April, 1846.] 43 



29. Oxyrrhina ziphodon, Ag. Eocene and Miocene, S. C. Gypsum of 



Montmartre. Ag. 



30. Oxyrrhina hastalis, Ag. N. Jersey, and Eocene, S. C. Swiss molasse 



Eocene, Ag. 



31. Oxyrrhina mantelli, Ag. Eocene, S. C. Chalk of England. Ag. 



32. Oxyrrhina, (new ?) Eocene, S. C. 



33. Oxyrrhina, (new ?) Eocene, S. C. 



34. Oxyrrhina retrofiexa, Ag. Miocene, S. C. Locality unknown. Ag. 



35. Pristis acutidens, Ag. Eocene, S. 0. Bagshot, England. Eocene. Ag. 



Rays. 



36. 1. Myliobates micropleurus, Ag. Eocene, S. C. London clay. Ag. 

 2. Myliobates Owenii, Ag. Eocene, S. C. London clay. Ag. 



Palatum Piscium. 



I have several specimens of what is figured by W. Smith among the spe- 

 cimens from the crag of England (in his prints on colored paper of " Strata 

 Identified by Organized Fossils," 1816,) as palates of fishes. I suppose 

 these are what Mr. I. Lea speaks of (in Contributions to Geology, p. 203,) 

 as found in the sand of Claiborne, and as figured by Brander. Some of them 

 are mineralized by iron, and others calcareous ; all which I hare are from 

 the Eocene. 



Among my collection from the Eocene of South Carolina, I have several 

 fragments of claws and casts of varieties of Cancer. Two specimens are 

 well marked, and resemble closely Cancer punctulatus, Desmarest, and 

 Cancer Leachii, Desm. 



I have lately procured a tolerably good specimen of the remarkable fossil 

 sent to the Academy by Dr. E. Ravenel, of S. Carolina, resembling somewhat 

 a Belemnite. I would respectfully suggest the probability of its being the 

 spine of Myriacanthus paradoxus, (Agassiz,) deprived, by attrition, of its 

 tubercles. Agassiz, pi. 6, vol. iii, and p. 38, vol. iii. 



