Abstract
Fosshageniella glabra gen. et sp. nov. is described from the hyperbenthic community at two widely separated localities in the North Atlantic. The new genus exhibits the most primitive condition known in the Misophrioida for the structure ofthe fifth leg of both sexes, which retains the intercoxal sclerite, separate coxa and basis, a distinct endopod, and a segmentation pattern and armature of both rami almost identical to those postulated for the misophrioid ancestor. Arcticomisophria hispida sp. nov. is described from the Vøring Plateau in the North Atlantic. Its most outstanding features relate to the structure and armature of the mouthparts, which are considered to be the most plesiomorphic among misophrioid copepods. The allocation of this taxon to the genus Arcticomisophria is only tentative and should be reevaluated when additional material, in particular males of the type species, becomes available.
