31. CYPJRINID^E SQUALiUS. 237 



curve, running unusually low. Yellowish; above dusky, with darker 

 spots and narrow dark lines. Head 4^. D. 8 ; A. 8. Utah Basin ; ex- 

 act locality not known. (Girard.) 



(Tigoma lineata Girard, Proc. Acad. Nat. Sci. Pliila. 1856, 206, and U. S. Pac. R. R. 

 Surv. x, 292.) 



383. S. gracilis (Grd.) J. & G. 



Described as still slenderer and with still smaller scales than in S. 

 lineatus. Lateral line little decurved. Snout subconical, rather short. 

 Coloration plain, dusky above, paler below. D. 8 ; A. 7. Exact locality 

 unknown; probably from Utah. (Girard.} 



(Tigoma ymciUs Grd. Proc. Acad. Nat. Sci. Phila. 1850, 206.) 



384. S. conformis (B. &. G.) J. & G. 



Body robust, rather elevated. Head moderate, the mouth rather 

 small, oblique, maxillary not quite reaching eye. Eye moderate, nearly 

 5 in head. Dorsal tin considerably behind ventrals. Scales large. 

 Lateral line decurved. Purplish brown above, yellowish below. Head 

 3; depth 3. D. 8; A. 8; scales 9-52-5; teeth 2, 4-?, 1 L. 4 inches. 

 Tulare Valley, California. 



(Lavinia conformis B. & G. Proc. Acad. Nat. Sci. Phila. 1854, 137: Tigoma conformis 

 Grd. U. S. Pac. R. R. Surv. x, 289.) 



385. S. toicoBor (Girard) J. & G. 



Body robust, heavy anteriorly, tapering backward. Head long. 

 Mouth large, the maxillary reaching to the eye. Eye small, 6 in head. 

 Scales rather large. Lateral line decurved. Dorsal tin inserted almost 

 directly over ventrals. Fins rather small. Dusky above, sides and 

 below silvery. Head 3|| ; depth 3f . D. 8 ; A. 8 ; scales 13-64-6 ; teeth 

 2, 5-5, 2. L. 12 inches. Klamath Lake, Oregon. 



( Tiyoma bicolor Grd. Proc. Acad. Nat, Sci. Pliila. 1856, 206, and U. S. Pac. R. R. 

 Surv. x, 283.) 



386. . obesus (Grd.) J. & G. 



Body short and compact, the caudal peduncle rather slender. Head 

 small, the snout short and rounded. Mouth moderate, maxillary reach- 

 ing to eye. Eye moderate, 4 in head. Dorsal fin smaller than anal, 

 nearly median. Scales moderate. Lateral line little deflected. Bluish 

 gray above, yellowish below. Head 4^. D. 8 ; A. 9. Salt Lake Valley. 

 (Girard.) 



(Tigoma obesa Grd. Proc. Acad. Nat, Sci. Phila. 1856, 206, and U. S. Pac. R. R. Surv. 

 x, 290.) 



