228 FISHES. 



bars; D. VIIT — 12; A. II, 8. Great Lakes and Missis- 

 sippi Valley, rather northward; body deeper and colors 

 much brighter than in the preceding, of which it is 

 probably a variety. 

 ** Head scaly; lateral line nearly complete; jaws equal. 



2. E. squamiceps, Jordan. Body elongate; head large, 

 3^ in length; jaws shorter than in E.flahellaris^ cheeks, 

 opercles, neck and throat densely scaly; lateral line 

 wanting only on about ten scales; colors dark; fins barred; 

 D. IX — 12; A. II, 7. Ohio Valley. A curious species, 

 in some respects intermediate between Etheostoma and 

 NothoROtus. 



16. 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 3^ 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. 41. 

 New Jersey. 



3. B. eos, Jordan & Copeland. Sunrise Darter. 

 Body slender, elongate, with long caudal peduncle; 

 mouth small; lateral line to end of first dorsal on 22 to 

 26 scales; head 4 in length; dark olive wath about ten 

 dark dorsal blotches, and as many dark blue or blackish 

 bars along the sides; the belly and interspaces between 

 these bars are of a clear vermillion; first dorsal bright 

 blue, with a broad median band of crimson; other fins 

 mostly barred; D. IX-11; A. II, 7; lat. 1. 58. North- 



