Aberrantidrilus cuspis (Erséus & Dumnicka, 1988) (additional source)
Aberrantidrilus subterraneus (Rodriguez & Giani, 1989) (additional source)
Abyssidrilus Erséus, 1992 (original description)
Abyssidrilus altoides Erséus, 1992 (original description)
Abyssidrilus opulentus Erséus, 1992 (original description)
Abyssidrilus potens Erséus, 1992 (original description)
Adelodrilus Cook, 1969 (additional source)
Aktedrilus Knöllner, 1935 (additional source)
Aktedrilus paradentatus Erséus, 1984 (additional source)
Albanidrilus Erséus, 1992 (original description)
Atlantidrilus hamulus Erséus, 1992 (original description)
Bathydrilus Cook, 1970 (additional source)
Bermudrilus Erséus, 1979 (additional source)
Coralliodrilus Erséus, 1979 (additional source)
Discordiprostatus longisetosus (Brinkhurst & Baker, 1979) accepted as Nootkadrilus longisetosus (Brinkhurst & Baker, 1979) (new combination reference)
Duridrilus Erséus, 1983 (additional source)
Gianius Erséus, 1992 (original description)
Inanidrilus Erséus, 1979 (additional source)
Inermidrilus Erséus, 1992 (original description)
Jamiesoniella Erséus, 1981 (additional source)
Marionidrilus Erséus, 1992 (original description)
Mexidrilus Erséus, 1992 (original description)
Mexidrilus obtusus Erséus, 1992 (original description)
Milliganius Erséus, 1992 (original description)
Milliganius compactus (Erséus, 1990) (new combination reference)
Milliganius sabulosus (Erséus, 1979) (new combination reference)
Nootkadrilus Baker, 1982 (additional source)
Olavius Erséus, 1984 (additional source)
Pacifidrilus Erséus, 1992 (original description)
Pacifidrilus darvelli (Erséus, 1984) (basis of record)
Paraktedrilus Erséus, 1992 (original description)
Pectinodrilus Erséus, 1992 (original description)
Pectinodrilus heronensis (Erséus, 1981) accepted as Pectinodrilus rectisetosus (Erséus, 1979) (new combination reference)
Pectinodrilus rectisetosus (Erséus, 1979) (new combination reference)
Peosidrilus acochlearis (Erséus & Loden, 1981) (new combination reference)
Peosidrilus aduncus Erséus, 1992 (original description)
Peosidrilus dalei Erséus, 1992 (original description)
Peosidrilus riseri Erséus, 1992 (original description)
Phallodrilinae Brinkhurst, 1971 (additional source)
Phallodriloides Erséus, 1992 (original description)
Phallodriloides exiguus (Erséus, 1979) (new combination reference)
Phallodriloides lobatus (Erséus, 1983) (new combination reference)
Phallodriloides macmasterae (Erséus, 1986) (new combination reference)
Phallodriloides pinnulatus Erséus, 1992 (original description)
Phallodrilus acochlearis (Erséus & Loden, 1981) accepted as Peosidrilus acochlearis (Erséus & Loden, 1981) (new combination reference)
Phallodrilus albanensis Erséus, 1990 accepted as Pirodriloides albanensis (Erséus, 1990) (new combination reference)
Phallodrilus altus Erséus, 1980 accepted as Abyssidrilus altus (Erséus, 1980) (new combination reference)
Phallodrilus ampullarius Erséus & Davis, 1989 accepted as Pectinodrilus ampullarius (Erséus & Davis, 1989) (new combination reference)
Phallodrilus aquaedulcis Hrabě, 1960 accepted as Gianius aquaedulcis (Hrabě, 1960) (new combination reference)
Phallodrilus aquilinus Erséus & Davis, 1989 accepted as Pacifidrilus aquilinus (Erséus & Davis, 1989) (new combination reference)
Phallodrilus bakeri Kossmagk-Stephan & Erséus, 1985 accepted as Paraktedrilus bakeri (Kossmagk-Stephan & Erséus, 1985) (new combination reference)
Phallodrilus biparis Erséus, 1983 accepted as Atlantidrilus biparis (Erséus, 1983) (new combination reference)
Phallodrilus bipartitus Erséus, 1990 accepted as Uniporodrilus bipartitus (Erséus, 1990) (new combination reference)
Phallodrilus boeschi Erséus, 1984 accepted as Peosidrilus boeschi (Erséus, 1984) (new combination reference)
Phallodrilus caviatriatus Erséus, 1984 accepted as Peosidrilus caviatriatus (Erséus, 1984) (new combination reference)
Phallodrilus christeri Davis, 1985 accepted as Mexidrilus christeri (Davis, 1985) (new combination reference)
Phallodrilus coeloprostatus Cook, 1969 accepted as Peosidrilus coeloprostatus (Cook, 1969) (new combination reference)
Phallodrilus compactus Erséus, 1990 accepted as Milliganius compactus (Erséus, 1990) (new combination reference)
Phallodrilus constrictus Erséus, 1988 accepted as Mexidrilus constrictus (Erséus, 1988) (new combination reference)
Phallodrilus cristolatus Erséus, 1983 accepted as Gianius cristolatus (Erséus, 1983) (new combination reference)
Phallodrilus crypticus Rodriguez & Giani, 1989 accepted as Gianius crypticus (Rodriguez & Giani, 1989) (new combination reference)
