176 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



**Teetli 1,4-4,1. 



b. Teeth with edj;es more or less serrate or crenate (usually without grinding sur- 

 face). {Cyprinella Girard.*) 

 c. Dorsal fin without conspicuous black blotch on its upper j)03terior rays. 

 d. No conspicuous black spot at base of caudal. 



e. Body very deej), compressed, the dcj)th forming about a third of 

 the length. 



235. C. MBMB>rosa (Grd.) J. & G. 



Body short, the back very much arched. Caudal peduncle robust. 

 Head short aud deep, bluntish. Eye large, 4 in head. Mouth moderate, 

 quite oblique, the jaws about equal, the maxillary nearly reachiug the 

 front of the eye ; the upi)er lip on the level of the pupil. Lateral line 

 decurv^ed. Fins rather low. Coloration plain in spirits. Head 4^ ; 

 depths. D.8; A. 9 ; scales 8-42-5. L. 3.^ inches. Arkansas, etc. {Gi- 

 rard.) 



{Ci/prineUa umlrosa Girard, Proc. Acad. Nat. Sci. Phila. 1856, 197, and U. S. Pac, R. R. 

 Surv. x,26(j.) 



236. C. MitoaMBsa (B. & G.) J. & G. 



Form of the preceding, but the caudal peduncle slender. Eye large, 

 3^ in head. Jaws equal. Lateral line decurved. This species appears 

 to differ from the preceding chiefly in its larger scales. Head 4 ; depth 

 3. D.8; A. 9; scales 6-30-3. L. 3 inches. Eed Eiver, Arkansas. {Gi- 

 rard. ) 



{LeuciscKs huhalinus B. & G. Proc. Acad. Nat. Sci. Phila. 18.53, 391 : Cijimndla httha- 

 lina Girard, U. S. Pac. R. R. Surv. x, 265 : Cyprinella beclcwithi Grd. Proc. Acad. Nat. 

 Sci. Phila. 1856, 267.) 



231'. C. gunnisoBBi (Grd.) J. & G 



Body short and compressed, the back arched, but less so than in the 

 preceding. Head small. Caudal peduncle moderate. Maxillary reach- 

 ing nearly to eye. Eye moderate, 3i in head. Ventrals in advance of 

 dorsal. Coloration i)lain in spirits. Head 4J ; depth 3. D. 8 ; A. 9 ; 

 Lat. 1. 34. L. 2 J inches. Cottonwood Creek, Utah. 



ee. Body slenderer, the depth 3-]— 4^ in length. 



238. C. swavis (Grd.) J. & G. 



Body short, compressed, the back slightly arched. Mouth oblique. 

 Eye 4 in head. Maxillary not quite reaching eye. Scales moderate. 

 Lateral line gently curved. Coloration plain in spirits. " By its gen- 

 eral form and appearance this species establishes a transition between 



* Girard, Proc. Acad. Nat. Sci. Phila. 1856, 196: type Leudscns hubalinus Baird & 

 Girard. (Latiu cyprinella, a little carj).) 



