Living inside the sponges Haliclona oculata (Linnaeus, 1759), Halichondria panicea (Pallas, 1766) and Isodictya ... [details]
Sandy sediments, coarse sand to gravel, and shelly sand. [details]
Amblyosyllis cincinnata was synonymized with A. finmarchica by Pettibone (1963), but was posteriorly considered to ... [details]
Sphaerosyllis brevifrons was synonymized with S. erinaceus (now in the genus Erinaceusyllis) by Pettibone (1963), ... [details]