ETHEOSTOMATIDJE. LXXXIX. 227 



inches. Mississippi Valley, abundant; the most gaily 

 colored of all the Darters. 



2. P. spectab/'/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. variatus never ventures. 



3. P. Jessies, Jordan and Bray ton. SOUTHERN BLUE 

 DARTER. Cheeks scaly above not entirely naked as in 

 the two preceding species; lateral line extending to end 

 of second dorsal farther than in either of the preceding 

 species; chestnut colored above, with squarish blotches 

 of a dark, clear blue on the sides; fins mottled with chest- 

 nut or golden; D. XII 12; A. 11,9. Tennessee River. 



15. ETHEOSTOMA, Rafinesque. STRIPED DARTERS. 

 (Catonotus, Agassiz.) 



* Head entirely scaleless ; lateral line short; lower jaw longest. 



1. E. flabellaris, Raf. FAX -TAILED DARTER. Oliva- 

 ceous, dusky above; sides with obscure dusky bars; each 

 scale with a brownish spot, these sometimes forming 

 series of longitudinal lines but never very distinct ones; 

 head narrow; mouth oblique; body rather slender; fins 

 strongly barred; D. VIII 12; A. II, 8; length 2$ inches. 

 Great Lakes and streams from N. Y., S. and W., abund- 

 ant. (E. limleyi, H. R. Storer. Oligocephalus humer- 

 alis and Catonotus fasciatus, Girard.) 



Var. lineolaia, (Ag.) Jor. STRIPED DARTER. Oliva- 

 ceous, each scale with a black spot, hence the body with 

 a series of fine dotted longitudinal lines which are very 

 distinct above; some ($?) further marked with dark cross 



