Species New to Science

Nitidotellina hachiensis

Fukuda, Ishikawa, Ito & Haga, 2022

DOI: 10.1080/13235818.2022.2068112

ABSTRACT

A new species of tellinid, Nitidotellina hachiensis, is described from Japan. The shell of this species is characterised by a pair of strong keels that run from the beaks to the posterior end and forms a prominent posterior notch. The recent individuals are found only in the Seto Inland Sea (Okayama, Hiroshima, Yamaguchi and Ehime prefectures), while the one fossil record so far known is from the Chibanian (middle Pleistocene) Toyohashi Formation in Aichi Prefecture, central Honshū. Living individuals are uncommon and mainly found living in sandy mud bottoms from the low tide line down to the subtidal zone in the inner parts of large bays. It can be regarded as endangered due to the recent habitat loss and water pollution of inner bay environments.

KEYWORDS: Bivalves, Chibanian, conservation, description, endangered species, Hachi-no-higata, inner bay, new species, taxonomy, tidal flats

Nitidotellina hachiensis n. sp.

Hiroshi Fukuda, Hiroshi Ishikawa, Soma Ito and Takuma Haga. 2022. Nitidotellina hachiensis n. sp. (Bivalvia: Tellinidae) from the Seto Inland Sea, between Honshū and Shikoku, western Japan. Molluscan Research. DOI: 10.1080/13235818.2022.2068112

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JAPANESE ABSTRACT 和文摘要

福田　宏・石川　裕・伊藤颯真・芳賀拓真: 瀬戸内海産ニッコウガイ科 (二枚貝綱) の新種 Nitidotellina hachiensis ハチザクラ.

新種 Nitidotellina hachiensis ハチザクラを記載する。この種は殻表の後背部に走る一対の稜角や後端が明瞭に凹む点が著しい特徴で, これらは同属の他種では類例が知られていない。本種の現生個体は瀬戸内海 (岡山・広島・山口・愛媛各県) のみで得られ, 更新統千葉階豊橋層の化石が愛知県でのみ報告されている。生貝は主に干潮線から潮下帯にかけての砂泥底から見出されるが, 寡産である。産出は大規模な湾奥に限られ, 近年の内湾の水質汚濁などを原因とする棲息環境の喪失により, 絶滅が危惧される稀少種と見做しうる。

ZooBank registration: zoobank.org/urn:lsid:zoobank.org:pub:98F5D4CD-C585-4AF3-BEB8-83731349DF04

Tatia luisae

Ribeiro, Silva-Oliveira, Silva & Canto, 2022

ni.bio.br/1982-0224-2021-0164

Abstract

A new species of Tatia is described from rio Tapajós, upstream of the rapids of São Luiz do Tapajós, Pará State, Brazil. The new species is identified and diagnosed from its congeners through morphological characteristics such as the absence of an adipose fin, which is shared with T. akroa and T. britskii; the composition of the cranial roof elements; the color pattern consisting of dorsolateral dark dots formed by both dermal and epidermal pigments; as well as several morphometric measures. The new species is a Centromochlinae fish that feeds on insects on the surface of the water at night and it is probably endemic to rio Tapajós basin.

Keywords: Amazonia, Biodiversity, Centromochlinae, Freshwater fishes, Taxonomy.

Live specimen of Tatia luisae, UFOPA-I 1361, 25.3 mm SL, paratype.

Tatia luisae, new species

Diagnosis. Tatia luisae differs from all species ofTatia and Centromochlus, except T. akroa Souza, Sarmento-Soares, Canto & Ribeiro, 2020 and T. britskii Sarmento-Soares & Birindelli, 2015, by the absence (vs. present) of adipose fin. Tatia luisae differs from T. akroa by the dorsal-fin spine length (16.4–24.3% SL, mean 19.6 vs. 12.3–17.3% SL, mean, 14.7), head depth (56.4–71.9% HL, mean 66.3 vs. 40.6–57.6% HL, mean 47.2), interorbital distance (34.7–45.0% HL, mean 4.0 vs. 46.1–57.9% HL, mean 50.2), and posterior internarial distance (22.1–30.2% HL, mean 25.7 vs. 30.0–38.2% HL, mean 33.3). Tatia luisae differs from T. britskii by the body depth (17.8–24.6% SL, mean 22.6 vs. 14.6–17.1% SL, mean 16.2), dorsal-fin spine length (16.3–24.3% SL, mean 19.7 vs. 13.3–15.6% SL, mean 14.3), head depth (56.4–71.9% HL, mean 66.3 vs. 46.3–52.7% HL, mean 49.5), anterior internarial distance (14.6–24.2% HL, mean 21.9 vs. 29.2–33.0% HL, mean 31.2), and posterior internarial distance (22.1–30.2% HL, mean 25.7 vs. 31.5–34.7% HL, mean 33.5). Tatia luisae further differs from T. aulopygia (Kner, 1857), T. altae (Fowler, 1945), T. brunnea, T. caudosignata DoNascimiento, Albornoz-Garzón & García-Melo, 2019, T. dunni (Fowler, 1945), T. ferrarisi (Birindelli, Sarmento-Soares & Lima, 2015), T. galaxias Mees, 1974, T. gyrina (Eigenmann & Allen, 1942), T. intermedia, T. jacaratia Pavanelli & Bifi, 2009, T. meesi Sarmento-Soares & Martins Pinheiro, 2008, T. meridionalis, T. neivai (Ihering, 1930), T. perugiae (Steindachner, 1882), T. punctata Mees, 1974, T. reticulata Mees, 1974 and T. strigata Soares-Porto, 1995 by dotted color pattern on sides of body (vs. mottled, spotted or reticulated on flanks). Differs from T. aulopygia, T. boemia Koch & Reis, 1996, T. brunnea, T. caxiuanensis Sarmento-Soares & Martins-Pinheiro, 2008, T. caudosignata, T. dunni, T. galaxias, T. gyrina, T. intermedia, T. jaracatia, T. meesi, T. neivai, T. nigra, and T. strigata by the absence (vs. presence) of anterior nuchal plate.

Geographical distribution. Tatia luisae is currently known only from the middle rio Tapajós, upstream of the rapids of São Luiz do Tapajós, at Itaituba Municipality (Fig. 6).

Etymology. The specific epithet luisae is in honor to the Brazilian ichthyologist Luisa M. Sarmento-Soares, in recognition of her many contributions to the systematics of Neotropical catfishes of the subfamily Centromochlinae. A noun in the singular genitive case.

Frank Raynner V. Ribeiro, Cárlison Silva-Oliveira, Alberto Conceição F. da Silva and André L. Colares Canto. 2022. New Species of Driftwood Catfish of Tatia (Siluriformes: Auchenipteridae) from rio Tapajós, Brazil. Neotrop Ichthyol. 20(2):e210164. ni.bio.br/1982-0224-2021-0164

DOI: 10.1590/1982-0224-2021-0164

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Indigofera vallicola Huan C. Wang & Jin L. Liu,

in Liu, Li, Yang & Wang, 2022.

DOI: 10.3897/phytokeys.199.85437

Abstract

Indigofera vallicola (Fabaceae), a new species is described and illustrated. This plant is only found from two localities in the central Yunnan Province, southwest China. It is characterized by having the prostrate habit, usually 13–17-foliolate leaves and the relatively small (3–5 mm long) flowers. Morphological comparisons with its closest relatives, I. rigioclada, I. franchetii, I. chaetodonta, and I. henryi are also presented.

Keywords: Dry-hot valley, endemism, Indigofera rigioclada, Leguminosae, prostrate shrub

Indigofera vallicola Huan C. Wang & Jin L. Liu sp. nov.
A habit B standard C wing D keel E calyx F anther G flower H leaflet I legume.

