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)
Cucumaria communis Forbes & Goodsir in Forbes, 1841 accepted as Thyonidium drummondii (Thompson, 1840) (additional source)
Cucumaria elongata Düben & Koren, 1846 accepted as Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846) (additional source)
Cucumaria frondosa (Gunnerus, 1767) (additional source)
Cucumaria glacialis Ljungman, 1879 accepted as Ocnus glacialis (Ljungman, 1879) (additional source)
Cucumaria hyndmanni (Wyville Thompson, 1840) accepted as Panningia hyndmanni (W. Thompson, 1840) accepted as Panningia hyndmani (Thompson, 1840) (additional source)
Cucumaria lactea (Forbes, 1839) accepted as Ocnus lacteus (Forbes & Goodsir, 1839) (basis of record)
Cucumaria lactea (Forbes, 1839) accepted as Ocnus lacteus (Forbes & Goodsir, 1839) (source of synonymy)
Cucumaria mosterensis Grieg, 1889 accepted as Ocnus lacteus (Forbes & Goodsir, 1839) (additional source)
Cucumaria pentactes of Forbes, 1841 non (Linnaeus, 1767) accepted as Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846) (additional source)
Cucumariidae Ludwig, 1894 (identification resource)
Cucumariidae Ludwig, 1894 (additional source)
Echinocucumis typica M. Sars, 1859 accepted as Echinocucumis hispida (Barrett, 1857) (additional source)
Ekmania Hansen & McKenzie, 1991 (additional source)
Eupyrgus scaber Lütken, 1857 (additional source)
Holothuria drummondii Thompson, 1840 accepted as Thyonidium drummondii (Thompson, 1840) (additional source)
Holothuria frondosa Gunnerus, 1767 accepted as Cucumaria frondosa (Gunnerus, 1767) (additional source)
Holothuria fusus O.F. Müller, 1776 accepted as Thyone fusus (O.F. Müller, 1776) (additional source)
Holothuria hyndmani Thompson, 1840 accepted as Panningia hyndmanni (W. Thompson, 1840) accepted as Panningia hyndmani (Thompson, 1840) (basis of record)
Holothuria hyndmani Thompson, 1840 accepted as Panningia hyndmanni (W. Thompson, 1840) accepted as Panningia hyndmani (Thompson, 1840) (source of synonymy)
Holothuria lactea Forbes & Goodsir, 1839 accepted as Ocnus lacteus (Forbes & Goodsir, 1839) (additional source)
Holothurioidea accepted as Holothuroidea (basis of record)
Laetmogone Théel, 1879 (additional source)
Laetmogone violacea Théel, 1879 (additional source)
Laetmogonidae Ekman, 1926 (additional source)
Leptopentacta Clark, 1938 (additional source)
Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846) (additional source)
Molpadia Cuvier, 1817 (additional source)
Molpadia borealis Sars M, 1859 (additional source)
Molpadiidae J. Müller, 1850 (additional source)
Neopentadactyla Deichmann, 1944 (additional source)
Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 (additional source)
Ocnus Forbes & Goodsir in Forbes, 1841 (additional source)
Ocnus brunneus (Forbes in Thompson, 1840) (additional source)
Ocnus glacialis (Ljungman, 1879) (additional source)
Ocnus lacteus (Forbes & Goodsir, 1839) (additional source)
Ocnus planci (Brandt, 1835) (additional source)
Orcula Troschel, 1846 accepted as Ekmania Hansen & McKenzie, 1991 (additional source)
Orcula barthii Troschel, 1846 accepted as Ekmania barthii (Troschel, 1846) (additional source)
Panningia Cherbonnier, 1958 (additional source)
Panningia curvata Cherbonnier, 1958 (basis of record)
Pentacta calcigera Stimpson, 1851 accepted as Pentamera calcigera (Stimpson, 1851) (additional source)
Pentamera Ayres, 1852 (additional source)
Pentamera calcigera (Stimpson, 1851) (additional source)
Pentamera pulcherrima Ayres, 1852 (basis of record)
Phyllophoridae Östergren, 1907 (identification resource)
Pseudocucumis Ludwig, 1875 accepted as Cladolabes Brandt, 1835 (additional source)
Pseudocucumis mixta Östergren, 1898 accepted as Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 (additional source)
Pseudothyone Panning, 1949 (additional source)
Pseudothyone raphanus (Düben & Koren, 1846) (additional source)
Pseudothyone serrifera (Östergren, 1898) (additional source)
Thyone cherbonnieri Reys, 1959 (additional source)
Thyone flexus Hodge, 1865 accepted as Thyone fusus (O.F. Müller, 1776) (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)
Thyone subvillosa Hérouard, 1889 accepted as Thyone fusus (O.F. Müller, 1776) (additional source)
Thyone wahrbergi Madsen, 1941 accepted as Thyone gadeana Perrier R., 1898 (additional source)
Thyonidium Düben & Koren, 1846 (additional source)
Thyonidium hyalinum (Forbes, 1841) (additional source)
Thyonidium pellucidum Düben & Koren, 1846, non Vahl, 1808 accepted as Ekmania barthii (Troschel, 1846) (additional source)
Trachythyone auct. [non Studer, 1876] accepted as Leptopentacta Clark, 1938 (additional source)
Trachythyone elongata (Düben & Koren, 1846) accepted as Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846) (basis of record)
Trachythyone muricata Studer, 1876 (basis of record)

