THE OPERCULATE LAND MOLLUSKS OF THE 



FAMILY ANNULARHDAE OF THE ISLAND OF 



HISPANIOLA AND THE BAHAMA 



ARCHIPELAGO 



By Paul Bartsch 



In 1920 John B. Henderson and I published "A Classification of the 

 American Operculate Land Mollusks of the Family Annulariidae."^ It 

 was our intention to follow this by detailed monographs upon the group. 

 The unfortunate early death of Mr. Henderson inhibited this endeavor. 



The study was resumed by Dr. Carlos de la Torre and me in 1936. 

 Our first paper, "The Cuban Operculate Land Shells of the Subfamily 

 Chondropominae,"2 was published in 1938. This was followed in 1941 

 by "The Cuban Operculate Land Mollusks of the Family Annulariidae, 

 Exclusive of the Subfamily Chondropominae.''^ In 1942 we published 

 "A Revision of the Classification of the Operculate Land Mollusks of 

 Cuba belonging to the Family Annulariidae, and a List of the Known 

 Species and Subspecies."-* The present paper is a continuation of these 

 studies and embraces an account of the members of this family known 

 from Hispaniola and the Bahama Archipelago. 



I wish here to express my thanks to Dr. Henry A. Pilsbry, of the 

 Academy of Natural Sciences of Philadelphia, for the loan of material 

 and also to William J. Clench, of the Museum of Comparative Zoology 

 at Harvard College, for similar courtesies. 



THE ANNULARIIDAE OF HISPANIOLA 



In spite of the fact that Hispaniola, as Columbus termed the island 

 now designated as Haiti and the Dominican Republic, has been known 

 since that dauntless navigator discovered America, it is still the least 

 explored of the Antilles when considered from a natural-history stand- 

 point. The reasons for this will become readily apparent to anyone will- 



1 Proc. U. S. Nat. Mus., vol. 58, pp. 49-82, 1920. 



'Proc. U. S. Nat. Mus., vol. 85, pp. 193-403, figs. 71-101, pis. 7-39, 1938. 



»Proc. U. S. Nat. Mus., vol. 89, pp. 131-385, pis. 9-57, 1941. 



* Proc. Eighth Amer. Sci. Congress, vol. 3, Biol. Sci., pp. 335-379, 1942. 



