CALYPTRiEID^E. 95 



CRYPTA.— Humph. (1797.) 

 CREPIDULA. — Lam. (1801.) 



CRYPTA FORNICATA.— H. & A . Adams, 

 Plate XIV. Fig. 11. 



Patella fornicata, Linn., Syst. Nat., 1257. 

 Crepidula fornicata, Lam., An. sans Vert., Vol. 7, p. 641. 

 Crepidula fornicata, Martini, 1, pi. 13, figs. 129 and 130. 

 Crepidula fornicata, var., Say, Jour. Acad. Nat. Sci., Vol. 2, p. 225. 

 Crepidula fornicata, Con., Foss. Med. Ter. Form., pi. 45, fig. 10. 

 Crepidula fornicata, Say, Conch U. S., ed. Binney, p 73. 

 Crepidula fornicata, Ravenel, Cat. Coll. Shells, p. 9. 

 Crepidula fornicata, Gould, Invert. Mass., p. 158, fig. 17. 



Crepidula fornicata, De Kay, Zool. New- York, Art. Mollusca, p. 157, pi. vii, figs. 152, 154, 

 Crepidula fornicata, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xx. 

 Crepidula fornicata, Stimpson, Shells of New-England, p. 30. 

 . Crypta fornicata, H. Sf A Adams, Gen. Mollusca, Vol. 1, p. 369. 

 Crypta fornicata, Tuomey Sf Holmes, Pleiocene Foss. So. Ca. p. 110, pi. xxv, fig. 9. 



Description. " Shell oblique-oval, convex, smooth, sometimes wrinkled with obsolete 

 undulating longitudinal lines; apex prominent; diaphragm sub-concave, occupying half 

 the interior of shell, the free edge waving. This is a common species in the Pleiocene 

 beds of South-Carolina, and abundant on the sea-shores in a living state. In the marl of 

 Goose Creek a series of united casts occupying their natural position, are common 

 fossils."— T. Sf LI. 



Plate XIV. Fig. 11, Natural size. 



Locality. Simmons'. Museum, College of Charleston; Cabinet F. S. H. 



CRYPTA ACULBATA. 

 Plate XIV. Fig. 12. 



Crepidula aculeata, Lam., Anim. sans Vert., Vol. 7, p. 642. 

 Crepidula aculeata, Sowerby, Gen., n. 23. 

 Crepidula aculeata, Ravenel, Cat. Coll. Shells, p. 9. 



