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Name

Erséus, C. (1984). Taxonomy and phylogeny of the gutless Phallodrilinae (Oligochaeta,Tubificidae), with descriptions of one new genus and twenty-two new species. Zoologica Scripta, 13(4): 239-272

SourceID

395199

Authors

Erséus, C.

Year

1984

Title

Taxonomy and phylogeny of the gutless Phallodrilinae (Oligochaeta,Tubificidae), with descriptions of one new genus and twenty-two new species

Journal

Zoologica Scripta

Suffix

13(4): 239-272

Type

Publication

Full text

Available for editors

Abstract

The gutless members of the subfamily Phallodrilinae are taxonomically revised and generically split off from their gut-bearing relatives. Inanidrilus Erséus, 1979, a much modified definition of which is presented, comprises the species leukodermatus (Giere, 1979) comb.n., speroi sp.n., fijiensis sp.n., bonomii sp.n., carterensis sp.n., gustavsoni sp.n., wasseri sp.n., scalprum sp.n., belizensis sp.n., aduncosetis sp.n., vacivus sp.n., triangulatus sp.n., ernesti sp.n., manae sp.n., falcifer Erséus & Baker, 1982, renaudae sp.n., extrmus (Erséus 1979) comb.n., mexicanus Erséus & Haker, 1982, and bulbosus Erséus, 1979. Olavius sp.n. is established to accommodate the species geniculatus (Erséus, 1981) comb.n., imperfectus sp.n., filithecatus (Erséus. 1981) comb.n. albidus (Jamieson, 1977) comb.n., propinquus sp.n., comorensis (Erséus. 1981) comb.n., cornuatus Davis, 1984, pellucidus sp.n., tenuissimus (Erséus, 1979) macer sp.n., caudatus (Erséus. 1979) comb.n., planus (Erséus, 1979) comb.n., clavatus (Erséus. 1981) comb.n., tantulus sp.n., longissimus (Giere, 1979) comb.n., alius sp.n., avisceralis (Erséus, 1981) comb.n., loisae sp.n., and hanssoni sp.n., Two subgenera are erected for tantulus—longissimus–alius (nominate subgenus Olavius) and avisceralis-loisae-hanssoni (Coralliodriloides subgen.n.), respectively. A tentative phylogeny of the gutless group, which appears monophyletic, is inferred on the basis of a partly computerized Wagner-tree analysis of all 38 species. According to this analysis. According to this analysis, Inanidrilus can be defined by one synapomorphy, more or less sickle-shaped penial setae, whereas Olavius can be discriminated by two such characters, (1) atrium comma-shaped/horizontal rather than erect and (2) copulatory sacs present.

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Taxa (1)
Notes (70)

Olavius Erséus, 1984 (original description)

Depth range

for Inanidrilus aduncosetis Erséus, 1984

Subtidal coarse coral sand, 8 m. [details]

Depth range

for Inanidrilus belizensis Erséus, 1984

Subtidal coral sand, 1-8 m [details]

Depth range

for Inanidrilus bonomii Erséus, 1984

Subtidal fine sand. 7 m [details]

Depth range

for Inanidrilus bulbosus Erséus, 1979

Subtidal sand. 2-2.5 m [details]

Depth range

for Inanidrilus carterensis Erséus, 1984

Subtidal coral sand, 6 m [details]

Depth range

for Inanidrilus ernesti Erséus, 1984

Subtidal coarse sand, 10 m [details]

Depth range

for Inanidrilus leukodermatus (Giere, 1979)

0-8 m [details]

Depth range

for Inanidrilus manae Erséus, 1984

Subtidal coral sands, 0.1-0.7 m [details]

Depth range

for Inanidrilus mexicanus Erséus & Baker, 1982

Subtidal fine sand, 26 m [details]

Depth range

for Inanidrilus scalprum Erséus, 1984

Subtidal coral sand, about 1 m [details]

