128 TELEOSTEI: ACANTHOPTERI. — XX. 
Vert. 40. L.4. Ind to Ark. and Texas. 8S. W. occurs var. ser- 
rula J. & G., with preopercle more sharply serrate ; markings more 
definite; lat. 1. 68 to 71; breast naked. Resembles E. aspro. 
(oxtepés, shaded.) 
ss. Palatine teeth obsolete ; dorsal spines 10 to 12; g with the lower 
fins tuberculate in spring. (Ericosma1 Jordan.) 
343. E. evides (Jordan & Copeland). Body rather stout, com- 
pressed; head heavy, rather blunt forward; eye large; mouth 
smallish, the maxillary reaching eye; lower jaw included; cheeks, 
nape and breast naked; ventral scales moderate; fins large. Dark 
olive, tessellated above; back with 7 broad transverse bars which 
extend below lateral line; these bars are black in 9, with yellowish 
interspaces; in @ deep blue-green, the interspaces yellow with 
copper-red blotches; throat, cheeks, upper fins, and two spots at 
base C., largely orange; A. and V. chiefly blue-black; fins not 
barred; a black spot on last D. spines; 9 with paler colors. Head 
44; depth 54. D. XI-11. A. II, 8. Scales 9-65-9. Vert. 40. 
L. 8. Ind. to Iowa and Ark; one of the most brilliant of the 
darters. (evdedjs, comely.) 
rr. Ventral line covered with ordinary scales, which are never shed in 
life. 
v. Lateral line complete 2 (with rare exceptions; see E. niangue). 
w. Anal fin large,? little if any smaller than the soft dorsal. 
x. Gill membranes nearly 2 separate from each other. (Hadropte- 
rus 3 Agassiz.) 
y. Scaies very small, lat. 1. about 85. 
844. EB. aurantiacum (Cope). Elongate; snout longer than 
eye ; lower jaw included ; cheeks and opercles scaly ; throat smooth. 
Golden brown, a series of small round brown spots traversed by a 
black lateral band which extends around snout; yellow below; fins 
plain. Head 44; depth 6. D. XV-15. A.II, 11. L. 44. Upper 
Tenn. R. (Lat., orange.) 
yy. Scales moderate, lat. 1. 55 to 75. 
345. E. cymatotzenia Gilbert & Meek. Body robust; head 
short, the snout short and slender; mouth small, oblique, included; 
maxillary nearly to front of eye; eye large, 4 in head; cheeks, 
opercles, nape and breast with large scales; preopercle entire; gill 
membranes narrowly joined, the degree of union variable, usually 
very slight; 1st A. spine long and strong; P. short. Greenish, 
with fine dark points; two pale streaks along sides, below the lower 
a broad dusky wavy band; a small black spot at base C.; fins trans- 
1 Hp, spring-time ; xoouéw, to adorn. 
? These characters are none of them of high importance and are subject to some 
variations, 
3 adpés, strong; mrepév, fin. 
