APPENDIX. 87 
Ostrea Virginiana, Gmel. 
Bulla acuminata, Sow. 
* Venus rustica? Sow. 
+ Pectunculus subovatus, Say. 
+ Panopea Faujasil. 
EOCENE, OR LONDON CLAY. 
Corbis lamellosa, Lam. 
Cardita planicosta, Blain. 
Bulimus terebellatus, Lam. 
§ Solarium patulum, Lam. 
| Solarium canaliculatum, Lam. 
Fistulana elongata, Desh. 
CRETACEOUS GROUP. 
Pecten quinquecostatus. 
Although the preceding list embraces all that can at present be positively identi- 
fied as common to the strata of Europe and America, there can be no question that 
further observation will detect many others, not only in the tertiary beds, but also 
in the cretaceous series. 
No. IV. 
Table, shewing the Organic Remains common to'the older and newer Cretaceous 
strata, and’ to the latter and the Eocene, (London clay,) in the United States: 
Formations. | Range of Species. 
Plagiostoma dumosum, 
Eocene, or London ) Ostrea selleformis, 
clay, Pecten calvatus, 
Scutella Met, RSeatela Pym TT 
— 7 Plagiostoma dumosum, - dumosum, 
Ostrea sellzeformis, 
Pecten calvatus, 
Gryphea vomer, 
Ostrea eretacea, 
Ostrea panda, 
Seutella Lyelli. 
C Gryphea vomer, 
Ostrea cretacea, 
Newer cretaceous 
Strata. 
Older Cretaceous cary 
or Ferruginous aay Ostrea panda, 
* Isocardia fraterna, Say. T P. variabilis, Sowerby. } P. reflexa, Say. 
§ S. serobiculatum, Conrad, || S. ornatum, Lea, 
q{ The geological analogies between America and Europe are conspicuous in all the forma- 
tions. Vide Prof. Buckland’s note in the American Journal of Science, vol. iv, p. 186. See 
also the very interesting observations contained in chap. I. of Mr. Maclure’s Geology of the 
United States, | 
