Jordan and Ever mann, — Fishes of JSTorth America. 307 



Arffi/reim dulcis, Girard, Proc. Ac. Nat. Sci. Phila., 1856, 185, Sweetwater River, Nebraska. 



(Type, No. 210 (20225). Coll. Bowman.) Jokdan, Bull. U. S. Fish Comin., ix, 18811, 8. 

 Bhinichlhys maxUlositu, Coi'E, Proc. Ac. Nat. Sci. Phila., 1864, 278, Kansas. (Coll. Hammond.) 



Cope & Yaukow, Zoiil. Wheeler Survey, v, 644, 1875. 

 Bhinichlliy.f li\i>isiiifHlain(K, Cope, Amer. Nat., July, 1879, 441, tributaries of Rio Grande in 



Colorado and New Mexico. (Type, No. 17084. Coll. Yarrow.) 

 Bhinichlhi/s orrlla, Garman, Science Observer, 1881, 58, Northeastern Wyoming and 



Montana. 

 BhinUhlhi/s IkUuh, Gauman, Science Observer, 1881, 59, Bear River, Ogden, Utah ; scales 



below lateral hue about 14. 

 Bhinichtliys didcis, Jordan & Giluert, Synopsis, 885, 1883 ; Kvermann, Biill. U. S. Fiah Comm., 



XI, 1891, (1892), 42. 

 Bkinichlht/$ maxiUosus and transmontanits, Jordan & Gilbert, Synopsis, 207, 1883. 



508. liHlXICHTHYS SIMUS, Garman. 



Head ii. D. 9 ; A. 8 ; scales 9-60-7. Head depressed above and in front 

 of eyes; snout rather broad, thin, little projecting. First ray of dorsal 

 midway between eye and base of caudal. Clouded brown, a dark lateral 

 stripe, bordered above by a silver one. Coahuila, Mexico. (Garman); 

 not seen by us. {simus, ai/ioc, blunt-nosed, an epithet early applied to 

 Socrates.) 



Bhinichtliys fiiiins, Garman, Science Observer, 1881, 61, Coahuila ; Jordan & Gilbert, Synopsis, 

 886, 1883. 



509. RHINICHTHTS ATRONASUS (Mitchill). 

 (Black-nosep Dace.) 



Head 4 ; depth 4,+ ; eye 1^ in snout, 4i in head. D. 7 ; A. 7 ; lateral line 

 64; teeth 2, 4-4, 2. Body moderately elongate, little compressed. Head 

 moderate, rather broad and flattish above. Snout moderate. Mouth 

 small, horizontal, subterminal, the lower jaw included; barbel minute 

 but probably always present ; upper lip on level of the lower part of 

 pupil ; maxillary not reaching nearly to eye. Eye small, nearly median. 

 Fins rather small; dorsal fin well back, its insertion about midway be- 

 tween nostril aud base of caudal. Scales quite small, somewhat embedded. 

 Color blackish above ; some of the scales irregularly darker ; a black band 

 passing from snout through eye and along sides of body ; a paler streak 

 below this ; belly silvery ; males in spring with the lateral band and the 

 lower fins, and sometimes the whole body, bright crimson ; males iu late 

 sunmier with the lateral band scarlet or orange, the red color growing 

 fainter later in the season. Length 3 inches. New England to Minnesota, 

 Northern Alabama, and Virginia; very abundant in clear brooks aud 

 mountain streams. Excessively variable, running into several varieties, 

 the extremes of which seem like distinct species, (ater, black; nasus, 

 nose. ) 



Cyprinus atronasux, Mitchill, Trans. Lit. and Phil. Soc. N. Y., I, 1815, 460, Wallkill River; 



brooks of New York; Mitchill, Amer. Monthly Mag., i, 1817, December, 289. 

 Ojprinus vitlitlus, Rafinesque, Amer. Monthly Mag. i, 1817, 121, December, Hudson River 



above the Falls. 

 Rhinichlhys atrouastn:, Gf'NTHEK, Cat., vii, I'Jl, 18118; Jordan k Gilbert, Synopsis, 2U8, 1883. 



