SNAKES. 5 
Synon.—Craspedocephalus sp., Kuhl, 18. Fitz. N. Class. Rept. 
62, 1826. Bothrops, Sect. I., Wagler, Serp. Braz. 50. | Amph. 
174, 1830. Bothrops, Gray, Zool. Mise. 47, 1842. _ Trigono- 
cephalus sp., Oppell, Rept. 65. Schlegel, P. S.527. Vipera sp., 
Merrem, Tent. 154. Gray, Ann. Phil. 1825. Anatomy, Schlegel, 
P. S.535. Meekel, Arch. i. t.1, f.1. Duvernoy, Ann. Sct. Nat. 
weve 10, f.G; xxx. ¢. 14. 
The species of this genus are very difficult to separate, espe- 
cially when they have been kept in spirits for some time. In the 
‘ Zoological Miscellany’ I attempted to divide them by the form of 
the second labial shield and head-shield, but these characters ap- 
pear to vary with the individual specimens. 
* Body olive or gray; labial plates 9 or 10 on each side, the 3 or 4 
hinder ones smaller. 
1. The Jarnaraca. Craspedocephalus Brasiliensis. La Brasili- 
ense, Lacep. Quad. Ovip. ii. 119,t. 4, f.1. Vipera Brasiliensis, Latr. 
Rept. iv. 7. Cophias Jararaca, Neuwied, Beitr. 468. Abbild. viii. 
t. 5. C.atrox, Neuwied, Abbild. vii. t. 3. Bothrops Megera, 
Wagler, Serp. Braz. t.19. _B. leucostigma, Wagler, S. B. t. 21, 
f.1. B. furia, Wagler, S. B.t.20. B. tesselatus, Wagler, S. B. 
t.21, f.2. B. teniatus, Wagler, S. B. t. 21, f. 3. Trigonoce- 
phalus Jararaca, Schlegel, Phys. Serp, 532, t. 19, f.1,2. Crasp. 
Jararaca, Fitz. N. Class. Rept. 62. 
Dark olive-yellow and pale olive marbled; beneath yellow, 
olive marbled: head with symmetrical yellow lines: upper labial 
shields 10 ; the anterior upper lateral plate large ; the second small ; 
the third, fourth and fifth large, yellow; the seventh, eighth, ninth 
and tenth smaller, olive; the anterior lower labial shield yellow, 
varied with a narrow yellow streak on the temple from the back edge 
of the eye. 
aand 6. In spirits. Adult. Brazil. 
2. The Fer pe Lance. Craspedocephalus lanceolatus, Fitz. 
N. Class. Rept. 62. Trigonocephalus lanceolatus, Oppell, Rept. 66. 
Schlegel, P. S. 537, t. 19, f. 3,4. Vipera cerulescens, Laur. Syn. 
101. Coluber glaucus, Gmelin, S. N. i. 1092. Le fer de lance, 
Lacep. 20, ii. 121, t.5,f.1.  Duvernoy, Ann. Sect. Nat. xxvi. t. 
10, f. 6, and xxx. t.14. Coluber Megera, Shaw, Zool. iii. 406. 
Cophias lanceolatus, Merrem, Tent. 15. Trigonocephale des Antilles, 
Moreau de St. Jones. 
Olive, darker cross-banded, beneath whitish, very minutely 
punctated ; scales narrow, strongly keeled: head brown: upper la- 
bial shields 8, the two or three hinder ones smaller than the middle 
B3 
