254 lines
36 KiB
XML
254 lines
36 KiB
XML
<document id="0895D0BE064B68A056F7920173B28AAA" ID-DOI="10.11646/zootaxa.4019.1.20" ID-GBIF-Dataset="7f61a42e-fcb0-4935-9012-91995af21693" ID-ISSN="1175-5326" ID-Zenodo-Dep="243370" ID-ZooBank="9085D431-B770-46AF-95D7-7A9AFBBFD8D6" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461266382936" checkinUser="plazi" docAuthor="Parapar, Julio & Moreira, Juan" docDate="2015" docId="03F287BF5228DC674BFAFD96FEDDF876" docLanguage="en" docName="zt04019p620.pdf" docOrigin="Zootaxa 4019 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Owenia dichotoma Parapar & Moreira, 2015, n. sp." docType="treatment" docVersion="8" lastPageNumber="612" masterDocId="FFCBFFC7522FDC6F4B6DFF80FF89FFC1" masterDocTitle="The Oweniidae (Annelida; Polychaeta) from Lizard Island (Great Barrier Reef, Australia) with the description of two new species of Owenia Delle Chiaje, 1844" masterLastPageNumber="620" masterPageNumber="604" pageNumber="611" updateTime="1698610502781" updateUser="plazi">
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<mods:titleInfo id="53D10CAF62EFD30A71B5BB7DA8EEF7F2">
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<mods:title id="ACE54EA20D4FC228AE99EDD145744BF2">The Oweniidae (Annelida; Polychaeta) from Lizard Island (Great Barrier Reef, Australia) with the description of two new species of Owenia Delle Chiaje, 1844</mods:title>
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<mods:namePart id="357A37B5B49EEBCF32CF298CA20F516A">Parapar, Julio</mods:namePart>
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<mods:name id="9ADD40F17A0D1F5399EF7F6331DD18CE" type="personal">
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<mods:namePart id="9AE16AEE5D9D9707A1C0270F4B4E7BCF">Moreira, Juan</mods:namePart>
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<mods:typeOfResource id="9136DC1AC3D1BF1DAC56E0F8ED308A76">text</mods:typeOfResource>
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<mods:title id="FF26C0F7D0059872AE64DE39BE1CA855">Zootaxa</mods:title>
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<mods:part id="ACEBDC277A1AC624E7E34176C9BF265C">
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<mods:date id="14959B5E296DD6E8047071054BBE5992">2015</mods:date>
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<mods:detail id="73EB740D5B60A720858BFE7D80DFDC24" type="volume">
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<mods:number id="89A32135B8517F9ED775C682184868C9">4019</mods:number>
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<mods:identifier id="9C7329CD02FF3F669E2D6180E8A13C1A" type="DOI">10.11646/zootaxa.4019.1.20</mods:identifier>
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<mods:identifier id="FD5171C33E8C954F6C4AE942126F8B86" type="GBIF-Dataset">7f61a42e-fcb0-4935-9012-91995af21693</mods:identifier>
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<mods:identifier id="A467CA45625D4787D0D9714F29778AD6" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="7662BDA80A29499CDB3AB7C3F881C6AF" type="Zenodo-Dep">243370</mods:identifier>
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<mods:identifier id="92B732BDFC8ACBBE78A3C284A5560850" type="ZooBank">9085D431-B770-46AF-95D7-7A9AFBBFD8D6</mods:identifier>
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<treatment id="03F287BF5228DC674BFAFD96FEDDF876" ID-DOI="http://doi.org/10.5281/zenodo.6108175" ID-GBIF-Taxon="119637809" ID-Zenodo-Dep="6108175" LSID="urn:lsid:plazi:treatment:03F287BF5228DC674BFAFD96FEDDF876" httpUri="http://treatment.plazi.org/id/03F287BF5228DC674BFAFD96FEDDF876" lastPageId="8" lastPageNumber="612" pageId="7" pageNumber="611">
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<subSubSection id="C34165225228DC684BFAFD96FEDFFD90" pageId="7" pageNumber="611" type="nomenclature">
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<paragraph id="8BE436A95228DC684BFAFD96FE4DFDF1" blockId="7.[151,452,534,594]" box="[151,452,534,560]" pageId="7" pageNumber="611">
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<heading id="D0AC81C55228DC684BFAFD96FE4DFDF1" bold="true" box="[151,452,534,560]" fontSize="11" level="1" pageId="7" pageNumber="611" reason="1">
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<emphasis id="B92FEABB5228DC684BFAFD96FE4DFDF1" bold="true" box="[151,452,534,560]" pageId="7" pageNumber="611">
