Oreolalax yanyuanensis Hou, Zheng, Yu, Wang, Chen & Xie, 2024, sp. nov.
Year: 2024
Type: other
Abstract: Oreolalax yanyuanensis sp. nov. Figs 3, 4, 5, 6 Type material. Holotype. • CIBSH 20230603020 (Fig. 3), adult male, collected by F. Xie from Shuhe town, Yanyuan county, Sichuan Province (27.473443 ° N, 101.789624 ° E, 3108 m a. s. l.) China. Paratypes. • Seven adult males collected from a small stream of Shuhe town (27.475205 ° N, 101.789108 ° E, 3127 m a. s. l.); on June 3, 2023 (CIBSH 20230603016–19, CIBSH 20230603021, CIBSH 20230603023–24) by P. Y. Zheng, H. Q. Yu and F. Xie. Other specimens. • Seven tadpoles (CIBSH 20230603 kd 01–07) collected from a small stream of Shuhe town (27.466241 ° N, 101.786933 ° E, 3032 m a. s. l.); on June 3, 2023; by P. Y. Zheng, H. Q. Yu and F. Xie. Diagnosis. The new species is assigned to genus Oreolalax based on following characters: maxillary teeth prominent; back rough, scattered with large warts, covered with oval black spots; pupil vertical; tongue moderately broad, notched behind; femoral glands prominent; pectoral and axillary gland present in males. The new species differs from its congeners by a combination of the following characters: body size moderate 39.8–52.8 mm in male; head broad; tympanum hidden; distinct black spots present on flanks; toes 1 / 3 webbed, with broad lateral fringes; dorsal body deep brown or yellowish-brown; belly smooth, middle yellow, scattered fine mottling, abdominal margin more spotted; skin on dorsum rough with dense and varied size granules, warts are covered with dark spots or no spots; iris light orange or light yellow above, creamy silver white bellow; and middle pectoral glands are evident in males. Holotype description (Fig. 3). Body size moderate (SVL 47.4 mm). Head width greater than length (HW 17.6 mm, HL 16.2 mm); maxillary teeth developed, without vomerine teeth or acoustic sac; snout bluntly rounded in dorsal view, slightly projecting over lower jaw, longer than eye diameter (SL 6.3 mm, ED 5.9 mm); canthus rostralis indistinct, interorbital distance (IOD 5.0 mm) wider than internarial distance (IND 3.5 mm), distinctly larger than upper eyelid (UEW 3.0 mm); nostrils oval, closer to tip of snout than eyes (EN 3.1 mm, NS 3.0 mm); no tympanic membrane; supratympanic fold broad; tongue moderately broad, notched behind; pupil vertical. Fingers moderate, relative finger lengths: I head length, the new species differs from O. chuanbeiensis, O. nanjiangensis (vs. head width ≈ head length), O. weigoldi (vs. head width = head length), O. multipunctatus, O. popei, O. rhodostigmatus, and O. schmidti (vs. head width
Authors: Hou, Yin Meng, Zheng, Pu Yang, Yu, Hao Qi, Wang, Bin, Chen, Xiao Hong, Xie, Feng
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6930323101
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