Mesozolc and Cmnozoic Geology and PalcBontology. 251 



borne, Alabama, and referred it to the age of the Loudon clay, of Eng- 

 land, and the Calcalre Grossier, of Paris. Flaving received Lj^eU's Prin- 

 ciples, wherein the Tertiarj^ was subdivided into Eocene, Miocene and 

 Pliocene, he was enabled to class the Claiborne strata with the 

 Eocene. This seems to have been the first application of the word 

 *' Eocene " to American rocks, though as above remarked, Conrad had 

 compared American rocks with the London clay and Calcaire 

 Grossiei\ which were afterward made the type of the Eocene period. 

 He described, trom the Eocene at Claiborne, LunuUtes bouei, now 

 Discofliistrellaria houei^ L. duclosi, now Heteractis duclosi, Orhitolites 

 interstitia, now LunuUtes interstitia^ O. discoidea, now Cupularia dis- 

 coidea^ TurhinoUa goldfussi, now Platytrochus goldfussi, T. maclurei, 

 now Endopachys maclurei, T. nana, T. phareta, T. atokesi, now Platy- 

 trochus stokesi, 8iliquaria claib omens is ^ Dentalium alternatum, D. 

 turritum, Spirorhis tuhanella, Serpula ornata. Teredo simplex, Sole- 

 curtus blainviUei, Anatina claihornensis, now Periploma claihornensis, 

 Mactra dentata, 31. grayi, 31. pygmaea, Corhula alahamensis, C. 

 compressa, C. gibhosa, C. murchisoni, Byssomya petricoloides, EgeiHa 

 hucklandi, E. injlata, now Sphaerella injlata, E. nana, E. nitens, E. 

 ovalis, E. plana., now Tellina plana, E. rotunda, E. subtrigona^ E, 

 triangulata., E. veneriformis, Lucina compressa,L. cornuta, L. impres- 

 sa, L. lunata, L. papyracea, Gratelupia moulinsi, Astarte minor, now 

 3ficromeris minor, A. nicklini, A. parva, now 31. parva, A. recurva, 



A. minutissima, now M. minutissima, Cytherea comis, C. globosa, C. 

 hydi, O. minima, C. subcrassa, C. trijoniata, Venericardia parva, 



V. rotunda, V. silUmani, V. transversa, Hippagws isocardioides, 

 Myoparo Gostatus, Area rhomb oidella, now Anomalocardia rhomboid- 

 ella, Pectunculus broderipi, P. deltoideus, P. minor, P. ellipsis, now 

 Limopsis ellipsis, Nucula brongniarti, K. carinifera, jST. magna, now 

 NuGulana magna, JST. media, now Nuculana media, N. ovula, now 

 Nucidana ovula, jV. pectuncularis, now Limopsis pectuncularis, JST. 

 plicata, now Nuculana plicata, N. pulcherrima, now N'uculana pul- 

 cherrima, N. sedgwrcki, iV. semen, now N'uculana semen, Avicula 

 claibornensis, Pecten desha'yesi, P. lyelli, Plicatula mantelli, Ostrea 

 alabamensis, 0. divaricata, 0. linguacanis, 0. pincerna, 0. semilunata, 

 Fissurella claibornensis, Ripponyx pygmcea, now Concholepas pygmma, 

 Infundibulum trochiforme, Crepidula cornuarietes. Bulla sthillairi, 



B. dekayi, now Cylichna dekayi, Pasithea aciculata, P. claibornensis, 

 P. elegans, P. guttula, P. lugubris, P. minima, P. notata, P. secale, 

 P. umbilicata, P. striata, now Actoeonella striata, P. sulcata, now A. 



