5 



cies merits the name of belia, unless otherwise designated by 



Prof. Holmes, who dredged it "off Charleston bar." 

 Artemis concentrica, Born, Gibbes' Cat. N. and S. C, 

 Venus mercenaria, Lin. Gould, 85. N. and S. C. The varieties 



notata and prceparca, as well as the large shells — 5 in. high, 4 in. 



wide — are found on this coast. I have received well grown shells 



from the Tortugas Islands. 

 V. gemma, Totten. Gould, 88. N. and S. C. 

 V. cancellata. N. C. ( Gytherea occulta of Say ?) 

 V. inequalis*, Say. J. A. N. S., II. 273. 



Y. orbicularis, Kurtz, n. s. dia. .33 in. Fort Johnson, S. C. 

 V. trapezoidalis, Kurtz, n. s. width .5 in., covered with convex 



radiating ribs, set with brown spots and scales of growth. A thin 



brown pile on goud specimens. N. and S. C. 

 Cardium magnum. C. ventricosum, Brug. Gibbes' Cat. N. and S. C. 

 0. muricatum, Lin. Gibbes' Cat. N. and S. C. 



C. L03VIGATUM. S. C. 



C. isocardia*, Lin. Gibbes' Cat. 



C. serratum, Lam. Folly Island, S. C. Cab. of Prof. Holmes. 



C. ? (tellina-form.) Oak Island, N. C. 



Cardita tridentata, Say. J. A. N. S., Y. 216. N. and S. C. 



Arca Americana, (A. pexata, Say? non Gould.) N. and S. C. 



A. ponderosa, Say. J. A. N. S., II. 267- N. and S. C. 



A. incongrua, Say. J. A. N. S., II 268. N. and S. C. Found 



on the outer beaches, rather than in " the estuaries." 

 A. transversa, Say. J. A. N. S., II. 269. N. and S. C. 

 A. Holmesii, Kurtz, n. s. Distinguished from its analogues, A. 



pexata, and A. Americana, by Prof. Holmes. It is smaller, 



more inflated, solid, and globular. Inhabits the estuaries. N 



and S. C. 



A. barbata. N. and S. C. Fossil ? 

 A. NoiE. N. and S. C. 

 A. Zebra. N. C. 



Nucula proxema, Say. J. A. N. S., II. 270. N. and S. C. 



N. acuta, Conrad. Gibbes' Cat. N and S. C. 



Pectunculus ? dia. .75 in. Ft. Macon, N. C. Off Charleston H. 