(Drawn by Jin-Li Liu)

Indigofera vallicola Huan C. Wang & Jin L. Liu sp. nov.
A habit B a portion of branchlet showing abaxial surfaces of leaflets C plants in fruiting stage D stipules E a portion of inflorescens F calyces G legume.

Scale bars: 10 cm (A); 4 cm (C); 1 cm (B, G); 4 mm (E); 3 mm (F); 1 mm (D).

 Indigofera vallicola Huan C. Wang & Jin L. Liu, sp. nov.

Diagnosis: Indigofera vallicola is most similar to I. rigioclada Craib by sharing the procumbent habit, relatively small leaves and the similar flower shape, but it clearly differs from the latter by its usually 13–17-foliolate, flowers 3–5 mm long, calyx teeth triangular-lanceolate, and legumes 1–2 mm in diameter.

Etymology: The specific epithet is taken from the Latin “vallis” (valley) and the suffix “-cola” (dweller), referring to the habitat where the new species is found.

Jin-Li Liu, Shi-Gang Li, Feng Yang and Huan-Chong Wang. 2022. Indigofera vallicola (Fabaceae), A New Species from Yunnan, southwest China. PhytoKeys. 199: 9-16. DOI: 10.3897/phytokeys.199.85437

 Primula longipilosa Ze H. Wang & H. Peng, sp. nov.

in Wang, Wang, Chen, ... et Guo. 2022.

长毛报春 || DOI: 10.3897/phytokeys.194.81335

Abstract

Primula longipilosa from SW Yunnan, China, is described as a species new to science and illustrated. The systematic placement of this new species is also discussed based on an nrITS molecular tree. It is morphologically most similar to P. mollis, but differs from the latter in its racemose inflorescence, green calyx tube, pink to pink rose corolla, stamens at 1/3 length above the base of the corolla tube and applanate globose capsule.

Keywords: Morphological characteristics, nrITS, phylogenetic analysis, Primulamollis

 Primula longipilosa Ze H. Wang & H. Peng, sp. nov.

A habit B–C pin flowers D–E thrum flowers F capsule with dissected calyx.

Drew by Dr. Yuan Luo.

 Primula longipilosa Ze H. Wang & H. Peng, sp. nov.
A habit B upper face of leaves C lower face of leaves D hairs on the petiole E racemose inflorescence F–G thrum flowers H pin flower I front side of corolla J calyx in late-flowering K capsule with dissected calyx.

Photographed by Li Chen.

 Primula longipilosa Ze H. Wang & H. Peng, sp. nov.

Diagnosis: Primula longipilosa is most similar to P. mollis in the long soft multicellular hairs all over the plant, the shape of their leaves and corolla. But it differs from the latter mainly in its racemose inflorescence, green calyx tube, pink to pink rose corolla, stamens of the pin flowers at 1/3 length above the base of corolla tube, and applanate globose capsule. The main morphological differences between P.longipilosa and P. mollis are summarized in Table 1.

Distribution and habitat: Primula longipilosa is currently encountered and seen growing on the moist mountain slopes along the valley forest margin near the new Aiguo Village, Gengma County, Yunnan Province, China.

Etymology: The specific epithet refers to the impressive long spreading white soft multicellular hairs on the whole plant.

Vernacular name: Simplified Chinese: 长毛报春; Chinese Pinyin: Chángmáo Bàochūn.

Ze-Huan Wang, Yi Wang, Li Chen, Hua Peng, Zhi-Kun Wu and Guang Guo. 2022. Primula longipilosa (Primulaceae), A New Species from Yunnan, China. PhytoKeys. 194: 15-22. DOI: 10.3897/phytokeys.194.81335

Oberonia mahaeliyensis C. Bandara, Lakkana & Ediriweera,

in Bandara, Lakkana & Ediriweera, 2022.

DOI: 10.11646/phytotaxa.549.1.8

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Abstract

Oberonia mahaeliyensis C. Bandara, Lakkana, Ediriweera sp. nov. is described and illustrated in montane cloud forests of Sri Lanka. Complete taxonomic description, color photographs and line drawings of the species are provided in this account.

Keywords: Conservation, Ecology, Fairy orchid, Forest Die-back, Mahaeliya-thenna, Monocots

Oberonia mahaeliyensis C. Bandara, Lakkana, Ediriweera sp. nov.

Champika Bandara, Tithira Lakkana and Sisira Ediriweera. 2022. Oberonia mahaeliyensis (Orchidaceae: Epidendroideae: Malaxideae), A New Species from Montane Cloud Forest of Sri Lanka. Phytotaxa. 549(1); 97-103. DOI: 10.11646/phytotaxa.549.1.8

ශ්‍රී ලංකාවට ආවේණික නව ඕකිඩ් විශේෂයක්

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Leptobrachella shimentaina J. Wang, Z.-T. Lyu & Y.-Y. Wang,

in Wang, Qi, Dai, Lyu, ... et Wang, 2022.

DOI: 10.3897/zse.98.73162

Abstract

A new species of Leaf Litter Toad, Leptobrachella shimentaina sp. nov., is described from the Shimentai and Luokeng nature reserves of northern Guangdong Province, southern China. The new taxon can be distinguished from all recognized congeners by a combination of discrete morphological character state differences relating to its small body size (SVL 26.4–28.9 mm in six adult males, 30.1 and 30.7 mm in two adult females); a number of apparently fixed color pattern character differences (including eye coloration and color pattern features from dorsal, ventral, and dorsolateral surfaces of its head, body, limbs, and ventrum); the morphological and discrete characteristics of the external phenotype (the skin texture of dorsum and ventrum, the presence of supra-axillary and ventrolateral glands, the wide dermal fringes and rudimentary webbing on toes, and the uninterrupted longitudinal ridges under toes). Two samples of this new species previously were proposed as representing a new, unnamed species. We now substantiate this claim by providing diagnostic comparisons of discrete character differences. In addition, we also discuss taxonomic uncertainty surrounding the identity of two congeners, L. chishuiensis and L. purpurus, which we interpret as indicative of taxonomic inflation in the species-rich subfamily Megophryidae.

Key Words: Leptobrachella shimentaina sp. nov., L. chishuiensis, L. purpurus, morphology, taxonomy

Morphological features of the holotype of Leptobrachella shimentaina sp. nov., SYS a007684 in life:

A. Dorsal view; B. Dorsolateral view; C. Ventral view; D. Character of eye and temporal region; E. Ventral view of hand; F. Ventral view of foot.

Morphological features of a paraype (SYS a007687) of Leptobrachella shimentaina sp. nov. in life.

Morphological features of the paratypes of Leptobrachella shimentaina sp. nov.:
A1. A female (SYS a004711 in situ; ventral view of the same specimen’s hand [A2] and foot [A3];
B. Male SYS a007685 in situ; C. Male SYS a007686 in situ.

 Leptobrachella shimentaina J. Wang, Z.-T. Lyu & Y.-Y. Wang, sp. nov.

Shimentai Leaf Litter Toad (in English)

Shi Men Tai Zhang Tu Chan (石门台掌突蟾in Chinese)

Chresonymy: “Leptolalax sp.6” (Chen et al. 2018).

Diagnosis: (1) small body size [SVL 26.4–28.9 mm in six adult males, SVL 30.1 and 30.7 mm in two adult females], (2) iris bicolored, upper half coppery orange and lower half silver, (3) tympanum distinct, (4) supratympanic line black, (5) fingers unwebbed, with distinct lateral fringes in males [absence in females], (6) toes with rudimentary webbing, lateral fringes wide in males [narrow in females], (7) longitudinal ridges under toes continuous, with constrictions at interphalangeal articulations, (8) heels slightly overlapping when adpressed, tibial-tarsal articulation reaching mid-orbit, (9) relative lengths of fingers I = II = IV < III, and toe I < II < III = V < IV, (10) dorsal surface shagreened and granular, lacking enlarged warts, with some granules forming short longitudinal folds, (11) dorsum grayish brown to yellowish brown, with small light orange granules and distinct darker brown scattered markings with irregular light orange pigmentation, (12) flanks with several dark spots, (13) ventral surface grayish pink, with distinct hazy brown speckling on chest and ventrolateral flanks, (14) densely-distributed, small, raised pectoral and abdominal tubercles present; (15) dorsal surfaces of forelimbs and digits with dark transverse bars.

Etymology: The specific epithet “shimentaina” is an adjective derived from “shimentai”, referring to the type locality of the new species, Shimentai Nature Reserve, “ina” is used as a feminine suffix which indicates the relationship of position.

Jian Wang, Shuo Qi, Ke-Yuan Dai, Zhi-Tong Lyu, Zhao-Chi Zeng, Hong-Hui Chen, Yuan-Qiu Li, Yong-You Zhao, Yun-Ze Wang and Ying-Yong Wang. 2022. A New Leptobrachella Species (Anura, Megophryidae) from South China, with Comments on the Taxonomic Status of L. chishuiensis and L. purpurus. Zoosystematics and Evolution. 98(1): 165-180. DOI: 10.3897/zse.98.73162

Bronchocela jubata Duméril and Bibron, 1837

in Amarasinghe, Ineich, Riyanto, ... et Supriatna, 2022.

DOI: 10.11646/zootaxa.5150.1.3

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Abstract

Bronchocela jubata Duméril and Bibron, 1837 is one of the commonest species of the genus, known mostly from Java Island and southern parts of Sumatra. It is rare in Bali and Borneo. The juveniles are often confused with its morphologically similar congener, B. cristatella, which occurs widely throughout the Indonesian Archipelago and Peninsular Malaysia. We examined the morphology of B. jubata based on museum specimens including its two available syntypes, and redescribed the species based on the lectotype designated herein. We highlight the characters of B. jubata with a morphometric comparison to its sympatric congener B. cristatella from Java Island, Indonesia. Based on the current distribution pattern and the apparent threats, we update the conservation status of B. jubata using IUCN Red List Criteria, and propose that it be considered as a species of Least Concern (LC), endemic to the Greater Sundaic Islands.

Keywords: Reptilia, Conservation, endemic, Indonesia, lectotype, morphometric, Java, taxonomy.

Bronchocela jubata Duméril & Bibron, 1837

A.A. Thasun Amarasinghe, Ivan Ineich, Awal Riyanto, Jakob Hallermann, Noviar Andayani, A. Abinawanto and Jatna Supriatna. 2022. Taxonomy and distribution of a common arboreal lizard, Bronchocela jubata Duméril & Bibron, 1837 (Reptilia: Agamidae), with designation of its lectotype from Java, Indonesia. Zootaxa. 5150(1); 65-82. DOI: 10.11646/zootaxa.5150.1.3

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Polyneura guoliangi

Wang & Liu, 2022

郭亮网翅蝉 || DOI: 10.3897/BDJ.10.e84554

Abstract

Background:

The tribe Polyneurini Amyot & Audinet-Serville, 1843 (Hemiptera: Cicadidae: Cicadinae) is a small tribe which includes four genera and 18 species, distributing in eastern Palaearctic and Oriental Regions. Most of them, four genera and 16 species, are known from China.

New information:

A remarkable new species of cicada, Polyneura guoliangi sp. n. (Hemiptera, Cicadidae, Cicadinae), is described and illustrated from Yunnan, southwest China. The diagnostic characters of the new species are compared with allied species or genera.

Keywords: Cicada, Polyneurini, Polyneurina, taxonomy, morphology, new species, Oriental Region

Polyneura guoliangi sp. n., holotype, male:
A habitus, dorsal view; B habitus, ventral view; C fore femur, lateral view.

Abbreviations: a1, 10, 26: apical cells 1, 10, 26; asp: subapical spine; psp: primary spine; ssp: secondary spine. Scale bar 1 for A and B; 2 for C.

Living Polyneura guoliangi sp. n. (holotype, male) at Xiaoheishan Nature Reserve (Yunnan, China).
A caught by the collector Liang Guo; B dorsal view; C dorsolateral view.

Polyneura guoliangi Wang & Liu, sp. n.

Etymology: The new species is dedicated to the collector of the type specimen, Mr. Liang Guo (Fuzhou, China), an enthusiastic amateur entomologist. The name is a noun in the genitive case. The Chinese name “郭亮网翅蝉” is proposed for the Chinese common name of this new species.

Cheng-Bin Wang and Peng-Yu Liu. 2022. A New Species of Polyneura Westwood, 1842 from Yunnan, China (Hemiptera, Cicadidae, Cicadinae). Biodiversity Data Journal. 10: e84554. DOI: 10.3897/BDJ.10.e84554

Stumpffia lynnae

Mullin, Rakotomanga, Dawson, Glaw, Rakotoarison, Orozco-terWengel & Scherz, 2022

DOI: 10.3897/zookeys.1104.82396

Abstract

The Madagascan endemic subfamily Cophylinae in the family Microhylidae, is an example of a taxonomic group for which much is still to be discovered. Indeed, the cophyline frogs present a large portion of Madagascar’s cryptic and microendemic amphibian diversity, yet they remain understudied. A new red-bellied species of the microhylid frog genus Stumpffia is described from the central plateau of Madagascar. Visual encounter surveys in Ambohitantely and Anjozorobe in 2019 and 2020 identified this previously unknown Stumpffia species, which closely resembles Stumpffia kibomena known from Andasibe in the east. Stumpffia lynnae sp. nov. adds another species to the red-bellied species complex, differing from S. kibomena by genetic differentiation in the mitochondrial 16S rRNA gene (3.6–3.9%) and distinct nuclear RAG1 haplotypes, as well as strongly by its advertisement call. The new species is known from across Ambohitantely Special Reserve and Anjozorobe Angavo protected area, but is known only from one complete specimen and eight individual tissue samples. Based on the rarity of the species, the small number of locations in which it has been found, and its disappearing forest habitat, its IUCN Red List classification is suggested as “Endangered”. This species is the first Stumpffia described from Madagascar’s central plateau, highlighting the importance of conserving the remnant forest fragments in this area and the ongoing need to survey and protect this threatened habitat type.

Keywords: Amphibian, cophyline, DNA barcoding, phylogeny, taxonomy

Stumpffia lynnae sp. nov.
the holotype ZSM 1/2022 (KAMU2) from Ambohitantely Special Reserve in life
A, B dorsal lateral view C ventral view D dorsal view.

Images of the additional observed specimens of Stumpffia lynnae sp. nov. including the calling male (KAMUS371).

 Stumpffia lynnae sp. nov.

Diagnosis: The new species is assigned to the genus Stumpffia based on its morphological and genetic affinities. Within the genus, it is distinguished by the unique combination of the following characters: (1) SVL 15.5–22.2 mm (adults in life), (2) limited digital reduction on the hands and feet such that first finger is reduced; other fingers not reduced and first toe is slightly reduced; other toes not reduced, (3) bright red to orange colouration confined to the ventral surfaces of the legs, posterior abdomen, and ventral arms, (4) absence of red markings on the lower jaw, and advertisement call with (5) inter-call intervals of 3498–5581 ms, (6) call/note duration 163–184 ms, (7) dominant frequency 2027–2044 Hz, and (8) distinct genetic divergence in the mitochondrial and nuclear genome to other known species.

