Eulagisca

Eulagisca is a genus of marine polychaete worms belonging to the family Polynoidae. The genus includes 5 species which are all found in the Southern and Antarctic Oceans and are notable for reaching a large size - 180 mm or more long - larger than any other species of Polynoidae.
Description.
Species of "Eulagisca" have 35–41 segments and 15 pairs of elytra. The lateral antennae are undivided and inserted terminally on the prostomium . There is a distinctive dorsal fold ("nuchal flap" in the taxonomic literature) on segment 2, and unlike the related genus "Pareulagisca", in "Eulagisca" all notochaetae are stout and have blunt tips.
Species.
Five species of "Eulagisca" are recognised as of August 2020: