60 POST-PLEIOCENE FOSSILS. 



Genus, TEREDO.-Linn. 

 Sub. Genus, XYLOTRYA.-Leach. 



XYLOTRYA PALMULATA. 



Plate IX. Fig. 5. 



Teredo palmulatus, Lam., An. sans Vert., 2d Ed., Vol. 6, p. 38. 



Teredo palmulatus, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xxii. 



Xylotrya palmulata, Adams, Gen. Recent Mollusca, Vol. 2, p. 333. 



This shell, remarkable for perforating the bottom of ships, and known as the ship worm, 

 is common in wood exposed to the waters of the bays and harbors along the coast. We 

 have as yet found in the Post-Pleiocene only portions of the calcareous tubes with which 

 their perforations are lined. 



Plate IX. Fig. 5, Fragment of tube. 



Locality. Artesian Well, Charleston. 



Museum, College of Charleston. 



Class, GASTEROPODA. Order, PTEROPODA. Family, CAVOLLNLD^. 

 Genus, CAVOLINA.— Gioeni. 



CAVOLINA TUOMEY I. — {New Species.) 

 Plate IX. Figs. 8 to 8e. 



Description. Shell somewhat globular, symmetrical, lateral fissures narrow, slightly 

 curved, extending backwards into the short appendices ; mouth large, but not so large as 

 the cavity of shell, arched below, with a reflected lip ; margin above irregular, waved ; 

 dorsal surface nearly as wide as it is long, radiately ribbed ; ribs five, large, the two lateral 

 ones almost obsolete, the three middle ones distinct, margins extending beyond that of the 

 abdomen; apex slightly produced, tumid. 



I believe this is the first fossil specimen of Cavolina (Hyaleea) that has been discovered 



