FOSSILS OF THE CINCINNATI GROUP. 17 



^ *Orthis plicatella, Hall. 



Orthis puraila, Ulrich. 



1-^ *Orthis retrorsa, Salter. 



Orthis (Zygospira ?) sectostriata, Ulrich. 

 *Orthis sinuata, Hall. 

 Orthis subelegantula, Ulrich. 

 ♦^*Orthis SLibquadrata, Hall. 

 V^Orthis testudinaria, Dalraan. 



*Orthris testudinaria, var. jiigosa, James. 

 Orthis tricenaria, Conrad. 

 *Orthis triplicatella, Meek. 

 t^ *Pholidops cincinnatiensis, Hall. 

 i/ *Ehynchonella capax, Conrad. 



*Rhynchonella capax, var. perlamellosa, Whitfield. 

 *Rhynchonella dentata, Hall. 

 ^ *Schizocrania filosa, Hall. 



Streptorhynchus approximatus, James. 

 *Streptorhynehus elongatus, James. 

 Streptorhynchus filitextus, Hall. 

 Streptorhynchus hallianus, S. A. Miller. 

 *Streptorhynchus neglectus, James. 

 *^"*Streptorhynchus nutans, James. 

 A/ *Streptorhynchus planoconvexus, Hall. 



Strei^torhynchus sinuatus, Emmons. 

 ^ *Streptorhynchus subtentus, Conrad. 



••'Streptorhynchus subtentus, var. planumbonus, Hall. 

 ^' *Streptorhj''nchus sulcatus, Verneuil. 



^Streptorhynchus vetustus, James. 

 O' *Strophomena alternata, Conrad. 



*Strophomena alternata, var. alternistriata, Hall. 

 Strophomena alternata, var. loxorhytis, Meek. 

 ^ *Strophomena alternata, var. nasuta, Conrad. 

 Strophomena camerata, Conrad. 

 Strophomena declivis, James. 

 y Strophomena fracta, Meek. 



Strophomena philomela, Billings. 

 ♦/ *Strophomena rhomboidalis, Wilckens. 



