Content tagged with "Aquatic Invertebrates"

maple leaf


Quadrula quadrula
The mapleleaf spawns in the summer, using catfish as a host.

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Photo of a mayfly


There are hundreds of species in North America.
The mayflies are a fascinating group of insects. The nymphs live from months to years under water, breathing through gills, and the adults fly around in the air, mating, living for only a day or two.

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Quadrula metanevra
Finding the monkey’s face in this mussel's shell is left up to the imagination.

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image of Mosquito


There are about 50 species of mosquitoes in our state.
Who likes mosquitoes? Certainly not people! However, mosquitoes have lived on Earth for millions of years, and all that time they’ve been feeding fish with their legions of “wriggler” larvae.

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Actinonaias ligamentina
One of the most widespread and numerous mussels in southern Missouri.

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Image of a neosho midget crayfish

Neosho Midget Crayfish

Orconectes macrus
This small crayfish is a subdued mottled brown, with a prominent black band crossing the carapace near its junction with the abdomen. The body is stout, and the pincers are broad and powerful. It is found in the Neosho stream drainage of southwestern Missouri and northwestern Arkansas.

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Image of a virile crayfish

Northern Crayfish (Virile Crayfish)

Oronectes virilis
The northern crayfish is large, reddish-brown or green, and without prominent markings. The pincers are green with orange tips and in adults are conspicuously studded with whitish knobs. Paired dark blotches run lengthwise along the abdomen. This species is widespread.

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Image of an ozark crayfish

Ozark Crayfish

Orconectes ozarkae
This crayfish, found in the White and Black stream systems, is light brown to reddish-brown with numerous black specks on the pincers and often on the abdomen as well. The pincers are broad and powerful.

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paper pondshell

Paper Pondshell (Paper Floater)

Utterbackia imbecillis
Unlike most other freshwater mussels, this species is hermaphrodic: An individual mussel can be both male and female.

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Photo of a papershell crayfish, also called calico crayfish.

Papershell Crayfish (Calico Crayfish)

Orconectes immunis
The papershell crayfish — usually only found in the northern half of the state — is rather plain: gray-green with a pale central zone along the middle of the carapace and abdomen. The pincers are orange-tipped, and in mature males are tinged with purple.

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