XXVlll 
SYSTEMATIC IKDEX. 
Pago 
Family ASCOCEEATID^ 246 
Ascoceras 246 
Glossoceras 253 
Family POTEEIOCERATID^ ' 256 
Poterioceras 256 
^Eremoceras 256 
^Clinoceras 256 
Family CYETOCEEATID^ 262 
Cyrtoceras 262 
s. g. Meloceras 269 
8 . g. Ooceras 312 
SUPPLEMENT. 
Orthoceras 319 
Ascoceras 334 
Gexeea oe Doubtful Affinities. 
Gonioceras 322 
Jovellania 320 