Phallodrilus cuspis Erséus & Dumnicka, 1988 accepted as Abyssidrilus cuspis (Erséus & Dumnicka, 1988) accepted as Aberrantidrilus cuspis (Erséus & Dumnicka, 1988) (new combination reference)
Phallodrilus darvelli Erséus, 1984 accepted as Pacifidrilus darvelli (Erséus, 1984) (new combination reference)
Phallodrilus darwelli Erséus, 1984 accepted as Pacifidrilus darwelli (Erséus, 1984) accepted as Pacifidrilus darvelli (Erséus, 1984) (new combination reference)
Phallodrilus davisi Erséus, 1984 accepted as Mexidrilus davisi (Erséus, 1984) (new combination reference)
Phallodrilus densespectinis Erséus, 1987 accepted as Gianius densespectinis (Erséus, 1987) (new combination reference)
Phallodrilus distinctus Erséus & Davis, 1989 accepted as Pseudospiridion distinctus (Erséus & Davis, 1989) (new combination reference)
Phallodrilus dorsospermatheca Davis, 1985 accepted as Peosidrilus dorsospermatheca (Davis, 1985) (new combination reference)
Phallodrilus duplex Erséus, 1987 accepted as Pectinodrilus duplex (Erséus, 1987) (new combination reference)
Phallodrilus elongatus Erséus, 1986 accepted as Somalidrilus elongatus (Erséus, 1986) (new combination reference)
Phallodrilus exiguus Erséus, 1979 accepted as Phallodriloides exiguus (Erséus, 1979) (new combination reference)
Phallodrilus firmus Erséus, 1979 accepted as Thalassodrilus firmus (Erséus, 1979) (new combination reference)
Phallodrilus flabellifer Erséus, 1984 accepted as Peosidrilus flabellifer (Erséus, 1984) accepted as Peosidriloides flabellifer (Erséus, 1994) (new combination reference)
Phallodrilus georgei Erséus, 1987 accepted as Inermidrilus georgei (Erséus, 1987) (new combination reference)
Phallodrilus granifer Erséus, 1990 accepted as Pectinodrilus granifer (Erséus, 1990) (new combination reference)
Phallodrilus grasslei Erséus, 1984 accepted as Mexidrilus grasslei (Erséus, 1984) (new combination reference)
Phallodrilus hallae Cook & Hiltunen, 1975 accepted as Thalassodrilus hallae (Cook & Hiltunen, 1975) (new combination reference)
Phallodrilus hessleri Erséus, 1989 accepted as Abyssidrilus hessleri (Erséus, 1989) (new combination reference)
Phallodrilus hirsutus Erséus, 1986 accepted as Peosidrilus hirsutus (Erséus, 1986) (new combination reference)
Phallodrilus inconspicuus Erséus, 1979 accepted as Marionidrilus inconspicuus (Erséus, 1979) (new combination reference)
Phallodrilus klarae Erséus, 1987 accepted as Thalassodrilus klarae (Erséus, 1987) (new combination reference)
Phallodrilus labouichensis Rodriguez & Giani, 1989 accepted as Gianius labouichensis (Rodriguez & Giani, 1989) (new combination reference)
Phallodrilus lobatus Erséus, 1983 accepted as Phallodriloides lobatus (Erséus, 1983) (new combination reference)
Phallodrilus macmasterae Erséus, 1986 accepted as Phallodriloides macmasterae (Erséus, 1986) (new combination reference)
Phallodrilus marionensis Erséus, 1979 accepted as Pectinodrilus marionensis (Erséus, 1979) (new combination reference)
Phallodrilus messanensis Erséus, 1987 accepted as Pirodrilus messanensis (Erséus, 1987) (new combination reference)
Phallodrilus minutissimus Erséus, 1987 accepted as Mexidrilus minutissimus (Erséus, 1987) (new combination reference)
Phallodrilus minutus Hrabĕ, 1973 accepted as Pirodrilus minutus (Hrabĕ, 1973) (new combination reference)
Phallodrilus molestus Erséus, 1988 accepted as Pectinodrilus molestus (Erséus, 1988) (new combination reference)
Phallodrilus monnioti Erséus, 1987 accepted as Gianius monnioti (Erséus, 1987) (new combination reference)
Phallodrilus multiplex Erséus, 1990 accepted as Pectinodrilus multiplex (Erséus, 1990) (new combination reference)
Phallodrilus nasutus Erséus, 1990 accepted as Uniporodrilus nasutus (Erséus, 1990) (new combination reference)
Phallodrilus nervosus Erséus, 1990 accepted as Pectinodrilus nervosus (Erséus, 1990) (new combination reference)
Phallodrilus nidarosiensis Erséus, 1987 accepted as Mexidrilus nidarosiensis (Erséus, 1987) (new combination reference)
Phallodrilus obscurus Cook, 1969 accepted as Peosidrilus obscurus (Cook, 1969) (new combination reference)
Phallodrilus parviatriatus Cook, 1971 accepted as Pirodrilus parviatriatus (Cook, 1971) (new combination reference)
Phallodrilus pinguis Erséus, 1983 accepted as Pirodrilus pinguis (Erséus, 1983) (new combination reference)
Phallodrilus postspermathecatus Erséus, 1980 accepted as Mexidrilus postspermathecatus (Erséus, 1980) (new combination reference)
Phallodrilus profundus Cook, 1970 accepted as Abyssidrilus profundus (Cook, 1970) (new combination reference)
Phallodrilus rectisetosus Erséus, 1979 accepted as Pectinodrilus rectisetosus (Erséus, 1979) (new combination reference)

