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Recognizing Deadly Venomous Snakes from Harmless Snakes of Sri Lanka

Recognizing Deadly Venomous Snakes from Harmless Snakes of Sri Lanka

Recognizing Deadly Venomous Snakes from Harmless Snakes of Sri Lanka

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and white. Posterior half <strong>of</strong> the head in juveniles is white. However the white<br />

colour diminishes gradually with age.<br />

Simple identification: Large hexagonal shaped scales running down its spine.<br />

Scales smooth on back. They are much larger than all the other surrounding<br />

scales.<br />

4.4 Non venomous species that<br />

mimic the <strong>Sri</strong> <strong>Lanka</strong>n Krait<br />

There are three harmless snakes (<strong>Sri</strong> <strong>Lanka</strong>n wolf snake and two bridal snakes)<br />

that mimic the <strong>Sri</strong> <strong>Lanka</strong>n krait.<br />

Left: Faded white cross bars in an adult. Right: Prominent white cross bars in a juvenile.<br />

34<br />

Distribution: Wet, intermediate and rarely seen in the dry zone.<br />

Behavior: It is a nocturnal species that is aggressive at night. Commonly<br />

found in and around human settlements. Potentially non-aggressive in<br />

nature, but may attack if provoked or threatened. Will roll in to a ball with its<br />

head well concealed when agitated, and will remain still until the perceived<br />

danger passes. They display this behavior much better than the Indian Krait.<br />

Feeds on: Other snakes, geckoes, lizards and rodents etc.<br />

Reproduction: They lay 6-10 eggs per clutch.<br />

4.4.1 Cercaspis carinata<br />

<strong>Sri</strong> <strong>Lanka</strong> wolf snake (E); Dhara radankaya (S)<br />

Toxicity: Non venomous<br />

Size: 65 cm<br />

An adult specimen.<br />

Colouration: Head jet black and shiny, the body is black with white cross bars.<br />

These cross bars are prominent in juveniles/young and as they become adults the<br />

lines gradually disappear or become reduced to scattered cross bars. Ventral or<br />

the underside is black or alternately black and white. Posterior half <strong>of</strong> the head<br />

in juveniles is white and gradually diminishes with age.

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