334 Sir'V. S. Raffles'* Descriptive Catalogue 



one, called by the Sumatrans Ular Poochook, &>*$ h\ which 

 has some resemblance to the C, gramineus, but is larger and 

 much more venomous, being peculiarly distinguished by having 

 two fangs on each side, of extraordinary length. 



This species appears to be undescribed, and may be named 

 C'. $umatra?ius. 



It is about four or five feet in length, and rather thick. The 

 head is large and obtusely triangular, with two large plates 

 above each eye. The general colour is green ; but the body 

 is encircled by several irregular black rings, and the tail is of 

 a reddish colour. Each scale on the body is ed^ed with black. 

 The fangs are above half an inch in length, white and slender, 

 curved backwards. The number of abdominal scales is 184; 

 of caudal 69. It is found in the forests, chiefly upon trees, 

 and considered very dangerous. 



Another snake, which appears to be new, was found at Sin- 

 gapore, and is related to C. Dipsas by the large dorsal scales. It. 

 is not venomous; 'is about six feet long, and of a pretty uniform 

 reddish colour, becoming rather dusky on the head and light on 

 the belly. There are several other snakes of less importance, 

 among which the Ular Tanna, or Ground Snake, and Ular 

 Chindi, marked with red spots along the sides, may be princi- 

 pally noticed. 



The Boa Constrictor is occasionally found in Sumatra. One 

 in the collection measured eleven feet and a half in length. A 

 portion of the skin of another was brought to me from the inte- 

 rior of Sumatra, which, when dry, was upwards of twenty-one 

 inches in circumference. 



The Acrochordus fasciatus, or Hydrus granulatus of Schneider, 

 is sometimes but rarely met with on the coasts of Sumatra. 



Of Hydrus there are three species or varieties, having consi- 

 derable 



