Jordan and Evermann. — Fishes of North America. 271 



veutrals. Fins all rather small. Snout highly prickly iu spring males. 

 Color dark ; sides with about 8 to 10 more or less conspicuous crossbars; 

 head mostly black in males ; fins all with the middle part dusky or black, 

 the tips milk-white, the veutrals and the anal notably so ; females paler, 

 the lateral bars narrower and shorter, the fins with less black. Length 2\ 

 inches. Chihuahua River, our specimens taken in the original locality 

 by A. J. Woolman. {oniatus, adorned.) 



Codoma omala, GiRARD, Ptoc. Ac. Nat. Sci. Phila., 1856, 195, Chihuahua River; and U.S. 



Mex. Boiiiul. Surv., Ichth., 53, pi. 29, figs. 22-25, 1859 ; this species and Nolropis azlecm both 



well figured by Girard. (Type, No. 91. Coll. .1. Potts.) 

 Cliola omnia, Jordan & Gilbeut, Synopsis, 173, 1883. 



Subgenus MONIANA, Girard. 



430. NOTROPIS FOBMOSUS (Girard). 



Head 3f ; depth 31 ; eye 3^. D. 8 ; A. 8 ; scales 7-43-4, 23 before dorsal ; 

 teeth 4-4. Body elliptic, compressed, the form about as in X lutrensis. 

 Mouth moderate, oblique, the ma.xillary 31 in head. Dorsal fin rather 

 high. Sides with a dusky streak, a brown spot at base of caudal. Length 

 2i inches. Rio Mimbres, Chihuahua. Well distinguished from K. lutren- 

 sis and related forms by the small size of the scales, (formosua, comely.) 



Monianaformosa, Gibard, Proc. Ac. Nat.. Sci. Phila., 1856, 201, Rio Mimbres, Chihuahua. 

 Cliola formossa, JORDAN <& Gilbert, Synopsis, 174, 1883. 

 Notropis formosus, Jordan, Proc. U. S. Nat. Mus., 1885, 125. 



431. NOTROPIS FRIGIDUS (Girard). 



Head 41 ; depth 31 to 4; eye moderate, 4 in head. D. 9 ; A. 9. ; lateral 

 line 37. Body moderately elongate, compressed, with long caudal pedun- 

 cle. Head moderate, the snout subconical, somewhat pointed. Mouth 

 rather large, oblique, the maxillary scarcely extending to orbit. Lateral 

 line decurved. Length 3i inches. Rio Frio, Texas ; differing from X. 

 lutrensis in the smaller scales, (frigidus, cold ; in Spanish, frio.) 



Moniana frigida, Gibard, Proc. Ac. Nat. Sci. Phila., 1856, 200, Rio Frio, Texas. (Type, No. 



124. Coll. Clark.) 

 Cliolaleonina, Jordan & Gilbert, Synopsis, 174, 1883, not of Girard. 



432. NOTROPIS LUTRENSIS (Baird A; Girard). 



HeadSf; depth 3 (adult) to 4; eye small, 4. D. 7or8; A.8; scales 6-35-2; 

 teeth 4-4. Body oblong, elevated, strongly compressed, the back arched; 

 caudal peduncle rather slender. Head stout and deep, its upper outline 

 depressed, the nape elevated, forming an angle, so that the profile is 

 somewhat concave. Young more slender, the form variously elongate or 

 elliptical. Mouth rather large, quite oblique, the lower jaw included. 

 Lateral line strongly decurved. Thirteen scales in front of dorsal. Males 

 profusely tuberculate in spring. Colors in life brilliant, steel-blue; the 

 lower parts silvery; the belly orange-red in the males; a conspicuous 

 violet-colored crescent behind the shoulders, followed by a crimson cres- 

 cent; fins reddish, the anal and caudal blood-red. Female plain greenish, 

 the fins unspotted. Length 2f inches. Soatbern Illinois to South Dakota, 



