20.0 ANNALS NEW YORK ACADEMY OF SCIENCES 



portoHcensis. The four specimens fall within the limits of variation 

 established by Stejneger in every respect. The two from Adjuntas have 

 the dorsal scale formula of 17-17-14 instead of 17-17-15, as in the Mona 

 Island specimens. 



The stomach of one of the specimens from Mona contained the remains 

 of two Ameiva alb o guttata, and that of the other contained a tail of the 

 same species. 



LITERATURE 



Barbour, Thomas 



1914. A contribution to the zoogeography of the West Indies, with especial 



reference to amphibians and reptiles. Mem. Mus. Comp. Zool., 

 XLIV, pp. 209-359, PL I, text-fig. 1. 



1915. Recent notes regarding West Indian reptiles and amphibians. Proc. 



Biol. Soc. Wash., XXVIII, pp. 71-78. 



1916. Additional notes on West Indian reptiles and amphibians. Proc. 



Biol. Soc. Wash., XXIX, pp. 215-220. 



1917. Notes on the herpetology of the Virgin Islands. Proc. Biol. Soc. 



Wash., XXX, pp. 97-104. 

 1919. Herpetblogical notes. Notes on Celestus. Proc. New England Zool. 



Club, VII, pp. 11-13. 

 1919a. A new rock iguana from Porto Rico. Proc. Biol. Soc. Wash., 



XXXII, pp. 145-148, PI. I. 



Barbour, Thomas, and Noble, G. Kingsley 



1915. A revision of the lizards of the genus Ameiva. Bull. Mus. Comp. 

 Zool., LX, pp. 139-164, Pis. I-XV. 



Fowler, Henry W. 



1918. Some amphibians and reptiles from Porto Rico and the Virgin 



Islands. Papers Dept. Marine Biol., Carnegie Inst.. XII, pp. 1-15, 

 PI. I, text-figs. 1-6. 



Stejneger, Leonhard 



1904. The herpetology of Porto Rico. Rept. U. S. Nat. Mus., 1902, pp. 



549-724, PL I, text-figs. 1-197. 

 1913. A new lizard from Porto Rico. Proc* Biol. Soc. Wash., XXVI, pp. 



69-72. 



