274 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 37. 
Genus IPHIGENIA Schumacher. 
IPHIGENIA ALTIOR Sowerby. 
1832. Proc. Zool. Soc., p. 196 (as Capsa).—RormEr, Mon. Dona- 
cidee, p. 114, pl. 21, figs. 1-4, 1869. Gulf of California to 
Tumbes, Peru. 
Superfamily SOLENACEA. 
Family SOLENID ©. 
Genus SOLEN Linnezeus. 
SOLEN GAUDICHAUDI Chenu. 
1843. Illustr. Con., Solen, pl. 2, fig. 7. Valparaiso and Co 
quimbo, Chile. 
SOLEN MACHA Molina. 
1782. Hist. Nat. de Chile, p. 178.—Hupsé, Hist. de Chile, vol. 8, 
Mol., p. 369, pl. 8, fig. 6, 1854. Valparaiso to Chiloé, and 
Puerto Montt, Chile 
Superfamily MACTRACEA. 
Family MACTRIDA. 
Genus MACTRA (Linneeus) Lamarek. 
MACTRA (MACTRODERMA) VELATA Philippi. 
1848. J/. velata Puitieri, Zeitschr. f. Mal., p. 153, no. 7; Abb., 
WOR Gi, 0. MOC) Ole By tes 6, ISO, Gulf of California and 
south to Paita, fperu, ‘and d the Galapagos Islands. 
VV Me fot, WOeR Canad d vag, SE, Elem, OLatomn 
mn eons mOLEN Gray. 
MULINIA BICOLOR Gray. 
1838. Loudon’s Mag. N. Hist., new ser., vol. 1, p. 375.—HAn Ey, 
Ree. Biy. Sh., pl. 10, fig. 31, 1842.—PHinippr, Ann. Mus. Nae. 
de Chile, Zool., vol. 4, p. 11, pl. 3, figs. 9,10, 1893. Copiapd 
to Valparaiso. 
MULINIA BYRONENSIS Gray. 
1838. Loudon’s Mag. N. Hist., new ser., vol. 1, p. 376, fig. 33; 
Zool. Beechey’s Voy., p. 154, pl. 44, fig. 11, 1839. Salaverri, 
Peru, and south to Taleahuano, Chile. 
MULINIA EDULIS King. 
1831. Mactra edulis Kine, Zool. Journ., vol. 5, p. 335.—WMactra 
byronensis Hurt, Hist. de Chile, vol. 8, Mol., pl. 8, fig. 1, 
1854 (not of Gray, 1838). Callao, Peru, and south to Magel- 
lan straits. 
MULINIA PALLIDA Broderip and Sowerby. 
1829. Mactra pallida BropErtp and SowERBY, Zool. Journ., vol. 
4, p. 360.—ReeEveE, Con. Icon., d/octra, pl. 9, fig. 34, 1854. 
Gulf of California and south to Panama and Manta, Ecuador. 
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