was nowhere dominant. The
largest populations were at DM 3, 6, and 22.

_Hybognathus nuchalis_ Agassiz. KU 8, 15; UMMZ 3; DM 1, 6. The
silvery minnow was taken only in the downstream portion of the
Wakarusa and its lower tributaries.

_Pimephales promelas_ Rafinesque. KU 6, 7, 8, 9, 10, 11, 13, 14,
15; UMMZ 1, 4, 5; DM all stations _except_ 1, 8, 10, 11, 13, 14,
30. The fathead minnow was ubiquitous, and was dominant at several
stations on the smallest creeks.

_Pimephales notatus_ (Rafinesque). KU 1, 6, 11, 12, 14, 15; UMMZ 1,
4, 5; DM 6, 8, 10, 12, 16, 17, 18, 24, 25, 26, 37, 41. The
bluntnose minnow occurred at several stations on tributaries but
was not common.

_Campostoma anomalum_ (Rafinesque). KU 7, 8, 10, 11, 12, 13, 14;
UMMZ 4, 5; DM 3, 9, 10, 11, 13, 15, 16, 17, 18, 19, 20, 21, 22, 24,
25, 30, 32, 33, 34. The stoneroller was usually abundant at
upstream stations and was found in the mainstream of the Wakarusa
River.

_Ictalurus punctatus_ (Rafinesque). KU 6, 8, 10, 11, 12, 13, 15; DM
1, 2, 18, 24. Channel catfish were taken by us only in the
mainstream; anglers sometimes catch channel catfish in several of
the tributaries.

_Ictalurus melas_ (Rafinesque). Black bullhead. KU 1, 2, 5, 6, 9,
14; UMMZ 2, 5; DM 5, 6, 7, 16, 17, 21, 25, 26, 31, 32, 33, 38, 39,
40.

_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