Lepomis humilis (Girard). Orangespotted sunfish. KU 6, 9, 11, 14, 15; UMMZ 1, 2, 4, 5; DM 4, 6, 16, 17, 21, 23, 24, 25, 26, 32, 33, 34, 37, 38, 39, 40, 41, 42.
Lepomis megalotis breviceps (Rafinesque). Longear sunfish. KU 8 (one individual taken in Rock Creek, 1951).
Pomoxis annularis (Rafinesque). KU 9, 15; UMMZ 2. White crappie occur in Lone Star Lake and in farm ponds in the basin.
Pomoxis nigromaculatus (LeSueur). Specimens of black crappie were obtained from Lone Star Lake and in farm ponds in the basin.
Aplodinotus grunniens Rafinesque. Drum. KU 12.
Discussion
Our data show that the present fish-fauna of the Wakarusa River has three major components:
(1) A group of species that are mainly restricted to the lower mainstream; all of them are common in the Kansas River (Lepisosteus osseus, Carpiodes carpio carpio, Ictiobus cyprinella, Moxostoma aureolum, Cyprinus carpio, Hybopsis storeriana, Hybopsis aestivalis, Notropis percobromus, Hybognathus nuchalis and Pylodictis olivaris).
(2) A group of species that are ubiquitous; they comprised the entire fauna in some tributaries, despite the existence of habitats that seemed suitable for other species (Notropis lutrensis, Pimephales promelas, Ictalurus melas, and Lepomis cyanellus).
(3) A group of species having distributions centered in Rock Creek, Washington Creek, Deer Creek, and some nearby tributaries (Catostomus commersonnii, Semotilus atromaculatus, Hybopsis biguttata, Notropis cornutus, Notropis topeka, Notropis umbratilis, Phenacobius mirabilis, Pimephales notatus, Campostoma anomalum, Noturus exilis, Percina caprodes, Etheostoma nigrum and Etheostoma spectabile).