On two new or interesting Amphipoda from Italy and Montenegro (Contribution to the knowledge of the Amphipoda 290)

Abstract

One new species of the family Niphargidae (Amphipoda Gammaridea), Niphargus frontalis, sp. n. is described from the subterranean waters of Frontale, Coldigioco, Italy, and its relations to other similar Niphargus species from Italy is discussed. The species Typhlogammarus mrazeki Schäf. 1906 (fam. Typhlogammaridae) is mentioned from new locality in Montenegro and the variability of this species is presented.