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.^[1]

Eulagisca
Dorsal view of a Eulagisca uschakovi specimen from Museums Victoria
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Annelida
Clade:	Pleistoannelida
Subclass:	Errantia
Order:	Phyllodocida
Family:	Polynoidae
Genus:	Eulagisca McIntosh, 1885
Type species
Eulagisca corrientis McIntosh, 1885

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.^[1]

Species

Five species of Eulagisca are recognised as of August 2020:^[2]

• Eulagisca corrientis McIntosh, 1885
• Eulagisca gigantea Monro, 1939
• Eulagisca macnabi Pettibone, 1997
• Eulagisca puschkini Averincev, 1972
• Eulagisca uschakovi Pettibone, 1997