GASTEROPODA.— Continued. 
Xenophora - 
Naticopsis - 
Loxonema_ - 
Orthonema - 
Macrocheilus 
Pleurotomaria 
Murchisonia 
Dentalium - 
Bellerophon 
PTEROPODA. 
Conularia - 
Tentaculites 
CEPHALOPODA. 
Orthoceras - 
Trematoceras 
Gomphoceras 
Cyrtoceras - 
Gyroceras” - 
TRILOBITA. 
Dalmanites - 
Phacopse-me- 
Proetus - - 
VERTEBRATA. 
Acanthaspis. 
Acantholepis. 
Asterosteus. 
Cladodus. 
Coccosteus. 
Cyrtacanthus. 
Dinichthys. 
Dipterus. 
Machaeracanthus. 
Macropetalichthys. 
Onychodus. 
Palaeomylus. 
Ptyctodus. 
Rhynchodus. 
THE CORNIFEROUS FAUNA AVA Gf 
WO wRwW PF SS BW 
ee! 
UW SS HW 
PTEROPODA. 
Gonulariay 7=")= eo =e 
dentaculitess y=) -u'-- =) ==) 0 
CEPHALOPODA. 
@rthoceras. (2 v= q-5 = -et 
TRILOBITA, 
Homalonatus - - - - - 2 
a 
The conspicuous elements in the Corniferous fauna, when 
compared with the Oriskany, are the great abundance of corals 
and the large number of fishes. 
There is also a very much 
