NORTH AJIERICAN FRESH-WATER FISHES. 9 



CYPRINID.E. Plate 3. 



HYBOPSIS KENTUCKIENSIS {Bafinesque) . 

 CERATICHTHYS BLENNIOIDES. Baird. 



The Common Horny-lieacl or River Chub ; Indian Chub ; Jerker. 



Fig. 1. Side view of skull. 



2. Top view (if skull. 



3. Lower view of skull. 



4. Eear view of skull. 



5. Outline of section of body at dorsal fin. 



6. Scale from the lateral line. 



7. Scale from above the lateral line. 



8. Scale from below the lateral Hue. 



9. Young example. 



10. Outline of body seen from above. 



11. Male example, not quite fidl grown. 



12. Lower pharyngeal bones and teeth. 



13. Right lower pharyngeal. 



The Horny-head or River Chub is tlie most widely diffused of all our fresh- 

 water fishes, abounding in almost all waters from New York to Montana, and 

 southward to South Carolina and Texas. It frequents rivers and creeks rather 

 small brooks. It has no economic A'alue, but is often used as bait for the Black 

 Bass. 



