1 66 Storer's Synopsis of the Fishes of North America. 



37. Leuciscus obesus, Storer. 

 Body short, chubby. Head large. Abdominal arch very convex. Dorsal ridge green ; 

 sides yellow, with deep lilac intermixed, so as to appear like a longitudinal band of the latter 

 color; lower portion of the sides bluish ; top of the head fuliginous. Pupils black, irides 

 golden. Lateral line assumes the curve of the body. Fins straw-colored. 

 D. (?). P. (.')• V. (?). A. O C (?) Length, 3i inches. 

 Florence, Alabama, Storer. 



Leuciscus obesus, Storer, Proceed. Boat. Soc. Nat. Hist., July, 1S45. 



3S. Leuciscus gibbosus, Storer. 



Body very convex above. All upper portion of body green ; lower portion of sides a light 

 lilac color ; fins greenish yellow ; opercles light, with lilac tints. 

 D. (?). P. (?)'. V. (?). A. (?). C. (?). Length, 4 inches. 

 Tuscaloosa, Alabama, Storer. 



Leuciscus gibbosus, Storer, Proceed. Bost. Soc. Nat. Hist., July, 1345. 



GENUS IV. PIMEPHALES, Raf. 



Body oblong, thick, scaly. Vent posterior, nearer to the tail. Head scale- 

 less, fleshy all over, even over the gill-covers, rounded, convex, and short. 

 Mouth terminal, small, toothless, with hard, cartilaginous lips. Opercle double, 

 three branchial rays. Nostrils simple. Dorsal fin opposite the abdominals, 

 with the first ray simple and cartilaginous. Abdominal fins with eight rays. 



1. Pimephales promelas, Raf. 



Diameter one fourth of the length, body olivaceous-silvery, head blackish, snout truncated 

 and with soft warts ; fins whitish ; dorsal with a large, irregular black spot at its anterior 

 base, with eight forked rays, and one simple, shorter, obtuse, hard ; anal with eight rays ; 

 lateral line flexuous and raised at the base ; tail Iunulate. 



D. 1-8. P. 15. V. 7. A. 8. C. 20. Length, 3 inches. 



Kentucky, Ohio, Raf., Kirtland. 



Pimephales promelas, Raf., Ichth. Ohien., p. 53. 

 " " Kirtland's Report, p. 194. 



" " Black-headed Flat-head, Kirtland, Bost. Journ. Nat. Hist., ill. p. 475, pi. 27, fig 2. 



GENUS V. CATOSTOMUS, Lesueur. 



Back with a single dorsal fin. Gill-membrane three-rayed. Head and 

 opercula smooth. Jaws toothless and retractile. Mouth beneath the snout, 



