treatments-xml/data/4E/AF/82/4EAF8230AF8B529E8962EB5441589374.xml

<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1113.82172" ID-Pensoft-Pub="1313-2970-1113-1" ID-Pensoft-UUID="EB46BF265F2E51B3A83799886C5F084A" ModsDocID="1313-2970-1113-1" checkinTime="1658252710949" checkinUser="pensoft" docAuthor="Bribiesca-Contreras, Guadalupe, Dahlgren, Thomas G., Amon, Diva J., Cairns, Stephen, Drennan, Regan, Durden, Jennifer M., Eleaume, Marc P., Hosie, Andrew M., Kremenetskaia, Antonina, McQuaid, Kirsty, O'Hara, Timothy D., Rabone, Muriel, Simon-Lledo, Erik, Smith, Craig R., Watling, Les, Wiklund, Helena &amp; Glover, Adrian G." docDate="2022" docId="4EAF8230AF8B529E8962EB5441589374" docLanguage="en" docName="ZooKeys 1113: 1-110" docOrigin="ZooKeys 1113" docPubDate="2022-07-18" docSource="http://dx.doi.org/10.3897/zookeys.1113.82172" docTitle="Laetmogone wyvillethomsoni Theel 1979" docType="treatment" docVersion="1" id="EB46BF265F2E51B3A83799886C5F084A" lastPageNumber="1" masterDocId="EB46BF265F2E51B3A83799886C5F084A" masterDocTitle="Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean" masterLastPageNumber="110" masterPageNumber="1" pageNumber="1" updateTime="1658253014331" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Bribiesca-Contreras, Guadalupe</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8163-8724</mods:nameIdentifier>
<mods:affiliation>Life Sciences Department, Natural History Museum, London, UK</mods:affiliation>
<mods:nameIdentifier type="email">l.bribiesca-contreras@nhm.ac.uk</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Dahlgren, Thomas G.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-6854-2031</mods:nameIdentifier>
<mods:affiliation>Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden &amp; Norwegian Research Centre, NORCE, Bergen, Norway</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Amon, Diva J.</mods:namePart>
<mods:affiliation>SpeSeas, D'Abadie, Trinidad and Tobago</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Cairns, Stephen</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-7209-9271</mods:nameIdentifier>
<mods:affiliation>Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, D. C., USA</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Drennan, Regan</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-0137-5464</mods:nameIdentifier>
<mods:affiliation>National Oceanography Centre, Southampton, UK</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Durden, Jennifer M.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6529-9109</mods:nameIdentifier>
<mods:affiliation>UMR ISYEB, Department Origines et Evolution, Museum national d'Histoire Naturelle, Paris, France</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Eleaume, Marc P.</mods:namePart>
<mods:affiliation>Collections &amp; Research, Western Australia Museum, Perth, Australia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Hosie, Andrew M.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-5683-662X</mods:nameIdentifier>
<mods:affiliation>Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kremenetskaia, Antonina</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8851-3318</mods:nameIdentifier>
<mods:affiliation>School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>McQuaid, Kirsty</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-0395-8332</mods:nameIdentifier>
<mods:affiliation>Museums Victoria, Melbourne, Australia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>O'Hara, Timothy D.</mods:namePart>
<mods:affiliation>Department of Oceanography, University of Hawai'i at Manoa, Honolulu, USA</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Rabone, Muriel</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8351-2313</mods:nameIdentifier>
<mods:affiliation>National Oceanography Centre, Southampton, UK</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Simon-Lledo, Erik</mods:namePart>
<mods:affiliation>UMR ISYEB, Department Origines et Evolution, Museum national d'Histoire Naturelle, Paris, France</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Smith, Craig R.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-3976-0889</mods:nameIdentifier>
<mods:affiliation>School of Life Sciences, University of Hawai'i at Manoa, Honolulu, USA</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Watling, Les</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6901-1168</mods:nameIdentifier>
<mods:affiliation>School of Life Sciences, University of Hawai'i at Manoa, Honolulu, USA</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wiklund, Helena</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8252-3504</mods:nameIdentifier>
<mods:affiliation>Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Glover, Adrian G.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-9489-074X</mods:nameIdentifier>
