194 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



LIST OF CARBONIFEROUS FISHES OCCURRING AT MAZON 



GREEK, ILLINOIS. 



ELASMOBRANCHII. 



1. PI eur acanthus (Diplodus) compressus Nevvb. (Occurs also at Linton, Ohio, and 



in Indiana.) 



2. " " latus Newb. (Occurs also at Linton, Ohio, and 



in Indiana.) 



3. " " lucasi Hay. 



4. Acanthodes beecheri Eastm. 



5. " marshi Eastm. 



6. Campodus scitulus (St. J. and W.). 



DIPNOI. 



7. Ctenodus sp. indes. 



8. Sagenodus cristatus Eastm. 



9. " foliatus Cope.i 



10. " lacovianus Cope.i 



11. " occidentalis (Newb. and W.)i (Occurs also at Linton, Ohio.) 



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



13. " qiiincunciatus Cope.^ 



14. " reticulatus (Newb. and W.)i 



15. " textilis Hay.^ 



CROSSOPTERYGIL 



16. Rhizodopsis (?) inazonius Hay.^ 



17. Coelacanthus exiguits Eastm. 



18. " rohustus Newb.i (Occurs also at Linton, Ohio.) 



ACTINOPTERYGH. 



19. Eurylepis, sp. indet. {Jide J. S. Newberry). 



20. Rhadinic/ilhi/s gracilis (Newb. and W.). 



21. Elonicldliijs disjnnctus Eastm. 



22. " hypsilepis Hay. 



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



24. " perpennatus Eastm. 



25. Platysomus circidaris Newb. and W. 



26. " lacovianus Cope. 



27. Cheirodus orbicularis (Newb. and W.). 



1 Founded on scales. 



2 Including also the so-called " Ainblyplerus macropterus " Newb. and W. 



