220 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. 
TRITONALIA HAMATA Hinds. 
1844. Murex hamatus Hxps, Zool. Sulph. Voy., p. 8, pl. 3, figs. 
11,12. Guayaquil, Ecuador, and south to Paita, Peru. 
Genus PURPURA Martyn. 
PURPURA FONTAINE]I Tryon. 
1880. Murex fontainet Tryon, Man., vol. 2, p. 126, pl. 35, figs. 
384, 385. Paita, Peru. 
PURPURA PINNIGERA Broderip. 
1832. Murer pinniger Bropertp, Proc. Zool. Soc., p. 174.—JL. 
cristatus Gray, Con. Ill., fig. 50, 1834. Jipijapa, Ecuador. 
Genus TYPHIS Montfort. 
TYPHIS CORONATUS Broderip. 
1832. Proc. Zool. Soc., p. 178. —SowErsy, Con. IIl., pl. 200, figs. 
8, 4, 1841. Salango, Ecuador. 
TYPHIS CUMINGII Broderip. 
1832. Proc. Zool. Soc., p. 177.—Sowersy, Con. IIl., pl. 200, 
figs. 1, 2, 1841. Bahia de Caraques, Ecuador. 
TYPHIS QUADRATUS Hinds. 
1848. Proc. Zool. Soe., p. 18; Zodl. Sulph. Voy., p. 10, pl. 3, 
figs. 3, 4, 1844. Gulf of Panama, and south to Guayaquil. 
Genus MURICIDEA Swainson. 
~ MURICIDEA VITTATA Broderip. 
1832. Murex vittatus Broprrtp, Proc. Zool. Soc., p. 176; Con. 
Ill., Murex, fig. 19, 1834. Manta, Ecuador, and south to 
Paita, Peru. : 
Genus EUPLEURA Adams. 
EUPLEURA MURICIFORMIS Broderip. 
1832. Ranella muriciformis BropErir, Proc. Zool. Soc., p 
179.—RuxveE, Con. Icon., Ranella, fig. 41. Bay of Montijo, 
West Columbia, and north to Gulf of California. 
EUPLEURA NITIDA Broderip. 
1832. Ranella nitida Broprrir, Proc. Zool. Soc., p. 179.— 
Reeve, Con. Icon., Panella, fig. 45. Bahia de Caraques, 
Keuador. 
Genus THAIS Bolten. 
THAIS BISERIALIS Blainville. 
1832. Purpura biserialis BuAINVILLE, Mon. Purpura, p. 50, 
pl. 11, fig. 11. Cedros Island, west coast of Lower California, 
and southward to Callao, Peru. 
THAIS CALLAOENSIS Gray. 
1828. Purpura calladensis Gray, Spicil. Zodl., p. 4, pl. 6, fig. 
11.—Reeve, Con. Icon., Purpura, fig. 79, 1846. Gulf of 
Panama, and southward to Callao, Peru. 
