No. 1704. A COLLECTION OF SHELLS FROM PERU—DALL. 229 
Family STROMBID 2. 
Genus STROMBUS Linnezeus. 
STROMBUS GRACILIOR Gray. 
1828. Woop, Index Test., suppl. pl. 4, fig. 1. Gulf of Califor- 
nia to Manta, Ecuador. 
STROMBUS GRANULATUS Gray. 
1828. Woop, Index Test., suppl. pl. 4, fig. 21.—Sowrrsy, Thes. 
Con., Strombus, p. 33, pl. 9, fig. 100, 1847. Mazatlan, 
Mexico, and southeast to Guayaquil. 
STROMBUS PERUVIANUS Swainson. 
1831. Zodl. Ill., pl. 39.—Sowrrsy, Thes. Con., vol. 1, p. 34, pl. 
10, fig. 110, 1847. Manta, Wenador, to Paita, Dean 
Family CERITHIIDZ. 
Genus CERITHIUM Bruguiére. 
CERITHIUM ADUSTUM Kiener. 
1841. Icon., Cerethium, p. 37, pl. 13, fig. 2. Mazatlan to 
Panama and the Galapagos Islands. 
CERITHIUM INTERRUPTUM Menke. 
1850. Zeitschr. f. Mal., p. 178.—Sowerpy, Thes. Con., vol. 2, p. 
869, figs. 155, 156, 1855. Gulf of California to Manta, 
EKeuador, and the Galapagos Islands. 
CERITHIUM MACULOSUM Kiener. 
1841. Icon., Cerithium, p. 36, pl. 13, fig. 3. Panama to Guaya- 
quil and the Galapagos Islands. 
CERITHIUM OCELLATUM Bruguiére. 
1792. Eneycl. Méth., p. 499, no. 43.—Tryon, Man., vol. 9, p. 
13, pl. 24, fiz. 19, 1887. Mazatlan, Mexico, to Panama and 
the Galapagos Islands. 
CERITHIUM PACIFICUM Sowerby. 
1833. SowrErsy, Gen. Shells, Cerzthiwm, part xlii, fig.9. Panama 
and south to Valparaiso, Chile. 
CERITHIUM STERCUSMUSCARUM Valenciennes. 
1833. Humboldt Voy., Zool., vol. 2, p. 278. Cedros Island, 
Lower California, and southward to Tumbes, Peru, and the 
Galapagos Islands. 
Genus BITTIUM (Leach) Gray. 
BITTIUM PERUVIANUM Orbigny. 
1841. Cerithium peruvianum Orgieny, Voy. Am. Mér., p. 448, 
pl. 77, figs. 9, 10. Arica, Chile. 
BITTIUM (STYLIDIUM) SULCIFERUM Troschel. 
1852. Rissoina sulcifera TROscHEL, Arch. f. Naturg., vol. 18, pt. 
1, p. 154, pl. 5, fig. 1. Peru (Tschudi). 
