272 Ph'OCEEDlXGS OF THE XATIOXAL MLSEUil. vol.37. 



SEMELE LENTICULARIS Sowerby. 



1832. Amphldesina lenticularis Sowerby, Proc. Zool. Soc. p. 

 200; Con. III., Amphidesma, tig. 9, 1833. Santa Elena, 

 Guayaquil. 



SEMELE PALLIDA Sowerby. 



I8;')2. AinpJtidesma paUidinn Sowerby, Proc. Zool. Soc p. 199; 

 Con. 111., Amphidesma^ tig- 3, 1833. Salango, Ecuador. 



SEMELE PULCHRA Sowerby. 



1832, Amphidesma pnlchrum Sowerby, Proc. Zool. Soc, p. 57; 

 Con. 111.. Am2)hidesma^ fig. 2. 1833. Bay of Caraques. Ec- 

 uador. 



SEMELE PURPURASCENS Sowerby, 



1832. Aiaphidesina pinpurascens Sowerby, Proc. Zool. Soc, p. 

 199; Con. 111.. Amijhlde><ma^ tig, 5, 1833. Santa Elena. Bay 

 of Guayaquil. 



SEMELE ROSEA Sowerby. 



1532. Aiiipliidesma roseum Sowerby. Proc Zool, Soc. p. 199; 

 Con. III., Amphidesma^ fig, 1, 1833. Tumbes. Peru. 



SEMELE RUPIUM Sowerby. 



1832. Amphidesma rupium Sowerby, Proc Zool. Soc, p. 199; 

 Con. 111., Ai/iphidesm>u fig- H, 1833. California, south to 

 Guayaquil and the Galapagos Islands. 



SEMELE SOLIDA Gray. 



1828. Amphidesma solidum Gray. Spicil. Zool.. pi. 6, fig. 6. — 

 HuPE, Hist, de Chile, ]Mol.. pi. 7, fig. 1. Callao, Peru, south 

 to the Chonos Archipelago. 



SEMELE VARIEGATA Lamarck. 



1818. A//p/iidei<ma variegatum Lamarck, An. s. Yert., vol. 5, 

 p. 190; Encycl. Meth., pi. 291, fig. 3.— Hupe, Hist, de Chile, 

 vol. 8. Mol.. p. 359. pi. 7. fig. 2, 1854. Pferu and Chile. 



Genus CUMINGIA So^A^e^by. 



CURIINGIA LAMELLOSA Sowerby. 



1833. Proc Zool, Soc, p, 31; Con. Icon., Cumlngia^ pi. 1, fig. 

 5, 1873. Gulf of Panama to Paita, Peru, and to northern 

 Chile. 



CUMINGIA MUTICA Sowerby. 



1533, Proc Zool. Soc, p. 34; Con. Icon., Cumingia, pi. 1, fig. 

 3, 1873. Bay of Guayaquil to Paita, Peru, and south to 

 Concepcion, Chile. 



Family PSAMMOBIID.E. 



Genus PSAMMOBIA Lamarck. 

 PSAMMOBIA LATA Deshayes. 



1854. Proc. Zool. Soc, p. 318. — Reeve, Con, Icon,, Psammobia^ 

 pi. 1, fig. 7, 1857. Bay of Guayaquil. 



