OG. BRYTTUS, 259 



teeth on the palatine, bones*. One dorsai, with ten (occasionally with 

 nine) spines, the anal fin with three. Op(*i'culum with a rounded, 

 membranaceous, coloui'ed lobe above the angle ; proeoperculum entire. 

 Scales moderate. 



Fresh waters of the Nearctic region. 



1. Bryttus punctatus. 



Brjiitus punctatus, Cuv. ^' Val. vii. p. 462. 

 unicolor, Cuv. ^ Val. vii. p. 464. 



D. i^. A.-i. L. kt. 35. 



U 8-9 



The height of the body is one-half of the total length (without 

 caudal fin) ; the length of the head one-third. Caudalis emarginate, 

 with rounded lobes ; the first ray of the ventral pointed. Brownish 

 green, with parallel series of round black spots; cheeks black - 

 spotted. Angle and inferior limb of operculum blackish. Ventrals 

 black. {Val.) 



Fresh waters of North America. 



2. Brjrttus albulus. 

 Girard, U.S. Pacif. R. R. Exp. Fishes, p. 19. pi. 6. f. 1-4. 

 B. 5. D.|5. A.^. L. transv. 6/16. 



The height 6f the body is 2|, the length of the head 3| in the 

 total length. The upper maxillary reaches to the anterior margin 

 of the orbit. Pale reddish brown, dorsal with a black patch (not 

 marked in the figure). (Gir.) 



Eio Blanco (Texas). 



3. Bryttus longulus. 



Pomotis longulus, Baird 8f Girard, Proc. Acad. Nat. Sc. Philad. 1853, 

 p. 391, and in Marcifs Explor. Red River, p. 245. pi. 12. 



Bryttus longulus, Baird ^ Girard, I. c. 1854, p. 25. 



Callim-us fomiosus, Girard, U. S. Pacif. R. R. Exped. Fishes, p. 14. 

 pi. 5. f. 1-4. 



longulus, Girard, I. c. p. IG. pi. 5. f. 5-8, pi. 6. f. 5-8. 



The height of the body is about three times in the total length, 

 the length of the head 3| ; the upper maxillary does not extend to 

 the vertical from the posterior margin of the eye. Keddish brown ; 

 the dorsal and anal with a sixbcircular large black spot behind; 

 ventrals and the external half of the anal yellowish. (i5. ^ G.) 



Red River ; fresh waters of Texas and Ai'kansas. 



* Sir J. Richardson probably made a mistake iu translating the diagnosis of 

 Cuvier, if he attributes to this genus "a narrow band of villiform teeth on tl)i' 

 tongue." {Ichfhyol. p. 277.) 



s 2 



