203 lines
26 KiB
XML
203 lines
26 KiB
XML
<document id="8ED4AB38C1DE7BF6B449925CAA37E28F" ID-DOI="10.1080/00222930701359218" ID-ISSN="1464-5262" ID-Zenodo-Dep="4669578" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1617793898169" checkinUser="carolina" docAuthor="Kott, Patricia" docDate="2007" docId="191287F0FFF8FF91FE64FB319A1BC83A" docLanguage="en" docName="JNATHIST.41.17-20.1163-1211.pdf" docOrigin="Journal of Natural History 41 (17 - 20)" docSource="http://dx.doi.org/10.1080/00222930701359218" docStyle="DocumentStyle:5A9EB2ED5589A523F0236C66DE2A6BA8.4:JNatHist.2005-2007.journal_article.1cover" docStyleId="5A9EB2ED5589A523F0236C66DE2A6BA8" docStyleName="JNatHist.2005-2007.journal_article.1cover" docStyleVersion="4" docTitle="Trididemnum nebula Kott 2007, sp. nov." docType="treatment" docVersion="3" lastPageNumber="1196" masterDocId="E52BFF88FFD8FFB3FFAEFFAE9B77CB51" masterDocTitle="New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 4)" masterLastPageNumber="1211" masterPageNumber="1163" pageNumber="1194" updateTime="1698902273932" updateUser="plazi" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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<mods:mods id="1C714E5D3EF4D826A0A465BC8070C77D" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="6F6778EEB5659560B04DD58DE2CEB8A4">
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<mods:title id="BFF298A98F5A6CB6245FE1079B415B88">New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 4)</mods:title>
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</mods:titleInfo>
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<mods:name id="24D31EBF9C93F0E275C087B7A7578A06" type="personal">
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<mods:roleTerm id="29D14F2C8F4D6CCE6D26D41880C69CF1">Author</mods:roleTerm>
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<mods:namePart id="578F471072D360918EEFD68A2936764C">Kott, Patricia</mods:namePart>
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<mods:typeOfResource id="A49011F46CB7AC3DADB86277D3057A02">text</mods:typeOfResource>
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<mods:titleInfo id="201DC6D3BBA88ECF88970F8E1FBCD395">
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<mods:title id="B1DEF7945D7F3A0CF698537802A3C042">Journal of Natural History</mods:title>
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</mods:titleInfo>
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<mods:part id="A2F38F5FCD705E32907ADAE1DCBD3B20">
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<mods:date id="FA06F8E6F0877A4FBAD2FC4CC55A9159">2007</mods:date>
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<mods:detail id="D7CD310D5FF3AA6C22CC2AEDEAF52D99" type="pubDate">
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<mods:number id="8B19EC22D7A07625896172B659647FFB">2010-07-29</mods:number>
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</mods:detail>
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<mods:detail id="3D9EC0593C1A0DEBB742C8C5FAFD3FDE" type="volume">
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<mods:number id="5A252C39F465A078F894710280EE7856">41</mods:number>
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</mods:detail>
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<mods:detail id="93C6A6148D9052547ADF34106C367420" type="issue">
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<mods:number id="E561BFB3BF27096E0AEDA30266088A56">17 - 20</mods:number>
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</mods:detail>
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<mods:extent id="F778CFD0F0E0AF21FB71306573810151" unit="page">
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<mods:start id="1A10810E5311C34170AE788355FFB96E">1163</mods:start>
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<mods:end id="67551C7874DB1AF1E87FAD139680159B">1211</mods:end>
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<mods:location id="B31063CA04166E5E9969BA9E4FD1A3F5">
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<mods:url id="A23856060C59E8B02EAE684DC87B5CD4">http://dx.doi.org/10.1080/00222930701359218</mods:url>
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<mods:classification id="A52647109BC245C37A7864FC52B4EAFE">journal article</mods:classification>
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<mods:identifier id="963B49602D4B2976F297EEB3B5C753FB" type="DOI">10.1080/00222930701359218</mods:identifier>
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<mods:identifier id="6DFA06FF99D144A62F7283EC99AC83B0" type="ISSN">1464-5262</mods:identifier>
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<mods:identifier id="D4ECCD589A208C2A3015D8410AD0B2B9" type="Zenodo-Dep">4669578</mods:identifier>
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<treatment id="191287F0FFF8FF91FE64FB319A1BC83A" LSID="urn:lsid:plazi:treatment:191287F0FFF8FF91FE64FB319A1BC83A" httpUri="http://treatment.plazi.org/id/191287F0FFF8FF91FE64FB319A1BC83A" lastPageId="34" lastPageNumber="1196" pageId="32" pageNumber="1194">
