108 conjBEiDJs. 



just reachiDg the upper surface of the head but separated from 

 the frontal ; two postoeulars; temporals 2 + 3 ; eight upper labials, 

 fourth and fifth entering the eye ; four lower labials in contact with 

 the anterior chin-shields, which are as long as the posterior. 

 Scales in 19 rows. Ventrals 190-205 ; anal entire ; subcaudals 

 66-85 pairs. Dark brown or blackish above, with yellowish cross- 

 hars widening towards the belly and usually more or less inter- 

 rupted on the back; yellow occipital collar, if present, narrow; 

 yellow beneath, posterior ventrals and subcaudals sometimes spotted 

 with blackish. 



Total length 790 millim. ; tail 170. 



Brazil. 



a. c? (V. 197; 0. 74). Porto Real, Prov. Eio M. Hardy du Drfeeuf 



Janeiro. [0.1. 



b. Yg. (V. 190 ; 0. 74). Rio Grande do Sul. Dr. H. v. Ihering [0,]. 



10. Oxyrhopus fitzingeri. 



Siphlophis fitzingeri, Tschudi, Faun. Per., Herp. p. 56, pi. viii. 



(1846). 

 Oxyrhopus fitzingeri, Jan, Elenco, p. 93 (1863), and Icon. 04n. 35, 



pi. V. fig. 1 (1870). 



Eye moderate, its diameter about half the length of the snout ; 

 snout rounded, slightly projecting. Rostral broader than deep, the 

 portion visible from above measuring about one fourth its distance 

 from the frontal ; internasals much shorter than the prsefrontals ; 

 frontal once and one third as long as broad, as long as its distance 

 from the end of the snout, shorter than the parietals ; loreal much 

 longer than deep ; one praeocular, just reaching the upper surface 

 of the head and widely separated from the frontal; two post- 

 oculars; temporals 2 -|- 3; eight upper labials, fourth and fifth 

 entering the eye ; four or five lower labials in contact wjth the 

 anterior chin-shields, which are as long as the posterior. Scales in 

 19 rows. Ventrals 232-286 ; anal entire; subcaudals 77-81 pairs. 

 Yellowish above, with numerous small black spots irregularly 

 arranged ; upper surface of head speckled with black ; a large black 

 hlotch on the nape ; uniform yellowish beneath. 



Total length 980 miUim. ; tail 190. 



Peru. 



/?.? (V. 232; 0.81). Peru. Prof. Nation [P.]. 



11. Oxyrhopus cloelia. 



Coluber cloelia, Daiid. Rept. vi. p. 330, pi. Ixxviii. (1803). 



plumbeus, Wied, Reise n. Bras. i. p. 95 (1820), Beitr. i. 



p. 314 (1825), and Ahbild. (1829) ; 8chleg. Phys. Serp. ii. p. 152, 



pl.vi. figs. 3 &4(1837)._ 

 Natrix occipitalis, iVagl. in Spiv, Serp. Bras. p. 21, pi. vi. fig. 2 



(1824). 



