SLAUCONIA. 



63 



51 times in the total length ; length of tail 13 times. Brown 

 above, each scale darker in the centra ; whitish inferiorly. 



Total length 205 millim. 



Venezuela. 



a. Ad. Tachira, Venezuela. (Type.) 



5. Glauoonia albifrons. 



Stenostoma albifrons, Waffl. in Spiv, Serp. Bras. p. 68, pi. xxv. fig. 3 

 (1824) ; Dim. 8f Bihr. yi. p. 327 (1844) ; c^Orb. Voy. Am. Mer. 

 v., Rept. p. 9, pi. vi. figs. 1-6 (1847) ; Jan, Icon. Gin. p. 84, 1. 2, 

 pis. V. & vi. fig. 1 (1864) ; Cope, Journ. Ac. Philud. (2) viii. 1876, 

 p. 128; Bocourt, Miss. 8c. Mex., Rept. p. 505, pi. xxix. fig. 10 (1882). 



Typhlops albifrons, Gray, Giiff. A. K. ix. Syn. p. 77 (1831). 



undecimstriatus, Schleg. Ahbild. p. 36 (1844). 



tesselatum, Tschudi, Faun. Per., Herp. p. 46 (1845). 



Epictia undecirastriata. Gray, Cat. Liz. p. 140 (1845). 



Stenostoma fallax, Peters, Mon. Berl. Ac. 1857, p. 402. 



Sabrina tessellata, Girard, Proc. Ac. Philad. 1857, p. 181. 



Stenostoma melanosterna, Cope, Proc. Ac. Philad. 1862, p, 350. 



phenops, Cope, Journ. Ac. Philad. (2) viii. 1876, p. 128. 



Snout rounded ; supraocular present, large, in contact with or 

 separated from the first labial ; rostral extending hardly to the 

 level of the eyes ; nasal completely divided ; ocular bordering the 

 lip, between two labials ; six lower labials. 14 scales round the 

 body. Diameter of body 45 to 55 times in the total length ; length 

 of tail 15 to 21 times. Brown, lighter beneath, each scale with 

 lighter outer edges, forming more or less distinct longitudinal lines ; 

 forehead, lips, and end of tail usually white. 



Total length 275 millim. 



Tropical America, from Tehuantepec and the' Lesser Antilles to 

 Peru and Argentina. 



lanteneo. 



Dr. A. 0. BuUer [0.]. 

 F. D. Godman & 0. 



Salvin, Esqs. [P.]. 

 Ml'. Hoege [C.]. 



Sii' A. Smith [P.], 



S. Moore, Esq. [P.l 

 Dr. G. F. Grillo rO.]. 

 W. Bates, Esq. \G.\ 

 A. H. Roff, Esq. [0.]. 

 C. Darwin, Esq. [P.]. 

 Prof. W. Nation [P.]. 



R. Havers, Esq. [P.]. 

 E. Cook, Esq. [P.]. 



