Sri Lanka

Sri Lanka is a humid tropical island lying in the South Asian region, in the Indian Ocean, between latitudes 5º 55′ and 9º 51′ N and longitudes 79º 41′ – 81º 54′ E. During the late Miocene period, The island is 65,610 km2 in area, of which 64,742 km2 is land and the remainder is inland water.

Monday, October 12, 2015

Bungarus caeruleus (Indian krait (E) ;Thel karawala (S))

Indian krait (E) ;Thel karawala (S)
Bungarus caeruleus 


Toxicity: Deadly venomous
Size: 25 cm- 140 cm

Colouration
Back bluish black to a pale faded bluish grey, with white cross bars occurring in pairs which become less distinct at the anterior end. These cross bars are prominent in juveniles or young animals and the lines gradually disappear or become reduced to scattered cross bars in adults. The ventral side, or the underside is off-white.

Simple identification character
Large hexagonal shaped scales running down its spine. Scales on its back are smooth, with the mid row much larger than all the other surrounding scales. This feature is the most important characteristic when identifying the species.
 





Clear pairs of cross bars of a juvenile.






The cross bars gradually diminishing in adults.
But both show enlarged hexagonal scale rows along the spine.


Behavior:
It is a nocturnal species that is aggressive at night. Commonly found in and around human settlements. May attack if threatened but generally nonaggressive during day time. Will roll into a ball with its head well-concealed when agitated, and might spring out from this position upon further agitation. Feeds on: Other snakes, geckoes, lizards, rodents etc. Reproduction: They lay 10- 16 eggs per clutch.



Distribution: Non-endemic. Distributed in the dry, arid, and intermediate zones.
Feeds on: Other snakes, geckoes, lizards, rodents etc.
Reproduction: They lay 10- 16 eggs per clutch.


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