....

Etymology: This species name is a matronym honouring Lynne Mullin, to whom we are pleased to dedicate this attractively colourful species in recognition of the unconditional support she has provided to the first author. The origin of Lynn/e is from Celtic language, with the meaning waterfall, pond, and lake. Given the popular waterfall in the centre of Ambohitantely Special Reserve where this species was first found, this name seems appropriate. The name has further relevance to this beautiful red-bellied frog with the Spanish meaning of the feminine name ‘pretty’. The species epithet is defined as a genitive noun with the ‘e’ removed for easier pronunciation.

Distribution: While just eight individuals were recorded, the six at Ambohitantely were distributed across four fragments (three in addition to the core forest block) including a very small (3.5 ha) fragment at the southern end of the reserve (Fig. 1). This suggests that they are widely distributed across the protected area. Surveys in the two forest fragments at Ankafobe did not detect the species, but this is not surprising given the size of the fragments and the reduced diversity at Ankafobe compared to Ambohitantely (Mullin et al. 2021). However, it cannot be ruled out that this species may exist in relict forest fragments in the area surrounding Ambohitantely Special Reserve, and between Ambohitantely and Anjozorobe. This species’ elevational range (1432–1586 m) is greater than S. kibomena’s range at Andasibe (900–950 m).

Katherine E. Mullin, Manoa G. Rakotomanga, Jeff Dawson, Frank Glaw, Andolalao Rakotoarison, Pablo Orozco-terWengel and Mark D. Scherz. 2022. An unexpected New Red-bellied Stumpffia (Microhylidae) from forest fragments in central Madagascar highlights remaining Cryptic Diversity. ZooKeys. 1104: 1-28. DOI: 10.3897/zookeys.1104.82396

Ctenotus kutjupa

Prates, Hutchinson, Huey, Hillyer & Rabosky, 2022

DOI: 10.18061/bssb.v1i2.8720

Pictures by Ryan Ellis & John Harris.

Abstract

Australia harbors the most diverse lizard assemblages on Earth, yet the biodiversity of its vast arid zone remains incompletely characterized. Recent sampling of remote regions has revealed new species with unique phenotypes and unclear evolutionary affinities. Here, we describe a new species of scincid lizard that appears to be widely distributed across the Great Victoria Desert and adjacent regions. The new species was previously overlooked among specimens of the wide-ranging desert taxon Ctenotus schomburgkii but is distinguished from it by coloration and scalation characters. Phylogenetic analyses based on mitochondrial and genome-wide nuclear loci confirmed that the new species is highly divergent from C. schomburgkii, with which it appears to be sympatric across much of its range. In addition to the new species, our survey of genetic variation within C. schomburgkii as currently recognized revealed three additional lineages that approach one another in southern and northwestern Australia, and which may also represent distinct species. These results suggest that our knowledge of the extraordinary biodiversity of arid Australia remains incomplete, with implications for the conservation and management of this unique fauna. The targeted collection of voucher specimens in undersampled regions, coupled with population genetic screening of lineage diversity, will be crucial for characterizing species boundaries and understanding the composition of Australia’s vertebrate communities.

Keywords: cryptic species, population genetics, phylogeography, arid zone, Ctenotus schomburgkii

Coloration in life.
a) Paratype of Ctenotus kutjupa sp. nov. (WAM R175023) from around Beyondie Lakes, Western Australia (WA). Picture by Ryan Ellis. b) C. kutjupa from the Tjirrkarli Aboriginal Lands, Gibson Desert, WA. Picture by John Harris.

c) Ctenotus schomburgkii from Goongarrie National Park, WA. Picture by Daniel L. Rabosky. d) Ctenotus schomburgkii from Gluepot, South Australia. Picture by Kym Nicolson.

e) Schematic representation of dorsal color pattern in C. kutjupaand C. schomburgkii in localities where they co-occur (see text). Note the continuous dark line down the middle of the scale row 1 inC. kutjupa(arrows).

Ctenotus kutjupa sp. nov. Hutchinson, Prates & Rabosky

Diagnosis: A small species of Ctenotus characterized by the unique combination of sharp-edged and spinose subdigital lamellae, a pre-subocular scale between the lower preocular and the subocular supralabial, and prefrontal and nasal head shields usually in medial contact (Fig. 3b). The color pattern typically includes seven narrow dark dorsal stripes, including a vertebral stripe that becomes more prominent on the (unbroken) tail and runs almost the full length of the tail in most individuals (Fig. 3a). The new species is further characterized by the combination of a dark upper lateral zone with a single series of large pale spots with an ascending series of black and whitish blotches that curve dorsally behind the eye (Fig. 4a–b, e).

Ctenotus kutjupa sp. nov. distribution and habitat.
a) Localities where C. kutjupa is presently known to occur. Distribution of deserts and xeric shrublands (i.e., the arid zone’s driest portion) as per Olson et al. (2001).
b) Habitat east of the Pungkulpirri Waterhole, Western Australia (WA), collection site of holotype WAM R166437. Picture by Helen Vonow.
c) Habitat in the vicinity of the Beyondie Lakes, WA, collection site of C. kutjupa paratype WAM R175023. Picture by Ryan Ellis.

Etymology: The word kutjupa, meaning “the other one” or “another one” in its noun form, makes reference to the discovery of the new species among collections of C. schomburgkii. We use this word, shared by several Western Desert languages (e.g., Maralinga Tjarutja, Yankunytjatjara, Pitjantjatjara, Ngaanyatjarra), to acknowledge that this lizard belongs to the country where these languages are spoken. The specific epithet is a noun in apposition to the genus.

Ivan Prates, Mark N. Hutchinson, Joel A. Huey, Mia J. Hillyer and Daniel L. Rabosky. 2022. A New Lizard Species (Scincidae: Ctenotus) highlights persistent Knowledge Gaps on the Biodiversity of Australia’s central Deserts. Bulletin of the Society of Systematic Biologists. 1(2):8720. DOI: 10.18061/bssb.v1i2.8720

twitter.com/Skinks_IUCN/status/1533951778462388224

Akysis patrator

Ng, Pawangkhanant & Suwannapoom, 2022

Mae Klong Wasp Catfish || DOI: 10.23788/IEF-1186

facebook.com: Parinya Pawangkhanant

A new species of sisoroid catfish in the genus Akysis is described from the Mae Klong drainage in western Thailand, marking the first record of this genus there. Akysis patrator, new species, can be distinguished from congeners in having the adipose fin preceded by a long, low ridge contacting the base of the last dorsal-fin ray and a colour pattern of a light brown body with a chocolate brown reticulate pattern on its sides.

