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<document id="0555DE71D49E2D3D47EE435AF4B81A6E" ID-DOI="10.24199/j.mmv.2005.62.5" ID-ISSN="1447-2554" ID-Zenodo-Dep="12208025" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1718988401551" checkinUser="felipe" docAuthor="O'Loughlin, P. Mark &amp; Ahearn, Cynthia" docDate="2005" docId="116087F5FFB5FFFDFF357914FD9D1938" docLanguage="en" docName="MemMusVictoria.62.2.147-179.pdf" docOrigin="Memoirs of Museum Victoria 62 (2)" docSource="https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-62-issue-2-2005/pages-147-179/" docStyle="DocumentStyle:99484BB52C5EA01CDE4EA5EECB5782C2.2:MemMusVictoria.2003-.journal_article.type2" docStyleId="99484BB52C5EA01CDE4EA5EECB5782C2" docStyleName="MemMusVictoria.2003-.journal_article.type2" docStyleVersion="2" docTitle="Pseudostichopus profundi Djakonov 1952" docType="treatment" docVersion="3" lastPageNumber="176" masterDocId="ED59FF8DFFA8FFE0FFB7783EFFFE1F73" masterDocTitle="A review of pygal-furrowed Synallactidae (Echinodermata: Holothuroidea), with new species from the Antarctic, Atlantic and Pacific oceans" masterLastPageNumber="179" masterPageNumber="147" pageNumber="176" updateTime="1718994707238" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="5D8506DD788CF85092FB91836F40A433">A review of pygal-furrowed Synallactidae (Echinodermata: Holothuroidea), with new species from the Antarctic, Atlantic and Pacific oceans</mods:title>
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<paragraph id="997636E3FFB5FFFDFF357914FDC81E32" blockId="29.[130,566,298,321]" box="[130,566,298,321]" pageId="29" pageNumber="176">
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<taxonomicName id="5EC94D60FFB5FFFDFF357914FDC81E32" ID-CoL="6WHSH" authority="Djakonov, 1952" authorityName="Djakonov" authorityYear="1952" box="[130,566,298,321]" class="Holothuroidea" family="Pseudostichopodidae" genus="Pseudostichopus" kingdom="Animalia" order="Persiculida" pageId="29" pageNumber="176" phylum="Echinodermata" rank="species" species="profundi">
<emphasis id="ABBDEAF1FFB5FFFDFF357914FE711E33" bold="true" box="[130,399,298,320]" italics="true" pageId="29" pageNumber="176">Pseudostichopus profundi</emphasis>
<bibRefCitation id="FD584B12FFB5FFFDFE217915FDC81E32" author="Djakonov, A. M." box="[406,566,299,321]" pageId="29" pageNumber="176" pagination="116 - 130" refId="ref32486" refString="Djakonov, A. M. 1952. Echinoderms from abyssal depths in the waters around Kamtchatka. Investigations of the Far Eastern Seas of the U. S. S. R. 3: 116 - 130. (In Russian)" type="journal article" year="1952">Djakonov, 1952</bibRefCitation>
</taxonomicName>
</heading>
</paragraph>
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<subSubSection id="D1D36568FFB5FFFDFF2B796AFD181E1B" box="[156,742,340,360]" pageId="29" pageNumber="176" type="reference_group">
<paragraph id="997636E3FFB5FFFDFF2B796AFD181E1B" blockId="29.[156,742,340,360]" box="[156,742,340,360]" pageId="29" pageNumber="176">
<treatmentCitationGroup id="B9D911CDFFB5FFFDFF2B796AFD181E1B" box="[156,742,340,360]" pageId="29" pageNumber="176">
<treatmentCitation id="186810F2FFB5FFFDFF2B796AFD881E1B" author="Djakonov, A. M." box="[156,630,340,360]" page="129" pageId="29" pageNumber="176" year="1952">
<taxonomicName id="5EC94D60FFB5FFFDFF2B796AFD881E1B" ID-CoL="6WHSH" authority="Djakonov, 1952: 127 - 129" authorityName="Djakonov" authorityPageNumber="127 - 129" authorityYear="1952" box="[156,630,340,360]" class="Holothuroidea" family="Pseudostichopodidae" genus="Pseudostichopus" kingdom="Animalia" order="Persiculida" pageId="29" pageNumber="176" phylum="Echinodermata" rank="species" species="profundi">
<emphasis id="ABBDEAF1FFB5FFFDFF2B796AFE7A1E14" box="[156,388,340,359]" italics="true" pageId="29" pageNumber="176">Pseudostichopus profundi</emphasis>
<bibRefCitation id="FD584B12FFB5FFFDFE3D796AFD881E1B" author="Djakonov, A. M." box="[394,630,340,360]" pageId="29" pageNumber="176" pagination="116 - 130" refId="ref32486" refString="Djakonov, A. M. 1952. Echinoderms from abyssal depths in the waters around Kamtchatka. Investigations of the Far Eastern Seas of the U. S. S. R. 3: 116 - 130. (In Russian)" type="journal article" year="1952">Djakonov, 1952: 127129</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, figs 1518.
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</paragraph>
</subSubSection>
<subSubSection id="D1D36568FFB5FFFDFF357945FD9D1938" pageId="29" pageNumber="176" type="materials_examined">
<paragraph id="997636E3FFB5FFFDFF357945FDD01ED9" blockId="29.[130,762,379,426]" pageId="29" pageNumber="176">
<emphasis id="ABBDEAF1FFB5FFFDFF357945FECB1EFD" box="[130,309,379,398]" italics="true" pageId="29" pageNumber="176">Material examined</emphasis>
.
<materialsCitation id="29A13CBEFFB5FFFDFEFF7945FDD71ED9" collectingDate="1946-07-25" collectionCode="RAS" country="Russia" elevation="4150" latitude="52.75" location="Kamtchatka" longLatPrecision="1081" longitude="161.68333" pageId="29" pageNumber="176" specimenCount="1" stateProvince="Kamchatka" typeStatus="syntype">
<typeStatus id="46728841FFB5FFFDFEFF7945FE6C1EFC" box="[328,402,379,399]" pageId="29" pageNumber="176" type="syntype">Syntype</typeStatus>
(
<collectionCode id="FFD8AE26FFB5FFFDFE117945FE281EFC" box="[422,470,379,399]" pageId="29" pageNumber="176">RAS</collectionCode>
).
<collectingCountry id="E1DE7673FFB5FFFDFE597945FDD21EFC" box="[494,556,379,399]" name="Russia" pageId="29" pageNumber="176">Russia</collectingCountry>
, SE of
<collectingRegion id="5B0DF801FFB5FFFDFD307945FD081EFC" box="[647,758,379,399]" country="Russia" name="Kamchatka" pageId="29" pageNumber="176">Kamtchatka</collectingRegion>
,
<geoCoordinate id="FCFD5024FFB5FFFDFF3579A8FF301ED9" box="[130,206,406,426]" degrees="52" direction="north" minutes="45" orientation="latitude" pageId="29" pageNumber="176" precision="925" value="52.75">52°45'N</geoCoordinate>
,
<geoCoordinate id="FCFD5024FFB5FFFDFF6F79A8FED21ED9" box="[216,300,406,426]" degrees="161" direction="east" minutes="41" orientation="longitude" pageId="29" pageNumber="176" precision="925" value="161.68333">161°41'E</geoCoordinate>
,
<quantity id="5E319B06FFB5FFFDFE8179A8FE4D1EDA" box="[310,435,406,426]" metricMagnitude="3" metricUnit="m" metricValue="4.15" metricValueMax="4.2" metricValueMin="4.1" pageId="29" pageNumber="176" unit="m" value="4150.0" valueMax="4200.0" valueMin="4100.0">
<elevation id="12E4D1D0FFB5FFFDFE8179A8FE4D1EDA" box="[310,435,406,426]" metricMagnitude="3" metricUnit="m" metricValue="4.15" metricValueMax="4.2" metricValueMin="4.1" pageId="29" pageNumber="176" unit="m" value="4150.0" valueMax="4200.0" valueMin="4100.0">41004200 m</elevation>
</quantity>
,
<date id="ED771023FFB5FFFDFE0979A8FDD71ED9" box="[446,553,406,426]" pageId="29" pageNumber="176" value="1946-07-25">
<collectingDate id="FD33E9CBFFB5FFFDFE0979A8FDD71ED9" box="[446,553,406,426]" pageId="29" pageNumber="176" value="1946-07-25">25 Jul 1946</collectingDate>
</date>
</materialsCitation>
.
</paragraph>
<paragraph id="997636E3FFB5FFFDFF347981FEA51C43" blockId="29.[130,761,447,816]" pageId="29" pageNumber="176">
<emphasis id="ABBDEAF1FFB5FFFDFF347981FF061EA6" box="[131,248,447,469]" italics="true" pageId="29" pageNumber="176">Description</emphasis>
. Up to
<quantity id="5E319B06FFB5FFFDFEFB7981FE681EA6" box="[332,406,447,469]" metricMagnitude="-2" metricUnit="m" metricValue="5.6" pageId="29" pageNumber="176" unit="mm" value="56.0">56 mm</quantity>
long; body cylindrical; body wall thick, opaque, soft; few sand grain attachments; very small tube feet unevenly distributed all over body, lengths variable, largest anteriorly and posteriorly, fewest mid-dorsally and midventrally; 20 tentacles; radial plates of calcareous ring lacking &quot;teeth&quot;; longitudinal muscles cylindrical; gonad tubules unbranched; tentacle ossicles thick, broad, bent, irregular, variably perforated, somewhat mesh-like, typically 200 µm long; tube feet ossicles variable from irregular rods, to knots, to irregular curved mesh-like narrow plates, up to 180 µm long; posterior lobes with rare unbranched rods, irregular ends, up to
<quantity id="5E319B06FFB5FFFDFF357AC3FF251C60" box="[130,219,765,787]" metricMagnitude="-4" metricUnit="m" metricValue="1.7" pageId="29" pageNumber="176" unit="mm" value="0.17">0.17 mm</quantity>
long; gonad and respiratory trees with small, smooth, sparse rod fragments.
</paragraph>
<paragraph id="997636E3FFB5FFFDFF357B78FDD11C2F" blockId="29.[130,559,838,860]" box="[130,559,838,860]" pageId="29" pageNumber="176">
<emphasis id="ABBDEAF1FFB5FFFDFF357B78FF371C2F" box="[130,201,838,860]" italics="true" pageId="29" pageNumber="176">Colour</emphasis>
. Body and tube feet brown to grey.
</paragraph>
<paragraph id="997636E3FFB5FFFDFF357B4FFD511CF4" blockId="29.[130,687,881,903]" box="[130,687,881,903]" pageId="29" pageNumber="176">
<emphasis id="ABBDEAF1FFB5FFFDFF357B4FFF021CF4" box="[130,252,881,903]" italics="true" pageId="29" pageNumber="176">Distribution</emphasis>
.
<collectingCountry id="E1DE7673FFB5FFFDFEBE7B4FFEB01CF4" box="[265,334,881,903]" name="Russia" pageId="29" pageNumber="176">Russia</collectingCountry>
, SE of
<collectingRegion id="5B0DF801FFB5FFFDFE2F7B4FFDED1CF4" box="[408,531,881,903]" country="Russia" name="Kamchatka" pageId="29" pageNumber="176">Kamtchatka</collectingRegion>
,
<quantity id="5E319B06FFB5FFFDFDA97B4FFD551CF4" box="[542,683,881,903]" metricMagnitude="3" metricUnit="m" metricValue="4.15" metricValueMax="4.2" metricValueMin="4.1" pageId="29" pageNumber="176" unit="m" value="4150.0" valueMax="4200.0" valueMin="4100.0">41004200 m</quantity>
.
</paragraph>
<paragraph id="997636E3FFB5FFFDFF357BA3FE311A59" blockId="29.[130,762,924,1611]" pageId="29" pageNumber="176">
<emphasis id="ABBDEAF1FFB5FFFDFF357BA3FF271CC0" box="[130,217,925,947]" italics="true" pageId="29" pageNumber="176">Remarks</emphasis>
. The description above is based on
<bibRefCitation id="FD584B12FFB5FFFDFDF17BA2FD0B1CC1" author="Djakonov, A. M." box="[582,757,924,946]" pageId="29" pageNumber="176" pagination="116 - 130" refId="ref32486" refString="Djakonov, A. M. 1952. Echinoderms from abyssal depths in the waters around Kamtchatka. Investigations of the Far Eastern Seas of the U. S. S. R. 3: 116 - 130. (In Russian)" type="journal article" year="1952">Djakonov (1952)</bibRefCitation>
. The
<typeStatus id="46728841FFB5FFFDFF187B87FF031CBC" box="[175,253,953,975]" pageId="29" pageNumber="176" type="syntype">syntype</typeStatus>
that was examined here was
<quantity id="5E319B06FFB5FFFDFDA87B87FD9A1CBC" box="[543,612,953,975]" metricMagnitude="-2" metricUnit="m" metricValue="2.7" pageId="29" pageNumber="176" unit="mm" value="27.0">27 mm</quantity>
long, and very soft. The longitudinal muscles were rounded laterally, but broadly attached to the body wall and not cylindrical, and are considered here to be flat. No gonad was found. The pygal tube feet were soft, cylindrical, and typically
<quantity id="5E319B06FFB5FFFDFDA27C13FD9F1B30" box="[533,609,1069,1091]" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="29" pageNumber="176" unit="mm" value="0.3">0.3 mm</quantity>
long,
<quantity id="5E319B06FFB5FFFDFD177C13FD071B30" box="[672,761,1069,1091]" metricMagnitude="-4" metricUnit="m" metricValue="1.5" pageId="29" pageNumber="176" unit="mm" value="0.15">0.15 mm</quantity>
diameter. No ossicles were found in the tube feet. The absence of ossicles in the tube feet, and flat longitudinal muscles, suggest that the
<typeStatus id="46728841FFB5FFFDFEB87CBAFEA31BE9" box="[271,349,1156,1178]" pageId="29" pageNumber="176" type="syntype">syntype</typeStatus>
examined here is not conspecific with
<taxonomicName id="5EC94D60FFB5FFFDFF357C9FFF091BC4" box="[130,247,1185,1207]" class="Holothuroidea" family="Pseudostichopodidae" genus="Pseudostichopus" kingdom="Animalia" order="Persiculida" pageId="29" pageNumber="176" phylum="Echinodermata" rank="species" species="profundi">
<emphasis id="ABBDEAF1FFB5FFFDFF357C9FFF091BC4" box="[130,247,1185,1207]" italics="true" pageId="29" pageNumber="176">P. profundi</emphasis>
</taxonomicName>
as described.
<bibRefCitation id="FD584B12FFB5FFFDFE2A7C9FFDAE1BC4" author="Djakonov, A. M." box="[413,592,1185,1207]" pageId="29" pageNumber="176" pagination="116 - 130" refId="ref32486" refString="Djakonov, A. M. 1952. Echinoderms from abyssal depths in the waters around Kamtchatka. Investigations of the Far Eastern Seas of the U. S. S. R. 3: 116 - 130. (In Russian)" type="journal article" year="1952">Djakonov (1952)</bibRefCitation>
described very small, smooth rods in genital tubules and respiratory trees. We judge these to be probably artefacts and not ossicles, since such very small fragmentary rods are frequently present in gonad and respiratory tree preparations.
</paragraph>
<paragraph id="997636E3FFB5FFFDFF157D0FFE3F1A86" blockId="29.[130,762,924,1611]" pageId="29" pageNumber="176">
Reference by
<bibRefCitation id="FD584B12FFB5FFFDFE837D0FFE1D1A34" author="Djakonov, A. M." box="[308,483,1329,1351]" pageId="29" pageNumber="176" pagination="116 - 130" refId="ref32486" refString="Djakonov, A. M. 1952. Echinoderms from abyssal depths in the waters around Kamtchatka. Investigations of the Far Eastern Seas of the U. S. S. R. 3: 116 - 130. (In Russian)" type="journal article" year="1952">Djakonov (1952)</bibRefCitation>
to cylindrical longitudinal muscles and unbranched gonad tubules indicate an appropriate assignment of the species to
<taxonomicName id="5EC94D60FFB5FFFDFE767D55FD961AF2" authorityName=", Theel" authorityYear="1886" box="[449,616,1387,1409]" class="Holothuroidea" family="Pseudostichopodidae" genus="Pseudostichopus" kingdom="Animalia" order="Persiculida" pageId="29" pageNumber="176" phylum="Echinodermata" rank="genus">
<emphasis id="ABBDEAF1FFB5FFFDFE767D55FD961AF2" box="[449,616,1387,1409]" italics="true" pageId="29" pageNumber="176">Pseudostichopus</emphasis>
</taxonomicName>
. But the flat longitudinal muscles, and absence of prominent tube feet on the paired radii, indicate that the
<typeStatus id="46728841FFB5FFFDFE117D9BFE0A1AC8" box="[422,500,1445,1467]" pageId="29" pageNumber="176" type="syntype">syntype</typeStatus>
examined here belongs in
<taxonomicName id="5EC94D60FFB5FFFDFF357DFCFEDD1AAB" authorityName=", Heding" authorityYear="1935" box="[130,291,1474,1496]" class="Holothuroidea" family="Molpadiodemidae" genus="Molpadiodemas" kingdom="Animalia" order="Persiculida" pageId="29" pageNumber="176" phylum="Echinodermata" rank="genus">
<emphasis id="ABBDEAF1FFB5FFFDFF357DFCFEDD1AAB" box="[130,291,1474,1496]" italics="true" pageId="29" pageNumber="176">Molpadiodemas</emphasis>
</taxonomicName>
. The characters of the species, and generic assignment, remain unresolved.
</paragraph>
<paragraph id="997636E3FFB5FFFDFF157DC2FD9D1938" blockId="29.[130,762,924,1611]" pageId="29" pageNumber="176">
Amongst
<taxonomicName id="5EC94D60FFB5FFFDFEB07DC2FDFE1961" box="[263,512,1532,1554]" pageId="29" pageNumber="176">
<emphasis id="ABBDEAF1FFB5FFFDFEB07DC2FE501961" box="[263,430,1532,1554]" italics="true" pageId="29" pageNumber="176">Pseudostichopus</emphasis>
species
</taxonomicName>
the unique character of
<taxonomicName id="5EC94D60FFB5FFFDFF357E27FF08195C" box="[130,246,1561,1583]" class="Holothuroidea" family="Pseudostichopodidae" genus="Pseudostichopus" kingdom="Animalia" order="Persiculida" pageId="29" pageNumber="176" phylum="Echinodermata" rank="species" species="profundi">
<emphasis id="ABBDEAF1FFB5FFFDFF357E27FF08195C" box="[130,246,1561,1583]" italics="true" pageId="29" pageNumber="176">P. profundi</emphasis>
</taxonomicName>
(as described by Djakonov) is the presence of curved mesh-like narrow plates in the tube feet.
</paragraph>
</subSubSection>
</treatment>
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