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<taxonomicName id="4C5B4D2A5228DC684BFAFD96FEF3FDF1" ID-CoL="75DJG" box="[151,378,534,560]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
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<emphasis id="B92FEABB5228DC684BFAFD96FEF3FDF1" bold="true" box="[151,378,534,560]" italics="true" pageId="7" pageNumber="611">Owenia dichotoma</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A21C57C05228DC684AECFD96FE4DFDF1" box="[385,452,534,560]" pageId="7" pageNumber="611" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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||
</paragraph>
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<paragraph id="8BE436A95228DC684BFAFDB9FEDFFD90" blockId="7.[151,452,534,594]" box="[151,342,569,594]" pageId="7" pageNumber="611">
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(
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<figureCitation id="13602A2C5228DC684BF2FDB9FF6BFD90" box="[159,226,569,594]" captionStart="FIGURE 1" captionStartId="2.[151,250,1819,1841]" captionTargetBox="[151,1436,193,1797]" captionTargetId="figure@2.[151,1436,193,1797]" captionTargetPageId="2" captionText="FIGURE 1. Map of the study area showing collecting sites of Galathowenia and Owenia species described or reported in this work. In (B − D) arrows facing to cross-shelf sampling sites: EI = Eagle Island; NDI = North Direction Island. Dots refer to material collected during LI Workshop held in August 2013; stars refer to AM material; white star refers to type locality of O. picta n. sp." httpUri="https://zenodo.org/record/243371/files/figure.png" pageId="7" pageNumber="611">Figs 1</figureCitation>
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C, 2, 6, 7)
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</paragraph>
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</subSubSection>
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<subSubSection id="C34165225228DC684BFAFD01FE14FD23" pageId="7" pageNumber="611" type="materials_examined">
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<paragraph id="8BE436A95228DC684BFAFD01FE14FD23" blockId="7.[151,1437,641,1962]" pageId="7" pageNumber="611">
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<emphasis id="B92FEABB5228DC684BFAFD01FE0AFD5B" bold="true" box="[151,387,641,666]" pageId="7" pageNumber="611">Material examined.</emphasis>
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<typeStatus id="54E0880B5228DC684AE0FD01FE73FD5B" box="[397,506,641,666]" pageId="7" pageNumber="611" type="holotype">Holotype</typeStatus>
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: AM W.45857, fine sediment,
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<specimenCount id="9D5DFD205228DC684832FD02FC28FD58" box="[863,929,642,666]" pageId="7" pageNumber="611" type="generic">
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<quantity id="4CA39B4C5228DC684832FD02FC14FD58" box="[863,925,642,666]" metricMagnitude="1" metricUnit="m" metricValue="1.2" pageId="7" pageNumber="611" unit="m" value="12.0">12 m</quantity>
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.
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</specimenCount>
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<typeStatus id="54E0880B5228DC6848C6FD02FB95FD5B" box="[939,1052,642,666]" pageId="7" pageNumber="611" type="paratype">Paratypes</typeStatus>
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: AM W.424, 2 m; AM W.45858, sand,
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<quantity id="4CA39B4C5228DC684BB6FD26FE82FD7C" box="[219,267,678,702]" metricMagnitude="0" metricUnit="m" metricValue="9.0" pageId="7" pageNumber="611" unit="m" value="9.0">9 m</quantity>
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; AM W.45859, fine sand,
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<quantity id="4CA39B4C5228DC684953FD26FDF5FD7C" box="[574,636,678,702]" metricMagnitude="1" metricUnit="m" metricValue="1.2" pageId="7" pageNumber="611" unit="m" value="12.0">12 m</quantity>
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; AM W.45861, medium sand,
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<quantity id="4CA39B4C5228DC68488DFD26FB99FD7C" box="[992,1040,678,702]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="7" pageNumber="611" unit="m" value="3.0">3 m</quantity>
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; AM W.47387, median abdominal fragment on SEM stub.
