128 TELEOSTEI: ACAXTIIOPTERI. — XX. 



Vert. 40. L. 4. Ind to Ark. and Texas. S. TV. occurs var. scr- 

 rula J. & G.. with preopercle more sharply serrate; markings more 

 definite; lat. 1. 68 to 71 ; breast naked. Resembles E. aspro. 

 (aicifpos, shaded.) 



ss. Palatine teeth obsolete ; dorsal spines 10 to 12 ; <f with the lower 

 tins tubereulate in spring. (Ericosma 1 Jordan.) 



343. E. evides (Jordan Sc 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 g 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 

 4£;depth5j. D. XI-11. A. II, 8. Scales 9-G5-9. Vert. 40. 

 L. 3. Ind. to Iowa and Ark ; one of the most brilliant of the 

 darters. (euetSijs, comely.) 



rr. Ventral line covered with ordinary scales, which are never shed in 

 life. 

 V. Lateral line complete 2 (with rare exceptions; see E. nianguce). 

 to. Anal tin large, 2 little if any smaller than the soft dorsal. 

 x. Gill membranes nearly - separate from each other. (Hadropte- 

 rus 3 Agassiz.) 

 y. Scales very small, lat. 1. about 85. 



344. E. aurantiacum (Cope). Elongate ; snout longer than 

 eye ; lower jaw included ; cheeks and opereles 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 41; depth 6. D. XV -15. A. II, 11. L. 4f Upper 

 Tenn. II. (Lat., orange.) 



yy. Scales moderate, lat. 1. 55 to 75. 



34 J. E. cymatotaenia 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, 

 opereles. 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 ("me 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 rip, spring-time ; icovixeto, to adorn. 



1 These characters are none of them of high importance and are subject to some 

 variations. 



3 dSpds, strong ; nrepov, fin. 



