A New Species And A New Genus Of Cerviniidae (Copepoda: Harpacticoida) From The Beaufort Sea, With A Revision Of The Family

Cercinia unisetosa n. sp. from the bathyal zone of the Beaufort Sea (Arctic Ocean) is unique in the Cervinia in that is possesses a reduced fifth leg, moderate length caudal rami, and only one seta on the bases of the mandible and the maxilliped. The discovery of the male of Pseudocervinia magna (Smirnov, 1946) proves that the species should be redesignated as a Cervinia as originally described. Expansicervinia glacieria n. gen, & n. sp. from the deep-sea of the same area proves to be unique in the Cerviniidae in three expansions; the ventral margins of second thoracic segment; the basal segment of the antennule; and the terminal endopodite of the second leg. The genus Stratiopontotes Soyer, 1970 is synonymized with Ameliotes Por, 1969. Keys to the genus Cervinia and the family Cerviniidae are presented.