<mods:affiliation>National Oceanography Centre, Southampton, UK</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2022</mods:date>
<mods:detail type="pubDate">
<mods:number>2022-07-18</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>1113</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>110</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.1113.82172</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1113.82172</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-1113-1</mods:identifier>
<mods:identifier type="Pensoft-UUID">EB46BF265F2E51B3A83799886C5F084A</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:plazi:treatment:4EAF8230AF8B529E8962EB5441589374" httpUri="http://treatment.plazi.org/id/4EAF8230AF8B529E8962EB5441589374" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="4EAF8230-AF8B-529E-8962-EB5441589374" authority="Theel, 1979" authorityName="Theel" authorityYear="1979" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laetmogone wyvillethomsoni" order="Actinopoda" pageId="0" pageNumber="1" phylum="Echinodermata" rank="species" species="wyvillethomsoni">
Laetmogone cf. wyvillethomsoni 
<normalizedToken originalValue="Théel">Theel</normalizedToken>
, 1979
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">
<figureCitation captionStart="Figure 49" captionStartId="F49" captionText="Figure 49. Laetmogone cf. wyvillethomsoni Theel, 1979. Specimen CCZ _ 062 A in situ image; B dorsal view of specimen before preservation C ventral view D dorsal calcareous ossicles. Scale bars: 2 cm (A); 1 cm (B, C); 50 μm (D). Image attribution: Durden and Smith (A); Wiklund, Durden, Drennan, and McQuaid (B, C); Bribiesca-Contreras (D)." figureDoi="10.3897/zookeys.1113.82172.figure49" httpUri="https://binary.pensoft.net/fig/716375" pageId="0" pageNumber="1">Fig. 49</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<materialsCitation accessionNumber="ON400689, ON406641" collectingDate="2018-05-27" collectorName="Smith, Durden, GenBank, Voucher" elevation="3132" latitude="4.8877" longLatPrecision="7" longitude="-141.7569" specimenCount="1">
Clarion-Clipperton Zone • 
<specimenCount type="generic">1 specimen</specimenCount>
; APEI 7; 
<geoCoordinate degrees="4.8877" direction="north" orientation="latitude" precision="5" value="4.8877">4.8877°N</geoCoordinate>
, 
<geoCoordinate degrees="141.7569" direction="west" orientation="longitude" precision="5" value="-141.7569">141.7569°W</geoCoordinate>
; 
<quantity metricMagnitude="3" metricUnit="m" metricValue="3.132" unit="m" value="3132.0">
<elevation metricMagnitude="3" metricUnit="m" metricValue="3.132" unit="m" value="3132.0">3132 m</elevation>
</quantity>
deep; 
<collectingDate value="2018-05-27">27 May. 2018</collectingDate>
; 
<collectorName>Smith</collectorName>
&amp; 
<collectorName>Durden</collectorName>
leg.; 
<collectorName>GenBank</collectorName>
: 
<accessionNumber httpUri="http://www.ncbi.nlm.nih.gov/nucleotide/ON400689">ON400689</accessionNumber>
(COI), 
<accessionNumber httpUri="http://www.ncbi.nlm.nih.gov/nucleotide/ON406641">ON406641</accessionNumber>
(18S); NHMUK 2021.18; 
<collectorName>Voucher</collectorName>
code: CCZ_062
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Other material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<materialsCitation collectingDate="2022-01-01" collectingDateMax="2022-12-31" collectingDateMin="2022-01-01" country="Japan" elevation="1033" latitude="34.1167" location="Theel" longLatPrecision="45994" longitude="138.0" specimenCount="1" typeStatus="holotype">
Pacific Ocean • 
<specimenCount type="generic">1 specimen</specimenCount>
, 
<typeStatus>holotype</typeStatus>
of 
<taxonomicName class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laetmogone spongiosa" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="species" species="spongiosa">
<emphasis italics="true" pageId="0" pageNumber="1">Laetmogone spongiosa</emphasis>
</taxonomicName>
<normalizedToken originalValue="Théel">
<location LSID="urn:lsid:plazi:treatment:4EAF8230AF8B529E8962EB5441589374:2F3D8ACF9894C998CC549F6F3E137ECD" country="Japan" latitude="34.1167" longLatPrecision="45994" longitude="138.0" name="Theel">Theel</location>
</normalizedToken>
, 1879; south of 
<collectingCountry name="Japan">Japan</collectingCountry>
; 
<geoCoordinate degrees="34. 1167" direction="north" orientation="latitude" precision="5" value="34.1167">34. 1167°N</geoCoordinate>
, 
<geoCoordinate degrees="138" direction="east" orientation="longitude" precision="55555" value="138.0">138°E</geoCoordinate>
; 
<quantity metricMagnitude="3" metricUnit="m" metricValue="1.033" unit="m" value="1033.0">
<elevation metricMagnitude="3" metricUnit="m" metricValue="1.033" unit="m" value="1033.0">1033 m</elevation>
</quantity>
deep; Challenger Expedition, Stn. 235; NHMUK 1883.6.18.47
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">
Single specimen (Fig. 
