Caudinidae Heding, 1931 (basis of record)
Chiridota Eschscholtz, 1829 (additional source)
Chiridota laevis (O. Fabricius, 1780) (additional source)
Chiridotidae Östergren, 1898 (additional source)
Cucumaria de Blainville, 1830 (additional source)
Cucumariidae Ludwig, 1894 (additional source)
Cucumariidae Ludwig, 1894 (identification resource)
Ekmania Hansen & McKenzie, 1991 (additional source)
Eupyrgus scaber Lütken, 1857 (additional source)
Laetmogone Théel, 1879 (additional source)
Laetmogone violacea Théel, 1879 (additional source)
Laetmogonidae Ekman, 1926 (additional source)
Leptopentacta Clark, 1938 (additional source)
Molpadia Cuvier, 1817 (additional source)
Molpadia borealis Sars M, 1859 (additional source)
Molpadiidae J. Müller, 1850 (additional source)
Ocnus Forbes & Goodsir in Forbes, 1841 (additional source)
Ocnus glacialis (Ljungman, 1879) (additional source)
Ocnus lacteus (Forbes & Goodsir, 1839) (additional source)
Panningia Cherbonnier, 1958 (additional source)
Pentamera Ayres, 1852 (additional source)
Pentamera calcigera (Stimpson, 1851) (additional source)
Phyllophoridae Östergren, 1907 (identification resource)
Pseudocucumis Ludwig, 1875 accepted as Cladolabes Brandt, 1835 (additional source)
Pseudothyone Panning, 1949 (additional source)
Pseudothyone raphanus (Düben & Koren, 1846) (additional source)
Pseudothyone serrifera (Östergren, 1898) (additional source)
Thyone fusus (O.F. Müller, 1776) (additional source)
Thyone gadeana Perrier R., 1898 (additional source)
Thyone raphanus Düben & Koren, 1846 accepted as Pseudothyone raphanus (Düben & Koren, 1846) (additional source)
Thyone serrifera Östergren, 1898 accepted as Pseudothyone serrifera (Östergren, 1898) (source of synonymy)
Thyonidium Düben & Koren, 1846 (additional source)
Trachythyone auct. [non Studer, 1876] accepted as Leptopentacta Clark, 1938 (additional source)

