Achelia borealis Ascorhynchus abyssi Boreonymphon abyssorum Boreonymphon ossiansarsi Callipallene acus Colossendeis angusta Colossendeis proboscidea Cordylochele malleolata Eurycyde hispida Nymphon brevirostre Nymphon brevitarse Nymphon elegans Nymphon grossipes Nymphon helleri Nymphon hirtipes Nymphon leptocheles Nymphon macronyx Nymphon macrum Nymphon megalops Nymphon micronyx Nymphon microrhynchum Nymphon schimkewitschi Nymphon serratum Nymphon sluiteri Nymphon stroemi Nymphon tenellum Phoxichilidium femoratum Pseudopallene brevicollis Pseudopallene circularis Pseudopallene spinipes Pycnogonum crassirostrum