206 
IOWA ACADEMY OF SCIENCES 
’ Gastekopoda. 
Bellerophon (probably carhonarius) . Cox X2&X4 
Naticopsis altonensis. McCbesney X2&X4 
Pleurotomaria car^onaria. Norwood & Pratten 6 
Straparollus catilloides. Conrad X2&X4 
Cephalopoda. 
Nautilus. Sp. Undt 2&4 
OrtTioceras cribrosum. Geinitz 
Orthoceras rushense. McCbesney 2«!fe4 
Arthropoda, 
PMllipsia major. Sbumard 8 
The nomenclature of this list is in accordance with Mr. Stuart Wellis as 
used in his “Bibliographic Index of North American Carboniferous Invertebrates”. 
(See Bui. U. S. Geol. Surv. No. 153.) 
