THE HERPETOLOGY OF HISPANIOLA 



267 



In comparing the type of Ameiva ivetmorei with my specimens of 

 lineolata, however, certain differences are at once apparent. A. wet- 

 morei has but 3 supraoculars; the frontoparietal is undivided; the 

 middle occipital shield is very small, being bordered on each side by 

 a single large shield. A. lineolata, on the other hand, has 4 supra- 

 oculars; the frontoparietal is divided; the middle occipital is larger 

 than the others, having a smaller shield on each side, which in turn 

 is bordered by another shield of approximately equal size. In colora- 

 tion, the unequal width of dark and light stripes in wetmorei is in 

 great contrast to the uniform fine striping of lineolata. The former 

 species has light round spots against a black background on the upper 

 limb surfaces; the latter has striped arms and vermiculated legs. 

 The similarities of the two species are much more striking than their 

 differences, however, and their obvious affinity affords one more link 

 in the zoogeographic chain of evidence for the connection of Puerto 

 Rico and Hispaniola in ages past. 



The Beata Island form described by Dr. Noble under the name of 

 Ameiva beatensis in 1923 is of course the closest to its probable parent 

 lineolata, although it too shows a resemblance to wetmorei in having 

 the pattern continued onto the end of the snout, which is not the case 

 in true lineolata, as Dr. Noble has pointed out. 



Specimens examined. — As listed in table 49. 



Table 49. — Specimens of Ameiva lineolata lineolata examined 



Museum No. 



Locality 



Date 



Collector 



U.S.N.M. 



59207,59208 



77052,77053 



80751,80752 



Af.C.Z. 



8742 



A.M.N.H. 



(11 specimens) 



Paris Mus. 



Thomazeau, Haiti. 



Cul-de-Sac Plain, Haiti 



Montert, Port-au-Prince, Haiti. 



Manneville, Haiti- 



Apr. 3, 1917 



1929. 

 1930. 



Monte Cristi, D. R. 



"St. Domingue". 



J. B. Henderson and P. 



Bartsch. 

 A. E. Vinson. 

 L. H. Parish and W. Per- 



rygo. 



W. M. Mann. 



A. Olsson and K. P. 

 Schmidt. 



Dr. Bally. 



AMEIVA LINEOLATA BEATENSIS Noble 



Figures 72, 74 



1923. Ameiva beatensis Noble, Amer. Mus. Nov., No. 64, p. 2 (type locality, 

 Beata Island, Dominican Republic; collector, G. K. Noble). — Barbour, 

 Zoologica, vol. 11, No. 4, pp. 69, 103, 1930; vol. 19, No. 3, p. 127, 1935; Bull. 

 Mus. Comp. Zool., vol. 82, No. 2, p. 145, 1937. 



