no. 1704. A COLLECTION OF SHELLS FROM PERU—DALL. 269 
ANOMALOCARDIA SUBRUGOSA Sowerby. 
1834. Venus subrugosa SowERBY, Gen., Venus, fig. 2; Thes. Con., 
Venus, pl. 155, fig. 63, 1853. Magdalena Bay, Lower Cali- 
fornia, to Valparaiso, Chile. : 
Genus MARCIA (Adams) Fischer. 
MARCIA LENTICULARIS Sowerby. 
1835. Venus lenticularis SowERBY, Proc. Zool. Soc., p. 42; Thes. 
Con., Venus, pl. 161, fig. 194, 1853. Valparaiso and Co- 
quimbo, Chile. 
MARCIA RUFA Lamarck. 
1818. Cytherea rufa LamMarcK, An. s. Vert., vol. 5, p. 570 (not 
of SowErRBy, 1853); Thes. Con., Zapes, pl. 150, fig. 123, 1852. 
Gulf of Panama and south to Concepcion, Chile. 
Genus PAPHIA Bolten. 
PAPHIA (PROTOTHACA) CINERACEA Hupé. 
1854. Venus cineracea Hurt, Hist. de Chile, Zoél., Mol., p. 334, 
pl. 6, fig. 2. Callao, Peru, to northern Chile. 
PAPHIA (PROTOTHACA) GRATA Say. 
1831. Venus grata Say, Am. Con., pt. 3, pl. 26. Lower Cali- 
fornia; south to Antofagasta, Chile. 
PAPHIA (PROTOTHACA) THACA Molina. 
1782. Chama thaca Mowina, Saggio Hist. de Chile, p. 178.— 
Puirert, Abb., vol. 1, p. 127, pl. 2, fig. 1; pl. 3, fig. 3, 1844. 
Ancon, Peru, and south to the Chonos Archipelago, Chile. 
Genus VENERUPIS Lamarek. 
VENERUPIS OBLONGA Lamarck. 
1834.  Petricola oblonga, SowERBy, Proc. Zool. Soc., p. 46; 
Thes. Con., Venerupis, p. 765, pl. 165, fig. 21, 1854. Gulf 
of Panama to Pacasmayo, Peru. 
VENERUPIS FERNANDEZIANA Stempel. 
1899. Fauna Chilensis, suppl. Bd. 4, fase. 1, p. 237, pl. 12, figs. 
29-23. Juan Fernandez Islands. 
Family PETRICOLIDA. 
Genus PETRICOLA Lamarck. 
PETRICOLA CONCINNA Sowerby. 
1834. Proc. Zool. Soc., p. 46; Thes. Con., Petricola, p. 773, 
pl. 166, fig. 8, 1854. Monte Cristi, Ecuador, to Arica, Chile. 
PETRICOLA DENTICULATA Sowerby. 
1834. Proc. Zool. Soc., p. 46; P. dactylus in Thes. Con., Petri- 
cola, p. 773, pl. 166, figs. 6, 7, 1854; not of Sowxmrsy, Gen. 
Sh. 1823. Gulf of California to Paita, Peru. 
PETRICOLA DISCORS Sowerby. 
1834. Proc. Zool. Soc., p.46. (Unfigured.) Lambayeque, Peru. 
