68 Cincinnati Society of Natural History. 



Genus Phragmoceras,'&Yodev\^. Gr. phragmos ; keras. 



135 Phragmoceras Hector, Billings. Mythological. 



Family Lituitidce. L. litmcs, a trumpet. 



Genus Trocholites, Conrad. Gr. troches, circular; lithos, a stone. 



136 Trocholites ammonius, Conrad. L. Ammon, a name of Jupiter. 



Fossil named from resemblance to the horns on the statue. 



Family Trochoceratidce. Gr. trochos, a wheel; keras. , 



Genus Trochoceras, Barrande. Gr. trochos ; keras. 



137 Trochoceras Baeri, Meek and Wortheu. 



Famil}^ Cyrtocerafidce. Gr. kurtos, curved; keras. 



Genus Cyrtoceras, Goldfuss. Gr. ^-wr^os, curved; keras. 



138 Cyrtoceras Vallandighami. S. A. Miller. 



139 magister, S. A. Miller. L. magister, a leader. 



140 ventricosum, S. A. Miller. L. ventricosus, bulging out. 



141 amoenum, S. A. Miller. L. amoeniis, charming. 



Class Gasteropoda. Gr. gaster, stomach; j^ous, j^odos, foot. 

 Order Prosobranchiata. Proson, before; bragchia, a gill. 

 Family Muricidm. L. murex, muricis, a shell-fish. 



Genus Fusispira, Hall. Jj.fusus, a spindle; S2)ira, a spire. 



142 Fusispira^ subfusiformis, Hall. L. sub, fusus, forma. 



143 • terebriformis, Hall. L. terebra, an angnv; forma. 



Order EniPHiDOGLOssA. Hhipis, rhip)idos, a fan; glossa, tongue. 

 Family Bellerophontid^. M^'thological. 



Genus Bellerophon, Montfort. M3-thological. 



144 Bellerophon bilobatus, Sowerby. L. bis, twice; Gr. lobos, a lobe. 



145 Mohri, S. A. Miller. 



Genus Bucania, Hall. Gr. bukane, a trumpet. 



146 Bucania expansa, Hall. L. expansus, spread. 



147 bidorsata, Hall. L. bis, twice; dorsum, ridge. 



148 costata, James. L. costatus, ribbed. 



Genus Carinaropsis, Hall. L. carina, a keel; Gr. opsis, appearance. 



149 Carinaropsis patelliformis, Hall. lu. patella, dish; forma. 



