Crepidula acuta, xlii, 108.f
*— lirata, xxiii, 344.
*Cucullæa vulgaris, xvii, 285; xviii, 250.f
Cyclas elegans, xxxix, 375.
— staminea, xxv, 347.f
*Cyclora, new genus of fossil shells, J. Hall, xlviii, 294.
*— minuta, xlviii, 294.
Cypræa, genus, notice of a monograph of, Duclos, xx, 379.
*— carolinensis, xli, 346.f
— moneta, xxxii, 250.