337 lines
44 KiB
XML
337 lines
44 KiB
XML
<document id="2ACCB6C38D2675BD47BA049FE9847652" ID-CLB-Dataset="26507" ID-DOI="10.11646/zootaxa.4615.2.1" ID-GBIF-Dataset="f8ebafc8-79ab-4eef-b52b-8c207ff2b1ec" ID-ISSN="1175-5326" ID-Zenodo-Dep="3244638" ID-ZooBank="9B9884DA-18D5-4BC9-950F-0436E075AAF8" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1560402561141" checkinUser="plazi" docAuthor="Alvizu, Adriana, Xavier, Joana R. & Rapp, Hans Tore" docDate="2019" docId="513F790DFFF5FF9AE994D1A7FE294F5F" docLanguage="en" docName="zootaxa.4615.2.1.pdf" docOrigin="Zootaxa 4615 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Megapogon villosus" docType="treatment" docVersion="14" lastPageNumber="235" masterDocId="AD060175FFD5FFB8E903D13DFF954C64" masterDocTitle="Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea)" masterLastPageNumber="251" masterPageNumber="201" pageNumber="233" updateTime="1698735438809" updateUser="ExternalLinkService">
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<mods:mods id="9215C24139152F87624ADC206B7D546A" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="83FD615C41075147DD5C8C67A0B52DB5">
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<mods:title id="47E13261E42F141CA1B67A53187AACC3">Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea)</mods:title>
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<mods:namePart id="0C4CFD4E0265B4F8DD8D28162F4DBE26">Alvizu, Adriana</mods:namePart>
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<mods:namePart id="DA87D799B55C723C83C3ED8DFBFB1982">Xavier, Joana R.</mods:namePart>
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<mods:name id="8827B61F089361B6CF3931D98D5DF195" type="personal">
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<mods:roleTerm id="6F55744ED55469BBD97A30D403494A8B">Author</mods:roleTerm>
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<mods:namePart id="4AEB9C1444ABD5B22F2220400C0CEE30">Rapp, Hans Tore</mods:namePart>
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<mods:typeOfResource id="2FA507D15B2295C5EB88CE23B0FD03F0">text</mods:typeOfResource>
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<mods:title id="06718BB390D93C9727E8A6FF42C67028">Zootaxa</mods:title>
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<mods:part id="8CF272F42C0B2B992CC8E7B436882EFB">
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<mods:date id="ACD3B55540E369F726542EEFCFE25369">2019</mods:date>
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<mods:number id="491F10B2B4DA348562D88D2CD842D212">2019-06-13</mods:number>
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<mods:number id="73D61A83602C454D079A4B9C77986074">4615</mods:number>
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<mods:detail id="DE1B077266F2F4FEEB425C382EF1E5B2" type="issue">
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<mods:classification id="2CB5F3EF401554856604CE9235B06D48">journal article</mods:classification>
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<mods:identifier id="D501AF3B12385D8D985B1F9F98DEE9D5" type="CLB-Dataset">26507</mods:identifier>
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<mods:identifier id="C3334B4E18FA9FD3073711E20EA53ADE" type="DOI">10.11646/zootaxa.4615.2.1</mods:identifier>
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<treatment id="513F790DFFF5FF9AE994D1A7FE294F5F" ID-DOI="http://doi.org/10.5281/zenodo.5584074" ID-GBIF-Taxon="157533036" ID-Zenodo-Dep="5584074" LSID="urn:lsid:plazi:treatment:513F790DFFF5FF9AE994D1A7FE294F5F" httpUri="http://treatment.plazi.org/id/513F790DFFF5FF9AE994D1A7FE294F5F" lastPageId="34" lastPageNumber="235" pageId="32" pageNumber="233">
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<subSubSection id="918C9B90FFF5FF98E994D1A7FDD74CD7" box="[151,578,153,180]" pageId="32" pageNumber="233" type="nomenclature">
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<paragraph id="D929C81BFFF5FF98E994D1A7FDD74CD7" blockId="32.[151,578,153,216]" box="[151,578,153,180]" pageId="32" pageNumber="233">
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<heading id="82617F77FFF5FF98E994D1A7FDD74CD7" bold="true" box="[151,578,153,180]" fontSize="11" level="1" pageId="32" pageNumber="233" reason="1">
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<taxonomicName id="1E96B398FFF5FF98E994D1A7FDD74CD7" ID-CoL="3YWVG" authority="(Jenkin, 1908)" baseAuthorityName="Jenkin" baseAuthorityYear="1908" box="[151,578,153,180]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="32" pageNumber="233" phylum="Porifera" rank="species" species="villosus">
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<emphasis id="EBE21409FFF5FF98E994D1A7FDD74CD7" bold="true" box="[151,578,153,180]" pageId="32" pageNumber="233">
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<emphasis id="EBE21409FFF5FF98E994D1A7FE1C4CD0" bold="true" box="[151,393,153,180]" italics="true" pageId="32" pageNumber="233">Megapogon villosus</emphasis>
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(
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<bibRefCitation id="BD07B5EAFFF5FF98E89AD1A4FDAF4CD7" author="Jenkin, C. F." box="[409,570,153,179]" pageId="32" pageNumber="233" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin, 1908</bibRefCitation>
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)
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="918C9B90FFF5FF98E994D180FC0D4D44" pageId="32" pageNumber="233" type="description">
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<paragraph id="D929C81BFFF5FF98E994D180FE6E4CB3" blockId="32.[151,578,153,216]" box="[151,507,189,216]" pageId="32" pageNumber="233">
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(
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<figureCitation id="41ADD49EFFF5FF98E99CD180FF674CB3" box="[159,242,189,215]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="32" pageNumber="233">Figs 14</figureCitation>
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A–F, 15A–D;
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<tableCitation id="9414FDA0FFF5FF98E891D180FE674CB3" box="[402,498,189,215]" captionStart="TABLE 11" captionStartId="34.[151,239,874,898]" captionTargetPageId="34" captionText="TABLE 11. Spicule measurements of Megapogon villosus (lectotype BMNH-1907.8.6.146). Measurements from the original description by Jenkin (1908) are included below." httpUri="http://table.plazi.org/id/8DE99893FFF7FF9AE994D257FD6F4FC3" pageId="32" pageNumber="233" tableUuid="8DE99893FFF7FF9AE994D257FD6F4FC3">Table 11</tableCitation>
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)
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</paragraph>
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<paragraph id="D929C81BFFF5FF98E994D038FC0D4D44" blockId="32.[151,1437,261,395]" box="[151,920,261,288]" pageId="32" pageNumber="233">
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<emphasis id="EBE21409FFF5FF98E994D038FE054D44" bold="true" box="[151,400,261,288]" pageId="32" pageNumber="233">Original description.</emphasis>
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<bibRefCitation id="BD07B5EAFFF5FF98E894D038FDB74D7B" author="Jenkin, C. F." box="[407,546,261,287]" pageId="32" pageNumber="233" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin 1908</bibRefCitation>
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, p. 37, pl. XXXVI, figs 115–119.
