NO. 1704. A COLLECTION OF SHELLS FROM PERU— BALL. 229 



Family STROMBID^. 

 Genus STROMBUS Linnaeus. 



STROMBUS GRACILIOR Gray. 



1828. Wood, Index Test., suppl. pi. 4, fig. 1. Gulf of Califor- 

 nia to Manta, Ecuador. 



STROMBUS GRANULATUS Gray. 



1828. Wood, Index Test., suppl. pi. 4, fig. 21.— Sowerby, Thes. 

 Con., Stromhus, p. 33, pi. 9, fig. 100, 1847. Mazatlan, 

 Mexico, and southeast to Guayaquil. 



STROMBUS PERUVIANUS Swainson. 



1831. Zool. 111., pi. 39.— Sowerby, Thes. Con., vol. 1, p. 34, pi. 

 10, fig. 110, 1847. Manta, Ecuador, to Paita, Peru. 



Family CERITHIIDvE. 



Genus CERITHIUM Bruguiere. 



CERITHIUM ADUSTUM Kiener. 



1841. Icon., Cerithimn^ p. 37, pi. 13, fig. 2. Mazatlan to 

 Panama and the Galapagos Islands. 



CERITHIUM INTERRUPTUM Menke. 



18.50. Zeitschr. f. Mai., p. 178.— Sowerby, Thes. Con., vol. 2, p. 

 869, figs. 155, 156, 1855. Gulf of California to Manta, 

 Ecuador, and the Galapagos Islands. 



CERITHIUM MACULOSUM Kiener. 



1841. Icon., Cerlthiam, p. 36, pi. 13, fig. 3. Panama to Guaya- 

 quil and the Galapagos Islands. 



CERITHIUM OCELLATUM Bruguiere. 



1792. Encycl. Meth., p. 499, no. 43.— Tryon, Man., vol. 9, p. 

 13, pi. 24, fig. 19, 1887. Mazatlan, Mexico, to Panama and 

 the Galapagos Islands. 



CERITHIUM PACIFICUM Sowerby. 



1833. Sowerby, Gen. Shells, Cerithiwn^ 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. Ceritliium peruvianum Orbigny, Voy. Am. Mer., p. 443, 

 pi. 77, figs. 9, 10. Arica, Chile. 



BITTIUM (STVLIDIUM) SULCIFERUM Troschel. 



1852. Rlssoina sulcifefi'a Troschel, Arch. f. Naturg., vol. 18, pt. 

 1, p. 154, pi. 5, fig. 1. Peru (Tschudi). 



