300 FISHES. 



lower lip developed only on the sides of the jaw as a 

 conspicuous lobe; thorax naked; D. I, 8; A. I, 7; lat. 1. 

 44. Missouri to Illinois. (P. teretulus^ var. liosternus^ 

 Nelson.) 



13. GILA, Baird and Girard. LONG-JAWED SHINERS. 



* Scales very small; mouth large, very oblique, the lower jaw 

 projecting and considerably compressed; form elongate ; size 

 small. (Clinostomus, Grd.) 



1. G. e/ongafa, (Kirt.) Jordan. RED-SIDED MINNOW. 

 Dark bluish, mottled by paler scales; sides with a broad 

 black band, the front half of which is bright crimson in 

 the spring; a dark dorsal stripe; mouth very large, the 

 lower jaw narrowed and projecting farther than in any 

 other of our Dace; a little knob at the tip which over- 

 laps the end of the upper jaw; body much elongated, 

 but little compressed; depth 5 in length; head 4; eye 

 moderate, about 3| in head; D. I, 8; A. I, 8; lat. 1. 70 to 

 75; L. 4. Great Lakes, Ohio Valley, etc.; a handsome 

 species. 



2. G. proriger, Cope. LONG-JAWED SHINER. Rather 

 more compressed than the preceding; and paler in color 

 with larger scales; lat. 1. 60 to 65; otherwise very similar, 

 perhaps a variety; D. I, 8; A. I, 7. Ohio Valley. 



3. G. estor, Jordan & Brayton. PIKE SHINER. Body 

 quite deep and compressed; depth 4 in length; head 

 very long and large, 3J in length; mouth very large and 

 oblique, even larger than in 6r. elongata; lateral line 

 strongly decurved; scales moderate, much larger than in 

 the preceding; lat. 1. 50; D. I, 8; A. I, 8; teeth 

 2, 4 5, 2; color bluish olive; sides silvery, bright crim- 

 son in males; no dark lateral band. Cumberland and 

 Tennessee Rivers. 



