dentition and an estimated gigantic body size (up to around 10 m), has remained one of the most enigmatic extinct elasmobranchs (i.e. sharks, skates and rays) for nearly two centuries. This widespread Cretaceous taxon is common in Albian to Campanian deposits from almost all continents. However, specimens mostly consist of isolated teeth or more or less complete dentitions, whereas cranial and post-cranial skeletal elements are very rare. Here we describe newly discovered material from the early Late Cretaceous of Mexico, including complete articulated specimens with preserved body outline, which reveals crucial information on the anatomy and systematic position of Ptychodus. Our phylogenetic and ecomorphological analyses indicate that ptychodontids were high-speed (tachypelagic) durophagous lamniforms (mackerel sharks), which occupied a specialized predatory niche previously unknown in fossil and extant elasmobranchs. Our results support the view that lamniforms were ecomorphologically highly diverse and represented the dominant group of sharks in Cretaceous marine ecosystems. Ptychodus may have fed predominantly on nektonic hard-shelled prey items such as ammonites and sea turtles rather than on benthic invertebrates, and its extinction during the Campanian, well before the end-Cretaceous crisis, might have been related to competition with emerging blunt-toothed globidensine and prognathodontine mosasaurs.

Keywords: Chondrichthyes, Lamniformes, Ptychodontidae, ecomorphology, Late Cretaceous, Vallecillo fossil Lagerstätte

Romain Vullo, Eduardo Villalobos-Segura, Manuel Amadori, Jürgen Kriwet, Eberhard Frey, Margarito A. González González, José M. Padilla Gutiérrez, Christina Ifrim, Eva S. Stinnesbeck and Wolfgang Stinnesbeck. 2024. Exceptionally preserved Shark Fossils from Mexico elucidate the Long-standing Enigma of the Cretaceous Elasmobranch Ptychodus.  Proc. R. Soc. B. 291: 20240262. DOI: 10.1098/rspb.2024.0262

 

[Botany • 2024] Ixeridium malingheense (Asteraceae: Cichorieae) • A New Species from southwestern Guizhou, China

April 25, 2024, 2:38 am

≪ Previous: [PaleoIchthyology • 2024] Exceptionally preserved Shark Fossils from Mexico elucidate the Long-standing Enigma of the Cretaceous Elasmobranch Ptychodus (Lamniformes: Ptychodontidae)

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Ixeridium malingheense Z.Li & Q.Xu,  in Xu, Yang, An, Yu, Liu et Li, 2024.  DOI: 10.11646/phytotaxa.645.2.5

 

Abstract

A new Asteraceae species, Ixeridium malingheense Z.Li & Q.Xu sp. nov., from Xingyi City, south-western Guizhou, China, is described and illustrated based on morphological and molecular analyses. Compared with the other species of the genus, the species is most similar to I. yunnanense in a small stature, linear-lanceolate stem leaves, and short phyllaries. However, it is easily distinguished from the latter by its smaller basal leaves 18–34 × 5–13 mm (vs. 10–25 × 5 mm), spatulate or long-spatulate (vs. elliptic, lanceolate, or oblanceolate), petioles ca. 30–55 mm (vs. 10 mm to absent), outer phyllaries 1-seriate (vs. 2-seriate, unequal), achenes smaller 2.0–3.0 × 0.5–1.0 mm (vs. 3.2 × 0.6 mm), and a flowering period of March to May (vs. June). Molecular phylogenetic analyses based on nuclear ITS sequence data determined the systematic position of I. malingheense in Ixeridium.

Asteraceae, Eudicots, Ixeridium, morphology, phylogeny, taxonomy 

 Ixeridium malingheense Z.Li & Q.Xu sp. nov.

Qin Xu, Long Yang, MingTai An, JiangHong Yu, Feng Liu and Zhi Li. 2024. Ixeridium malingheense (Asteraceae), A New Species from southwestern Guizhou, China.  Phytotaxa. 645(2); 163-171. DOI: 10.11646/phytotaxa.645.2.5