, OF SOUTH CAROLINA. 153 
circumstances, resembles the marl, both in structure and embedded fossils; hence it is not lami- 
nated, and is generally rich in fossil remains. It is, indeed, marl, from which the lime is removed. 
The fossils most abundant in it are casts of Lutraria lapidosa and Cardita planicosta. 
Fosstt SHetis or Bunr-sTtone ForMATION. 
‘ Marine Gasteropoda. : 
Fissurella tenebrosa, Con. Fusus thoracicus, Con. 
Infundibulum trochiforme, “ “  limulus, ke 
Crepidula lyrata, p: “ papellatus, ke 
i dumosa, sf «  pulcher, Lea. 
“ levis, iT: “  decussatus, ee 
Dentalium arciformis, Con. «“  robustus, i: 
Auricula Gibba, lb “ _ erenulatus, “ 
Natica striata, Lea. “  spinosulus, & 
“  eetites, Con. “minor, Lea. 
“  Jimula, se Triton pyramidatum? —H. C. Lea. 
Sigaretus bilix, 
Actzon pomilis, { “  fusiformis, Lea. 
Scalaria venusta? H. C. Lea. “ _vetustus, Con. 
Meleagris antiquatus, Con. Melongena elevata, : one 
Turretella carinata, H. C. Lea. Pyrula cancellata, Lea. 
a Mortoni, Con. “« _‘elegantissima, f 
ce humerosa, S Mitra perexillis, Con. 
x gracilis, H. C. Lea. Aneillaria scamba, u; 
Cerithium striatum, Lea. ff staminea, £c 
C cancellatum, T. é altile. 
Pleurotoma depygis, Con. Buccinum lineatum, AM 
a monilifera, Lea. Cypriea semen, a “ 
u. subulata, Ake Terebra costata, Lea. 
Cancellaria alveata, Con. a venusta, eC 
Voluta Sayana, cs 
Oliva gracilis Lea. 
Conus saurileus. Con. 
Lamellibranchiata. 
Teredo. Cardium Nicolleti, Con. 
Pholas Roperiana, abs Cardita planicosta, Lam. 
Mactra pretzenuis, Con. “ alticosta, Con. 
Lutraria lapidosa, a « — Blandingi, a 
Crassatella alaeformis, 3 “« pilineata, T: 
4 protexta, ¢ Cucullea depressa, § 
Corbula nasuta, Ke Arca rhomboidella, Lea. 
39 
Monoceros armigeros, Con. 