Akysis patrator

Heok Hee Ng, Parinya Pawangkhanant and Chatmongkon Suwannapoom. 2022. Plugging the Gap: Description of A New Akysis Species represents A New Record of the Genus from the Mae Klong Drainage in western Thailand (Teleostei: Siluriformes: Akysidae). Ichthyol. Explor. Freshwaters. DOI: 10.23788/IEF-1186

facebook.com/HerpGuideParinya/posts/10225985475535293

Pteragogus turdus

Iino & Motomura, 2022

DOI: 10.1007/s10228-022-00875-0

www.Kagoshima-U.ac.jp

Abstract

Pteragogus turdus sp. nov. (Labridae) is described on the basis of 65 specimens (18.5–81.4 mm in standard length: SL) from the eastern Indian Ocean (Western Australia) and western Pacific Ocean. The new species is characterized by the following combination of characters: 10 dorsal-fin spines; 10–15 (modally 12, rarely 14 or 15) total gill rakers; dorsal profile of head straight; 10th dorsal-fin spine relatively short, its length 14.3–20.6% (mean 17.0%) of SL; longest pelvic-fin soft ray length 16.5–24.3% (20.4%) of SL; anterior two or three dorsal-fin spines with filamentous membrane tips in terminal phase males; anal-fin spines with relatively short filamentous membrane tips; anterior nostril with dark brown margin; three slightly curved bluish-gray vertical lines usually on cheek below eye when fresh; white stripe usually on head extending from snout tip to upper end of opercle through upper part of iris (distinct in life); large circular or elliptical dark brown blotch (subequal to eye size) margined with faint yellow or orange on upper opercle; a few small dark brown spots on mid-lateral surface of body; no black spots on abdomen; dark brown blotch on membrane between 1st and 2nd dorsal-fin spines (sometimes indistinct in life); dark brown spot usually below base of last dorsal-fin soft ray; pelvic fin generally pale reddish-white with a broad reddish-brown band medially.

Keywords: Taxonomy, Morphology, Distribution, Pteragogus cryptus

fresh preserved specimen of Pteragogus turdus sp. nov.
BPBM 16195, holotype, 68.5 mm SL, Alite Reef, Solomon Islands

(photo by J. Randall)

Pteragogus turdus sp. nov. (specimen not collected).
adult individual, Ishigaki-jima Island, the Ryukyu Islands

(photo by K. Nishiyama)

Pteragogus turdus sp. nov.

(New English name: Thrush Sneaky Wrasse;

new standard Japanese name: Tanuki-ohagurobera)

Distribution. Widely known from the eastern Indian Ocean (Western Australia) and western Pacific Ocean (Japan, Taiwan, Thailand, Vietnam, Philippines, Palau, Micronesia, Indonesia, Papua New Guinea, Solomon Islands, eastern Australia, New Caledonia, Fiji, Tonga, and Samoa) (Fig. 4).

Etymology. The specific name “turdus” is derived from Latin meaning “thrush”, in reference to the white stripe extending from the snout tip to the upper end of the opercle and an indistinct reticulated pattern on the body, which are reminiscent of the dusky thrush (Turdus eunomus).

Tomoka Iino and Hiroyuki Motomura. 2022. Pteragogus turdus, A New Species of Wrasse (Perciformes: Labridae) from the Indo-West Pacific Ocean. Ichthyological Research. DOI: 10.1007/s10228-022-00875-0

【博物館】インド・西太平洋に広く分布するベラ科魚類の新種を発見、国内では屋久島以南に分布

www.Kagoshima-U.ac.jp/topics/2022/06/post-1927.html

ปลานกขุนทองขี้อาย (Cryptic wrasse) Pteragogus cryptus

Petalidium sesfonteinense Swanepoel & E.Tripp,

in Swanepoel & Manzitto-Tripp, 2022.

DOI: 10.11646/phytotaxa.549.2.1

Abstract

Petalidium sesfonteinense, previously most commonly confused with the widespread P. variabile, is here described as a new species. It is only known from the Sesfontein area in the Kaokoveld Centre of Endemism, northwestern Namibia, where it grows on hillsides and along ephemeral riverbeds. Diagnostic characters for P. sesfonteinense include the short, stout trunk on older plants, white bark that peels on the younger branches in long, narrow strips, dendritic trichomes on vegetative parts, flowers in short dichasia with acute oblanceolate bracts, flowers with externally glabrous corollas, corolla lobes that are pink, magenta, apricot or cream and with the two upper lobes connate towards the base and the lower lobe with two yellow spots near the base. A comparison of some of the more prominent morphological features to differentiate Petalidium sesfonteinense from close relatives is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Least Concern (LC) is recommended for the new species.

Keywords: Desert, endemism, flora, Kaokoveld, Ruellieae, Sesfontein, taxonomy

Petalidium sesfonteinense Swanepoel & E.Tripp.
Morphology of flowers. A–D. Flowers in front view showing variation in corolla colour and lobe margins, with two yellow nectar guides. E. Corolla in lateral view. F. Corolla in dorsal view. G. Corolla in ventral view.

Scale bar = 5 mm.

Photographs: W. Swanepoel. Swanepoel 568 (E, F & G).

Petalidium sesfonteinense Swanepoel & E.Tripp.
A. Habit. Plant about 40 cm tall. B. Flower, shoots, and leaves; greyish leaves are still densely covered in trichomes; green leaves almost glabrous.

Photographs: W. Swanepoel. Swanepoel 568.

Petalidium sesfonteinense Swanepoel & E.Tripp, sp. nov.

Diagnosis:— A woody shrub up to 1 m tall, morphologically most similar to Petalidium kaokoense and P. variabile; from P. kaokoense it differs in having an indumentum on vegetative parts of relatively slender dendritic trichomes (vs. relatively stout stalked-stellate trichomes interspersed with dendritic trichomes), bracts oblanceolate (vs. linear-oblanceolate or linear-lanceolate), bracteoles symmetrically elliptic or narrowly ovate with long multicellular glandular trichomes and venation weak or not prominent (vs. asymmetrically elliptic-oblong, long multicellular glandular trichomes absent, reticulation prominent), corolla with expanded portion of tube glabrous externally (vs. strigose), upper lobes connate for 20–30% of their length and obovate (vs. 50%, oblong), lobes variously coloured (white, pink, magenta, apricot, yellow, or cream) and in contrast with maroon throat and mouth (vs. lobes, throat, and mouth maroon), seeds cordate (vs. discoid or ovate); from P. variabile it differs in indumentum on young stems different from that on leaves (vs. similar), indumentum on leaves dendritic (vs. strigose), bracteoles usually with long multicellular trichomes (vs. absent), expanded portion of corolla tube glabrous externally (vs. with short appressed simple trichomes), all corolla lobes of same colour and shade (vs. front corolla lobe differently coloured or shaded than other lobes), capsule flattened ellipsoid or ovoid, sides rugose or smooth (vs. flattened ovoid, sides smooth).

Distribution and habitat:—At present, Petalidium sesfonteinense is only known from the vicinity of Sesfontein and the surrounding mountainous area up to Tomakas in the west and Warmquelle in the east (Fig. 3). It occurs on hillsides, along seasonally dry riverbeds and at the base of rocky outcrops at elevations of 340–1070 m a.s.l., about 75–125 km from the Atlantic Ocean. Average annual rainfall in the area is 100–150 mm (Mendelsohn et al. 2002).

Conservation status:—Petalidium sesfonteinense is locally common and probably more widespread in suitable habitats than currently recorded. It is here considered not in immediate conservation danger, because it occurs in sparsely to unpopulated areas and does not seem to be utilised by humans. However, it is browsed by livestock (goats) of the local inhabitants (pers. obs.). The area of occupancy is estimated at < 20000 km² (2250 km²) with less than 10 (8) subpopulations. However, since no decline in population size or numbers is known, it is here ranked as Least Concern (LC) (IUCN 2012).

Etymology:—The specific epithet refers to Sesfontein, a village in northwestern Namibia near the type locality.

Wessel Swanepoel and Erin A. Manzitto-Tripp. 2022. Petalidium sesfonteinense (Acanthaceae), A New Species from the Kaokoveld, Namibia. Phytotaxa. 549(2); 127-135. DOI: 10.11646/phytotaxa.549.2.1

Begonia lanuzaensis Blasco, Rubite, Cortes & Alejandro.

in Blasco, Rubite, Cortes & Alejandro, 2021.

