After five days, he found that lithium uptake by the abdominal muscle and a part of the crawfish that Doubert did not study—the animals' exoskeleton—increased in the warmest tank. These ...

The Big Creek crayfish is a two-inch, olive-tan crayfish with black blotches across its pincers, carapace and abdomen. The St. Francis River crayfish is also a two-inch crayfish with black blotches ...

The Black Creek crayfish is colorful, with a black carapace, a white or yellow dorsal stripe and a rust-colored abdomen with black stripes. The species occupies a small range in the lower St. Johns ...