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<subSubSection id="D9A1656DFFF8FF93FE64FB31983FCFE6" box="[458,840,1183,1207]" pageId="32" pageNumber="1194" type="nomenclature">
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<paragraph id="910436E6FFF8FF93FE64FB31983FCFE6" blockId="32.[458,840,1183,1239]" box="[458,840,1183,1207]" pageId="32" pageNumber="1194">
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<heading id="CA4C818AFFF8FF93FE64FB31983FCFE6" box="[458,840,1183,1207]" centered="true" fontSize="10" level="2" pageId="32" pageNumber="1194" reason="2">
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<taxonomicName id="56BB4D65FFF8FF93FE64FB319995CFE6" authority="Kott, 2007" authorityName="Kott" authorityYear="2007" box="[458,738,1183,1207]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="32" pageNumber="1194" phylum="Chordata" rank="species" species="nebula" status="sp. nov.">
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<emphasis id="A3CFEAF4FFF8FF93FE64FB319995CFE6" bold="true" box="[458,738,1183,1207]" italics="true" pageId="32" pageNumber="1194">Trididemnum nebula</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="B8FC578FFFF8FF93FD45FB31983FCFE6" box="[747,840,1183,1207]" pageId="32" pageNumber="1194" rank="species">sp. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="D9A1656DFFF8FF91FD9AFB119FE2C977" lastPageId="34" lastPageNumber="1196" pageId="32" pageNumber="1194" type="description">
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<paragraph id="910436E6FFF8FF93FD9AFB1199A9CF86" blockId="32.[458,840,1183,1239]" box="[564,734,1215,1239]" pageId="32" pageNumber="1194">
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(
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<figureCitation id="09802A63FFF8FF93FD92FB1199A2CF86" box="[572,725,1215,1239]" captionStart="Figure 5" captionStartId="33.[138,198,1030,1049]" captionTargetBox="[264,1057,135,992]" captionTargetId="figure-191@33.[262,1062,133,994]" captionTargetPageId="33" captionText="Figure 5. (A, B) Trididemnum nebula (QM G328001 syntype): (A) thorax; (B) larva. (C) Trididemnum titanium (QM G323351 holotype): colony. (D, E) Lissoclinum capsulatum (QM G308804 holotype): (D) thorax; (E) abdomen. Scale bars: 0.1 mm (A, B, D, E), 1 cm (C)." figureDoi="http://doi.org/10.5281/zenodo.4669592" httpUri="https://zenodo.org/record/4669592/files/figure.png" pageId="32" pageNumber="1194">Figure 5A, B</figureCitation>
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)
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</paragraph>
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<paragraph id="910436E6FFF8FF93FFD3FAA09B8ACE77" blockId="32.[125,253,1294,1318]" box="[125,253,1294,1318]" pageId="32" pageNumber="1194">
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<emphasis id="A3CFEAF4FFF8FF93FFD3FAA09B8ACE77" box="[125,253,1294,1318]" italics="true" pageId="32" pageNumber="1194">Distribution</emphasis>
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</paragraph>
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<paragraph id="910436E6FFF8FF93FFD3FA909FE3CE27" blockId="32.[125,1172,1342,1398]" pageId="32" pageNumber="1194">
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<materialsCitation id="21D33CBBFFF8FF93FFD3FA909FE7CE27" collectingDate="2006-02-17" collectionCode="QM" collectorName="Type & Lord Howe I. & Lagoon Beach & Aquenal" elevation="2" pageId="32" pageNumber="1194" specimenCode="G328001, G328002" specimenCount="1" typeStatus="syntype">
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<collectorName id="3C4E5330FFF8FF93FFD3FA909BCECE07" box="[125,185,1342,1366]" pageId="32" pageNumber="1194">Type</collectorName>
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location:
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<collectorName id="3C4E5330FFF8FF93FE99FA909A96CE07" box="[311,481,1342,1366]" pageId="32" pageNumber="1194">Lord Howe I.</collectorName>
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(
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<collectorName id="3C4E5330FFF8FF93FE5BFA9099D0CE07" box="[501,679,1342,1366]" pageId="32" pageNumber="1194">Lagoon Beach</collectorName>
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:
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<quantity id="56439B03FFF8FF93FD19FA90998CCE07" box="[695,763,1342,1366]" metricMagnitude="0" metricUnit="m" metricValue="1.5" pageId="32" pageNumber="1194" unit="m" value="1.5">
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<elevation id="1A96D1D5FFF8FF93FD19FA90998CCE07" box="[695,763,1342,1366]" metricMagnitude="0" metricUnit="m" metricValue="1.5" pageId="32" pageNumber="1194" unit="m" value="1.5">1.5 m</elevation>
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</quantity>
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, sandy bottom, coll.
