86 SYNOPSES AMi DESCRIPTIONS'. 



pupil round. Internasal of each side united with the anterior portion of 1 

 the nasal. Rostral broad, low, blunt-angled between the internasals. 

 Prefrontals broad, in contact with the posterior portion of the second 

 labials. Frontal hexangular, broader forward, hinder angle more acute. 

 Parietals short, broad. No loreal. One anteorbital, beneath the supra- 

 ciliary, not in contact with the nasal. Two post orbitals, lower small. 

 Temporals 1-f 2. Labials seven, third and fourth in orbit, fourth to sixth 

 large, and nearly equal in size. Infralabials seven, second smallest, fifth 

 largest. Submentals two pairs, posterior small. Scales smooth, broad, 

 rounded at apex, lateral as broad or broader than long. Ventrals 171 — 175 

 (165—175). Anal bifid. Subcaudals 35—40 pairs (35—43). 



Light yellowish, to dark olivaceous, brown, base and sides of each scale 

 darker. Belly yellowish to olivaceous, mottled with olive, bases of ven- 

 trals darker. Throat, chin, and lips lighter to white or yellow. Central 

 America. 



Stexorhina quixquelineata. 



MicRornis quinquelineatus Hallowell, 1854, Pr. Ac. X. Sc, Phil, 97. 



"Head of moderate size, short, depressed in the middle, covered with 

 nine plates; snout rounded; nostrils between the nasal and anterior frontal 

 plates; a frenal; one ante ocular; two post oculars; seven superior labials, 

 eye over third and fourth; eyes of moderate size, pupil round; supraciliary 



plate not projecting over the eye; tail of moderate length Head, 



body, and tail above ash color; five dark blue stripes extending from the 

 occiput to the base of the tail, the three intermediate ones broader than 

 the lateral; the other stripes prolonged upon the tail, the middle one to 

 near its extremity; 17 rows of smooth quadrangular scales; 170 abdominal 

 scuta; two bind preabdom ; 33 subcaudal." Honduras. 



Taxtilla. 



Baml& Girard, 1853, Cat. X. A. Serp., 131. 



Body slender, subcylindrical ; head indistinct, depressed; tail rather 

 short, tapering. Eye small, pupil round. Nine head-shields. Nasal 

 divided, nostril in anterior part, sometimes entire. No loreal. Orbitals 

 1 — 1 to 2. Scales smooth, lustrous, in 15 rows. Anal divided or entire. 

 Subcaudals in two rows. 



