Great info Canyon! I will add a very useful link to help identify the following species...

Red swamp crawfish (Procambarus clarkii)
White River crawfish (Procambarus acutus)
Calico (papershell) crayfish (Orconectes immunis)
Rusty crayfish (Orconectes rusticus)
Virile (northern) crayfish

This Missouri Conservation Document was key for me to make sure that the crawdads I bucket stocked into my pond were the native Virile. You simply can not ID these critters with the everyday photos...

https://huntfish.mdc.mo.gov/sites/default/files/downloads/crayfish_id_brochure_6-08_0.pdf


Fish on!,
Noel