e 



1899.] KEPTILES OF THE MALAY PENINSULA AND SIAM. 675 



mark which shows the bright yellow ground-colour through breaks 

 in it and which does not join on to the dark upper parts, or else 

 this mark may be a duller brown and larger aud joined to the 

 dark upper parts either narrowly (only in the vertebral Une) or 

 broadly. 



Size. These five specimens varied from 265 to 293 mm. in total 

 length. 



Hab. Malay Peninsula, Sumatra, Java, Borneo. 



156. Calamaeia pavimentata D. & B. 



Calamaria pavimentnta, Blgr. Cat. Snakes, ii. p. 348; S. Flower, 

 P. Z. S. 1896, p. 886. 



M. Mouhot obtained a specimen of this snake in Siam and two in 

 the Laos Mountains ; these form the types of Calamarki slamensis 

 Giinth. In April 1898 I saw three more individuals from Penang 

 Hill, or.e caught ac aliout 800 feet, the others at about 2000 feet. 



Hab. Burma, Siam, Cochiuchina, Canton, Malay Peninsula, Java 



Series Opisthoglypha. 

 Subfamily Homalopsin^. 



157. Htpsiehina indica (Gray). 



Hypsirhina indica, Blgr. Cat. Snakes, iii. p. 4, pi. i. fig. i. 

 The only known specimens, the types in the British Museum, 

 are supposed to be from the Malay Peninsula. 

 Eab. Malay Peninsula ? 



158. Htpsiehina plttmbba (Boie). 

 Hypsirhina plumbea, Blgr. Cat. Snakes, iii. p. 5. 



Localities. The British Museum Catalogue mentions specimens 

 from Pachebone, Siam (Mouhot), and from Penaug (Cantor, Hard- 

 wicke). I obtained one near Taiping, Perak, in Dec. 1899 ; two 

 near Tahkamen, Siam, in March 1897 ; and one near Alor Star, 

 Kedah, in May 1898. 



HabiU. This snake apparently usually frequents freshwater- 

 ponds or rivulets, but one I found under a stone some little distance 

 from any water. When frightened, this species will bite fiercely 

 at anything within reach. 



Colour (in life). Above dark olive-brown, with small irregular, 

 scattered, black spots, and in one specimen (from Kedah) a series 

 of small black spots along the vertebral line of the neck, and a 

 black spot on either side of the head aljove the angle of the mouth. 

 Lips and whole lower surface bright chrome- or saiFron-yellow. A 

 dark brown zigzag median line uoder the tail. 



Size. An individual from Tahkaineu measured in total length 

 411 mm. 



Hub. Bui'ma, South China, Pormosa, Hainan, Siam, Malav 

 Peninsula, Java, Borneo, Celebes. 



