Mesozoic and Ccenozoic Geology and FalceontoJ.ogy. 257 



Wm. Wagner* described, from the Miocene and older Pliocene, of 

 Maryland and North Carolina, Venus inoceriformis, Pecten mary- 

 landicus, Pa/iopwa goldfussi, Mysia nuclei for mis, and Trochus 

 eh or ens. 



In 1840, Mr. Conradf described, from the Miocene at Chapel Hill, 

 North Carolina, Fidgur excavatus, F. contrarius, Conus adversarius, 

 and Voluta carolinensis, now Mitra caroUnensis, 



The Tertiary extends from the lower limit of the Cretaceous, in 

 Connecticut,;^ to the lower part of Kent count^^, and has a thickness of 

 125 feet. 



It is found§ at Ga}^ Head, Martha's Vine3^ard, and occup^nng Long 

 Island and the eastern part of the Atlantic States from New Jersey to 

 Florida, and the southern part of the Mississippi valley. 



Henry C. Lea|| described, from the Eocene at Claiborne, Alabama, 

 Pasithea canceltata, P. elegans, P. minima, Actceon Icevis, A. magno- 

 pUcatuSy Scalaria elegans, S. venusta. Turbo parvus, Trochus planu- 

 latus, Turritella monilifera, T. gracilis, Twhinella fusoides, Pleuro- 

 toma cancellatum, Triton pyramidatum^ Terehra constricta, T. midti- 

 plicata, Gancellaria pulcherrima, Buccinum parvum^ Mitra ehurnea, 

 M. elegans, 31. gracilis, Conus parvus, and Voluta dubia. 



T. A. Conrad^ described, from the Middle Tertiary at the Natural 

 Well, Duplin county. North Carolina, AmpMdesma constrictum, now 

 Fabella constricta, Buccinum intervuptum, B. multirugatum, now 

 Ptychosalpinx midtirugata, Cardita perplana, Cassis hodgei^ now 

 Galeodia hodgei^ Cerithium carolinense, now Terebra carolinensis, 

 C. unilineatum, now T. unilineata, Cyprcea carolinensis, Dispotoea 

 dumosa, D. multilineata, Gnathodon minor, now Rangia minor, In- 

 fundibulum centrale, Lucina radians, L. trisulcata, Lunidites denti- 

 culatus, now Discoporella denticulata, Mactra crassidens, M. subpa- 

 rilis, Natica caroliaiana, N. percallosa, Pectunculus carolinensis^ and 

 P. quinquerugatus; from Wilmington, North Carolina, Amphidesma 

 nuculoides, A. protextum, Cardium sublineatum, Cardita abhreviata, 

 Pectunculus carolinensis, and P. aratus. 



Prof. Emmons** found the direction of the drift scratches and scor- 

 ings of rock, in the eastern part of New York, confoiming to that of 



■■' Jour, Acad. Nat. Sci., vol. viii., pt. 1. 



t Am. Jour. Sci. and Arts, vol. xxxlx. 



X Geo. Sur. of Delaware, 1841. 



§ Geo. of Massachusetts, 1841. 



II Am. Jour. Sci. and Arts, vol. xl. 



IT Am. Jour. Sci. and Arts, vol. xli. 



=-' Geo. 2d Dist. N. Y., 1842. 



