Image of an american eel

    American Eel

    Anguilla rostrata
    Photo of a spotted fishing spider perched on the water's surface amid floating duckweed plants

    Aquatic Spiders

    Dolomedes spp., Tetragnatha spp., and others
    Photo of backswimmer, side view

    Backswimmers

    About 32 North American species in the family Notonectidae
    Photo of a belted crayfish, also called Big River crayfish.

    Belted Crayfish (Big River Crayfish)

    Faxonius harrisonii (formerly Orconectes harrisonii)
    Photo of a Big Creek crayfish.

    Big Creek Crayfish

    Faxonius peruncus (formerly Orconectes peruncus)
    Illustration of a male black crappie in spawning coloration.

    Black Crappie

    Pomoxis nigromaculatus
    bleeding shiner

    Bleeding Shiner

    Luxilus zonatus
    Illustration of a male bluegill

    Bluegill

    Lepomis macrochirus
    Image of brown trout

    Brown Trout

    Salmo trutta
    Gray, speckled, translucent gelatinous blob cut in half to show structure

    Bryozoans (Moss Animals)

    Freshwater species in the phylum Bryozoa
    Image of a central stoneroller

    Central Stoneroller

    Campostoma pullum
    Image of a chain pickerel

    Chain Pickerel

    Esox niger
    Image of a chestnut lamprey

    Chestnut Lamprey

    Ichthyomyzon castaneus
    Illustration of common carp

    Common Carp

    Cyprinus carpio
    invasive icon

    Invasive

    Common Shiner

    Common Shiner

    Luxilus cornutus
    Photo of crane fly larva

    Crane Fly Larvae

    There are over 500 species of crane flies in North America.
    Photo of a spothanded crayfish viewed from above on white background.

    Crayfishes

    About 36 species in Missouri
    Image of a creek chub

    Creek Chub

    Semotilus atromaculatus
    Color illustration of Crystal Darter

    Crystal Darter

    Crystallaria asprella
    exclamation mark

    Endangered

    Photo of a devil crayfish.

    Devil Crayfish

    Lacunicambarus aff. diogenes
    Monkey Face Mussel

    Freshwater Mussels

    Bivalve molluscs in order Unionoida
    Photo of a golden crayfish viewed through the surface of creek water.

    Golden Crayfish

    Faxonius luteus (formerly Orconectes luteus)
    Image of a golden redhorse fish

    Golden Redhorse

    Moxostoma erythrurum
    Image of a golden shiner

    Golden Shiner

    Notemigonus crysoleucas
    Color illustration of grass pickerel, a long, narrow fish

    Grass Pickerel

    Esox americanus
    Image of a greenside darter fish

    Greenside Darter

    Etheostoma blennioides
    Image of a hornyhead chub fish

    Hornyhead Chub

    Nocomis biguttatus
    Photo of Hubbs' crayfish.

    Hubbs’ Crayfish

    Cambarus hubbsi
    Image of hybrid striped bass or "wiper"

    Hybrid Striped Bass (Wiper; Whiterock Bass)

    Morone chrysops x M. saxatilis
    No photo available

    Hydras

    Various species in the genus Hydra
    lilliput

    Lilliput

    Toxolasma parvus
    Image of a logperch

    Logperch

    Percina caprodes
    Illustration of a male longear sunfish

    Longear Sunfish

    Lepomis megalotis
    Image of a longnose gar fish

    Longnose Gar

    Lepisosteus osseus
    Photo of a longpincered crayfish.

    Longpincered Crayfish

    Faxonius longidigitus (formerly Orconectes longidigitus)
    Photo of a midge fly larva crawling on a rock in an aquarium

    Midge Fly Larvae

    Nearly 1,100 species in North America
    Photo of a Neosho midget crayfish.

    Neosho Midget Crayfish

    Faxonius macrus (formerly Orconectes macrus)
    Illustration of a Niangua darter

    Niangua Darter

    Etheostoma nianguae
    exclamation mark

    Endangered

    Image of a northern hogsucker

    Northern Hogsucker

    Hypentelium nigricans
    Image of a northern rock bass

    Northern Rock Bass (Goggle-Eye)

    Ambloplites rupestris
    Photo of an Ozark crayfish.

    Ozark Crayfish

    Faxonius ozarkae (formerly Orconectes ozarkae)
    ozark minnow

    Ozark Minnow

    Notropis nubilus
    pink papershell

    Pink Papershell

    Potamilus ohiensis
    Photo of a predaceous diving beetle

    Predaceous Diving Beetles (Water Tigers)

    Species in the beetle family Dytiscidae
    Image of rainbow trout

    Rainbow Trout

    Oncorhynchus mykiss
    Photo of a ramshorn snail on a wet rock.

    Ramshorn Snails

    Gyraulus, Helisoma, Menetus, Micromenetus, Planorbula spp.
    Image of a redear sunfish

    Redear Sunfish

    Lepomis microlophus
    Illustration of a redfin darter male in breeding colors.

    Redfin Darter

    Etheostoma whipplei
    exclamation mark

    Endangered

    Photo of a ringed crayfish.

    Ringed Crayfish

    Faxonius neglectus (formerly Orconectes neglectus)
    Photo of a saddleback crayfish.

    Saddleback Crayfish

    Faxonius medius (formerly Orconectes medius)

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