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</paragraph>
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</subSubSection>
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<subSubSection id="918C9B90FFF5FF99E9C4D017FB8E4A5E" lastPageId="33" lastPageNumber="234" pageId="32" pageNumber="233" type="materials_examined">
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<paragraph id="D929C81BFFF5FF98E9C4D017FD5A4D27" blockId="32.[151,1437,261,395]" box="[199,719,297,324]" pageId="32" pageNumber="233">
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<materialsCitation id="69FEC246FFF5FF98E9C4D017FD5E4D27" ID-GBIF-Occurrence="2252532217" box="[199,715,297,324]" location="Winter Quarters Bay" municipality="Antarctic" pageId="32" pageNumber="233" specimenCount="1" typeStatus="holotype">
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<emphasis id="EBE21409FFF5FF98E9C4D017FEF34D20" bold="true" box="[199,358,297,324]" pageId="32" pageNumber="233">
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<typeStatus id="062D76B9FFF5FF98E9C4D017FE974D20" box="[199,258,298,324]" pageId="32" pageNumber="233">Type</typeStatus>
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locality.
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</emphasis>
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<location id="DC499EC0FFF5FF98E86FD014FDC04D20" LSID="urn:lsid:plazi:treatment:513F790DFFF5FF9AE994D1A7FE294F5F:DC499EC0FFF5FF98E86FD014FDC04D20" box="[364,597,297,324]" municipality="Antarctic" name="Winter Quarters Bay" pageId="32" pageNumber="233">Winter Quarters Bay</location>
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,
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<collectingMunicipality id="394D5261FFF5FF98EB5CD014FD5E4D27" box="[607,715,297,323]" pageId="32" pageNumber="233">Antarctic</collectingMunicipality>
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</materialsCitation>
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.
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</paragraph>
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<paragraph id="D929C81BFFF5FF98E9C4D070FE9F4DEF" blockId="32.[151,1437,261,395]" pageId="32" pageNumber="233">
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<emphasis id="EBE21409FFF5FF98E9C4D070FE754D0C" bold="true" box="[199,480,333,360]" pageId="32" pageNumber="233">Synonym and citations.</emphasis>
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<taxonomicName id="1E96B398FFF5FF98E8E4D073FC2B4D03" authority=", Burton 1929, p. 403" authorityName="Burton" authorityPageNumber="403" authorityYear="1929" box="[487,958,333,360]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="32" pageNumber="233" phylum="Porifera" rank="species" species="villosus">
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<emphasis id="EBE21409FFF5FF98E8E4D073FD5F4D03" box="[487,714,333,359]" italics="true" pageId="32" pageNumber="233">Megapogon villosus</emphasis>
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,
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<bibRefCitation id="BD07B5EAFFF5FF98EBDAD073FCFC4D03" author="Burton, M." box="[729,873,333,360]" pageId="32" pageNumber="233" pagination="393 - 458" refId="ref26277" refString="Burton, M. (1929) Porifera. Part II. Antarctic sponges. British Antarctic (' Terra Nova') Expedition, 1910. Natural History Report, London, British Museum (Natural History). Zoology, 6, 393 - 458, pls. I-V." type="journal article" year="1929">Burton 1929</bibRefCitation>
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, p. 403
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</taxonomicName>
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;
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<taxonomicName id="1E96B398FFF5FF98EAC9D073FABE4D03" authority=", Burton 1963, p. 93" authorityName=", Burton" authorityPageNumber="93" authorityYear="1963" box="[970,1323,333,360]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="32" pageNumber="233" phylum="Porifera" rank="species" species="villosus">
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<emphasis id="EBE21409FFF5FF98EAC9D073FBD34D03" box="[970,1094,333,359]" italics="true" pageId="32" pageNumber="233">M. villosus</emphasis>
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,
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<bibRefCitation id="BD07B5EAFFF5FF98ED57D073FB704D03" author="Burton, M." box="[1108,1253,333,360]" pageId="32" pageNumber="233" refId="ref26370" refString="Burton, M. (1963) A revision of the classification of the calcareous sponges: With a catalogue of the specimens in the British Museum (Natural History). Order of the trustees of the British Museum (Natural History), London, 693 pp." type="book" year="1963">Burton 1963</bibRefCitation>
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, p. 93
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</taxonomicName>
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, 527 (figs 333–334).
