The Geology of Cincinnati. 5 95 
CEPHALOPODA. 
Cyrtoceras amcenum Miller, Gyroceras baeri (Meek and~ 
7 lysander Billings. Worthen). 
Gomphoceras eos Hall and Whit- 
~ field. 
POSITION UNCERTAIN. 
Solenopora compacta (Billings). 
Strephochetus richmondensis Miller. 
Upper Richmond Fauna. 
Almost nothing is known as yet of these beds, their thick- 
ness, distribution, and fossil contents. The list here given 
is, therefore, probably, very incomplete. Some of the forms 
given in the list of those ranging through the Richmond 
occur in these beds, but perhaps not all given in that list. 
Some of those in the following list may belong to lower beds: 
SPONGILA. 
Heterospongia aspera Ulrich. Heterospongia subramosa Ulrich. 
. knotti Ulrich. 
CQ@LENTERATA. 
Beatricea nodulosa Billings. Labechia montifera Ulrich. 
Le undulata Billings. é ohioensis Nicholson. 
Columinaria alveolata Goldfuss. 
BRACHIOPODA. 
Zygospira kentuckyensis James. 
PELECYPODA. 
Ctenodonta cingulata (Ulrich). 
Opisthoptera casei (Meek and Worthen). 
GASTROPODA. 
Lophospira ampla Ulrich. 
CEPHALOPODA. 
Cyrtocerina madisonensis Miller. 
CRUSTACEA. 
Entomis madisonensis Ulrich. Jonesella digitata Ulrich. 
Eurychilina striatomarginata Leperditia ceecigena Miller. 
(Miller). Primitia medialis Ulrich. 
Isochilina subnodosa Ulrich, 
variety. 
