Specimens have large eyes and claws, as well as smooth bodies. The species comes in two color forms: Blue form crayfish are a dark hue with orange joints and tails, while purple form crayfish are ...

The genetic analysis revealed that these were a new species: the dusty crayfish. A blue-form adult female dusty crayfish (Figure a). A purple-form adult male (Figure b). CREDIT: Jiří Patoka.