362 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1937 



especially adaptable to hill-stream life, and their vigor and fecundity, 

 especially in the absence of competitors, would have ensured their 

 survival under almost any natural conditions short of complete 

 desiccation or immersion in sea water. 



If this view be granted, the only conceivable continental connection 

 of a Greater Antillean land mass is one with Central America, at a 

 time when neither the North American nor the South American 

 Ostariophysi had invaded much of Middle America. I have already 

 shown that we cannot date these invasions. Finally, if we are to 

 suppose that all the South American Ostariophysi originally wended 

 their way southward through Central America, 1 believe we should 

 have to push any such continental bridge bock into the Mesozoic, 

 if indeed it ever existed at all. 



LITERATURE 



Anthony, Harold Elmer. 



1918. The indigenous land mammals of Porto Rico, living and extinct. 



Mem. Amer. Mus. Nat. Hist., n. s., vol. 2, pt. 2, pp. 331-435, figs. 



1-55, pis. 55-75. 

 Barbour, Thomas. 



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



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



vol. 44, no. 2, pp. 209-359, 1 pi. 

 1916. Some remarks upon Matthew's "Climate and Evolution." Ann. 



New York Acad. Sci., vol. 27, pp. 1-10. 

 1935. A second list of Antillean reptiles and amphibians. Zoologica, Sci. 



Contr. New York Zool. Soc, vol. 19, no. 3, pp. 77-141. 

 Berg, Leo Semenovitch. 



1934. The suborder Esocoidei (Pisces). Izvestia Perm Biol. Sci.-Invest. 



Inst. Perm State Univ., vol. 10, nos. 9-10, pp. 385-391. 

 Dunn, Emmett Reid. 



1923. The geographical distribution of amphibians. Amer. Nat., vol. 57, 



pp. 129-136. 

 1931. The herpetological fauna of the Americas. Copeia, 1931, no. 3, 



pp. 106-119, figs. 1-6. 

 1934. Physiography and herpetology in the Lesser Antilles. Copeia, no. 3, 



pp. 105-1 11. 

 Eioenmann, Carl H. 



1903. The fresh-water fishes of Western Cuba. Bull. U. S. Fish Comm., 



vol. 22, pp. 211-236, 17 figs., pis. 19-21. 

 1909. The fresh-water fishes of Patagonia and an examination of the Archi- 



plata-Archhelenis theory. Repts. Princeton Univ. Expeds. Pata- 

 gonia, Zoology, vol. 3, pt. 3, pp. 225-374, 1 map, pis. 30-37. 

 Haseman, John Dietrich. 



1912. The relationship of the genus Priscacara. Bull. Amer. Mus. Nat. 



Hist., vol. 31, art. 8, pp. 97-101. 

 Hay, Oliver Perry. 



1902. Bibliography and catalogue of the fossil Vertebrata of North America. 



Bull. U. S. Geol. Surv., no. 179, 868 pp. 

 1929. Second bibliography and catalogue of the fossil Vertebrata of North 



America. Carnegie Inst. Washington, publ. no. 390, vol. 1, 916 pp. 



