152 The American Naturalist. [February, 
42-43; D. II, 114 or 123; A I, 83; scales, 16-19-80-100-15 ; eye, 13- 
2 in. snout, 11 to 12in interorbital, 3} to little more than 4in head. All 
the fins pointed, the caudal lobes considerably longer than the head. 
Light brown, with indistinct clouds of darker. 
2. Notropis albeolus E. & E. 
One specimen 73 mm. long. Medicine Hat, Assiniboia. 
Related to N. maculatus and N. heterodon. D.94; <A. 84; scales, 
4~35~—4 ; 15 scales before dorsal; teeth 4-4, 1, 2. 
More slender than heterolepis ; fins all small; origin of dorsal over 
ventral, equidistant from base of middle caudal rays and nares ; scales 
closely imbricated, the exposed edges little higher than long. Lateral 
line decurved, the tubes developed on fewer than ten scales; ventral 
surface entirely white ; a plumbeous lateral band overlaid with silvery ; 
a dark vertebral line from occiput to caudal; sides with a few dark 
specks, dorsal surface more densely specked, the margins of the scales 
darker. 
3. Notropis heterolepis E. & E. 
One specimen 35 mm.long. Fort Quappelle. 
Related to N. heterodon and N. anogenus. D. 9}; A. 93; scales 
5-35-4; 15 scales in front of the dorsal; teeth 4-4; dorsal inserted 
equidistant between base of upper caudal rays and anterior margin of 
eye, behind the last ray of the dorsal; scales loosely imbricated, almost 
imbedded in front of the dorsal; scales along the median line with a 
deep notch near the middle of the posterior margin; the line nearly 
straight; a few black specks along the base of the anal, a dark line 
from anal to caudal; a dark band from tip of snout along the sides to 
the caudal; a conspicuous black curved line at the base of each scale 
of the lateral line; all the scales above the lateral band dotted with 
black; a narrow vertebral line from occiput to dorsal, a broad dusky 
band on the back between the dorsal and caudal, between this and the 
lateral band a lighter band; scales of back with dark markings; 
series of minute black dots along each ray of the dorsal, anal an 
anterior portion of pectoral ; dorsal and caudal quite dark. 
4. Notropis reticulatus E. & E. 
Twenty-four specimens from Fort Quappelle. Thirteen specimens, 
the largest 76 mm. from Brandon. 
Related ' to N. spectrunculus, fretensis, nitidus and topeka. It 
approaches nearest to N. fretensis and topeka. From the former it 
differs chiefly in the larger scales in front of the dorsal and from the 
latter in the naked breast. 
