The family Cyclopidae Dana, 1853 belonging to the order Cyclopoida, currently contains nearly 50 genera and about 660 species. There is no existing modem systematic study of the entire family Cyclopidae nor of its constituent subfamilies Eucyclopinae or Cyclopinae. Most of the genera in the Cyclopidae are in urgent need of revision. Detailed descriptions of species are absolutely essential for a more rigorous definition of the generic diagnoses within the subfamilies Eucyclopinae and Cyclopinae. This volume gives diagnoses and identification keys for two genera within the subfamily Eucyclopinae, the genus Paracyclops and the genus Ochridacyclops.
The study of Antarctic harpacticoid copepods is essential for understanding the biodiversity of extreme environments yet remains unexplored. This research, conducted during the sixth Turkish Antarctic Expedition, addresses the knowledge gap by investigating the harpacticoid fauna from three islands in western Antarctica: Dismal, Horseshoe, and Nansen. Samples from various aquatic habitats were meticulously analysed, leading to the identification of Harpacticus furcatus and the discovery of a new species, Harpacticus tae n. sp. The new species is characterized by unique morphological features, such as the absence of the abexopodal seta on the male antenna, distinguishing it from related species. On the other hand, our detailed re-description of H. furcatus allowed us to review and discuss p...
A new species of cyclopoid copepod, Ochridacyclops nipponensis is described from Japan. This is the third species of the genus. The type material was collected from small streams in the mountainous regions in Shikoku. The new species can easily be distinguished from other members of genus by its 12-segmented antennule, by the proportional length of genital double-somite relative to the length of 3 free abdominal somites, and by the shape of caudal rami. The male is unknown.