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Ampharetidae
	Ampharete acutifrons (Grube, 1860) figure 3
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Annelida
Clade:	Pleistoannelida
Clade:	Sedentaria
Order:	Terebellida
Family:	Ampharetidae; Malmgren, 1866
Subfamilies/genera
	See text.

Ampharetidae are a family of terebellid "bristle worm" (class Polychaeta).^[1]^[2] As such, they belong to the order Canalipalpata, one of the three main clades of polychaetes. They appear to be most closely related to the peculiar alvinellids (Alvinellidae) which inhabit the deep sea, and somewhat less closely to the well-known trumpet worms (Pectinariidae). These three appear to form one of the main clades of terebellids.^[2]

Almost all are (like polychaetes in general) marine organisms; some inhabit brackish or freshwater though. Most are smallish deposit feeders which frequently live in small tubes they build from mud or similar substrate, or burrow in the sand.

Subfamilies and genera

In 2001, Rouse and Pleijel divided the Ampharetidae into three subfamilies: the large Ampharetinae, the much smaller Melinninae, and the monotypic Uschakovinae.^[3] Also, there are some ampharetid genera incertae sedis or in a quite basal position:

As of late 2021, the World Register of Marine Species recognizes the following subdivisions:^[1]

Amaginae Holthe, 1986
Ampharetinae Malmgren, 1866
Amphicteinae Holthe, 1986
Rytocephalus Quatrefages, 1866
Uschakovius Laubier, 1973

References

^ ^a ^b Read G, Fauchald K, eds. (2021). "Ampharetidae Malmgren, 1866". World Polychaeta database. World Register of Marine Species. Retrieved 9 December 2021.
^ ^a ^b Rouse, Greg W. & Fauchald, Kristian (1998). "Recent views on the status, delineation and classification of the Annelida". American Zoologist. 38 (6): 953–964. doi:10.1093/icb/38.6.953.
^ Rouse, Gregory; Pleijel, Fredrik (2001). Polychaetes. OUP Oxford. p. 242. ISBN 9780198506089.