312 FISHES OF ILLINOIS 



a dark spot on cheek behind eye; suborbital streak faint or wanting; 

 cheeks, opercles, and chin rather densely sprinkled with fine dark dots; 

 black humeral scale very large and usually distinct, its depth nearty 

 equal to diameter of eye; spinous dorsal pale below, with a broad outer 

 margin of dusky ; soft dorsal faintly barred ; caudal with 6 or 7 wavy bars 

 which are continuous for most part on both rays and membranes, as in 

 E. squamiceps and E. flabellare; pectorals faintly barred; other fins plain. 

 Head 3.36 to 3 . 46, rather slender and pointed ; width of head 2 to 2.3; 

 interorbital space about half of eye, 7.1 to 8 . 1 ; eye roundish, somewhat 

 protruding above cranium, 3 .2 to 3 . 7 ; mouth rather large, subterminal, 

 oblique, tip of upper lip above level of lower margin of orbit; maxillary 

 reaching past front of orbit; cleft 2.9 to 3.2 in head; jaws subequal; 

 gill-membranes scarcely connected, distances to angle and to back of orbit 

 equal. Dorsal fin VI or VIII, 11-12 ; twofins scarcely separated ; first dorsal 

 low, 50 to 59 percent, of height of second (first 2 . 7 to 3 . 8 in head, second 

 1.6 to 1.9); caudal subtruncate; anal II, 7; pectorals 1.2 in head; sepa- 

 ration of ventrals less than half their width at base. Scales 6, 42-45, 6 

 or 7 [10]; lateral line always incomplete, the pores developed on 15 to 

 20 scales only; cheeks naked; opercles usually naked, sometimes with a 

 trace of scales; nape and breast naked; belly covered with ordinary 

 scales. 



This rare little fish has been taken in this state in only four col- 

 lections, all from rocky and gravelly creeks in Pope and Hardin 

 counties. It was originally described in 1890 from the tributaries of 

 the Cumberland River in Clinton county, Kentucky, and seems not 

 to have been since reported from any other place. 



ETHEOSTOMA SQUAMICEPS Jordan 



Jordan, 1877, Bull. U. S. Nat. Mus., No. 10, 11. 



J. &G., 514; M. v., 131 ; B., I, 85; J. & E., I, 1096; L., 29. 



Length 2h to 3 inches; body robust, back low, and caudal peduncle 

 stout ; depth 4 . 9 to 6 ; greatest width of body about f its greatest depth ; 

 depth caudal peduncle 1.6 to 2.3 (usually less than 2) in its length. 

 Color dusky olive, finely and densely mottled and specked with dark 

 brown, lower part of sides and belly scarcely lighter than upper parts; 

 no lateral spots or blotches and no evident cross-bars*; a more or less 

 distinct dark humeral scale, a bar before eye, and a very distinct sub- 

 orbital streak: chin and cheeks conspicuously vermiculated with dark 

 brown; second dorsal, caudal, and pectorals finely barred, latter faintly. 

 Head 3 . 7 to 4 in length, nape angled and profile noticeably decurved 

 to end of bluntlv pointed snout; interorbital space almost equal to eye, 

 6 to 7 .2 in head; eye round, 3 . 7 to 4.4; mouth largef, terminal, oblique, 

 the jaws subequal; maxillary reaching past front of pupil; cleft 2 . 8 to 



♦Compare with Jordan and Evermann, Bull. 47, U. S. Nat. Mus., Pt. I., p. 1096. 

 t" Small" (Jordan and Evermann, 1. c). 



