Hebius leucomystax (DAVID, BAIN, QUANG TRUONG, ORLOV, VOGEL, NGOC THANH & ZIEGLER, 2007)
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Hebius leucomystax
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| Higher Taxa | Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: White-lipped Keelback F: Amphiesme à lêvres blanches G: Weißlippen-Gebirgswassernatter Vietnamese: Ran sai mep trang |
| Synonym | Amphiesma leucomystax DAVID, BAIN, QUANG TRUONG, ORLOV, VOGEL, NGOC THANH & ZIEGLER 2007 Amphiesma sp. — ZIEGLER 2002 Hebius leucomystax — GUO et al. 2014 Amphiesma leucomystax — PAUWELS et al. 2015 Amphiesma leucomystax — WALLACH et al. 2014: 31 Hebius leucomystax — DAVID et al. 2021 |
| Distribution | C Vietnam [(Quy Chau District), Ha Tinh (Cam Xuyen and Huong Son Districts), Quang Binh (Bo Trach and Minh Hoa Districts), Quang Tri (A Luoi, Phu Loc and Huong Hoa Districts), Thua Thien-Hue (Huong Thuy and A Luoi Districts), Quang Nam (Ba Na National Park, Hoa Vang District), Kon Tum (Ngoc Linh Mt., on the border between Quang Nam and Kon Tum Provinces), and Gia Lai (An Khe District)], Thailand, Laos Type locality: southeastern border of the Ky Anh - Ke Go lowland forest protected area, surroundings 18°00’N-106°06’E, Cam Xuyen District, Ha Tinh Province, Vietnam, 125 m elevation. |
| Reproduction | oviparous |
| Types | Holotype: ZFMK 71702, an adult female. Coll. by Thomas Ziegler, 12 July1997. |
| Diagnosis | Diagnosis: A species of the genus Amphiesma, characterized by a combination of the following characters: (1) a broad, continuous, white stripe extending under the eye from the tip of the snout across the upper half of supralabials and the nape to produce a V-like chevron; (2) vertically elongated or divided dorsolateral spots, salmon or rusty red (cream in preservative) on a dark grey background; (3) tips of ventrals black, with additional faint and ill defined dark blotches on inner side; (4) 19-19-17 DSR, distinctly keeled on rows 3–1 or 4–1, smooth on rows 1–2 or 1–3; scales of 1st DSR enlarged; (5) 154–166 ventral plates; (6) internasals narrowed anteriorly; (7) 1 anterior temporal, 1 preocular and usually 3 postoculars; (8) a moderately sized eye. |
| Comment | |
| Etymology | The specific nomen derives from the Greek adjective , leucos, meaning white, and the Greek noun “mystax”, meaning either a moustache or an upper lip, a reference to the broad white stripe extending on the upper lips of this species. |
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