224 ['October, 



sides are much smaller than those of the back and abdomen, (1 sp.) (6.) In 

 which the scales of the sides are of about the same dimension as those of the 

 back and abdomen ; this group is again divided into (a.) species in which the 

 scales upon the upper and lateral parts of the body are mingled with tubercles, 

 (1 sp. loysiana,) and (6.) in which the scales of the upper parts and sides of the 

 body are homogeneous or not mingled with tubercles. This last division com- 

 prises by far the greater number, viz., twenty species. The genus Anolis is 

 exclusively American ; of the twenty-five species described by Dumeril and 

 Bibron, two are from Surinam; five from Cuba, exclusively; one from Cuba and 

 the United States ; one from Cuba and Mexico ; one from Cuba and Jamaica; five 

 from Martinique, exclusively ; one from Martinique and St. Domingo, one 

 from Chili; two from Brazil; two from the West Indies; one from the island 

 of Tortola; one from St. Domingo, exclusively; one from Cayenne, and one of 

 unknown origin. 



Of these twenty-five species of Anolis, Dumeril and Bibron represent 

 at least one half as entirely new, (1837,) with the exception of two or 

 three previously described by Wiegmann. One has since been described (1851,) 

 by Prof. Aug. Dumeril, in the Catalogue Methodique de la Collection des 

 Reptiles des Museum d'histoire Naturelle de Paris. (A. Heterodermus from New 

 Grenada.) 



De la Sagra's work on Cuba contains figures of six species viz., vermi- 

 culatus, Carolinensis, lucius, Sagraei, Loysiana, (A. cantholis,) Fernandina 

 (CamEeliopsis,) (A. camfelionides, D. & B.) Daudin has figured two species 

 viz. : A^ lineatus and punctatus. Anolis velifer is figured in Guerin Iconogra- 

 phic du Fv,egne Animal, Tome 1, pi. 12. The Prince de Wied has figured two 

 species of Anolis, viz.: A. gracilis, (nasicus,D . & B.) and A. viridis, punctatus, 

 Daudin, according to Dumeril and Bibron. 



Among the reptiles belonging to this genus in the collection of the Academy, 

 are several well known species, viz. : Anolis equestris, (5 sp.) A. camaelo- 

 nides, (1.) A. carolinensis, (28 sp.) A. punctatus, (1 sp.) A. Edwardsii, (4 sp.) the 

 last from Jamaica, and others from Cuba, Mexico and Jamaica, which we cannot 

 make out as described in the systems. A number of these were collected in Jamaica 

 at the instigation of my excellent friend. Dr. Caspar W Pennock, and generously 

 presented by him to the Academy, and others by another friend, Dr. Betton, 

 of Germantown. These are the more valuable, inasmuch as the Herpetology of 

 Jamaica appears to be but incompletely known ; but one species of Anolis is 

 described by Mr. Gray as inhabiting that island, viz. : A. stenodactylus. 



Anolis (Draconura, Wieg.) tropidogaster, Nob. 



Char. Head of moderate size, covered in front with elevated scales or tuber- 

 cles of neaily equal size; supraciliary ridges separated from each other by two 

 rows of smaller scales ; four or five large unicarinate scales upon each orbit ; 

 occipital plate not in contact with the supraciliary ridge ; temples covered with 

 small granulations ; middle rows of dorsal scales the largest ; scales upon abdo- 

 men strongly carinated ; color brownish, extremities banded with brown. 



Description. This species of Anolis is readily distinguished by the remarkably 

 strong carination of the ventral scales, being even more strongly carinated than 

 those of A. carolinensis, resembling much the scales of Phrynosoma cornutum. 

 The head is of moderate size, snout not prolonged; the rostral plate is broader 

 than long, rounded above ; the snout is covered with elevated scales or tuber- 

 cles, of nearly equal size ; the scales upon the front are unequal, tricari- 

 nate ; this region presents a marked depression, bounded on each side by an 

 indistinct ridge ; the supraciliary ridge on each side is constituted by a row of Jive large 

 and very distinct plates separated from each other in the middle by two rows of smaller 

 scales ; there is a group of four or five large unicarinate scales upon each orbit, 

 bordered with others of a smaller size, with numerous granulations exteriorly, 

 and a row of very small plates between these large plates and the supraciliary 

 ridge ; occipital plate rather large, irregular in shape, very distinct, separated from the 

 iupraciliary ridges by several rows of smooth scales; nostrils lateral, circular 



