SNAKES. 7 
Var. 1. Like the preceding, but the upper and lower lips are 
dark, being very closely and minutely punctulated. 
Bothrops affinis, Gray, Brit. Mus. 1848. 
1. In spirits. Half grown. Berbice. Presented by Lady Essex. 
m,n. In spirits. Young. Tropical America. 
o. Inspirits. Young. Demerara. Presented by Lieut. Friend, 
N 
p. In spirits. Young. Tropical America. 
4, The ELecant rer dE Lance. Craspedocephalus elegans. 
Pale brown: back with a central series of oblong spots, and a 
series of small round spots on each side: head brown; crown with 
a dark streak on each side of the back of the neek; temple, side of 
face, the lips and under part pale, minutely punctulated ; temporal 
streak narrow, oblique, extending across the upper half of the series 
of scales above the hinder upper labial shields. 
a, 6. Inspirits. Adult and young. West coast of (North ?) America ? 
Presented by Capt. Sir Edward Belcher, C.B., R.N. 
*** Green, with yellow lateral streak. 
5. The GREEN FER DE Lance. Craspedocephalus bilineatus. 
Trigonocephalus bilineatus, Schlegel, R. S. ii. 540, t. 19, f. 7, 8. 
Cophias bilineatus, Pr. Max. Beytr. 37,483. Abbild. v. t. 6. 
Green-brown, varied beneath yellowish, compressed: scale very 
small, lanceolate, keeled, with a yellow line on the lower part of 
each side: lips yellow: temporal streak reddish: upper labial 
shields 7, the hinder one smaller than the lateral ones. 
Inhab. Brazils. 
2. TRrIMEsSURUS. 
Scales lanceolate, keeled: hinder labial shields small; head- 
scales convex or keeled’; superciliary shield single, half-ovate or 
linear. Confined to the Old World. Asia. 
Trimesurus, Gray, Zool. Misc. 48, 1842. Trimesurus sp., 
Lacep. Ann. Mus. iv. Bothrops, Sect. II., Wagler, Amph. 174, 
1830. Tropidolemus, Wagler, Amph. 175, 1830. 
* Second labial plate very high, forming the front of the suborbital 
pit: back uniform, with a white line on each side. Trimesurus. 
+ Superciliary shield half-ovate. 
1. The Green Trimesvrus. Trimesurus viridis, Lacep. Ann. 
Mus. iv. 19. Gray, Zool. Misc. 48. Cophias viridis, Merrem, 
