The review of a large amount of material previously identified as the terebellid annelid, Thelepus cincinnatus (Fabricius, 1780) shows that, within European waters from the Mediterranean to the North Pole, this species should be split into four species,

The review of a large amount of material previously identified as the terebellid annelid, Thelepus cincinnatus (Fabricius, 1780) shows that, within European waters from the Mediterranean to the North Pole, this species should be split into four species,

Streblosoma bairdi (Malmgren, 1866) and Thelepus cincinnatus (Fabricius, 1780) are the type species of their respective genera, described from specimens from northern European waters, off Sweden and Greenland, respectively. Both species have subsequently