Description of some troglobiont cyclopids from cave waters of Venezia Giulia (northeastern Italy). Acanthocyclops gordani Petkovski, Acanthocyclops venustus stammen (Kiefer), Acanthocyclops troglophilus (Kiefer), Diacyclops charon (Kiefer) and Diacyclops tantalus (Kiefer), are recorded for the first time from Italy; Diacylops antrincola Kiefer is new to northeastern Italy; Metacyclops gasparoi n.sp. is new to science and belongs to minutus-group.