EASTMAN: CARBONIFEROUS SHARKS. 97 
LIST OF CARBONIFEROUS VERTEBRATES OCCURRING AT 
SSeS 
26. 
MAZON CREEK, ILLINOIS. 
AMPHIBIA. 
. Amphibamus grandiceps Cope. 
ELASMOBRANCHII. 
Pleuracanthus (Diplodus) compressus Newb. (Occurs also at Linton, Ohio, and 
in Indiana.) 
i i latus Newb. (Occurs also in Ohio and Indiana.) 
a < lucasi Hay 
Acanthodes beecheri, sp. nov. 
“ marshi, sp. nov. 
Campodus scitulus (St. J.and W.) jide O. H. St. John. 
DIPNOI. 
. Ctenodus sp. indes. 
. Sagenodus foliatus Cope.} 
si lacovianus Cope.t 
ef occidentalis (Newb. and W.)} (Occurs also at Linton, Ohio.) 
? quadratus (Newb.) } (Occurs also at Linton, Ohio.) 
“  quincunciatus Cope.} 
© reticulatus (Newb. and W.)! 
textilis Hay.} 
CROSSOPTERYGII. 
Rhizodopsis (?) mazonius Hay. 
Coelacanthus exiguus, Eastm. 
« robustus Newb.! (Occurs also at Linton, Ohio.) 
ACTINOPTERYGIL 
. Eurylepis, sp. indet., fide J. S. Newberry. 
Rhadinichthys gracilis (Newb. and W.). 
. Elonichthys hypsilepis Hay. 
se peltigerus Newb.2 (Occurs also at Linton, Ohio). 
nd perpennatus Kastm. 
. Platysomus circularis Newb. and W. 
lacovianus Cope. 
- orbicularis Newb. and W. 
1 Founded on scales. 
2 Including also the so-called “ Amb/ypterus macropterus ”’? Newb. and W. 
