180 COLTJBEIB^. 



Coi-onella p;odmaiii, Ourith. Biol. C.-Am., Bept. p. 110, pi. xxxix. 

 %. B (1893). 



Eye rather small ; snout very short. Eostral broader than deep, 

 scarcely visible from above ; internasals much broader than long, 

 about half as long as the praefrontals ; frontal once and one third to 

 once and a half as long as broad, a little longer than its distance 

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

 or longer than deep ; one prae- and two postoculars ; temporals 

 1+2; eight upper labials, fourth and fifth entering the eye ; four 

 lover labials in contact with the anterior chin-shields, which are as 

 long as or a little longer than the posterior. Scales in 21 rows. 

 Ventrals 168-176; anal divided; subcaudals 72-92. Length of 

 tail three and a half to four times in the total length. Pale brown 

 above, with three or five dark brown longitudinal streaks ; head 

 dark brown, bordered with yellow spots posteriorly ; upper labials 

 dark brown with yellow spots ; yellowish beneath. 



Total length 445 millim. ; tail 130. 



Guatemala. 



a-d. d (V. 176, 173 ; C. 88, Duenas. Messrs. Salvin & Godman 

 02), 2 (V. 176 ; C. 72), & [C.l. (Types.) 



yg.(V. 170; 0.81). 



82. UEOTHECA. 



Xenodon, part., 8ehleg. Pliys. Serp. ii. p. 80 (1837). 



Urotheca, Bibr. in M. de la Sagra, Hist. Cuba, Bept. p. 217 (1843). 



Liophis, part., Bu7n. Sr Bibr. Erp. Oen. vii. p. 697 (1854) ; Giinth. 

 Cat. Col. Sn. p. 42 (1868) ; Bocourt, Miss. Sc. Mex., Bept. p. 633 

 (1886). 

 I- Pliocercus, Cope, Froc. Ac. Philad. 1860, p. 263. 

 -^ Elapochrous, Peters, Mon. Berl. Ac. 1860, p. 294. 



Cosmicsophis, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 289. 



Leiosophia, part., Jan, I. c. p. 320. 



Cyclagras, part.. Cope, Proc. Am. Pkilos. Soc. xxiii. 1886, p. 488. 



Maxillary teeth 11 to 14, increasing in size posteriorly, followed 

 after a short interspace by > two enlarged ones; mandibular teeth 

 suhequal. Head scarcely distinct from neck; eye moderate or 

 rather small, with round pupil ; usually one or more subocular 

 shields. Body cylindrical ; scales smooth, without apical pits, in 17 

 to 21 rows ; ventrals rounded. Tail long, thick throughout, ending 

 obtusely ; subcaudals in two rows. 



Cuba, Central and South America. 



Synopsis of the Species. 



I. Eye in contact with two labials; scales in 17 rows. 



A. Pour lower labials in contact with the anterior chin-shields. 



Anterior chin-shields much shorter than 



the posterior : temporals l-(-2 1. dumerilii, p. 181. 



Anterior chin-shields as long as the pos- 

 terior ; temporals 1 + 1 2. lateristriga, p. 181. 



