- Gerarda prevostiana
Taxobox | name = Gerard's Water Snake
regnum =Animal ia
phylum =Chordata
classis =Reptilia
ordo =Squamata
subordo =Serpentes
familia =Colubridae
genus = "Gerarda "
species = "prevostiana"
binomial = "Gerarda prevostiana"
binomial_authority = (Eydoux & Gervais, 1822)Gerard's Water Snake, Cat-eyed Water Snake "Gerarda prevostiana" is a species of water
snake found inAsia . They feed almost exclusively on crabs. (Jayne et al. 2002).Description
Frontal a little longer than broad, shorter than its distance from the end of the snout, or than the parietals; loreal slightly longer than deep, a little smaller than the nasal; one pre- and two post-oculars ; temporals 1+2; upper labials 8, fourth entering the eye; 4 lower labials in contact with the anterior chin-shields, which are much larger than the posterior. Scales in 17 rows. Ventrals 146-158; anal divided; subcaudals 31-34. Uniform dark olive above; three outer rows of scales whitish; upper lip white, rostral dark olive; ventrals and subcaudals whitish, with dark edges. [Boulenger, G. A. 1890. Fauna of British India. Reptilia and Batrachia. Taylor & Francis, London. p. 379]
Total length 16 inches; tail 2.
Distribution
;India, Myanmar (= Burma), Sri Lanka, Thailand, Philippine Islands (?);Bangladesh; West Malaysia; Singapore.
Notes
References
* Eydoux, F. & P. Gervais 1822 Voyage de la Favourite. Reptiles. Mag. Zool. Guérin, Paris, 111: 1 - 10
* Jayne, B. C., Voris, H. K. & Ng, P. K. L. 2002 Snake circumvents constraints on prey size. Nature 418: 143External links
*
* http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Gerarda_prevostiana.jpg
* http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Gerarda_prevostiana2.jpg
* http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Gerarda_prevostiana3.jpg
Wikimedia Foundation. 2010.
