27 



of the eastern United States, associated with darteis, blobs 

 and small minnows. In the aquarium it is more hardy than 

 any other minnow and eats voraciously of animal food. 



Hybopsis kentuckiensis {Raf.). 



Hornyhead ; River Chub ; Jerker. 



Ceratichthys biguttatus Kirte. 



Robust ; head large, blunt; a barbel; mouth large, little 

 oblique ; eye small. 18 scales before the dorsal. Bluish 

 olive, with browner shades ; a dark bar behind the opercle ; 

 fins pale orange, unspotted ; young with a black spot on base 

 of caudal. Males with tubercles on the head in spring. D. 8, 

 A. 7. Scales 6-41-4. Length 10 inches. 



Pennsylvania, west and south, according to Jordan's 

 " Manual." I have found two specimens of a fish at two diff- 

 erent points on the Passaic River, which I refer to this species. 

 It appears to be a greedy fish ; one that I caught had swal- 

 lowed the bait and had to be cut open to remove the hook. 

 The flesh appears very soft. 



Semotilus corporalis {Mitch.). 

 Faeefish ; Windeish ; Chub. 



Semotilus rhotheus Cope. 



Somewhat robust, fusiform ; barbels small ; bluish above, 

 silvery below, fins plain. 22 scales before the dorsal. D. 8, 

 A. 8. Scales 8-45-5. Length 18 inches. 



Canada and eastern United States. The largest native carp 

 fish east of the Rocky Mountains. 



Of either this or the next species I have caught a few in a 

 tidal creek at Secaucus, N. J., but I cannot tell now (from 

 insufficient data), which one of them to positively class it with. 

 It is said to be common in the Delaware River. 



Semotilus atromaculatus {Mitch.). 

 Creek Chub ; Horned Dace. 

 Semotilus corporalis AucT. 



More robust than the former. Head large and broad, barbel 

 minute, not evident in the young ; mouth large, lower jaw 

 included ; eye small ; 30 scales before the dorsal. Dusky, 

 somewhat silvery, a dark bar at shoulder, a black spot at front 



