Jordan and Evermann. — Fishes of North America. 245 



dusky shaded; scales with some browu dots, but uot profusely dusted 

 with black specks as iu the preceding species. Length 8 inches. Lakes 

 of southeastern Oregon (Klamath, Warner, Goose, etc.), the old Lake 

 Idaho; locally abundant ; not found in Lake Lahontan, Lake Bonneville, 

 nor in the Sacramento Valley. Very distinct from 11. aijmmcirxma, the 

 scales larger, the color less opaque. It is, however, close to liittihis oliva- 

 ccitft, in appearance, but is more slender and has larger scales, besides the 

 difference in the teeth, (hicolor, two-colored.) 



Ahjnme,, bicolor* Girarp, Proc. Ac Nat. Sci. Phila., 185G, 183, Klamath Lake. (Type, No. 



2750. Coll. Dr. ,1. S. Newberry.) 

 r AJgmisea milka,-f Cope, Proc. Ac. Nat. Sci. Phila., 1864, 282, "Texas ; " .Tordan, Proc. U. S. 



Nat. Mus., 1885, 121. 

 Myhlencns thalassiiius,l Cope, Proc. Ac. Nat. Sci. Pliila., 188.3, 143, Goose Lake, Oregon. 

 Leucisens hicolor, Guntiier, Gat., vil, 24.'j, 18G8. 

 Letieosbicolor, JoRnAN & IIenshaw, I. c, 103, 1878. 

 Leiteusbicolor, Jordan Si Gilbert, Synopsis, 246, 1883. 

 Lencus inUicKs, Jorda.n & Gilbert, Synopsis, 246, 1883. 



387. RUTILl'S SYMMETRICUS (Baird & Girard). 



Head 31^; depth 41, ; eye 3 to 4. D.8; A.8; scales 10 to 14-52 to 67-5, 

 extremely variable, usually 53 to 56; teeth .5-4. Body rather elongate, 

 moderately compressed, not elevated. Head short, rather slender ; mouth 

 small, little oblique, the lower jaw included. Eye large, anterior ; snout 

 usually a little convex , a little longer than eye ; mouth not quite terminal. 

 Lateral line strongly decnrved. Dorsal distinctly behind ventrals. Col- 

 oration, dusky above, sides pale, scales more or less dotted with black; 

 bright-colored specimens have a dark lateral band from snout to middle 

 of caudal, a second dark band or series of spots below lateral line ceasing 

 at vent ; axils orange ; cheeks silvery. Color much brighter in specimens 

 from clear brooks (as Ties Pinos Creek, San Benito County, California). 

 Length 5 inches. Elvers of California and Nevada, probably generally 

 distributed. Originally known from the San Joaquin and Merced 

 rivers and Kern Lake. It is also very common iu streams of the coast 

 ranges from San Francisco to Salinas liiver, being in the brooks of Santa 

 Clara Valley the most abundant flsh. Other specimens corresponding 

 rather to ohenus occur in streams tributary to Owen Lake, Mohave River, 

 Washoe Lake, Truckee River, Humboldt River, etc., (the basin of the 

 Quaternary Lake Lahontan.). Still other records are from western and 

 northern Utah, in the Lake Bonneville basin. If three species are con- 

 founded under the name symmetricus, they are likely to be fiiintDictricus 

 (=forino8us), from streams west of the SierraNevada, ohcsiis from the basin 



*The following notes have been made on the types of Algaiisea hicolor : Length 7 inches ; head 

 4, depth 41,-2; eye 43^.2 in head. Kyo shorter than snout; snout pointed; maxillary not reaching 

 eye. Lower jaw liftle projecting. D. 9 ; A. 8; scales 9-48-G. Scales larger than iu types of 

 obesa, from w hich it is distinct. 



t A specimen from unknown locality has been described na Algansea antica, Cope: Head acute, 

 Rubconic; snout rather pointed; insertion of dorsal midway between pupil and base of caudal. 

 Mouth small, the jaws equal; maxillary 4 in head, not reaching orbit. Lateral lino decurved. 

 Caudal short, little forked; pectoral short, not reaching ventrals. Eye 5 in head. Purplish 

 slate above, yellow below; sides of head and edges of scales punotulate. Head 85; depth 3§; 

 D. 8 ; A. 8 ; scales 10-40-6 ; teeth 4-.5, littlo hooked, with a very broad grinding surface. Length 

 5 inches. "Texas;" here described from the original type, its exact origin unknown, very 

 likely uot from Texas. It is probably identical with Ji. hicolor or li. synmiclriciig. « 



}Ri((i7ii.'! (/i<i?(is,vi)i».< possesses tin- following characters: Slenderer than ii*. puroroiins, the color 

 a light translucent green, quite unlike the heavy olivaceous of the latter. Head S%: depth A}.^; 

 A. 9; scales 9-46-4; teeth 4-5. Length G inches. One specimen known, from Goose Lake, Oregon. 

 probably identical with Ii. hicolor. 