Arctic Ocean for Chiridota laevis (O. Fabricius, 1780) 
Arctic Ocean for Ekmania barthii (Troschel, 1846) 
Arctic Ocean for Elpidia glacialis Théel, 1876 
Arctic Ocean for Eupyrgus scaber Lütken, 1857 
Arctic Ocean for Kolga hyalina Danielssen & Koren, 1879 
Arctic Ocean for Molpadia borealis Sars M, 1859 
Arctic Ocean for Myriotrochus eurycyclus Heding, 1935 
Arctic Ocean for Myriotrochus rinkii Steenstrup, 1851 
Arctic Ocean for Pentamera calcigera (Stimpson, 1851) 
Arctic Ocean for Psolus phantapus (Strussenfelt, 1765) 
Arctic Ocean for Trochoderma elegans Théel, 1877 
Atlantic Europe for Bathyplotes natans (M. Sars, 1868) 
Atlantic Europe for Kolga hyalina Danielssen & Koren, 1879 
Barents Sea for Chiridota laevis (O. Fabricius, 1780) 
Barents Sea for Ekmania barthii (Troschel, 1846) 
Barents Sea for Eupyrgus scaber Lütken, 1857 
Barents Sea for Molpadia borealis Sars M, 1859 
Barents Sea for Myriotrochus eurycyclus Heding, 1935 
Barents Sea for Ocnus glacialis (Ljungman, 1879) 
Barents Sea for Psolus phantapus (Strussenfelt, 1765) 
Bay of Biscay for Bathyplotes natans (M. Sars, 1868) 
Bay of Biscay for Chiridota laevis (O. Fabricius, 1780)  (doubtful)
Bay of Biscay for Leptosynapta inhaerens (O.F. Müller, 1776) 
Bay of Biscay for Mesothuria (Allantis) intestinalis (Ascanius, 1805) Östergren, 1896 
Bay of Biscay for Pseudothyone serrifera (Östergren, 1898) 
Bay of Biscay for Thyone gadeana Perrier R., 1898 
Bay of Cadiz for Bathyplotes natans (M. Sars, 1868) 
Bay of Cadiz for Thyone gadeana Perrier R., 1898 
Bretagne for Pseudothyone raphanus (Düben & Koren, 1846) 
British Isles for Echinocucumis hispida (Barrett, 1857) 
British Isles for Labidoplax buskii (MacIntosh, 1866) 
British Isles for Leptosynapta inhaerens (O.F. Müller, 1776) 
British Isles for Mesothuria (Allantis) intestinalis (Ascanius, 1805) Östergren, 1896 
British Isles for Psolus phantapus (Strussenfelt, 1765) 
British Isles for Thyone fusus (O.F. Müller, 1776) 
British Isles for Thyonidium drummondii (Thompson, 1840) 
Danish Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
Danish Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
Faeroe Exclusive Economic Zone for Acanthotrochus mirabilis Danielssen & Koren, 1881 
Faeroe Exclusive Economic Zone for Bathyplotes natans (M. Sars, 1868) 
Faeroe Exclusive Economic Zone for Chiridota laevis (O. Fabricius, 1780) 
Faeroe Exclusive Economic Zone for Echinocucumis hispida (Barrett, 1857) 
Faeroe Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
Faeroe Exclusive Economic Zone for Irpa abyssicola Danielssen & Koren, 1879 
Faeroe Exclusive Economic Zone for Labidoplax buskii (MacIntosh, 1866) 
Faeroe Exclusive Economic Zone for Laetmogone violacea Théel, 1879 
Faeroe Exclusive Economic Zone for Leptosynapta inhaerens (O.F. Müller, 1776) 
Faeroe Exclusive Economic Zone for Mesothuria (Allantis) intestinalis (Ascanius, 1805) Östergren, 1896 
Faeroe Exclusive Economic Zone for Molpadia borealis Sars M, 1859 
Faeroe Exclusive Economic Zone for Myriotrochus vitreus (M. Sars, 1872) 
Faeroe Exclusive Economic Zone for Pseudothyone serrifera (Östergren, 1898) 
Faeroe Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
Faeroe Exclusive Economic Zone for Psolus squamatus (O.F. Müller, 1776) 
Faeroe Exclusive Economic Zone for Stichopus tremulus (Gunnerus) 
Faeroe Exclusive Economic Zone for Thyone fusus (O.F. Müller, 1776) 
Faeroe Exclusive Economic Zone for Thyonidium drummondii (Thompson, 1840) 
Faeroe Exclusive Economic Zone for Trochoderma elegans Théel, 1877 
French Exclusive Economic Zone [Atlantic part] for Echinocucumis hispida (Barrett, 1857) 
French Exclusive Economic Zone [Atlantic part] for Labidoplax buskii (MacIntosh, 1866) 
French Exclusive Economic Zone [Atlantic part] for Leptosynapta inhaerens (O.F. Müller, 1776) 
German Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
German Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
Greenlandic Exclusive Economic Zone for Chiridota laevis (O. Fabricius, 1780) 
Greenlandic Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
Greenlandic Exclusive Economic Zone for Elpidia glacialis Théel, 1876 
Greenlandic Exclusive Economic Zone for Eupyrgus scaber Lütken, 1857 
Greenlandic Exclusive Economic Zone for Kolga hyalina Danielssen & Koren, 1879 
Greenlandic Exclusive Economic Zone for Molpadia borealis Sars M, 1859 
Greenlandic Exclusive Economic Zone for Myriotrochus eurycyclus Heding, 1935 
Greenlandic Exclusive Economic Zone for Myriotrochus rinkii Steenstrup, 1851 
Greenlandic Exclusive Economic Zone for Pentamera calcigera (Stimpson, 1851) 
Greenlandic Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
Greenlandic Exclusive Economic Zone for Trochoderma elegans Théel, 1877 
Icelandic Exclusive Economic Zone for Chiridota laevis (O. Fabricius, 1780) 
Icelandic Exclusive Economic Zone for Echinocucumis hispida (Barrett, 1857) 
Icelandic Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
Icelandic Exclusive Economic Zone for Elpidia glacialis Théel, 1876 
Icelandic Exclusive Economic Zone for Labidoplax buskii (MacIntosh, 1866)  (doubtful)
Icelandic Exclusive Economic Zone for Laetmogone violacea Théel, 1879 
Icelandic Exclusive Economic Zone for Mesothuria (Allantis) intestinalis (Ascanius, 1805) Östergren, 1896 
Icelandic Exclusive Economic Zone for Molpadia borealis Sars M, 1859 
Icelandic Exclusive Economic Zone for Ocnus lacteus (Forbes & Goodsir, 1839) 
Icelandic Exclusive Economic Zone for Pseudothyone raphanus (Düben & Koren, 1846) 
Icelandic Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
Icelandic Exclusive Economic Zone for Psolus squamatus (O.F. Müller, 1776) 
Icelandic Exclusive Economic Zone for Stichopus tremulus (Gunnerus) 
Icelandic Exclusive Economic Zone for Thyone fusus (O.F. Müller, 1776) 
Irish Exclusive economic Zone for Ocnus lacteus (Forbes & Goodsir, 1839) 
Kattegat for Labidoplax buskii (MacIntosh, 1866) 
Kattegat for Leptosynapta inhaerens (O.F. Müller, 1776) 
Kattegat for Stichopus tremulus (Gunnerus) 
Mediterranean Sea for Labidoplax buskii (MacIntosh, 1866) 
Mediterranean Sea for Leptosynapta inhaerens (O.F. Müller, 1776) 
Mediterranean Sea for Mesothuria (Allantis) intestinalis (Ascanius, 1805) Östergren, 1896 
Mediterranean Sea for Ocnus lacteus (Forbes & Goodsir, 1839) 
Mediterranean Sea for Pseudothyone raphanus (Düben & Koren, 1846) 
North Atlantic for Acanthotrochus mirabilis Danielssen & Koren, 1881 
North Atlantic for Myriotrochus theeli Östergren, 1905 
North East Atlantic for Kolga hyalina Danielssen & Koren, 1879 
North East Atlantic for Laetmogone violacea Théel, 1879 

