321 lines
28 KiB
XML
321 lines
28 KiB
XML
<document ID-DOI="10.5281/zenodo.170231" ID-GBIF-Dataset="256b1aaa-6882-43ab-b647-0deec14fdfcc" ID-ISSN="11755326" ID-Zenodo-Dep="170231" checkinTime="1459752579393" checkinUser="plazi" docAuthor="Lopes, Daniela A., Hajdu, Eduardo & Reiswig, Henry M." docDate="2005" docId="03C787F3FFF6FF93FE90FE71FB313601" docLanguage="en" docName="zt01066p056.pdf" docOrigin="Zootaxa 1066" docStyle="DocumentStylede.uka.ipd.idaho.easyIO.settings.Settings@291a4791" docStyleName="zootaxa.0000.journal_article" docTitle="Dactylocalyx pumiceus Stutchbury 1841" docType="treatment" docVersion="6" lastPageId="9" lastPageNumber="52" masterDocId="FFFEFF8BFFF1FF9AFF98FFF8FF893261" masterDocTitle="Redescription of two Hexactinosida (Porifera, Hexactinellida) from the southwestern Atlantic, collected by Programme REVIZEE" masterLastPageNumber="56" masterPageNumber="43" pageId="7" pageNumber="50" updateTime="1569537183303" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Redescription of two Hexactinosida (Porifera, Hexactinellida) from the southwestern Atlantic, collected by Programme REVIZEE</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Lopes, Daniela A.</mods:namePart>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Hajdu, Eduardo</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Reiswig, Henry M.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>Zootaxa</mods:title>
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<mods:part>
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<mods:date>2005</mods:date>
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<mods:detail type="volume">
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<mods:number>1066</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>43</mods:start>
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<mods:end>56</mods:end>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.5281/zenodo.170231</mods:identifier>
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<mods:identifier type="GBIF-Dataset">256b1aaa-6882-43ab-b647-0deec14fdfcc</mods:identifier>
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<mods:identifier type="ISSN">11755326</mods:identifier>
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<mods:identifier type="Zenodo-Dep">170231</mods:identifier>
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<mods:identifier type="ZooBank">BDBA174E-BEC6-4616-A74E-0518EED04DEB</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:03C787F3FFF6FF93FE90FE71FB313601" httpUri="http://treatment.plazi.org/id/03C787F3FFF6FF93FE90FE71FB313601" lastPageId="9" lastPageNumber="52" pageId="7" pageNumber="50">
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<subSubSection pageId="7" pageNumber="50" type="nomenclature">
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<paragraph blockId="7.[264,763,393,454]" box="[264,763,393,419]" pageId="7" pageNumber="50">
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<heading bold="true" box="[264,763,393,419]" fontSize="11" level="1" pageId="7" pageNumber="50" reason="1">
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<taxonomicName authority="Stutchbury, 1841" authorityName="Stutchbury" authorityYear="1841" box="[264,763,393,419]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="pumiceus">
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<emphasis bold="true" box="[264,763,393,419]" pageId="7" pageNumber="50">
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<emphasis bold="true" box="[264,542,393,419]" italics="true" pageId="7" pageNumber="50">Dactylocalyx pumiceus</emphasis>
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<bibRefCitation author="Stutchbury" box="[551,763,393,419]" pageId="7" pageNumber="55" refString="Stutchbury, S. (1841) Description of a new sponge from Barbados. Proceedings of the Royal Society (B) 9, pp. 86 - 87." type="journal article" year="1841">
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Stutchbury,
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<number box="[704,763,393,419]" pageId="7" pageNumber="50" value="1841.0">1841</number>
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</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph blockId="7.[264,763,393,454]" box="[264,477,428,454]" pageId="7" pageNumber="50">
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(
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<figureCitation box="[273,386,428,454]" captionStart-0="FIGURE 4" captionStart-1="FIGURE 5" captionStartId-0="8.[264,357,1769,1790]" captionStartId-1="9.[264,357,958,979]" captionTargetBox-0="[264,1323,457,1740]" captionTargetBox-1="[288,1272,297,869]" captionTargetId-0="figure@8.[264,1323,457,1740]" captionTargetId-1="figure@9.[264,1323,282,894]" captionTargetPageId-0="8" captionTargetPageId-1="9" captionText-0="FIGURE 4: Dactylocalyx pumiceus Stutchbury, 1841. A. preserved specimen (MNRJ 3253). B – F, SEM. B. dermal surface. C. discohexaster. D. terminal disc of discohexaster. E. onychexaster. F. terminal disc of onychexaster (Scale bars: A = 20 mm, B = 500 μm, C, E = 10 μm, D, F = 2 μm)." captionText-1="FIGURE 5: Free megascleres of Dactylocalyx pumiceus Stutchbury, 1841. A. pentactins. B. hexactins (Scale bars = 100 μm)." httpUri-0="https://zenodo.org/record/170234/files/figure.png" httpUri-1="https://zenodo.org/record/170235/files/figure.png" pageId="7" pageNumber="50">
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Figs.
