FISHES GF MISSOURI AND ARKANSAS. 
121 
6. Catostomus nigricans Le Sueur. 
Found in all places exce{)t the Big Piney ; common. 
7 Catostomus teres Mitcliill. 
Big Piuey ; not common. 
8. Moxostoma duquesnei Le Sueur. 
Common in the Osage Fork and the Big Piney ; not common in the Lock Fork; 
scarce in the Little Piney and Gasconade at Newbarg and Arlington. 
9. Campostoma anomahun (Rafiiiesque). 
Abundant in Jones’ Creek and Big Piney ; scarce in the Osage and Lock Forks of 
the Gasconade. 
10. Chrosomus erythrogaster Rafiuesque. 
Osage Fork, Big Piney, and Jones’ Creek, common. 
11. Hybognathus nubila (Forbes). 
Scarce in Little Piuey; abundant in Jones’ Creek, the Lock and Osage Porks of 
the Gasconade. A black spot at base of caudal flu. 
12. Pimephales notatus ( Rafiuesque). 
Osage and Lock Forks, abundant ; Big Piuey, common ; Little Piney, scarce. 
13. Notropis cayuga Meek. 
This species is very scarce in southern Missouri. It is usually found in quiet and 
warm waters. Big Piuey, Osage, and Lock Forks of the Gasconade. 
14. Notropis boops Gilbert. 
At the base of the caudal fin is a distinct <-shaped spot, the apex pointing 
towards the head of fish, the first dorsal ray nearer base of caudal than tip of the 
snout. Eye 3 in head, head 4 in length, depth 4^. The specimens of this species 
from the Gasconade and Little Piney differ from those from the Big Dry, at Eolla, 
Mo., in having the <-shaped blotch at base of caudal, in the smaller eye, and the 
more posterior position of the dorsal fin. Abundant in the Little Piney and the Gas- 
conade near the mouth of Little Piney; Jones’ Creek, scarce. 
15. Notropis lutrensis (Baird & Girard). 
Two specimens from the Little Piney. Snout tuberculate ; head, 3f; depth, 3^. 
First dorsal ray midway between snout and base of the caudal fin. Color, steel- 
bluish, 
16. Notropis whipplei (Girard). 
Abundant near the mouth of the Little Piney; scarce in the Osage Fork of the 
Gasconade. 
17. Notropis zonatus (Agassiz). 
Usually a scarlet red band across the middle of the dorsal fin in the males. Some 
specimens from the Big Piney are very slender, the depth being in the length. 
The position of the dorsal fin is farther back in the more slender specimens. The 
clearer and cooler the water in which this minnow is found the brighter are its colors. 
Big Piney, Little Piney, Gasconade, Lock Fork, Osage Fork, and Jones’ Creek ; com- 
mon. 
18. Notropis megalops (Rafiuesque). 
Big Piney, common ; Lock Fork of the Gasconade, common. 
19. Notropis umbratilis cyanocephalus (Copeland). 
Abundant from the Lock and Osage Fork of the Gasconade. The larger speci- 
mens q-re much compressed. Color, dark bluish, dark spot at base of dorsal in front. 