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</paragraph>
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</subSubSection>
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<subSubSection id="C34165225228DC684BAAFD6DFA9BF9DF" pageId="7" pageNumber="611" type="description">
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<paragraph id="8BE436A95228DC684BAAFD6DFBD6FB77" blockId="7.[151,1437,641,1962]" pageId="7" pageNumber="611">
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<emphasis id="B92FEABB5228DC684BAAFD6DFED0FCC7" bold="true" box="[199,345,749,774]" pageId="7" pageNumber="611">Description.</emphasis>
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Based on
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<typeStatus id="54E0880B5228DC684ABEFD6DFDB0FCC7" box="[467,569,749,774]" pageId="7" pageNumber="611" type="holotype">holotype</typeStatus>
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. Body elongated;
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<quantity id="4CA39B4C5228DC68486BFD6DFCDEFCC4" box="[774,855,749,774]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" pageId="7" pageNumber="611" unit="mm" value="16.0">16 mm</quantity>
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long, 1.0 mm wide, incomplete, with 9 chaetigers. Branchial crown very short; provided with four pairs of tentacles, each tentacle with larger ramification close to crown base thus appearing as if eight pairs of short tentacles present (
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<figureCitation id="13602A2C5228DC6848D0FCB5FB8AFC8F" box="[957,1027,821,846]" captionStart="FIGURE 6" captionStartId="8.[151,250,1571,1593]" captionTargetBox="[184,1423,196,1545]" captionTargetId="figure@8.[151,1436,193,1549]" captionTargetPageId="8" captionText="FIGURE 6. Owenia dichotoma n. sp. (A – B. holotype AM W. 45857; C – D. paratype AM W. 424). A. Anterior end, right dorsolateral view; B. Detail of the branchial crown and u 1, ventral view; C. Detail of the branchial crown and u 1, ventral view; D. Detail of the branchial crown, dorsal view." httpUri="https://zenodo.org/record/243376/files/figure.png" pageId="7" pageNumber="611">Fig. 6</figureCitation>
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A); second dichotomy very close to distal end. Total length of crown about 1/3 of thorax length (C/T ratio ≈ 0.33). A pair of very small eye spots located at the base of the crown (
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<figureCitation id="13602A2C5228DC684948FCFDFDE4FC57" box="[549,621,893,918]" captionStart="FIGURE 6" captionStartId="8.[151,250,1571,1593]" captionTargetBox="[184,1423,196,1545]" captionTargetId="figure@8.[151,1436,193,1549]" captionTargetPageId="8" captionText="FIGURE 6. Owenia dichotoma n. sp. (A – B. holotype AM W. 45857; C – D. paratype AM W. 424). A. Anterior end, right dorsolateral view; B. Detail of the branchial crown and u 1, ventral view; C. Detail of the branchial crown and u 1, ventral view; D. Detail of the branchial crown, dorsal view." httpUri="https://zenodo.org/record/243376/files/figure.png" pageId="7" pageNumber="611">Fig. 6</figureCitation>
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B). Junction between thorax and tentacle crown marked by a distinct, straight collar, closely aligned with body wall, slightly overlapping base of crown. Crown and thorax of similar width. RLTS: 1–2–1. Thorax with three pairs of poorly developed notopodia with capillary chaetae. Notochaetae with shafts composed of densely packed scales. Thoracic neuropodia absent. Width of each abdominal segment decreasing posteriorly, being posterior segments short and compact. Abdominal notopodia poorly developed with capillary chaetae similar to thoracic notochaetae. Abdominal notochaetae arranged dorsally. Neuropodia consisting of wide sessile podia with several rows of neurochaetal hooks; tori almost encircling body except on dorsal surface between notochaetal bundles. First abdominal segment (b1) slightly longer than total thoracic length. Neurochaetal uncini similar through, consisting of hooks with shaft ending in two teeth side by side.
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</paragraph>
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<paragraph id="8BE436A95228DC684BAAFB41FDA3FB3F" blockId="7.[151,1437,641,1962]" pageId="7" pageNumber="611">Preserved animals creamy white with no pigmentation. Tube coated by quartz grains and shell fragments piled on top of one another like roof tiles.</paragraph>
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<paragraph id="8BE436A95228DC684BAAFA89FA9BF9DF" blockId="7.[151,1437,641,1962]" pageId="7" pageNumber="611">
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<emphasis id="B92FEABB5228DC684BAAFA89FEC3FAE3" bold="true" box="[199,330,1289,1314]" pageId="7" pageNumber="611">Variations.</emphasis>
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The
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<typeStatus id="54E0880B5228DC684AEFFA89FE6DFAE3" box="[386,484,1289,1314]" pageId="7" pageNumber="611" type="holotype">holotype</typeStatus>
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and the
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<typeStatus id="54E0880B5228DC68492EFA8AFD2AFAE3" box="[579,675,1290,1314]" pageId="7" pageNumber="611" type="paratype">paratype</typeStatus>
