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<document id="B5D239BD1F04D7C76DFD715887E73A9A" ID-DOI="10.1080/00222930801935958" ID-ISSN="1464-5262" ID-Zenodo-Dep="5219188" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629339757996" checkinUser="felipe" docAuthor="Kott, Patricia" docDate="2008" docId="E8619D712D17427BFE74FECBFD5DFA72" docLanguage="en" docName="JNatHist.42.15-16.1103-1217.pdf" docOrigin="Journal of Natural History 42 (15 - 16)" docSource="http://dx.doi.org/10.1080/00222930801935958" docStyle="DocumentStyle:FCA295E821436EF9307F50C7AC261B53.5:JNatHist.2008-2012.journal_article.1cover" docStyleId="FCA295E821436EF9307F50C7AC261B53" docStyleName="JNatHist.2008-2012.journal_article.1cover" docStyleVersion="5" docTitle="Didemnum plebeium Kott 2005" docType="treatment" docVersion="5" lastPageNumber="1188" masterDocId="1458E5092D41422DFFB2FFC1FF86FFE8" masterDocTitle="Ascidiacea (Tunicata) from deep waters of the continental shelf of Western Australia" masterLastPageNumber="1217" masterPageNumber="1103" pageNumber="1188" updateTime="1699068418599" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="D66EC9DB0B03B045FC12749D97C47724">Ascidiacea (Tunicata) from deep waters of the continental shelf of Western Australia</mods:title>
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<mods:namePart id="52E2042A62D0ABD66815DE27D903ACB3">Kott, Patricia</mods:namePart>
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<mods:title id="4CE4140EF22C61A3CA711FB81A012B0B">Journal of Natural History</mods:title>
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<mods:date id="47B00824B48ED7136AD8CED3D1B467BF">2008</mods:date>
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<mods:number id="4865B5B0563F8C427AECB906C44E416C">42</mods:number>
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<mods:number id="5FF5B364C8A2BFC27A74B6F210899786">15 - 16</mods:number>
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<treatment id="E8619D712D17427BFE74FECBFD5DFA72" LSID="urn:lsid:plazi:treatment:E8619D712D17427BFE74FECBFD5DFA72" httpUri="http://treatment.plazi.org/id/E8619D712D17427BFE74FECBFD5DFA72" lastPageNumber="1188" pageId="86" pageNumber="1188">
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<heading id="3B3F9B0B2D17427BFE74FECBFCA8FECA" box="[454,814,266,290]" centered="true" fontSize="36" level="2" pageId="86" pageNumber="1188" reason="7">
<taxonomicName id="A7C857E42D17427BFE74FECBFCA8FECA" ID-CoL="35WT7" authority="Kott, 2005" authorityName="Kott" authorityYear="2005" box="[454,814,266,290]" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="plebeium">
<emphasis id="52BCF0752D17427BFE74FECBFD2CFECA" bold="true" box="[454,682,266,290]" italics="true" pageId="86" pageNumber="1188">Didemnum plebeium</emphasis>
Kott, 2005
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</paragraph>
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<subSubSection id="28D27FEC2D17427BFD84FEEBFD41FEAA" box="[566,711,298,322]" pageId="86" pageNumber="1188" type="description">
<paragraph id="60772C672D17427BFD84FEEBFD41FEAA" blockId="86.[146,814,266,356]" box="[566,711,298,322]" pageId="86" pageNumber="1188">
(
<figureCitation id="F8F330E22D17427BFD8CFEEBFD39FEAA" box="[574,703,298,322]" captionStart="Figure 18" captionStartId="110.[146,213,1558,1580]" captionTargetBox="[281,968,165,1522]" captionTargetId="figure-1@110.[281,969,165,1522]" captionTargetPageId="110" captionText="Figure 18. Scanning electron micrographs of didemnid spicules: A, Didemnum multiampullae, QM G328057: B, Didemnum ossium, QM G328055; C, Didemnum perplexum, QM G328034; D, Didemnum plebeium, QM G328451; E, Didemnum tapetum, QM G328016; F, Didemnum velum, QM G328120; G, Didemnum sp 1, QM G328160; H, Didemnum sp. 2, QM G328166." figureDoi="http://doi.org/10.5281/zenodo.5219224" httpUri="https://zenodo.org/record/5219224/files/figure.png" pageId="86" pageNumber="1188">Figure 18D</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="28D27FEC2D17427BFF20FE8DFDE7FE8B" box="[146,609,331,356]" pageId="86" pageNumber="1188" type="reference_group">
<paragraph id="60772C672D17427BFF20FE8DFDE7FE8B" blockId="86.[146,814,266,356]" box="[146,609,331,356]" pageId="86" pageNumber="1188">
<treatmentCitationGroup id="40D80B492D17427BFF20FE8DFDE7FE8B" box="[146,609,331,356]" pageId="86" pageNumber="1188">
<treatmentCitation id="E1690A762D17427BFF20FE8DFDD8FE8B" author="Kott P" box="[146,606,331,356]" httpUri="http://treatment.plazi.org/id/7352D565FB19FF9EFE1DFDBB667AFEB0" page="245" pageId="86" pageNumber="1188" year="2005">
<taxonomicName id="A7C857E42D17427BFF20FE8DFDD8FE8B" ID-CoL="35WT7" authority="Kott, 2005 a, p. 245" authorityName="Kott" authorityPageNumber="245" authorityYear="2005" box="[146,606,331,356]" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="plebeium">
<emphasis id="52BCF0752D17427BFF20FE8DFEF3FE8C" box="[146,373,332,356]" italics="true" pageId="86" pageNumber="1188">Didemnum plebeium</emphasis>
<bibRefCitation id="045951962D17427BFECCFE8AFD8CFE8B" author="Kott P" box="[382,522,331,355]" pageId="86" pageNumber="1188" pagination="2409 - 2479" refId="ref56627" refString="Kott P. 2005 a. New and little known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 3). Journal of Natural History 39 (26): 2409 - 2479." type="journal article" year="2005">Kott, 2005a</bibRefCitation>
, p. 245
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.
