Yellow-belly Sea Snake ( Hydrophis platurus Linnaeus, 1766 )

  • Sharebar
Scientific Name: 
Hydrophis platurus (Linnaeus, 1766)
Regional Names: 
Pelagic Sea Snake
Full Body Shot - Top
Found in all seas of Indian subcontinent including Islands. Also found widely in seas of Australia, China, Colombia, Costa Rica, El Salvador, Ecuador, Fiji, Guatemala, Honduras, Iran, Japan, Madagascar, Malaysia, Maldives, Mexico, Micronesia, Myanmar, Namibia, Nauru, New Caledonia, New Zealand, Nicaragua, North Korea, Pakistan, Panama, Papua New Guinea, Oman, Peru, Philippines, Russia, Solomon Islands, Somalia, South Korea, Sri Lanka, Taiwan, Tanzania, Thailand, Vanuatu, Vietnam, UAE and USA.
Venom Type: 

Average length- 70cm.
Maximum length- 98cm.

Laterally compressed, more on posterior side and its greatest diameter is more than twice of neck. Dorsal body patternless blue-black with yellow or brownish color on side and belly. These two colors clearly demarche from each other. On posterior side these two colors form wavy curves. Tail white with alternative patches of black color of somewhat triangular shape. In other form black patches or stripe found on yellow part.

Head elongated, slightly broader than neck and covered with large shields. Greater part of head similar to top dorsal i.e. bluish-black with upper lip lined with yellow. Eyes moderate and have rounded pupil.

Head shields entire; 7-8 supralabial, 2nd in contact with prefrontal, 4th & 5th below the eyes, usually separated by small suboculars; 1-2 preocular, 2-3 postocular; 2-3 anterior temporal, small.
49-67 rows around the mid-body; more or less juxtaposed or quadrangular; the lower rows with 2-3 small keels, strong in males.
264-406, very small, usually divided by a median furrow, not distinct from adjacent dorsal scales.
Natural History: 
Viviparous. Female directly gives birth to 2-6 young from starting of monsoon to starting of winters.
Direct threats are killings in fishing operations. Several individuals get trapped in fishing nets and fisherman kill them before taking them out of net.
Authors & Contributors: