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Calliophis nigrescens

Calliophis nigrescens (*)

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Reptilia
Subclassis: Diapsida
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Elapoidea
Familia: Elapidae
Genus: Calliophis
Species: C. bivirgatus

Black Coral Snake Calliophis nigrescens is a species of venomous snake found in the Western Ghats of India.

Description

See snake scales for terms used

Rostral broader than long; frontal as long as its distance from the end of the snout, much shorter than tho parietals; one pre- and two postoculars; a single temporal; 7 upper labials, third and fourth entering the eye ; anterior chin-shields as long as the posterior or a little shorter, in contact with four labials. Scales in 13 rows. Ventrals 232-261; anal usually divided; subcaudals 33-44. This species comprises four principal colour varieties, which ore connected by insensible gradations; in all the head and nape are black, with an oblique yellow band, sometimes broken up into spots, on each side from the parietals to behind the angle of the mouth, and the upper lip is yellow in front of and behind the eye; lower parts uniform red.[1]

* A. Dark purplish brown above, with three or five longitudinal series of black, light-edged spots.
* B. The spots confluent and forming three longitudinal black bands edged with whitish.
* C. As in the preceding, but the black bands without light edges.
* D. Pale reddish brown or red above, with five block longitudinal bands. Total length 3.5 feet; tail 4-5 inches.


Distribution

Western Ghats, Karwar, Wayanad, Nilgiris, Anamalai and Travancore hills at 4000–6000 feet.

References

1. ^ Boulenger, G. A. 1890. Fauna of British India. Reptilia and Batrachia.

* Günther, A. 1862 On new species of snakes in the collection of the British Museum. Ann. Mag. nat. Hist. (3) 9: 124-132
* Slowinski, Joseph B.; Boundy, Jeff & Lawson,R. 2001 The phylogenetic relationships of Asian coral snakes (ElapidaCalliophis and Maticora) based on morphological and molecular characters. Herpetologica 57 (2): 233-245
* Vyas, Raju 1988 Extension range of the striped coral snake (Callophis nigrescens) Hamadryad 13 (2): 3-4

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License