^'wor'] PROCEEDINGS OF THE NATIONAL MUSEUM. 447 



262. Acmaea spectrum Nutt. — Reeve. 

 Biiidloe I.sland, Wimmer. 



SubgeiniH NACELLA Schumacher. 

 263. Nacella subspiralis (Jj)r. 

 Cliailes and Hood islands, Winmier. 



Superffeiiraiy RHIPIUOOLOSSA., 



Family TIJKIilNID^-]. 



GeniiH TURBO I.iiiii^. 



Section SENECTITS Swainson. 



264. Turbo squamigerus Reeve. 



Galapagos Islands, Carpenter. 



Family TKOCHID^.. 



(U'AuiH OMPHALIUS Philippi. 



265. Omphalius Cooksoni Sinitli. 



? — O. fascial itH Born. 



James Island, Albatross-, Hood, Charles, and Bindloe islands, 

 Wimmer; Charles Island, Petrel. 



266. Omphalius reticulatus Wood. 



Hood Island, Wimmer. 



'Jeiius GAZA WatHon. 



267. Gaza Rathbuni Dall. 



Off the Galapagos, in 392 fathoms. 



Family NEKITIDvlO. 

 Genus NERITA I'.niguier*^. 



268. Nerita scabricosta l.aiii. 



=^N. ornata Sliy. 



Hood, James, and Indefatigable islands. Albatross; Galapagos 

 Islands, Wimmer. 



269. Nerita Bernhardi Recluz. 



Hood Island, Wimmer. 



Family IIELICINID^. 



Genus HELICINA Lamarck. 

 Section IDESA. 



270. Helicina nesiotica ])al]. 



= M, Wolfii Rieh. 



Chatham Island, Baiir, Keibisch, 