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<collectorName id="3C4E5330FFF8FF93FBAFFA909F11CE07" box="[1025,1126,1342,1366]" pageId="32" pageNumber="1194">Aquenal</collectorName>
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,
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<date id="E5051026FFF8FF93FBD9FA909A5BCE27" pageId="32" pageNumber="1194" value="2006-02-17">
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<collectingDate id="F541E9CEFFF8FF93FBD9FA909A5BCE27" pageId="32" pageNumber="1194" value="2006-02-17">17 February 2006</collectingDate>
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</date>
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,
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<typeStatus id="4E008844FFF8FF93FE99FAF09AEECE27" box="[311,409,1374,1398]" pageId="32" pageNumber="1194" type="syntype">syntypes</typeStatus>
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<collectionCode id="F7AAAE23FFF8FF93FE0EFAF09AA7CE27" box="[416,464,1374,1398]" country="Australia" lsid="urn:lsid:biocol.org:col:35019" name="Queensland Museum" pageId="32" pageNumber="1194" type="Museum">QM</collectionCode>
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<specimenCode id="C11D9E9DFFF8FF93FE79FAF0993ECE27" box="[471,585,1374,1398]" collectionCode="QM" country="Australia" lsid="urn:lsid:biocol.org:col:35019" name="Queensland Museum" pageId="32" pageNumber="1194" type="Museum">G328001</specimenCode>
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; sheltered lagoon, boat ramp,
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<quantity id="56439B03FFF8FF93FC0AFAF098A6CE27" box="[932,977,1374,1398]" metricMagnitude="0" metricUnit="m" metricValue="2.0" pageId="32" pageNumber="1194" unit="m" value="2.0">
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<elevation id="1A96D1D5FFF8FF93FC0AFAF098A6CE27" box="[932,977,1374,1398]" metricMagnitude="0" metricUnit="m" metricValue="2.0" pageId="32" pageNumber="1194" unit="m" value="2.0">2 m</elevation>
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</quantity>
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,
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<collectionCode id="F7AAAE23FFF8FF93FC73FAF09F7ACE27" box="[989,1037,1374,1398]" country="Australia" lsid="urn:lsid:biocol.org:col:35019" name="Queensland Museum" pageId="32" pageNumber="1194" type="Museum">QM</collectionCode>
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<specimenCode id="C11D9E9DFFF8FF93FBBAFAF09FFECE27" box="[1044,1161,1374,1398]" collectionCode="QM" country="Australia" lsid="urn:lsid:biocol.org:col:35019" name="Queensland Museum" pageId="32" pageNumber="1194" type="Museum">G328002</specimenCode>
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)
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</materialsCitation>
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.
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</paragraph>
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<paragraph id="910436E6FFF8FF93FFD3FA009B82CE97" blockId="32.[125,245,1454,1478]" box="[125,245,1454,1478]" pageId="32" pageNumber="1194">
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<emphasis id="A3CFEAF4FFF8FF93FFD3FA009B82CE97" box="[125,245,1454,1478]" italics="true" pageId="32" pageNumber="1194">Description</emphasis>
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</paragraph>
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<paragraph id="910436E6FFF8FF93FFD3FA709F28CD04" blockId="32.[125,1172,1502,1685]" pageId="32" pageNumber="1194">
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Colonies are small (to
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<quantity id="56439B03FFF8FF93FE3EFA709AB1CEA7" box="[400,454,1502,1526]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="32" pageNumber="1194" unit="cm" value="2.0">2 cm</quantity>
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maximum diameter) soft, low cushions. The test is cloudy, a brownish colour in preservative. Spicules are in irregular thin patches in the surface test and line the floor of the thoracic common cloacal canals. They are globular, to
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<quantity id="56439B03FFF8FF93FB80F9B39FE3CD64" box="[1070,1172,1565,1589]" metricMagnitude="-5" metricUnit="m" metricValue="5.0" pageId="32" pageNumber="1194" unit="mm" value="0.05">0.05 mm</quantity>
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diameter. However, spicules are present only in some colonies, others are aspiculate.
