1873.] F. Stoliczka — Malayan JReptilia and Ampliibia. 115 



56. Psammodynastes pulverulentus. — Penany. 



57. „ pictus. — Sumatra. 



(Colub. Snakes, p. 251). Exactly agreeing with Gunthcr's description. 



58. Lycodon auJicus. — Penany. 

 59.* Ophites suhcinctus. — Sumatra, 

 60.* „ alhofuscus. — Sumatra. 



61. JBunyarus fasciatus. — Penany. 



62. Adeniophis* {CallopJiis) intestinalis. — Penany. 



„ „ hiviryatus. — Penany and Sumatra. 



63. . Xenopeltis unicolor.— Sumatra. 



64. Pytlion reticulatus. — Penany. 



65. Hypsirliina enhydris. — Penany. 



All specimens have an almost continuous dark line along the middle of the lower 

 side. 



QQ. ilypsirldna plumhea. (Very variable). — Penany. 

 67.* „ \Perani(i\ alternans. — Sumatra. 



68. Fordonia unicolor. — Sumatra. 



(The young are brownish olive with numerous dark dots). 



69. Ce^'herus i^liyncliops. — Penany. 



70. Somalopsis hucata. — Penany. 



71. mpistes hydrinus. — Penany. 



72. Hydropliis rohustus. — Sumatra. 



73.* Trimeresurus Wayleri. — Penany and Sumatra. 

 74. „ erythrwms. — Penany. 



^AJSX ruscA. 



Comp. Anderson in P. Z. S. for 1871, p. 197. 



Kufuos brown above, with a pale longitudinal dorsal streak, broad in 

 front, narrow towards tlie posterior end ; limbs above somewhat indistinctly 

 variegated and banded with darker brown, posterior side of femora with 

 closer and darker variegations. Lower side uniform whitish, except a few 

 dark spots on the lower lip, but the front-end of the lower lip has a con- 

 spicuous white spot, as stated by Blyth. 



The nostrils are much nearer the snout than the eye ; the tympanum 

 is smaller than the eye, but quite distinct in a nearl}^ full grown specimen ; 

 skin above and at the sides of the belly with few scattered slightly enlarged 

 tubercles ; lower side perfectly smooth. The first and second fingers are 

 slightly shorter than the third and fourth respectively ; the second is 

 shortest. The metatarsus has a single, inner, marginal, elongated tubercle. 

 The first and fifth toes are fringed externally, but the tarsus has no fold. 

 The toes are entirely webbed and their tips very distinctly swollen. 



The length of the body equals the distance from the vent to half the 

 length of the tarsus. 



* See Peters in Monatsb. Berlin Aknd., 1871, p. 57^. 

 15 



