no. 1704. A COLLECTION OF SHELLS FROM PERU—DALL. oiled 
ANACHIS RUGULOSA Sowerby. 
1844. Columbella rugulosa SowmrBy, Proc. Zool. Soc., p. 51; 
Thes. Con., Columbella, p. 133, pl. 39, fig. 181, 1844. Gulf 
of Panama to Paita, Peru, and the Galapagos Islands. 
ANACHIS VARICOSA Gaskoin. 
1851. Columbella costellata SowrerRsy, Proc. Zool. Soc., 1832, 
p- 118; not of SowErBy 1829. C. varicosa GAsKoIN, Proc. 
Zool. Soe., 1851, p. 5.—Sowersy, Thes. Con., Colwmbella, 
fig. 147, 1844. Mazatlan, Mexico, som to Pata Mone and 
Arica, Chile. 
Genus ASTYRIS H. and A. Adams. 
ASTYRIS ELECTROIDES Reeve. 
1858. Columbella electroides Rnnve, Con. Icon., fig. 72. Guaya- — 
quil. 
ASTYRIS UNICOLOR Sowerby. 
1832. Columbella unicolor SowERBY, Proc. Zool. Soc., p. 119.— 
Reeve, Con. Icon., Columbella, fig. 105. From Chimbote 
Bay, Peru, south to the island ef Chiloé, Chile; also at the 
Galapagos Islands. 
ASTYRIS UNIFASCIATA Sowerby. 
1832. Columbella unifasciata SowERBY, Proc. Zool. Soc., p. 114; 
Thes. Con., Oolumbella, p. 133, pl. 39, fig. 130, 1844. Val- 
paraiso, Chile, north to ne ica. Magellan? (C. ebenwm Gould.). 
Genus NITIDELLA Swainson. 
NITIDELLA BUCCINOIDES Sowerby. 
1832. Columbella buccinoides SowERBY, Proc. Zool. Soc., p. 114 
(not of Lesson, 1842).—SoweErsy, Thes. Con., fig. 128, 1844. 
Paita, Peru, south to Coquimbo, Chile. 
NITIDELLA OCELLATA Gmelin. 
1791. Voluta ocellata GMELIN, 8. Nat., vol. 8, p. 3455.—REEVE, 
Con. Icon., Columbella, fig. 62. Tropical Atlantic. West 
Indies. Pacific, from Cape St. Lucas south to the Galapagos 
Islands and Guayaquil. 
NITIDELLA OBLITA Reeve. 
1859. Columbella oblita Reeve, Con. Icon., vol. 11, pl. 31, fig. 
2). Peru. 
Genus STROMBINA Morch. 
STROMBINA DORSATA Sowerby. 
1832. Proc. Zool. Soc., p. 120.—ReExEve, Con. Icon., Columbella 
fio. 15a. 1858. Guayaquil. 
STROMBINA GIBBERULA Sowerby. 
1832. Columbella gibberula SowERByY, Proc. Zool. Sse p. 115.— 
REEVE, Con. Icon., Columbella, fig. 610. 1858. West coast 
of Central danerien and southward to Paita, Peru. 
