266 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



TIVELA HIANS Philippi. 



1851. Donax hums Philippi, Zeitschr. f. Mai., vol. 8, p. 74. — 

 RoEMER, Mon. Venus., p. 9, pi. 3, fig-. 3, 1869. Magdalena 

 Bay, Lower California, south to Valparaiso, Chile. 



TIVELA PLANULATA Broderip and Sowerby. 



1829. CytJierca jilanulata Broderip and Sowerby, Zool. Journ., 

 vol. 5, p. 48. — Sowerby, Thes. Con., Cytherea,\A. 127, fig. 13, 

 1851. Gulf of California south to Coquimbo, Chile. 



Genus M A.CROC ALLISTA Meek. 

 MACROCALLISTA AURANTIACA Sowerby. 



1831. Cytherea mirantiaca Sowerby, Gen. Sh., vol. 33, fig. 6; 

 Thes. Con., CyfJured, pi. 132, fig. 97 h!s, 1853. Gulf of Cali- 

 fornia to Guayaquil. 



MACROCALLISTA PANNOSA Sowerby. 



1835. Cytherea }KUinosa Sowerby, Proe. Zool. Soc., p 47; Thes. 

 Con., Cytherea, pi. 138, figs. 140-142; pi. 163, tigs. 202-203, 

 1851. Gulf of California south to Valparaiso, Chile. 



MACROCALLISTA SQUALIDA Sowerby. 



1835. Cytherea squall da Sowerby, Proe. Zool. Soc, p. 23; Thes. 

 Con., Cytherea, p. 629, pi. 131, figs. 87-89, 1851. Cedros 

 Island, Lower California, south to Peru. 



Genus PITARIA Roemer. 

 PITARIA INCONSPICUA Sowerby. 



1835. Cytherea inconspleua Sowerby, Proe, Zool. Soc., p. 47; 

 Thes. Con., Cytherea, pi. 133, figs. 133-134, 1852. Paita, 

 Peru, and south to Talcahuano, Chile. 



PITARIA POLLICARIS Carpenter. 



1864. CaUista poUicaris Carpenter, Ann. Mag. Nat. Hist., 

 vol. 13, p. 475. — Reeve, Con. Icon., Dione {prora), fig. 45. 

 Gulf of California to Callao, Peru. 



PITARIA TOMEANA Dall. 



1902. Proe. U. S. Nat. Mus., vol. 26, p. 402, pi. 15, fig. 2. 

 Gulf of Panama to Tome, Chile, and the Galapagos Islands. 



PITARIA (LAMELLICONCHA) CIRCINATA Born. 



1780. Venus circhiata Born, Test. Mus. Vind.. p. 61, pi. 4, fig. 

 8.— Sowerby, Thes. Con., Cytherea, pi. 132, figs. 104-106, 

 1853. Gulf of California to Paita, Peru. 



PITARIA (LAMELLICONCHA) CONCINNA Sowerby. 



1835. Cytherea concinna Sowerby, Proe. Zool. Soc, p. 23; 

 Thes. Con., Cytherea, pi. 132, figs. 99-100, 1851. Magdalena 

 Bay, Lower California, to Paita, Peru. 



PITARIA (LAMELLICONCHA) CUMINGI Orbigny. 



1846. Verms cumingi Orbigny, Vo3^ Am. Mer,, p. 563.— 

 Cytherea modesta Sowerby, Thes. Con., Cytherea, pi. 136, 

 fig. 184, 1851. Jipijax)a, Ecuador. 



