SNAKES. 115 
ADDITIONS. 
Page 4. CrasPEDOCEPHALUS, add as synonym 
Trigalus sp., Rafin. Anal. Nat. 77, 1815. 
Page 9, add 
Trimesurts ? erythrurus. ‘“ Trigonocephalus erythrurus, Can- 
tor, Proc. Zool. Soc. 1839, 31. 
“ Bright green above, with ovate, keeled, slightly imbricate 
scales; the tail cinnamon-red, with smooth imbricate scales; the 
abdominal surface greenish yellow, enclosed on the sides by a black 
serrated line. 
“ Inhab. the Delta of the Ganges.” Cantor. 
TRIMEsURUS ? mucrosquamatus. ‘“ Trigonocephalus mucro- 
squamatus, Cantor, Proc. Zool. Soc. 1839, 32. 
* Above brownish gray, with black-edged rings; scales oval, 
half keeled, imbricate ; beneath whitish, black-dotted, 219+ 91. 
“Inhab. Naja Hills, Assam.” Cantor. 
I have not been able to see either of these species. 
Page 10. Trimesurus strigatus, add 
a, b. In fluid. Madras. Presented by J. C. Jerdon, Esq. 
Page 12. Arropos, add 
? Atropos, Rafin. Anal. Nat. 77, 1815. 
Page 14. TriconocerHatus Halys, add 
Bonaparte, Mem. Acad. Turin, ii. 1839, 35. T. carayanus, 
Kichwald, Z. 8S. 
Page 15. TriconocepHatus Hypnale, add 
b. In fluid. Ceylon. Presented by A. Paul, Esq. 
Page 15. Cencuris, add 
Tip of tail with several rows of scales beneath. 