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</paragraph>
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<subSubSection id="28D27FEC2D17427BFF20FE5DFD5DFA72" pageId="86" pageNumber="1188" type="distribution">
<paragraph id="60772C672D17427BFF20FE5DFE9EFE5C" blockId="86.[146,280,412,436]" box="[146,280,412,436]" pageId="86" pageNumber="1188">
<emphasis id="52BCF0752D17427BFF20FE5DFE9EFE5C" box="[146,280,412,436]" italics="true" pageId="86" pageNumber="1188">Distribution</emphasis>
</paragraph>
<paragraph id="60772C672D17427BFF20FE04FE29FDF6" blockId="86.[146,1103,453,542]" pageId="86" pageNumber="1188">
<materialsCitation id="D0A0263A2D17427BFF20FE04FE29FDF6" collectionCode="CSIRO, QM" county="Previously" elevation="20419" location="Stn" municipality="Point Hillier" pageId="86" pageNumber="1188" specimenCode="SS10, G328451" specimenCount="1" stateProvince="Western Australia">
<collectingCounty id="891654EB2D17427BFF20FE04FE8EFE35" box="[146,264,453,477]" pageId="86" pageNumber="1188">Previously</collectingCounty>
recorded (see
<bibRefCitation id="045951962D17427BFE0CFE04FDC1FE35" author="Kott P" box="[446,583,453,477]" pageId="86" pageNumber="1188" pagination="2409 - 2479" refId="ref56627" refString="Kott P. 2005 a. New and little known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 3). Journal of Natural History 39 (26): 2409 - 2479." type="journal article" year="2005">Kott 2005a</bibRefCitation>
):
<collectingRegion id="A20CE2852D17427BFDD2FE04FCB3FE35" box="[608,821,453,477]" country="Australia" name="Western Australia" pageId="86" pageNumber="1188">Western Australia</collectingRegion>
(Dampier Archipelago. New record:
<collectingRegion id="A20CE2852D17427BFE84FE24FD8BFE15" box="[310,525,485,509]" country="Australia" name="Western Australia" pageId="86" pageNumber="1188">Western Australia</collectingRegion>
<collectionCode id="06D9B4A22D17427BFDAEFE24FDF7FE15" box="[540,625,485,509]" country="Australia" httpUri="http://grbio.org/cool/0k2v-y6wz" name="Australian National Fish Collection" pageId="86" pageNumber="1188" type="Museum">CSIRO</collectionCode>
<specimenCode id="306E841C2D17427BFD32FE24FD31FE15" box="[640,695,485,509]" collectionCode="CSIRO" country="Australia" httpUri="http://grbio.org/cool/0k2v-y6wz" name="Australian National Fish Collection" pageId="86" pageNumber="1188" type="Museum">SS10</specimenCode>
/05 (
<collectingMunicipality id="8013B61D2D17427BFD43FE24FC0DFE15" box="[753,907,485,509]" pageId="86" pageNumber="1188">Point Hillier</collectingMunicipality>
,
<location id="65177ABC2D17427BFC2CFE24FC42FE15" LSID="urn:lsid:plazi:treatment:E8619D712D17427BFE74FECBFD5DFA72:65177ABC2D17427BFC2CFE24FC42FE15" box="[926,964,485,509]" county="Previously" municipality="Point Hillier" name="Stn" pageId="86" pageNumber="1188" stateProvince="Western Australia">Stn</location>
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<elevation id="EBE5CB542D17427BFC66FE24FBCCFE15" box="[980,1098,485,509]" metricMagnitude="4" metricUnit="m" metricValue="2.0419" pageId="86" pageNumber="1188" unit="m" value="20419.0">20, 419 m</elevation>
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, 22.11.05,
<collectionCode id="06D9B4A22D17427BFEB2FDC7FEA9FDF6" box="[256,303,518,542]" country="Australia" lsid="urn:lsid:biocol.org:col:35019" name="Queensland Museum" pageId="86" pageNumber="1188" type="Museum">QM</collectionCode>
<specimenCode id="306E841C2D17427BFE8AFDC7FE25FDF6" box="[312,419,518,542]" collectionCode="QM" country="Australia" lsid="urn:lsid:biocol.org:col:35019" name="Queensland Museum" pageId="86" pageNumber="1188" type="Museum">G328451</specimenCode>
).
