[Herpetology • 2017] Sphaenorhynchus cammaeus • A New Species of Sphaenorhynchus (Anura: Hylidae) from northeastern Brazil

We describe a new species of Sphaenorhynchus from highland forest habitats in the Reserva Biológica de Pedra Talhada, an Atlantic Forest remnant of northeastern Brazil [ca. 850 m elevation]. The new species is diagnosed by having a snout–vent length of 24.8–29.3 mm in males and 26.6 mm in the only available female; snout truncate in dorsal view, protruding in lateral view; vocal sac single, subgular, moderately developed, extending to the middle of the pectoral region, longitudinal folds present; dorsolateral black line from the tip of snout extending posteriorly beyond the eye to gradually disappear on the flanks; white glandular subcloacal dermal fold present; vomerine, premaxillary, and maxillary teeth present; and advertisement call with 2–3 pulsed notes (3–6 pulses each) with a duration of 0.19–0.24 s, a frequency range of 526.3–4438.8 Hz, and a dominant frequency of 2250–3000 Hz. It is the eighth species of the genus that occurs in northeastern Brazil.

Keywords: Atlantic Forest, Hatchet-faced treefrogs, Reserva Biológica de Pedra Talhada, Species description, Taxonomy, Vocalization

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FIG. 4.— Dorsal and ventral views of  Sphaenorhynchus cammaeus in life. (upper) URCA-H 9285. (C–D) URCA-H 9286.

Sphaenorhynchus cammaeus sp. nov.
Etymology.— The specific epithet is a Medieval Latin name that means carved precious stone with two color layers.It is given in reference to the name of the type locality (Pedra Talhada = carved stone) and also to the beauty of the species.
  

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Dorsal view of  Sphaenorhynchus cammaeus  in life, URCA-H 9285.