Flabelligeridae is a family of polychaete worms, known as bristle-cage worms, notable for their cephalic cage: long slender chaetae forming a fan-like arrangement surrounding the eversible (able to be turned inside-out) head.[1][2] Unlike many polychaetes, they also have large, pigmented, complex eyes.[3][4]
Habitat
These worms live under stones and are known to burrow into sand.[5] They have a cosmopolitan distribution and live in a variety of marine habitats, from the deep sea to shallow coastal regions.[6]
The first species was Amphridite plumosa, described from Norway. Flabelligerids were placed in various similar polychaete families until Saint-Joseph erected the family (under the name Flabelligeriens) in 1894.[5][7]
Mazopherusa is a possible fossil example from the Carboniferous; other fossil material is only dubiously assigned to the family.[1]
References
^ abWestheide, Wilfried; Purschke, Günter; Bleidorn, Christoph; Helm, Conrad; Mackie, Andrew S.Y.; Böggemann, Markus; Blake, James A.; Ebbe, Brigitte; Zhadan, Anna E.; Salazar-Vallejo, Sergio I.; Dean, Harlan K.; Magalhães, Wagner; Martínez, Alejandro; Worsaae, Katrine; Núñez, Jorge; Fiege, Dieter; Maciolek, Nancy J. (2019). "7. Pleistoannelida". In Purschke, Günter; Böggemann, Markus; Westheide, Wilfried (eds.). Annelida Basal Groups and Pleistoannelida, Sedentaria I. Vol. 1. De Gruyter. pp. 398–421. doi:10.1515/9783110291582-007. ISBN9783110291582. S2CID243185961.