Opisthotropis haihaensis ZIEGLER, PHAM, NGUYEN, NGUYEN, WANG, WANG, STUART, & LE, 2019
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Opisthotropis haihaensis
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| Higher Taxa | Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Hai Ha Mountain Stream Keelback Vietnamese: Rắn trán hải hà Chinese: 海河后棱蛇 (Hai He Hou Leng She) |
| Synonym | Opisthotropis haihaensis ZIEGLER, PHAM, NGUYEN, NGUYEN, WANG, WANG, STUART, & LE 2019 Opisthotropis maculosa — YANG et al. (2011) (part) Opisthotropis maculosa — STUART & CHUAYNKERN 2007 Opisthotropis maculosa — NGUYEN et al. 2018: 74 |
| Distribution | Vietnam (Quang Ninh), China Type locality: forest near Tai Chi Village, Quang Son Commune, Hai Ha District, Quang Ninh Province, 950 m elevation, Vietnam [exact locality and coordinates not provided owing to threat from collection for the pet trade (below)], |
| Reproduction | |
| Types | Holotype: IEBR A.2016.34 [Field No. QN 2016.91], adult female, collected by Cuong The Pham and Tan Van Nguyen on 9 May 2016 (Figs. 2–3). |
| Diagnosis | Diagnosis: A species of the genus Opisthotropis characterized by having the following combination of characters: (1) internasal not in contact with loreal; (2) prefrontal not touching supraocular; (3) frontal touching preocular; (4) one preocular; (5) one postocular; (6) one anterior temporal; (7) one posterior temporal; (8) supralabials eight, fourth and fifth in contact with eye; (9) 24 maxillary teeth; (10) anterior pair of chin shields longer than posterior pair; (11) ventrals 169 (+ 2 preventrals); (12) subcaudals 79; (13) 15 dorsal scale rows at neck, at midbody and before vent; (14) body and tail scales smooth; (15) chin shields yellow with brownish black mottling; (16) body and tail dorsum dark with each a light spot per scale. Additional details (4053 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Habitat: The adult female holotype was found at night in a small rocky stream at 2130h. The surround- ing habitat was secondary evergreen forest consisting of small hardwood trees, bamboo, and shrubs (see Nguyen et al., 2018). The air temperature was 24–29°C and the relative humidity was 65–88%. |
| Etymology | This species is named after its type locality in Hai Ha District, Quang Ninh Province, Vietnam. |
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