No. 1704. A COLLECTION OF SHELLS FROM PERU—DALL. Dil 
PHOLADIDEA QUADRA Sowerby. 
1834. Pholas quadra SOwERBY, Proc. Zool. Soc., p. 71; Thes. 
Con., Pholas, p. 499, pl. 106, figs. 62, 63, 1849. Monte Cristi, 
Ecuador. 
PHOLADIDEA TRIDENS Gray. 
1851. Pholas tridens Gray, Ann. Mag. Nat. Hist., 2nd ser., vol. 8, 
p. 885.—Sowersy, Thes. Con., Pholas, p. 498, pl. 106, figs. 
60, 61, 1849. Ecuador coast. 
PHOLADIDEA TUBIFERA Sowerby. 
1834. Pholas tubifera SowERBY, Proc. Zool. Soc., p. 71; Thes. 
-Con., Pholas, p. 499, pl. 106, figs. 64, 65, 1849. Gulf of 
Panama to Paita, Peru. 
Genus JOUANNETIA Desmoulins. 
JOUANNETIA PECTINATA Conrad. 
1849. Pholadopsis pectinata Conrad, Proc. Acad. Nat. Sci. 
Phila, for 1849 (August) p. 156; Journ. Acad. Nat. Sci. Phila., 
2d ser., vol: 1, p. 279, pl. 39, fig. 3, 1850. Guayaquil and 
Gulf of Panama. 
Genus MARTESIA Leach. 
MARTESIA CURTA Sowerby. 
1834. Pholas curta SowERBy, Proc. Zool. Soc., p. 71; Thes. Con., 
Pholas, p. 494, pl. 104, figs. 33, 34; pl. 108, fig. 105, 1849. 
Gulf of Panama to Tumbes, Peru. Also Atlantic and Antilles. 
Genus XYLOTOMEA Dall. 
XYLOTOMEA GLOBOSA Sowerby. 
1835. Xylophaga globosa SowrrBy, Proc. Zool. Soc., p. 110; 
Thes. Con., Pholas, p. 503, pl. 108, figs. 101-102, 1849. 
Panama south to Valparaiso and Juan Fernandez Island. 
Family TEREDINID 4%. 
Genus TEREDO Linnezus. 
? TEREDO NAVALIS Linnzus. 
1854. Zeredo navalis Hurt, Hist. de Chile, vol. 8, Mol. p. 384, 
1854 (7 not of Linneus). Valparaiso. 
Genus XYLOTRYA Leach. 
XYLOTRYA DRYAS Dall. 
1909. Proc. U. S. Nat. Mus., Vol. 37, p. 162, pl. 25, figs. 2, 3, 5, 
6, 7. Tumbes, Peru, at Estero del Palo Santo, boring in the 
heart of living mangroves. 