 Authority

 for Myriotrochus vitreus (M. Sars, 1872)

Madsen & Hansen (1994) refer to (Sars, 1866) as species authority source. [details]

 Authority

 for Ocnus glacialis (Ljungman, 1879)

(Ljungman, 1880) [details]

 Authority

 for Thyone gadeana Perrier R., 1898

R. Perrier, 1902 [details]

 Classification

 for Holothuria hyndmani Thompson, 1840

Madsen & Hansen (1994) prefer to keep hyndmani under Cucumaria Blainville, 1830. [details]

 Identification

 for Holothuria minuta Fabricius, 1780

Some misidentifications occurred. Siberian specimens of Holothuria minuta are referable to Ocnus glacialis. ... [details]

 Spelling

 for Labidoplax buskii (MacIntosh, 1866)

Madsen & Hansen (1994) use L. buski as spelling form [details]

 Spelling

 for Myriotrochus rinkii Steenstrup, 1851

Madsen & Hansen (1994) use M. rinki as spelling form. Type locality = SW Greenland [details]

 Synonymy

 for Leptopentacta elongata (Düben & Koren, 1846)

Synonymised with Trachythyone elongata (Düben & Koren, 1846) [details]

 Synonymy

 for Panningia hyndmanni (W. Thompson, 1840)

Madsen & Hansen (1994) are using the genus name Cucumaria for this species. The reason to keep hyndmani under ... [details]

 Synonymy

 for Stichopus tremulus (Gunnerus)

Madsen & Hansen (1994) regard Parastichopus H.L. Clark, 1922 as a synonym of Stichopus. [details]

 Taxonomy

 for Dactylochirotida

Pawson & Fell (1965) subdivided the order Dendrochirota into the new order Dactylochirotida and the Dendrochirotida ... [details]

 Taxonomy

 for Laetmogone Théel, 1879

Family Molpadiidae restricted by Heding, 1931 [details]

 Taxonomy

 for Ocnus brunneus (Forbes in Thompson, 1840)

The taxonomic status of O. brunneus is uncertain, due to geographical and intra-specific variation in body colour, ... [details]

 Taxonomy

 for Pseudothyone serrifera (Östergren, 1898)

The species is here transferred from Thyone to Pseudothyone since Panning (1949) restricted Thyone to species with ... [details]

 Taxonomy

 for Psolus valvatus Östergren, 1904

Synonymy established by Ekman (1923). [details]

 Taxonomy

 for Thyone cherbonnieri Reys, 1959

Reys (1959) referred the specimens identified as T. gadeana by Madsen to a new species T. cherbonnieri on the basis ... [details]

 Taxonomy

 for Thyone fusus (O.F. Müller, 1776)

Madsen (1941) referred the Mediterranean specimens of Tyone fusus to a new subspecies T. fusus mediterranea. [details]

 Taxonomy

 for Thyonidium hyalinum (Forbes, 1841)

T. hyalinum(Forbes) was re-established by Hansen & McKenzie (1991) after T. pellucidum sensu Düben & Koren was not ... [details]

 Type species

 for Pentamera calcigera (Stimpson, 1851)

probably lost or not kept [details]

 Type specimen

 for Thyone flexus Hodge, 1865

This species is known only from the description of the now lost type specimen taken off Northumberland. T. flexus ... [details]

 Validity

 for Molpadia borealis arctica von Marenzeller, 1877

considered as a valid subspecies by Madsen & Hansen (1994) [details]