LAMPREYS AND FISHES OF INDIANA. 217 



Hybopsis DI8SIMILI8 (Kirtland). 



Geratichthys dissimilis, Jordan and Gilbert, 1882, 8, 215. 



Form elongated and compressed. Depth in length four and one-half 

 to five and one-half. Head long, in length of body three and three- 

 fourths to four and one-half. Upper surface of head flat. Profile straight 

 to between the nostrils, when it begins to descend rapidly to the upper 

 lip. Snout very long, nearly half as long as the head. Upper jaw pro- 

 jecting beyond the lower, making the mouth inferior. The latter small, 

 the maxillary reaching only to the nostrils. A distinct barbel at the ex- 

 tremity of the maxillary. Eye very large to moderate, two and three- 

 fourths to three and one-half in head. Teeth 4-4. Dorsal, eight; anal, 

 seven ; the dorsal beginning distinctly in front of the veutrals. Scales, 

 6-44 to 47-6 ; twenty in front of dorsal. Dusky olive above, often with 

 a narrow dorsal line. Sides silvery, with a leaden band from the eye to 

 the caudal, this sometimes more or less broken up into dark blotches. 



On account of its long snout and inferior mouth, this species resembles 

 the young of some of the suckers. May reach a length of five inches. 



Known to occur from Northern Ohio west to Iowa and south to Ken- 

 tucky. White River at Indianapolis (1, '77, 376) ; Carroll County (23, 

 '88, 48) ; Vincennes, New Harmony, Spencer (4, '84, 165, 167); Gos- 

 port (U, '93, 90). 



Not much is known concerning the distinctive habits of this species. 

 It appears to prefer the larger and clearer streams. 



Hybopsis amblops (Rafinesque). 

 Silver Chub; Big-eyed Chub. 



Geratichthys amblops, Jordan and Gilbert, 1882, 8, 214. 



Rather elongated and slender and somewhat compressed. Depth in 

 length five. Head large ; in length four ; rather broad and flat. Snout 

 blunt, the profile descending suddenly in front of the nostrils ; its length 

 three and one-half in head. Mouth inferior, horizontal, moderate in size, 

 the maxillary extending to front of eye ; a distinct barbel at tip of max- 

 illary. Eye large ; three in head. Teeth, 1-4-4-1 ; one of the inner 

 sometimes missing. Scales, 5-40-4, sixteen in front of the dorsal. Dor- 

 sal rays, eight ; anal, eight. Color above olive ; the sides silvery, with a 

 dark leaden band from the snout to caudal ; this sometimes indistinct. 



Ohio to Alabama. Indiana localities: Falls of the Ohio (9, 9,, 32) ; 

 New Harmony (Hay) ; Lawrence County {23, '84, 203) ; Monroe County 

 (i, '85, 410) ; White River at Indianapolis (1, '77, 376) ; Carroll County 

 (23, '88, 48) ; Eel River system (4, '94, 37) ; Wabash, Owen, Madison, 

 Decatur and Laporte counties (24, '93, 91). 



