_Ictalurus natalis_ (LeSueur). Yellow bullhead. KU 9, 14. _Pylodictis olivaris_ (Rafinesque). KU 8, 10; DM 18. The flathead catfish comprises a small but consistent part of the sport fishery of the Wakarusa, especially in the mainstream. _Noturus flavus_ Rafinesque. Stonecat. KU 10, 11, 12. _Noturus exilis_ (Nelson). DM 11. The slender madtom is recorded only from riffles in Washington Creek below Lone Star Lake. These riffles, because of the influence of the reservoir, are probably the most permanent in the drainage at present. The slender madtom may become more widespread if other reservoirs are built that stabilize stream flow in the basin. _Perca flavescens_ (Mitchill). The yellow perch is present in Lone Star Lake, and probably will become established in future reservoirs that are constructed. _Percina caprodes_ (Rafinesque). Log perch. KU 11, 14, 15; DM 11, 12, 16, 37, 41. _Etheostoma nigrum_ Rafinesque. KU 8, 14; UMMZ 1, 3, 4, 5; DM 16, 17. The johnny darter, like the common shiner, has been taken recently only in Rock Creek, where darters flourish. Often, ten to fifteen johnny darters were taken with one sweep of a 6- or 12-foot seine in shallow pools having mud bottoms. Watershed improvement may benefit this species. _Etheostoma spectabile pulchellum_ (Girard). KU 7, 10, 12, 14; UMMZ 4, 5; DM 10, 11, 12, 13, 14, 16, 17, 21, 22, 23, 24, 26. The orangethroat darter was most abundant in Deer Creek, Rock Creek and Washington Creek. _Micropterus salmoides salmoides_ (Lacepede). DM 16, 17, 21, 30, 32, 34, 37. The largemouth bass occurs throughout the drainage at present, and should become established without supplemental stocking in future reservoirs. The absence of this species in early collections suggests that widespread stocking of bass in various impoundments in the area in recent years has increased populations in the streams. An anomalous individual, lacking a right pelvic fin, was found in Lone Star Lake. _Chaenobryttus gulosus_ (Cuvier). The warmouth is present in Lone Star Lake. This species typically inhabits lakes and probably will establish itself in other reservoirs. _Lepomis cyanellus_ Rafinesque. Green sunfish. KU 6, 8, 9, 10, 11, 13, 14, 15; UMMZ 2, 4, 5; DM all stations _except_ 11, 12, 13, 14, 27, 30, 31, 39, 40. _Lepomis macrochirus_ Rafinesque. KU 6; DM 10, 16, 17, 24, 31, 33, 37, 41, 42. Both bluegill and green sunfish are common throughout the drainage and will contribute to the sport fishery of any reservoir constructed. The absence of the bluegill in early collections suggests that its population has increased recently owing to introductions in many impoundments.