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</paragraph>
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<paragraph id="910436E6FFF8FF92FF36F9F39805CE43" blockId="32.[125,1172,1502,1685]" lastBlockId="33.[138,1185,1146,1491]" lastPageId="33" lastPageNumber="1195" pageId="32" pageNumber="1194">Zooids are small, the thorax and abdomen about equal lengths. The branchial aperture is divided into six rounded, conspicuous lobes on a short branchial siphon. The atrial aperture is on a short siphon halfway down the thorax and directed horizontally. Although the exact number is obscured by contraction, about 10 stigmata per half row are in the three rows halfway down the pharynx. A strong, tapering retractor muscle of variable length projects from the top half of the oesophagus, but depending on the contraction of the zooid, it may appear to originate from the posterior end of the thorax.</paragraph>
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<caption id="C5C4666EFFF9FF92FF24FBA899F4CF1F" ID-DOI="http://doi.org/10.5281/zenodo.4669592" ID-Zenodo-Dep="4669592" httpUri="https://zenodo.org/record/4669592/files/figure.png" pageId="33" pageNumber="1195" startId="33.[138,198,1030,1049]" targetBox="[264,1057,135,992]" targetPageId="33">
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<paragraph id="910436E6FFF9FF92FF24FBA899F4CF1F" blockId="33.[138,1185,1030,1102]" pageId="33" pageNumber="1195">
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Figure 5. (A, B)
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<taxonomicName id="56BB4D65FFF9FF92FE81FBA89A92CF48" authorityName="Kott" authorityYear="2007" box="[303,485,1030,1049]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="33" pageNumber="1195" phylum="Chordata" rank="species" species="nebula">
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<emphasis id="A3CFEAF4FFF9FF92FE81FBA89A92CF48" box="[303,485,1030,1049]" italics="true" pageId="33" pageNumber="1195">Trididemnum nebula</emphasis>
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</taxonomicName>
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(QM G328001 syntype): (A) thorax; (B) larva. (C)
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<taxonomicName id="56BB4D65FFF9FF92FC74FBA89FD6CF48" authorityName="Kott" authorityYear="2007" box="[986,1185,1030,1049]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="33" pageNumber="1195" phylum="Chordata" rank="species" species="titanium">
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<emphasis id="A3CFEAF4FFF9FF92FC74FBA89FD6CF48" box="[986,1185,1030,1049]" italics="true" pageId="33" pageNumber="1195">Trididemnum titanium</emphasis>
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</taxonomicName>
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(QM G323351 holotype): colony. (D, E)
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<taxonomicName id="56BB4D65FFF9FF92FD87FB8E998DCF62" authorityName="Kott" authorityYear="2007" box="[553,762,1056,1075]" class="Ascidiacea" family="Didemnidae" genus="Lissoclinum" kingdom="Animalia" order="Enterogona" pageId="33" pageNumber="1195" phylum="Chordata" rank="species" species="capsulatum">
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<emphasis id="A3CFEAF4FFF9FF92FD87FB8E998DCF62" box="[553,762,1056,1075]" italics="true" pageId="33" pageNumber="1195">Lissoclinum capsulatum</emphasis>
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</taxonomicName>
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(QM G308804 holotype): (D) thorax; (E) abdomen. Scale bars: 0.1 mm (A, B, D, E), 1 cm (C).
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</paragraph>
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</caption>
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<paragraph id="910436E6FFF9FF92FF0BFAB59F44CE22" blockId="33.[138,1185,1146,1491]" pageId="33" pageNumber="1195">The gut forms an open loop slightly flexed ventrally over the undivided testis surrounded by eight coils of the vas deferens. The zooids are surrounded with black squamous epithelium, which obscures their structure. An endostylar cap was not detected.</paragraph>
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<paragraph id="910436E6FFF9FF92FF0BFAD299CECE82" blockId="33.[138,1185,1146,1491]" pageId="33" pageNumber="1195">
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Small, spherical larvae are being incubated in the basal test. The tail is wound threequarters of the way around the
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<quantity id="56439B03FFF9FF92FE5BFA35993BCEE2" box="[501,588,1435,1459]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="33" pageNumber="1195" unit="mm" value="0.4">0.4 mm</quantity>
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diameter trunk. Three lateral ampullae are on each side of the three anteromedian adhesive organs.
