NIPHARGUS CERJANENSIS, SP. N. AND N. KARAMANI SCHELL. 1935 FROM THE SUBTERRANEAN WATERS OF WESTERN BALKAN (CONTRIBUTION TO THE KNOWLEDGE OF THE AMPHIPODA 277)

From the subterranean waters of Cerjanska Jama Cave in Croatia (Klenovnik, Ravna Gora, Varaždin reg.) a new species of the family Niphargidae (Crustacea, Amphipoda), Niphargus cerjanensis, sp. n. is described and figured, species rather close to the Niphargus stygius Complex of taxa. The poorly known taxon Niphargus stygius karamani Schellenberg, 1935 known from the subterranean waters on Slovenian-Croatian border region is redescribed and figured. Taxonomical position of both taxa is discussed and N. karamani is elevated to the specific rank.