142 Indian and Malayan Amphibia and Reptilia. [No. 2, 



76. Trimeresurus erythrurus, Cant. 



77. „ carinatus, Gray. 



78. „ porphyraceus, B 1 y t h. 



79. ,, mutabilis, n. sp. 



80. ,, Cantoris, B 1 y t h. 



81. ,, convictus, n. sp. 



82. Halys Hymalayanus, G ii n t h. 



83. Daboia Russelii, Sliaw. 



GlIELONIA. 



84. Emys crassicollis, Bell. 



AMPHIBIA. 

 BATRACHIA. 



Fam. Eanidje. 



1. Bana gracilis, Wiegm. (G u n t h. 1. cit. p. 409.) 

 This species is very common in the Sundarbans, all along the- 

 coast of Arracan, near Rangoon, Moulmein, Tenasserim, the 

 Welesley Province, Penang, and apparently also at the Andamans 

 and Nicobars ; it usually does not hesitate to take to sea or brackish 

 water, and is, as a rule, a true literal species. 



In specimens from all these localities the coloration is typical, the 

 spots on the back,* the band between the eyes, and the spots on the 

 lips are never absent, there is, however, no rule as to the presence or 

 absence of the pale dorsal streak ; generally it is present and occa- 

 sionally (on some specimens from Eangoon and Penang), almost as 

 wide as the interspace between the eyes. The body of the largest 

 specimen, I have collected at Akyab (Arracan coast), measured about 

 2£ inches in length ; this specimen has four ruddy spots on the back 

 between the shoulders, forming a cross. Specimens with the body 2 

 inches long are comparatively very common. The external surface 

 of the vocal region is black in the male. The length of the snout 

 slightly varies, but it is usually conspicuously attenuated, apparent- 

 ly more so in the males than in the females. In specimens with a 

 narrower snout, the ridges of the vomerine teeth almost touch each 



* In young specimens there is only one transverse somewhat undulating 

 dark band above the middle of the body ; the skin is generally distinctly 

 tubercular. 



