# List of fishes of Montana

There are at least 31 game and 59 non-game fish species known to occur in Montana. Among Montana's fish, three are listed as endangered or threatened species and the Montana Department of Fish, Wildlife and Parks lists a number of species as species of concern.
Species are listed by common name, scientific name, typical habitat and occurrence. Common and scientific names are from the Montana Field Guide.

## Game fish
### Trout

Order: Salmoniformes, Family: Salmonidae
* Native species
** Westslope cutthroat trout, Oncorhynchus clarkii lewisi (Salish: pisɫ)
** Yellowstone cutthroat trout, Oncorhynchus clarkii bouvieri
** Columbia River redband trout, Oncorhynchus mykiss gairdneri
** Bull trout, Salvelinus confluentus (Salish: aáy or ɫaʔáy; Kutenai: tuhuǂ)
** Montana Arctic grayling, Thymallus arcticus montanus
** Lake trout, Salvelinus namaycush
** Mountain whitefish, Prosopium williamsoni (Salish: x̣ʷy̓u)
** Pygmy whitefish, Prosopium coulteri
** Lake whitefish, Coregonus clupeaformis
* Non-native, exotic species
** Rainbow trout, Oncorhynchus mykiss (Other than the red band subspecies, rainbow trout are an introduced species in Montana)
** Brown trout, Salmo trutta
** Golden trout, Oncorhynchus mykiss aguabonita
** Brook trout, Salvelinus fontinalis
** Arctic grayling, Thymallus arcticus - adfluvial grayling introduced into Montana Lakes
** Chinook salmon, Oncorhynchus tshawytscha
** Kokanee salmon, Oncorhynchus nerka
** Cisco, Coregonus artedi

### Paddlefish

Order: Acipenseriformes, Family: Polyodontidae
* Paddlefish, Polyodon spathula

### Pike

Order: Esociformes, Family: Esocidae
* Non-native, exotic species
** Northern pike, Esox lucius
** Tiger muskellunge, Esox masquinongy × lucius

### Bass, Sunfish

Order: Perciformes, Family: Centrarchidae
* Non-native, exotic species
** Black crappie, Pomoxis nigromaculatus
** Largemouth bass, Micropterus salmoides
** Smallmouth bass, Micropterus dolomieu
** White crappie, Pomoxis annularis

### Perch

Order: Perciformes, Family: Percidae
* Native species
** Sauger, Sander canadensis
* Non-native, exotic species
** Yellow perch, Perca flavescens
** Walleye, Sander vitreus

### Catfish

Order: Siluriformes, Family: Ictaluridae
* Native species
** Channel catfish, Ictalurus punctatus

### Sturgeon

Order: Acipenseriformes, Family: Acipenseridae
* Native species
** Pallid sturgeon, Scaphirhynchus albus
** Shovelnose sturgeon, Scaphirhynchus platorynchus
** White sturgeon, Acipenser transmontanus

### Burbot

Order: Gadiformes, Family: Gadidae
* Native species
** Burbot, Lota lota

## Non-game fish
### Bass, sunfish

Order: Perciformes, Family: Centrarchidae
* Non-native, exotic species
** Bluegill, Lepomis macrochirus
** Green sunfish, Lepomis cyanellus
** Pumpkinseed, Lepomis gibbosus
** Rock bass, Ambloplites rupestris

### Perch

Order: Perciformes, Family: Percidae
* Native species
** Iowa darter, Etheostoma exile

### Temperate basses

Order: Perciformes, Family: Moronidae
* Non-native, exotic species
** White bass, Morone chrysops

### Catfish

Order: Siluriformes, Family: Ictaluridae
* Native species
** Stonecat, Noturus flavus
* Non-native, exotic species
** Black bullhead, Ameiurus melas
** Yellow bullhead, Ameiurus natalis

### Drum

Order: Perciformes, Family: Sciaenidae
* Native species
** Freshwater drum, Aplodinotus grunniens

### Smelt

Order: Salmoniformes, Family: Osmeridae
* Non native, exotic species
** Rainbow smelt, Osmerus mordax

### Gars

Order: Lepisosteiformes. Family: Lepisosteidae
* Native species
** Shortnose gar, Lepisosteus platostomus

### Mooneyes

Order: Hiodontiformes, Family: Hiodontidae
* Native species
** Goldeye, Hiodon alosoides

### Mollies

Order: Cyprinodontiformes, Family: Poeciliidae
* Non-native, exotic species
** Green swordtail, Xiphophorus helleri
** Sailfin molly, Poecilia latipinna
** Shortfin molly, Poecilia mexicana
** Variable platyfish, Xiphophorus variatus
** Western mosquitofish, Gambusia affinis

### Killifish

Order: Cyprinodontiformes, Family: Fundulidae
* Non-native, exotic species
** Northern Plains killifish, Fundulus kansae
** Banded killifish, Fundulus diaphanus

### Minnows

Order: Cypriniformes, Family: Cyprinidae
* Native species
** Brassy minnow, Hybognathus hankinsoni
** Emerald shiner, Notropis atherinoides
** Fathead minnow, Pimephales promelas
** Flathead chub, Platygobio gracilis
** Golden shiner, Notemigonus crysoleucas
** Longnose dace, Rhinichthys cataractae
** Northern pikeminnow, Ptychocheilus oregonensis (Salish: qʷq̓é)
** Northern redbelly dace, Phoxinus eos
** Peamouth, Mylocheilus caurinus
** Allegheny pearl dace, Margariscus margarita
** Northern pearl dace, Margariscus nachtriebi
** Plains minnow, Hybognathus placitus
** Redside shiner, Richardsonius balteatus
** Sand shiner, Notropis stramineus
** Sicklefin chub, Macrhybopsis meeki
** Western silvery minnow, Hybognathus argyritis
** Sturgeon chub, Macrhybopsis gelida
** Lake chub, Couesius plumbeus
** Creek chub, Semotilus atromaculatus
* Non-native, exotic species
** Goldfish, Carassius auratus
** Common carp, Cyprinus carpio
** Spottail shiner, Notropis hudsonius
** Utah chub, Gila atraria

### Suckers

Order: Cypriniformes, Family: Catostomidae
* Native species
** Bigmouth buffalo, Ictiobus cyprinellus
** Blue sucker, Cycleptus elongatus
** Largescale sucker, Catostomus macrocheilus
** Longnose sucker, Catostomus catostomus
** Mountain sucker, Catostomus platyrhynchus
** River carpsucker, Carpiodes carpio
** Shorthead redhorse, Moxostoma macrolepidotum
** Smallmouth buffalo, Ictiobus bubalus
** White sucker, Catostomus commersoni

### Mudminnows

Order: Esociformes, Family: Umbridae
* Non-native, exotic species
** Central mudminnow, Umbra limi

### Sculpins

Order: Scorpaeniformes, Family: Cottidae
* Native species
** Deepwater sculpin, Myoxocephalus thompsonii
** Mottled sculpin, Cottus bairdi
** Slimy sculpin, Cottus cognatus
** Spoonhead sculpin, Cottus ricei
** Torrent sculpin, Cottus rhotheus

### Sticklebacks

Order: Gasterosteiformes, Family: Gasterosteidae
* Native species
** Brook stickleback, Culaea inconstans

### Trout-perch

Order: Percopsiformes, Family: Percopsidae
* Native species
** Trout-perch, Percopsis omiscomaycus