Xenochrophis cerasogaster

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Painted keelback
Painted Keelback from Kolkata, West Bengal (India).jpg
Adult from Kolkata, West Bengal (India)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Xenochrophis
Species:
X. cerasogaster
Binomial name
Xenochrophis cerasogaster
(Cantor, 1839) [1]
Synonyms

Psammophis cerasogaster [1]

The painted keelback (Xenochrophis cerasogaster) is a species of colubrid snake found in Pakistan, Nepal, Bangladesh, and India (Assam, Uttar Pradesh, West Bengal:- Kolkata). This snake is also called the dark-bellied marsh snake.

Contents

Description

See snake scales for terminology

In this species, the head is narrow and elongated, with an angular canthus rostralis and slightly concave lores; the eyes are moderate or rather small. The rostral is 1.5 to 3.0 times as broad as it is long; the suture between the internasals is nearly as long as that between the prefrontals; the frontal is much longer than its distance from the end of the snout, as long as the parietals; the lorealae are as long as deep or a little longer, It has one preocular, two or three postoculars, and one or two suboculars; the temporals number 2+2 or 2+3. It has 9 upper labials, with the fourth (rarely fifth) entering the eye; the five or six lower labials are in contact with the anterior chin shields, which are about as long as the posterior. Its scales are strongly keeled, in 19 rows, with 140-151 ventral scales; the anal scale is divided; the subcaudals are 60–70 in number.

This snake is brown above, with or without darker spots and with a more or less distinct paler dorsolateral band. The lower parts are cherry-red to purplish-black, with a yellow band on each side extending from the lips to the end of the tail. Total length is two feet, and the tail is 5.5 inches. [2]

Kolkata, West Bengal (India) Painted Keelback (X.cerasogaster).jpg
Kolkata, West Bengal (India)
Painted keelback Painted Keelback.jpg
Painted keelback
Dark bellied marsh snake..jpg
Xenochrophis cerasogaster.jpg
Head shots of three different specimens.jpg

See also

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References

  1. 1 2 Cantor, Theodore Edward (1839). "839 Spicilegium serpentium indicorum [parts 1 and 2]". Proceedings of the Zoological Society of London. 7: 31–34, 49–55.
  2. Boulenger, George Albert (1890). "Reptilia and Batrachia". In Blanford, W. T. (ed.). The fauna of British India, including Ceylon and Burma. London: Taylor and Francis.