194 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
LIST OF CARBONIFEROUS FISHES OCCURRING AT MAZON ~ 
GREEK, ILLINOIS. 
ELASMOBRANCHII. 
1. Pleuracanthus (Diplodus) compressus Newb. (Occurs also at Linton, Ohio, and 
in Indiana.) 
2. a 34 latus Newb. (Occurs also at Linton, Ohio, and 
in Indiana.) 
3. oH ve lucasi Hay. 
4. Acanthodes beecheri Eastm. 
5. 3 marshi Kastm. | 
6. Campodus scitulus (St. J. and W.). | 
DIPNOI. 
7. Ctenodus sp. indes. 
8. Sagenodus cristatus Kastm. | 
9. gs foliatus Cope.! | 
10. Se lacovianus Cope.! 
ib - occidentalis (Newb. and W.)! (Occurs also at Linton, Ohio.) 
12: “ quadratus (Newb.)! (Occurs also at Linton, Ohio.) 
13. S quincuhciatus Cope.} 
14. a reticulatus (Newb. and W.)! 
15. i textilis Hay.} 
CROSSOPTERYGILI. 
16. Rhizodopsis (2) mazonius Hay.1 
17. Coelacanthus exiquus Kastm. 
18. re robustus Newb.} (Ozcurs also at Linton, Ohio.) 
ACTINOPTERYGII. 
19. Eurylepis, sp. indet. (fide J. S. Newberry). 
20. Rhadinichthys gracilis (Newb. and W.). 
21. Elonichthys disjunctus Eastm. 
22. = hypsilepis Hay. 
23. peltigerus Newb.” (Occurs also at Linton, Ohio). 
24. : perpennatus Kastm. 
25. Platysomus circularis Newb. and W. f 
26. lacovianus Cope. 
27. Cheirodus orbicularis (Newb. and W.). 
1 Founded on scales. 
2 Including also the so-called “ Amblypterus macropterus’’ Newb. and W. 
