Content tagged with "Aquatic Invertebrates"

Photo of eastern dobsonfly

Eastern Dobsonfly (Hellgrammite)

Corydalus cornutus
Adult dobsonflies are huge and mothlike, with large wings and a weak, fluttery flight. The fiercely predaceous aquatic larvae, called hellgrammites, are well-known to anglers, who often use them as bait.

Read more

Photograph of Ebonyshell freshwater mussel shell exterior view


Fusconaia ebena
At one time the most valuable shell to the commercial button industry, the ebonyshell is now classified as Endangered in Missouri and is a candidate for federal Endangered status.

Read more

elephant's ear

Elephantear (Elephant's Ear)

Elliptio crassidens
Today found only in the Meramec River, the elephantear has been classified as Endangered in Missouri and is a candidate for federal Endangered status.

Read more



Alasmidonta marginata
The elktoe is one of many Missouri mussels with a declining population.

Read more


Ellipse and Bleedingtooth

Venustaconcha ellipsiformis and V. pleasii
These small mussels use darters, a type of fish, as hosts for their young.

Read more



Lampsilis siliquoidea
The fatmucket was a favorite species harvested for the button industry in the early 1900s.

Read more

fragile papershell

Fragile Papershell

Leptodea fragilis
A widespread mussel that relies on freshwater drum as host fish for the developing young.

Read more

Photo of a freckled crayfish.

Freckled Crayfish

Cambarus maculatus
The freckled crayfish is powerfully built, yellowish tan, with numerous conspicuous black spots on its pincers, carapace, and abdomen. It is largely restricted to the Courtois Hills section of the Meramec River basin.

Read more

Photo of a freshwater jellyfish

Freshwater Jellyfish

Craspedacusta sowerbyii
We’ve all heard horror stories about stinging jellyfish in the ocean, but did you know that there are similar creatures living in the freshwater of Missouri? Fortunately, they’re harmless!

Read more

giant floater

Giant Floater

Pygandon grandis
When a floater dies, this large mussel with a thick shell will actually rise to the water surface and float as it decays.

Read more