Homalopsis semizonata BLYTH, 1855
Can you confirm these amateur observations of Homalopsis semizonata?
|Higher Taxa||Homalopsidae, Colubroidea, Alethinophidia, Serpentes, Squamata (snakes)|
|Common Names||Martaban Water Snake|
|Synonym||Homalopsis semizonata BLYTH 1855: 187|
Pythonia semizonata — BLYTH, 1859: 279
Pythonella semizonata — CARLLEYLE, 1869: 200 (lapsus for Pythonia)
Homalopsis buccata – THEOBALD 1868: 58 (part.)
Homalopsis buccata – THEOBALD 1868: 66 (part.)
Homalopsis buccata – NICHOLSON 1874: 62 (part.)
Homalopsis buccata – THEOBALD 1876: 185 (part.)
Homalopsis buccata – BOULENGER 1887: 475 (part.)
Homalopsis buccata – SCLATER 1891: 53 (part.)
Homalopsis buccata – BOULENGER 1893: 309 (part.)
Homalopsis buccata – BOULENGER 1896: 16 (part.)
Homalopsis buccata – WALL & EVANS 1901: 616 (part.)
Homalopsis buccata – WALL 1903: 94 (part.)
Homalopsis buccata – ROOIJ 1917: 186 (part.)
Homalopsis buccata – WALL 1923: 38 (part.)
Homalopsis buccata – HUNDLEY 1964: 22 (part.)
Homalopsis buccata – DOWLING & JENNER 1988: 4 (part.)
Homalopsis buccata – MURPHY 2007: 193 (part.)
Homalopsis semizonata — MURPHY & VORIS 2014: 25
Homalopsis semizonata — WALLACH et al. 2014: 335
Type Locality: Mottama (formerly Martaban), Myanmar.
|Types||Holotype: ZSI 8137, collected by Major Berdmore|
|Diagnosis||Diagnosis. Homalopsis semizonata has a divided or fragmented loreal contacting upper labials 1–4 or 1–5; three prefrontals; 39–44 dorsal scale rows at midbody, reduced to more than 30 posteriorly; one postocular and one postsubocular. Homalopsis buccata has a single loreal contacting upper labials 1-4; two prefrontals; 33–40 dorsal scale rows at midbody, reduced to less than 30 posteriorly; H. hardwickii has two prefrontal scales; 39 scale rows at midbody reduced to 28 posteriorly. Homalopsis nigroventralis has upper labials 1–3 contacting the loreal; two pre- frontals; 35–39 dorsal scale rows at midbody, reduced to less than 30 posteriorly; one or two postocular scales plus one postsubocular scale; and a reverse color pattern on the venter (dark olive-gray with white spots). H. mereljcoxi has a single loreal contacting upper labials 1–4; two prefrontals; 40–47 scale rows at midbody, reduced to 30 or more posteriorly; two postocular scales plus a postsubocular [MURPHY et al. 2012].|
Original description: “Homalopsis semizonata, nobis. This is remarkably fine species has not of a little the aspect of Viper, from the small scales of its seize, the subdivision of its head plates, and the general colouring. Form moderately thick; the body with 39 rows of small strongly carinated scales. Vertical plate transversely divided into two; the anterior portion triangular, with apex to the front; the posterior semicircular and behind the latter is a remarkable range of five small plates, the medial being elongated backwards between the occipitals and posterior to this again is a minute inter-occipital: occipitals curiously scalloped each with three incisions; one posterior, one exterior, and one interior: two pairs of frontals; a freanal and a post-nasal. Colour pale yel- lowish-brown, marked on the upper-parts with about 36 semi annuli, which are of a blackish hue on the edges, paler within; on the hinder part of the body and tail are some black spots on the pale inter-spaces; and a medial black streak from the occiput it continued to the second transverse semi-annulus; a triangular black spot on the snout; also a blackish eye-streak; and a small spots on each occipital: lower-parts with two irregular rows of dark spots from throat to vent, bordering the scutae; and the sub-caudal scutellae are marked throughout with black. Number of scutae, 168; scutellae, 78 pairs. Length of specimen 27 in., of which tails is 6 in. It is remarkable that abdominal scute begin to divide obliquely as they approach the vent, the last two or three assuming the appreance of pairs of scutellae” [BLYTH 1855, cited from MURPHY et al. 2012].
|Comment||Synonymy after MURPHY et al. 2012.|
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