1914.] NATURAL SCIENCES OF PHILADELPHIA. 429 



LIST OF LAND AND FRESH-WATER MOLLUSKS OF ANTIGUA. 

 BY HENRY A. PILSBRY AND AMOS P. BROWN. 



The material for this list was collected by one of us (A. P. B.) 

 during August, 1913. Several species were supplied by Mr. W. R. 

 Forrest, to whom we are also indebted for specimens from Barbuda, 

 Anguilla, and other islands. 



ERICIIDJE. 

 Cistula antiguensis Shuttl. 



Willoughby Bay; AVetherill's Bay. 



TRUNCATELLID^. 

 Truncatella bilabiata Pfr. 

 Willoughby Bay. 



AMNICOLID^. 



Potamopyrgus coronatus crystallinus (Pfr.) 



HELICINID^. 



Helicina crosbyi A. P. Brown. 



Pleistocene of St. George's Church and Hodge's Bay. It is 

 somewhat remarkable that Helicina has not been found living on 

 Antigua. See these Proceedings for 1913, p. 612, pi. xix, figs. 1, 3, 8. 



HELICID^. 

 Pleurodonte formosa (Fer.). 



Hills above Willoughby Bay, St. Philips Parish; also hills above 

 St. Mary's Rectory. Near Hodge's Point and near St. George's 

 Church (Pleistocene). (Also from Barbuda.) 



The only places where P. formosa was seen living were two, namely, 

 in the southeastern part of the island, in the hills above Willoughby 

 Bay, St. Philip's Parish ; and in the southwestern part of the island, 

 near St. Mary's Rectory. It appears to be arboreal in habit now, 

 though perhaps descending to the ground to deposit eggs. No doubt 

 it is found living among the hills all through the southwestern corner 

 of the island; this portion is still fairly well covered with woods and 

 affords good cover. While found fossil in the northern and north- 



