Ok in this article they call it Water Nymph.

Water Nymph Crayfish

I did not find one that specifically was named prairie nymph. The Prairie Crayfish in Kansas has short stock pincers so it is not that one. The Water Nymph is said to be in the same area as the Northern Crayfish but less common.

Prarie Crayfish

That is cool. I didn't even know that species existed or was in my area.

Thanks!

John

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