168 PROCEEDINGS OF THE ACADEMY OP 



.Pseudaspis c a n a (Coronella Auct.) differs widely from the Coronelline 

 genera in the strong posterior development of these hypapophyses, resembling 

 Lamprophis aurora, which separates itself by this from the Lycodonta, 

 where it has been erroneously placed. 



Chamaeleolis porcus. 



Height from superciliary margin to mandibular edge enters two and two- 

 third times in length from end of muzzle to end of casque, (3^ times in feN 

 n a n d i n a) ; width of muzzle at middle 2| times in length from its end to the 

 posterior border of orbit; (3 times in f e r n an di n a). Casque rather ab- 

 ruptly turned upwards. Labials nearly square, separated by but one row of 

 large scales, from orbit. Inferior labials short, in contact below throughout 

 with a row of ten more or less quadrangular infralabials, which are again 

 margined by another row of longitudinal infralabials. Thickened margin of 

 fan prolonged to symphysis, bearing a double row of long beard-like appen- 

 dages. Scales of throat and fan minute, uniform, smaller than abdominal ; 

 the last tubercular, larger than in f e r n a n d i n a. Dorsal scales large, sub- 

 quadrate, in seventeen transverse rows from axilla to groin ; (28 in f e r n a n- 

 d i n a) ; in nine larger, and six very narrow dorsal series, separated by nar- 

 row, granular interspaces. Dorsal and caudal median fold well developed. 

 End of muzzle to ear 2 in. ; ear to vent 4 in. 2 1. ; vent to end of tail 6 in. 10 l.j 

 anterior limb 2 in. 3 1. ; posterior limb 3 in. 1 1. 



Color of a 9 specimen long preserved in alcohol : A general yellowish 

 gray, with five pairs of faint brown bands across the dorsal crest, and a large 

 brown patch, on the anterior half of each side. Head with numerous black 

 spots. 



Cuba. Mus. Acad. Nat. Sci. Phila. One specimen from Dr. Gavin Wat- 

 son. This species is stouter and shorter than the fernandin a,* and differs 

 much in the scutellation. It agrees with it in some minor points, as the 

 temporal ridge, the process above the auricular opening, etc. 



Eupristis b al ea tu s. 



Scales all keeled, but little larger than smooth abdominals, separated and 

 surrounded by granulations anteriorly. Scales of nuchal crest narrow, conic; 

 of dorsal weak posteriorly. Very faint ridges on goitre, but every where a 

 clothing of fine scales. Convergent ridges of occiput not distinct. Front tu- 

 berculous, two parallel lines running down the middle to end of muzzle, 

 slightly concave between superciliary ridges. Canthus rostralis tuberculous ; 

 no occipital or supra temporal tubercles. Seven loreal rows ; brachials larger 

 than dorsals ; antebrachials and many femorals two and three keeled. Four 

 infralabials larger, the anterior not the largest. Below yellowish, posterior 

 extremities and tail much marbled with brown. Above brown, with three 

 greenish white cross-bands, which are broadest and turned backward on the 

 median line ; traces of intermediate bands are seen on the inferior part of the 

 Sides. The anterior is broken into spots, and two spots on the nape are op- 

 posite to two longitudinal pale shades on each side the neck. Head uniform 

 brown ; a light spot on lower scapular region. Brachium with two, ante- 

 brachium with four, femur and tibia each with three cross-bands of greenish 

 white. Tail with numerous broad bands. Toes cross-banded. From end of 

 muzzle to tympanic orifice QFrench measure) 4 // 5 /// ; from tympanum to 

 opposite vent ll" 4 /// ; vent to end of tail (broken) 26 // . Anterior extremity 

 6" 3'"; posterior 10" 3'". 



Rob. St. Domingo. Mus. Brittann.; (from Sall6's collection.) 



Xiphosurus f e r r e u s. 



A double nuchal crest. Dorsal and lateral scales large, keeled. Supra 

 temporal swelling covered with large tuberculiform scales. Superciliaries 



* For a beautiful specimen of this animal I am again indebted to my friend Prof. Ph. Poey. 



[Aug. 



