THE HERPETOLOGY OF HISPANIOLA 

 Table 18. — Specimens of Aristelliger lar examined 



103 



Whatever may be the ultimate decision as to the identity of the 

 Jamaican and Hispaniolan forms, it is safe to say that neither of 

 them is closely related to Aristelliger irregularis Cope of Cozumel 

 Island, in which the subdigital lamellae on the fourth toe are 15 in 

 number, while the upper labials are 9 or 10 and the lower labials 9 

 on both sides, the posterior ones always very small. If Bocourt's 

 figure of the type of georgensis is correctly drawn, then this species 

 also possesses the large dorsal granules and should be related to 

 irregularis on this score and not to the Jamaican or Hispaniolan 

 species. 



Specimens examined. — As listed in table 18. 



Genus SPHAERODACTYLUS Wagler 



1830. Sphaerodactylvs Wagler, Natiirliches System der Amphibieu, p. 143 

 (type, 5. s-putator Cuvier). 



This genus is one of the most difficult in the entire fauna of tropical 

 America. Dr. Barbour's monograph has helped greatly in clearing up 

 some problems and in pointing the way for further research. The 

 descriptions by Dr. Barbour of Sphaerodactylus copei and S. difficilis 

 have been taken word for word from his monograph, and his superb 

 figures of copei have likewise been "borrowed" outright. 



KEY TO HISPANIOLAN SPECIES OF SPHAERODACTYLUS 



a'. Dorsals granular, about 23 in standard distance between center 



of eye and tip of snout cinereus (p. 1 04) 



a*. Dorsals imbricate, at least posteriorly. 



6'. A distinctly differentiated middorsal zone of small granules, 

 remaining dorsals large and keeled, 5 to 9 in standard 



distance copei (p. 107) 



62. No conspicuously differentiated middorsal granular zone. 



c*. Dorsals smooth, indistinctly imbricate anteriorly, about 14 



to 16 in standard distance stejnegeri (p. 109) 



c*. Dorsals keeled. 



d^. Markings transverse samanensis (p. 112) 



d-. Markings not transverse. 



e'. Central throat scales small, flat, not granular, larger 



and smooth on lower neck and chest difficilis (p. 115) 



