AMERICAN NATURAL HISTORY. 



9 



PALAEONTOLOGY. 



Agassiz (L.). Report on the vertebrate fossils exhibited to the as- 

 sociation. (Abstract.)— -Proc. Amer. Assoc. Adv. Sc. v. 

 1851, 178. (74 



Bouve (T. T.). Descriptions of a number of new species of fossil 

 echinoderms, from the lower tertiary rocks of Georgia.— 

 Proc. Bost. Soc. Nat. Hist. iv. 1851, 2. (75 

 New sp. Catopygus patelliformis, | ^fmiaster Conradi. 



DAWSON (J. W.). Notice of the occurence of upright calamites 

 near Pictou, Nova Scotia. — - Quart. Journ. Geol. Sc. L. vil 

 1851, 194, (76 



Edwards (Milne) et Haime (Jules). Monographic des Polypiers 

 fossiles des Terrains palaeozoiques, precedee d'un Tableau 

 general de la classification des Polypes. — Arch. Mus. Hist. 



Nat. v. 1851. 4to. PI. i. 



New American species. 



Protaraea (n. g.) Verneuili. 

 Plasmopora follis. 

 Lyellia (n. g.) Americana. 

 Favosites Troosti. 

 Michelinia convexa. 

 Chaetetes Dalii. 



tuberculatus. 



rugosus. 



milleporaceus. 

 Dekayia (n. g.) aspera. 

 Syringopora tabulata. 

 Chonostegites (n. g.) Clappi. 

 Cyathaxonia profunda. 

 Zaphrentis centralis. 



Rafinesquii. 



cliffordana. 



Dalii. 



Stokesii. 



Desori. 



epinulosa. 



XX. 



(7 



Alexanderville, Ohio. 

 Perry co. Tenn. 



Drummond Island, (Lake Huron) 

 Iowa. 



Michigan and Indiana. 

 Ohio. 



Ohio and England. 

 Ohio. 



Tennessee and Ohio. 

 Ohio. 



Ohio and Indiana? 



Ohio. 



Ohio. 



Kentucky. 



Ohio. 



Kentucky. 

 Illinois. 



Drummond Island. 

 Perry county, Tennessee 

 Illinois. 