Depth range

for Inanidrilus speroi Erséus, 1984

1-14m [details]

Depth range

for Inanidrilus triangulatus Erséus, 1984

Subtidal fine coral sand, 6 m [details]

Depth range

for Inanidrilus vacivus Erséus, 1984

Subtidal, about 10 m. [details]

Depth range

for Inanidrilus wasseri Erséus, 1984

Subtidal sands, 0.5-6 m [details]

Depth range

for Olavius (Coralliodriloides) avisceralis (Erséus, 1981)

Subtidal fine sand. about 0.5 m [details]

Depth range

for Olavius (Coralliodriloides) hanssoni Erséus, 1984

Subtidal sand, 1-2 m [details]

Depth range

for Olavius (Coralliodriloides) loisae Erséus, 1984

Subtidal coarse coral sand, 6 m. [details]

Depth range

for Olavius albidus (Jamieson, 1977)

Intertidal and subtidal sands, 0-1.2 m [details]

Depth range

for Olavius alius Erséus, 1984

Subtidal sands. 2-9 m. [details]

Depth range

for Olavius clavatus (Erséus, 1981)

subtidal sands, 5-14m [details]

Depth range

for Olavius comorensis (Erséus, 1981)

Subtidal fine sand, 32-38 m [details]

Depth range

for Olavius cornuatus Davis, 1984

Subtidal coarse sand, 58-138 m [details]

Depth range

for Olavius filithecatus (Erséus, 1981)

Subtidal fine to medium sand, 12-24 m. [details]

Depth range

for Olavius geniculatus (Erséus, 1981)

Intertidal and subtidal sand, 0-24 m [details]

Depth range

for Olavius imperfectus Erséus, 1984

Subtidal coral sand, 8m. [details]

Depth range

for Olavius longissimus (Giere, 1979)

Intertidal and subtidal calcareous sands, 0-2m [details]

Depth range

for Olavius pellucidus Erséus, 1984

Subtidal fine sand. 2-9 m [details]

Depth range

for Olavius planus (Erséus, 1979)

subtidal sands, 3-15m [details]

Depth range

for Olavius propinquus Erséus, 1984

Subtidal sand, 0.3-3 m. [details]

Depth range

for Olavius tantulus Erséus, 1984

Subtidal coral sand, about 1 m. [details]

Depth range

for Olavius tenuissimus (Erséus, 1979)

Subtidal sands. 0.5-91 m. [details]

Dispersal

for Inanidrilus leukodermatus (Giere, 1979)

Bermuda and Belize (NW Atlantic) [details]

Distribution

for Inanidrilus bonomii Erséus, 1984

only known from the Messina strait in the Italian meditteranean [details]

Distribution

for Inanidrilus bulbosus Erséus, 1979

SE Florida (NW Atlantic) [details]

Distribution

for Inanidrilus carterensis Erséus, 1984

Northern part of the Great Barrier Reef (SW Pacific). [details]

Distribution

for Inanidrilus ernesti Erséus, 1984

E coast of Florida (NW Atlantic) [details]

Distribution

for Inanidrilus fijiensis Erséus, 1984

Fiji and Solomon Islands (SW Pacific) [details]

Distribution

for Inanidrilus manae Erséus, 1984

Fiji (SW Pacific) [details]

Distribution

for Inanidrilus mexicanus Erséus & Baker, 1982

W coast of Florida [details]

Distribution

for Inanidrilus renaudae Erséus, 1984

Guadeloupe (NW Atlantic) [details]

Distribution

for Inanidrilus speroi Erséus, 1984

Barbados [details]

Distribution

for Inanidrilus triangulatus Erséus, 1984

SE Florida (NW Atlantic) [details]

Distribution

for Inanidrilus vacivus Erséus, 1984

E coast of Florida (NW Atlantic) [details]

Distribution

for Inanidrilus wasseri Erséus, 1984

Northern part of the Great Barrier Reef (SW Pacific) [details]