DOI: 10.11646/phytotaxa.523.3.1

Abstract

Begonia lanuzaensis from Mt. Nabuywang, Lanuza, Surigao del Sur, is described as a new species endemic to the Philippines. B. lanuzaensis is allied to B. mindanaensis and B. agusanensis in having oblanceolate leaves with short petioles and four-tepalled staminate flowers but is distinct in having glabrous stems and petioles; bigger, triangular and glabrous stipules and larger leaves.

Key words: Begonia, endemic, monoecious, Mindanao, Surigao del Sur, taxonomy

Begonia lanuzaensis Blasco, Rubite, Cortes & Alejandro.
A. Habit; B. Cross-section of ovary; C. Female bud; D. Fruit; E. Female flower (front view); F. Male flower (front view); G. Female flower attached to the node.

Illustration by: Propa Joy Santor.

Begonia lanuzaensis Blasco, Rubite, Cortes & Alejandro.
A. Habit; B. Female flower; C. Ovary; D. Stipule; E. Male flower.

Begonia lanuzaensis Blasco, Rubite, Cortes & Alejandro, sp. nov.

Sect. Petermannia

Diagnosis:—Begonia lanuzaensis is similar to B. mindanaensis Warb. in its habit with arching stems, oblanceolate leaves with short petioles, and four–tepalled staminate flowers. However, the new species differs in having larger leaves (18–20 × 7–9 cm, not 7–10 ×2–4 cm) with tiny pink bristles on the margin (vs. without bristles), glabrous stipules (vs. pubescent), glabrous stems (vs scabrid), and female flowers with 4 tepals (vs. 5).

It superficially resembles B. agusanensis Merr. in having erect stems and leaves with short petioles, but differs in leaf shape (base obliquely acute, not obliquely cordate) and male flowers solitary in the axils (not in many flowered cymes on a long peduncle).

Etymology:—The specific epithet “lanuzaensis” is derived from the type locality.

Distribution and ecology:—Endemic to the Province of Surigao del Sur, Mindanao, Philippines. It grows on shady, moist rocky slopes along sides of small streams.

Freddie A. Blasco, Rosario R. Rubite, Junelito C. Cortes, Grecebio Jonathan D. Alejandro. 2021. Begonia lanuzaensis (sect. Petermannia, Begoniaceae) A New Species from Surigao del Sur, Mindanao Island, Philippines. Phytotaxa. 523(3); 203-207. DOI: 10.11646/phytotaxa.523.3.1

facebook.com/ProjectBiodiverCitizen/photos/3120951351522999

Begonia amparoi Blasco, Alejandro, Tandang & Rubite,

in Blasco, Alejandro, ... & Rubite, 2022.

DOI: 10.11646/phytotaxa.549.2.2

Abstract

We describe Begonia amparoi, a new species of Begonia section Baryandra from Linungaw Twin Islands, Mindanao, Philippines. It grows on limestone and has a robust habit, with a thick rhizome and large leaves. Begonia amparoi is currently known only from the type locality in a coastal island forest of Tandag City, Province of Surigao del Sur. Based on IUCN red list criteria, B. amparoi is considered Vulnerable (VU).

Keywords: endemic, limestone, taxonomy, Begonia trichochila, Vulnerable, Eudicots

Begonia amparoi Blasco, Alejandro, Tandang & Rubite.
A, Habit; B, Staminate flower front view; C, Staminate flower side view; D, Stamens; E, Pistillate flower bud; F, Young fruit with style and stigma; G, Young fruits; H, Cross section of the ovary.

(Illustration by Danilo N. Tandang, based on the type collection).

Begonia amparoi Blasco, Alejandro, Tandang & Rubite.
A, Rhizome; B, Habit; C, Habitat; D, Leaf abaxial view; E, Leaf margin; F, Inflorescence; G, Staminate flower side view; H, Staminate flower front view; I, Young fruits

(Photos of the type collection).

Begonia amparoi Blasco, Alejandro, Tandang & Rubite, sp. nov.

§ Baryandra

Diagnosis:—Begonia amparoi resembles B. calcicola Merr. in habit and having thick rhizomatous brown stems but differs in petioles with 3 mm red hairs from the top near the junction of lamina becoming glabrous down the base (vs. with numerous, scattered, brown, fimbriate 3mm palea); glabrous and longer leaves 33−35 cm (vs. hairy 10–20 cm); long peduncles, 68 cm (vs. 45 cm) and larger capsules 15−17 × 17−19 mm, broadly ovate, apex roundly acute, base obtuse (vs. 8 × 12 mm, obovoid, apex truncate, base rounded).

Etymology:—The specific epithet “amparoi” is derived from Dr. Amparo A. Perez to honor her 50 years of unending service to Saint Theresa College of Tandag. Educator, dean, haciendera, philanthropist, and a dear friend. Distribution and

Ecology:—Endemic to the province of Surigao del Sur, Mindanao, Philippines. It grows on limestone rocks in semi-shaded broadleaf forest at the seashore of Linungaw Twin Islands, where it is found on both the main island (which is the type locality) and the grotto island.

Freddie A. Blasco, Grecebio Jonathan D. Alejandro, Danilo N. Tandang, Marianita B. Vales and Rosario R. Rubite. 2022. Begonia amparoi (Begoniaceae, section Baryandra) A New Species from Linungaw Twin Islands, Surigao del Sur, Mindanao, Philippines. Phytotaxa. 549(2); 136-140. DOI: 10.11646/phytotaxa.549.2.2

Reconstruction of the palaeoecosystem of the Upper Cretaceous (Cenomanian) Bahariya Formation of the Bahariya Oasis, Western Desert of Egypt, showing diversity of large-bodied theropod dinosaurs.

in Salem, Lamanna, O'Connor, ... et Sallam, 2022.

DOI: 10.1098/rsos.220106

AUCEgypt.edu

Artwork by Andrew McAfee, Carnegie Museum of Natural History.

Abstract

Numerous non-avian theropod dinosaur fossils have been reported from the Upper Cretaceous (Cenomanian) Bahariya Formation, Bahariya Oasis, Western Desert of Egypt, but unambiguous materials of Abelisauridae have yet to be documented. Here we report Mansoura University Vertebrate Paleontology Center (MUVP) specimen 477, an isolated, well-preserved tenth cervical vertebra of a medium-sized abelisaurid from the Bahariya Formation. The new vertebra shows affinities with those of other Upper Cretaceous abelisaurids from Madagascar and South America, such as Majungasaurus crenatissimus, Carnotaurus sastrei, Viavenator exxoni and a generically indeterminate Patagonian specimen (Museo Padre Molina specimen 99). Phylogenetic analysis recovers the Bahariya form within Abelisauridae, either in a polytomy of all included abelisaurids (strict consensus tree) or as an early branching member of the otherwise South American clade Brachyrostra (50% majority rule consensus tree). MUVP 477, therefore, represents the first confirmed abelisaurid fossil from the Bahariya Formation and the oldest definitive record of the clade from Egypt and northeastern Africa more generally. The new vertebra demonstrates the wide geographical distribution of Abelisauridae across North Africa during the middle Cretaceous and augments the already extraordinarily diverse large-bodied theropod assemblage of the Bahariya Formation, a record that also includes representatives of Spinosauridae, Carcharodontosauridae and Bahariasauridae.

Keywords: Abelisauridae, Egypt, Africa, Cretaceous, Bahariya Formation

Tenth cervical vertebra of Abelisauridae indet. (MUVP 477)
in cranial (a), caudal (b), left lateral (c), right dorsolateral (d), ventral (e) and dorsal (f) views.

