290 PISHES. 



6. HUDSONIUS* Girard. Minnows. 



* Mouth inferior, horizontal, small (rarely oblique, and the teeth 

 4 — 4) ; dorsal over or in front of ventrals. 

 f Teeth two-rowed ; body elongate, silvery, the head contained 

 5i to 6 times in total length, including caudal fln; dorsal 

 fln beginning in front of ventrals ; grinding surface of teeth 

 often more or less distorted or even obliterated. (Hudtonim, 

 Grd.) 



1. H. storerianus, (Kirt.) Grd. Stokee's Minnow. 

 Silvery, scales with black dots, forming a dark lateral 

 stripe; snout blunt, about as long as eye; depth 5 in 

 length; D. I, 8; A. I, 7; lat. 1. 41. Great Lake region, 

 etc. 



3. H. fluviatilis, Grd. Spawn-Eatbe. Silvery, often 

 with dark shades; snout much shorter than eye, bluntly 

 rounded; depth 4 in length; D. I, 8; A. I, 8; lat. 1. 38; 

 teeth usually 3, 4 — 4, 2. Lakes and rivers; abundant 

 eastward. {Suds, flwoiatilis, Grd.) 



3. H. amarus, (Grd.) " Smelt." Very similar, 

 but paler and with the snout much less decurved, less 

 blunt than the two preceding species; D. I, 7; A. I, 8; 

 lat. 1. 38; teeth usually 1, 4 — i, 1. Penn. to Ga. (-S". 

 pJiMenna, Cope.) 



tt Teeth 4^-4 ; body shorter, small ; head larger, 4} to 5 in length, 

 with caudal fln; dorsal fln beginning over ventrals; small 

 species, usually without bright colors. 

 % Mouth inferior or horizontal, small. 

 a. Lateral line 43 to 45 ; a spot on dorsal fln 'n front. 



4. H. tuditanus. Cope. Form, coloration and dentition 

 of Syborhynchus notaPus, but with the alimentary canal 



• The name Bvhopais, usually applied to this genus, was apparently based 

 on a species of OeratiehthuB, Alburnopttalso sometimes used, on species ot 

 ZaoMui. 