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</paragraph>
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<paragraph id="910436E6FFF9FF92FF24F9A29B9ECD75" blockId="33.[138,233,1548,1572]" box="[138,233,1548,1572]" pageId="33" pageNumber="1195">
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<emphasis id="A3CFEAF4FFF9FF92FF24F9A29B9ECD75" box="[138,233,1548,1572]" italics="true" pageId="33" pageNumber="1195">Remarks</emphasis>
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</paragraph>
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<paragraph id="910436E6FFF9FF91FF24F9939985CAD2" blockId="33.[138,1185,1597,1685]" lastBlockId="34.[125,1173,137,875]" lastPageId="34" lastPageNumber="1196" pageId="33" pageNumber="1195">
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Superficially, the small, soft, cloudy colonies resemble those of
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<taxonomicName id="56BB4D65FFF9FF92FC39F9939A7DCD24" authority="Kott, 1977" authorityName="Kott" authorityYear="1977" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="33" pageNumber="1195" phylum="Chordata" rank="species" species="miniatum">
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<emphasis id="A3CFEAF4FFF9FF92FC39F9939FD6CD04" box="[919,1185,1597,1621]" italics="true" pageId="33" pageNumber="1195">Trididemnum miniatum</emphasis>
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<bibRefCitation id="F52A4B17FFF9FF92FF24F9F39A7DCD24" author="Kott P" box="[138,266,1629,1653]" pageId="33" pageNumber="1195" pagination="615 - 621" refId="ref20992" refString="Kott P. 1977. Algal supporting didemnid ascidians of the Great Barrier Reef. In: Taylor DL, editor. Proceedings of the International Coral Reef Symposium, Miami: Uni. of Miami. Volume 1, Biology. p 615 - 621." type="book chapter" year="1977">Kott, 1977</bibRefCitation>
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</taxonomicName>
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and
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<taxonomicName id="56BB4D65FFF9FF92FEEBF9F09937CD24" authority="Kott, 1977" authorityName="Kott" authorityYear="1977" box="[325,576,1629,1653]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="33" pageNumber="1195" phylum="Chordata" rank="species" species="clinides">
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<emphasis id="A3CFEAF4FFF9FF92FEEBF9F09AC3CD24" box="[325,436,1629,1653]" italics="true" pageId="33" pageNumber="1195">T. clinides</emphasis>
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<bibRefCitation id="F52A4B17FFF9FF92FE12F9F39937CD24" author="Kott P" box="[444,576,1629,1653]" pageId="33" pageNumber="1195" pagination="615 - 621" refId="ref20992" refString="Kott P. 1977. Algal supporting didemnid ascidians of the Great Barrier Reef. In: Taylor DL, editor. Proceedings of the International Coral Reef Symposium, Miami: Uni. of Miami. Volume 1, Biology. p 615 - 621." type="book chapter" year="1977">Kott, 1977</bibRefCitation>
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</taxonomicName>
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. However, the cloudiness of the test is not indicative of embedded symbionts, nor are there any symbiotic cells in the common cloacal cavity, and the larval trunks lack the coat of the symbiotic cells present in the former two species. Further,
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<taxonomicName id="56BB4D65FFFAFF91FF49FF049A04CB90" authorityName="Kott" authorityYear="1977" box="[231,371,169,193]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="miniatum">
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<emphasis id="A3CFEAF4FFFAFF91FF49FF049A04CB90" box="[231,371,169,193]" italics="true" pageId="34" pageNumber="1196">T. miniatum</emphasis>
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</taxonomicName>
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has a sessile atrial aperture rather than the laterally orientated atrial siphon of the present species and it has smaller spicules.
