FAMILY V. CYPRINID.E. 67 



57. Nototropis chihuahua Woolman. 



Notropis chihuahua Woolman, Amer. Nat., March, 1892, 260; Rio 

 Conchos, Chihuahua: Woolman, Bull. U. S. Fish Comm., 1894, 

 58; Rio Conchos, Chihuahua: Jordan & Evermann, Bull. 47, 

 U. S. Nat. Mus., 1896, 265: Meek, Field Col. Mus. Pub., 65, 

 1902, 83; Chihuahua; San Andres; Santa Rosalia; Jimenez. 

 Headwaters of the Rio Conchos in Chihuahua, where it is very 

 abundant. 



FIG. 18. NOTOTROPIS CHIHUAHUA Woolman. 



No. 44151, U. S. National Museum. 



Head 4; depth 4; D. 8; A. 7; scales 6-33 to 37-3. Body rather 

 robust, little compressed, the back little elevated; head large; snout 

 blunt, its length $% in -head; mouth slightly oblique, the maxillary 

 scarcely reaching vertical from anterior margin of the eye; eye 3^ 

 in head; origin of the dorsal midway between tip of snout and base 

 of caudal ; about 1 6 scales in a series between nape and dorsal fin ; 

 base of dorsal fin 2 in head, its longest ray i/^ in head; base of anal 

 2 in head; caudal fin forked; caudal peduncle slender, its least 

 depth af in head; lateral line nearly straight, complete. 



Color light brown ; scales above dark edged ; numerous round dark 

 dots on upper half of the body, the largest sometimes nearly the size 

 of pupil; the spots unequal and irregularly placed; a plumbeous 

 lateral band from eye through snout, ending in a black caudal spot; 

 fins plain. Length about 2% inches. 



One of the most conspicuously marked species in the genus. 

 Spawning season the last of June and the early part of July. 



58. Nototropis boucardi (Gtinther). SALMICHI. 



Leuciscus boucardi Giinther, Cat., vn, 485, 1868; Cuernavaca. 

 Rutilus boucardi Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 

 1896, 247. 



