154. OXTEHOPUS. 10f> 



Clelia daudinii, Fitzing. N. Class. Sept. p. 55 (1826). 



Duberria plumbea, Fitzing. I. e. p. 56. 



Lycodon cloelia, part., Schleg. I. o. p. 114. 



BrachyrHton plumbeum, part., Dum. 8r Bibr. Tii. p. 1005 (1854). 



cloelia, Bum. Sf Bibr. t. c. p. 1007 ; F. MUll. Verh. Nat. Qes.. 



Basel, vi. 1878, p. 684. 

 Oxyrhopus plumbeus, Oilnth. Cat. p. 189 (1868), and Proc. Zool. 



Soc. 1859, p. 414; Garm. Proc. Amer. Philos. Soc. xxiv. 1887, 



p. 285. 

 cloelia, GUnth. 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. 

 Bracbyrhyton cloelia, part., Jan, Icon. OSn.'85, pi. i. fig. 1 (1870). 

 plumbeum, Jan, I. e. fig. 3. 



Eye rather small, its diameter about one third the length of the 

 BDOut in the adult; snout rounded, scarcely projecting. Eostral 

 broader than deep, the portion visible from above measuring one 

 fourth to one third its distance from the frontal ; internasals much 

 shorter than the praefrontals ; 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 prseocular, not extending to the upper surface of the 

 head; two postoculars ; temporals 2+2 or 2+3; 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 milhm. ; tail 340. A larger specimen, with 

 injured tail, measures 2100 miUim. to vent. 



Mexico and Central America ; Tropical South America ; Lesser 

 West Indies. 



A. Scales in 19 rows. 



0. 5 (V. 237 ; 0. 81). Guatemala. Institute of Jamaica 



[P.]. 

 6. Yg. (V. 233 ; 0. 82). Panama. Zoological Society. 



c. Yg. (V. 224; C. 93). Rosario de Cucuta, Mr. 0. Webber [0.]. 



Colombia, 

 d cJ (V. 211; C. 79). Guavaquil. H. B. James, EscJ. [P.\ 



e,f. 2 (V.210; C. 85) Moyobamba, N.E. Mr. A. H. Rofi' [0.]. " 



&yg.fV.203;C.91). Peru. 



^. t? (V. 214; C. 73). Peru. Warsaw Museum [P.], 



h. S (V- 220 ; C. 90). Caracas. 

 i. tJ (V. 206; C. 76). Berbioe. 

 k. Yg. (V. 211 ; C. 71). Demerara, Mr. Snellgrove [C], 



1. Yg. (V. 208 ; C. 85). Surinam. 



