96 VERTEBRATE ANIMALS OF THE UNITED STATES 



regular lines; rays of dorsal fin 14; anal 15; scales 50: Tennessee and 

 Cumberland Rivers and in the Ozark region, in mountain streams; 

 abundant. 



A', stellijer Jordan. Length 100 mm.; head 3.75; depth 5; color 

 blue above, silvery below, with large orange spots irregularily placed; 

 rays of dorsal and anal fins 13; scales 53: Alabama River basin. 



4. Zygonectes Agassiz. Dorsal fin small, with 7 to 11 rays, 

 inserted behind the anterior border of the anal fin; scales large, 29 to 40 

 in the lateral line; size small: about 10 species. 



Z. cingulatiis (Cuvier and Valenciennes). Length 75 mm.; head 

 3.25; depth 3.75; color dark olivaceous, with a dark orange spot on 

 each scale posteriorly; faint narrow orange bars along the lower and 

 hinder part of the body; rays of dorsal fin 7 or 8; anal 8 or 9; scales 

 32-11 or 12: streams and swamps of eastern Florida. 



Z. sciadicus (Cope). Length 65 mm.; head 3.5; depth 3.2; color 

 uniform olivaceous; rays of dorsal fin 10; anal 12; scales 39-13: eastern 

 Nebraska and South Dakota to Colorado; common in grassy 

 streams. 



Z. chrysotus (Holbrook). Length 50 mm.; head 3.5; depth 3.8; 

 color light olive brown; sides with about 14 indefinite half-bars; rays of 

 dorsal fin 9; anal 11 ; scales 32 or 33-12: coastwise swamps from South 

 Carolina to Florida. 



Z. cingidatus (Cuvier & Valenciennes). Head 3.5; depth 3.75; 

 color olivaceous, with fine dots; scales edged with dusky, forming a few 

 faint longitudinal stripes; about 15 dark vertical bars; fins red; rays of 

 dorsal fin 7; anal 8; scales 34-10: South Carolina to Florida, in coast- 

 wise swamps. 



Z. nottii Agassiz. Length 35 mm.; head 3.6; depth 4.5; color 

 silvery, with 6 narrow jet-black lines from head to tail, these being 

 crossed by about 12 cross bars; cheeks orange; rays of dorsal fin 7 or 8; 

 anal 9 or 10; scales 36-10: Florida to South Carolina. 



Z. guUatus Ag. Head 3.75; depth 5; color orange brown; each 

 scale with a black edge, these forming longitudinal stripes, but not con- 

 fluent; cheeks orange; rays of dorsal fin 6 or 7; anal 8 or 9; scales 36-12 : 

 Florida to Texas. 



Z. dispar Ag. (Fig. 46). Length 65 mm.; head 3.75; depth 3.5; 

 color bluish or greenish in life, with a blue patch under the eye, female 

 with ID distinct longitudinal brownish lines; males with about 7 lon- 

 gitudinal rows of small brown spots and 9 dark cross bars; rays of 

 dorsal fin 7; anal 9; scales 35-10: Michigan to Arkansas; southward to 

 Mississippi; common in sluggish streams. 



