_N. rubellus_ was taken by Minna Jewell and Frank Jobes in Silver Creek on June 30, 1925 (UMMZ 67818). The shiner was not found in any stream west of the Big Caney system in my collections.
In Oklahoma, Hall (1952:57) found _N. rubellus_ in upland tributaries on the east side of Grand River and not in the lowland tributaries on the west side. Martin and Campbell (1953:51) characterize _N. rubellus_ as preferring riffle channels in moderate to fast current in the Black River, Missouri. It is the only species so characterized by them which was taken in my collections. Moore and Paden (1950:84) state "_Notropis rubellus_ is one of the most abundant fishes of the Illinois River, being found in all habitats but showing a distinct preference for fast water...."
#Notropis topeka# (Gilbert): Two specimens (formerly Indiana University 4605) of the Topeka shiner labeled "Winfield, Kansas" are now at the University of Michigan Museum of Zoology. Collector and other data are not given. Evermann and Fordice (1886:185) noted that two specimens of _N. topeka_ were taken from Sand Creek near Newton in Harvey County, but do not list it from Cowley County near Winfield. They deposited their fish in the museum of Indiana University.
#Notropis umbratilis# (Girard): Stations G-1, G-3, G-4, G-7, G-8, G-9, G-12, G-14, B-2, B-3, C-1, C-2, C-3, C-4, C-5, C-6, C-7, C-8, C-9, C-10, C-11, C-12, C-13, C-14, C-15, C-16, E-1, E-2, E-4, E-5, M-1, M-2 (J&J, C-131, C-132).
The redfin shiner flourished in all the streams surveyed except the Arkansas and Walnut Rivers. _N. umbratilis_ has been found in upland tributaries of the Walnut River, some of which originate in terrain similar to that in which Elk River, Big Caney River, and Grouse Creek originate. (Collection C-26-51 by Cross on Durechon Creek, October 7, 1951.) This suggests downstream reduction in relative numbers of this species, a tendency which also seemed to exist on both Big Caney River and Grouse Creek. _N. umbratilis_ was the most abundant species in Big Caney River except at the lowermost stations where it was surpassed in relative abundance by _N. lutrensis_ and _Gambusia affinis_.
_N. umbratilis_ was a pool-dweller, becoming more concentrated in the deeper pools as summer advanced. In May and early June, large concentrations of adult _N. umbratilis_ were common in the shallow ends of pools together with _N. rubellus_, _N. boops_, _Pimephales notatus_, and _Pimephales tenellus_. By July and August, only young of the year were taken in shallow water, and adults were scarcely in evidence.