*— Harlani, xvii, 283; xviii, 250f; xxiv, 130.f
*— lachryma, xxiv, 130.f
*— lapillus, xxix, 153.f
*— nuciformis, xxix, 150.f
*— pennata, ii, 244.f
*— plicata, ii, 43.
*— Sayi, xvii, 283; xviii, 250.f
— septentrionalis, xxxiv, 216.
*Teredo tibialis, xxiii, 292.
Thracia, on the genus, J. P. Couthouy, xxxvi, 382.