136 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Oj)ercles on a few specimens nearly scaleless. Spring Eiver, Spring Branch, Myatt, 
and English Creeks 5 common. 
38. Cottus bairdi Girard. 
Spring River, abundant near the dam. Called “ Cod” by the inhabitants of Mam- 
moth Springs. The specimens ot this species vary much in color ; some are nearly 
black, while others are almost brick red ; some are much mottled while others have the 
dark vertical bauds ijrominent. Some specimens taken were more than 6 inches in 
length. 
VIII. — LITTLE RED RIVER. 
The Little Bed River at Judsouia, Ark., reaches a considerable size, and at the 
time of our visit was much swollen by floods. The current is sluggish and the banks 
rather steep and muddy. The temperature was 79 ° Pah. The river was too high to 
admit of seining, and so the collecting was done in a small tributary near Judsonia. 
This stream has a sluggish current and muddy bottom. The Little Red River is a 
southern tributary of the White River. 
1. Brimyzon sucetta Laodp^de. 
Rot common ; 44 scales in the lateral line. 
2. Hybognathus nuchalis (Agassiz). 
Common. 
3. Notropis wliipplei (Girard). 
Scarce. 
4 . Notropis megalops (Ratinesque). 
One specimen. 
5 . Notropis umbratilis (Girard). 
Common. 
6. Notropis atlierinoides caddonis (new variety). 
Length of longest specimen 3 inches. Head 4^ to 4,^ in the length of the body. 
Depth 5J. Scales 36 to 39 in the lateral line. Anal rays 11. Dorsal rays 8 . Eye 3 in 
the head. Snout 3| in the head. Origin of first dorsal ray midway between the 
pupil and base of caudal fin. Eighteen or 19 scales before dorsal fin. Body slender. 
Eye large. Snout short. Color light olivaceous, with a faint plumbeous lateral band, 
overlaid by silvery lateral line decurved. This form differs from the ordinary atheri- 
noides in having a comparatively larger eye and a shorter snout. It was found also in 
the Caddo Eiver. 
7. Semotilus atromaculatus (Mitchill). 
Scarce. 
8. Zygonectes notatus (Ealiuesque). 
Rot common. 
9 . Lucius reticulatus (Le Sueur). 
One specimen. 
10. Labidesthes sicculus (Cope). 
Rot common, 
11. Aphredoderus sayanus (Gilliams). 
One specimen. Fifty scales in the lateral line. 
12. Blassoma zonatum Jordan. ^ 
One small specimen. The species was originally described from Judsouia. 
