A new species of the genus Hebius (Squamata: Colubridae) from Sichuan, China

作者：Liu, Qin; Zhong, Guang-Hui; Wang, Ping; Liu, Yang; Guo, Peng^*

来源：Zootaxa, 2018, 4483(2): 385-394.

DOI：10.11646/zootaxa.4483.2.10

• Hebius yanbianensis sp nov.
• Natricinae
• morphology
• new species
• taxonomy

A new species of the natricine snake genus Hebius Thompson, 1913 is described from Sichuan Province, Southwest China, based on a single male specimen. The new species is distinguished from its congeners found in China and adjacent regions by possessing the following combination of characters: 1) TL/SVL ratio 0.35; 2) three postoculars; 3) six temporals in formula 1/(1+1) +1+2; 4) eight supralabials, 4 th and 5 th in contact with the eye, 6 th supralabial largest; 5) ten infralabials with the first five bordering the anterior chinshields; 6) 172 ventrals (plus two preventrals); 7) cloacal plate divided; 8) 90 divided subcaudals; 9) dorsal scales in 19-19-17 rows, all weakly keeled except the outer two; 10) reduction of dorsal scale rows from 19 to 17 at the position above ventral scale 99 th; 11) reduction of the tail dorsal scales from 8 to 6 rows at the position above 18 th subcaudal, and from 6 to 4 rows at the position above 37 th subcaudal; 12) postorbital bones do not touch frontals, the parietal ridge weakly developed; the end of the supratemporal bones extending beyond the braincase; maxillary teeth 23-25, the last two enlarged, without diastema between them and the anterior teeth. This species is an evergreen forest dweller.

• 出版日期2018-9-21
• 单位宜宾学院; 四川省林业科学研究院; 新疆农业大学