The river shiner was taken only in the Arkansas River and in small numbers. In all instances _N. blennius_ was found over sandy bottom in flowing water. Females were gravid at station A-1 on June 14. To my knowledge there are no published records of this shiner from the Arkansas River Basin in Kansas. In Oklahoma this species prefers the large, sandy streams such as the Arkansas River. Cross and Moore (1952:403) found it in the Poteau River only near the mouth. #Notropis boops# Gilbert: Stations G-5, G-7, C-3, C-5, C-8, C-9, C-10, C-11, C-12, C-15, C-16, E-4, E-5, M-1, M-2. Widespread occurrence of the bigeye shiner in this area seems surprising. Except for this area it is known in Kansas only from the Spring River drainage in the southeastern corner of the state (Cross, 1954b:474). _N. boops_ chose habitats that seemed most nearly like Ozarkian terrain. The largest relative number of bigeye shiners was taken at C-11 in a clear stream described in the discussion of _Notropis rubellus_. At this station _N. boops_ comprised 14.11 per cent, and _N. boops_ and _N. rubellus_ together comprised 24.78 per cent of all fish taken. At station G-7 on Grouse Creek the percentage of _N. boops_ was 7.15. Here, as at station C-11, water was clear. At both stations _Myriophyllum heterophyllum_ was abundant and at G-7 _Nelumbo lutea_ was also common. At G-7 _N. boops_ seemed most abundant in the deeper water, but at C-11 most shiners were found in the shallower part of a large pool. Two other collections in which _N. boops_ were common were from Spring Creek. It is a small, clear Flint Hills brook running swiftly over clean gravel and rubble. It had, however, been intermittent or completely dry in its upper portion throughout the winter of 1955-'56 and until June 22, 1956. In collections at C-15 on June 28, _N. boops_ formed 6.5 per cent of the fish taken. Farther upstream, at C-16 on July 9, in an area one mile from the nearest pool of water that existed prior to the rains of June 22, _N. boops_ made up 7.2 per cent of the fish taken. In streams heading in the hilly area of western Elk County, the relative abundance of _Notropis boops_ decreased progressively downstream. On upper Elk River percentages were lower than on upper Grouse Creek and upper Big Caney River.