I20 



VERTEBRATE ANIMALS OF THE UNITED STATES 



7. Hypohomus Cope. Like Swainia, but with gill membranes 

 separate and no shoulder spot: 4 species. 



H. aurantiaciis (Cope). Length 150 mm.; head 4.25; depth 6; color 

 olive, with a row of confluent blotches along the side joined by a dark 

 lateral band; chin and throat deep orange; rays of dorsal fins XV-15; 

 anal II, 11; scales 14-85-15: upper Tennessee basin. 



H. cymatotcEnia (Gilbert & Meek). Length 125 mm.; head 4 to 4.25; 

 depth 5; body robust; color greenish, with fine dots and 2 pale streaks 

 along the sides; a black spot at the base of the tail fin; rays of dorsal 

 fins XII to XIV-12 to 14; anal II, 10; scales 7-64 to 70-12: southern 

 Missouri. 



8. Cottogaster Putnam. Body slender; snout blunt; scales 

 ctenoid; midventral space naked anteriorly or with enlarged caducous 

 scales; lateral line continuous; premaxillaries protractile: 2 species. 



Fig. 57. — Imostoma shumardi {from Fishes of Illinois). 



C. uranidea (Jordan & Gilbert). Length 50 mm.; head :2^.^; depth 

 5.6; color greenish olive; back with 4 conspicuous broad black cross 

 bands and 1 1 dark blotches below the lateral line ; cheeks mostly naked ; 

 opercle scaly; rays of dorsal fins X or XI-13; anal II, 10 or 11; scales 

 6-48 to 56-10: southern Indiana to Alabama and Arkansas, in lowland 

 streams. 



C. copelandi (Jordan). Length 75 mm.; head 3.75; depth 5.5 to 6.5; 

 color brownish olive, with a series of small black blotches along the 

 lateral line forming an interrupted lateral band; a black spot on the 

 anterior dorsal fin; cheek naked; opercle with a few scales; rays of 

 dorsal fins X to XII-io to 12; anal II, 8 or 9; scales 6-44 to 56-8: Lake 

 Champlain to Lake Huron and southwestward to Tennessee and 

 southern Missouri; abundant in central Indiana; in clear brooks. 



9. Imostoma Jordan. Like Cottogaster, but with scaly cheeks; 

 midventral plates not enlarged: 3 species. 



I. shumardi (Girard) (Fig. 57). Length 75 mm.; head 3.4; depth 5; 

 color dark, vaguely blotched with darker, with a large black spo att 



