1905.] NATURAL SCIENCES OF PHILADELPHIA. 291 



MOLLUSCA OF FLINT AND CAROLINE ISLANDS, IN THE CENTRAL PACIFIC. 



BY HENRY A. PILSBRY AND EDWARD G. VANATTA. 



The species recorded below were collected by Mr. C. D. Voy, a Cali- 

 fornian naturalist, in the year 1875, in the course of a voyage from 

 Honolulu through Polynesia to Sydney, New Soutn Wales, Australia. 

 Somewhat extensive series of mollusks, Crustacea and echinoderms 

 were also taken in the Marquesas, Society Islands, Rurutu Island of 

 the Austral group, etc. These collections were acquired by the late 

 Prof. E. D. Cope, and remained unopened in the original parcels until 

 presented to the Academy of Natural Sciences in 1901 by Mrs. Annie 

 P. Cope. 



Most of the island groups represented in Yoy's collection have been 

 more or less exploited by other naturalists, particularly Garrett, Pease 

 and the Godeffroy brothers; but so far as we know, no mollusks have 

 been reported from Caroline and Flint Islands. Although the collec- 

 tion from these places is not extensive, we have thought it worth while 

 on this account to put the facts on record. The only land animals 

 taken on the two islands were the widely distributed Birgus latro and 

 Truncatella valida. 



Flint Island lies 11° 25' 43" S., 151° 48' W., and Caroline Island is 

 10° S., 150° 14' 30" W. They are small, isolated, uninhabited islets, 

 lying north of the Society group, in the central Pacific. 



List of Species. 

 (F., Flint Island; C, Caroline Islatid.) 



Conus catus Brug. F. 



" eburneus Hwass. F. 



" ehrceus L. {hebrceus auct.). 

 F., C. 



" miles L. F. 



" retifer Mke. F. 



" vexillum Gm. F. 



" vitulinus Hwass. F, 



" violaceus Rve. C. 

 Glyphostoma sp. F. 

 Murex rubesceus Brod. F. 



Murex laqueatus Sowb. F, 

 Maculotriton bradeatus Hinds. F., 

 C. 

 " digitalis Rve. F.,C. 



Purpura armigera Dillw. C. 

 " bitubercularis Lam. F., 

 C. 

 Ricinula horrida Lam, F., C. 

 " ricinus L, F., C. 

 " " elegans Brod. F., 



C. 



