FISHES OF MISSOUKI AND ARKANSAS. 
129 
only in small numbers elsewhere, was here found to be by far the most abundant min- 
now. The tem])erature was 74° Fah. 
1. Noturus exilis Nelson. 
One specimen from the James. 
2. Catostomus nigricans Le Suenr. 
James and North Fork of the White, not common. 
3. Brimyzon siicetta (Lac6pfede). 
North Fork of the White, common. 
4. Moxostoma duquesnei (Le Sueur). 
James, common ; North Fork of the White, one specimen. 
5. Campostoma anomalum (Raftuesque). 
James, common ; North Fork of the White and Bryant’s Creek, abundant. 
6. Chrosomus erytlirogaster Eafluesque. 
Bryant’s Creek, abundant. The specimens have yellow on the sides instead of red. 
7. Hybognathus nubila (Forbes). 
James River and North Fork of the White, abundant; Bryant’s, scarce. Females 
gravid. 
8. Piraephales notatus (Raflnesque). 
James River and Nortii Fork of the White, common. 
9. Notropis ozarcaniis, sp. iiov. 
Teii specimens from the North Fork of the White. Longest specimen 2^ inches 
in length. Allied to Notropis spectruncuhis. Body very slender, not much compressed, 
back very slightly arched. Alontli slightly oblique, small, end of maxillary scarcely 
reaching front of orbit. Eye large, its diameter 3 in the length of the head ; preor- 
bital bone large, slightly longer than deep. Head 4^ in the length of the body, depth 
()^. Dorsal rays 7. Anal rays 8. Thirty-six scales in the lateral line. First dorsal 
ray midway between tip of snout and base of caudal fin. Pectoral fins short, their 
tips reaching three-fifths the distance to base of ventrals. Teeth 4 — 4, their tips 
hooked, grinding surface narrow, and with its edges slightly crenate. Color olivaceous, 
the sides punctulated with dark dots, forming a faint lateral band. Lips very thin ; 
intestinal canal not longer than the body. 
This species resembles Notropis spectruncuhis, from which it differs in being more 
slender, in having a smaller and narrower head, a less blunt snout, and a narrower 
iiiterorbital space. 
10. Notropis lutrensis (Baird & Girard). 
James River, scarce. 
11. Notropis galacturus (Cope). 
James River, scarce. 
12. Notropis zonatus (Agassiz). 
James, Bryant’s Creek, and North Fork, common. 
13. Notropis megalops (Ratiuesque). 
Found with the above, common. 
14. Notropis rubrifrons (Cope). 
James River and Bryant’s Creek, common. 
15. Notropis micropteryx (Cope). 
James River, scarce. 
Bull. U. S. F. C. 89 9 
