202 lines
26 KiB
XML
202 lines
26 KiB
XML
<document id="531BED62354F28CF7C033134FCECAE5F" ID-DOI="10.1111/zoj.12137" ID-ISSN="0024-4082" ID-Zenodo-Dep="5306486" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630112844916" checkinUser="marcus" docAuthor="Cruz-Barraza, José Antonio, Vega, Cristina & Carballo, José Luis" docDate="2014" docId="4617186BFFACFF84FC8DEC75FC443DA2" docLanguage="en" docName="zoj12137.pdf" docOrigin="Zoological Journal of the Linnean Society 171 (2)" docSource="http://dx.doi.org/10.1111/zoj.12137" docStyle="DocumentStyle:FBF0BF18BB2B256F1F8008F27D80BF37.3:ZoolJLinnSoc.2010-2016.journal_article" docStyleId="FBF0BF18BB2B256F1F8008F27D80BF37" docStyleName="ZoolJLinnSoc.2010-2016.journal_article" docStyleVersion="3" docTitle="Plakinastrella clippertonensis van Soest 2011" docType="treatment" docVersion="4" lastPageNumber="270" masterDocId="BA2E6013FFA3FF94FFC1ED03FF953D58" masterDocTitle="Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox 1 and cob mtDNA data" masterLastPageNumber="276" masterPageNumber="254" pageNumber="269" updateTime="1699155998675" updateUser="plazi">
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<mods:title id="3EFC0C9E5D7700C7411A6A513CEA590C">Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox 1 and cob mtDNA data</mods:title>
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<mods:namePart id="41E8729ECA5FC126C8D6806579A77BB8">Cruz-Barraza, José Antonio</mods:namePart>
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<mods:namePart id="6EE86A7AAF9D84619EC24D6FC2BF1EC5">Vega, Cristina</mods:namePart>
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<mods:namePart id="6CC2F3BE0C6BD96519E8AAECE5F4E668">Carballo, José Luis</mods:namePart>
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<mods:title id="36F0553CE6E5E4EAAE6C6ACD1C655D7A">Zoological Journal of the Linnean Society</mods:title>
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<mods:part id="75079B962A290B77971684E1DF779CE0">
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<mods:date id="F36E7568912C3A87FC4B2797D824E4EE">2014</mods:date>
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<treatment id="4617186BFFACFF84FC8DEC75FC443DA2" ID-DOI="http://doi.org/10.5281/zenodo.5313949" ID-Zenodo-Dep="5313949" LSID="urn:lsid:plazi:treatment:4617186BFFACFF84FC8DEC75FC443DA2" httpUri="http://treatment.plazi.org/id/4617186BFFACFF84FC8DEC75FC443DA2" lastPageId="16" lastPageNumber="270" pageId="15" pageNumber="269">
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<subSubSection id="86A4FAF6FFACFF9BFC8DEC75FAAD3CF2" pageId="15" pageNumber="269" type="nomenclature">
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<paragraph id="CE01A97DFFACFF9BFC8DEC75FAAD3CF2" blockId="15.[844,1384,373,426]" pageId="15" pageNumber="269">
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<heading id="95491E11FFACFF9BFC8DEC75FAAD3CF2" centered="true" fontSize="8" level="2" pageId="15" pageNumber="269" reason="8">
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<taxonomicName id="09BED2FEFFACFF9BFC8DEC75FB3C3CF2" ID-CoL="4JHZ2" authority="VAN SOEST, KAISER & VAN SYOC, 2011" authorityName="van Soest" authorityYear="2011" class="Homoscleromorpha" family="Plakinidae" genus="Plakinastrella" kingdom="Animalia" order="Homosclerophorida" pageId="15" pageNumber="269" phylum="Porifera" rank="species" species="clippertonensis">
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<emphasis id="FCCA756FFFACFF9BFC8DEC75FB753CD1" box="[844,1248,374,395]" italics="true" pageId="15" pageNumber="269">PLAKINASTRELLA CLIPPERTONENSIS</emphasis>
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<bibRefCitation id="AA2FD48CFFACFF9BFB29EC7AFB3C3CF2" author="van Soest RWM & Kaiser KL & van Syoc R" pageId="15" pageNumber="269" pagination="1 - 46" refId="ref17279" refString="van Soest RWM, Kaiser KL, van Syoc R. 2011. Sponges from Clipperton Island, East Pacific. Zootaxa 2839: 1 - 46." type="journal article" year="2011">VAN SOEST, KAISER & VAN SYOC, 2011</bibRefCitation>
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</taxonomicName>
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(
