220 . FISHES. 



checked; colors fade in alcohol; body short and stout; 

 head large; D. X 12; A. II, 7; lat. 1. 45; length 2 to 3 

 inches. Mississippi Valley, abundant; the most gaily 

 colored of all the Darters. 



2. P. specfabi/is, Ag. STRIPED BLUE DARTER. Like 

 the preceding and equally brilliant, but larger and more 

 compressed, and more elongate ; back with distinct black- 

 ish stripes along the rows of scales, pattern of coloration 

 similar, but the colors having a clear or bleached appear- 

 ance; with the other, but less abundant; often found in 

 muddy water where P. cceruleus never ventures; still it 

 is perhaps a variety. 



3. P. zonal is, Cope. ZONED DARTER. Olivaceous, 

 golden below; six dark brown quadrate spots along the 

 back, connected by alternating spots with a brown lateral 

 band from which eight narrow bands encircle the belly; 

 lower fins yellow with brown spots; spinous dorsal with 

 a crimson band; a series of crimson spots on base of 

 soft dorsal; black spot on opercle, occiput and base of 

 pectorals; black bars downward from eye and forward; 

 D. XI 12; A. II, 7; lat. 1. 52. Indiana to Tenn. 



5. BOLEICHTHYS, Girard. RED- SIDED DARTERS. 

 > Hololepis, Agassiz. 



1. B. fusiformis, (Grd.) Jordan. FUSIFORM DARTER. 

 Lateral line on 12 scales, reaching middle of first dorsal; 

 head 3J- in length; yellowish brown; spotted; D. VIII 

 9; A. II, 7; lat. 1. 52. Charles R., Mass. 



2. B. erochrous, (Cope) Jordan. RED- SIDED DARTER. 

 Lateral line extending to middle of first dorsal on 12 to 

 16 scales; head 4 in length; sides with dusky band, 

 interrupted by red dots; D. IX 10; A. II, 7; lat. 1. 44. 

 New Jersey. 



