No. 186.] 



91 



PORTAGE GROUP. 



Original Names. Corrected Names, Remarks, etc. 

 Pasje 



Goniatites bicostatus 245 



Goniatites sinuosus 243,245 



Luciiia retusa 245 



Nucula lineolata 245 



Ortliis tenuistriata 245 



Orthoceras aciculum 243 



Pinnopsis aCUtirOStriS 243 Perhaps generically identical with Am- 



bonychia. 



Pinnopsis ornatus 243 



Ungulina Suborbicularis 243 Generic relations undetermined. 



ORGANIC REMAINS OP THE CHEMUNG GROUP. 



Atrypa contracta 271 Rhynclionella contracta. 



Atrypa dumOSa 271 Perhaps identical with Atrypa aspera. 



Atrypa duplicata 271 Rhynclionella duplicata. 



Atrypa eximia 271 Rhynclionella eximia. 



Atrypa liystrix 271 



Atrypa laticosta 271 Rhynclionella laticosta. 



Atrypa laticosta, t^ar 271 Rhynclionella laticosta, ?;ar. 



Atrypa mesacostalis ._ 271 Rhynclionella mesacostalis. 



Atrypa polita 271 Merista polita. 



Atrypa'? tenuilineata 271 



Atrypa tribulis , 271 Atrypa reticularis. 



Avicula acanthoptera 263 Pteronites acanthoptera. 



Avicula damoniensis ? . 262 Pteronites'? cliemungensis. 



Avicula longispina.. 262 Pteronites longispina. 



Avicula pectiniformis 262 Aviculopecten pecteniformis. 



Avicula signata 264 Aviculopecten signatus. 



Avicula spinigera 262 Pteronites spinigera. 



Calymene nupera 262 Phacops nupera. 



Perhaps a variety of P. bufo. 



Delthyris acanthota . _ 270 Spirifer acanthotus. 



Deltliyris acuminata 270 Spirifer acuminatus. 



Delthyris cuspidata 270 Spirifer cuspidatus. 



Delthyris disjuncta 269 Spirifer disjunctus ['?]. 



Delthyris inermis 270 Spirifer inermis. 



Delthyris mesacostalis 269 Spirifer mesacostalis. 



Delthyris mesastrialis 269 Spirifer mesastrialis. 



Delthyris mucronata 270 Spirifer mucronatus. 



Filicites'? 273,275 Plumalina plumosa. 



Lima glaber „_ 264 Genus? 



