Vol. 5, p. 209-215. July 6, 1926. 



Occasional Papers 



OF THE 



Boston Society of Natural History. 



ADDITIONAL FROGS FROM CUBA. 1 



BY E. R. DUNN. 



A second summer at the Harvard Biological Station at Soledad 

 near Cienfuegos has enabled me to add materially to the remarks 

 I made in 1925 (Occ. Papers, Boston Soc. Nat. Hist., Vol. 5, p. 

 163-166), and to offer diagnoses of four more species of Eleuthero- 

 dactylus from Santa Clara Province, bringing the total number of 

 species of that genus from Santa Clara up to eleven. 



Thanks are due to Dr. Thomas Barbour, to the officials of 

 Central Soledad and of its various Colonias, and to Mr. Caspari of 

 Mina Carlota. 



At Soledad I succeeded in getting the long-lost Eleutherodac- 

 tylus varians, and in the Trinidad Mountains, at Mina Carlota, I 

 took large series of three forms of which I had taken only a few 

 the previous summer, and one which I had not taken before. 



I have also examined the Cuban frogs in the United States 

 National Museum, the American Museum of Natural History, 

 and the Museum of Comparative Zoology, with the result that I 

 shall describe another species from western Cuba, and give a 

 tentative arrangement and key to the Cuban species of this 

 troublesome genus. 



As far as the Province of Santa Clara itself is concerned, there 

 is no difficulty in discriminating between species, .except in the 

 cases of ricordii and casparii (which do not occur together) , and 

 of ricordii and cuneatus (which do occur together but whose 

 resemblances are superficial). Some difficulty may be expected 

 in distinguishing individuals of auriculatus from eileenae, or 

 greyi from piriarensis and brevipalmatus, for these are vicarious 

 forms confined to different provinces, and may even be found to 

 intergrade. 



E. gundlachi from Oriente and E. casparii from Santa Clara 

 may be vicarious forms, but are well differentiated. 



Other forms, such as atkinsi and dimidiatus, show slight geo- 

 graphical differences, not enough to warrant distinction; while 

 cuneatus and ricordii and sonans range over the entire island 

 without perceptible change; ricordii, however, does not occur in 



1 Contribution from the Smith College Department of Zoology, No. 139. 

 No. 2, Studies from the Biological Laboratory (Atkins Foundation) of the 

 Harvard Institute for Tropical Biology and Medicine. 



