6 
rainbow trout, collected in 1969 from pool 14, is clearly 
a stray from a tributary. Supplemental records for pools 
7, 9, and 10 (Nord 1967), undoubtedly also stragglers 
from tributaries, are available. 
*Umbra limi (Kirtland). — The mudminnow, re- 
corded from pools 7-9 (UMRCC 1953), probably is ac- 
cidental in the river proper. 
*Esox americanus Gmelin—The grass pickerel, al- 
though represented by several collections, is rare, and 
the specimens may have been stragglers from overflow 
ponds. Supplemental records for pools 9, 10 (UMRCC 
1953), 17 (Nord 1967), 18 (UMRCC 1948), 25 (UM- 
RCG 1951), and 26 (Barnickol & Starrett 1951), are 
available. 
Esox lucius Linnaeus—The northern pike is mod- 
erately common upstream from pool 11 and occasional 
downstream as far as the mouth of the Ohio River. Sup- 
plemental records are: pools 2 (UMRCC 1965), 3-5 
(UMRCC 1964), 13 (UMRCC 1967 eee) aL Ose? 
(Barnickol & Starrett 1951), 16 (UMRCC 1960), 18 
(UMRCC 1954), and 19 (UMRCC 195 0Ne 
Campostoma anomalum (Rafinesque).—The stone- 
roller is widely distributed but is distinctly uncommon. 
If there are permanent populations, they are localized 
in shallow runs and chutes, and it is possible that the 
occasional specimens are stragglers from small tribu- 
taries of the river. Supplemental records are available 
for pools 4, 7, 11 (UMRCG 1953), 10 (Becker 1966), 
and 17 (Nord 1967). 
*Dionda nubila (Forbes).—In 1963 a specimen of 
the Ozark minnow was seined at river mile 68 and an- 
other at mile 121, both on the Illinois side. If these 
fish came from tributaries, they crossed the river, for 
the species is not otherwise known in southern Illinois 
although it is common in Missouri streams. 
Cyprinus carpio Linnaeus.—The carp is an abundant 
and important fish throughout the river. Supplemental 
records are as follows: pools 5, 17 (UMRCG 1963); 
11 (UMRCC 1964), and B-26 (Barnickol & Starrett 
1951). 
*Ctenopharyngodon idella (Valenciennes).—A 34- 
inch, 21-pound male specimen of the grass carp was 
caught at Chester, Illinois, by commercial fisherman Paul 
DeSherlia in January 1971. This species, recently intro- 
duced in the southern states, has found its way into 
the Mississippi River and, according to fishermen, has 
since been caught at other sites. 
Ericymba buccata Cope —A few specimens of the sil- 
verjaw minnow were taken in the minnow seine at two 
sites (river miles 41 and 105) in 1963. 
Hybognathus argyritis Girard—A few specimens of 
this minnow were collected at several sites between the 
mouths of the Missouri and Ohio rivers. This species, 
recently rediscovered by Pflieger (1971), is widespread in 
the Missouri River system. 
Hybognathus hankinsoni Hubbs——The brassy min- 
now has been recorded from pools 3, 4, 6, and 9 (UM 
RCC 1953). It is also reported from several sites up- 
stream from pool | (Underhill 1957). 
Hybognathus nuchalis Agassiz—The silvery minnow 
is relatively common between Lake Pepin and pool 14 
and below the mouth of the Missouri River, but it has 
not been taken at all in the intermediate section. Sup. 
plemental records for pools 6-8, 10, and 11 (UMRCC 
1953) are assignable on geographic grounds to this spe. 
cies, but published records of “‘nuchalis” below the mouth 
of the Missouri River cannot be so assigned. 
Hybognathus placitus Girard.—The plains minnow i; 
moderately common in the silt-laden part of the rive 
below the mouth of the Missouri. 
Hybopsis aestivalis (Girard).—The speckled chub i 
represented by several specimens in most of the min 
now-seine collections made below Lake Pepin. Sup 
plemental records are as follows: pools 6, 8-11 (UMN 
REG*1953) 67 (Nord 907 
Hybopsis gelida (Girard) —The sturgeon chub is ex 
‘tremely rare and is confined to that part of the rive 
below the mouth of the Missouri. A supplemental rec 
ord from pool B-26 (Starrett & Barnickol unpublished 
is available. 
Hybopsis gracilis (Richardson) .—The flathead chu 
is represented in virtually every minnow-seine collectio 
made below the mouth of the Missouri River. 
Hybopsis mecki Jordan & Evermann.—The sickle 
fin chub is uncommon but is represented by a few spec 
mens in several collections taken below the mouth of th 
Missouri River. 
Hybopsis storeriana (Kirtland) .—The silver chub 
common throughout the river. Supplemental records a1 
available for pools 5-9 (UMRCC 1953). 
Hybopsis x-punctata Hubbs & Crowe.—The grav 
chub is rare but is represented in three recent minnoy 
seine collections made below the mouth of the Missou 
River. 
*Nocomis biguttatus (Kirtland).—The hornyhea 
chub is represented by one specimen in a 1963 collectic 
from pool 4. It is widely distributed above pool 1 (Ui 
derhill 1957). 
Notemigonus crysoleucas (Mitchill). — The golde 
shiner is widely distributed but not common. Suppl 
mental records are as follows: pools 6-8, 11 (UMRC 
1953), 16, and 20 (Nord 1967). 
Notropis amnis Hubbs & Greene—The pallid shin 
is rare at present. Supplemental records for pools 3, 
5,9, 11 (UMRCC 1953), and 21 (Starrett & Barnick 
unpublished) are available. In view of the present rari 
of the species, older records are not plotted, since t 
species has been decimated in many areas. 
*Notropis anogenus Forbes.—The pugnose shiner 
represented by a record for pool 4 (UMRCC 1953) a 
is probably accidental in the river. 
Notropis atherinoides Rafinesque.—The emerald shi 
er is the most abundant fish in the river. A supp 
mental record for pool 5 (UMRCC 1953) is availab 
Notropis blennius (Girard) —The river shiner is t 
second most abundant fish in the river, but is somew! 
less common below the mouth of the Missouri Ris 
than it is above that point. Supplemental records < 
available for pools 5 (UMRCC 1967) and 6 (UMR(¢ 
19539 
*Notropis boops Gilbert—The bigeye shiner 1s T¢ 
resented in two recent minnow-seine collections (rn 
miles 43 and 327), but it is probably accidental in 
river. 