<figureCitation captionStart="Figure 49" captionStartId="F49" captionText="Figure 49. Laetmogone cf. wyvillethomsoni Theel, 1979. Specimen CCZ _ 062 A in situ image; B dorsal view of specimen before preservation C ventral view D dorsal calcareous ossicles. Scale bars: 2 cm (A); 1 cm (B, C); 50 μm (D). Image attribution: Durden and Smith (A); Wiklund, Durden, Drennan, and McQuaid (B, C); Bribiesca-Contreras (D)." figureDoi="10.3897/zookeys.1113.82172.figure49" httpUri="https://binary.pensoft.net/fig/716375" pageId="0" pageNumber="1">49A</figureCitation>
). Body cylindrical, ~ 3 
<normalizedToken originalValue="×">x</normalizedToken>
as long as wide (L = 15.6 cm, W = 5.2 cm), with convex dorsal surface and somewhat flattened ventral surface, tapering posteriorly; mouth anterior, subventral, terminal; anus posterior, terminal, slightly dorsal; violet colouration in live and preserved specimen, with darker ventral surface (Fig. 
<figureCitation captionStart="Figure 49" captionStartId="F49" captionText="Figure 49. Laetmogone cf. wyvillethomsoni Theel, 1979. Specimen CCZ _ 062 A in situ image; B dorsal view of specimen before preservation C ventral view D dorsal calcareous ossicles. Scale bars: 2 cm (A); 1 cm (B, C); 50 μm (D). Image attribution: Durden and Smith (A); Wiklund, Durden, Drennan, and McQuaid (B, C); Bribiesca-Contreras (D)." figureDoi="10.3897/zookeys.1113.82172.figure49" httpUri="https://binary.pensoft.net/fig/716375" pageId="0" pageNumber="1">49A-C</figureCitation>
). Tentacles 15, of almost equal size, and very dark at the tips. Odd ambulacrum is naked; 27 or 28 tube feet arranged in a single row on each of the paired ventral ambulacra, forming a continuous line on the anterior ⅔ of the body and scattered posteriorly, also decreasing in size (Fig. 
<figureCitation captionStart="Figure 49" captionStartId="F49" captionText="Figure 49. Laetmogone cf. wyvillethomsoni Theel, 1979. Specimen CCZ _ 062 A in situ image; B dorsal view of specimen before preservation C ventral view D dorsal calcareous ossicles. Scale bars: 2 cm (A); 1 cm (B, C); 50 μm (D). Image attribution: Durden and Smith (A); Wiklund, Durden, Drennan, and McQuaid (B, C); Bribiesca-Contreras (D)." figureDoi="10.3897/zookeys.1113.82172.figure49" httpUri="https://binary.pensoft.net/fig/716375" pageId="0" pageNumber="1">49C</figureCitation>
). Each paired dorsal ambulacrum with a single row of long processes, 12 on the left and 13 on the right; longest processes longer than ⅓ of the body length. Twenty pedicels along each side of the ventral surface, posterior pairs smaller than the others. Fourteen processes of the bivium along the left ambulacra and thirteen along the right. Tegument is thick, completely covered by calcareous ossicles. Dorsal ossicles are wheel-like of various sizes (40-226 
<normalizedToken originalValue="μm">μm</normalizedToken>
in diameter), with four or five studs, mostly five, on primary central crosses, and with 8-17 spokes, mostly eight on large wheels; ossicle is convex, rim smooth, interspoke areas small, and large central area on large wheels (Fig. 
