PARANANNOPIDAE (COPEPODA, HARPACTICOIDA) FROM SUBLITTORAL SOFT SEDIMENTS IN SPITSBERGEN

Based on specimens of Paranannopidae collected from 30 to 123m depth i n Sassenfjord, Spitsbergen, two species of Paradanielssenia Soyer, 197 0 (P. christineae sp. nov. and P. kathleenae sp. nov.) are described. These can be distinguished from known species by differences in the nu mber of claviform aesthetascs on the mouthparts and in the arrangement or form of setae on the legs. A key to species of Paradanielssenia is provided. Mucrosenia gen. nov. (type species M. kendalli sp. nov.) is established on the basis of a single female and can be distinguished from all known paranannopid genera by the structure of the caudal ramu s and the P2 endopod-2 which has no inner seta and a large mucroniform process at the outer distal corner. Psammis kliei Smirnov, 1946 is as signed to this genus as species incertae sedis. Danielssenia quadriset a Gee, 1988 is recorded for the first time outside its type locality i n Oslofjord. Danielssenia spitsbergensis sp. nov. is described from a single male specimen and can easily be distinguished from other known species by the presence of only two outer spines on exopod-3 of P3-4. However, because of differences in the structure of the P2 endopod and P5, the species is placed incertae sedis within Danielssenia pending the discovery of the female.