Dendrelaphis nigroserratus VOGEL, VAN ROOIJEN & HAUSER, 2012
Can you confirm these amateur observations of Dendrelaphis nigroserratus?
|Higher Taxa||Colubridae, Ahaetuliinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Common Names||Saw-tooth-necked Bronzeback|
|Synonym||Dendrelaphis nigroserratus VOGEL, VAN ROOIJEN & HAUSER 2012|
Dendrelaphis striatus — SEESOOK 2000
Dendrelaphis striatus — PAUWELS et al. 2000
Dendrelaphis cyanochloris — PAUWELS et al. 2003
Dendrelaphis nigroserratus — WALLACH et al. 2014: 219
|Distribution||West Thailand (Tak), extreme S Myanmar (Mergui, Myeik)|
Type locality: Umphang Wildlife Sanctuary, Umphang district, province Tak, Thailand. Found on Highway 1090, at 5.1 km north and uphill from the bridge over the Mae Klong Khi, near the Karen village of Mae Klong Khi, c. 1100 m elevation.
|Types||Holotype: QSMI 1282, juvenile road-killed female (Fig. 4, 6) collected by Sjon Hauser, on 13 October 2011|
Paratypes (2 specimens). – BMNH 1918.104.22.168 (formerly 1922.214.171.124), female, “Mergui, Burma”, collector F. Wall; ZFMK 92809, damaged specimen, sex unknown, probably a female, “Between Umphang and Mae Sot, Tak Province, Thailand”, collector: G. Vogel.
|Comment||D. nigroserratus sp. nov. is similar to D. cyanochloris (Wall, 1921) with which it occurs sympatrically. It is distinguished from the latter by its highly conspicuous neck coloration, high incidence of paired postparietal shields and its much larger size. In coloration, it resem- bles D. striatus (Cohn, 1906) from which it is distinguished by several aspects of its morphology.|
Diagnosis. A species of the colubrid genus Dendrelaphis characterized by 1) a black postocular stripe that extends onto the neck where it forms a pronounced saw-tooth pattern that further posteriorly breaks up into broad black oblique bars, 2) ground colour olive, 3) pale ventrolateral line absent, 4) strongly enlarged vertebral scales, 5) 15 smooth dorsal scales at midbody, 6) 197–204 ventral scales, 7) 148–152 paired subcaudal scales, 8) anal shield divided, 9) relative tail-length 0.30–0.31, 10) 9 supralabials, 4th through 6th touch the eye, 11) maximum known total length 156 cm.
|Etymology||Etymology and suggested common name. The specific epithet is based on the Latin niger (black) and serrare (to saw) and refers to the conspicuous black zigzag (saw-toothed) pattern on the neck.|
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