EASTMAN: CARBONIFEROUS SHARKS. 97 



LIST OF CARBONIFEROUS VERTEBRATES OCCURRING AT 

 MAZON CREEK, ILLINOIS. 



AMPHIBIA. 



1. Amphibamus grandiceps Cope. 



ELASMOBRANCHII. 



2. Pleuracanthus (Diplodus) compressus Newb. (Occurs also at Linton, Ohio, and 



in Indiana.) 



3. " " /«f»s Newb. (Occurs also in Obio and Indiana.) 



4. " " lucasi Hay 



5. Acanthodes beec/ieri, sp. nov. 



6. " 77iarshi, sp. nov. 



7. Campodus scitulus (St. J. and W.)Jide 0. H. St. John. 



8. Ctenodus sp. indes. 



DIPNOI. 



9. Sage 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 



nodus fo/iatus Cope. 



1 



, 1 



lacovianus Cope.^ 



occidentalis (Newb. and W.)^ (Occurs also at Linton, Ohio.) 



quadratus (Newb.) i (Occurs also at Linton, Ohio.) 



guincundatus Cope.^ 



reticulatus (Newb. and W.)i 



textilis Hay.i 



CROSSOPTERYGIL 



16. Rhizodopsis (?) mazonius Hay.^ 



17. Coelacanthus exiguus, Eastm. 



18. " robustus Newb.^ (Occurs also at Linton, Ohio.) 



ACTINOPTERYGII. 



19. Euri/lepis, sp. indet.,^rfe J. S. Newberry. 



20. Rhadinichthi/s gracilis (Newb. and W.). 



21. Elomchthys hypsilepis Hay. 



22. " peltigerus Newb.^ (Occurs also at Linton, Ohio) 



23. " perpennatus Eastm. 



24. Platysomus circidaris Newb. and W. 

 2.5. " lacovianus Cope. 



26. " orhicidaris Newb. and W. 



1 Founded on scales. 



■^ Including also the so-called " Ambli/pterus macropterus " Newb. and W. 



