Coelognathus radiatus (Boie, 1827)
Copperhead Racer 三索錦蛇

Coelognathus radiatus
Squamata 有鱗目
Serpentes 蛇亞目
Family Colubridae 游蛇科
Genus Coelognathus
Species Coelognathus radiatus
Other name Copperhead Rat Snake, Radiated Rat snake
Chinese name 三索線, 廣蛇, 白花錦蛇, 白花蛇, 索蛇
Total length Average 150 cm, can reach 210 cm.
Description Back brownish, yellowish or greyish, with 4 black stripes which broken into streaks on the neck.
Stripes distinct on the anterior half of the body, fade and disappear further down.
Head with black collar, 3 black lines radiate from behind each eye.
Ventrals greyish; Scales weakly keeled.

Prefer open, dry, hilly, rocky habitat in grassland and shrubland.
Seldom in high mountain and broad-leaf woodland.
Absent from the interior of dense forest.

Behaviour Diurnal. Active and fast-moving snake.
Vicious and aggressive.
When threatened, inflates the neck to show bluish skin, bend the anterior half of body into loops and mouth widely open.
Will strike and bites when handled.
Diet Rodents, birds, lizards, frogs
Reproduction Lays at least 7 eggs, hatches in 2 months.
Hatchling about 25 cm, similar colour pattern and defensive behaviour to adults.
Distribution Widely distributed in Hong Kong including major islands and some small islands.
Occurs in India, south China, Laos, Cambodia, Vietnam, Thailand, Malaysia, Indonesia.
Conservation Status IUCN Redlist: NE (Not Evaluated)
China Redlist: Endangered
Coelognathus radiatus Coelognathus radiatus Coelognathus radiatus Coelognathus radiatus
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