no. 1704. A COLLECTION OF SHELLS FROM PERU—DALL. J23 
Suborder STREPTODONTA. 
Superfamily PTENOGLOSSA. 
Family SCALIDZ. 
Genus EPITONIUM Bolten. 
EPITONIUM DUCALE March. 
1875. Scalaria ducalis MoOrcn, Mal. Blitt., vol. 22, p. 143.— 
SowERBy, Thes. Con., Scalaria, p. 88, pl. 34, fig. 75, 1847; 
as S. principalis (not of Patuas, 1774). Jipijapa, Ecuador. 
EPITONIUM ELENENSE Sowerby. 
1844. Scalaria elenensis SOwERBY, Proc. Zool. Soc., p. 29; Thes. 
Con., Scalaria, p. 98, pl. 34, fig. 102, 1847. Santa Elena, Bay 
of Guayaquil, Ecuador. 
EPITONIUM OBTUSUM Sowerby. 
1844. Scalaria obtusa SOWERBY, Proc. Zool. Soc., p. 29; Thes. 
Con., Scalaria, p. 98, pl. 33, fig. 54, 1847. Santa Elena, Bay 
of Guayaquil, Ecuador. 
EPITONIUM ORBIGNYI Nyst. 
18738. Scalarca orbignyt Nyst, Tabl., p. 48; S. elegans OrBIGNny, 
Voy. Am. Mér., p. 389, pl. 54, figs. 1, 2, 1840; not of Risso, 
1826. Southern Chile. 
EPITONIUM POLITUM Sowerby. 
1844. Scalaria polita SowERBY, Proc. Zool. Soc., p. 30; Thes. 
Con., Scalaria, p. 100, pl. 34, fig. 99, 1847. Jipijapa, Ecuador. 
EPITONIUM STATUMINATUM Sowerby. 
1844. Scalaria statuminata SowERBY, Proc. Zool. Soc., p. 30; 
Mhes: Con., Scalaria, p. 102, pl. 35, fig. 127, 1847. Bay of 
Guayaquil, southward to Paita, Peru. 
Family JANTHINID 2. 
Genus JANTHINA Bolten. 
JANTHINA EXIGUA Lamarck. 
1822. An. s. Vert., vol. 6, pt. 2, p. 206.—TRyon, Man., vol. 9, 
p- 37, pl. 10, figs. 17-22, 1887. Chile; also Atlantic and Pacific 
oceans. Pelagic. 
JANTHINA JANTHINA Linneus. : 
1758. Helix janthina Linnzus, Syst. Nat., 10th ed., p. 772.— 
Orpieny, Voy. Am. Mér., p. 413, pl. 61, figs. 8-10, 1841. 
Pelagic. N. Lat. 42° to S. lat. 36° in the Pacific Ocean. 
JANTHINA PALLIDA Harvey. 
1817. Thompson’s Ann. Phil. Nat. Hist., vol 5, p. 96, pl. 2, fig. 
2. Pelagic in the tropical Pacific and Atlantic. 
