High Quality Content by WIKIPEDIA articles! The original specimens came from Lawn Ridge, Marshall County, Illinois. It lives in slow-flowing bodies of water, and can survive by burrowing if they dry out. O. immunis is only found in slow-flowing bodies of water, such as streams, ponds, marshes and roadside ditches, in contrast to O. virilis which also lives in rivers with moderate flow. It can survive in areas with large fluctuations in the amount of available water, by burrowing into the ground when the surface waters recede. O. immunis was first described by Hermann August Hagen in 1870, in his Monograph of the North American Astacidae, under the name Cambarus immunis. Orconectes immunis, the calico crayfish or papershell crayfish, is a species of North American freshwater crayfish which has also been introduced to Europe, where it lives along the Upper Rhine.
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