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Dryophiops philippina
''Dryophiops philippina'', also known as the Keel-bellied Whipsnake or simply Philippine Whipsnake, a species of rear-fanged colubrid snake that is endemic to the Philippines. One similar specie, ''Dryophiops rubescens'' exists in Thailand and Malaysia.
== Description ==
Its body is about 3 to 6 feet long. Coloration is dark brown or black, sometimes gray above as in the ''Dryophiops rubescens'' and often with a light green or pale blue flecks. The tongue is bright red. Cream or white colored lateral stripes on each side are bisected by dark blackish lines, which are nearly continuous along the dorsolateral stripe. It has a broad head, large eyes in proportion to the head, and a slender neck. The dorsal scales are smooth, not keeled. The belly scutes have 15 scale rows at the midsection and have faint dark lines that give the impression that it is keeled. The chin is white but can sometimes be yellow. Its neck down to mid-body is yellow and the rest of the body is brown. There is one small scale on the face called the preocular scale, located in front of the eye and wedged between two other scales, called the upper labials. The scales on the top of the head are large, a feature that distinguishes this snake from ''Dryophiops rubescens''.
The two species are almost identical except that ''D.philippina'' does not have a keeled belly.
If alarmed, they quickly move in a sidewinding manner on the ground. The only snake besides the Dog-faced water snake, ''Cerberus rynchops'' and the sidewinder rattlesnake to do so.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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