CYPRINIDA. — XXVI. 61 
rr. No distinct black spot at base of D. in front. 
s. Body rather deep and compressed, the depth 23 to 4} in length. 
124. N. umbratilis (Girard). @ with the body very deep; ? 
comparatively elongate; snout short and blunt; mouth terminal, 
wide, oblique; lower jaw included; eye about 4 in head; 30 scales 
before D. Olivaceous, thickly dusted with black specks; fins in 
& all jet-black ; paler or dusky in Q ; body and fins flushed with red 
in spring. Head 4; depth (male) 22. A.10o0r11. Lat. 1.40. L.3. 
Ill. to Kansas and S., locally common. Very variable. (NV. macro- 
lepidotus Forbes (Ill.) seems to be the same, but with 19 scales 
before D.) (Lat., shady.) 
ss. Body elongate, the depth even in males about 4 the length. 
125. N. lirus Jordan. Very slender; eye 3 in head. Color 
pale, silvery; sides with a band of metallic blue; series of black 
dots on bases of D. and A.; males with red fins. Head 44; depth 
54, A.10. Scales 8-45-4. L. 24. Tenn. and Ala. (Aeupés, pale.) 
gq. Scales comparatively large, not closely imbricated; scales before D. 
large, in about 15 rows; teeth without grinding surface; D. inserted 
behind V.; mouth oblique, the lower jaw scarcely shorter; elon- 
gate, silvery species, the males usually with snout and base of dorsal 
rosy. (Notropis.1) 
t. Fins moderate, the ventrals extending beyond middle of dorsal. 
126. N. photogenis (Cope). Slender, compressed; mouth ob- 
lique, the jaws subequal; maxillary not quite to orbit; lateral line 
decurved ; eye large, 3} in head, as long as snout. Greenish, sides 
silvery. Head 4}; depth5}. A.10. Scales 6-40-3. L.3. Penn. 
to W. Va. and S. (das, light; yévus, cheek.) 
127. N. telescopus (Cope). Similar to preceding, the D. farther 
forward, not much behind V., midway between snout and C.; eye 
very large, 2? in head; mouth oblique, the jaws subequal; scales 
above dark-edged. Head 41; depth 5. A. 10. Scales 5-38-3. 
L. 34. Tenn. R. (rn\eckdros, far-seeing.) 
128. N. dilectus (Girard). Body moderately elongate, the back 
scarcely elevated, the tail slender; head longer than in related spe- 
cies, rather pointed ; mouth rather large, oblique, the jaws subequal ; 
eye moderate, 4 in head. Olivaceous, sides silvery ; vertebral line 
faint. Head 44; depth 43%. A. 10, L. 23%. Ohio to Neb. and 
Ark. Common. Much smaller than UN. atherinoides, with longer 
head. (Alburnellus rubrifrons and percobromus Cope.)  (Lat., 
delightful.) 
129. N. atherinoides (Rafinesque). Body comparatively elon- 
gate, compressed, the back not elevated ; head short, blunt; mouth 
moderate, very oblique, maxillary reaching front of eye; eye large, 
1 The species of this group are extremely closely related, and in some cases 
scarcely distinguishable, 
