| Fey & DT Leidky. Del 
Stuclarrs Tith 
checus .rosmarus fossilis. 2% Cochhodus mnitidus, Leidy. 3-16 C. occidentalis, Leidy 17 
18. Helodus gabbus, Leidy. 19-21. Chomatodus venu:us Leidy. 22-23. C. obscurus, heidy. 
~ c 5 5 . c I J 
34»- 268. Palaeobatis insignis, Leidy 27-49. Crenoptychius digitatus, heidy. 
