IRIE yA, WACO 
Fig. 1, 2, 4, 6-8. Prioniodus radiatus, Hinde. X 25. 
Fig. 3. Prioniodus retusus, Bryant. X 25. 
Fig. 5. Prioniodus pravus, Bryant. X 25. 
Fig. 9. Prioniodus spatulatus, BiayamtsmeeZ5: 
Fig. 10. Prioniodus macrodentus, Bryant. %X 25. 
Originals are from the Conodont bed (Genesee) in Eighteen Mile 
Creek, Erie County, N. Y. 
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