Indian Ocean for Somalidrilus elongatus (Erséus, 1986) 

Holotype USNM 143573, verbatimGeounit continental slope of..., identified as Phallodriloides pinnulatus Erséus, 1992
Holotype USNM 143578, verbatimGeounit continental slope of..., identified as Abyssidrilus opulentus Erséus, 1992
Holotype USNM 143581, verbatimGeounit continental slope of..., identified as Abyssidrilus potens Erséus, 1992
Holotype USNM 143585, verbatimGeounit Continental slope of..., identified as Abyssidrilus altoides Erséus, 1992
Holotype USNM 143586, verbatimGeounit Continental slope of..., identified as Mexidrilus obtusus Erséus, 1992
Holotype USNM 143608, geounit Georges Bank, identified as Peosidrilus dalei Erséus, 1992
Holotype USNM 143609, verbatimGeounit Off New Yersey, U.S...., identified as Peosidrilus aduncus Erséus, 1992
Holotype USNM 143610, verbatimGeounit Liberty Point. Robin..., identified as Peosidrilus riseri Erséus, 1992
Holotype USNM 143613, geounit Georges Bank, identified as Atlantidrilus hamulus Erséus, 1992

 Depth range

 for Abyssidrilus altoides Erséus, 1992

Bathyal sediments, 1991 m depth [details]

 Depth range

 for Abyssidrilus opulentus Erséus, 1992

Deep-sea sediments. 2002-3009m in depth. [details]

 Depth range

 for Abyssidrilus potens Erséus, 1992

Deep-sea sediments, 3006-3011 m depth [details]

 Depth range

 for Atlantidrilus Erséus, 1982

All Atlantidrilus, except A. vestigium, are deepsea species [details]

 Depth range

 for Atlantidrilus hamulus Erséus, 1992

Known only from type locality off Massachusetts (Northwest Atlantic). Bathyal sediments, 2114 m depth. [details]

 Depth range

 for Mexidrilus obtusus Erséus, 1992

Described from Bathyal sediments, 799 m depth [details]

 Depth range

 for Peosidrilus riseri Erséus, 1992

Intertidal coarse sand [details]

 Distribution

 for Abyssidrilus Erséus, 1992

The deep-sea species are known from all major Oceans (Atlantic, Indian, Pacific) as well as from Western Beaufort ... [details]

 Distribution

 for Abyssidrilus potens Erséus, 1992

Off North- and South-Carolina (NW-Atlantic) [details]

 Distribution

 for Bermudrilus peniatus Erséus, 1979

Bermuda and Gulf of Mexico [details]

 Distribution

 for Mexidrilus obtusus Erséus, 1992

Off North Carolina (NW Atlantic) [details]

 Distribution

 for Paraktedrilus bakeri (Kossmagk-Stephan & Erséus, 1985)

Germany and Denmark (Baltic Sea) [details]

 Distribution

 for Peosidrilus aduncus Erséus, 1992

Known only from type locality off New Jersey (Northwest Atlantic). Subtidal coarse sand, 24 m depth.  [details]

