In South Africa the harmless egg-eating snake (Dasypeltis scaber) is very like the Cape adder (Bitis atropos); and in Ceylon the harmless Colubrine Lycodon aulicus is alleged to mimic Bungarus ceylonicus, an ally of the deadly krait of India.
The so-called colubrine venomous snakes, which retain in a great measure an external resemblance to the innocuous snakes, have the maxillary bone not at all, or but little, shortened, armed in front with a fixed, erect fang, which is provided with a deep groove or canal for the conveyance of the poison, the fluid being secreted by a special poison-gland.
Colubrine Snakes, Brit.
It is impossible here to mention any but the more obvious genera and groups of colubrine snakes.
No part of the world possesses so many snakes of this sub-family as Australia, where, in fact, they replace the non-venomous colubrine snakes; many of them are extremely common and spread over a considerable area.
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