Distribution

for Olavius albidus (Jamieson, 1977)

Southern part of the Great Barrier Reef (SW Pacific) [details]

Distribution

for Olavius comorensis (Erséus, 1981)

Comoro Islands (W Indian Ocean). [details]

Distribution

for Olavius cornuatus Davis, 1984

Off Massachusetts (NW Atlantic). [details]

Distribution

for Olavius filithecatus (Erséus, 1981)

Great Barrier Reef (SW Pacific) [details]

Distribution

for Olavius pellucidus Erséus, 1984

Barbados and Guadeloupe (NW Atlantic) [details]

Distribution

for Olavius propinquus Erséus, 1984

Fiji (SW Pacific). [details]

Distribution

for Olavius tenuissimus (Erséus, 1979)

Off Massachusetts (D. Davis, pers. commun.), New Jersey. North Carolina. E and W coasts of Florida, Bermuda. Belize ... [details]

Ecology

for Inanidrilus leukodermatus (Giere, 1979)

Poorly oxygenated intertidal and subtidal carbonate sands [details]

Ecology

for Inanidrilus speroi Erséus, 1984

Subtidal carbonate sands [details]

Etymology

for Inanidrilus bonomii Erséus, 1984

Named for Dr G. Bonomi (CNK Istituto Italiano di Idrobiologia, Pallanza. Italy). who arranged and participated ... [details]

Etymology

for Inanidrilus carterensis Erséus, 1984

Derived from the type locality, Carter Island in Great Barrier reef [details]

Etymology

for Inanidrilus ernesti Erséus, 1984

The species is named for Mr R.G. Ernest (Applied Biology, Inc., Jensen Beach, Florida) [details]

Etymology

for Inanidrilus fijiensis Erséus, 1984

derived from the type locality, Fiji [details]

Etymology

for Inanidrilus renaudae Erséus, 1984

Named for Dr Jeanne Renaud-Mornant (MNHN, Paris), who collected the material and made it available to me. [details]

Etymology

for Inanidrilus speroi Erséus, 1984

This species is named for Dr H. Spero, who collected the sediment at the type locality and several other valuable ... [details]

Etymology

for Inanidrilus triangulatus Erséus, 1984

This species is provided with 'triangular' atria; hence the name triangulatus. [details]

Etymology

for Inanidrilus vacivus Erséus, 1984

The species epithet (vacivus, Latin for 'empty') alludes to the fact that this is a gutless tubificid [details]

Etymology

for Inanidrilus wasseri Erséus, 1984

This species is named for Mr Robert Wasser, former maintenance officer at Lizard Island Research Station [details]

Etymology

for Olavius Erséus, 1984

Named for Dr Olav Giere (Hamburg Universitat, Hamburg, F.R.G.), who described the type species and has, together ... [details]

Etymology

for Olavius (Coralliodriloides) Erséus, 1984

Resembling (‘-oides’ Greek) Coralliodrilus Erseus. 1979; prostate glands are absent also in the latter genus. [details]

Etymology

for Olavius (Coralliodriloides) hanssoni Erséus, 1984

Named for Mr B. Hansson (Honiara, Solomon Islands), who collected the material. [details]

Etymology

for Olavius (Coralliodriloides) loisae Erséus, 1984

Named for Mrs Lois Goldman, secretary at Lizard Island Research Station, who assisted most valuably during my work ... [details]

Etymology

for Olavius alius Erséus, 1984

This species was long identified as longissirnus by the present author, but was finally regarded as ... [details]

Etymology

for Olavius pellucidus Erséus, 1984

Living specimens are more or less transparent (=‘pellucidus’ Latin); hence the name. [details]

Etymology

for Olavius propinquus Erséus, 1984

This species is called propinquus (Latin for ‘related’) as it is indeed closely related to O. albidus [details]

Etymology

for Olavius tantulus Erséus, 1984

Tantulus, Latin ‘so little’, ‘so small‘. [details]

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