FISHES 127 



C. whipplii (Girard). Body rather deep, compressed; length 60 

 mm.; head 3.5; depth 4.5 to 5; color grayish, mottled with darker and 

 about 12 indistinct dusky bars; sides with small scarlet spots and 2 

 orange spots at the base of the tail fm; a black shoulder spot; rays of 

 dorsal fins XI- 11 or 12; anal II, 7 or 8; scales 8-60 to 70; lateral line 

 incomplete; opercles with a few large scales: lower Arkansas basin; 

 common. 



C. squamiceps (Jordan). Body robust; length 75 mm.; head 3 to 4; 

 depth 4.25 to 5; color dusky olive, with about 10 diffuse blackish cross 

 bands; a pinkish streak along the lateral line; no red or blue; cheeks, 

 opercles, nape and breast usually scaly; rays of dorsal fms VIII to 

 XI-9 to 12; anal II, 7 or 8; scales 6-48 to 60-12: southern Indiana to 

 Georgia and western Florida; common southward. 



24. Catonotus Agassiz. Similar to Claricola, but with a projecting 

 lower jaw: i species. 



N . flahellaris (Raf.). Fan-tailed darter. Body slender; head long 

 and pointed; length 60 mm.; head 3.5 to 4; depth 4.5 to 5.5; color rather 

 dark, body covered with fine specks which form dark cross blotches in 

 the male; a conspicuous shoulder spot; no red or blue; rays of dorsal 

 fins VIII- 1 2 to 14; anal II, 7 to 9; scales 7-50-7; lower jaw strongly pro- 

 jecting; head naked; tail fin large: New England to northern Alabama; 

 westward to Iowa; abundant in swift waters; variable. 



Subspecies of C. flahellaris 



C. f. lineolatus (Agassiz). Longitudinal lines of dark dots present: 

 northern Indiana and Missouri to Minnesota. 



C. f. cumherlandicus (Jordan & Swain). Coloration plain, except 

 for the black shoulder spot: Cumberland Mountains. 



25. Psychromaster Jordan & Evermann. Body robust; a single 

 anal spine present; the top of the head scaly; lateral line curved and 

 incomplete: i species. 



P. tuscumhia (Gilbert & Swain). Body heavy and robust, with an 

 elevated back; length 50 mm.; head 3.5; depth 4; color grayish or 

 greenish, mottled or speckled with black; 6 broad dorsal bars and 8 or 10 

 black blotches along the lateral line; fins barred; cheeks and opercles 

 scaly; rays of dorsal fins IX or X-i i to 13 ; anal I, 8; scales 6-48 to 50-10 : 

 northern Alabama; abundant. 



26. Hololepis Agassiz. Lateral line incomplete, being strongly 

 curved upward anteriorly; gill membranes not joined; ventral fins close 

 together at the base: 2 species. 



