and two species of darters were taken, making about sixteen species 

 in all. 



Notropis chihuahua sp. nov. — Body elongate, back little elevated, 

 rising gradually from snout to front of dorsal; head large; 

 snout blunt ; mouth nearly horizontal, slightly oblique ; maxillary 

 scarcely reaching to front of eye ; eye large, averaging 3f mm. longer 

 than snout, but not quite equal interorbital space ; anterior part of 

 dorsal midway between snout and caudal ; scales deeper than long, not 

 crowded anteriorly ; lateral line straight, nearly every scale with 



Color, light brown above ; edges of scales above the lateral line 

 with small but closely placed black dots ; body also above the lateral 

 line thickly but irregularly sprinkled with dark brown spots, these 

 gradually becoming more numerous toward the median line of the 

 back, where they form a vertebral line; the side of the body with a 

 plumbous lateral stripe, of about the width of the eye; this lateral 

 stripe can be traced through the eye and around the snout, thickly 

 sprinkling the upper lip with small dots, but not touching the lower 

 lip ; the lateral stripe terminates in an irregular spot at base of and 

 between the lobes of the caudal ; sides below the lateral line silvery ; 

 belly, plain white. The fins are plain except the dorsal and caudal 

 which are dusky but without di-tind markings; teeth 4-4; hooked 

 grinding surfaces very narrow. 



Following are measurements of a few specimens in mm., the length 

 being taken from snout to base of caudal fin. 



Length. Head. Depth. Eye. Lat. line. Dorsal. Anal 

 58 15 15— 4 34 8 7 



58 15 15— 4 37 



- ^vellii sp. nov.— Body stout, head large, snout 

 abruptly decurved, back but little elevated, caudal peduncle broad, 

 spinous dorsal low. Body covered with about ten bands, la mm. wide, 

 of a dark purplish cast, olive between ; the first, second and fifth 



