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Animal Database
Animal Database
Colubrine Sea Krait
Laticauda colubrina
Common Name Banded Sea krait or Yellow-lipped Sea Krait
Range Indo-Pacific Oceans
Scientific Classification
Kingdom Animalia
Phylum Chordata
Class Reptilia
Order Squamata
Family Hydrophiidae
Genus Crotalus
Species Crotalus Colubrina
Conservation Status
Least Concern

The Colubrine Sea Krait is a specie from the Crotalus genus. It is commonly found in the Indo-Pacific Oceans.


Ventrals are large, one-third to more than half the width of the body; nostrils are lateral; nasals are separated by internasals; 21-25 longitudinal rows of imbricate scales are found at midbody; an azygous prefrontal shield is usually present; and the rostrals are undivided.

The body is subcylindrical, only slightly compressed. The rostral is higher than broad; an azygous shield separates the prefrontals, but sometimes is absent; the frontal is considerably longer than its distance from the end of the snout; one preocular and two postoculars are present; with 7-8 supralabials, the 3rd-4th touch the eye temporals 1+2 ; five infralabials are in contact with the genials, both pairs of which are usually well developed and in contact with one another, the anterior pair is smaller than the posterior; a double series of elongated scales, the inner series the larger, occur at the oral margin. Scales are in 21-23 rows (rarely 25). Ventrals number 213 to 245, and are about four times as long as broad. Caudals in males number 37-47, and in females 29-35 (Smith 1943:443).

The yellow snout and paddle-like tail of L. colubrina, Zamboanguita, Philippines Total length: males 875 mm, females 1420 mm; tail length: males 130 mm, females 145 mm. In colour these snakes are light or dark bluish grey above, yellowish below, with black bands more or less of uniform width throughout or narrowing on the belly (some of them interrupted below). Upper lip yellow. Snout yellow, the colour extending backward on each side of the head on each side of the head above the eye as far as the temporal shields, leaving a dark bar in between. Rest of the head is black. They are venomous but are not aggressive to divers.


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