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<taxonomicName id="56BB4D65FFFAFF91FCA2FF679F0CCBB0" authority="Kott, 1977" authorityName="Kott" authorityYear="1977" box="[780,1147,201,225]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="clinides">
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<emphasis id="A3CFEAF4FFFAFF91FCA2FF679882CBB0" box="[780,1013,201,225]" italics="true" pageId="34" pageNumber="1196">Trididemnum clinides</emphasis>
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<bibRefCitation id="F52A4B17FFFAFF91FC52FF679F0CCBB0" author="Kott P" box="[1020,1147,201,225]" pageId="34" pageNumber="1196" pagination="615 - 621" refId="ref20992" refString="Kott P. 1977. Algal supporting didemnid ascidians of the Great Barrier Reef. In: Taylor DL, editor. Proceedings of the International Coral Reef Symposium, Miami: Uni. of Miami. Volume 1, Biology. p 615 - 621." type="book chapter" year="1977">Kott, 1977</bibRefCitation>
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</taxonomicName>
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is distinguished by its large spicules. Species that, like the present one, have a small midthoracic, horizontal atrial siphon, three pairs of larval lateral ampullae, black squamous epithelium, 10 or more stigmata per half row, and eight coils of the vas deferens are
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<taxonomicName id="56BB4D65FFFAFF91FBD4FE859ADECA32" authority="Herdman, 1906" authorityName="Herdman" authorityYear="1906" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="areolatum">
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<emphasis id="A3CFEAF4FFFAFF91FBD4FE859B9ECA32" italics="true" pageId="34" pageNumber="1196">T. areolatum</emphasis>
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<bibRefCitation id="F52A4B17FFFAFF91FF5EFEE59ADECA32" author="Herdman WA" box="[240,425,331,355]" pageId="34" pageNumber="1196" pagination="295 - 348" refId="ref20899" refString="Herdman WA. 1906. Report on the Tunicata. Ceylon Pearl Oyster Fisheries Supplementary Reports 39: 295 - 348." type="journal article" year="1906">Herdman, 1906</bibRefCitation>
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</taxonomicName>
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(distinguished by its large stellate spicules) and
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<taxonomicName id="56BB4D65FFFAFF91FC61FEE29BCFCAD2" authority="Kott, 2001" authorityName="Kott" authorityYear="2001" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="caelatum">
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<emphasis id="A3CFEAF4FFFAFF91FC61FEE29F27CA32" box="[975,1104,331,355]" italics="true" pageId="34" pageNumber="1196">T. caelatum</emphasis>
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<bibRefCitation id="F52A4B17FFFAFF91FBF9FEE59BCFCAD2" author="Kott P" pageId="34" pageNumber="1196" pagination="1 - 410" refId="ref21062" refString="Kott P. 2001. The Australian Ascidiacea Pt 4, Didemnidae. Memoirs of the Queensland Museum 47: 1 - 410." type="journal article" year="2001">Kott, 2001</bibRefCitation>
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</taxonomicName>
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(also distinguished by its large stellate spicules).
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</paragraph>
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<paragraph id="910436E6FFFAFF91FF36FE229FE2C977" blockId="34.[125,1173,137,875]" pageId="34" pageNumber="1196">
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Spicule distribution, the vas deferens and atrial siphon in
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<taxonomicName id="56BB4D65FFFAFF91FCE3FE239F11CAF5" authority="Kott, 2004 a" authorityName="Kott" authorityYear="2004" box="[845,1126,396,420]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="pusillum">
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<emphasis id="A3CFEAF4FFFAFF91FCE3FE2398BACAF5" box="[845,973,396,420]" italics="true" pageId="34" pageNumber="1196">T. pusillum</emphasis>
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<bibRefCitation id="F52A4B17FFFAFF91FC79FE229F11CAF5" author="Kott P" box="[983,1126,396,420]" pageId="34" pageNumber="1196" pagination="731 - 774" refId="ref21123" refString="Kott P. 2004 a. New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 1). Journal of Natural History 38: 731 - 774." type="journal article" year="2004">Kott, 2004a</bibRefCitation>
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</taxonomicName>
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are similar to the present species. Further, although
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<bibRefCitation id="F52A4B17FFFAFF91FD11FE03982DCA94" author="Kott P" box="[703,858,429,453]" pageId="34" pageNumber="1196" pagination="731 - 774" refId="ref21123" refString="Kott P. 2004 a. New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 1). Journal of Natural History 38: 731 - 774." type="journal article" year="2004">Kott (2004a)</bibRefCitation>
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remarks that larvae for
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<taxonomicName id="56BB4D65FFFAFF91FBD4FE039BAFCAB4" authorityName="Kott" authorityYear="2004" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="pusillum">
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<emphasis id="A3CFEAF4FFFAFF91FBD4FE039BAFCAB4" italics="true" pageId="34" pageNumber="1196">T. pusillum</emphasis>
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</taxonomicName>
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are not known, a larva from the
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<typeStatus id="4E008844FFFAFF91FDE3FE6399C6CAB4" box="[589,689,461,485]" pageId="34" pageNumber="1196" type="holotype">holotype</typeStatus>
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is shown in
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<bibRefCitation id="F52A4B17FFFAFF91FC91FE6398A7CAB4" author="Kott P" box="[831,976,461,485]" pageId="34" pageNumber="1196" pagination="731 - 774" refId="ref21123" refString="Kott P. 2004 a. New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 1). Journal of Natural History 38: 731 - 774." type="journal article" year="2004">Kott (2004a</bibRefCitation>
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, Figure 18d) and this also is similar to the present species. Despite these similarities, these species are distinguished by their spicules, which, in
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<taxonomicName id="56BB4D65FFFAFF91FDF6FDA199A3C977" authorityName="Kott" authorityYear="2004" box="[600,724,526,550]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="pusillum">
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<emphasis id="A3CFEAF4FFFAFF91FDF6FDA199A3C977" box="[600,724,526,550]" italics="true" pageId="34" pageNumber="1196">T. pusillum</emphasis>
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</taxonomicName>
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, have relatively few pointed spiky rays.
