73. nri'siRHrxcnus, 117 



Ahfetulla oxyrhynclia, Gilnth. Cat. p. 151 (1858). 

 Leptophis oiyrliyucluis, Cope, Pruc. Am. Phllos. Soc, xviii. 1879, 

 p. 273. 



Head very long aud narrow, body extremely slender ; snout 

 acutely pointed, strongly projecting, about thrice as long as the eye. 

 llostral deeper than broad, scarcely visible from above ; interuasals 

 much longer than broad, shorter than the proefrontals ; frontal 

 twice and a half as long as broad, shorter than its distance from the 

 end of the snout or than the parietals ; nasal long and narrow, 

 divided or semidividcd ; praifrontal in contact with the second 

 labial ; a small loreal between the prajocular and the pn^jfrontal : 

 one prte- and two postoculars; temporals 1 + 2 ; eight upper labials, 

 third, fourth, and fifth entering the eye ; five lower labials in 

 contact with the anterior chin-shields, which are much shorter than 

 the posterior. 8cales iu 19 rows. Ventrals 192-210 ; anal divided ; 

 subcaudals 185-202. Emerald-green above, pale green below ; a 

 white and yellow lateral streak, running along the lower series of 

 scales ; a black line, edged with white below, on each side of the 

 head, passing through the eye. 



Total length 1270 millim. ; tail 550. 



Santo Domingo. 



a. 2 (V. 210 ; 0. 185). S. Domingo. 



b. c? (V. 210; C. 185). Cape Hayti. Hr. Rolle [C.]. 



c. d {y. 197; 0.200). ? 



73. HYPSIRHYNCHUS. 



H3^psirhynchus, Gilnth. Cat. Col. S?i. p. 48 (1858). 



Maxillarj' teeth 14 or 15, slightly increasing in size posteriorly ; 

 anterior mandibular teeth much larger than the posterior. Head 

 slightly distinct from neck ; eye moderate or rather small, with 

 round or suboUiptic pupil. Body cylindrical ; scales smooth, with 

 apical pits, in 19 rows; ventrals rounded. Tail moderate; sub- 

 caudals in two rows. 



kSanto Domingo, West Indies. 



1. Hypsirhynchus ferox. (Plate VI. fig. 1.) 



Hypsirhynchus ferox, Gi'mth. I. c. p. 49; Cope, Proc. Ac. PhiJnd. 



1871, p. 218, and Proc. Amer. Philos. Soc. xviii. 1879, p. 273; 



Fischer, Jakrh. Hamh. Wiss. Anst. v. 188S, p. 41. 

 scalaris, Cope, Proc. Ac. Philad. 1862, p. 72 ; Garm. Proc. Am 



Philos. Soc. xxiv. 1887, p. 284. 



Snout rather elongate, acuminate, obliquely truncate, strongly 

 projecting, and slightly turned up at the end. Rostral broader than 

 deep, not or but scarcely visible from above ; internasals as long as 

 broad or a little longer, shorter than the praefrontals, which may be 



