THE HERPETOLOGY OF HISPANIOLA 87 



This species belongs to a different group from that containing L. 

 validus of Grenada and St. Vincent, the latter group being character- 

 ized by a pair of black spines on the first finger of the male as well as 

 by a rounded snout. In L. dominicensis, and several others related 

 to alhilahris, no finger spines are found in the male, while the snout in 

 profile shows a more or less distinct rim. The femur is also much 

 shorter in dominicensis than in validus, while the color pattern is 

 dissimilar. 



Specimens examined. — U.S.N, M. No. 65670 (type), Las Canitas, 

 Dominican Republic, February 25, 1923; U.S.N.M. No. 65671 (tad- 

 pole), Samand and Laguna, Dominican Republic, March 1923; 

 U.S.N.M. Nos. 66675, 66676, 4 miles west of Jovero, Dominican 

 Republic, December 4, 1923. All collected by Dr. W. L. Abbott. 



Class REPTILIA 



Order SQUAMATA 



Suborder Sauria 



KEY TO GENERA OF LIZARDS KNOWN TO OCCUR IN HISPANIOLA 



a^ Four limbs. 



b^. Eyelids undeveloped (family Gekkonidae). 

 d. Toes compressed; pupil round or subelliptical. 



d*. Toes undilated at tip Gonatodes (p. 88) 



(P. Toes dilated at tip only Sphaerodactylus (p. 103) 



c^. Toes dilated at base; pupil vertical. 



(fi. Infradigital lamellae in a double series Hemidactylus (p. 91) 



d^. Infradigital lamellae in a single series Aristelliger (p. 96) 



b^. Eyelids functional. 



c^ Head covered with relatively small scales or plates (family 

 Iguanidae). 

 d^. Toes with marked dilations but no "combs." 



e^. A transverse gular fold ending in heavy folds in front of 



shoulder, also a longitudinal gular fold Audantia (p. 188) 



e*. Usually a longitudinal gular fold only (except in A7iolis 

 hendersoni) . 

 p. Compressed distal phalanges inserted at end of ex- 

 panded part of digit Chamaelinorops (p. 126) 



p. Compressed distal phalanges arising above expanded 

 part of digit. 



g^. Tail prehensile Anolis (p. 128) 



g^. Tail not prehensile Xiphocercus (p. 124) 



cP. Toes not dilated, but outer ones with lateral "combs." 

 e^. A dorsal crest. 



p. Tail heavily verticillated; size large Cyclura (p. 195) 



p. Tail not verticillated; size relatively small. Leiocephalus (p. 202) 

 e'. No dorsal crest Hispaniolus (p. 241) 



