~ 
154, oxyrHopPts. 109° 
Clelia daudinii, Fitzing. N. Class. Rept. p. 55 (1826). 
Duberria plumbea, Fitzing. 1. c. p. 56. 
Lycodon cleelia, part., Schleg. J. c. p. 114. 
Brachyruton plumbeum, part., Dum. § Bibr. vii. p. 1005 (1854). 
— cleelia, ? ag §& Bibr. t. c. p. 1007; F. Mill. Verh. Nat. Ges. 
Basel, vi. 1878, p. 684. 
Oxyrhopus plumbeus, Giinth. Cat. p. 189 (1858), and Proc. Zool. 
oc. 1859, p. 414; Garm. Proc. Amer, Philos. Soc. xxiv. 1887, 
P 
» 285. 
— clelia, Giinth. Cat. p. 189; Peters, Mon. Berl, Ac. 1873, p. 607 ; 
Cope, Bull. U.S. Nat. Mus. no. 32, 1887, p. 76. 
Scolecophis scytalinus, Cope, Proc. Ac. Philad. 1866, p. 320. 
Brachyrhyton cleelia, part., Jan, Icon. Gén. 35, pl. i, fig. 1 (1870). 
plumbeum, Jan, /. c. fig. 3. 
Eye rather small, its diameter about one third the length of the 
snout in the adult; snout rounded, scarcely projecting. Rostral 
broader than deep, the portion visible from above measuring one 
fourth to one third its distance from the frontal; internasals much 
shorter than the prefrontals ; frontal a little longer than broad, as 
long as or a little longer than its distance from the end of the snout,. 
shorter than the parietals ; loreal usually longer than deep, sometimes 
absent; one preocular, not extending to the upper surface of the 
head ; two postoculars; temporals 2+ 2 or 243; seven (exception- 
ally eight) upper labials, third and fourth (or fourth and fifth) 
entering the eye; four or five lower labials in contact with the 
anterior chin-shields, which are as long as or longer than the 
posterior. Scales in 17 or 19 rows. Ventrals 198-237; anal 
entire ; subcaudals 64-93 pairs. Adult uniform dark grey, olive- 
grey or blackish above, yellowish white beneath, the subcaudals 
often spotted or margined with blackish. Young sometimes 
blackish above, but usually pale brown or red, with or without a 
dark brown dot on the end of each scale; head and nape blackish, 
with a more or less broad yellow area across the occiput and temples. 
Total length 1550 millim.; tail 340. A larger specimen, with - 
injured tail, measures 2100 millim. to vent. 
Mexico and Central America; Tropical South America; Lesser 
West Indies. 
A. Seales in 19 rows. 
a. 9°(V. 237; C.81). Guatemala. Tet of Jamaica. 
b. Yg. (V. 233; C. 82). Panama, Zoological Society. 
c. Yg. (V. 224; C. 98). Rosario de Cucuta, Mr. C. Webber [o. 
Colombia. 
d. & (V. 211; C.79). Guayaquil. H. B. James, Esq. [P.', 
e, f. 2 (V.210; C.85) Moyobamba, N.E. Mr. A. H. Roff [C.]. © 
& yg. (V. 203; C. 91). Peru. 
3 (V. 214; 0.73), Peru. Warsaw Museum [P.}. 
3 (V. 220; C.90). Caracas. 
3 (V. 206; C. 76). Berbice. 
Yg. (V.211; C.71). Demerara, Mr. Snellgrove [C.]. 
Yg. (V. 208; C. 85). Surinam. 
