M U R I C I D ^ . 67 



nodular, suture deeply channeled. The nodular keel which crowns the summit of each 

 whorl, and the deeply channeled suture will distinguish this species readily. — T. 6f H. 



Common in a recent state on this coast, from Cape Cod, southward. Fossil in the 

 Meiocene of Maryland, and in the Post-Pleiocene of North and South Carolina. Only 

 small specimens have as yet been discovered in the Carolina beds. 



Plate XI. Fio. 3, Natural size. 



Locality. Simmons'; Wadmalaw Sound. 



Museum, College of Charlestoji; Cabinet F. S. H. 



PYRULA. — Lam. 



PYRULA PYRUM. — L. R. Gibbes. 

 Plate XI. Pig. 4. 



Bulla pyrum, Dill, Cat., p. 485. 



Buccinis ampullaceis tenuibus. Lister, Conch., t. 877. 



Pyrula spirata. Lam., An. sans Vert., Vol. 9, p. 512. 



Fulgur pyruloides, Saij, Amn. Conch., pi. 19. 



Fulgur pyruloides, Say, Conch. United States, ed. Bi?mei/, p. 80. 



Pyrula pyruloides, Ravenel, Cat. Coll. Shells, p. 15. 



Pyrula spirata. Reeve, Conch. Icon., pi. 8, fig. 27. 



Pyrula spirata, De Kay, Zool. New- York, Art. Mollusca, p. 142, pi. viii, figs. 180, 181. 



Fulgur pyrum. Con., Pro. Acad. Nat. Sci., Vol. 6, p. 319. 



Fulgur pyruloides. Say, Jour. Acad. Nat. Sci., Vol. 2, p. 237. 



Pyrula pyrum, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xx. 



Cassidulus pyrum, Tuomey Sf Holmes, Pleiocene Foss. So. Ca., p. 148, pi. xxx, fig. 2. 



Description. Shell pear-shaped, thick, spirally striated, flattened above, unarmed ; 

 striae alternately larger; suture canaliculate; spire short, exserted. 



Large specimens of this shell common on the southern coast ; we have found only one 

 specimen in the Post-Pleiocene of South-Carolina. 



Plate XI. Fig. 4, Natural size. 



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