Africa for Leptosynapta minuta (Becher, 1906) 
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 Cucumaria frondosa (Gunnerus, 1767) 
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 Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 
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 cherbonnieri Reys, 1959 
Bay of Cadiz for Thyone gadeana Perrier R., 1898 
Belgian Exclusive Economic Zone for Ocnus planci (Brandt, 1835) 
Bretagne for Pseudothyone raphanus (Düben & Koren, 1846) 
British Isles for Echinocucumis hispida (Barrett, 1857) 
British Isles for Labidoplax buskii (MacIntosh, 1866) 
British Isles for Labidoplax digitata (Montagu, 1815) 
British Isles for Leptosynapta bergensis (Östergren, 1905) 
British Isles for Leptosynapta inhaerens (O.F. Müller, 1776) 
British Isles for Leptosynapta minuta (Becher, 1906) 
British Isles for Mesothuria (Allantis) intestinalis (Ascanius, 1805) Östergren, 1896 
British Isles for Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 
British Isles for Psolus phantapus (Strussenfelt, 1765) 
British Isles for Thyone fusus (O.F. Müller, 1776) 
British Isles for Thyonidium drummondii (Thompson, 1840) 
British Isles for Thyonidium hyalinum (Forbes, 1841) 
Danish Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
Danish Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
English Channel for Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 
English Channel for Rhabdomolgus ruber Keferstein, 1862 
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 bergensis (Östergren, 1905) 
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 Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 
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, 1767) 
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 Cucumaria hyndmanni (Wyville Thompson, 1840) 
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 bergensis (Östergren, 1905) 
French Exclusive Economic Zone [Atlantic part] for Leptosynapta inhaerens (O.F. Müller, 1776) 
French Exclusive Economic Zone [Atlantic part] for Neopentadactyla mixta (Östergren, 1898) Deichmann, 1944 
Galicia for Leptosynapta minuta (Becher, 1906) 
German Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 
German Exclusive Economic Zone for Leptosynapta bergensis (Östergren, 1905) 
German Exclusive Economic Zone for Psolus phantapus (Strussenfelt, 1765) 
Greenlandic Exclusive Economic Zone for Chiridota laevis (O. Fabricius, 1780) 
Greenlandic Exclusive Economic Zone for Cucumaria frondosa (Gunnerus, 1767) 
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 Holothuria minuta Fabricius, 1780  (doubtful)
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 
Helgoland for Leptosynapta minuta (Becher, 1906) 
Helgoland for Rhabdomolgus ruber Keferstein, 1862 
Icelandic Exclusive Economic Zone for Chiridota laevis (O. Fabricius, 1780) 
Icelandic Exclusive Economic Zone for Cucumaria frondosa (Gunnerus, 1767) 
Icelandic Exclusive Economic Zone for Echinocucumis hispida (Barrett, 1857) 
Icelandic Exclusive Economic Zone for Ekmania barthii (Troschel, 1846) 

 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, 1767)

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]