Jordan a)id Evermann. — Fishes of North America. 183 



aa. Scales Biiiall, 70 to 80 in tho lateral line. 



c. Snout short, tho premaxillary spines not fonninK a distinct projectinR nose; dorsal rays 



11; Scales 12-74-11. brkvirostbis, 298. 



cc. Snout long, tho premaxillary spines forming a distinct ]uojectiiig nose, as in C Uorus. 



Scales 12-80-9. luxatus, 299. 



296. CHASMISTES LIORITS, Jordan. 

 (June Sucker of Utah Lake.) 



Head large, 3j iu length; depth about 5. Scales 9-63-8. luterorbital 

 space broad, 2J in head; eye 6 to 7 in head; width of the open mouth 

 3^ in head. D. 11, the fin elevated in front, its longest ray twice the 

 height of the last and about equal to the base of the tin. A. 7. Caudal 

 deeply forked, the lower lobe long; lower fins small. Color dusky 

 above, pale below ; the scales of the back and sides profusely covered 

 with dark punctulations. L. 18 inches. Utah Lake ; very abundant. 

 {Adog, smooth; upoc, margin, referring to the lips.) 



Chasmiiles liurns, Jordan, Bull. U. S. Nat. Mus., Xli, 219, 1878; Utah Lake at Provo, Utah; 

 Jordan & Gilbert, Synopsis, 132,1883. (Type, No. 273G1.) 



297. CHASMISTES CUJUS, Cope. 



(COUIA.) 



Head broad and flat ; upper lip very thin ; lower lip represented by folds 

 on each side, which do not connect around the symphysis ; eye 8^ in head ; 

 interorbital space 4^. D. 12; A. 8. Scales 13-65-11. Color pale olive. 

 Pyramid Lake, Nevada, in deep water. (Cope.) {couia, the Indian name.) 



Chnsmistes cujiis, CoPE,* Proc. Ac. Nat. Sci. Phila., 1883, 149, Pyramid Lake, Nevada. 



29S. CHASMISTES BREVIROSTRIS, Cope. 



Scales 12-74-11. D. 11 ; A. 9. Shorter than C. hixatus, especially the 

 muzzle, and the latter is without the hump produced by the protuberant 

 premaxillary spines. Parietal fontanelle small. Lower lip fold present 

 only on the sides of tho mandible. Body nearly cyliudric. Color dusky 

 above, silvery below; fins colorless. (Cope.) L. 16 inches. Klamath 

 Lake, Oregon, (ftrerts, short ; rostrum, snout.) 



Chasnikles hrerimstrix^ CoPE, American Naturalist, 1879, 785, Klamath Lake, Oregon ; Jordan 

 & Gilbert, Synopsis, 132,1883. 



299. CHASMISTES LUXATUS, Cope. 



Scales 12-80-9. D. 11 ; A. 9. Form elongate. Head long, flat above 

 with a large fontanelle. Mouth terminal, the spines of tho premaxillary 

 projecting so as to form a hump on the*top of the snout. Lower lip a 

 very thin dermal fold, extending entirely around the chin. Color clouded 

 above, with black punctulations, below paler, with red shades in some 

 specimens; fins uncolored. (Cope.) L. 3 feet. Klamath Lake and River, 

 Oregon, (luxatun, put out of joint, referring to the nose.) 

 Chamnisles luxalu)!. Cope, American Naturalist, 1879, 784, Klamath Lake, Oregon ; Jokdan & 

 Gilbert, Synopsis, 132, 1883. 



*This paper "On the Fishes of the Recent and Pliocene Lakes of the Western Part of the 

 Great Basin and of the Idaho Pliocene Lake " contains an important discussion of the fish fauna 

 of Nevada, Oregon, and Idaho, with description of numerous fossil forms not long extinct and 

 closely allied to recent Cyprinidx and Cutostomidx. 