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</paragraph>
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</subSubSection>
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<subSubSection id="D9A1656DFFFAFF91FF36FD819A1BC83A" pageId="34" pageNumber="1196" type="reference_group">
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<paragraph id="910436E6FFFAFF91FF36FD8198F9C998" blockId="34.[125,1173,137,875]" pageId="34" pageNumber="1196">
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In
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<taxonomicName id="56BB4D65FFFAFF91FF15FD9E9AC2C916" authority="Kott, 2001" authorityName="Kott" authorityYear="2001" box="[187,437,559,583]" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="tectum">
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<emphasis id="A3CFEAF4FFFAFF91FF15FD9E9A51C916" box="[187,294,560,583]" italics="true" pageId="34" pageNumber="1196">T. tectum</emphasis>
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<bibRefCitation id="F52A4B17FFFAFF91FE9EFD819AC2C916" author="Kott P" box="[304,437,559,583]" pageId="34" pageNumber="1196" pagination="1 - 410" refId="ref21062" refString="Kott P. 2001. The Australian Ascidiacea Pt 4, Didemnidae. Memoirs of the Queensland Museum 47: 1 - 410." type="journal article" year="2001">Kott, 2001</bibRefCitation>
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</taxonomicName>
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, globular spicules are in the same position, in the floor of the cloacal cavity, as the present species, but spicules and zooids are larger, zooids have fewer coils of the vas deferens and the larvae have more lateral ampullae.
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<taxonomicName id="56BB4D65FFFAFF91FCD6FDDE9BCFC9F9" authority="Kott, 2001" authorityName="Kott" authorityYear="2001" class="Ascidiacea" family="Didemnidae" genus="Trididemnum" kingdom="Animalia" order="Enterogona" pageId="34" pageNumber="1196" phylum="Chordata" rank="species" species="nobile">
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<emphasis id="A3CFEAF4FFFAFF91FCD6FDDE9F27C9D9" box="[888,1104,624,648]" italics="true" pageId="34" pageNumber="1196">Trididemnum nobile</emphasis>
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<bibRefCitation id="F52A4B17FFFAFF91FBF9FDDE9BCFC9F9" author="Kott P" pageId="34" pageNumber="1196" pagination="1 - 410" refId="ref21062" refString="Kott P. 2001. The Australian Ascidiacea Pt 4, Didemnidae. Memoirs of the Queensland Museum 47: 1 - 410." type="journal article" year="2001">Kott, 2001</bibRefCitation>
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</taxonomicName>
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is occasionally aspiculate, has a similar (but larger) larval trunk, a posteriorly orientated atrial siphon and its spicules (when present) are stellate.
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</paragraph>
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<paragraph id="910436E6FFFAFF91FF36FD7F9A1BC83A" blockId="34.[125,1173,137,875]" pageId="34" pageNumber="1196">The present species, with its small soft cloudy colonies, occasional small globular spicules around the common cloacal cavity, black squamous epithelium, horizontally orientated atrial siphon, small zooids with relatively numerous vas deferens coils and stigmata, and small larvae with three pairs of lateral ampullae appears to be a previously undescribed species.</paragraph>
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</subSubSection>
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</treatment>
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</document> |