ETHEOSTOMATID^. — LXXXIX. 227 



inches. Mississippi Valley, abundant; the most gaily 

 colored of all the Darters. 



2. P. spectabiHs, Ag. Striped Blue Dakter. 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. jessicB, Jordan and Brayton. 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. 



[CatonotKs, Agassi z.) 

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



]. E. f/abe//ar/s, lisii. Fan -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 verj/ distinct ones; 

 head narrow; mouth oblique; body rather slender; fins 

 strongly barred; D. VIII — 12; A. II, 8; length 24- inches. 

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

 ant. (^. linsleyi, H. R. Storer. Oligocephalus himier- 

 alis and Catonotus 'fasciatus^ Girard.) 



' 2. E. lineolata, (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 wdth dark cross 



