220 



SNAKES OP CEYLON. 



Growth.^The total length is 884 mm. (2 feet 11 inches), 

 of which the tail accounts for 244 mm. (9| inches). 



Lepidosis. — Loreal : None. Postoculars : Three. Sublin- 

 guals : The posterior touch the 4th and 5th infralabials. 

 Costals: In 13 rows, at midbody. Ventrals: 175. Suh- 

 caudals : 129. 



Distribution, — (a) General : Ceylon. 



(6) Local: Said to be from Colombo. The only specimen 

 known was sent to Dr. Werner by John Hagenbeck. 



Genus DENDRELAPHIS. 



(Greek " dendron " tree, and " elaphis " snake.) 



General Characters. — The remarks made under Dendrophis 

 apply equally to this genus. The species of both genera 

 are extremely alike, and are only separated on account of 

 differences in the posterior maxillary teeth. In Dendrophis 

 these are enlarged, in Dendrelaphis they are not. (See fig. 45.) 



Fig. 45 A. — Maxilla and mandible of Dendrelaphis trigtis. 



B. — Maxilla of Dendrophis. 



