NORTH AMERICAN FRESH-WATER FISHES. 11 



CYPRINID.E. Plate 5. 



SEMOTILUS ATROMACULATUS {Mitchill). 



CHILONEMUS CEPHALUS. Baird. 



Tlie Horned Dace, ur Creek Cliiib. 



Fig. 1. Side view of skull. 



2. Top view of skull. 



3. Lower view of skull. 



4. Rear view of skull. 



5. Lower pharyngeal bones and teeth. 



6. Right lower pharyngeal. 



7. Outline of section of the body. 



8. Scale from the lateral line. 



9. Scale from above the lateral line. 



10. Scale from below the lateral Hue. 



11. Young example. 



12. Outline of body seen from above. 



13. A partly grown example, probably a female. 



The Horned Dace i.s one of the commonest of onr fresh-water fishes, abound- 

 ing in all suital)le localities from the Housatonic River to Montana, and south- 

 ward to South Carolina, Tennessee, and Arkansas. It especially frequents small 

 brooks and "spring-runs," in which streams it is often the largest inhabitant. 

 It reaches a length of 8 to 10 inches. 