<figureCitation captionStart="Figure 49" captionStartId="F49" captionText="Figure 49. Laetmogone cf. wyvillethomsoni Theel, 1979. Specimen CCZ _ 062 A in situ image; B dorsal view of specimen before preservation C ventral view D dorsal calcareous ossicles. Scale bars: 2 cm (A); 1 cm (B, C); 50 μm (D). Image attribution: Durden and Smith (A); Wiklund, Durden, Drennan, and McQuaid (B, C); Bribiesca-Contreras (D)." figureDoi="10.3897/zookeys.1113.82172.figure49" httpUri="https://binary.pensoft.net/fig/716375" pageId="0" pageNumber="1">49D</figureCitation>
).
</paragraph>
<caption doi="10.3897/zookeys.1113.82172.figure49" httpUri="https://binary.pensoft.net/fig/716375" pageId="0" pageNumber="1" start="Figure 49" startId="F49">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 49.</emphasis>
<taxonomicName authorityName="Theel" authorityYear="1979" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laetmogone wyvillethomsoni" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="species" species="wyvillethomsoni">Laetmogone cf. wyvillethomsoni</taxonomicName>
<normalizedToken originalValue="Théel">Theel</normalizedToken>
, 1979. Specimen CCZ_062 
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
in situ image; 
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
dorsal view of specimen before preservation 
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
ventral view 
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
dorsal calcareous ossicles. Scale bars: 2 cm (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
); 1 cm (
<emphasis bold="true" pageId="0" pageNumber="1">B, C</emphasis>
); 50 
<normalizedToken originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
). Image attribution: Durden and Smith (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
); Wiklund, Durden, Drennan, and McQuaid (
<emphasis bold="true" pageId="0" pageNumber="1">B, C</emphasis>
); Bribiesca-Contreras (
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">
Closest match on public databases for the COI gene sequence was other sequences of 
<taxonomicName authorityName="Theel" authorityYear="1979" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laetmogone wyvillethomsoni" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="species" species="wyvillethomsoni">
<emphasis italics="true" pageId="0" pageNumber="1">Laetmogone wyvillethomsoni</emphasis>
</taxonomicName>
<normalizedToken originalValue="Théel">Theel</normalizedToken>
, 1879 (4.0-5.8% K2P genetic distance) from the Ross Sea and Marie Byrd Seamounts (
<bibRefCitation DOI="https://doi.org/10.1016/j.dsr2.2010.10.011" author="O'Loughlin, PM" journalOrPublisher="Part II, Topical Studies in Oceanography" pageId="0" pageNumber="1" pagination="264 - 275" refId="B74" refString="O'Loughlin, PM, Paulay, G, Davey, N, Michonneau, F, 2011. The Antarctic region as a marine biodiversity hotspot for echinoderms: Diversity and diversification of sea cucumbers. Deep-sea Research. Part II, Topical Studies in Oceanography 58 (1-2): 264 - 275, DOI: https://doi.org/10.1016/j.dsr2.2010.10.011" title="The Antarctic region as a marine biodiversity hotspot for echinoderms: Diversity and diversification of sea cucumbers. Deep-sea Research." url="https://doi.org/10.1016/j.dsr2.2010.10.011" volume="58" year="2011">
<normalizedToken originalValue="O’Loughlin">O'Loughlin</normalizedToken>
et al. 2011
</bibRefCitation>
). The specimen from the CCZ and specimens from 
<taxonomicName genus="L." lsidName="L. wyvillethomsoni" pageId="0" pageNumber="1" rank="species" species="wyvillethomsoni">
<emphasis italics="true" pageId="0" pageNumber="1">L. wyvillethomsoni</emphasis>
</taxonomicName>
from Antarctica were recovered in our phylogeny (Fig. 
<figureCitation captionStart="Figure 34" captionStartId="F34" captionText="Figure 34. Phylogenetic tree of the class Holothuroidea. Concatenated (12 S, 16 S, 18 S, 28 S, COI, and H 3) median consensus BEAST tree with posterior probability (PP) and bootstrap (BS) values indicated. Only values of PP&gt; 0.70 and BS&gt; 50 are shown, with values of PP&gt; 0.95 and BS&gt; 90 indicated with a circle. Nodes not recovered on the RAxML tree are indicated with a hyphen. Sequences generated in this study are highlighted in violet." figureDoi="10.3897/zookeys.1113.82172.figure34" httpUri="https://binary.pensoft.net/fig/716360" pageId="0" pageNumber="1">34</figureCitation>
) in a well-supported clade (Fig. 
