BUCCINID^E. 71 



transverse ribs are dislocated by a revolving line deeply impressed, which divides them 

 into two series, the superior being shorter and thicker than the inferior. — T. 4- H. 



Recent on this coast, from Maryland to Florida; fossil in the Pleiocene of South-Caro- 

 lina and Meiocene of Virginia. 



Plate XI. Fig. 12, Natural size. 



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



BUCCINUM.— Linn. 



BDUOINUM OBSOLETUM.— Adams, 

 Plate XII. Pig. 1. 



Nassa obsoleta, Say, Jour. Acad. Nat. Sci., Vol. 2, p. 232. 



Nassa obsoleta, Say, Conch. U. S., ed. Binney, p. 77. 



Buccinum Nov.-Eboracensis, Wood, Index Suppt., pi. 4, fig. 26. 



Buccinum oliviforme, Kiener, Inconog., pi. 25, fig. 99. 



Nassa obsoletum, Ravenel, Cat. Coll. Shells, p. 17. 



Buccinum obsoletum, Adams, Boston Jour. Nat. Hist., Vol. 2, p. 267. 



Buccinum obsoletum, Gould, Invert Mass , p. 308, fig. 210. 



Buccinum obsoletum, De Kay, Zool. New- York, Art. Moll., p. 133, pi. viii, figs. 163, 164. 



Nassa obsoleta, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xx. 



Nassa obsoleta, Stimpson, Shells of New-England, p. 45. 



Tritia obsoleta, H. $ A. Adams, Gen. Moll., Vol. 1, p. 122. 



Buccinum obsoletum, Tuomey Sf Holmes, Pleiocene Foss. So. Ca., p. 135, pi. xviii, fig. 5. 



Description. Shell ovate, surface covered with a net-work of lines which gives it a 

 granulated appearance ; spire shorter than the body ; labrum with a few elevated lines 

 which are interrupted, and do not extend to the margin of the lip ; lip simple and sharp ; 

 pillar covered with a broad callus. — T. 4- H. 



This is a most abundant shell along the whole coast of the Atlantic shore, and is found 

 fossil in the Post-Pleiocene in great numbers. We have obtained it also from the Pleio- 

 cene beds of South-Carolina. 



Plate XII. Fig. 1, Natural size. 



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