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W.424 were the only specimens still having a well-preserved crown of tentacles (
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<figureCitation id="13602A2C5228DC684A45FAADFEE7FA87" box="[296,366,1325,1350]" captionStart="FIGURE 6" captionStartId="8.[151,250,1571,1593]" captionTargetBox="[184,1423,196,1545]" captionTargetId="figure@8.[151,1436,193,1549]" captionTargetPageId="8" captionText="FIGURE 6. Owenia dichotoma n. sp. (A – B. holotype AM W. 45857; C – D. paratype AM W. 424). A. Anterior end, right dorsolateral view; B. Detail of the branchial crown and u 1, ventral view; C. Detail of the branchial crown and u 1, ventral view; D. Detail of the branchial crown, dorsal view." httpUri="https://zenodo.org/record/243376/files/figure.png" pageId="7" pageNumber="611">Fig. 6</figureCitation>
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). This
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<typeStatus id="54E0880B5228DC684AD3FAAEFD97FA87" box="[446,542,1326,1350]" pageId="7" pageNumber="611" type="paratype">paratype</typeStatus>
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is a large incomplete specimen (
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<quantity id="4CA39B4C5228DC6848F9FAADFC6CFA84" box="[916,997,1325,1350]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" pageId="7" pageNumber="611" unit="mm" value="25.0">25 mm</quantity>
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long,
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<quantity id="4CA39B4C5228DC684F40FAAEFB0DFA84" box="[1069,1156,1326,1350]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="7" pageNumber="611" unit="mm" value="1.2">1.2 mm</quantity>
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wide, with 9 chaetigers) which shows more irregular ramifications on branchial crown (
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<figureCitation id="13602A2C5228DC684837FAD1FC12FAAB" box="[858,923,1361,1386]" captionStart="FIGURE 6" captionStartId="8.[151,250,1571,1593]" captionTargetBox="[184,1423,196,1545]" captionTargetId="figure@8.[151,1436,193,1549]" captionTargetPageId="8" captionText="FIGURE 6. Owenia dichotoma n. sp. (A – B. holotype AM W. 45857; C – D. paratype AM W. 424). A. Anterior end, right dorsolateral view; B. Detail of the branchial crown and u 1, ventral view; C. Detail of the branchial crown and u 1, ventral view; D. Detail of the branchial crown, dorsal view." httpUri="https://zenodo.org/record/243376/files/figure.png" pageId="7" pageNumber="611">Fig. 6</figureCitation>
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C–D) than those of the
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<typeStatus id="54E0880B5228DC684FCEFAD1FA8CFAAB" box="[1187,1285,1361,1386]" pageId="7" pageNumber="611" type="holotype">holotype</typeStatus>
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(
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<figureCitation id="13602A2C5228DC684E79FAD1FADEFAAB" box="[1300,1367,1361,1386]" captionStart="FIGURE 6" captionStartId="8.[151,250,1571,1593]" captionTargetBox="[184,1423,196,1545]" captionTargetId="figure@8.[151,1436,193,1549]" captionTargetPageId="8" captionText="FIGURE 6. Owenia dichotoma n. sp. (A – B. holotype AM W. 45857; C – D. paratype AM W. 424). A. Anterior end, right dorsolateral view; B. Detail of the branchial crown and u 1, ventral view; C. Detail of the branchial crown and u 1, ventral view; D. Detail of the branchial crown, dorsal view." httpUri="https://zenodo.org/record/243376/files/figure.png" pageId="7" pageNumber="611">Fig. 6</figureCitation>
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A–B). The
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<typeStatus id="54E0880B5228DC684BA6FAF6FEA5FA4F" box="[203,300,1398,1422]" pageId="7" pageNumber="611" type="paratype">paratype</typeStatus>
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W. 45858 is wider (
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||
<quantity id="4CA39B4C5228DC684978FAF6FDE7FA4F" box="[533,622,1398,1422]" metricMagnitude="-3" metricUnit="m" metricValue="1.3" pageId="7" pageNumber="611" unit="mm" value="1.3">1.3 mm</quantity>
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) than
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<typeStatus id="54E0880B5228DC6849DAFAF5FC90FA4F" box="[695,793,1397,1422]" pageId="7" pageNumber="611" type="holotype">holotype</typeStatus>
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and incomplete but still having 25 abdominal segments. On the other hand,
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<typeStatus id="54E0880B5228DC684A00FA1AFE44FA73" box="[365,461,1434,1458]" pageId="7" pageNumber="611" type="paratype">paratype</typeStatus>
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W.45861 is complete and showing the conspicuous decrease of the width of abdominal segments backwards, being posterior segments short and compact; it bears 22 abdominal segments and the pygidium is multilobed (ca. 6 lobes). Unfortunately, lack of specimens has led to use only one abdominal fragment for SEM study which allowed to study the morphology of chaetae but did not provide suitable images.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C34165225228DC674BAAF9A9FC0FF8AE" lastPageId="8" lastPageNumber="612" pageId="7" pageNumber="611" type="discussion">