<figureCitation captionStart="Figure 34" captionStartId="F34" captionText="Figure 34. Phylogenetic tree of the class Holothuroidea. Concatenated (12 S, 16 S, 18 S, 28 S, COI, and H 3) median consensus BEAST tree with posterior probability (PP) and bootstrap (BS) values indicated. Only values of PP&gt; 0.70 and BS&gt; 50 are shown, with values of PP&gt; 0.95 and BS&gt; 90 indicated with a circle. Nodes not recovered on the RAxML tree are indicated with a hyphen. Sequences generated in this study are highlighted in violet." figureDoi="10.3897/zookeys.1113.82172.figure34" httpUri="https://binary.pensoft.net/fig/716360" pageId="0" pageNumber="1">34</figureCitation>
), which is subdivided in three clades including the two Antarctic clades stratified by depth reported in 
<bibRefCitation DOI="https://doi.org/10.1016/j.dsr2.2010.10.011" author="O'Loughlin, PM" journalOrPublisher="Part II, Topical Studies in Oceanography" pageId="0" pageNumber="1" pagination="264 - 275" refId="B74" refString="O'Loughlin, PM, Paulay, G, Davey, N, Michonneau, F, 2011. The Antarctic region as a marine biodiversity hotspot for echinoderms: Diversity and diversification of sea cucumbers. Deep-sea Research. Part II, Topical Studies in Oceanography 58 (1-2): 264 - 275, DOI: https://doi.org/10.1016/j.dsr2.2010.10.011" title="The Antarctic region as a marine biodiversity hotspot for echinoderms: Diversity and diversification of sea cucumbers. Deep-sea Research." url="https://doi.org/10.1016/j.dsr2.2010.10.011" volume="58" year="2011">
<normalizedToken originalValue="O’Loughlin">O'Loughlin</normalizedToken>
et al. (2011)
</bibRefCitation>
, and the specimen from the CCZ. Type material for 
<taxonomicName genus="L." lsidName="L. wyvillethomsoni" pageId="0" pageNumber="1" rank="species" species="wyvillethomsoni">
<emphasis italics="true" pageId="0" pageNumber="1">L. wyvillethomsoni</emphasis>
</taxonomicName>
was collected during the H.M.S. Challenger expedition at stations 300 (off the coast of South America; 33.7° S, 78.3°W; 2514 m depth) and 147 (west of the Crozet Islands; 46.2667° S, 48.45° E; 2926 m), and high morphological variability was reported (
<bibRefCitation author="Theel, H" journalOrPublisher="Bihang Till K Svenska Vet Akad Handlingar" pageId="0" pageNumber="1" pagination="1 - 20" refId="B94" refString="Theel, H, 1879. Preliminary report on the Holothuroidae of the exploring voyage of the H.M.S. Challenger under professor Sir C. Wyville Thomson F.R.S., Part 1. Bihang Till K Svenska Vet Akad Handlingar 5: 1 - 20" title="Preliminary report on the Holothuroidae of the exploring voyage of the H. M. S. Challenger under professor Sir C. Wyville Thomson F. R. S., Part 1." volume="5" year="1879">
<normalizedToken originalValue="Théel">Theel</normalizedToken>
1879
</bibRefCitation>
). The CCZ specimen morphologically resembles 
<taxonomicName genus="L." lsidName="L. wyvillethomsoni" pageId="0" pageNumber="1" rank="species" species="wyvillethomsoni">
<emphasis italics="true" pageId="0" pageNumber="1">L. wyvillethomsoni</emphasis>
</taxonomicName>
, but no rod-shaped ossicles were found in the dorsal skin, differing from the original description.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="ecology">
<paragraph pageId="0" pageNumber="1">Ecology.</paragraph>
<paragraph pageId="0" pageNumber="1">The specimen was found on the sedimented seafloor of a seamount in APEI 7 at 3132 m depth.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="comparisons">
<paragraph pageId="0" pageNumber="1">Comparison with image-based catalogue.</paragraph>
<paragraph pageId="0" pageNumber="1">
No similar laetmogonid morphotypes have been encountered in seabed image surveys conducted in the eastern CCZ or in abyssal areas of the Kiribati EEZ. Consequently, the in situ image of specimen CCZ_062 was catalogued as a new morphotype (i.e., 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Laetmogone" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Laetmogone</emphasis>
</taxonomicName>
sp. indet., HOL_123).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
Class 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="class">Ophiuroidea</taxonomicName>
</emphasis>
</paragraph>
<paragraph pageId="0" pageNumber="1">
To date, there are 1201 records of ophiuroids occurring at&gt; 3000 m depth in the CCZ, with 117 representing preserved specimens (
<bibRefCitation author="O'Loughlin, PM" journalOrPublisher="Part II, Topical Studies in Oceanography" pageId="0" pageNumber="1" refId="B75" refString="OBIS (2022) Ocean Biodiversity Information System. Intergovernmental Oceanographic Commission of UNESCO." year="2011">OBIS 2022</bibRefCitation>
). Four specimens belonging to three different species were collected and the barcoding gene COI was amplified for all but one, for which both 18S and 28S were amplified. These sequences, excluding 18S, were included in a concatenated alignment (28S, and COI) and used to estimate a phylogenetic tree (Fig. 
<figureCitation captionStart="Figure 50" captionStartId="F50" captionText="Figure 50. Phylogenetic tree of Ophiuroidea. Concatenated (28 S, and COI) median consensus BEAST tree with posterior probability (PP) and bootstrap (BS) values indicated. Only values of PP&gt; 0.70 and BS&gt; 50 are shown, with values of PP&gt; 0.95 and BS&gt; 90 indicated with a circle. Nodes not recovered on the RAxML tree are indicated with a hyphen. Sequences generated in this study are highlighted in violet." figureDoi="10.3897/zookeys.1113.82172.figure50" httpUri="https://binary.pensoft.net/fig/716376" pageId="0" pageNumber="1">50</figureCitation>
). 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="class">Ophiuroidea</taxonomicName>
is amongst the most challenging groups to identify and classify based on seabed image data only; key morphological features are too small to be appropriately visualised (e.g., plates and scales) and/or are found on the ventral disc (not visible in images). As a result, the taxonomic resolution of ophiuroid morphotypes catalogued from seabed imagery is usually much lower than that in other echinoderm groups. Consequently, connectivity and distribution patterns of ophiuroids derived from seabed image data should be interpreted cautiously.
</paragraph>
<caption doi="10.3897/zookeys.1113.82172.figure50" httpUri="https://binary.pensoft.net/fig/716376" pageId="0" pageNumber="1" start="Figure 50" startId="F50">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 50.</emphasis>
Phylogenetic tree of 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="class">Ophiuroidea</taxonomicName>
. Concatenated (28S, and COI) median consensus BEAST tree with posterior probability (PP) and bootstrap (BS) values indicated. Only values of PP&gt; 0.70 and BS&gt; 50 are shown, with values of PP&gt; 0.95 and BS&gt; 90 indicated with a circle. Nodes not recovered on the RAxML tree are indicated with a hyphen. Sequences generated in this study are highlighted in violet.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
Subclass 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="subClass" subClass="Myophiuroidea">Myophiuroidea</taxonomicName>
Matsumoto, 1915
</emphasis>
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
Infraclass 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" infraClass="Metophiurida" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="infraClass">Metophiurida</taxonomicName>
Matsumoto, 1913
</emphasis>
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
Superorder 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="superOrder" superOrder="Ophintegrida">Ophintegrida</taxonomicName>
<normalizedToken originalValue="O’Hara">O'Hara</normalizedToken>
, Hugall, Thuy, 
<normalizedToken originalValue="Stöhr">Stoehr</normalizedToken>
&amp; Martynov, 2017
</emphasis>
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
Order 
<taxonomicName authorityName="Theel" authorityYear="1879" class="Ophiuroidea" family="Laetmogonidae" genus="Laetmogone" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="order">Ophioscolecida</taxonomicName>
<normalizedToken originalValue="O’Hara">O'Hara</normalizedToken>
, Hugall, Thuy, 
<normalizedToken originalValue="Stöhr">Stoehr</normalizedToken>
&amp; Martynov, 2017
</emphasis>
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
Family 
<taxonomicName authorityName="Lutken" authorityYear="1869" class="Ophiuroidea" family="Ophioscolecidae" kingdom="Animalia" lsidName="" order="Ophioscolecida" pageId="0" pageNumber="1" phylum="Echinodermata" rank="family">Ophioscolecidae</taxonomicName>
<normalizedToken originalValue="Lütken">Luetken</normalizedToken>
, 1869
</emphasis>
</paragraph>
</subSubSection>
</treatment>
</document>