116 BARBOUR: ZOOGEOGRAPHY. 



there during March and April, 1907. Bryant also took ten there, one at Daroe 

 Bantam and five at Depok. All of these fall in with the characters which 

 Stejneger (loc. cil., p. 345) has used in his key. "Scale rows 15; scale rows a 

 head length anterior to vent 11 ; ventrals less than 185." 



Known from Asia, from northern India to southern China southward; also 

 from Sumatra and Ja\'a. 



None of the smaller of these specimens, say from two to two and a half feet 

 long, have any traces of the cross-bands composed of transverse series of pearl- 

 shaped spots, which, according to Stejneger, the young are said to possess. The 

 Malay name is XJlar Kar-rus. 



P. mucosus (Linne) was not observed in Java; nor did Bryant find a speci- 

 men in his long collecting. 



Xenelaphis hexagonotus (Cantor). 

 Cantor, Cat. Malay, rept., 1847, p. 74. Botjlenger, Cat. snakes Brit, mus., II, 1894, p. 8. 



Type locality: — "the great Hill of Pinang." 



The only Insulindian individual examined is one wliich Bryant got at 

 Buitenzorg. Its ventral count, 178, is seven less than the lowest number given 

 by Boulenger, while the subcaudals number five less, or 140. This again is one 

 of the rarest of west Javan snakes. 



Gonyosoma oxycephala (Boie). 

 BoiE, Isis, 1827, p. 537. Boulenger, Cat. snakes Brit, nms., 1894, 2, p. 56-57. 



Type locality: — Java, collection of Reinwardt. 



This beautiful serpent is not uncommon about Buitenzorg. Four speci- 

 mens were caught during March, 1907; and Bryant also took several specimens 

 in or near Buitenzorg and Depok. During the daytime this .species seems to 

 spend much of its time tightly coiled up in trees; but if disturbed it will become 

 extremely aggressive, and can move and strike with wonderful rapidity. It 

 is a very quick-tempered snake. 



It is evident that the range of this species is either very incompletely known 

 as yet', or else the distribution took place at so remote a period that the form has 

 had time to die out in many areas. It is known from the eastern Himalayas, 

 Tenasserim, Philippines, the lower part of the Malay Peninsula, Borneo, Natuna, 

 and Java. 