Reconstruction of the palaeoecosystem of the Upper Cretaceous (Cenomanian) Bahariya Formation of the Bahariya Oasis, Western Desert of Egypt, showing diversity of large-bodied theropod dinosaurs.
In the foreground, the unidentified abelisaurid described herein (right) confronts the spinosaurid Spinosaurus aegyptiacus (left centre, with dipnoan (lungfish) Retodus tuberculatus in jaws) and the carcharodontosaurid Carcharodontosaurus saharicus (right centre) while two individuals of the stomatosuchid crocodyliform Stomatosuchus inermis (left) look on. In the background, a herd of the titanosaurian sauropod Paralititan stromeri (left) warily regards these theropods and two individuals of the bahariasaurid Bahariasaurus ingens (far right) while a small flock of an undescribed pterosaur soars above. The vegetation is dominated by the mangrove-like tree fern Weichselia reticulata.

Artwork by Andrew McAfee, Carnegie Museum of Natural History.

Conclusion:

The cervical vertebra (MUVP 477) described herein represents the first confirmed fossil of Abelisauridae from the Bahariya Formation, establishing it as the oldest definitive record of this theropod clade from Egypt and northeastern Africa more generally. The new vertebra demonstrates the wide geographical distribution of abelisaurids across North Africa during the middle Cretaceous and augments the already extraordinarily diverse large-bodied non-avian theropod record of the Bahariya Formation, a unit that also preserves representatives of Spinosauridae, Carcharodontosauridae and Bahariasauridae. This abelisaurid/spinosaurid/carcharodontosaurid/bahariasaurid faunal assemblage appears to have extended across most or all of northern Africa during the Cenomanian, suggesting that the Trans-Saharan Seaway did not represent a significant barrier to large-bodied theropod dispersal at this time. The Bahariya Formation holds unrealized potential to improve understanding of this northern African Cenomanian fauna due to the relative commonality of phylogenetically informative associated partial skeletons in this stratigraphic unit.

Belal S. Salem, Matthew C. Lamanna, Patrick M. O'Connor, Gamal M. El-Qot, Fatma Shaker, Wael A. Thabet, Sanaa El-Sayed and Hesham M. Sallam. 2022. First Definitive Record of Abelisauridae (Theropoda: Ceratosauria) from the Cretaceous Bahariya Formation, Bahariya Oasis, Western Desert of Egypt. R. Soc. open sci. 9220106. DOI: 10.1098/rsos.220106

Hesham Sallam Leads Egyptian Team’s Discovery of Bizarre Meat-Eating Dinosaur in Egypt’s Bahariya Oasis

AUCEgypt.edu/news/hesham-sallam-leads-egyptian-team%E2%80%99s-discovery-bizarre-meat-eating-dinosaur-egypt%E2%80%99s-bahariya

in Barker, Lockwood, Naish, ... et Gostling, 2022.

DOI: 10.7717/peerj.13543

Abstract

Postcranial elements (cervical, sacral and caudal vertebrae, as well as ilium, rib and limb bone fragments) belonging to a gigantic tetanuran theropod were recovered from the basal unit (the White Rock Sandstone equivalent) of the Vectis Formation near Compton Chine, on the southwest coast of the Isle of Wight. These remains appear to pertain to the same individual, with enormous dimensions similar to those of the Spinosaurus holotype and exceeding those of the largest European theropods previously reported. A combination of features—including the presence of spinodiapophyseal webbing on an anterior caudal vertebra—suggest that this is a member of Spinosauridae, though a lack of convincing autapomorphies precludes the identification of a new taxon. Phylogenetic analysis supports spinosaurid affinities but we were unable to determine a more precise position within the clade weak support for a position within Spinosaurinae or an early-diverging position within Spinosauridae were found in some data runs. Bioerosion in the form of curved tubes is evident on several pieces, potentially related to harvesting behaviour by coleopteran bioeroders. This is the first spinosaurid reported from the Vectis Formation and the youngest British material referred to the clade. This Vectis Formation spinosaurid is unusual in that the majority of dinosaurs from the Lower Cretaceous units of the Wealden Supergroup are from the fluviolacustrine deposits of the underlying Barremian Wessex Formation. In contrast, the lagoonal facies of the upper Barremian–lower Aptian Vectis Formation only rarely yield dinosaur material. Our conclusions are in keeping with previous studies that emphasise western Europe as a pivotal region within spinosaurid origination and diversification.

Chris T. Barker, Jeremy A.F. Lockwood, Darren Naish, Sophie Brown, Amy Hart, Ethan Tulloch and Neil J. Gostling. 2022. A European Giant: A Large Spinosaurid (Dinosauria: Theropoda) from the Vectis Formation (Wealden Group, Early Cretaceous), UK. PeerJ. 10:e13543. DOI: 10.7717/peerj.13543

Rhonciscus pauco

Tavera, Schärer-Umpierre & Acero P., 2022

DOI: 10.7717/peerj.13502

Abstract

A fourth species of the genus Rhonciscus (Lutjaniformes: Haemulidae) is described from various specimens collected by small-scale fishers from the insular upper slope of western Puerto Rico. The new species was molecularly recovered as sister to the Eastern Pacific R. branickii, to which it bears many morphological similarities. It is distinguished from other Rhonciscus species by the number of scale rows between the dorsal fin and the lateral line (7), larger and thus fewer scales along the lateral line (48–50), large eyes (9.4–10.4 times in SL), longer caudal peduncle (15.2–20% of SL), larger sized penultimate (14.7–19.1% in SL) and last (7.4–9.5% in SL) dorsal fin spines which translates to a less deeply notched dorsal fin, and its opalescent silver with golden specks live coloration. This grunt, only now recognized by ichthyologists, but well known by local fishers that target snappers and groupers between 200 and 500 m in depth, occurs in far deeper waters than any western Atlantic grunt.

Rhonciscus pauco, sp. nov. OMNH 86864, holotype, 266 mm SL,
from Tres Cerros, Rincón, Puerto Rico.

Rhonciscus pauco, sp. nov. Underwater photograph taken at 218 m depth in western Puerto Rico.

Image: NOAA NCCOS 2022.

Rhonciscus pauco sp. nov.

Opalescent Grunt

(Spanish name: Ronco opalescente)

Diagnosis. A species of the genus Rhonciscus with XIII, 12 (total 25) dorsal-fin rays; anal-fin rays III, 7; pectoral-fin rays 15–16, 17(1); rather elongate body, maximum depth 32–37.4% SL; convex predorsal profile; eye large, its diameter 9.4% to 10.4% SL; snout subequal to eye, its length 7.6% to 11.5% SL; very coarse serrations on angle of preopercular margin; pectoral fin long (28–32.5% SL) extending beyond the tip of pelvic fin, barely reaching anus; head length 30–37.3% SL; longest dorsal-fin spine (fifth) (12.1–19.1% SL); relatively long and much thicker second anal-fin spine (16.4–21.8% SL), long caudal peduncle (15.2–20% of SL), and a large size of the penultimate (14.7–19.1% in SL) and last dorsal-fin (7.4–9.5% in SL) spines which translate to a less deeply notched dorsal fin, eye diameter 0.5 to 0.6 times length of anal fin spine; maxilla reaching anterior border of pupil; seven scale rows between dorsal fin and lateral line; 48 to 50 lateral–line scales.

Distribution. Rhonciscus pauco is found on the deep shelf and upper slope of the western coast of the northeastern Caribbean island of Puerto Rico. We are uncertain of the species’ exact range, but fishers report capturing them exclusively in fine sediment habitats distributed between the municipalities of Rincón and Mayagüez, off western Puerto Rico (Fig. 1). No additional information is currently available.

