WENONA. 139 



Genus "WEIVOIVA, Baird & Girard. 



Gen. Char. Head small, conical, slightly swollen on the tempo- 

 ral region, though not separated from the body by a contracted neck. 

 Snout protruding beyond the lower jaw. Mouth moderately cleft. 

 Eyes very small. A broad and short vertical ; two or three pairs of 

 frontals. Occipitals very small, the size of the superciliaries. One 

 nasal, a posterior one; nostril between it and the prefrontals, which 

 extend over the place occupied elsewhere by the prenasal. Loral 

 united with postfrontals or separated. One very large anteorbital ; 

 two or more postorbitals. Numerous small temporal shields. Scales 

 very small, lozenge-shaped, smooth, in 45 dorsal rows. Postab- 

 dominal scutella not divided. Subcaudal all entire. Unicolor. 

 Tail proportionally short, stout, terminating blunt. 



Syn. Weno7ia, B. & G. Proc. Acad. Nat. Sc. Philad. VI, 1852, 176. 



1. 'Wenona pluillbca, B. & G. — Uniform bluish lead-color above ; 

 uniform yellowish white beneath. Three pairs of frontal plates. JMiddle 

 pair united with the loral, and thus extending to the labials. Labials not 

 entering; into the orbit. Dorsal scales in 45 rows. 



Syn. Wenona plumhea, B. & G. Proc. Acad. Nat. Sc. Philad. VI, 1852, 176. 



Upper surface of head slightly convex, snout rounded and prond- 

 nent. Vertical plate as broad as long, obtuse angled anteriorly, 

 rounded posteriorly. Postfrontals small and trianguhir, the sma]les\t 

 of all the frontals. Middle frontals subangular, transversely elon-\ 

 gated, reaching the labials at the commissure of the 2d and 3d, \ 

 occupying the place of the loral. Prefrontals angular posteriorly, 

 rounded anteriorly, reaching the first labial, and occupying the 

 place of the prenasal. Eostral broad and large. Postnasal subtri- 

 angular, elongated, apex directed backwards. Nostril vertically 

 elongated, situated between the lateral expansion of the prefrontals 

 and the postnasal. Occipitals quite small, and united in one plate, 



