FISHES OF MISSOURI AND ARKANSAS. 
133 
lliuty conglomerate. The stream, at the time of our visit, was considerably swollen 
by recent rains, and was somewhat muddy. The temperature was 75° Fah. 
English Creelc was similar in its i^hysical characteristics to Myatt Creek. It is 
smaller, the current more sluggish, the bottom quite muddy. It contains large patches 
of Sagittaria and Myriopliyllum. This stream was also swollen by the rains. Tem- 
perature 71° Fah. 
1. Ameiurus melas (Rafiuesque). 
Myatt Creek, common. 
2. Ameiurus iiebulosus Le Sueur. 
Bayou of Spring River, common; English Creek, scarce. 
3. Catostomus teres (Mitchill). 
Spring River, common. 
4. Catostomus nigricans Le Sueur. 
Spring River, Myatt and English Creeks ; common. 
5. Brimyzon sucetta (Lac^pede). 
Spring River, Myatt, scarce. 
6. Moxostoma duquesnei (Le Sueur). 
Spring River, Myatt, English Creek, common. 
7. Campostoma aiiomalum (Rafiuesque). 
Spring River and Myatt Creek, common. 
8. Chrosomus erythrogaster Rafiuesque. 
Spring Branch, common. 
9. Hybognathus nubila (Forbes). 
Spring diver, Myatt and English Creeks, common. 
10. Pimephales notatus (Rafiuesque). 
Warm Fork, not common ; Myatt Creek, scarce. 
11. Notropis lutrensis Baird and Girard. 
Warm Fork, scarce. 
12. Notropis galacturus (Cope). 
Spring River, Myatt and English Creeks, scarce. 
13. Notropis zonatus (Agassiz). 
Spring River, Myatt and English Creeks, common. 
14. Notropis megalops (Rafiuesque). 
Spring River, Myatt and English Creeks, abundant. 
15. Notropis umbratilis (Girard). 
Spring River, scarce. 
16. Notropis telescopus arcansanus var. uov. 
Longest specimen inches in length. Head 4i to 44 in the length of the body. 
Depth 5 to 54 . Scales 5 — 35 to 38 — 3. Fourteen to 15 scales in a series between nape 
and dorsal flu. Anal rays 10 or 11. Eye very large, 2| in the length of the head. 
Snout pointed, its length 3| in the length of the head. First ray of dorsal fln midway 
between base of caudal and nostril, ventrals slightly in advance of the dorsal. Body 
long and slender. Sides with an indistinct plumbeous band overlaid by silvery. 
Color dusky olivaceous above, silvery below. I have compared specimens from Mam- 
moth Spring region with Notropis telescopus from Big Creek, Tennessee, Watauga 
River, Tennessee, and from Middle Fork of the Holstein Rivet', Glade Spring, Virginia. 
