Dye Ab a WII 
Fig. 1. Prioniodus obtusus, Bryant. X 30. 
Fig. 2. Prioniodus immersus, Hinde. X 25. 
Fig. 3. Prioniodus clavatus, Hinde. X 30. 
Fig. 4. Prioniodus spicatus, Hinde. X 30 
Fig. 5. Prioniodus radiatus, Hinde. X 30. 
Fig. 6. Prioniodus clavatus, Hinde. ™X 25 
Fig. 7. Prioniodus cristatus, Bryant. X 40. 
Fig. 8. Prioniodus colligatus, Bryant. X 30. 
Originals are from the Conodont bed (Genesee) in Eighteen Mile 
Creek, Erie County, N. Y. 
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