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<number box="[339,386,428,454]" pageId="7" pageNumber="50" value="4.5" valueMax="5.0" valueMin="4.0">4–5</number>
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</figureCitation>
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, Tab II)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="50" type="materials_examined">
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<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
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<emphasis bold="true" box="[264,512,507,533]" pageId="7" pageNumber="50">Material examined.</emphasis>
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<collectionCode box="[524,602,508,534]" httpUri="http://grbio.org/cool/zi1i-a0b5" name="Museu Nacional/Universidade Federal de Rio de Janeiro" pageId="7" pageNumber="50">MNRJ</collectionCode>
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<number box="[614,673,508,534]" pageId="7" pageNumber="50" value="1499.0">1499</number>
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and
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<collectionCode box="[738,816,508,534]" httpUri="http://grbio.org/cool/zi1i-a0b5" name="Museu Nacional/Universidade Federal de Rio de Janeiro" pageId="7" pageNumber="50">MNRJ</collectionCode>
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<number box="[828,889,508,534]" pageId="7" pageNumber="50" value="3253.0">3253</number>
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, Almirante Saldanha seamount (off Cape
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<collectingCountry box="[331,450,548,574]" name="Sao Tome and Principe" pageId="7" pageNumber="50">São Tomé</collectingCountry>
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, Rio de Janeiro State,
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<geoCoordinate box="[709,819,548,574]" direction="south" orientation="latitude" pageId="7" pageNumber="50" precision="55" value="-22.376">
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<number box="[709,790,548,574]" pageId="7" pageNumber="50" value="22.376">22.376</number>
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º S
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</geoCoordinate>
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–
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<geoCoordinate box="[835,964,548,574]" direction="west" orientation="longitude" pageId="7" pageNumber="50" precision="55" value="-37.659">
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<number box="[835,917,548,574]" pageId="7" pageNumber="50" value="37.659">37.659</number>
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º W
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</geoCoordinate>
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), Central II cruise, station
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<number box="[1273,1304,548,574]" pageId="7" pageNumber="50" value="37.0">37</number>
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c,
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<quantity box="[264,331,588,614]" metricMagnitude="2" metricUnit="m" metricValue="5.52" pageId="7" pageNumber="50" unit="m" value="552.0">552m</quantity>
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depth, coll. R.V. “Astro Garoupa”,
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<date box="[749,865,588,614]" pageId="7" pageNumber="50" value="1997-11-06">
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<number box="[749,763,588,614]" pageId="7" pageNumber="50" value="6.0">6</number>
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/xi/
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<number box="[806,865,588,614]" pageId="7" pageNumber="50" value="1997.0">1997</number>
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</date>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="50" type="diagnosis">
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<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
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<emphasis bold="true" box="[312,439,627,653]" pageId="7" pageNumber="50">Diagnosis.</emphasis>
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<taxonomicName box="[447,602,628,653]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="genus">
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<emphasis box="[447,602,628,653]" italics="true" pageId="7" pageNumber="50">Dactylocalyx</emphasis>
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</taxonomicName>
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with thick walls composed of a dense network of irregularly branching and anastomosing tubules of small calibre (
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<quantity box="[894,1030,668,694]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" metricValueMax="1.5" metricValueMin="0.5" pageId="7" pageNumber="50" unit="mm" value="1.0" valueMax="1.5" valueMin="0.5">0.5–1.5mm</quantity>
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lumen), completely penetrating the body wall; deep, round or oval holes, or longitudinally oriented grooves (
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<quantity metricMagnitude="-3" metricUnit="m" metricValue="6.5" metricValueMax="11.0" metricValueMin="2.0" pageId="7" pageNumber="50" unit="mm" value="6.5" valueMax="11.0" valueMin="2.0">2 11mm</quantity>
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wide) which incompletely penetrate the body wall. Microscleres are spherical discohexasters and rare onychexasters.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="50" type="description">
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<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
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<emphasis bold="true" box="[312,464,828,854]" pageId="7" pageNumber="50">Description.</emphasis>
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Specimens composed of fragments, the largest one has
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<date box="[1176,1234,828,854]" pageId="7" pageNumber="50" value="1967-10">
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<number box="[1176,1205,828,854]" pageId="7" pageNumber="50" value="67.0">67</number>
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x
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</date>
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||
<quantity box="[1248,1323,828,854]" metricMagnitude="-2" metricUnit="m" metricValue="3.4" pageId="7" pageNumber="50" unit="mm" value="34.0">34mm</quantity>
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(length x width;
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<figureCitation box="[470,543,868,894]" captionStart="FIGURE 4" captionStartId="8.[264,357,1769,1790]" captionTargetBox="[264,1323,457,1740]" captionTargetId="figure@8.[264,1323,457,1740]" captionTargetPageId="8" captionText="FIGURE 4: Dactylocalyx pumiceus Stutchbury, 1841. A. preserved specimen (MNRJ 3253). B – F, SEM. B. dermal surface. C. discohexaster. D. terminal disc of discohexaster. E. onychexaster. F. terminal disc of onychexaster (Scale bars: A = 20 mm, B = 500 μm, C, E = 10 μm, D, F = 2 μm)." httpUri="https://zenodo.org/record/170234/files/figure.png" pageId="7" pageNumber="50">
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||
Fig.
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||
<number box="[527,543,868,894]" pageId="7" pageNumber="50" value="4.0">4</number>
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||
</figureCitation>
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||
A). Consistency rigid and fragile. Body wall penetrated on both outer and inner surfaces by deep circular pits or longitudinallyoriented meandering grooves (
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||
<number box="[372,435,948,974]" pageId="7" pageNumber="50" value="4.1" valueMax="6.2" valueMin="2.0">26.2</number>
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||
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||
<quantity box="[444,518,948,974]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="7" pageNumber="50" unit="mm" value="11.0">11mm</quantity>
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wide); all framework surface completely porous, consisting of openings of small calibre tubes with lumen
|
||
<number box="[759,843,988,1014]" pageId="7" pageNumber="50" value="0.85" valueMax="1.2" valueMin="0.5">0.51.2</number>
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|
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<quantity box="[852,935,988,1014]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="7" pageNumber="50" unit="mm" value="1.5">1.5mm</quantity>
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||
in diameter; tubules extending throughout body wall, branching and anastomosing.
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||
</paragraph>
|
||
<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
|
||
<emphasis bold="true" box="[312,426,1068,1094]" pageId="7" pageNumber="50">Skeleton.</emphasis>
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||
Dictyonal framework with beams coarsely tuberculate,
|
||
<number box="[1081,1171,1068,1094]" pageId="7" pageNumber="50" value="44.45" valueMax="48.9" valueMin="40.0">4048.9</number>
|
||
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||
<quantity box="[1179,1250,1068,1094]" metricMagnitude="1" metricUnit="m" metricValue="6.0" pageId="7" pageNumber="50" unit="m" value="60.0">60 m</quantity>
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||
thick, mesh sides
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||
<number box="[399,518,1108,1134]" pageId="7" pageNumber="50" value="237.3" valueMax="274.6" valueMin="200.0">200274.6</number>
|
||
|
||
<quantity box="[527,612,1108,1134]" metricMagnitude="2" metricUnit="m" metricValue="3.75" pageId="7" pageNumber="50" unit="m" value="375.0">375 m</quantity>
|
||
(
|
||
<figureCitation box="[628,700,1108,1134]" captionStart="FIGURE 4" captionStartId="8.[264,357,1769,1790]" captionTargetBox="[264,1323,457,1740]" captionTargetId="figure@8.[264,1323,457,1740]" captionTargetPageId="8" captionText="FIGURE 4: Dactylocalyx pumiceus Stutchbury, 1841. A. preserved specimen (MNRJ 3253). B – F, SEM. B. dermal surface. C. discohexaster. D. terminal disc of discohexaster. E. onychexaster. F. terminal disc of onychexaster (Scale bars: A = 20 mm, B = 500 μm, C, E = 10 μm, D, F = 2 μm)." httpUri="https://zenodo.org/record/170234/files/figure.png" pageId="7" pageNumber="50">
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||
Fig.
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||
<number box="[683,700,1108,1134]" pageId="7" pageNumber="50" value="4.0">4</number>
|
||
</figureCitation>
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||
B).
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||
</paragraph>
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||
<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
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||
<emphasis bold="true" box="[312,414,1148,1174]" pageId="7" pageNumber="50">Spicules</emphasis>
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(Table II). Free megascleres: large pentactins (
|
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<figureCitation box="[982,1053,1148,1174]" captionStart="FIGURE 5" captionStartId="9.[264,357,958,979]" captionTargetBox="[288,1272,297,869]" captionTargetId="figure@9.[264,1323,282,894]" captionTargetPageId="9" captionText="FIGURE 5: Free megascleres of Dactylocalyx pumiceus Stutchbury, 1841. A. pentactins. B. hexactins (Scale bars = 100 μm)." httpUri="https://zenodo.org/record/170235/files/figure.png" pageId="7" pageNumber="50">
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Fig.
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<number box="[1039,1053,1148,1174]" pageId="7" pageNumber="50" value="5.0">5</number>
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</figureCitation>
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A) and hexactins (
|
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<figureCitation captionStart="FIGURE 5" captionStartId="9.[264,357,958,979]" captionTargetBox="[288,1272,297,869]" captionTargetId="figure@9.[264,1323,282,894]" captionTargetPageId="9" captionText="FIGURE 5: Free megascleres of Dactylocalyx pumiceus Stutchbury, 1841. A. pentactins. B. hexactins (Scale bars = 100 μm)." httpUri="https://zenodo.org/record/170235/files/figure.png" pageId="7" pageNumber="50">
|
||
Fig.
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||
<number box="[264,278,1188,1214]" pageId="7" pageNumber="50" value="5.0">5</number>
|
||
</figureCitation>
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||
B) with proximal rays always broken off; pentactins with tangential and proximal rays smooth or microspined, cylindrical or clubshaped, and straight or sinuous; hexactins with clubshaped tangential and distal rays, and acute proximal ray, smooth or microspined and straight or sinuous. Microscleres: abundant spherical discohexasters with short primary rays bearing
|
||
<number box="[423,468,1348,1374]" pageId="7" pageNumber="50" value="4.5" valueMax="5.0" valueMin="4.0">4–5</number>
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||
straight, microspined secondary rays (
|
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<figureCitation box="[941,1015,1348,1374]" captionStart="FIGURE 4" captionStartId="8.[264,357,1769,1790]" captionTargetBox="[264,1323,457,1740]" captionTargetId="figure@8.[264,1323,457,1740]" captionTargetPageId="8" captionText="FIGURE 4: Dactylocalyx pumiceus Stutchbury, 1841. A. preserved specimen (MNRJ 3253). B – F, SEM. B. dermal surface. C. discohexaster. D. terminal disc of discohexaster. E. onychexaster. F. terminal disc of onychexaster (Scale bars: A = 20 mm, B = 500 μm, C, E = 10 μm, D, F = 2 μm)." httpUri="https://zenodo.org/record/170234/files/figure.png" pageId="7" pageNumber="50">
|
||
Fig.
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||
<number box="[1000,1015,1348,1374]" pageId="7" pageNumber="50" value="4.0">4</number>
|
||
</figureCitation>
|
||
C –D); rare onychexasters with microspined secondary rays (
|
||
<figureCitation box="[667,737,1388,1414]" captionStart="FIGURE 4" captionStartId="8.[264,357,1769,1790]" captionTargetBox="[264,1323,457,1740]" captionTargetId="figure@8.[264,1323,457,1740]" captionTargetPageId="8" captionText="FIGURE 4: Dactylocalyx pumiceus Stutchbury, 1841. A. preserved specimen (MNRJ 3253). B – F, SEM. B. dermal surface. C. discohexaster. D. terminal disc of discohexaster. E. onychexaster. F. terminal disc of onychexaster (Scale bars: A = 20 mm, B = 500 μm, C, E = 10 μm, D, F = 2 μm)." httpUri="https://zenodo.org/record/170234/files/figure.png" pageId="7" pageNumber="50">
|
||
Fig.
|
||
<number box="[722,737,1388,1414]" pageId="7" pageNumber="50" value="4.0">4</number>
|
||
</figureCitation>
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E –F); no oxyhexasters.
|
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</paragraph>
|
||
</subSubSection>
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||
<subSubSection pageId="7" pageNumber="50" type="distribution">
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||
<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
|
||
<emphasis bold="true" box="[312,472,1428,1454]" pageId="7" pageNumber="50">Distribution.</emphasis>
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The distribution of the species is western Atlantic, from
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<collectingCountry box="[1172,1243,1428,1454]" name="Brazil" pageId="7" pageNumber="50">Brazil</collectingCountry>
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||
to the Caribbean, from depths of
|
||
<quantity box="[586,741,1468,1494]" metricMagnitude="3" metricUnit="m" metricValue="1.0285" metricValueMax="1.966" metricValueMin="0.091" pageId="7" pageNumber="50" unit="m" value="1028.5" valueMax="1966.0" valueMin="91.0">91 to 1966m</quantity>
|
||
. The southwestern Atlantic bathymetric distribution of
|
||
<taxonomicName box="[349,496,1508,1533]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="pumiceus">
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||
<emphasis box="[349,496,1508,1533]" italics="true" pageId="7" pageNumber="50">D. pumiceus</emphasis>
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||
</taxonomicName>
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||
was increased from
|
||
<quantity box="[738,804,1508,1534]" metricMagnitude="2" metricUnit="m" metricValue="1.88" pageId="7" pageNumber="50" unit="m" value="188.0">188m</quantity>
|
||
(Mothes de
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||
<bibRefCitation author="Moraes" box="[952,1115,1508,1534]" pageId="7" pageNumber="54" refString="Mothes de Moraes, B. (1977) Ocorrencia de Dactylocalyx pumiceus Stutchbury, 1841, no litoral do Rio Grande do Sul (Porifera, Hexactinellida). Inheringia (Zoologia), 50, pp. 41 - 50." type="journal article" year="1977">
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||
Moraes,
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||
<number box="[1055,1115,1508,1534]" pageId="7" pageNumber="50" value="1977.0">1977</number>
|
||
</bibRefCitation>
|
||
) to
|
||
<quantity box="[1161,1228,1508,1534]" metricMagnitude="2" metricUnit="m" metricValue="5.52" pageId="7" pageNumber="50" unit="m" value="552.0">552m</quantity>
|
||
deep.
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</paragraph>
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||
</subSubSection>
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<subSubSection lastPageId="8" lastPageNumber="51" pageId="7" pageNumber="50" type="discussion">
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<paragraph blockId="7.[264,1323,507,1894]" pageId="7" pageNumber="50">
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||
<emphasis bold="true" box="[312,433,1548,1574]" pageId="7" pageNumber="50">Remarks.</emphasis>
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The genus
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<taxonomicName box="[573,728,1548,1573]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="genus">
|
||
<emphasis box="[573,728,1548,1573]" italics="true" pageId="7" pageNumber="50">Dactylocalyx</emphasis>
|
||
</taxonomicName>
|
||
contains only two valid species,
|
||
<taxonomicName box="[1124,1272,1548,1573]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[1124,1272,1548,1573]" italics="true" pageId="7" pageNumber="50">D. pumiceus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authority="Gray, 1867" authorityName="Gray" authorityYear="1867" box="[264,588,1588,1614]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="subglobosus">
|
||
<emphasis box="[264,446,1588,1613]" italics="true" pageId="7" pageNumber="50">D. subglobosus</emphasis>
|
||
<bibRefCitation author="Gray" box="[454,588,1588,1614]" pageId="7" pageNumber="54" refString="Gray, J. E. (1867). Notes on the arrangement of sponges, with the description of some new genera. Proceedings of the Zoological Society of London, 1867 (2), 492 - 558, pls. XXVII - XXVIII." type="journal article" year="1867">
|
||
Gray,
|
||
<number box="[526,588,1588,1614]" pageId="7" pageNumber="50" value="1867.0">1867</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
. Similarity in body form of the two species supports the argument that
|
||
<taxonomicName box="[388,573,1628,1653]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="subglobosus">
|
||
<emphasis box="[388,573,1628,1653]" italics="true" pageId="7" pageNumber="50">D. subglobosus</emphasis>
|
||
</taxonomicName>
|
||
might be a synonym of
|
||
<taxonomicName box="[879,1030,1628,1653]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[879,1030,1628,1653]" italics="true" pageId="7" pageNumber="50">D. pumiceus</emphasis>
|
||
</taxonomicName>
|
||
, but the respective
|
||
<typeStatus box="[1272,1323,1628,1654]" pageId="7" pageNumber="50">type</typeStatus>
|
||
specimens differ in microsclere contents—two classes of discohexasters in
|
||
<taxonomicName box="[1142,1322,1668,1693]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="subglobosus">
|
||
<emphasis box="[1142,1322,1668,1693]" italics="true" pageId="7" pageNumber="50">D. subglobosus</emphasis>
|
||
</taxonomicName>
|
||
versus one in
|
||
<taxonomicName authority="Reiswig, 1991" authorityName="Reiswig" authorityYear="1991" box="[426,772,1708,1734]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[426,573,1708,1733]" italics="true" pageId="7" pageNumber="50">D. pumiceus</emphasis>
|
||
(Reiswig,
|
||
<number box="[700,763,1708,1734]" pageId="7" pageNumber="50" value="1991.0">1991</number>
|
||
)
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph blockId="7.[264,1323,507,1894]" lastBlockId="8.[264,1322,284,398]" lastPageId="8" lastPageNumber="51" pageId="7" pageNumber="50">
|
||
<taxonomicName box="[312,587,1748,1773]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="7" pageNumber="50" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[312,587,1748,1773]" italics="true" pageId="7" pageNumber="50">Dactylocalyx pumiceus</emphasis>
|
||
</taxonomicName>
|
||
shows a remarkable discontinuity in its geographic distribution in the western Atlantic, with a large gap (over
|
||
<quantity box="[867,966,1788,1814]" metricMagnitude="6" metricUnit="m" metricValue="5.5" pageId="7" pageNumber="50" unit="km" value="5500.0">5500km</quantity>
|
||
) between southeastern Brazilian specimens described here and its previously known southern Caribbean records. Part of this gap was corroborated by trawling (
|
||
<quantity box="[760,902,1868,1894]" metricMagnitude="3" metricUnit="m" metricValue="1.279" metricValueMax="2.1369999999999996" metricValueMin="0.421" pageId="7" pageNumber="50" unit="m" value="1279.0" valueMax="2137.0" valueMin="421.0">421–2137m</quantity>
|
||
deep) made by the R.V. "Thalassa" all along Bahia State (
|
||
<number box="[520,594,292,318]" pageId="8" pageNumber="51" value="15.0" valueMax="18.0" valueMin="12.0">12–18</number>
|
||
o S) in the scope of Programme REVIZEE, which failed to find
|
||
<taxonomicName box="[264,416,332,357]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="8" pageNumber="51" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[264,416,332,357]" italics="true" pageId="8" pageNumber="51">D. pumiceus</emphasis>
|
||
</taxonomicName>
|
||
in the area, in spite of collecting other basiphytose hexactinellids (to be reported upon elsewhere).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption httpUri="https://zenodo.org/record/170234/files/figure.png" pageId="8" pageNumber="51" targetBox="[264,1323,457,1740]" targetPageId="8">
|
||
<paragraph blockId="8.[264,1322,1766,1865]" pageId="8" pageNumber="51">
|
||
<emphasis bold="true" box="[264,384,1769,1790]" pageId="8" pageNumber="51">FIGURE 4:</emphasis>
|
||
<taxonomicName authority="Stutchbury, 1841" authorityName="Stutchbury" authorityYear="1841" box="[393,792,1770,1791]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="8" pageNumber="51" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[393,618,1770,1791]" italics="true" pageId="8" pageNumber="51">
|
||
<taxonomicName box="[393,519,1770,1791]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" higherTaxonomySource="CoL" kingdom="Animalia" order="Hexactinosida" pageId="8" pageNumber="51" phylum="Porifera" rank="genus">Dactylocalyx</taxonomicName>
|
||
<taxonomicName authority="Stutchbury" authorityName="Stutchbury" authorityYear="1841" box="[527,618,1770,1791]" pageId="8" pageNumber="51" rank="species" species="pumiceus">pumiceus</taxonomicName>
|
||
</emphasis>
|
||
Stutchbury, 1841
|
||
</taxonomicName>
|
||
. A. preserved specimen (MNRJ 3253). B –F, SEM. B. dermal surface.
|
||
<taxonomicName box="[420,582,1806,1827]" class="Hexactinellida" family="Rossellidae" genus="Caulophacus" kingdom="Animalia" order="Lyssacinosida" pageId="8" pageNumber="51" phylum="Porifera" rank="species" species="discohexaster">
|
||
C.
|
||
<taxonomicName box="[450,582,1806,1827]" pageId="8" pageNumber="51" rank="species" species="discohexaster">discohexaster</taxonomicName>
|
||
</taxonomicName>
|
||
. D. terminal disc of
|
||
<taxonomicName box="[783,915,1806,1827]" class="Hexactinellida" family="Rossellidae" genus="Caulophacus" kingdom="Animalia" order="Lyssacinosida" pageId="8" pageNumber="51" phylum="Porifera" rank="species" species="discohexaster">discohexaster</taxonomicName>
|
||
. E. onychexaster. F. terminal disc of onychexaster (Scale bars: A= 20mm, B = 500μm, C, E = 10μm, D, F = 2μm).
|
||
</paragraph>
|
||
</caption>
|
||
<caption httpUri="https://zenodo.org/record/170235/files/figure.png" pageId="9" pageNumber="52" targetBox="[288,1272,297,869]" targetPageId="9">
|
||
<paragraph blockId="9.[264,1322,958,1011]" pageId="9" pageNumber="52">
|
||
<emphasis bold="true" box="[264,383,958,979]" pageId="9" pageNumber="52">FIGURE 5:</emphasis>
|
||
Free megascleres of
|
||
<taxonomicName authority="Stutchbury, 1841" authorityName="Stutchbury" authorityYear="1841" box="[590,987,958,979]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="9" pageNumber="52" phylum="Porifera" rank="species" species="pumiceus">
|
||
<taxonomicName box="[590,814,958,979]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" higherTaxonomySource="CoL" kingdom="Animalia" order="Hexactinosida" pageId="9" pageNumber="52" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[590,814,958,979]" italics="true" pageId="9" pageNumber="52">
|
||
<taxonomicName box="[590,716,958,979]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" higherTaxonomySource="CoL" kingdom="Animalia" order="Hexactinosida" pageId="9" pageNumber="52" phylum="Porifera" rank="genus">Dactylocalyx</taxonomicName>
|
||
<taxonomicName authority="Stutchbury" authorityName="Stutchbury" authorityYear="1841" box="[724,814,958,979]" pageId="9" pageNumber="52" rank="species" species="pumiceus">pumiceus</taxonomicName>
|
||
</emphasis>
|
||
</taxonomicName>
|
||
Stutchbury, 1841
|
||
</taxonomicName>
|
||
. A. pentactins. B. hexactins (Scale bars = 100μm).
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection pageId="9" pageNumber="52" type="description">
|
||
<paragraph blockId="9.[264,1323,1062,1125]" pageId="9" pageNumber="52">
|
||
<emphasis bold="true" box="[264,398,1062,1086]" pageId="9" pageNumber="52">
|
||
<collectionCode box="[264,352,1062,1086]" pageId="9" pageNumber="52">TABLE</collectionCode>
|
||
II:
|
||
</emphasis>
|
||
Spicule dimensions of
|
||
<taxonomicName authority="Stutchbury, 1841" authorityName="Stutchbury" authorityYear="1841" box="[685,1152,1062,1086]" class="Hexactinellida" family="Dactylocalycidae" genus="Dactylocalyx" kingdom="Animalia" order="Hexactinosida" pageId="9" pageNumber="52" phylum="Porifera" rank="species" species="pumiceus">
|
||
<emphasis box="[685,943,1063,1086]" italics="true" pageId="9" pageNumber="52">Dactylocalyx pumiceus</emphasis>
|
||
<bibRefCitation author="Stutchbury" box="[959,1152,1062,1085]" pageId="9" pageNumber="55" refString="Stutchbury, S. (1841) Description of a new sponge from Barbados. Proceedings of the Royal Society (B) 9, pp. 86 - 87." type="journal article" year="1841">
|
||
Stutchbury,
|
||
<number box="[1096,1152,1062,1085]" pageId="9" pageNumber="52" value="1841.0">1841</number>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
. Measures are expressed in m as: smaller meanlargerN. Ln = Length, Wd = width, Diam = diameter.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |