71. LEPTOPHIS. 107 
Scales all except the outer row strongly 
Keelediig os ets a'ed Sasa eiehetete|< 424-< 11. lhocercus, p. 113. 
B. Scales in 15 rows, smooth ; ventrals not angulate laterally. 
12. orton, p. 114. 
C. Scales in 13 rows, all except the outer row keeled. 
13. urostictus, p. 114. ° 
1. Leptophis xruginosus. 
Leptophis eruginosus, Cope, Journ. Ac. Philad. (2) viii. 1876, 
p. 152; Giinth. Biol. C.-Am., Rept. p. 150 (1894). 
Philothamnus eruginosus, Cope, Proc. Amer, Philos, Soc. xxiii. 
1886, p. 279. 
Nasal not elongate ; loreal present, subquadrate ; preocular 
scarcely reaching frontal; two postoculars; temporals 14+2; nine 
upper labials, fifth and sixth entering the eye ; posterior chin-shields 
longer than the anterior. Scales in 15 rows, not keeled, but finely 
striate. Ventrals faintly angulate laterally, 146; anal divided; 
subcaudals 142. Golden brown above ; vertebral line (one row of 
scales) yellow on the anterior half of the body; a black streak on 
each side of the head behind the eye; beneath blue, fading to 
yellowish on the gular region. 
Total length 405 millim.; tail 155. 
Costa Rica. 
2. Leptophis depressirostris. 
Philothamnus depressirostris, Cope, Proc. Ac. Philad. 1860, p. 557. 
Leptophis depressirostris, Giinth. Biol. C-Am., Rept. p. 130 (1894). 
Rostral twice as broad as deep ; frontal as long as the parietals ; 
nasals elongate; loreal present, thrice as long as deep; one pra- 
and two postoculars; nine upper labials, fifth and sixth entering 
the eye. Scales smooth, in 15 rows. Above uniform deep green ; 
an inconspicuous temporal streak; a very delicate black line 
traverses the centre of each of the two rows of scales that bound 
the vertebral row ; upper lip and lower parts light green. 
Total length 650 millim. 
Cocuyas de Veraguas, Colombia. 
3. Leptophis modestus. 
Ahetulla modesta, Giinth. Ann. § Mag. N. H. (4) ix. 1872, p. 26, 
pl. vi. fig. C. 
Philothamnus modestus, Cope, Proc. Amer. Philos. Soc, xxiii. 1886, 
p- 279. 
Leptophis modestus, Giinth. Biol. C.-Am., Rept. p. 129, pl. xlviii. 
(1894). 
Eye a little shorter than its distance from the nostril. Rostral 
broader than deep, just visible from above; internasals shorter than 
