262 PROCEEDINGS OF THE NATIONAL MUSEUM. MOENate 
Family CONDYLOCARDIID 2. 
Genus CARDITELLA Smith. 
CARDITELLA PYGM2A Philippi. 
1860. Oardium pygmxum Purirprt, Atacama Reise, p. 176, 
Zo6l., pl. 7, figs. 83a-c. Isla Blanca, Chile, S. lat. 23° 307. 
CARDITELLA SEMEN Reeve. : 
1843. Cardita semen REEVE, Con. Icon., Cardita, pl. 9, fig. 48, 
1843. Cobija, Chile, south to Isla Blanca. 
CARDITELLA TEGULATA Reeve. 
1843. Cardita tequlata Renve, Con. Icon., Cardita, pl. 9, fig. - 
48. Callao, Peru, to Valparaiso, Chile. 
Genus CARDITOPSIS Smith. 
CARDITOPSIS FLABELLUM Reeve. 
1843. Cardita jflabellum Rexvn, Con. lcon., Cardita, pl. 9, fig. 
47. Callao, Peru, to Valparaiso, and southward to Magellan 
Straits. 
Superfamily CHAMACEA. 
Family CHAMIDE. 
Genus CHAMA Bruguiére. 
CHAMA ECHINATA Broderip. 
1835. Trans. Zoél. Soc. London, vol. 1, p. 305, pl. 39, figs. 5—7. 
Panama and southward to Pifita, Peru. 
CHAMA FRONDOSA Broderip. 
1835. Trans. Zoél. Soc. London, vol. 1, p. 302, pl. 38, figs. 1, 2. 
Gulf of Panama to Guayaquil and the Galapagos Islands. 
CHAMA PELLUCIDA Broderip. 
1834. Proc. Zodl. Soc., p.50; Trans. Zoél. Soc. London, vol. 1, 
p. 302, pl. 38, fig. 3, 1885. San Pedro, California, south to 
Valparaiso, Chile, and Juan Fernandez Island. 
Superfamily LUCINACEA. 
Family LUCINIDA. 
Genus PHACOIDES Blainville. 
PHACOIDES FENESTRATUS Hinds. : 
1844. Lucina fenestrata Htxps, Zool. Sulph. Voy., Moll., p. 66, 
pl. 19, fig. 2. Lower California to Panama and to Tumbes, 
Peru. 
PHACOIDES TELLINOIDES Reeve. 
1850. Lucina tellinoides RervE, Con. Icon., Lucina, pl. 9, fig. 56. 
Magdalena Bay, Lower California, to Guayaquil, Ecuader. 
