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Phytolopsis punctata GRAY, 1849

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Higher TaxaHomalopsidae, Colubroidea, Alethinophidia, Serpentes, Squamata (snakes) 
Common NamesE: Blackwater Mud Snake, Spotted Water Snake
G: Gefleckte Wassertrugnatter 
SynonymPhytolopsis punctata GRAY 1849: 68
Eurostus heteraspis BLEEKER 1859: 440
Tachyplotus hedemanni REINHARDT 1866: 151
Pythonopsis borneensis PETERS 1871: 576
Pythonopsis punctata — PETERS 1872
Hypsirhina hageni LIDTH DE JEUDE 1890: 20
Hypsirhina punctata — BOULENGER 1896: 3
Hypsirhina punctata — WERNER 1900: 490
Enhydris punctata — STEJNEGER 1907
Enhydris punctata — SMEDLEY 1931: 54
Enhydris punctata — GRANDISON 1978: 292
Enhydris punctata — BAUER et al. 1995: 74
Enhydris punctata — WALLACH et al. 2014: 273
Phytolopsis punctata — MURPHY & VORIS 2014: 32 
DistributionWest Malaysia, Sarawak,
Indonesia (Bangka, Belitung, Java, Kalimantan/Borneo, Sumatra);
Brunei Darussalam;

Type locality: see comment  
TypesHolotype: BMNH 1946.1.2.37 
DiagnosisDIAGNOSIS (genus): Large bodied, dorsal scales in 25–27 rows; upper labials number 11–13, those behind eye horizontally divided; lower labials 12–15; ventrals 148–160; subcaudals 36–48; upper labial 5 or 5–6 under orbit; no suboculars; two pairs of chin shields, first pair very wide. Readily distinguished from Homalophis by lower number of scales at mid-body (29–33 in Homalophis), single supraocular (2 or 3 in Homalophis), and absence of subocular (MURPHY & VORIS 2014: 32). 
CommentDistribution: original type locality given erroneously as India.

Type species: Phytolopsis punctata GRAY 1849: 68 is the type species of the genus Phytolopsis GRAY 1849. 
  • David,P. & Vogel,G. 1996. The snakes of Sumatra. An annotated checklist and key with natural history notes. Bücher Kreth, Frankfurt/M.
  • Fabre, Anne-Claire; David Bickford, Marion Segall and Anthony Herrel 2016. The impact of diet, habitat use, and behaviour on head shape evolution in homalopsid snakes Biological Journal of the Linnean Society, DOI: 10.1111/bij.12753 - get paper here
  • Grandison, A. G. C. 1978. Snakes of West Malaysia and Singapore. Annalen des Naturhistorischen Museums in Wien 81 [1977]: 283-303 - get paper here
  • Gray, J. E. 1849. Catalogue of the specimens of snakes in the collection of the British Museum. Edward Newman, London, i-xv; 1-125. - get paper here
  • Murphy, J.C. & Voris, H.K. 2014. A Checklist and Key to the Homalopsid Snakes (Reptilia, Squamata, Serpentes), with the Description of New Genera. FIELDIANA: LIFE AND EARTH SCIENCES (8): 1–43 - get paper here
  • Murphy, John C. 2007. Homalopsid Snakes: Evolution in the Mud. Krieger Publishing, Malabar, Florida, 249 pp.
  • Peters, W. 1871. Uber neue Reptilien aus Ostafrika und Sarawak (Borneo), vorzüglich aus der Sammlung des Hrn. Marquis J. Doria zu Genua. Mber. k. preuss. Akad. Wiss., Berlin [1871]: 566-581 - get paper here
  • Smedley, N. 1931. Notes on some Malaysian snakes. Bull. Raffles Mus. No 5: 49-54
  • TEYNIÉ, ALEXANDRE; PATRICK DAVID, & ANNEMARIE OHLER 2010. Note on a collection of Amphibians and Reptiles from Western Sumatra (Indonesia), with the description of a new species of the genus Bufo. Zootaxa 2416: 1–43 - get paper here
  • Tweedie,M.W.F. 1940. Notes on Malayan reptiles. Bull. Raffles Mus., Singapore 16: 83-87
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Werner, F. 1900. Reptilien und Batrachier aus Sumatra, gesammelt Herrn. Gustav Schneider jr., im Jahre 1897-1898. Zool. Jahrb. (syst) 13: 479-508 - get paper here
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