44 



NEW YORK STATE MUSEUM 

 VERTICAL DISTRIBUTION OF SPECIES {continued^ 



Platyceras cf. fornicatum Hall. 



P. leboutillieri nov 



P. cf. nodosum Conrad. . . . 



P. paxillifer nov 



P. tortuosum Hall 



P. lejeunii nov 



P. (Orthonychia) belli 7iov . 



Gastropods 



Holopea cf. antiqua {Vanuxem) . 

 Coelidium hebe {Billings) 



C. egregium {Billings) 



Eotoniaria voltumna {Billings). . 



E. lydia (Billings) 



E. delia {Billings) 



E. ? rotula nov 



Bellerophon plenus Billings. . . . 

 B. (Plectonotus ?) gaspensis nov. 

 Diaphorostoma afifine {Billings) . 



D. desmatum Clarke 



DIVISIONS 



D 



Strophostylus expansus Hall. 



Pelecypods 



Actinopteria communis {Hall) 



A. textilis {Hall) 



Aviculopecten ? incrassatus nov 



Pterinopecten proteus Clarke tnut 



Megambonia crenistriata Clarke 



Mytilarca canadensis Billings 



M. nitida Billings 



Cypricardinia distincta Billings 



Palaeopinna flabellum Hall. 



Modiomorpha varia {Billings) 



Leptodomus canadensis Billings 



Goniophora mediocris Billings 



G. tethys {Billings) 



Conocardium cuneus {Conrad) 



Schizodus ventricosus Billings 



Nuculites 



Glossina acer nov 



Lingula elliptica nov.... 



L. rectilatera Hall 



Orbiculoidea mentis 7tov. 

 O 



Brachiopods 



