Austropotamobius bihariensis

[2] It is supposed to have diverged/split ~15 Ma old from a common relative of A. torrentium from the Dinarides and evolved isolated due to the historically tectonic north-eastern movement of Tisza-Dacia mega-unit (including the Apuseni Mountains) through the Pannonian Basin, during the Miocene.

[3] The molecular divergence in 582 base length nucleotides of COI mtDNA sequences is supported by 43 mutational steps, a differentiation of 7.4% from the sister clade of A. torrentium located in north-western Dinarides[1]

The individuals, not longer than 10 cm, are brown dorsally, showing lighter colors on the ventral side with hints of orange on the claws.

In comparison with Austropotamobius torrentium (the stone crayfish), it has a shorter rostrum, the antennal scale is smooth without denticules and the claws are covered with tubercules that are bigger and not as many as on the stone crayfish claws.

The holotype (deposited at the Grigore Antipa National Museum of Natural History) was collected from Damiș river, Bratca commune, Bihor county.

A. bihariensis range.