Hydrophis spiralis
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Hydrophis spiralis, commonly known as the yellow sea snake, is a species of venomous sea snake in the family Elapidae.[1][2]
Description
This is perhaps the longest species of sea-snake, measuring up to Script error: No such module "convert".; however, most specimens do not exceed 2.0 meters.[2] This marine serpent is cathemeral, i.e., active both by day and night.[3]
Diagnostic characteristics
The scales on the thickest part of the body have rounded or pointed tips, and are imbricate. Six or seven maxillary teeth are found behind the fangs. The species has 25–31 scale rows around its neck, 33–38 around its midbody, and ventrals number 295–362, and are distinct throughout and about twice as broad as adjacent body scales. Its color is yellowish or yellowish-green above; the dorsal scales are edged with black, and 41–46 narrow black bands encircle the body; the bands are usually less than one-third the width of the lighter interspaces. The head, in the young, is black, with a yellow horseshoe-shaped marking; in the adult, the head is usually yellow. Total length in males is about Script error: No such module "convert"., and females Script error: No such module "convert".; tail lengths are Script error: No such module "convert". and Script error: No such module "convert". in males and females respectively.[4]
Geographic range
Hydrophis spiralis is found in the Indian Ocean (Persian Gulf, off the coasts of Oman, United Arab Emirates, Iran, Iraq, Saudi Arabia, Bahrain and Kuwait. It is also found in Pakistan, Sri Lanka, India (incl. Andaman & Nicobar Is.), Indonesia, Bangladesh, Malaysia, Philippines, China, New Guinea, New Caledonia/Loyalty Islands, Thailand, Vietnam, Brunei, Cambodia and Myanmar.[4][2][5] The species has been reported to live in waters as deep as 50m.[2]
References
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- ↑ a b The Reptile Database. www.reptile-database.org.
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Further reading
- Frith, C.B. 1977. The sea snake Hydrophis spiralis (Shaw); a new species of the fauna of Thailand. Nat. Hist. Bull. Siam Soc. (Bangkok) 26: 339–341.
- Shaw, G. 1802. General Zoology or Systematic Natural History, Vol. III., Part II. Amphibia. G. Kearsley (Thomas Davison, printer). London. vi + 313–365. (Hydrus spiralis, p. 564.)