193 



Type-specimen examined in the British Museum. 

 Habitat: Aru Islands (Kobroor); New Guinea (Lorentz 



river 



I M 



N. W. Australia!. 



44. Hipistes Gray. 

 (Gray, Cat. Sn. p. 77, 1849). 



Head small, not distinct from neck; eye very small; pupil 

 vertically elliptic; shields of head small, parietals broken up; 

 nasals divided, separated by a single internasal; nostril trans- 

 verse; loreal present. Maxillary teeth 8 or 9, followed by two 

 enlarged grooved teeth after an interspace. Body long, a little 

 compressed, covered with smooth scales without pits, juxta- 

 posed or imbricate, in 35 — 43 rows; ventrals narrow, with two 

 keels. Tail short, a little compressed; subcaudals narrow, in 

 two rows. 



Distribution. Mouth of rivers and coasts of Burma, Pegu, 

 Siam, Malay Peninsula; Sumatra. 



A single species. 



Fig- 75- Hipistes hydrifiits (Cant.). X 'A* 

 Side view of head 1 ventral shields with two keels. 



l) Two specimens have a narrow shield between the two praefrontals, 

 Indo-australian reptiles II. 13 



