The fat-headed minnow was taken at all stations except at the lower one
on the Marais des Cygnes, and was most abundant at the upper Neosho
station. Intensive seining at the lower Neosho station indicated that
this species preferred quiet water and firm mud bottom.
In the Neosho River in 1957 to 1959, habitats of the species of
_Pimephales_ seemed to be as follows: _Pimephales tenellus_ (mountain
minnow) occurred primarily in moderately flowing gravel riffles in the
downstream portions of the river. _Pimephales vigilax_ (parrot minnow)
was mostly in the quiet areas having mud bottom at the downstream end of
gravel bars, and less commonly on adjacent riffles, at the lower
station. _Pimephales notatus_ (blunt-nosed minnow) had a wider range of
habitats, occurring in quiet areas and moderate currents both upstream
and downstream. _Pimephales promelas_ (fat-headed minnow) occurred
throughout both rivers but was most abundant in the quiet water at the
uppermost stations.
#Campostoma anomalum# (Rafinesque)