 Distribution

 for Peosidrilus dalei Erséus, 1992

Known only from type locality off Massachusetts(Northwest Atlantic). Subtidal sands, 80 m depth.  [details]

 Distribution

 for Peosidrilus riseri Erséus, 1992

Known only from type locality in Maine (Northwestern Atlantic). Intertidal coarse sand.  [details]

 Distribution

 for Pirodriloides albanensis (Erséus, 1990)

Southwestern Australia. [details]

 Etymology

 for Abyssidrilus Erséus, 1992

This genus is Abyssidrilus, referring to that most of the species are worms (drilus Greek fo worm) from the deep ... [details]

 Etymology

 for Abyssidrilus altoides Erséus, 1992

This species resembles (= -oides') A. altus (Erséus, 1980) [details]

 Etymology

 for Abyssidrilus opulentus Erséus, 1992

The species epithet opulentus is Latin for 'rich, wealthy' or 'powerful, mighty'; both meanings apply to this ... [details]

 Etymology

 for Abyssidrilus potens Erséus, 1992

Named potens (Latin for 'mighty. powerful') for its large size.  [details]

 Etymology

 for Albanidrilus Erséus, 1992

Named Albanidrilus, referring to that the type species is a 'worm' (Greek drilus) from the Albany area in Western ... [details]

 Etymology

 for Atlantidrilus hamulus Erséus, 1992

The species epithet hamulus is Latin for 'little hook' and refers to the tips of the penial setae [details]

 Etymology

 for Gianius Erséus, 1992

Named for Professor Narcisse Giani (Université P. Sabatier, Toulouse, France), who has contributed much to the ... [details]

 Etymology

 for Inermidrilus Erséus, 1992

Named lnermidrilus because the type species is a ’worm’ (drilus Greek) without penial setae (inermis Latin for ... [details]

 Etymology

 for Marionidrilus Erséus, 1992

A worm (‘drilus’ Greek) from Marion Island, the type locality of the type-species (M. inconspicuus) [details]

 Etymology

 for Mexidrilus Erséus, 1992

Named Mexidrilus, referring to that the type species is a ‘worm’ (Greek drilus) from the Gulf of Mexico. [details]

 Etymology

 for Mexidrilus obtusus Erséus, 1992

Named for its obtuse (Latin obtusus) pygidium. [details]

 Etymology

 for Milliganius Erséus, 1992

Named for Mr M. R. Milligan (Mote Marine Laboratory, Florida), who has contributed considerably to the taxonomic ... [details]

 Etymology

 for Pacifidrilus Erséus, 1992

All worms (drilus is Greek for ‘worm’) of this genus are known from the Pacific Ocean.  [details]

 Etymology

 for Paraktedrilus Erséus, 1992

This genus appears closely related to Aktedrilus; hence the name Paraktedrilus.  [details]

 Etymology

 for Pectinodrilus Erséus, 1992

The name is a combination of pecten (Latin for ‘comb’), referring to the comb-like bundles of penial setae, and ... [details]

 Etymology

 for Peosidrilus aduncus Erséus, 1992

The species is named aduncus (Latin for 'hooked, bent inwards) for the appearance of the tips of the penial setae. [details]

 Etymology

 for Peosidrilus dalei Erséus, 1992

Named for Mr Dale A. Davis (Olympia, Washington, U.S.A.), who placed the material of this species at my disposal, ... [details]

 Etymology

 for Peosidrilus riseri Erséus, 1992

Named for Professor Nathan W. Riser (Nahant, Massachusetts, U.S.A.), who kindly provided the material. [details]

 Etymology

 for Phallodriloides Erséus, 1992

Named for its resemblance (-oides Greek for ‘resembling’) to Phallodrilus s.str. Four of its ... [details]

 Etymology

 for Phallodriloides pinnulatus Erséus, 1992

The species epithet pinnulutus means 'bearing a little wing' (pinnula Latin for 'little wing'), and ... [details]

 Etymology

 for Pirodriloides Erséus, 1992

Resembling (‘-oides’ Greek) Pirodrilus [details]

 Etymology

 for Pirodrilus Erséus, 1992

The name is a combination of pirum (Latin for ‘pear’), referring to the pear-shaped, erect atria, and drilus ... [details]

 Etymology

 for Pseudospiridion Erséus, 1992

Named for the superficial resemblance between the long external penes of the type species (P. distinctus) and the ... [details]

 Etymology

 for Somalidrilus Erséus, 1992

Named Somalidrilus, referring to that the type species is a 'worm' (Greek drilus) from Somalia.  [details]

 Taxonomic remark

 for Abyssidrilus Erséus, 1992

The former subterranean species Abyssidrilus cuspis and A. subterraneus are transferred to Aberrantidrilus [details]