54 DAVENPORT ACADEMV <>K NATURAL SCIENCES. 



Cyprwa exanthema L. Tortugas reefs; Key West. 



Cyprcea cervus L. Tortugas reefs; young. I have a fine pair 

 which are almost black, from Key West. One very large dead shell 

 was found at Stump Pass, by Mr. James Mann. 



Cyprcea sptirca L. Tortugas reefs; living. 



Cyprcea cinerea Gm. Several dead shells and one very fine living 

 specimen were found at Tortugas reefs. 



Cyprcea {Trivia) pediculus L. Anna Maria Key; Florida Keys. 



Cyprcea {Trivia) quadripunctata Gray. Tortugas; very plentiful. 



Cyprcea {Trivia) nivea Gray. Tortugas; one shell. 



Ovulum gibbosum I -. Key West. 



Ovulum acicularis Lam. Tortugas. 



*Gvulum uniplicata Sowb. R. C. Stuart, found on the Florida Keys. 



Cassis cameo Stimpson. Tortugas; rare. This fine species, once 

 abundant at the above locality, is now seldom found, and I was told 

 that a specimen had not been obtained there, in good condition, for 

 more than a year. I have seen shells from the Tortugas that would 

 not go into an ordinary water-bucket. I found a nearly entire fresh 

 shell on the upper end of Anna Maria Key, in the spring of 1885. 



Cassis sulcosa Brug. West coast. 



Cassis sulcosa, var. i?iflata Shaw. Florida Keys. 



Oniscia oniscus L. Key West ; Tortugas. 



Dolium galea L. Marquesas Keys, young; Key West. 



Dolium perdix L. Tortugas; young. 



Pyrula ■ papyracea Say. West coast; abundant. 



Pleurotoma zebra Lam. Key West. 



Pleurotoma soli da C. B. Ad. Tortugas; young. 



Pleurotoma tayloriana Reeve. Sannibel Island. 



Pleurotoma gibbosa Born. Anna Maria Key; one slightly worn shell. 



Pleurotoma eritima Bush. Tortugas. 



Pleurotoma atrostyla Dall. Tortugas. 



Pleurotoma albinodata Reeve. Tortugas. 



Pleurotoma cerinella Dall. Tortugas. 



Pleurotoma limonitella Dall. Tortugas; Sarasota Bay. 



Pleurotoma ostrearum Stearns. Tortugas. 



Pleurotoma ostrearum Stearns, color var. Tortugas. 



Pleurotoma biconica Ad. Tortugas. 



Pleurotoma biconica Ad., var. Tortugas. 



Pleurotoma caribbea D'Orb. Tortugas. 



Pleurotoma (Mangilia?) Simpsoni, n. s. 



The following is Mr. Dall's description of this little shell: 



