10 NORTH AMERICAN FRESH-WATER FISHES. 



CYPEINID.E. Plate 4. 



SEMOTILUS BULLARIS [Bafinesq^iie). 



CHILONEMUS CATARRHACTUS. Baird. 



The Ftill-fish, or Roach. 



Fig. 1. Side view of skull. 



2. Top view of skull. 



3. Lower view of skull. 



4. Rear view of skull. 



5. Lower pharyugeal bones and teeth. 



6. Right lower pharyngeal boue. 



7. Outline of section of body before dorsal. 



8. Scale from the lateral line. 



9. Scale from above the lateral line. 



10. Scale from below the lateral line. 



11. Young example. 



12. Outline seen from above. 



13. Female exam])le, nearly adult. 



The Fall-fish frequents deep place.s in clear, cold streams from Quebec 

 southward to the James River, its range not extending west of the Alleghanies. 

 It is especially partial to the pool at the foot of a cascade. It reaches a larger 

 size than any other of the Lh/prinida\ east of the Rocky Mountains specimens 

 of from 16 to 18 inches long being sometimes taken. It is little valued as food. 

 Thoreau says, "The Chub is a soft fish; it tastes like brown paper salted." 