Habitat. Collection depths range from 200–360 m in fine unconsolidated sediment or mud habitats (Fig. 5).

Etymology. The name pauco comes from the fisher’s nickname Paúco, Edwin Font, who already knew of this fish locally called burro or ronco (grunt). Mr. Font was the first to report and provided specimens to MS, although it is recognized by various fishers as a component of the deep-water catch in western Puerto Rico.

Jose Tavera, Michelle T. Schärer-Umpierre and Arturo Acero P. 2022. A New Species of Deep-sea Grunt, Rhonciscus pauco (Lutjaniformes: Haemulidae), from Puerto Rico. PeerJ. 10:e13502 . DOI: 10.7717/peerj.13502

Asplenium jiulianshanense K.W.Xu & G.L.Xu

in Lin, Xu, Jin, Liao & Xu, 2022.

九连山铁角蕨 || DOI: 10.3897/phytokeys.199.81292

Abstract

Asplenium jiulianshanense, a new tetraploid fern species of the A. normale complex (Aspleniaceae) from Jiulianshan National Nature Reserve, southern Jiangxi, China is described and illustrated. We inferred the phylogenetic position of the new species based on sequences from seven plastid markers (atpB, rbcL, rps4, rps4-trnS, trnL, trnL-F, and trnG) and one low-copy nuclear gene, pgiC. The plastid phylogeny supported a close relationship among the new species A. jiulianshanense, A. minutifolium, and A. kiangsuense, while the nuclear phylogeny differed in topology from the plastid tree. The new species may be due to hybridization between A. kiangsuense and A. boreale. Morphologically, the new species can easily be distinguished from other members of the A. normale complex by rachises bearing a gemma near the apex, pinna margins entire to sparsely crenate, and (1‒)3‒4(‒6) sori per pinna.

Keywords: Black-stemmed spleenworts, conservation, new taxon, species complex, taxonomy

Asplenium jiulianshanense K.W.Xu & G.L.Xu
A, B habitat where the new species was discovered C habit D rhizome and roots
E irregular branch of lamina F adaxial view of portion of lamina G abaxial view of portion of fertile lamina H frond with a gemma at the distal end of the rachis.

Asplenium jiulianshanense K.W.Xu & G.L.Xu
A habit B pinna showing the venation and the distribution of sori C rhizome scale.

Scale bars: 2 cm (A); 5 mm (B); 2 mm (C).

 Asplenium jiulianshanense K.W.Xu & G.L.Xu, sp. nov.

Diagnosis: Asplenium jiulianshanense somewhat resembles A. kiangsuense by its small size, rachises adaxially without a deep furrow, pinnae elliptic to trapeziform-oblong, sori 3–4 per pinna in the middle part of frond. However, the former has rachises with only one gemma near apex, pinnae (15‒)20‒35 pairs, pinna margins entire to sparsely crenate, exospore length 37‒43 μm, while the latter has rachises without gemmae near the apex, pinnae 8‒20(‒22) pairs, pinna margins entire to sinuate, exospore length 31‒36 μm.

Etymology: Based on the Chinese pinyin, Jiulianshan, the name of the National Nature Reserve in southern Jiangxi, China, referring to the type locality of the species.

Vernacular name: 九连山铁角蕨 (jiǔ-lián-shān tiě-jiǎo-jué).

Geographical distribution and habit: Asplenium jiulianshanense is known only from a single locality in Mount Jiulianshan, Jiangxi, China, where there have been multiple collections. It was observed to grow on cliff rocks under shrubs at an elevation of ca. 200 m in subtropical evergreen broad-leaved forest.

Chen-Xue Lin, Guo-Liang Xu, Zhi-Fang Jin, Wen-Bo Liao and Ke-Wang Xu. 2022. Molecular, Chromosomal, and Morphological Evidence reveals A New Allotetraploid Fern Species of Asplenium (Aspleniaceae) from southern Jiangxi, China. PhytoKeys. 199: 113-127. DOI: 10.3897/phytokeys.199.81292

Leptocereus velozianus Clase, Y.Encarn., Peguero & Majure,

in Majure, Encarnación, Clase, Peguero, Ho & Barrios, 2021.

DOI: 10.3897/phytokeys.172.59497

Photos taken by L.C. Majure.

Abstract

The Antillean genus Leptocereus represents an in-situ radiation among the Greater and Lesser Antilles of 19 currently recognized species. Extensive fieldwork carried out in the Dominican Republic over recent years has revealed that the species limits of Leptocereus of Hispaniola are more complex than previously thought. There are four currently recognized species that occur on the island, L. demissus, L. paniculatus, L. undulosus and L. weingartianus. We evaluate species limits in this group based on DNA sequence data and phylogenetic analysis, morphological characters and a survey of herbarium specimens from across Hispaniola. Based on our analyses, it is clear that at least five species occur on the island of Hispaniola, with the new species from Sierra de Bahoruco, L. velozianus, described here. We provide an identification key, distribution maps and photographic plates for all species on Hispaniola based on our own fieldwork and the study of herbarium specimens. The description of yet another species of Leptocereus on Hispaniola reiterates the importance of the poorly studied, but yet biodiverse, seasonally dry tropical forest in the Antilles.

Keywords: Biodiversity, Greater Antilles, plastome phylogeny, Seasonally Dry Tropical Forest

Leptocereus velozianus Clase, Y.Encarn., Peguero & Majure.
A–C stems showing crenate margins D, E cross sections showing 4-5 ribbed stems, also showing large crystals in the parenchyma F day old flower showing rounded external tepal apices and spiny pericarpel, and G immature fruit showing spiny pericarpel and remnant floral tube.

A from Majure 7842, and B–F from Majure 7843.

Leptocereus velozianus Clase, Y.Encarn., Peguero & Majure.
A small tree habit of L. velozianus alongside T. Clase for scale B, C arching branches and spine color D trunk and bark E growing stem showing white spines as they mature F spiny, immature fruit G colliculate-pitted seed, and H stems with immature fruit, showing crenate rib margins.

A, D, F, G from Majure 7851 B, C, H from Majure 7843, and E from Majure 7842.

Photos taken by L.C. Majure.

Leptocereus velozianus Clase, Y.Encarn., Peguero & Majure, sp. nov.

Diagnosis: Differing from both L. weingartianus and L. demissus by the white young spines (vs. yellowish spines) and larger stem diameter (up to 3.7 cm in diameter in L. velozianus). Differing from L. demissus by the erect, primary trunk rather than the sprawling growth form, and oblong hypanthium in L. velozianus rather than obconic hypanthium as in L. demissus.

Etymology: The specific epithet, “velozianus” is given honoring the Dominican botanist Alberto Veloz, who is the Head and Curator of the Herbarium JBSD of the “Dr. Rafael M. Moscoso” National Botanical Garden of Dominican Republic. For 27 years, Veloz has dedicated his life to the study of the Hispaniolan flora and has conducted extensive fieldwork across the island, with many collections from the Sierra de Bahoruco, where this new species was found. Together with other botanists he has collected over 10,000 specimens and has published several papers on the flora in national and international journals. His publications have included different approaches, such as floristics, taxonomy, ecology and conservation. Veloz has also contributed to the formation of young botanists by involving students as part of the staff in the herbarium JBSD and through fieldwork.

Lucas C. Majure, Yuley Encarnación, Teodoro Clase, Brígido Peguero, Kelly Ho and Duniel Barrios. 2021. Phylogenetics of Leptocereus (Cactaceae) on Hispaniola: Clarifying Species Limits in the L. weingartianus complex and A New Species from the Sierra de Bahoruco. PhytoKeys. 172: 17-37. DOI: 10.3897/phytokeys.172.59497

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