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</paragraph>
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<caption id="8DE99893FFF5FF98E994D666FC0E4B84" httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="32" pageNumber="233" startId="32.[151,250,1883,1908]" targetBox="[151,1402,438,1864]" targetPageId="32">
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<paragraph id="D929C81BFFF5FF98E994D666FC0E4B84" blockId="32.[151,1436,1883,2016]" pageId="32" pageNumber="233">
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<emphasis id="EBE21409FFF5FF98E994D666FEDE4B10" bold="true" box="[151,331,1883,1908]" pageId="32" pageNumber="233">FIGURE 14A–F.</emphasis>
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<taxonomicName id="1E96B398FFF5FF98E852D660FD884B10" authorityName=", Burton" authorityYear="1963" box="[337,541,1884,1908]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="32" pageNumber="233" phylum="Porifera" rank="species" species="villosus">
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<emphasis id="EBE21409FFF5FF98E852D660FD884B10" box="[337,541,1884,1908]" italics="true" pageId="32" pageNumber="233">Megapogon villosus</emphasis>
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</taxonomicName>
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.
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<emphasis id="EBE21409FFF5FF98EB29D666FDD14B10" bold="true" box="[554,580,1883,1908]" pageId="32" pageNumber="233">A:</emphasis>
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preserved cotype BMNH-1907.8.6.151.
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<emphasis id="EBE21409FFF5FF98EAE1D666FB8E4B10" bold="true" box="[994,1051,1883,1908]" pageId="32" pageNumber="233">B–C:</emphasis>
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histological section including cortical layer, choanosome and atrial cavity.
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<emphasis id="EBE21409FFF5FF98EB06D6BDFDA84BFC" bold="true" box="[517,573,1920,1944]" pageId="32" pageNumber="233">D–E:</emphasis>
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SEM images of cortical layer.
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<emphasis id="EBE21409FFF5FF98EA70D6BDFC1E4BFC" bold="true" box="[883,907,1920,1944]" pageId="32" pageNumber="233">F:</emphasis>
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SEM image of choanosome section, including cortical layer, choanosome and atrial cavity.
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<emphasis id="EBE21409FFF5FF98EB33D69EFD444BD8" bold="true" box="[560,721,1955,1980]" pageId="32" pageNumber="233">Abbreviations:</emphasis>
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At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum.
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</paragraph>
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</caption>
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<caption id="8DE99893FFF4FF99E994D54CFC8C48B6" httpUri="https://zenodo.org/record/3244660/files/figure.png" pageId="33" pageNumber="234" startId="33.[151,250,1137,1162]" targetBox="[151,1402,166,1117]" targetPageId="33">
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||
<paragraph id="D929C81BFFF4FF99E994D54CFC8C48B6" blockId="33.[151,1437,1137,1234]" pageId="33" pageNumber="234">
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<emphasis id="EBE21409FFF4FF99E994D54CFEC648EE" bold="true" box="[151,339,1137,1162]" pageId="33" pageNumber="234">FIGURE 15A–D:</emphasis>
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<taxonomicName id="1E96B398FFF4FF99E859D54FFDB348ED" authorityName=", Burton" authorityYear="1963" box="[346,550,1137,1161]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="33" pageNumber="234" phylum="Porifera" rank="species" species="villosus">
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<emphasis id="EBE21409FFF4FF99E859D54FFDB348ED" box="[346,550,1137,1161]" italics="true" pageId="33" pageNumber="234">Megapogon villosus</emphasis>
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||
</taxonomicName>
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||
.
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<emphasis id="EBE21409FFF4FF99EB31D54CFDD948EE" bold="true" box="[562,588,1137,1162]" pageId="33" pageNumber="234">A:</emphasis>
|
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SEM image of atrial layer.
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<emphasis id="EBE21409FFF4FF99EA66D54CFC0B48ED" bold="true" box="[869,926,1137,1161]" pageId="33" pageNumber="234">B–D:</emphasis>
|
||
SEM images of spicules; fragmented diactine and cortical triactines (B), microdiactine (C), chiactine (D).
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<emphasis id="EBE21409FFF4FF99EBC6D5A8FCF348CA" bold="true" box="[709,870,1173,1198]" pageId="33" pageNumber="234">Abbreviations:</emphasis>
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Chi = chiactines; Ctr = cortical triactines; Di= diactines; Mic = microdiactines; Exa = exhalant aperture; Tri = triactines.
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</paragraph>
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</caption>
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<paragraph id="D929C81BFFF4FF99E9C4D5C2FBA449CF" blockId="33.[151,1437,1279,2026]" pageId="33" pageNumber="234">
|
||
<emphasis id="EBE21409FFF4FF99E9C4D5C2FE3E497E" bold="true" box="[199,427,1279,1306]" pageId="33" pageNumber="234">Material examined</emphasis>
|
||
.
|
||
<materialsCitation id="69FEC246FFF4FF99E8B9D43DFDCD495B" ID-GBIF-Occurrence="2252532224" collectionCode="HMS" pageId="33" pageNumber="234" specimenCount="1" typeStatus="lectotype">
|
||
<typeStatus id="062D76B9FFF4FF99E8B9D43DFDA5497E" box="[442,560,1280,1306]" pageId="33" pageNumber="234" type="lectotype">
|
||
<emphasis id="EBE21409FFF4FF99E8B9D43DFDA5497E" bold="true" box="[442,560,1280,1306]" pageId="33" pageNumber="234">Lectotype</emphasis>
|
||
</typeStatus>
|
||
: BMNH-1907.8.6.146 (fragments of one specimen and four slides), National Antarctic Expedition (
|
||
<collectionCode id="BF8750DEFFF4FF99E891D419FE45495A" box="[402,464,1316,1342]" country="Brazil" lsid="urn:lsid:biocol.org:col:15108" name="Embrapa Gado de Corte" pageId="33" pageNumber="234" type="Herbarium">HMS</collectionCode>
|
||
Discovery)
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||
</materialsCitation>
|
||
.
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||
<materialsCitation id="69FEC246FFF4FF99EB60D419FC884907" ID-GBIF-Occurrence="2252532214" collectionCode="HMS" pageId="33" pageNumber="234" specimenCount="1" typeStatus="paralectotype">
|
||
<emphasis id="EBE21409FFF4FF99EB60D419FC84495A" bold="true" box="[611,785,1316,1342]" pageId="33" pageNumber="234">
|
||
<typeStatus id="062D76B9FFF4FF99EB60D419FC99495A" box="[611,780,1316,1342]" pageId="33" pageNumber="234" type="paralectotype">Paralectotype</typeStatus>
|
||
:
|
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</emphasis>
|
||
BMNH-1907.8.6.151 (one fragmented specimen and one slide), National Antarctic Expedition (
|
||
<collectionCode id="BF8750DEFFF4FF99EB50D475FD044906" box="[595,657,1352,1378]" country="Brazil" lsid="urn:lsid:biocol.org:col:15108" name="Embrapa Gado de Corte" pageId="33" pageNumber="234" type="Herbarium">HMS</collectionCode>
|
||
Discovery)
|
||
</materialsCitation>
|
||
.
|
||
<materialsCitation id="69FEC246FFF4FF99EA28D475FB7749E3" ID-GBIF-Occurrence="2252532236" collectionCode="HMS" location="Winter Quarters Bay" municipality="National Antarctic Expedition" pageId="33" pageNumber="234" specimenCount="1" typeStatus="paralectotype">
|
||
<emphasis id="EBE21409FFF4FF99EA28D475FC4C4906" bold="true" box="[811,985,1352,1378]" pageId="33" pageNumber="234">
|
||
<typeStatus id="062D76B9FFF4FF99EA28D475FC414906" box="[811,980,1352,1378]" pageId="33" pageNumber="234" type="paralectotype">Paralectotype</typeStatus>
|
||
:
|
||
</emphasis>
|
||
BMNH-1907.8.6.153 (one fragmented specimen and one slide),
|
||
<location id="DC499EC0FFF4FF99E8B8D451FD3D49E2" LSID="urn:lsid:plazi:treatment:513F790DFFF5FF9AE994D1A7FE294F5F:DC499EC0FFF4FF99E8B8D451FD3D49E2" box="[443,680,1388,1414]" municipality="National Antarctic Expedition" name="Winter Quarters Bay" pageId="33" pageNumber="234">Winter Quarters Bay</location>
|
||
,
|
||
<collectingMunicipality id="394D5261FFF4FF99EBB6D451FB9F49E2" box="[693,1034,1388,1414]" pageId="33" pageNumber="234">National Antarctic Expedition</collectingMunicipality>
|
||
(
|
||
<collectionCode id="BF8750DEFFF4FF99ED19D451FBCD49E2" box="[1050,1112,1388,1414]" country="Brazil" lsid="urn:lsid:biocol.org:col:15108" name="Embrapa Gado de Corte" pageId="33" pageNumber="234" type="Herbarium">HMS</collectionCode>
|
||
Discovery)
|
||
</materialsCitation>
|
||
.
|
||
<materialsCitation id="69FEC246FFF4FF99EDEDD451FBB849CF" ID-GBIF-Occurrence="2252532235" collectionCode="HMS" pageId="33" pageNumber="234" specimenCount="1" typeStatus="paralectotype">
|
||
<emphasis id="EBE21409FFF4FF99EDEDD451FA0949E2" bold="true" box="[1262,1436,1388,1414]" pageId="33" pageNumber="234">
|
||
<typeStatus id="062D76B9FFF4FF99EDEDD451FA0249E2" box="[1262,1431,1388,1414]" pageId="33" pageNumber="234" type="paralectotype">Paralectotype</typeStatus>
|
||
:
|
||
</emphasis>
|
||
BMNH-1907.8.6.152: one slide, National Antarctic Expedition (
|
||
<collectionCode id="BF8750DEFFF4FF99EA64D4ADFC3049CE" box="[871,933,1424,1450]" country="Brazil" lsid="urn:lsid:biocol.org:col:15108" name="Embrapa Gado de Corte" pageId="33" pageNumber="234" type="Herbarium">HMS</collectionCode>
|
||
Discovery)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF4FF99E9C4D489FB8E4A5E" blockId="33.[151,1437,1279,2026]" pageId="33" pageNumber="234">
|
||
<emphasis id="EBE21409FFF4FF99E9C4D489FEF449AA" bold="true" box="[199,353,1460,1486]" pageId="33" pageNumber="234">Morphology.</emphasis>
|
||
Vase-shaped sponge, without a well-developed oscular fringe. Surface strongly hispid due to a dense mat of very long diactines, which point down towards the base of the sponge (
|
||
<figureCitation id="41ADD49EFFF4FF99ED43D4E5FB344996" box="[1088,1185,1496,1522]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Fig 14A</figureCitation>
|
||
). The
|
||
<typeStatus id="062D76B9FFF4FF99EDE6D4E5FAD94996" box="[1253,1356,1496,1522]" pageId="33" pageNumber="234" type="lectotype">lectotype</typeStatus>
|
||
is
|
||
<quantity id="1E6E65FEFFF4FF99EC68D4E5FF564A72" metricMagnitude="-2" metricUnit="m" metricValue="1.46" pageId="33" pageNumber="234" unit="mm" value="14.6">14.6 mm</quantity>
|
||
long,
|
||
<quantity id="1E6E65FEFFF4FF99E809D4C1FE044A72" box="[266,401,1532,1558]" metricMagnitude="-3" metricUnit="m" metricValue="5.7" metricValueMax="7.8" metricValueMin="3.6" pageId="33" pageNumber="234" unit="mm" value="5.7" valueMax="7.8" valueMin="3.6">3.6–7.8 mm</quantity>
|
||
wide, and
|
||
<quantity id="1E6E65FEFFF4FF99EB08D4C1FD074A72" box="[523,658,1532,1558]" metricMagnitude="-4" metricUnit="m" metricValue="9.5" metricValueMax="11.0" metricValueMin="8.0" pageId="33" pageNumber="234" unit="mm" value="0.95" valueMax="1.1" valueMin="0.8">0.8–1.1 mm</quantity>
|
||
thick. Colour beige in ethanol. Aquiferous system seems to be leuconoid with rounded choanocyte chambers scattered in the mesohyl (
|
||
<figureCitation id="41ADD49EFFF4FF99EA80D71DFC424A5E" box="[899,983,1568,1594]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Figs 14</figureCitation>
|
||
B–C).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="918C9B90FFF4FF9AE9C4D77EFF574D7B" lastPageId="34" lastPageNumber="235" pageId="33" pageNumber="234" type="description">
|
||
<paragraph id="D929C81BFFF4FF99E9C4D77EFC574B76" blockId="33.[151,1437,1279,2026]" pageId="33" pageNumber="234">
|
||
<emphasis id="EBE21409FFF4FF99E9C4D77EFEA04A3A" bold="true" box="[199,309,1603,1630]" pageId="33" pageNumber="234">Skeleton.</emphasis>
|
||
Cortical skeleton composed of tangentially arranged triactines, and a dense mat of long diactines that cross the surface (
|
||
<figureCitation id="41ADD49EFFF4FF99E85DD755FE554AE6" box="[350,448,1640,1666]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Fig 14D</figureCitation>
|
||
). Smaller and spiny microdiactines are placed around the inhalant pores (
|
||
<figureCitation id="41ADD49EFFF4FF99EDEFD755FADF4AE6" box="[1260,1354,1640,1666]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Fig 14E</figureCitation>
|
||
). In the choanoskeleton there are chiactines and triactines with their unpaired actines that can project through the surface (
|
||
<figureCitation id="41ADD49EFFF4FF99E99CD78DFF664AAE" box="[159,243,1712,1738]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Figs 14</figureCitation>
|
||
C–F). The atrial skeleton comprises chiactines with their long unpaired actines pointing towards, and often projecting through the cortex (
|
||
<figureCitation id="41ADD49EFFF4FF99E8EFD7E9FDAA4A8A" box="[492,575,1748,1774]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Figs 14</figureCitation>
|
||
C–F). The atrial wall is supported by the paired actines of the chiactines, and among them some triactines and microdiactines can be found (
|
||
<figureCitation id="41ADD49EFFF4FF99EA57D7C5FC234B76" box="[852,950,1783,1810]" captionStart="FIGURE 15" captionStartId="33.[151,250,1137,1162]" captionTargetBox="[151,1402,166,1117]" captionTargetId="figure@33.[151,1402,166,1117]" captionTargetPageId="33" captionText="FIGURE 15A–D: Megapogon villosus. A: SEM image of atrial layer. B–D: SEM images of spicules; fragmented diactine and cortical triactines (B), microdiactine (C), chiactine (D). Abbreviations: Chi = chiactines; Ctr = cortical triactines; Di= diactines; Mic = microdiactines; Exa = exhalant aperture; Tri = triactines." httpUri="https://zenodo.org/record/3244660/files/figure.png" pageId="33" pageNumber="234">Fig 15A</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF4FF99E9C4D626FA1B4B52" blockId="33.[151,1437,1279,2026]" box="[199,1422,1819,1846]" pageId="33" pageNumber="234">
|
||
<emphasis id="EBE21409FFF4FF99E9C4D626FEA54B52" bold="true" box="[199,304,1819,1846]" pageId="33" pageNumber="234">Spicules.</emphasis>
|
||
<emphasis id="EBE21409FFF4FF99E834D620FE374B52" box="[311,418,1821,1846]" italics="true" pageId="33" pageNumber="234">Diactines</emphasis>
|
||
: very long and straight with sharp points. Most of them were broken (
|
||
<figureCitation id="41ADD49EFFF4FF99EDB7D621FA864B52" box="[1204,1299,1819,1846]" captionStart="FIGURE 15" captionStartId="33.[151,250,1137,1162]" captionTargetBox="[151,1402,166,1117]" captionTargetId="figure@33.[151,1402,166,1117]" captionTargetPageId="33" captionText="FIGURE 15A–D: Megapogon villosus. A: SEM image of atrial layer. B–D: SEM images of spicules; fragmented diactine and cortical triactines (B), microdiactine (C), chiactine (D). Abbreviations: Chi = chiactines; Ctr = cortical triactines; Di= diactines; Mic = microdiactines; Exa = exhalant aperture; Tri = triactines." httpUri="https://zenodo.org/record/3244660/files/figure.png" pageId="33" pageNumber="234">Fig 15B</figureCitation>
|
||
,
|
||
<tableCitation id="9414FDA0FFF4FF99EC1DD621FA154B52" box="[1310,1408,1820,1846]" captionStart="TABLE 11" captionStartId="34.[151,239,874,898]" captionTargetPageId="34" captionText="TABLE 11. Spicule measurements of Megapogon villosus (lectotype BMNH-1907.8.6.146). Measurements from the original description by Jenkin (1908) are included below." httpUri="http://table.plazi.org/id/8DE99893FFF7FF9AE994D257FD6F4FC3" pageId="33" pageNumber="234" tableUuid="8DE99893FFF7FF9AE994D257FD6F4FC3">Table 11</tableCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF4FF99E9C4D67DFB734B1A" blockId="33.[151,1437,1279,2026]" pageId="33" pageNumber="234">
|
||
<emphasis id="EBE21409FFF4FF99E9C4D67DFEFA4B3E" box="[199,367,1856,1882]" italics="true" pageId="33" pageNumber="234">Microdiactines</emphasis>
|
||
: small and slightly bent diactines. Some smooth, and some with spines. One end lanceolate, and the other hastate (
|
||
<figureCitation id="41ADD49EFFF4FF99E85DD659FE534B1A" box="[350,454,1892,1918]" captionStart="FIGURE 14" captionStartId="32.[151,250,1883,1908]" captionTargetBox="[151,1402,438,1864]" captionTargetId="figure@32.[151,1402,438,1864]" captionTargetPageId="32" captionText="FIGURE 14A–F. Megapogon villosus. A: preserved cotype BMNH-1907.8.6.151. B–C: histological section including cortical layer, choanosome and atrial cavity. D–E: SEM images of cortical layer. F: SEM image of choanosome section, including cortical layer, choanosome and atrial cavity. Abbreviations: At = atrial cavity; Chc = choanocyte chambers; Chi = chiactines; Cor = cortical layer/cortex; Di = diactines; Mic = microdiactines; Os = osculum." httpUri="https://zenodo.org/record/3244658/files/figure.png" pageId="33" pageNumber="234">Figs 14E</figureCitation>
|
||
,
|
||
<figureCitation id="41ADD49EFFF4FF99E8D2D65EFE794B1A" box="[465,492,1891,1918]" captionStart="FIGURE 15" captionStartId="33.[151,250,1137,1162]" captionTargetBox="[151,1402,166,1117]" captionTargetId="figure@33.[151,1402,166,1117]" captionTargetPageId="33" captionText="FIGURE 15A–D: Megapogon villosus. A: SEM image of atrial layer. B–D: SEM images of spicules; fragmented diactine and cortical triactines (B), microdiactine (C), chiactine (D). Abbreviations: Chi = chiactines; Ctr = cortical triactines; Di= diactines; Mic = microdiactines; Exa = exhalant aperture; Tri = triactines." httpUri="https://zenodo.org/record/3244660/files/figure.png" pageId="33" pageNumber="234">15</figureCitation>
|
||
C–D). Size: 105.3 ±
|
||
<quantity id="1E6E65FEFFF4FF99EBD6D65EFCA64B1A" box="[725,819,1891,1918]" metricMagnitude="-2" metricUnit="m" metricValue="1.59" pageId="33" pageNumber="234" unit="mm" value="15.9">15.9 µm</quantity>
|
||
length; 4.5 ±
|
||
<quantity id="1E6E65FEFFF4FF99EACCD659FB8A4B1A" box="[975,1055,1892,1918]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="33" pageNumber="234" unit="mm" value="1.1">1.1 µm</quantity>
|
||
width (
|
||
<tableCitation id="9414FDA0FFF4FF99ED77D659FB4D4B1A" box="[1140,1240,1892,1918]" captionStart="TABLE 11" captionStartId="34.[151,239,874,898]" captionTargetPageId="34" captionText="TABLE 11. Spicule measurements of Megapogon villosus (lectotype BMNH-1907.8.6.146). Measurements from the original description by Jenkin (1908) are included below." httpUri="http://table.plazi.org/id/8DE99893FFF7FF9AE994D257FD6F4FC3" pageId="33" pageNumber="234" tableUuid="8DE99893FFF7FF9AE994D257FD6F4FC3">Table 11</tableCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF4FF99E9C4D6B5FD2B4B8E" blockId="33.[151,1437,1279,2026]" pageId="33" pageNumber="234">
|
||
<emphasis id="EBE21409FFF4FF99E9C4D6B5FE034BC6" box="[199,406,1928,1954]" italics="true" pageId="33" pageNumber="234">Cortical triactines</emphasis>
|
||
: alate triactines with straight unpaired actines longer than the paired actines. Paired actines nearly straight (
|
||
<figureCitation id="41ADD49EFFF4FF99E845D691FE334BA2" box="[326,422,1963,1990]" captionStart="FIGURE 15" captionStartId="33.[151,250,1137,1162]" captionTargetBox="[151,1402,166,1117]" captionTargetId="figure@33.[151,1402,166,1117]" captionTargetPageId="33" captionText="FIGURE 15A–D: Megapogon villosus. A: SEM image of atrial layer. B–D: SEM images of spicules; fragmented diactine and cortical triactines (B), microdiactine (C), chiactine (D). Abbreviations: Chi = chiactines; Ctr = cortical triactines; Di= diactines; Mic = microdiactines; Exa = exhalant aperture; Tri = triactines." httpUri="https://zenodo.org/record/3244660/files/figure.png" pageId="33" pageNumber="234">Fig 15B</figureCitation>
|
||
). Size: unpaired actines 289.6 ±
|
||
<quantity id="1E6E65FEFFF4FF99EA12D696FCE84BA2" box="[785,893,1963,1990]" metricMagnitude="-1" metricUnit="m" metricValue="1.885" pageId="33" pageNumber="234" unit="mm" value="188.5">188.5 µm</quantity>
|
||
length, 8.5 ±
|
||
<quantity id="1E6E65FEFFF4FF99ED14D691FBF24BA2" box="[1047,1127,1964,1990]" metricMagnitude="-3" metricUnit="m" metricValue="2.2" pageId="33" pageNumber="234" unit="mm" value="2.2">2.2 µm</quantity>
|
||
width; paired actines 158.5 ±
|
||
<quantity id="1E6E65FEFFF4FF99E9ADD6EDFE994B8E" box="[174,268,2000,2026]" metricMagnitude="-2" metricUnit="m" metricValue="8.22" pageId="33" pageNumber="234" unit="mm" value="82.2">82.2 µm</quantity>
|
||
length, 8.4 ±
|
||
<quantity id="1E6E65FEFFF4FF99E8A4D6EDFE624B8E" box="[423,503,2000,2026]" metricMagnitude="-3" metricUnit="m" metricValue="2.4" pageId="33" pageNumber="234" unit="mm" value="2.4">2.4 µm</quantity>
|
||
width (
|
||
<tableCitation id="9414FDA0FFF4FF99EB4FD6EDFD254B8E" box="[588,688,2000,2026]" captionStart="TABLE 11" captionStartId="34.[151,239,874,898]" captionTargetPageId="34" captionText="TABLE 11. Spicule measurements of Megapogon villosus (lectotype BMNH-1907.8.6.146). Measurements from the original description by Jenkin (1908) are included below." httpUri="http://table.plazi.org/id/8DE99893FFF7FF9AE994D257FD6F4FC3" pageId="33" pageNumber="234" tableUuid="8DE99893FFF7FF9AE994D257FD6F4FC3">Table 11</tableCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF7FF9AE9C4D1A4FF574D7B" blockId="34.[151,1437,153,827]" pageId="34" pageNumber="235">
|
||
<emphasis id="EBE21409FFF7FF9AE9C4D1A4FEAA4CD7" box="[199,319,153,179]" italics="true" pageId="34" pageNumber="235">Chiactines</emphasis>
|
||
: unpaired actines straight and longer than the paired actines. Apical actine straight, slightly slender, and sharply pointed (
|
||
<figureCitation id="41ADD49EFFF7FF9AE880D180FE704CB3" box="[387,485,188,215]" captionStart="FIGURE 15" captionStartId="33.[151,250,1137,1162]" captionTargetBox="[151,1402,166,1117]" captionTargetId="figure@33.[151,1402,166,1117]" captionTargetPageId="33" captionText="FIGURE 15A–D: Megapogon villosus. A: SEM image of atrial layer. B–D: SEM images of spicules; fragmented diactine and cortical triactines (B), microdiactine (C), chiactine (D). Abbreviations: Chi = chiactines; Ctr = cortical triactines; Di= diactines; Mic = microdiactines; Exa = exhalant aperture; Tri = triactines." httpUri="https://zenodo.org/record/3244660/files/figure.png" pageId="34" pageNumber="235">Fig 15D</figureCitation>
|
||
). Size: unpaired actines 466.8 ±
|
||
<quantity id="1E6E65FEFFF7FF9AEA57D180FC274CB3" box="[852,946,189,215]" metricMagnitude="-2" metricUnit="m" metricValue="8.04" pageId="34" pageNumber="235" unit="mm" value="80.4">80.4 µm</quantity>
|
||
length, 11.9 ±
|
||
<quantity id="1E6E65FEFFF7FF9AED58D180FB3E4CB3" box="[1115,1195,189,215]" metricMagnitude="-3" metricUnit="m" metricValue="2.9" pageId="34" pageNumber="235" unit="mm" value="2.9">2.9 µm</quantity>
|
||
width; paired actines 199.0 ±
|
||
<quantity id="1E6E65FEFFF7FF9AE9F6D1DCFEC14C9F" box="[245,340,225,251]" metricMagnitude="-2" metricUnit="m" metricValue="6.909999999999999" pageId="34" pageNumber="235" unit="mm" value="69.1">69.1 µm</quantity>
|
||
length, 10.7 ±
|
||
<quantity id="1E6E65FEFFF7FF9AEB02D1DCFDC74C9F" box="[513,594,225,251]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" pageId="34" pageNumber="235" unit="mm" value="1.8">1.8 µm</quantity>
|
||
width; apical actines 121.3 ± 33.0 µm length, 10.4 ± 2.0 µm width (
|
||
<tableCitation id="9414FDA0FFF7FF9AEC5ED1DCFF214D7B" captionStart="TABLE 11" captionStartId="34.[151,239,874,898]" captionTargetPageId="34" captionText="TABLE 11. Spicule measurements of Megapogon villosus (lectotype BMNH-1907.8.6.146). Measurements from the original description by Jenkin (1908) are included below." httpUri="http://table.plazi.org/id/8DE99893FFF7FF9AE994D257FD6F4FC3" pageId="34" pageNumber="235" tableUuid="8DE99893FFF7FF9AE994D257FD6F4FC3">Table 11</tableCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="918C9B90FFF7FF9AE9C4D015FD064DEF" pageId="34" pageNumber="235" type="distribution">
|
||
<paragraph id="D929C81BFFF7FF9AE9C4D015FDDB4D03" blockId="34.[151,1437,153,827]" pageId="34" pageNumber="235">
|
||
<emphasis id="EBE21409FFF7FF9AE9C4D015FE4A4D27" bold="true" box="[199,479,296,323]" pageId="34" pageNumber="235">Distribution and depth.</emphasis>
|
||
All the specimens included in
|
||
<bibRefCitation id="BD07B5EAFFF7FF9AEA36D014FC444D27" author="Jenkin, C. F." box="[821,977,297,323]" pageId="34" pageNumber="235" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin (1908)</bibRefCitation>
|
||
, were taken around Winter Quarters Bay, and most of them from shallow waters.
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF7FF9AE9C4D04CFD064DEF" blockId="34.[151,1437,153,827]" box="[199,659,368,395]" pageId="34" pageNumber="235">
|
||
<emphasis id="EBE21409FFF7FF9AE9C4D04CFE7B4DEF" bold="true" box="[199,494,368,395]" pageId="34" pageNumber="235">Molecular identification.</emphasis>
|
||
Not available.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="918C9B90FFF7FF9AE9C4D0A8FE294F5F" pageId="34" pageNumber="235" type="discussion">
|
||
<paragraph id="D929C81BFFF7FF9AE9C4D0A8FD5A4E7F" blockId="34.[151,1437,153,827]" pageId="34" pageNumber="235">
|
||
<emphasis id="EBE21409FFF7FF9AE9C4D0A8FEAE4DCB" bold="true" box="[199,315,405,431]" pageId="34" pageNumber="235">Remarks.</emphasis>
|
||
Among the species of
|
||
<taxonomicName id="1E96B398FFF7FF9AEB3BD0ABFD2B4DCB" authorityName="Jenkin" authorityYear="1908" box="[568,702,406,431]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="34" pageNumber="235" phylum="Porifera" rank="genus">
|
||
<emphasis id="EBE21409FFF7FF9AEB3BD0ABFD2B4DCB" box="[568,702,406,431]" italics="true" pageId="34" pageNumber="235">Megapogon</emphasis>
|
||
</taxonomicName>
|
||
described from the Antarctic,
|
||
<taxonomicName id="1E96B398FFF7FF9AED0ED0ABFB124DCB" authorityName=", Burton" authorityYear="1963" box="[1037,1159,405,431]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="34" pageNumber="235" phylum="Porifera" rank="species" species="villosus">
|
||
<emphasis id="EBE21409FFF7FF9AED0ED0ABFB124DCB" box="[1037,1159,405,431]" italics="true" pageId="34" pageNumber="235">M. villosus</emphasis>
|
||
</taxonomicName>
|
||
is the only one that presents a strongly hispid surface due to the presence of very long diactines. These diactines were difficult to measure because they were broken but based on the original description (
|
||
<bibRefCitation id="BD07B5EAFFF7FF9AEA63D0E0FC794D93" author="Jenkin, C. F." box="[864,1004,477,503]" pageId="34" pageNumber="235" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin 1908</bibRefCitation>
|
||
), they can reach up to
|
||
<quantity id="1E6E65FEFFF7FF9AEDE6D0E1FADC4D93" box="[1253,1353,476,503]" metricMagnitude="0" metricUnit="m" metricValue="1.5" pageId="34" pageNumber="235" unit="mm" value="1500.0">1500 µm</quantity>
|
||
length, which is as long as in
|
||
<taxonomicName id="1E96B398FFF7FF9AE88DD33FFD984E7F" baseAuthorityName="Polejaeff" baseAuthorityYear="1883" box="[398,525,513,539]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="34" pageNumber="235" phylum="Porifera" rank="species" species="crucifer">
|
||
<emphasis id="EBE21409FFF7FF9AE88DD33FFD984E7F" box="[398,525,513,539]" italics="true" pageId="34" pageNumber="235">M. crucifer</emphasis>
|
||
</taxonomicName>
|
||
from the
|
||
<collectingRegion id="1B5206F9FFF7FF9AEB7AD33CFD594E7F" box="[633,716,513,539]" country="Portugal" name="Acores" pageId="34" pageNumber="235">Azores</collectingRegion>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF7FF9AE9C4D318FB654E07" blockId="34.[151,1437,153,827]" pageId="34" pageNumber="235">
|
||
The four specimens examined here were the same used by
|
||
<bibRefCitation id="BD07B5EAFFF7FF9AEA76D318FB874E5B" author="Jenkin, C. F." box="[885,1042,549,575]" pageId="34" pageNumber="235" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin (1908)</bibRefCitation>
|
||
to describe the species, and those specimens labelled as cotype are now erected as
|
||
<typeStatus id="062D76B9FFF7FF9AEBBAD374FCC54E07" box="[697,848,585,611]" pageId="34" pageNumber="235" type="paralectotype">paralectotype</typeStatus>
|
||
(recommendation 74F of the ICZN).
|
||
</paragraph>
|
||
<paragraph id="D929C81BFFF7FF9AE9C4D350FE294F5F" blockId="34.[151,1437,153,827]" pageId="34" pageNumber="235">
|
||
The oscular region could not be examined, but according to
|
||
<bibRefCitation id="BD07B5EAFFF7FF9AEA64D350FB914EE3" author="Jenkin, C. F." box="[871,1028,621,647]" pageId="34" pageNumber="235" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin (1908)</bibRefCitation>
|
||
, the osculum is at the end of a collar built up by tetractines laying tangentially on the inside, with their unpaired actines pointing downwards and the apical actines projecting into the atrium. On the outside there are also tangentially arranged triactines and a few special diactines placed horizontally (
|
||
<bibRefCitation id="BD07B5EAFFF7FF9AE8EFD3E4FDEE4E97" author="Jenkin, C. F." box="[492,635,729,755]" pageId="34" pageNumber="235" pagination="1 - 49" refId="ref27105" refString="Jenkin, C. F. (1908) Porifera. III. Calcarea. National Antarctic Expedition, 1901 - 1904, Natural History, 4, Zoology, 1 - 49, pls. XXVII-XXXVIII." type="journal article" year="1908">Jenkin 1908</bibRefCitation>
|
||
). These horizontal diactines have not been mentioned before in any of the
|
||
<taxonomicName id="1E96B398FFF7FF9AE9C3D3C3FED34F73" authorityName="Jenkin" authorityYear="1908" box="[192,326,766,791]" class="Calcarea" family="Achramorphidae" genus="Megapogon" kingdom="Animalia" order="Leucosolenida" pageId="34" pageNumber="235" phylum="Porifera" rank="genus">
|
||
<emphasis id="EBE21409FFF7FF9AE9C3D3C3FED34F73" box="[192,326,766,791]" italics="true" pageId="34" pageNumber="235">Megapogon</emphasis>
|
||
</taxonomicName>
|
||
species. However, we would need more material where the oscular area is included, to examine this character in greater detail.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |