ARTICLE III. 
ON A NEW GENUS OF BOIDA FROM CUBA. 
BY EDW. HALLOWELL, M. D. 
[Read April 4, 1856.] 
FAM. BOIDA. GEN. NOTOPHIS HALLOWELL. 
Char. Nostrils opening in a single plate; head covered in its anterior half with sym- 
metrical plates, posteriorly with scales; upper and lower lips very slightly pitted; scales 
of the back and sides carinated; of the lower rows smooth; median row of scales of back 
and upper part of tail larger than the others, and bicarinated; ventral scutes very narrow ; 
those of tail in a single row; tail short. 
NOTOPHIS BI-CARINATUS. NOB. 
Char. Colour of a uniform red, lighter upon the cheeks and lips; Abdom. Scut. 204. 
Subcaud. 40: 26 rows of scales. Total length one foot, six inches, nine lines. 
Description. Head small, angular, slightly truncate, depressed, presenting upon its upper 
and anterior half nine distinct plates exclusive of the supra-orbitar, viz., two internasals, 
two fronto-nasals, and two pre-frontals; one frontal (vertical,) and two occipital, or 
post-frontal, with three small plates intercalated between the latter. The rostral plate 
is more extended in the lateral than vertical direction, somewhat rounded above, exca- 
vated in front; the internasal are irregularly quadrangular, in contact in front with the 
vertical, inferiorly with the nasal, at their inner border with each other, posteriorly with 
the fronto-nasals; the pre-frontals are two in number, large, more or less quadrilateral, 
passing down alongside the muzzle in contact inferiorly with the second and third supra- 
labials, posteriorly with the ante-orbitar, and the pre-frontal plates; the pre-frontals are 
very much smaller than the fronto-nasals, quadrilateral; the frontal (vertical) is regu- 
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