72. UROMACER. eis 
outer keeled; smooth on the tail. Ventrals 163. Olive-green 
above, the keels black; vertebral scales dotted with black on the 
sides ; a black streak on each side of the head, behind the eye ; pale 
green ‘beneath, 
Bogota. 
72. UROMACER. 
Dendrophis, part., Schleg. Phys. Serp. ii. p. 220 (1837 
Uromacer, Dum. S Bibr. Mém, Ac, Se, xxiii. 1855, p. ‘478, and Erp. 
Gén. vii. p- 719 (1854); Jan, Elenco sist. Ofid. p. 87 (1863). 
Aheetulla, part., Giinth. Cat. Col. Sn. p. 151 (1858). 
Maxillary teeth 16 to 20, increasing in size posteriorly, the two 
last very large and separated from the others by a wide interspace ; 
anterior mandibular teeth longest. Head elongate, distinct from 
neck ; eye moderate, with round pupil, Body slender, very 
elongate; scales narrow, lanceolate, smooth, with apical pits, in 17 
or 19 rows; ventrals without or with a very obtuse lateral keel. 
Tail very long ; subcaudals in two rows. 
Santo Domingo, West Indies. 
Synopsis of the Species. 
Snout twice as long as the eye, truncate at the 
end; rostral twice as broad as deep ; scales 
in 17 rows; ventrals 163-176 .......... 1. catesbyt, p. 115. 
Snout twice and a half as long as the eye, 
subacuminate ; rostral as broad as deep ; 
scales in 17 rows; ventrals 182-193 .... 2. frenatus, p. 116. 
Snout thrice as long as the eye, acutely 
pointed; rostral deeper than broad ; scales [p. 116. 
in 19 rows; ventrals 192-210 .......... 3. oxyrhynchus, 
1. Uromacer catesbyi. 
‘Dendrophis catesbyi, Schley. Phys. Serp. ii. p. 226 (1857). 
Uromacer catesbyi, Dum. § Bibr. vii. p. 721, pl. lxxxiii. fig. 2 
(1854) ; Jan, Icon, Gén. 38, pl. iii. fig. 2 (1869). 
Aheetulla catesbyi, Giinth. Cat. p . 154 (1858). 
Leptophis catesbyi, Cope, Proc. ve Philos, Soc. xviii. 1879, p. 275. 
Snout about twice as long as the eye, much depressed and 
truncate at the end. Rostral twice as broad as deep, scarcely 
visible from above; internasals longer than broad, shorter than the 
preefrontals ; frontal twice as long as broad, as long as its distance 
from the end of the snout, slightly: shorter than the parietals nasal 
long and narrow, divided or semidivided ; prefrontal in contact with 
the second labial ; a small loreal between the’ preeocular and the 
prefrontal; one or two pre- and two or three postoculars ; tem- 
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