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



with them. Those I obtained from the latter islands only belong to 

 two distinct species, T. Cantori, Blyth, and T. mutabilis, n. sp., 

 but the number of specimens, particularly of the former species, 

 is very great. An idea of this may be formed from the fact that 

 my collector procured, within a comparatively short time, some 60 

 specimens of the former and about 30 of the latter species. For- 

 tunately these vipers do not seem to be as dangerous as their allies 

 usually are. I shall speak of their poisonous properties further on, 

 when noticing the various species of the genus Trimeresurus. 



T. Cantori is also common at the Andamans, but T. mutabilis 

 seems to be there much rarer. Beside these two, a third species 

 is to be met with at the Andamans ; it was called T. porphyraceus 

 by Blyth, and also does not appear to be common. It seems 

 to be sufficiently distinct from either T. carinatus and purpureus, 

 with which it has been considered as identical by different herpe- 

 tologists. 



The following species* have up to the present been observed from 

 the Andamans. 



Amphibia. 



1. JRana gracilis, Wiegm., var. Andamanensis. 



2. Bufo melanosticus, S c h n e i d. 



Reptilia. 



3. Hydrosaurus salvator, L a u r. 



4. Gecko stentor, Cant. 



5. „ verus, Men*. 



6. Plielsuma Andamanense, Blyth. 



7. Peripia Cantori, G ii n t h. 



8. Hemidactylus frenatus, S c h 1 e g. 



9. ,, maculatus, D. and Bib. 



10. Cy r tod acty his rubidus, (Puellula rubida, Blyth). 



* I will mark those species which have been recorded as occurring on the 

 islands, but of which I have not seen specimens, with an asterisk (*). I may 

 as well notice that the only species which have been described from these 

 islands are those by Blyth, (see Appendix in M o u a t ' s Adventures and 

 Eesearches among the Andaman islanders, &c, 1863, p. 364), by Theobald in 

 his Cat. of Burmese Reptiles, and some others by Steindachner, published 

 in the scientific results of the " Voyage of the Austrian Frigatte Novara," 

 Amphibia and Reptilia, 1865. 