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||
<paragraph id="8BE436A95228DC684BAAF9A9FBAFF8D8" blockId="7.[151,1437,641,1962]" pageId="7" pageNumber="611">
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||
<emphasis id="B92FEABB5228DC684BAAF9A9FEB2F983" bold="true" box="[199,315,1577,1602]" pageId="7" pageNumber="611">Remarks.</emphasis>
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The closest species to
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<taxonomicName id="4C5B4D2A5228DC68493DF9AAFD65F980" box="[592,748,1577,1601]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
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<emphasis id="B92FEABB5228DC68493DF9AAFD65F980" box="[592,748,1577,1601]" italics="true" pageId="7" pageNumber="611">O. dichotoma</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A21C57C05228DC68499AF9AAFCBEF980" box="[759,823,1578,1601]" pageId="7" pageNumber="611" rank="species">n. sp.</taxonomicNameLabel>
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are
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<taxonomicName id="4C5B4D2A5228DC684802F9AAFC7FF980" box="[879,1014,1578,1601]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="mirrawa">
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<emphasis id="B92FEABB5228DC684802F9AAFC7FF980" box="[879,1014,1578,1601]" italics="true" pageId="7" pageNumber="611">O. mirrawa</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C5B4D2A5228DC684F59F9AAFEB5F9A7" authority="Imajima & Morita (1987)" authorityName="Imajima & Morita" authorityYear="1987" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="fusiformis">
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<emphasis id="B92FEABB5228DC684F59F9AAFA9AF980" box="[1076,1299,1577,1601]" italics="true" pageId="7" pageNumber="611">O. fusiformis sensu</emphasis>
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<bibRefCitation id="EFCA4B585228DC684E73F9A9FEB5F9A7" author="Imajima" pageId="7" pageNumber="611" refString="Imajima, M. & Morita, Y. (1987) Oweniidae (Annelida, Polychaeta) from Japan. Bulletin of the National Science Museum, Series A, 13, 85 - 102. [Tokyo]" type="journal article" year="1987">Imajima & Morita (1987)</bibRefCitation>
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</taxonomicName>
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||
. The most remarkable character of
|
||
<taxonomicName id="4C5B4D2A5228DC6849B2F9CEFCF2F9A4" box="[735,891,1613,1637]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
|
||
<emphasis id="B92FEABB5228DC6849B2F9CEFCF2F9A4" box="[735,891,1613,1637]" italics="true" pageId="7" pageNumber="611">O. dichotoma</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A21C57C05228DC6848EBF9CEFC4FF9A4" box="[902,966,1614,1637]" pageId="7" pageNumber="611" rank="species">n. sp.</taxonomicNameLabel>
|
||
agrees with that highlighted by
|
||
<bibRefCitation id="EFCA4B585228DC684E2BF9CDFED5F94B" author="Ford" pageId="7" pageNumber="611" refString="Ford, E. & Hutchings, P. (2005) An analysis of morphological characters of Owenia useful to distinguish species: description of three new species of Owenia (Oweniidae: Polychaeta) from Australian waters. Marine Ecology, 26, 181 - 196. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.2005.00062. x" type="journal article" year="2005">Ford & Hutchings (2005)</bibRefCitation>
|
||
for
|
||
<taxonomicName id="4C5B4D2A5228DC684AE1F9F2FD99F948" box="[396,528,1650,1673]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="mirrawa">
|
||
<emphasis id="B92FEABB5228DC684AE1F9F2FD99F948" box="[396,528,1650,1673]" italics="true" pageId="7" pageNumber="611">O. mirrawa</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13602A2C5228DC68494DF9F1FDEDF94B" box="[544,612,1649,1674]" captionStart="FIGURE 7" captionStartId="9.[151,250,793,815]" captionTargetBox="[160,1420,198,763]" captionTargetId="figure@9.[151,1436,193,772]" captionTargetPageId="9" captionText="FIGURE 7. Anterior end in ventral view, of species of Owenia described or reported in the South East Asia and Australia, all redrawn from original; between brackets the collecting locality (A and B) or type locality (C – F). Organized alphabetically and by date. A. O. fusiformis (in Caullery 1944); B. O. fusiformis (in Imajima & Morita 1987); C. O. gomsoni (redrawn from a SEM micrograph in Koh & Bhaud 2001); D. O. australis (in Ford & Hutchings 2005); E. O. bassensis (in Ford & Hutchings 2005); F. O. mirrawa (in Ford & Hutchings 2005). O. petersenae Koh & Bhaud, 2003 was not included because it could not be redrawn from original pictures." httpUri="https://zenodo.org/record/243377/files/figure.png" pageId="7" pageNumber="611">Fig. 7</figureCitation>
|
||
F): “the most distinguishable character is positioning of the ramifications close to the base of the tentacles, giving the impression of many pairs of tentacles, much more than the four pairs present”. However, the ratio between the total length of the branchial crown and the total thorax length (C/T ratio: 0.6) of
|
||