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</paragraph>
<paragraph id="60772C672D17427BFF20FD96FE97FD87" blockId="86.[146,273,599,623]" box="[146,273,599,623]" pageId="86" pageNumber="1188">
<emphasis id="52BCF0752D17427BFF20FD96FE97FD87" box="[146,273,599,623]" italics="true" pageId="86" pageNumber="1188">Description</emphasis>
</paragraph>
<paragraph id="60772C672D17427BFF20FD41FDE4FCB2" blockId="86.[146,1103,640,858]" pageId="86" pageNumber="1188">
The newly recorded specimen is a solid, white, irregular sheet about
<quantity id="A73081822D17427BFC44FD41FBAEFD70" box="[1014,1064,640,664]" metricMagnitude="-2" metricUnit="m" metricValue="5.0" pageId="86" pageNumber="1188" unit="cm" value="5.0">5 cm</quantity>
in maximum dimension. Ripple marks are on the base of the colony probably as a result of the tightly packed spicules. Zooids are small, the thoraces comma-shaped, being reduced in diameter posteriorly. A fine, tapering retractor muscle projects from the oesophageal neck just posterior to the end of the thorax. Stellate spicules, crowded throughout, are to
<quantity id="A73081822D17427BFE6FFCE3FDBAFCD2" box="[477,572,802,826]" metricMagnitude="-5" metricUnit="m" metricValue="5.0" pageId="86" pageNumber="1188" unit="mm" value="0.05">0.05 mm</quantity>
diameter with 911 conical pointed or blunttipped rays in optical transverse section.
</paragraph>
<paragraph id="60772C672D17427BFF20FC52FF73FC43" blockId="86.[146,245,915,939]" box="[146,245,915,939]" pageId="86" pageNumber="1188">
<emphasis id="52BCF0752D17427BFF20FC52FF73FC43" box="[146,245,915,939]" italics="true" pageId="86" pageNumber="1188">Remarks</emphasis>
</paragraph>
<paragraph id="60772C672D17427BFF20FC7DFC83FBBD" blockId="86.[146,1103,956,1434]" pageId="86" pageNumber="1188">
The newly recorded specimen is larger than the
<typeStatus id="BF7392C52D17427BFD1FFC7DFC97FC3C" box="[685,785,956,980]" pageId="86" pageNumber="1188" type="syntype">syntypes</typeStatus>
, which are small colonies to
<quantity id="A73081822D17427BFF20FC1DFF5FFC1C" box="[146,217,988,1012]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="86" pageNumber="1188" unit="cm" value="0.5">0.5 cm</quantity>
in maximum dimension with spicule-filled surface papillae associated with each aperture. Other characters conform to the description of the types. Possibly the differences are the result of age or intraspecific variation over the extensive range represented by the two existing records of this species.
</paragraph>
<paragraph id="60772C672D17427BFF0FFB9FFD5DFA72" blockId="86.[146,1103,956,1434]" pageId="86" pageNumber="1188">
The comma-shaped thoraces are not unusual in this genus (see
<bibRefCitation id="045951962D17427BFC35FB9FFC78FB9E" author="Kott P" box="[903,1022,1118,1142]" pageId="86" pageNumber="1188" pagination="1 - 410" refId="ref56390" refString="Kott P. 2001. The Australian Ascidiacea Pt 4, Didemnidae. Memoirs of the Queensland Museum 47 (1): 1 - 410." type="journal article" year="2001">Kott 2001</bibRefCitation>
), being reported for
<taxonomicName id="A7C857E42D17427BFE97FBBEFD08FB7F" authority="Sluiter, 1909" authorityName="Sluiter" authorityYear="1909" box="[293,654,1151,1175]" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="membranaceum">
<emphasis id="52BCF0752D17427BFE97FBBEFE70FB7F" box="[293,502,1151,1175]" italics="true" pageId="86" pageNumber="1188">D. membranaceum</emphasis>
<bibRefCitation id="045951962D17427BFE4DFBBEFD08FB7F" author="Sluiter CP" box="[511,654,1151,1175]" pageId="86" pageNumber="1188" pagination="1 - 112" refId="ref57531" refString="Sluiter CP. 1909. Die Tunicaten der Siboga Expedition Pt. 2. Die merosomen Ascidien. Siboga Expeditie 56 B: 1 - 112." type="journal article" year="1909">Sluiter, 1909</bibRefCitation>
</taxonomicName>
(which differs from the present species in having characteristic giant spicules),
<taxonomicName id="A7C857E42D17427BFDCCFB61FC61FB5F" authority="Tokioka, 1954" authorityName="Tokioka" authorityYear="1954" box="[638,999,1183,1208]" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="granulatum">
<emphasis id="52BCF0752D17427BFDCCFB61FCAFFB50" box="[638,809,1184,1208]" italics="true" pageId="86" pageNumber="1188">D. granulatum</emphasis>
<bibRefCitation id="045951962D17427BFC8BFB5EFC61FB5F" author="Tokioka T" box="[825,999,1183,1207]" pageId="86" pageNumber="1188" pagination="239 - 264" refId="ref57578" refString="Tokioka T. 1954. Contributions to Japanese ascidian fauna VII. Invertebrate fauna of the intertidal zone of the Tokara Islands. VII Ascidians. Publications of the Seto Marine Biological Laboratory 3 (3): 239 - 264." type="journal article" year="1954">Tokioka, 1954</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="A7C857E42D17427BFB81FB61FE0BFB30" authority="Kott, 2001" authorityName="Kott" authorityYear="2001" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="perplexum">
<emphasis id="52BCF0752D17427BFB81FB61FE80FB30" italics="true" pageId="86" pageNumber="1188">D. perplexum</emphasis>
<bibRefCitation id="045951962D17427BFEA2FB01FE0BFB30" author="Kott P" box="[272,397,1216,1240]" pageId="86" pageNumber="1188" pagination="1 - 410" refId="ref56390" refString="Kott P. 2001. The Australian Ascidiacea Pt 4, Didemnidae. Memoirs of the Queensland Museum 47 (1): 1 - 410." type="journal article" year="2001">Kott, 2001</bibRefCitation>
</taxonomicName>
(both with larger spicules with fewer rays) and
<taxonomicName id="A7C857E42D17427BFC74FB01FE8AFB10" authority="Kott, 2001" authorityName="Kott" authorityYear="2001" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="delectum">
<emphasis id="52BCF0752D17427BFC74FB01FBC8FB30" box="[966,1102,1216,1240]" italics="true" pageId="86" pageNumber="1188">D. delectum</emphasis>
<bibRefCitation id="045951962D17427BFF20FB21FE8AFB10" author="Kott P" box="[146,268,1248,1272]" pageId="86" pageNumber="1188" pagination="1 - 410" refId="ref56390" refString="Kott P. 2001. The Australian Ascidiacea Pt 4, Didemnidae. Memoirs of the Queensland Museum 47 (1): 1 - 410." type="journal article" year="2001">Kott, 2001</bibRefCitation>
</taxonomicName>
(with same-sized spicules but with fewer and more rod-like rays than the conical rays of the present species). The spicule rays of the present species are shorter than the long, pointed rays of
<taxonomicName id="A7C857E42D17427BFE40FAE0FD32FAD1" authorityName="Kott" authorityYear="2008" box="[498,692,1313,1337]" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="multiampullae">
<emphasis id="52BCF0752D17427BFE40FAE0FD32FAD1" box="[498,692,1313,1337]" italics="true" pageId="86" pageNumber="1188">D. multiampullae</emphasis>
</taxonomicName>
and
<taxonomicName id="A7C857E42D17427BFD42FAE0FCD9FAD1" authorityName="Kott" authorityYear="2001" box="[752,863,1313,1337]" class="Ascidiacea" family="Didemnidae" genus="Didemnum" kingdom="Animalia" order="Aplousobranchia" pageId="86" pageNumber="1188" phylum="Chordata" rank="species" species="ossium">
<emphasis id="52BCF0752D17427BFD42FAE0FCD9FAD1" box="[752,863,1313,1337]" italics="true" pageId="86" pageNumber="1188">D. ossium</emphasis>
</taxonomicName>
and they have fewer rays. Kott (2005) recorded the diameter of the spicules of this species as
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, although spicules of that diameter were not detected in the present specimen. The spicules are otherwise characteristic of this species.
</paragraph>
</subSubSection>
</treatment>
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