130 TELEOSTEI : ACANTHOPTERI. — XX. 
349. E. zonale (Cope). Body slender; head small and short, 
the snout obtusely decurved; cheeks and opercles scaly; breast 
scaly, or naked (var. arcansanum Jordan & Gilbert) ; teeth feeble ; 
dorsals separate. Olivaceous; 6 brown quadrate spots on back, 
connected by alternating spots with a broad, brown lateral band, 
from which 8 narrower dark bluish bands nearly or quite encircle 
the belly; P., A. and C. golden, speckled with brown; middle half 
of 1st D. crimson; base of 2d D. with round red spots; a black 
spot on opercle and one at base P.; 9 duller, with V. barred. 
Head 41; depth 5. D. XI-12. A. UI, 7. Scales 6-43 to 50-12. 
Vert. 39. L. 24. W. Penn. to Kans. and Miss., in clear streams; 
variable. (Lat., belted.) 
aa. Gill membranes scarcely united. (Nothonotus1 Agassiz.) 
b. Head short, the muzzle abruptly decurved; scales 7-53-8; 2d D., A. and 
C. black edged. 
350. E. camurum (Cope). BLUE-BREASTED DARTER. Body 
stout; mouth somewhat inferior; C. truncate. ¢ blackish olive, breast 
and throat deep rich blue; sides profusely sprinkled with crimson 
dots; faint dark lines along rows of scales; 1st D. with a black spot 
in front, above and behind which is a crimson one; 2d D., A., and C. 
crimson, bordered with yellow and then by blue-black; P. and V. 
crimson-edged; Q greenish, faintly barred. Head 4; depth 44. 
D. XI-13. A. II, 8. Scales, 7-53-8. L. 2}. Ind. to Tenn., in 
clear streams, perhaps the most beautifully colored of all our fresh- 
water fishes. (Lat., blunt-headed.) 
bb. Head rather long and pointed, the snout not decurved. 
c. Dorsal spines 10 or 12. 
d. Scales 9-58-10; vertical fins without black border. 
351. E. maculatum Kirtland. Body moderately elongate, with 
very deep tail; eye large, maxillary to front of eye; fins short; 
1st A. spine large. Olive black, with a wavy leather-colored dorsal 
band; throat blue; back and sides with crimson spots; 1st D. with 
a black spot at base in front; 2d D. blood-red; C. with two con- 
fluent crimson spots at base; P. and V. without red border; 9? 
dull, the fins speckled and without red. Head 4; depth 5}. D. 
XII-12. A.II,9. Scales 9-58-10. Vert.39. L.24. W. Penn. 
to E. Tenn., scarce. (Pec. sanguifluus Cope.) 
dd. Scales 6-45-7: A. and C. narrowly black-edged. 
352. E. rufolineatum (Cope). Stout, the back elevated; snout 
short, as long as the small eye; tail deep. Olive, with numerous 
narrow longitudinal streaks including irregular quadrate spots of 
brick-red ; breast blue; belly orange; head with 2 brown bands, and 
5 red spots on each side; fins all -broadly bordered with crimson ; 
two orange spots at base C.; A. scarlet-yellow at base, edge black; 
1 yd680s, prominent ; v@tos, back 
