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Antennal scale
Antennal scale

Ventral edge of the antennal scale in A. bihariensis (left) and A. torrentium (right). The Idle Crayfish lacks the denticulations present in the Stone Crayfish.

Pârvulescu L. (2019): Introducing a new Austropotamobius crayfish species (Crustacea, Decapoda, Astacidae): a Miocene endemism of the Apuseni Mountains, Romania. Zoologischer Anzeiger 279: 94–102.