<taxonomicName id="4C5B4D2A5228DC684B85F95EFEE2F934" box="[232,363,1758,1781]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="mirrawa">
|
||
<emphasis id="B92FEABB5228DC684B85F95EFEE2F934" box="[232,363,1758,1781]" italics="true" pageId="7" pageNumber="611">O. mirrawa</emphasis>
|
||
</taxonomicName>
|
||
is higher than that of
|
||
<taxonomicName id="4C5B4D2A5228DC684933F95EFD7FF934" box="[606,758,1757,1781]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
|
||
<emphasis id="B92FEABB5228DC684933F95EFD7FF934" box="[606,758,1757,1781]" italics="true" pageId="7" pageNumber="611">O. dichotoma</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A21C57C05228DC684990F95EFCB0F934" box="[765,825,1758,1781]" pageId="7" pageNumber="611" rank="species">n. sp.</taxonomicNameLabel>
|
||
(C/T ratio: 0.3). Furthermore,
|
||
<taxonomicName id="4C5B4D2A5228DC684FFCF95EFA9AF934" box="[1169,1299,1758,1781]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="mirrawa">
|
||
<emphasis id="B92FEABB5228DC684FFCF95EFA9AF934" box="[1169,1299,1758,1781]" italics="true" pageId="7" pageNumber="611">O. mirrawa</emphasis>
|
||
</taxonomicName>
|
||
bears fewer abdominal chaetigers (11) than those of
|
||
<typeStatus id="54E0880B5228DC684934F882FD30F8DB" box="[601,697,1794,1818]" pageId="7" pageNumber="611" type="paratype">paratype</typeStatus>
|
||
W.45861 of
|
||
<taxonomicName id="4C5B4D2A5228DC684827F882FC6BF8D8" box="[842,994,1793,1817]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
|
||
<emphasis id="B92FEABB5228DC684827F882FC6BF8D8" box="[842,994,1793,1817]" italics="true" pageId="7" pageNumber="611">O. dichotoma</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A21C57C05228DC684887F882FBAFF8D8" box="[1002,1062,1794,1817]" pageId="7" pageNumber="611" rank="species">n. sp.</taxonomicNameLabel>
|
||
</paragraph>
|
||
<paragraph id="8BE436A95228DC684BAAF8A5FA1EF86B" blockId="7.[151,1437,641,1962]" pageId="7" pageNumber="611">
|
||
The new species also resembles
|
||
<taxonomicName id="4C5B4D2A5228DC684957F8A6FBF4F8FF" authority="Imajima & Morita (1987)" authorityName="Imajima & Morita" authorityYear="1987" box="[570,1149,1829,1854]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="fusiformis">
|
||
<emphasis id="B92FEABB5228DC684957F8A6FCD9F8FC" box="[570,848,1829,1853]" italics="true" pageId="7" pageNumber="611">Owenia fusiformis sensu</emphasis>
|
||
<bibRefCitation id="EFCA4B585228DC684834F8A5FBF4F8FF" author="Imajima" box="[857,1149,1829,1854]" pageId="7" pageNumber="611" refString="Imajima, M. & Morita, Y. (1987) Oweniidae (Annelida, Polychaeta) from Japan. Bulletin of the National Science Museum, Series A, 13, 85 - 102. [Tokyo]" type="journal article" year="1987">Imajima & Morita (1987)</bibRefCitation>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13602A2C5228DC684FE3F8A5FB5BF8FF" box="[1166,1234,1829,1854]" captionStart="FIGURE 7" captionStartId="9.[151,250,793,815]" captionTargetBox="[160,1420,198,763]" captionTargetId="figure@9.[151,1436,193,772]" captionTargetPageId="9" captionText="FIGURE 7. Anterior end in ventral view, of species of Owenia described or reported in the South East Asia and Australia, all redrawn from original; between brackets the collecting locality (A and B) or type locality (C – F). Organized alphabetically and by date. A. O. fusiformis (in Caullery 1944); B. O. fusiformis (in Imajima & Morita 1987); C. O. gomsoni (redrawn from a SEM micrograph in Koh & Bhaud 2001); D. O. australis (in Ford & Hutchings 2005); E. O. bassensis (in Ford & Hutchings 2005); F. O. mirrawa (in Ford & Hutchings 2005). O. petersenae Koh & Bhaud, 2003 was not included because it could not be redrawn from original pictures." httpUri="https://zenodo.org/record/243377/files/figure.png" pageId="7" pageNumber="611">Fig. 7</figureCitation>
|
||
B) in the size and shape of the branchial crown. Thus, the crown of
|
||
<taxonomicName id="4C5B4D2A5228DC6849A8F8CAFB4DF8A3" authority="Imajima & Morita (1987)" authorityName="Imajima & Morita" authorityYear="1987" box="[709,1220,1865,1890]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="fusiformis">
|
||
<emphasis id="B92FEABB5228DC6849A8F8CAFC14F8A0" box="[709,925,1865,1889]" italics="true" pageId="7" pageNumber="611">O. fusiformis sensu</emphasis>
|
||
<bibRefCitation id="EFCA4B585228DC6848C9F8C9FB4DF8A3" author="Imajima" box="[932,1220,1865,1890]" pageId="7" pageNumber="611" refString="Imajima, M. & Morita, Y. (1987) Oweniidae (Annelida, Polychaeta) from Japan. Bulletin of the National Science Museum, Series A, 13, 85 - 102. [Tokyo]" type="journal article" year="1987">Imajima & Morita (1987)</bibRefCitation>
|
||
</taxonomicName>
|
||
shows a similar C/ T ratio and bears dichotomously branched tentacles; this species differs, however, from
|
||
<taxonomicName id="4C5B4D2A5228DC684FFBF8EEFABBF844" box="[1174,1330,1901,1925]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="7" pageNumber="611" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
|
||
<emphasis id="B92FEABB5228DC684FFBF8EEFABBF844" box="[1174,1330,1901,1925]" italics="true" pageId="7" pageNumber="611">O. dichotoma</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A21C57C05228DC684E51F8EEFAF5F844" box="[1340,1404,1902,1925]" pageId="7" pageNumber="611" rank="species">n. sp.</taxonomicNameLabel>
|
||
in having coloration both in the tentacles and in the dorsal anterior region (cfr.
|
||
<figureCitation id="13602A2C5228DC684880F811FBA4F86B" box="[1005,1069,1937,1962]" captionStart="FIGURE 2" captionStartId="3.[151,250,1209,1231]" captionTargetBox="[151,1436,193,1187]" captionTargetId="figure@3.[151,1436,193,1187]" captionTargetPageId="3" captionText="FIGURE 2. World map showing species of Galathowenia and Owenia described (grey circles) or reported (white circles) in East Asia, Australasia and nearby regions. 1. Grube (1878); 2. Augener (1922); 3. Augener (1926); 4. Caullery (1944); 5. Kirkegaard (1956); 6. Gallardo (1967); 7. Gibbs (1971); 8. Vohra (1972 in Tan & Chou 1993); 9. Hutchings & Rainer (1979); 10. Hartmann-Schröder (1979, 1980, 1981); 11. Hutchings & Murray (1984); 12. Imajima & Morita (1987), 13. Koh & Bhaud (2001); 14. Koh & Bhaud (2003); 15. Ford & Hutchings (2005); 16. Martin et al. (2006); 17. Capa et al. (2012); 18. Hutchings et al. (2014); 19. This study." httpUri="https://zenodo.org/record/243372/files/figure.png" pageId="7" pageNumber="611">Fig. 2</figureCitation>
|
||
b–c in
|
||
<bibRefCitation id="EFCA4B585228DC684F17F811FA02F86B" author="Imajima" box="[1146,1419,1937,1962]" pageId="7" pageNumber="611" refString="Imajima, M. & Morita, Y. (1987) Oweniidae (Annelida, Polychaeta) from Japan. Bulletin of the National Science Museum, Series A, 13, 85 - 102. [Tokyo]" type="journal article" year="1987">Imajima & Morita 1987</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="DF2466215227DC674BFAF9A3FDCEF9B7" httpUri="https://zenodo.org/record/243376/files/figure.png" pageId="8" pageNumber="612" targetBox="[184,1423,196,1545]" targetPageId="8">
|
||
<paragraph id="8BE436A95227DC674BFAF9A3FDCEF9B7" blockId="8.[151,1436,1571,1654]" pageId="8" pageNumber="612">
|
||
<emphasis id="B92FEABB5227DC674BFAF9A3FE9BF9F8" bold="true" box="[151,274,1571,1593]" pageId="8" pageNumber="612">FIGURE 6.</emphasis>
|
||
<taxonomicName id="4C5B4D2A5227DC674A74F9A4FE50F9F8" box="[281,473,1571,1593]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
|
||
<emphasis id="B92FEABB5227DC674A74F9A4FE50F9F8" box="[281,473,1571,1593]" italics="true" pageId="8" pageNumber="612">Owenia dichotoma</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A21C57C05227DC674A8DF9A4FD9FF9F8" box="[480,534,1572,1593]" pageId="8" pageNumber="612" rank="species">n. sp.</taxonomicNameLabel>
|
||
(A–B. holotype AM W.45857; C–D. paratype AM W.424). A. Anterior end, right dorsolateral view; B. Detail of the branchial crown and u1, ventral view; C. Detail of the branchial crown and u1, ventral view; D. Detail of the branchial crown, dorsal view.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BE436A95227DC674BAAF947FC0FF8AE" blockId="8.[151,1436,1735,1976]" pageId="8" pageNumber="612">
|
||
The Pacific species
|
||
<taxonomicName id="4C5B4D2A5227DC674AC3F948FC94F921" authority="Hartman, 1955" authorityName="Hartman" authorityYear="1955" box="[430,797,1735,1760]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="collaris">
|
||
<emphasis id="B92FEABB5227DC674AC3F948FDEDF91E" box="[430,612,1735,1759]" italics="true" pageId="8" pageNumber="612">Owenia collaris</emphasis>
|
||
<bibRefCitation id="EFCA4B585227DC674902F948FC94F921" author="Hartman" box="[623,797,1735,1760]" pageId="8" pageNumber="612" refString="Hartman, O. (1955) Endemism in the North Pacific Ocean, with emphasis on the distribution of marine annelids, and the descriptions of new or little known species. Essays in the Natural Sciences in Honor of Captain Allan Hancock. University of Southern California Press, Los Angeles, pp. 39 - 60." type="book chapter" year="1955">Hartman, 1955</bibRefCitation>
|
||
</taxonomicName>
|
||
, from Southern and Central California was recently redescribed and illustrated by
|
||
<bibRefCitation id="EFCA4B585227DC674AB0F96BFDFCF8C2" author="Blake" box="[477,629,1771,1796]" pageId="8" pageNumber="612" refString="Blake, J. A. (2000) Chapter 5. Family Oweniidae Rioja, 1917. In: Blake, J. A., Hilbig, B. & Scott, P. V. (Eds.), Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel. Vol. 7. The Annelida, Part 4: Polychaeta: Flabelligeridae to Sternaspidae. Santa Barbara Museum of Natural History, Santa Barbara, pp. 97 - 127." type="book chapter" year="2000">Blake (2000)</bibRefCitation>
|
||
; the species resembles somehow to
|
||
<taxonomicName id="4C5B4D2A5227DC674F7AF96BFB3BF8C2" box="[1047,1202,1771,1795]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="dichotoma" status="sp. nov.">
|
||
<emphasis id="B92FEABB5227DC674F7AF96BFB3BF8C2" box="[1047,1202,1771,1795]" italics="true" pageId="8" pageNumber="612">O. dichotoma</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A21C57C05227DC674FD1F96CFB73F8C2" box="[1212,1274,1772,1795]" pageId="8" pageNumber="612" rank="species">n. sp.</taxonomicNameLabel>
|
||
However, the former species seems closer to
|
||
<taxonomicName id="4C5B4D2A5227DC674A95F890FDF3F8E6" box="[504,634,1808,1831]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="gomsoni">
|
||
<emphasis id="B92FEABB5227DC674A95F890FDF3F8E6" box="[504,634,1808,1831]" italics="true" pageId="8" pageNumber="612">O. gomsoni</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="13602A2C5227DC6749E7F88FFD44F8E6" box="[650,717,1807,1832]" captionStart="FIGURE 7" captionStartId="9.[151,250,793,815]" captionTargetBox="[160,1420,198,763]" captionTargetId="figure@9.[151,1436,193,772]" captionTargetPageId="9" captionText="FIGURE 7. Anterior end in ventral view, of species of Owenia described or reported in the South East Asia and Australia, all redrawn from original; between brackets the collecting locality (A and B) or type locality (C – F). Organized alphabetically and by date. A. O. fusiformis (in Caullery 1944); B. O. fusiformis (in Imajima & Morita 1987); C. O. gomsoni (redrawn from a SEM micrograph in Koh & Bhaud 2001); D. O. australis (in Ford & Hutchings 2005); E. O. bassensis (in Ford & Hutchings 2005); F. O. mirrawa (in Ford & Hutchings 2005). O. petersenae Koh & Bhaud, 2003 was not included because it could not be redrawn from original pictures." httpUri="https://zenodo.org/record/243377/files/figure.png" pageId="8" pageNumber="612">Fig. 7</figureCitation>
|
||
C) and
|
||
<taxonomicName id="4C5B4D2A5227DC67484CF890FC2DF8E6" box="[801,932,1808,1831]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="mirrawa">
|
||
<emphasis id="B92FEABB5227DC67484CF890FC2DF8E6" box="[801,932,1808,1831]" italics="true" pageId="8" pageNumber="612">O. mirrawa</emphasis>
|
||
</taxonomicName>
|
||
according to the size of the branchial crown (C/T ratio: 0.5; see key below). In addition,
|
||
<taxonomicName id="4C5B4D2A5227DC6749CEF8B3FC97F88A" box="[675,798,1843,1867]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="collaris">
|
||
<emphasis id="B92FEABB5227DC6749CEF8B3FC97F88A" box="[675,798,1843,1867]" italics="true" pageId="8" pageNumber="612">O. collaris</emphasis>
|
||
</taxonomicName>
|
||
differs in the body pigmentation and in the pattern of ramification of the branchial crown (cfr. Fig. 5.9.A in
|
||
<bibRefCitation id="EFCA4B585227DC674998F8D7FCF3F8AE" author="Blake" box="[757,890,1879,1904]" pageId="8" pageNumber="612" refString="Blake, J. A. (2000) Chapter 5. Family Oweniidae Rioja, 1917. In: Blake, J. A., Hilbig, B. & Scott, P. V. (Eds.), Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel. Vol. 7. The Annelida, Part 4: Polychaeta: Flabelligeridae to Sternaspidae. Santa Barbara Museum of Natural History, Santa Barbara, pp. 97 - 127." type="book chapter" year="2000">Blake 2000</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C34165225227DC674BAAF8FBFEDDF876" pageId="8" pageNumber="612" type="etymology">
|
||
<paragraph id="8BE436A95227DC674BAAF8FBFEDDF876" blockId="8.[151,1436,1735,1976]" pageId="8" pageNumber="612">
|
||
<emphasis id="B92FEABB5227DC674BAAF8FBFEC7F855" bold="true" box="[199,334,1915,1940]" pageId="8" pageNumber="612">Etymology.</emphasis>
|
||
The species name (“
|
||
<taxonomicName id="4C5B4D2A5227DC674922F8FBFD4CF852" box="[591,709,1915,1939]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" order="Sabellida" pageId="8" pageNumber="612" phylum="Annelida" rank="species" species="dichotoma">
|
||
<emphasis id="B92FEABB5227DC674922F8FBFD4CF852" box="[591,709,1915,1939]" italics="true" pageId="8" pageNumber="612">dichotoma</emphasis>
|
||
</taxonomicName>
|
||
”) refers to the dichotomous divisions of the tentacles of the branchial crown.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |