A new species of the genus Uralocrangonyx Marin et Palatov, 2022 (Amphipoda: Crangonyctidae) from the Zhiguli Mountains, Samara Area, Russia

A new stygobiotic species of the genus Uralocrangonyx Marin et Palatov, 2022 (Crustacea: Amphipoda: Crangonyctidae) is described from a spring located in the Zhiguli Mountains, Samara Area, Russia, which significantly expands the known distribution of the genus to the west.The distinctive morphological differences between the two known species of the genus, such as the number of denticles on the apical comb-spines of the outer lobe of maxilla I, the shape of epimeral plates II-III, basi of pereopods V-VII and rami of uropods I-III, as well as the species distribution are discussed in the article.