Amerigodrilus Holmquist, 1985 (original description)
Amerigodrilus kleerekoperi (Marcus, 1944) (new combination reference)
Amerigodrilus siolii (Du Bois-Reymond Marcus, 1947) (new combination reference)
Christerius Holmquist, 1985 (original description)
Christerius litoralis (Erséus, 1976) (new combination reference)
Kopilrok Holmquist, 1985 (original description)
Kopilrok flexipenis Holmquist, 1985 (original description)
Kopilrok sagavanirktoki Holmquist, 1985 (original description)
Lophochaeta paucipilifer Holmquist, 1985 (original description)
Tasserkidrilus Holmquist, 1985 (original description)
Tasserkidrilus kessleri (Hrabe, 1962) (new combination reference)
Teneridrilus Holmquist, 1985 (original description)
Tubifex litoralis Erséus, 1976 accepted as Christerius litoralis (Erséus, 1976) (additional source)

 Etymology

 for Amerigodrilus Holmquist, 1985

The name Amerigodrilus alludes to the fact that the three species included are all South American [details]

 Etymology

 for Kopilrok Holmquist, 1985

kopilrok is Eskimo for worm [details]

 Etymology

 for Lophochaeta paucipilifer Holmquist, 1985

Holmquist named it paucipilifer because of the scant hair setae found [details]

 Etymology

 for Tasserkidrilus Holmquist, 1985

Tasserk in Tasserkidrilus is Eskimo for lake [details]

 Etymology

 for Teneridrilus Holmquist, 1985

named for the delicate appearance of the type-species. [details]

 Synonymy

 for Tubifex filum Michaelsen, 1901

Possibly identical to Lophochaeta ignota (Holmquist, 1985) [details]