234 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



CREPIDULA DILATATA Sowerby. 



1824. 0. dilatata (Lamarck Ms.) Sowerby, Gen, Sh., Crepidula, 

 fig. 5. — Delessert, Rec. de Coq. pi. 24, fig. 4:a-<\ Califor- 

 nia, and southward to Magellan straits. 



CREPIDULA DORSATA Broderip. 



183 i. Calyptreea dorsata Broderip, Trans. Zool. Soc. London, 

 vol. 1, p. 202, pi. 28, fig. 10. California, south to Valparaiso, 

 Chile. 



CREPIDULA EXCAVATA Broderip. 



1884. Trans. Zool. Soc. London, vol. 1, p. 225, pi. 29, fig. 7. 

 Gulf of California and south to the Chilean coast. 



CREPIDULA INCURVA Broderip. 



1834. Proc. Zool. Soc, p. 40; Trans. Zool. Soc. London, vol. 1, 

 pi. 29, fig. 6. Mazatlan, Mexico, to Paita, Peru. 



CREPIDULA ONYX Sowerby. 



1824. Gen. Shells, C7'epidida^ fig. 2. San Pedro, California, 

 south to Arica, Chile. 



CREPIDULA SQUAMA Broderip. 



1834. Proc. Zool. Soc, p. 40; Trans. Zool. Soc. London, vol. 1, 

 p. 205, pi. 29, fig. 10, 1834. Straits of Fuca south to Pata- 

 gonia. 



Family CAPULID^. 



Genus CAPULUS Montfort. 



CAPULUS UNGARICOIDES Orbigny. 



1841. Voy. Am. Mer., p. 457, pi. 78, fig. 4. Paita, Peru. 



Family HIPPONICID^E. 

 Genus HIPPONIX Defrance. 



HIPPONIX ANTIQUATA Linnasus. 



1767. Patella antl<nmta Linn^us, Syst. Nat. , 12th ed. , p. 1259. — 

 Sowerby, Thes., vol. 1, p. 369, pi. 73, figs. 18-20, 1847. Santa 

 Barbara, California, and south to Peru and the Galapagos 

 Islands. Also West Indies. 



HIPPONIX BARBATA Sowerby. 



1835. Proc Zool. Soc, p. 5; Thes. Con., vol. 1, p. 369, pi. 73, 

 figs. 26-27, 1847. Mazatlan, Mexico, and south to Guayaciuil 

 and the Galapagos Islands. Also Indo-Pacific. 



HIPPONIX GRAYANA Menke. 



1853. Zeitschr. f. Mai., p. 115.— Tryon, Man., vol. 8, p. 135, 

 pi. 40, figs. 4, 5, 1886. Mazatlan, Mexico, to Guayaquil and 

 the Galapagos Islands. 



HIPPONIX SUBRUFA Lamarck. 



1819. Plleopsls Huhrufa Lamarck, An. s. Vert., vol. 6, pt. 2, p. 

 16.— Sowerby, Thes. Con., vol. 1, p. 370, pi. 73, figs. 21-23, 

 1847. Panama and south to the Lobos Islands, Peru; Indo- 

 Pacific. Also West Indies. 



