912 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. 
Family MITRID i. 
Genus MITRA Martyn. 
MITRA EFFUSA Swainson. 
1835. Proc. Zool. Soc., p. 194.—RxxEveE, Con. Icon., Jira, pl. 
14, fig. 100, 1844. Gulf of Panama to the Galapagos Islands. 
MITRA LENS Mawe. 
1828. Woop, Ind. Test., suppl. pl. 3, fig. 25. Mazatlan, Mexico, 
south to Paita, Peru, and the Galapagos Islands. 
MITRA ORIENTALIS Gray. 
1834. Griffith’s Cuvier, pl. 40, fig. 5. Ancon, Peru, south to 
Iquique, Chile. 
MITRA SEMIGRANOSA Von Martens. 
1897. Arch. Nat., vol. 63, p. 178, pl. 16, figs. 24, 25. Ecuador 
coast and south to Chile. 
MITRA SULCATA Swainson. i 
1825. Tankerville Cat., App., p. xxvI.—REEvxE, Con. Icon., 
Mitra, pl. 22, fig. 176, 1844. West coast Central America 
and southward to Ecuador. 3 
MITRA TRISTIS Swainson. 
1835. Tiara tristis Swatnson, Proc. Zool. Soc., p. 194.—REEVE, 
Con. Icon., Mitra, pl. 15, fig. 114, 1844. Mazatlan, Mexico, 
to Guayaquil and the Galapagos Islands. 
Family FASCIOLARIIDA. 
Genus FASCIOLARIA Lamarck. 
FASCIOLARIA GRANOSA Broderip. 
1832. Proc. Zool. Soc., p. 32.—RxExEvE, Con. Icon., Hasciolaria, 
fig. 6, 1847. West Mexico, Panama; Peru (Tschudi). 
FASCIOLARIA PRINCEPS Sowerby. 
1825. Tankerville Cat., App., p. xv1.—Krenmr, Icon., asczo- 
laria, p. 6, pls. 12,13. Gulf of California to Peru and the 
Galapagos Islands. 
Genus LATIRUS Montfort. 
LATIRUS CERATUS Gray. ' 
1828. In Wood, Ind. Test., suppl. pl. 5, fig. 15 (as Murex). 
Mazatlan, Mexico, to Manta, Ecuador, and the Galapagos 
Islands. 
LATIRUS CONCENTRICUS Reeve. 
1847. Con. Icon., Zurbinella, figs. 2, 44. Acapulco, to Panama 
and Guayaquil. 
Pree 
Hoalvu.es Corrshimnea) dowerby A Meboritl, eid : Comck, dee 
KUf, GRA IF/T, pike, £3. Peve, rol , Sve, VI}, 2 1h, fg : 
