73. HTPsiRHrxcnrs. 11 



Ahaetulla oxyrhyncha, Giinth. Cat. p. 154 (1858). 



i>his oxyriiyuchus, Cope, Proc. Am. Philos. Soc. xviii. 1879, 

 p. -'73. 



Head very long and narrow, body extremely slender ; snout 

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

 r;d deeper than broad, scarcely visible from above ; internasals 

 much longer than broad, shorter than the praef rontals ; 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 semidivided ; prsefrontal in contact with the second 

 labial ; a small loreal between the praeocular and the pnefrontal : 

 one prae- 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. Scales hi 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 \\\\ m tail 550. 



Santo Domingo. 



a. (V. 210 ; C. 185). S. Domingo. 



b. <* (V. 210 ; C. 1*5). Cape Hayti. Hr. Rolle [C.]. 



c. d (V. 1U7; C. L>00). - ? 



73. HYPSIRHYNCHUS. 

 Hypsirhynchus, Giinth. Cat. Col. Sn. p. 48 (1858). 



Maxillary 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 subelliptic pupil. Body cylindrical ; scales smooth, with 

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

 caudals in two rows. 



Santo Domingo, West Indies. 



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



Hypsirhynchus ferox, Giinth. 1. e. p. 49; Cope, Proc. Ac. Phffad. 

 '1-71, p. 218, and Proc. Amer. Philos. Soc. xviii. 1879, p. 273; 

 Pitcher, Jahrb. Hamb. Wist. Anst. \. 1*88, p. 41. 



scalar Ls, Cope, Proc. Ac. Philad. 18(5:.', p. ~'2 ; Gartn. Proc. Am 

 t. Soc. xxiv. 1887, p. 284. 



Snout rather elongate, acuminate, obliquely truncate, strongly 

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

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

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