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<figureCitation id="5685B5F8FFACFF9BFB7BEC96FA803CF2" box="[1210,1301,405,426]" captionStart="Figure 2" captionStartId="5.[144,223,1451,1470]" captionTargetBox="[271,1296,194,1422]" captionTargetId="figure-149@5.[271,1296,194,1422]" captionTargetPageId="5" captionText="Figure 2. External morphologies of plakinid species from the eastern Pacific. A, B, Plakina muricyae sp. nov. C, i, Plakina paradilopha sp. nov.; ii, Plakina muricyae sp. nov. D, Plakortis clarionensis sp. nov. E, Plakortis albicans Cruz-Barraza & Carballo, 2005. F, Plakinastrella clippertonensis van Soest et al., 2011." figureDoi="http://doi.org/10.5281/zenodo.5306492" httpUri="https://zenodo.org/record/5306492/files/figure.png" pageId="15" pageNumber="269">FIGS 2F</figureCitation>
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,
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<figureCitation id="5685B5F8FFACFF9BFAE3EC96FAA53CF2" box="[1314,1328,405,426]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="15" pageNumber="269">7</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="86A4FAF6FFACFF84FCE7ECB8FC443DA2" lastPageId="16" lastPageNumber="270" pageId="15" pageNumber="269" type="materials_examined">
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<paragraph id="CE01A97DFFACFF9BFCE7ECB8FC683C88" blockId="15.[806,1421,443,527]" box="[806,1021,443,464]" pageId="15" pageNumber="269">
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<emphasis id="FCCA756FFFACFF9BFCE7ECB8FC683C88" box="[806,1021,443,464]" italics="true" pageId="15" pageNumber="269">Material examined</emphasis>
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</paragraph>
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<paragraph id="CE01A97DFFACFF9BFCE7ECD9FB453F57" blockId="15.[806,1421,443,527]" pageId="15" pageNumber="269">
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<materialsCitation id="7ED6A320FFACFF9BFCE7ECD9FB593F57" collectingDate="2005-02-28" country="Clipperton Island" elevation="14" latitude="10.291667" location="Clipperton Island" longLatPrecision="21" longitude="-109.24972" pageId="15" pageNumber="269" specimenCount="1">
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LEB-ICML-UNAM-2034,
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<collectingCountry id="B6A9E9EDFFACFF9BFB81ECD9FA973CA8" box="[1088,1282,474,496]" name="Clipperton Island" pageId="15" pageNumber="269">Clipperton Island</collectingCountry>
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,
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<geoCoordinate id="AB8ACFBAFFACFF9BFACCECD9FA1C3CA8" box="[1293,1417,474,496]" degrees="10" direction="north" minutes="17" orientation="latitude" pageId="15" pageNumber="269" precision="15" seconds="30" value="10.291667">10°17′30″N</geoCoordinate>
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,
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<geoCoordinate id="AB8ACFBAFFACFF9BFCE7ECFAFC2C3F56" box="[806,953,504,527]" degrees="109" direction="west" minutes="14" orientation="longitude" pageId="15" pageNumber="269" precision="15" seconds="59" value="-109.24972">109°14′59″W</geoCoordinate>
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,
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<elevation id="45934E4EFFACFF9BFC07ECFAFBD93F57" box="[966,1100,505,527]" metricMagnitude="1" metricUnit="m" metricValue="1.4" pageId="15" pageNumber="269" unit="m" value="14.0">
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<quantity id="09460498FFACFF9BFC07ECFAFC6B3F56" box="[966,1022,505,526]" metricMagnitude="1" metricUnit="m" metricValue="1.4" pageId="15" pageNumber="269" unit="m" value="14.0">14 m</quantity>
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depth
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</elevation>
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,
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<date id="BA008FBDFFACFF9BFB9BECFAFB593F57" box="[1114,1228,505,527]" pageId="15" pageNumber="269" value="2005-02-28">
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<collectingDate id="AA447655FFACFF9BFB9BECFAFB593F57" box="[1114,1228,505,527]" pageId="15" pageNumber="269" value="2005-02-28">28.ii.2005</collectingDate>
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</date>
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</materialsCitation>
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.
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</paragraph>
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<paragraph id="CE01A97DFFACFF9BFCE7EF3CFC323F0C" blockId="15.[806,1421,575,811]" box="[806,935,575,596]" pageId="15" pageNumber="269">
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<emphasis id="FCCA756FFFACFF9BFCE7EF3CFC323F0C" box="[806,935,575,596]" italics="true" pageId="15" pageNumber="269">Description</emphasis>
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</paragraph>
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<paragraph id="CE01A97DFFACFF84FCE7EF5EFEE03DA2" blockId="15.[806,1421,575,811]" lastBlockId="16.[164,779,198,862]" lastPageId="16" lastPageNumber="270" pageId="15" pageNumber="269">
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Encrusting to cushion-shaped sponge (
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||
<quantity id="09460498FFACFF9BFB1AEF5EFAA43F2B" box="[1243,1329,605,627]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="15" pageNumber="269" unit="mm" value="0.5">0.5 mm</quantity>
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to up to
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<quantity id="09460498FFACFF9BFCE7EF7FFCCF3FC9" box="[806,858,636,657]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="15" pageNumber="269" unit="cm" value="1.0">1 cm</quantity>
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thick), covering an area of 8.4 ×
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<quantity id="09460498FFACFF9BFB7BEF7FFA903FC9" box="[1210,1285,636,658]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="15" pageNumber="269" unit="cm" value="3.5">3.5 cm</quantity>
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. The surface is smooth to the naked eye, but rugose under the stereoscope. It also possesses homogeneously distributed subectosomal spaces (
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<figureCitation id="5685B5F8FFACFF9BFB8EEFDBFB373FB6" box="[1103,1186,728,750]" captionStart="Figure 2" captionStartId="5.[144,223,1451,1470]" captionTargetBox="[271,1296,194,1422]" captionTargetId="figure-149@5.[271,1296,194,1422]" captionTargetPageId="5" captionText="Figure 2. External morphologies of plakinid species from the eastern Pacific. A, B, Plakina muricyae sp. nov. C, i, Plakina paradilopha sp. nov.; ii, Plakina muricyae sp. nov. D, Plakortis clarionensis sp. nov. E, Plakortis albicans Cruz-Barraza & Carballo, 2005. F, Plakinastrella clippertonensis van Soest et al., 2011." figureDoi="http://doi.org/10.5281/zenodo.5306492" httpUri="https://zenodo.org/record/5306492/files/figure.png" pageId="15" pageNumber="269">Fig. 2F</figureCitation>
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). Oscula are circularshaped and slightly elevated from the surface, measuring
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<quantity id="09460498FFACFF9BFC67EE16FBD43E72" box="[934,1089,789,811]" metricMagnitude="-4" metricUnit="m" metricValue="3.5" metricValueMax="5.0" metricValueMin="2.0" pageId="15" pageNumber="269" unit="mm" value="0.35" valueMax="0.5" valueMin="0.2">0.2 to 0.5 mm</quantity>
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in diameter. The consistency is compressible but fragile. The colour is beige in preserved specimens.
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</paragraph>
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<caption id="9AC1F9F5FFACFF9BFF51EA23FE803A36" ID-DOI="http://doi.org/10.5281/zenodo.5306506" ID-Zenodo-Dep="5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="15" pageNumber="269" startId="15.[144,223,1824,1843]" targetBox="[303,1263,866,1794]" targetPageId="15">
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<paragraph id="CE01A97DFFACFF9BFF51EA23FE803A36" blockId="15.[144,1422,1824,1902]" pageId="15" pageNumber="269">
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<emphasis id="FCCA756FFFACFF9BFF51EA23FF6D3A6B" bold="true" box="[144,248,1824,1843]" pageId="15" pageNumber="269">Figure 7.</emphasis>
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Scanning electron microscopy images of spicules and skeletal structure of
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<taxonomicName id="09BED2FEFFACFF9BFBE5EA23FED33A08" authority="van Soest et al., 2011" authorityName="van Soest" authorityYear="2011" class="Homoscleromorpha" family="Plakinidae" genus="Plakinastrella" kingdom="Animalia" order="Homosclerophorida" pageId="15" pageNumber="269" phylum="Porifera" rank="species" species="clippertonensis">
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<emphasis id="FCCA756FFFACFF9BFBE5EA23FACB3A6B" box="[1060,1374,1824,1843]" italics="true" pageId="15" pageNumber="269">Plakinastrella clippertonensis</emphasis>
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<bibRefCitation id="AA2FD48CFFACFF9BFAA6EA23FED33A08" author="van Soest RWM & Kaiser KL & van Syoc R" pageId="15" pageNumber="269" pagination="1 - 46" refId="ref17279" refString="van Soest RWM, Kaiser KL, van Syoc R. 2011. Sponges from Clipperton Island, East Pacific. Zootaxa 2839: 1 - 46." type="journal article" year="2011">
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van Soest
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<emphasis id="FCCA756FFFACFF9BFF11EA3DFF683A08" box="[208,253,1853,1872]" italics="true" pageId="15" pageNumber="269">et al</emphasis>
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., 2011
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</bibRefCitation>
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</taxonomicName>
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. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome.
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</paragraph>
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</caption>
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<paragraph id="CE01A97DFFB3FF84FF7DEC00FDD03F12" blockId="16.[164,779,198,862]" pageId="16" pageNumber="270">
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<emphasis id="FCCA756FFFB3FF84FF7DEC00FE8D3C40" box="[188,280,259,280]" italics="true" pageId="16" pageNumber="270">Spicules</emphasis>
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: diods, triods, and calthrops. Diods are thin, widening to the middle shaft where there are one or two short bends (
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<figureCitation id="5685B5F8FFB3FF84FE9FEC43FE383C0E" box="[350,429,320,342]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="16" pageNumber="270">Fig. 7A</figureCitation>
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). Diods are in a wide size range; they measure 10–(44.8)–70 μm long and 0.25–(1.35)– 2.5 μm wide. Triods rays are mostly equidistant, thin but irregularly straight, sometimes with one ray smaller than the other two (
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<figureCitation id="5685B5F8FFB3FF84FE4DECB8FE773C88" box="[396,482,443,465]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="16" pageNumber="270">Fig. 7B</figureCitation>
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). The rays measure 3.75– 25 μm long; [total spicule length 7.25–(13.43)–42.5 μm]. Calthrops can be equidistant or with one longer ray (
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<figureCitation id="5685B5F8FFB3FF84FF6DEF15FE943F74" box="[172,257,534,556]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="16" pageNumber="270">Fig. 7C</figureCitation>
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). The rays measure 3.75–22.5 μm long [total spicule length 7.5–(25.19)–42.5 μm].
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</paragraph>
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<paragraph id="CE01A97DFFB3FF84FF7DEF50FD573E06" blockId="16.[164,779,198,862]" pageId="16" pageNumber="270">
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<emphasis id="FCCA756FFFB3FF84FF7DEF50FEB63F30" box="[188,291,595,616]" italics="true" pageId="16" pageNumber="270">Skeleton:</emphasis>
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the ectosomal skeleton consists of a tangential alveolar layer (20–30 μm in thickness) of spicule tracts (mainly diods), forming rounded meshes of 20– 90 μm in diameter (
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<figureCitation id="5685B5F8FFB3FF84FE50EFACFE7D3F9D" box="[401,488,687,709]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="16" pageNumber="270">Fig. 7D</figureCitation>
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). The choanosomal skeleton is a dense structure formed mainly by diods, triods, and rare small calthrops. which form an irregular to alveolar pattern, with meshes of 30 to 55 μm in diameter (
|
||
<figureCitation id="5685B5F8FFB3FF84FEC4EE29FECF3E67" box="[261,346,810,832]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="16" pageNumber="270">Fig. 7E</figureCitation>
|
||
). Choanosomal spaces are very abundant and vary from 70 to 500 μm in diameter.
|
||
</paragraph>
|
||
<paragraph id="CE01A97DFFB3FF84FF65EE86FE2B3EC2" blockId="16.[164,778,901,1046]" box="[164,446,901,922]" pageId="16" pageNumber="270">
|
||
<emphasis id="FCCA756FFFB3FF84FF65EE86FE2B3EC2" box="[164,446,901,922]" italics="true" pageId="16" pageNumber="270">Ecology and distribution</emphasis>
|
||
</paragraph>
|
||
<paragraph id="CE01A97DFFB3FF84FF65EEA7FD3D394E" blockId="16.[164,778,901,1046]" pageId="16" pageNumber="270">
|
||
<materialsCitation id="7ED6A320FFB3FF84FF65EEA7FD30394E" country="Clipperton Island" elevation="55" location="The" pageId="16" pageNumber="270" specimenCount="1">
|
||
<location id="CB61FFA6FFB3FF84FF65EEA7FF453EE2" LSID="urn:lsid:plazi:treatment:4617186BFFACFF84FC8DEC75FC443DA2:CB61FFA6FFB3FF84FF65EEA7FF453EE2" box="[164,208,932,954]" country="Clipperton Island" name="The" pageId="16" pageNumber="270">The</location>
|
||
species was described from
|
||
<collectingCountry id="B6A9E9EDFFB3FF84FDDAEEA7FD733EE2" box="[539,742,932,954]" name="Clipperton Island" pageId="16" pageNumber="270">Clipperton Island</collectingCountry>
|
||
on dead corals in deep reef habitat (
|
||
<quantity id="09460498FFB3FF84FDD1EEC0FDD33E80" box="[528,582,963,985]" metricMagnitude="1" metricUnit="m" metricValue="5.5" pageId="16" pageNumber="270" unit="m" value="55.0">
|
||
<elevation id="45934E4EFFB3FF84FDD1EEC0FDD33E80" box="[528,582,963,985]" metricMagnitude="1" metricUnit="m" metricValue="5.5" pageId="16" pageNumber="270" unit="m" value="55.0">55 m</elevation>
|
||
</quantity>
|
||
) (
|
||
<bibRefCitation id="AA2FD48CFFB3FF84FD9CEEC0FF483EAF" author="van Soest RWM & Kaiser KL & van Syoc R" pageId="16" pageNumber="270" pagination="1 - 46" refId="ref17279" refString="van Soest RWM, Kaiser KL, van Syoc R. 2011. Sponges from Clipperton Island, East Pacific. Zootaxa 2839: 1 - 46." type="journal article" year="2011">
|
||
van Soest
|
||
<emphasis id="FCCA756FFFB3FF84FD0EEEC0FD683E80" box="[719,765,963,984]" italics="true" pageId="16" pageNumber="270">et al</emphasis>
|
||
., 2011
|
||
</bibRefCitation>
|
||
). In the present study it was found on the same island under rock and corals at
|
||
<elevation id="45934E4EFFB3FF84FDDFE903FD30394E" box="[542,677,1024,1046]" metricMagnitude="1" metricUnit="m" metricValue="1.4" pageId="16" pageNumber="270" unit="m" value="14.0">
|
||
<quantity id="09460498FFB3FF84FDDFE903FDC3394D" box="[542,598,1024,1045]" metricMagnitude="1" metricUnit="m" metricValue="1.4" pageId="16" pageNumber="270" unit="m" value="14.0">14 m</quantity>
|
||
depth
|
||
</elevation>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="CE01A97DFFB3FF84FF65E93EFE9C390A" blockId="16.[164,779,1085,1902]" box="[164,265,1085,1106]" pageId="16" pageNumber="270">
|
||
<emphasis id="FCCA756FFFB3FF84FF65E93EFE9C390A" box="[164,265,1085,1106]" italics="true" pageId="16" pageNumber="270">Remarks</emphasis>
|
||
</paragraph>
|
||
<paragraph id="CE01A97DFFB3FF84FF65E95FFE943995" blockId="16.[164,779,1085,1902]" pageId="16" pageNumber="270">
|
||
The species was recently described by
|
||
<bibRefCitation id="AA2FD48CFFB3FF84FD9CE95FFF7839C8" author="van Soest RWM & Kaiser KL & van Syoc R" pageId="16" pageNumber="270" pagination="1 - 46" refId="ref17279" refString="van Soest RWM, Kaiser KL, van Syoc R. 2011. Sponges from Clipperton Island, East Pacific. Zootaxa 2839: 1 - 46." type="journal article" year="2011">
|
||
van Soest
|
||
<emphasis id="FCCA756FFFB3FF84FD12E95FFC913929" box="[723,772,1116,1137]" italics="true" pageId="16" pageNumber="270">et al</emphasis>
|
||
. (2011)
|
||
</bibRefCitation>
|
||
. Our specimen agrees in general aspects with the original description, although subtle differences are present.
|
||
</paragraph>
|
||
<paragraph id="CE01A97DFFB3FF84FF7DE9D5FC443DA2" blockId="16.[164,779,1085,1902]" lastBlockId="16.[826,1441,198,250]" pageId="16" pageNumber="270">
|
||
The specimen described by
|
||
<bibRefCitation id="AA2FD48CFFB3FF84FE36E9D5FD7939B3" author="van Soest RWM & Kaiser KL & van Syoc R" box="[503,748,1238,1260]" pageId="16" pageNumber="270" pagination="1 - 46" refId="ref17279" refString="van Soest RWM, Kaiser KL, van Syoc R. 2011. Sponges from Clipperton Island, East Pacific. Zootaxa 2839: 1 - 46." type="journal article" year="2011">
|
||
van Soest
|
||
<emphasis id="FCCA756FFFB3FF84FDAFE9D4FD0B39B3" box="[622,670,1238,1260]" italics="true" pageId="16" pageNumber="270">et al</emphasis>
|
||
., 2011
|
||
</bibRefCitation>
|
||
, is cake-shaped,
|
||
<quantity id="09460498FFB3FF84FE83E9F6FEED3852" box="[322,376,1269,1290]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="16" pageNumber="270" unit="cm" value="1.0">1 cm</quantity>
|
||
thick; although we only analysed a small fragment, our specimen was cushion-shaped and about
|
||
<quantity id="09460498FFB3FF84FEE2E831FECD381F" box="[291,344,1330,1351]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="16" pageNumber="270" unit="cm" value="1.0">1 cm</quantity>
|
||
thick (
|
||
<figureCitation id="5685B5F8FFB3FF84FE6FE831FD973810" box="[430,514,1330,1352]" captionStart="Figure 2" captionStartId="5.[144,223,1451,1470]" captionTargetBox="[271,1296,194,1422]" captionTargetId="figure-149@5.[271,1296,194,1422]" captionTargetPageId="5" captionText="Figure 2. External morphologies of plakinid species from the eastern Pacific. A, B, Plakina muricyae sp. nov. C, i, Plakina paradilopha sp. nov.; ii, Plakina muricyae sp. nov. D, Plakortis clarionensis sp. nov. E, Plakortis albicans Cruz-Barraza & Carballo, 2005. F, Plakinastrella clippertonensis van Soest et al., 2011." figureDoi="http://doi.org/10.5281/zenodo.5306492" httpUri="https://zenodo.org/record/5306492/files/figure.png" pageId="16" pageNumber="270">Fig. 2F</figureCitation>
|
||
). The original description also mentioned the skeleton as dense mass of diods and triods arranged around the aquiferous system, which is similar to our specimen (
|
||
<figureCitation id="5685B5F8FFB3FF84FDF8E88DFD1838FB" box="[569,653,1422,1444]" captionStart="Figure 7" captionStartId="15.[144,223,1824,1843]" captionTargetBox="[303,1263,866,1794]" captionTargetId="figure-234@15.[303,1263,866,1794]" captionTargetPageId="15" captionText="Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome." figureDoi="http://doi.org/10.5281/zenodo.5306506" httpUri="https://zenodo.org/record/5306506/files/figure.png" pageId="16" pageNumber="270">Fig. 7E</figureCitation>
|
||
), although we also found a not well-defined alveolar pattern in some sections of the sponge body. The ectosomal alveolar skeleton is similar too, although with rounded meshes slightly smaller in our specimens (50–100 μm vs. 20–90 μm, respectively). Diods and triods present a very similar size (diods: 4–75 μm in original description vs. 10–70 μm in our specimen; triod ray: 3.75– 25 μm vs. 5–33 μm, respectively). However, simple calthrops are smaller than in our specimen (9–15 μm vs. 3.75–22.5 μm, respectively). In general, calthrops are very rare and only 12 were measured in the original description; we found a large number of spicules and a substantial range of measurements. To date, only
|
||
<specimenCount id="D8B862F4FFB3FF84FF65EA39FED43A08" box="[164,321,1850,1872]" pageId="16" pageNumber="270" type="generic">two specimens</specimenCount>
|
||
of this species have been described. When more specimens are described, it will probably be possible to establish clearly the limits and ranges of spicule sizes.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |