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<document id="0C4470609F518F11C8FCA766D5127DDD" ID-CLB-Dataset="25821" ID-DOI="10.11646/zootaxa.4664.1.2" ID-GBIF-Dataset="aa4ab61b-5bb7-4a74-857b-e92447ed1425" ID-ISSN="1175-5326" ID-Zenodo-Dep="3383496" ID-ZooBank="4434E866-7C52-48D1-9A6B-1E6220D71549" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1567407317765" checkinUser="plazi" docAuthor="Tabachnick, Konstantin, Fromont, Jane, Ehrlich, Hermann &amp; Menshenina, Larisa" docDate="2019" docId="787DF422D232AC78FDAA9037FB04FDAB" docLanguage="en" docName="zootaxa.4664.1.2.pdf" docOrigin="Zootaxa 4664 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Rhabdocalyptus gomezi Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina 2019, sp. nov." docType="treatment" docUuid="753E0CF3-DBEF-4A46-8ACC-8480C0B4B1F5" docUuidSource="ZooBank" docVersion="10" lastPageNumber="73" masterDocId="84448C5AD225AC62FD3D950AFFE4FFC8" masterDocTitle="Hexactinellida from the Perth Canyon, Eastern Indian Ocean, with descriptions of five new species" masterLastPageNumber="82" masterPageNumber="47" pageNumber="70" updateTime="1698753542198" updateUser="ExternalLinkService">
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<mods:title id="DECF8E73B62446D2FBCA3F2A076BE798">Hexactinellida from the Perth Canyon, Eastern Indian Ocean, with descriptions of five new species</mods:title>
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<mods:namePart id="17EB4E4DB6B4671472AEA964E37FFA84">Tabachnick, Konstantin</mods:namePart>
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<mods:namePart id="8687141D40D970784CEFFCBF1FEE087F">Fromont, Jane</mods:namePart>
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<mods:namePart id="65CD05ACF8A4A81D825F332FBCBDBD15">Ehrlich, Hermann</mods:namePart>
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<mods:namePart id="FC353BC3ACBD7E4C04E41B2587F64571">Menshenina, Larisa</mods:namePart>
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<treatment id="787DF422D232AC78FDAA9037FB04FDAB" ID-DOI="http://doi.org/10.5281/zenodo.5667859" ID-GBIF-Taxon="159349013" ID-Zenodo-Dep="5667859" LSID="urn:lsid:zoobank.org:act:753E0CF3-DBEF-4A46-8ACC-8480C0B4B1F5" httpUri="http://treatment.plazi.org/id/787DF422D232AC78FDAA9037FB04FDAB" lastPageId="26" lastPageNumber="73" pageId="23" pageNumber="70">
<subSubSection id="B8CE16BFD232AC75FDAA9037FC37FABC" pageId="23" pageNumber="70" type="nomenclature">
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<emphasis id="C2A09926D232AC75FDAA9037FCACFA9F" bold="true" box="[151,840,1341,1368]" pageId="23" pageNumber="70">
<taxonomicName id="37D43EB7D232AC75FDAA9037FD07FA9F" ID-CoL="85XS6" authority="Tabachnick &amp; Fromont" authorityName="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina" authorityYear="2019" box="[151,739,1341,1368]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="23" pageNumber="70" phylum="Porifera" rank="species" species="gomezi" status="sp. nov.">
<emphasis id="C2A09926D232AC75FDAA9037FE51FA9F" bold="true" box="[151,437,1341,1368]" italics="true" pageId="23" pageNumber="70">Rhabdocalyptus gomezi</emphasis>
Tabachnick &amp; Fromont
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<taxonomicNameLabel id="D993245DD232AC75FFD79037FCACFA9F" box="[746,840,1341,1367]" pageId="23" pageNumber="70" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
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urn:lsid:zoobank.org:act:
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<subSubSection id="B8CE16BFD232AC78FDAA90ABFB04FDAB" lastPageId="26" lastPageNumber="73" pageId="23" pageNumber="70" type="materials_examined">
<paragraph id="F06B4534D232AC75FDAA90ABFF3CF9CC" blockId="23.[151,1437,1441,2045]" pageId="23" pageNumber="70">
<emphasis id="C2A09926D232AC75FDAA90ABFE98FA74" bold="true" box="[151,380,1441,1468]" pageId="23" pageNumber="70">Material examined</emphasis>
.
<materialsCitation id="40BC4F69D232AC75FCB190A8FF3CF9CC" ID-GBIF-Occurrence="2382327794" collectingDate="2015-03-06" collectionCode="WAM" collectorName="Site B &amp; A. Hosie &amp; RV Falkor" country="Australia" elevation="936" latitude="-31.975414" location="Falkor station" longLatPrecision="1" longitude="115.088394" pageId="23" pageNumber="70" specimenCount="1" stateProvince="Western Australia" typeStatus="holotype">
<typeStatus id="2F6FFB96D232AC75FCB190A8FE10FA74" box="[396,500,1442,1468]" pageId="23" pageNumber="70" type="holotype">Holotype</typeStatus>
(
<collectionCode id="96C5DDF1D232AC75FF3890A8FDA8FA74" box="[517,588,1442,1468]" country="Australia" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34981" lsid="urn:lsid:biocol.org:col:34981" name="Western Australian Museum" pageId="23" pageNumber="70" type="Museum">WAM</collectionCode>
Z92506).
<collectingCountry id="88C305A4D232AC75FFF890A8FCD4FA74" box="[709,816,1442,1468]" name="Australia" pageId="23" pageNumber="70">Australia</collectingCountry>
:
<collectingRegion id="32108BD6D232AC75FE0190A9FBEEFA74" box="[828,1034,1442,1469]" country="Australia" name="Western Australia" pageId="23" pageNumber="70">Western Australia</collectingRegion>
:
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, Perth Canyon,
<collectorName id="5D2120E2D232AC75F86890A8FA79FA75" box="[1365,1437,1442,1469]" pageId="23" pageNumber="70">Site B</collectorName>
(
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31
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5831.488S
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,
<geoCoordinate id="95E023F3D232AC75FC5890CFFDFBFA28" box="[357,543,1477,1504]" degrees="115" direction="east" minutes="5" orientation="longitude" pageId="23" pageNumber="70" precision="1" seconds="18.204" value="115.088394">
115
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518.204E
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,
<figureCitation id="68EF59B1D232AC75FF1490CCFD62FA28" box="[553,646,1478,1504]" captionStart="FIGURE 1" captionStartId="2.[151,250,1358,1383]" captionTargetBox="[156,1410,514,1329]" captionTargetId="figure@2.[151,1420,504,1339]" captionTargetPageId="2" captionText="FIGURE 1. Map of Perth Canyon. Triangles are RV Falkor stations and circles are RV Southern Surveyor stations." httpUri="https://zenodo.org/record/3383498/files/figure.png" pageId="23" pageNumber="70">Figure 1</figureCitation>
),
<quantity id="372CE8D1D232AC75FFA390CCFD03FA29" box="[670,743,1478,1505]" metricMagnitude="2" metricUnit="m" metricValue="9.36" pageId="23" pageNumber="70" unit="m" value="936.0">
<elevation id="7BF9A207D232AC75FFA390CCFD03FA29" box="[670,743,1478,1505]" metricMagnitude="2" metricUnit="m" metricValue="9.36" pageId="23" pageNumber="70" unit="m" value="936.0">936 m</elevation>
</quantity>
,
<collectorName id="5D2120E2D232AC75FFCD90CCFCB2FA28" box="[752,854,1478,1504]" pageId="23" pageNumber="70">A. Hosie</collectorName>
, ROV,
<date id="846A63F4D232AC75FE9B90CFFBCCFA28" box="[934,1064,1477,1504]" pageId="23" pageNumber="70" value="2015-03-06">
<collectingDate id="942E9A1CD232AC75FE9B90CFFBCCFA28" box="[934,1064,1477,1504]" pageId="23" pageNumber="70" value="2015-03-06">06/03/2015</collectingDate>
</date>
,
<collectorName id="5D2120E2D232AC75F90E90CDFB4EFA28" box="[1075,1194,1478,1505]" pageId="23" pageNumber="70">
RV
<emphasis id="C2A09926D232AC75F96390CCFB4EFA28" box="[1118,1194,1478,1504]" italics="true" pageId="23" pageNumber="70">
<location id="F50B13EFD232AC75F96390CCFB4EFA28" LSID="urn:lsid:plazi:treatment:787DF422D232AC78FDAA9037FB04FDAB:F50B13EFD232AC75F96390CCFB4EFA28" box="[1118,1194,1478,1504]" country="Australia" latitude="-31.975414" longLatPrecision="1" longitude="115.088394" name="Falkor station" pageId="23" pageNumber="70" stateProvince="Western Australia">Falkor</location>
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station FPC15_D04_ S001.
</materialsCitation>
</paragraph>
<paragraph id="F06B4534D232AC75FDFA9307FA66F9B8" blockId="23.[151,1437,1441,2045]" pageId="23" pageNumber="70">
<emphasis id="C2A09926D232AC75FDFA9307FE47F9E0" bold="true" box="[199,419,1549,1576]" pageId="23" pageNumber="70">Description. Body,</emphasis>
<figureCitation id="68EF59B1D232AC75FC979304FDFDF9E0" box="[426,537,1550,1576]" captionStart="FIGURE 18" captionStartId="24.[151,250,1995,2020]" captionTargetBox="[261,1325,294,1975]" captionTargetId="figure@24.[261,1325,294,1975]" captionTargetPageId="24" captionText="FIGURE 18. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, external shape (scale 10 mm)." httpUri="https://zenodo.org/record/3383532/files/figure.png" pageId="23" pageNumber="70">Figure 18</figureCitation>
. The specimen is ovoid about
<quantity id="372CE8D1D232AC75FE519304FC5FF9E1" box="[876,955,1550,1577]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="23" pageNumber="70" unit="mm" value="20.0">20 mm</quantity>
long and
<quantity id="372CE8D1D232AC75F9179304FB9DF9E1" box="[1066,1145,1550,1577]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" pageId="23" pageNumber="70" unit="mm" value="13.0">13 mm</quantity>
in diameter with osculum
<quantity id="372CE8D1D232AC75FDAA9338FF3CF985" box="[151,216,1586,1613]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="23" pageNumber="70" unit="mm" value="8.0">8 mm</quantity>
in diameter. The specimen is attached to a solitary coral. Prostalia lateralia are diactins which protrude up to about
<quantity id="372CE8D1D232AC75FDE1935CFECFF9B9" box="[220,299,1622,1649]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="23" pageNumber="70" unit="mm" value="10.0">10 mm</quantity>
from the body and hypodermal pentactins with tangential rays situated close to the dermal surface.
</paragraph>
<paragraph id="F06B4534D232AC7AFDFA9373FF7AFED7" blockId="23.[151,1437,1441,2045]" lastBlockId="24.[151,1436,153,287]" lastPageId="24" lastPageNumber="71" pageId="23" pageNumber="70">
<emphasis id="C2A09926D232AC75FDFA9373FE2BF95C" bold="true" box="[199,463,1657,1684]" pageId="23" pageNumber="70">Spicules. Megascleres,</emphasis>
<figureCitation id="68EF59B1D232AC75FCEB9370FDA0F95C" box="[470,580,1658,1684]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="23" pageNumber="70">Figure 19</figureCitation>
. Prostalia lateralia are diactins and hypodermal pentactins. The diactins have conically pointed outer ends, and rough or smooth stout shafts 710/
<quantity id="372CE8D1D232AC75FEB49394FC09F971" box="[905,1005,1694,1721]" metricMagnitude="-5" metricUnit="m" metricValue="3.0" pageId="23" pageNumber="70" unit="mm" value="0.03">0.03 mm</quantity>
(
<figureCitation id="68EF59B1D232AC75FEC49394FB82F970" box="[1017,1126,1694,1720]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="23" pageNumber="70">Figure 19</figureCitation>
GH). Hypodermal pentactins have paratropal tangential rays usually with spines (rarely smooth) and conically pointed outer ends (
<figureCitation id="68EF59B1D232AC75F81293C8FA78F914" box="[1327,1436,1730,1756]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="23" pageNumber="70">Figure 19</figureCitation>
AC). The tangential rays of the hypodermal pentactins are
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long, the proximal ray is about
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long, the diameterof these rays is
<quantity id="372CE8D1D232AC75FCF19200FD95F8ED" box="[460,625,1802,1829]" metricMagnitude="-5" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="23" pageNumber="70" unit="mm" value="0.035" valueMax="0.04" valueMin="0.03">0.030.04 mm</quantity>
. Choanosomal diactins 0.95/
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<geoCoordinate id="95E023F3D232AC75FE839203FC1AF8EC" box="[958,1022,1801,1828]" degrees="0.004" direction="north" orientation="latitude" pageId="23" pageNumber="70" precision="55" value="0.004">0.004</geoCoordinate>
<geoCoordinate id="95E023F3D232AC75FEC39203FBAFF8EC" box="[1022,1099,1801,1828]" degrees="0.015" direction="west" orientation="longitude" pageId="23" pageNumber="70" precision="55" value="-0.015">0.015</geoCoordinate>
mm
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have conically pointed or rounded, roughened outer ends, the shafts are stout or with a central widening (
<figureCitation id="68EF59B1D232AC75FEC29224FB88F880" box="[1023,1132,1838,1864]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="23" pageNumber="70">Figure 19</figureCitation>
DF). Dermalia are stauractins and some diactins, sometimes tauactins and stauractins with a rudimentary fifth ray. These spicules have rough rays with conically pointed or rounded outer ends (
<figureCitation id="68EF59B1D232AC75FFE5927CFCA3F858" box="[728,839,1910,1936]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="23" pageNumber="70">Figure 19</figureCitation>
IJ). The rays of dermal stauractins are
<quantity id="372CE8D1D232AC75F82D927CFF27F87D" metricMagnitude="-4" metricUnit="m" metricValue="1.5" metricValueMax="1.96" metricValueMin="1.04" pageId="23" pageNumber="70" unit="mm" value="0.15" valueMax="0.196" valueMin="0.104">
<geoCoordinate id="95E023F3D232AC75F82D927CFAABF858" box="[1296,1359,1910,1936]" degrees="0.104" direction="north" orientation="latitude" pageId="23" pageNumber="70" precision="55" value="0.104">0.104</geoCoordinate>
<geoCoordinate id="95E023F3D232AC75F872927CFA78F858" box="[1359,1436,1910,1936]" degrees="0.196" direction="west" orientation="longitude" pageId="23" pageNumber="70" precision="55" value="-0.196">0.196</geoCoordinate>
mm
</quantity>
long (n=25, avg:
<quantity id="372CE8D1D232AC75FCAA9290FDEAF87D" box="[407,526,1946,1973]" metricMagnitude="-4" metricUnit="m" metricValue="1.46" pageId="23" pageNumber="70" unit="mm" value="0.146">0.146 mm</quantity>
, std:
<quantity id="372CE8D1D232AC75FF729290FD2CF87D" box="[591,712,1946,1973]" metricMagnitude="-5" metricUnit="m" metricValue="2.1" pageId="23" pageNumber="70" unit="mm" value="0.021">0.021 mm</quantity>
), the diameter is
<quantity id="372CE8D1D232AC75FEAF9290FBB3F87D" box="[914,1111,1946,1973]" metricMagnitude="-6" metricUnit="m" metricValue="5.499999999999999" metricValueMax="7" metricValueMin="4.0" pageId="23" pageNumber="70" unit="mm" value="0.0055" valueMax="0.007" valueMin="0.004">
<geoCoordinate id="95E023F3D232AC75FEAF9290FC35F87C" box="[914,977,1946,1972]" degrees="0.004" direction="north" orientation="latitude" pageId="23" pageNumber="70" precision="55" value="0.004">0.004</geoCoordinate>
<geoCoordinate id="95E023F3D232AC75FEEC9290FBFAF87C" box="[977,1054,1946,1972]" degrees="0.007" direction="west" orientation="longitude" pageId="23" pageNumber="70" precision="55" value="-0.007">0.007</geoCoordinate>
mm
</quantity>
. The diactins have a central widening, or two rudimentary tubercles, the rays are
<quantity id="372CE8D1D232AC75FFDB92B7FC41F811" box="[742,933,1981,2009]" metricMagnitude="-4" metricUnit="m" metricValue="1.945" metricValueMax="2.37" metricValueMin="1.52" pageId="23" pageNumber="70" unit="mm" value="0.1945" valueMax="0.237" valueMin="0.152">
<geoCoordinate id="95E023F3D232AC75FFDB92B7FCC1F810" box="[742,805,1981,2008]" degrees="0.152" direction="north" orientation="latitude" pageId="23" pageNumber="70" precision="55" value="0.152">0.152</geoCoordinate>
<geoCoordinate id="95E023F3D232AC75FE1892B7FC96F810" box="[805,882,1981,2008]" degrees="0.237" direction="west" orientation="longitude" pageId="23" pageNumber="70" precision="55" value="-0.237">0.237</geoCoordinate>
mm
</quantity>
long (n=23, avg:
<quantity id="372CE8D1D232AC75F95192B4FB04F811" box="[1132,1248,1982,2009]" metricMagnitude="-4" metricUnit="m" metricValue="1.7999999999999998" pageId="23" pageNumber="70" unit="mm" value="0.18">0.180 mm</quantity>
, std:
<quantity id="372CE8D1D232AC75F82792B4FA74F811" box="[1306,1424,1982,2009]" metricMagnitude="-5" metricUnit="m" metricValue="2.4" pageId="23" pageNumber="70" unit="mm" value="0.024">0.024 mm</quantity>
), diameter of the rays is
<geoCoordinate id="95E023F3D232AC75FCA792E8FE3DF834" box="[410,473,2018,2044]" degrees="0.007" direction="north" orientation="latitude" pageId="23" pageNumber="70" precision="55" value="0.007">0.007</geoCoordinate>
<geoCoordinate id="95E023F3D232AC75FCE492E8FDC3F834" box="[473,551,2018,2044]" degrees="0.008" direction="west" orientation="longitude" pageId="23" pageNumber="70" precision="55" value="-0.008">0.008</geoCoordinate>
(
<figureCitation id="68EF59B1D232AC75FF0B92E8FD40F834" box="[566,676,2018,2044]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="23" pageNumber="70">Figure 19</figureCitation>
GH). Atrialia are hexactins with rough rays and conically pointed outer ends (
<figureCitation id="68EF59B1D23DAC7AFC279593FE4CFF7B" box="[282,424,153,179]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="24" pageNumber="71">Figure 19 K</figureCitation>
). The proximal ray of the atrial hexactins is
<quantity id="372CE8D1D23DAC7AFEA69593FBBEFF7B" box="[923,1114,153,179]" metricMagnitude="-4" metricUnit="m" metricValue="1.44" metricValueMax="1.7" metricValueMin="1.18" pageId="24" pageNumber="71" unit="mm" value="0.144" valueMax="0.17" valueMin="0.118">
<geoCoordinate id="95E023F3D23DAC7AFEA69593FC3DFF7B" box="[923,985,153,179]" degrees="0.118" direction="north" orientation="latitude" pageId="24" pageNumber="71" precision="55" value="0.118">0.118</geoCoordinate>
<geoCoordinate id="95E023F3D23DAC7AFEE49593FBC2FF7B" box="[985,1062,153,179]" degrees="0.170" direction="west" orientation="longitude" pageId="24" pageNumber="71" precision="55" value="-0.17">0.170</geoCoordinate>
mm
</quantity>
long (n=16, avg:
<quantity id="372CE8D1D23DAC7AF81E9593FA7CFF7B" box="[1315,1432,153,179]" metricMagnitude="-4" metricUnit="m" metricValue="1.48" pageId="24" pageNumber="71" unit="mm" value="0.148">0.148 mm</quantity>
, std:
<quantity id="372CE8D1D23DAC7AFDFA95B6FEDAFF1F" box="[199,318,188,215]" metricMagnitude="-5" metricUnit="m" metricValue="1.5" pageId="24" pageNumber="71" unit="mm" value="0.015">0.015 mm</quantity>
), tangential rays are
<quantity id="372CE8D1D23DAC7AFF1495B7FD0CFF1F" box="[553,744,189,215]" metricMagnitude="-4" metricUnit="m" metricValue="1.595" metricValueMax="1.89" metricValueMin="1.3" pageId="24" pageNumber="71" unit="mm" value="0.1595" valueMax="0.189" valueMin="0.13">
<geoCoordinate id="95E023F3D23DAC7AFF1495B7FD8CFF1F" box="[553,616,189,215]" degrees="0.130" direction="north" orientation="latitude" pageId="24" pageNumber="71" precision="55" value="0.13">0.130</geoCoordinate>
<geoCoordinate id="95E023F3D23DAC7AFF5595B7FD51FF1F" box="[616,693,189,215]" degrees="0.189" direction="west" orientation="longitude" pageId="24" pageNumber="71" precision="55" value="-0.189">0.189</geoCoordinate>
mm
</quantity>
long (n=23, avg:
<quantity id="372CE8D1D23DAC7AFE8E95B7FBCCFF1F" box="[947,1064,189,215]" metricMagnitude="-4" metricUnit="m" metricValue="1.61" pageId="24" pageNumber="71" unit="mm" value="0.161">0.161 mm</quantity>
, std:
<quantity id="372CE8D1D23DAC7AF95895B6FB38FF1F" box="[1125,1244,188,215]" metricMagnitude="-5" metricUnit="m" metricValue="1.5" pageId="24" pageNumber="71" unit="mm" value="0.015">0.015 mm</quantity>
), the distal ray is
<quantity id="372CE8D1D23DAC7AFDAA95EBFEB2FF33" box="[151,342,225,251]" metricMagnitude="-4" metricUnit="m" metricValue="3.3899999999999997" metricValueMax="4.37" metricValueMin="2.41" pageId="24" pageNumber="71" unit="mm" value="0.33899999999999997" valueMax="0.437" valueMin="0.241">
<geoCoordinate id="95E023F3D23DAC7AFDAA95EBFF31FF33" box="[151,213,225,251]" degrees="0.241" direction="north" orientation="latitude" pageId="24" pageNumber="71" precision="55" value="0.241">0.241</geoCoordinate>
<geoCoordinate id="95E023F3D23DAC7AFDE895EBFEC0FF33" box="[213,292,225,251]" degrees="0.437" direction="west" orientation="longitude" pageId="24" pageNumber="71" precision="55" value="-0.437">0.437</geoCoordinate>
mm
</quantity>
long (n=23, avg:
<quantity id="372CE8D1D23DAC7AFF2395EBFD76FF33" box="[542,658,225,251]" metricMagnitude="-4" metricUnit="m" metricValue="3.03" pageId="24" pageNumber="71" unit="mm" value="0.303">0.303 mm</quantity>
, std:
<quantity id="372CE8D1D23DAC7AFFF095EBFCA7FF33" box="[717,835,225,251]" metricMagnitude="-5" metricUnit="m" metricValue="4.699999999999999" pageId="24" pageNumber="71" unit="mm" value="0.047">0.047 mm</quantity>
), the diameter of these rays is
<quantity id="372CE8D1D23DAC7AF9AB95EBFAB1FF33" box="[1174,1365,225,251]" metricMagnitude="-6" metricUnit="m" metricValue="6.5" metricValueMax="7" metricValueMin="6.0" pageId="24" pageNumber="71" unit="mm" value="0.0065" valueMax="0.007" valueMin="0.006">
<geoCoordinate id="95E023F3D23DAC7AF9AB95EBFB31FF33" box="[1174,1237,225,251]" degrees="0.006" direction="north" orientation="latitude" pageId="24" pageNumber="71" precision="55" value="0.006">0.006</geoCoordinate>
<geoCoordinate id="95E023F3D23DAC7AF9E895EBFAC7FF33" box="[1237,1315,225,251]" degrees="0.007" direction="west" orientation="longitude" pageId="24" pageNumber="71" precision="55" value="-0.007">0.007</geoCoordinate>
mm
</quantity>
.
</paragraph>
<caption id="A4AB15BCD23DAC7AFDAA92C1FB54F82C" box="[151,1200,1995,2020]" httpUri="https://zenodo.org/record/3383532/files/figure.png" pageId="24" pageNumber="71" startId="24.[151,250,1995,2020]" targetBox="[261,1325,294,1975]" targetPageId="24">
<paragraph id="F06B4534D23DAC7AFDAA92C1FB54F82C" blockId="24.[151,1200,1995,2020]" box="[151,1200,1995,2020]" pageId="24" pageNumber="71">
<emphasis id="C2A09926D23DAC7AFDAA92C1FEC4F82C" bold="true" box="[151,288,1995,2020]" pageId="24" pageNumber="71">FIGURE 18.</emphasis>
<taxonomicName id="37D43EB7D23DAC7AFC1B92C6FDFCF82B" authority="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina, 2019" authorityName="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina" authorityYear="2019" box="[294,536,1996,2020]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="24" pageNumber="71" phylum="Porifera" rank="species" species="gomezi" status="sp. nov.">
<emphasis id="C2A09926D23DAC7AFC1B92C6FDFCF82B" box="[294,536,1996,2020]" italics="true" pageId="24" pageNumber="71">Rhabdocalyptus gomezi</emphasis>
</taxonomicName>
<emphasis id="C2A09926D23DAC7AFF2392C6FD91F82C" bold="true" box="[542,629,1996,2020]" pageId="24" pageNumber="71">
<taxonomicNameLabel id="D993245DD23DAC7AFF2392C6FD94F82C" box="[542,624,1996,2020]" pageId="24" pageNumber="71" rank="species">sp. nov.</taxonomicNameLabel>
,
</emphasis>
holotype, WAM Z92506, external shape (scale 10 mm).
</paragraph>
</caption>
<paragraph id="F06B4534D23CAC7BFDFA9592FF30FE67" blockId="25.[151,1437,152,431]" pageId="25" pageNumber="72">
<emphasis id="C2A09926D23CAC7BFDFA9592FE81FF7B" bold="true" box="[199,357,152,179]" pageId="25" pageNumber="72">Microscleres,</emphasis>
<figureCitation id="68EF59B1D23CAC7BFC529593FE04FF7B" box="[367,480,153,179]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="25" pageNumber="72">Figure 19</figureCitation>
. Microscleres are represented by discoctasters, oxyoctasters, oxyhexasters and oxyhemihexasters (
<figureCitation id="68EF59B1D23CAC7BFC7895B7FE56FF1F" box="[325,434,189,215]" captionStart="FIGURE 19" captionStartId="25.[151,250,1650,1675]" captionTargetBox="[163,1400,431,1607]" captionTargetId="figure@25.[151,1436,438,1631]" captionTargetPageId="25" captionText="FIGURE 19. Rhabdocalyptus gomezi sp. nov., holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster." httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="25" pageNumber="72">Figure 19</figureCitation>
LQ). The discoctasters usually have asymmetrical discs at the ends of the secondary rays making these rays of floricoidal shape. The discoctasters are
<quantity id="372CE8D1D23CAC7BFE7795EAFBEDFF33" box="[842,1033,224,251]" metricMagnitude="-4" metricUnit="m" metricValue="1.35" metricValueMax="1.55" metricValueMin="1.15" pageId="25" pageNumber="72" unit="mm" value="0.135" valueMax="0.155" valueMin="0.115">
<geoCoordinate id="95E023F3D23CAC7BFE7795EAFC6CFF33" box="[842,904,224,251]" degrees="0.115" direction="north" orientation="latitude" pageId="25" pageNumber="72" precision="55" value="0.115">0.115</geoCoordinate>
<geoCoordinate id="95E023F3D23CAC7BFEB595EAFC31FF33" box="[904,981,224,251]" degrees="0.155" direction="west" orientation="longitude" pageId="25" pageNumber="72" precision="55" value="-0.155">0.155</geoCoordinate>
mm
</quantity>
in diameter (n=19, avg:
<quantity id="372CE8D1D23CAC7BF81E95EBFA7CFF33" box="[1315,1432,225,251]" metricMagnitude="-4" metricUnit="m" metricValue="1.41" pageId="25" pageNumber="72" unit="mm" value="0.141">0.141 mm</quantity>
, std:
<quantity id="372CE8D1D23CAC7BFDF5940FFEDBFED7" box="[200,319,261,287]" metricMagnitude="-5" metricUnit="m" metricValue="1.0" pageId="25" pageNumber="72" unit="mm" value="0.01">0.010 mm</quantity>
), diameter of the primary rosette is
<quantity id="372CE8D1D23CAC7BFFE5940FFC7CFED7" box="[728,920,261,287]" metricMagnitude="-5" metricUnit="m" metricValue="3.1" metricValueMax="4.0" metricValueMin="2.1999999999999997" pageId="25" pageNumber="72" unit="mm" value="0.031" valueMax="0.04" valueMin="0.022">
<geoCoordinate id="95E023F3D23CAC7BFFE5940FFCF3FED7" box="[728,791,261,287]" degrees="0.022" direction="north" orientation="latitude" pageId="25" pageNumber="72" precision="55" value="0.022">0.022</geoCoordinate>
<geoCoordinate id="95E023F3D23CAC7BFE2A940FFC80FED7" box="[791,868,261,287]" degrees="0.040" direction="west" orientation="longitude" pageId="25" pageNumber="72" precision="55" value="-0.04">0.040</geoCoordinate>
mm
</quantity>
long (n=19, avg:
<quantity id="372CE8D1D23CAC7BF95B940FFB3FFED7" box="[1126,1243,261,287]" metricMagnitude="-5" metricUnit="m" metricValue="3.0" pageId="25" pageNumber="72" unit="mm" value="0.03">0.030 mm</quantity>
, std:
<quantity id="372CE8D1D23CAC7BF824940EFA74FED7" box="[1305,1424,260,287]" metricMagnitude="-6" metricUnit="m" metricValue="5.0" pageId="25" pageNumber="72" unit="mm" value="0.005">0.005 mm</quantity>
). Oxyoctaster is
<quantity id="372CE8D1D23CAC7BFC039423FE4BFE8B" box="[318,431,297,323]" metricMagnitude="-4" metricUnit="m" metricValue="1.4" pageId="25" pageNumber="72" unit="mm" value="0.14">0.140 mm</quantity>
in diameter with primary rosette
<quantity id="372CE8D1D23CAC7BFE1F9423FC70FE8B" box="[802,916,297,323]" metricMagnitude="-5" metricUnit="m" metricValue="3.5999999999999996" pageId="25" pageNumber="72" unit="mm" value="0.036">0.036 mm</quantity>
in diameter. Oxyhexasters and oxyhemihexasters have 13 secondary rays, usually slightly curved and rough. They are
<quantity id="372CE8D1D23CAC7BFEEF9446FB74FEAF" box="[978,1168,332,359]" metricMagnitude="-5" metricUnit="m" metricValue="9.7" metricValueMax="11.5" metricValueMin="7.9" pageId="25" pageNumber="72" unit="mm" value="0.097" valueMax="0.115" valueMin="0.079">
<geoCoordinate id="95E023F3D23CAC7BFEEF9446FBF5FEAF" box="[978,1041,332,359]" degrees="0.079" direction="north" orientation="latitude" pageId="25" pageNumber="72" precision="55" value="0.079">0.079</geoCoordinate>
<geoCoordinate id="95E023F3D23CAC7BF92C9446FBB9FEAF" box="[1041,1117,332,359]" degrees="0.115" direction="west" orientation="longitude" pageId="25" pageNumber="72" precision="55" value="-0.115">0.115</geoCoordinate>
mm
</quantity>
in diameter (n=25, avg:
<quantity id="372CE8D1D23CAC7BFDAA947BFEE8FE43" box="[151,268,369,395]" metricMagnitude="-4" metricUnit="m" metricValue="1.01" pageId="25" pageNumber="72" unit="mm" value="0.101">0.101 mm</quantity>
, std:
<quantity id="372CE8D1D23CAC7BFC77947BFE24FE43" box="[330,448,369,395]" metricMagnitude="-5" metricUnit="m" metricValue="1.0999999999999999" pageId="25" pageNumber="72" unit="mm" value="0.011">0.011 mm</quantity>
), diameter of the primary rosette is
<quantity id="372CE8D1D23CAC7BFE65947AFBF3FE43" box="[856,1047,368,395]" metricMagnitude="-6" metricUnit="m" metricValue="8.0" metricValueMax="10.999999999999998" metricValueMin="5.0" pageId="25" pageNumber="72" unit="mm" value="0.008" valueMax="0.011" valueMin="0.005">
<geoCoordinate id="95E023F3D23CAC7BFE65947AFC73FE43" box="[856,919,368,395]" degrees="0.005" direction="north" orientation="latitude" pageId="25" pageNumber="72" precision="55" value="0.005">0.005</geoCoordinate>
<geoCoordinate id="95E023F3D23CAC7BFEAA947AFC07FE43" box="[919,995,368,395]" degrees="0.011" direction="west" orientation="longitude" pageId="25" pageNumber="72" precision="55" value="-0.011">0.011</geoCoordinate>
mm
</quantity>
(n=25, avg:
<quantity id="372CE8D1D23CAC7BF997947BFAFBFE43" box="[1194,1311,369,395]" metricMagnitude="-6" metricUnit="m" metricValue="8.0" pageId="25" pageNumber="72" unit="mm" value="0.008">0.008 mm</quantity>
, std:
<quantity id="372CE8D1D23CAC7BF860947BFF23FE67" metricMagnitude="-6" metricUnit="m" metricValue="1.0" pageId="25" pageNumber="72" unit="mm" value="0.001">0.001 mm</quantity>
).
</paragraph>
<caption id="A4AB15BCD23CAC7BFDAA9378FB11F91B" httpUri="https://zenodo.org/record/3383534/files/figure.png" pageId="25" pageNumber="72" startId="25.[151,250,1650,1675]" targetBox="[163,1400,431,1607]" targetPageId="25">
<paragraph id="F06B4534D23CAC7BFDAA9378FB11F91B" blockId="25.[151,1436,1650,1747]" pageId="25" pageNumber="72">
<emphasis id="C2A09926D23CAC7BFDAA9378FEC5F943" bold="true" box="[151,289,1650,1675]" pageId="25" pageNumber="72">FIGURE 19.</emphasis>
<taxonomicName id="37D43EB7D23CAC7BFC159379FDFFF942" authority="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina, 2019" authorityName="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina" authorityYear="2019" box="[296,539,1651,1675]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="species" species="gomezi" status="sp. nov.">
<emphasis id="C2A09926D23CAC7BFC159379FDFFF942" box="[296,539,1651,1675]" italics="true" pageId="25" pageNumber="72">Rhabdocalyptus gomezi</emphasis>
</taxonomicName>
<emphasis id="C2A09926D23CAC7BFF1F9379FD9EF943" bold="true" box="[546,634,1651,1675]" pageId="25" pageNumber="72">
<taxonomicNameLabel id="D993245DD23CAC7BFF1F9379FD91F943" box="[546,629,1651,1675]" pageId="25" pageNumber="72" rank="species">sp. nov.</taxonomicNameLabel>
,
</emphasis>
holotype, WAM Z92506, spicules. AB, hypodermal pentactins. C, tangential ray of hypodermal pentactin. DF, choanosomal diactins. GH, dermal diactins. I, dermal tauactin. J, dermal stauractin. K, atrial hexactin. L, oxyoctaster. M, discoctaster. NO, secondary rays of discoctaster. P. oxyhexactin. Q, oxyhexaster.
</paragraph>
</caption>
<paragraph id="F06B4534D23CAC7BFDFA920BFB2EF8AB" blockId="25.[151,1437,1793,2036]" pageId="25" pageNumber="72">
<emphasis id="C2A09926D23CAC7BFDFA920BFEDFF8D3" bold="true" box="[199,315,1793,1819]" pageId="25" pageNumber="72">Remarks.</emphasis>
The genus
<taxonomicName id="37D43EB7D23CAC7BFC80920BFD95F8D3" authorityName="Schulze" authorityYear="1886" box="[445,625,1793,1819]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="genus">
<emphasis id="C2A09926D23CAC7BFC80920BFD95F8D3" box="[445,625,1793,1819]" italics="true" pageId="25" pageNumber="72">Rhabdocalyptus</emphasis>
</taxonomicName>
(equivalent to the subgenus
<taxonomicName id="37D43EB7D23CAC7BFE8F920BFF3AF8F7" authority="Tabachnick, 2002 c" authorityName="Tabachnick" authorityYear="2002" class="Hexactinellida" family="Rossellidae" genus="Acanthascus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="subGenus" subGenus="Rhabdocalyptus">
<emphasis id="C2A09926D23CAC7BFE8F920BFAEAF8D3" box="[946,1294,1793,1819]" italics="true" pageId="25" pageNumber="72">Acanthascus (Rhabdocalyptus)</emphasis>
<bibRefCitation id="944538C5D23CAC7BF828920BFF3AF8F7" author="Tabachnick, K. R." pageId="25" pageNumber="72" pagination="1441 - 1505" refId="ref15395" refString="Tabachnick, K. R. (2002 c) Family Rossellidae Schulze, 1885. In: Hooper, J. N. A. &amp; van Soest, R. W. M. (Eds.), Systema Porifera: A Guide to the Classification of Sponges. Vol. 2. Kluwer Academic / Plenum Publishers, New York, pp. 1441 - 1505. https: // doi. org / 10.1007 / 978 - 1 - 4615 - 0747 - 5 _ 148" type="book chapter" year="2002">Tabachnick, 2002c</bibRefCitation>
</taxonomicName>
) has 19 species distributed mostly in the North Pacific, off
<collectingCountry id="88C305A4D23CAC7BFE4F922FFBE5F8F7" box="[882,1025,1829,1855]" name="South Africa" pageId="25" pageNumber="72">South Africa</collectingCountry>
and
<collectingCountry id="88C305A4D23CAC7BF908922FFB4EF8F7" box="[1077,1194,1829,1855]" name="Antarctica" pageId="25" pageNumber="72">Antarctica</collectingCountry>
(
<bibRefCitation id="944538C5D23CAC7BF98A922FFA75F8F7" author="Tabachnick, K. R." box="[1207,1425,1829,1855]" pageId="25" pageNumber="72" pagination="1441 - 1505" refId="ref15395" refString="Tabachnick, K. R. (2002 c) Family Rossellidae Schulze, 1885. In: Hooper, J. N. A. &amp; van Soest, R. W. M. (Eds.), Systema Porifera: A Guide to the Classification of Sponges. Vol. 2. Kluwer Academic / Plenum Publishers, New York, pp. 1441 - 1505. https: // doi. org / 10.1007 / 978 - 1 - 4615 - 0747 - 5 _ 148" type="book chapter" year="2002">Tabachnick, 2002c</bibRefCitation>
). An additional species,
<taxonomicName id="37D43EB7D23CAC7BFCAB9240FDF6F8AB" authorityName="Reiswig" authorityYear="2018" box="[406,530,1865,1891]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="species" species="trichotis">
<emphasis id="C2A09926D23CAC7BFCAB9240FDF6F8AB" box="[406,530,1865,1891]" italics="true" pageId="25" pageNumber="72">R. trichotis</emphasis>
</taxonomicName>
, was recently described from the NE Pacific (Reiswig, 2018).
</paragraph>
<paragraph id="F06B4534D23CAC78FDFA9267FBC0FE1B" blockId="25.[151,1437,1793,2036]" lastBlockId="26.[151,1437,153,611]" lastPageId="26" lastPageNumber="73" pageId="25" pageNumber="72">
The new species is the second representative of the genus in the Indian Ocean with the other species,
<taxonomicName id="37D43EB7D23CAC7BF8659267FD95F863" authority="Tabachnick, 1994" authorityName="Tabachnick" authorityYear="1994" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="species" species="monstraster">
<emphasis id="C2A09926D23CAC7BF8659267FE7BF863" italics="true" pageId="25" pageNumber="72">Rhabdocalyptus monstraster</emphasis>
<bibRefCitation id="944538C5D23CAC7BFC9B929BFD95F863" author="Tabachnick, K. R." box="[422,625,1937,1963]" pageId="25" pageNumber="72" pagination="153 - 155" refId="ref15178" refString="Tabachnick, K. R. (1994) New species of Rhabdocalyptus from the West part of the Indian Ocean. Trudy Instituta Okeanologii Akademiya Nauk SSS, 129, 153 - 155." type="journal article" year="1994">Tabachnick, 1994</bibRefCitation>
</taxonomicName>
, in the western Indian Ocean off
<collectingCountry id="88C305A4D23CAC7BFED6929BFB96F863" box="[1003,1138,1937,1963]" name="Madagascar" pageId="25" pageNumber="72">Madagascar</collectingCountry>
and
<collectingCountry id="88C305A4D23CAC7BF996929BFADAF863" box="[1195,1342,1937,1963]" name="South Africa" pageId="25" pageNumber="72">South Africa</collectingCountry>
. Among numerous species only three representatives of this genus have stauractins as the dominant dermal spicule:
<taxonomicName id="37D43EB7D23CAC7BF86F92BCFEA1F83B" authority="Ijima, 1897" authorityName="Ijima" authorityYear="1897" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="species" species="victor">
<emphasis id="C2A09926D23CAC7BF86F92BCFF5CF83B" italics="true" pageId="25" pageNumber="72">R. victor</emphasis>
Ijima, 1897
</taxonomicName>
;
<taxonomicName id="37D43EB7D23CAC7BFC6C92D0FD99F83B" authority="Okada, 1932" authorityName="Okada" authorityYear="1932" box="[337,637,2009,2035]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="species" species="bidentatus">
<emphasis id="C2A09926D23CAC7BFC6C92D0FE02F83B" box="[337,486,2009,2035]" italics="true" pageId="25" pageNumber="72">R. bidentatus</emphasis>
Okada, 1932
</taxonomicName>
and
<taxonomicName id="37D43EB7D23CAC7BFF8892D0FBCEF83B" authority="Tabachnick, 1994" authorityName="Tabachnick" authorityYear="1994" box="[693,1066,2009,2035]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="25" pageNumber="72" phylum="Porifera" rank="species" species="monstraster">
<emphasis id="C2A09926D23CAC7BFF8892D0FCBFF83B" box="[693,859,2010,2035]" italics="true" pageId="25" pageNumber="72">R. monstraster</emphasis>
<bibRefCitation id="944538C5D23CAC7BFE5F92D3FBCEF83B" author="Tabachnick, K. R." box="[866,1066,2009,2035]" pageId="25" pageNumber="72" pagination="153 - 155" refId="ref15178" refString="Tabachnick, K. R. (1994) New species of Rhabdocalyptus from the West part of the Indian Ocean. Trudy Instituta Okeanologii Akademiya Nauk SSS, 129, 153 - 155." type="journal article" year="1994">Tabachnick, 1994</bibRefCitation>
</taxonomicName>
(the first two species inhabit the North Pacific and the latter is from the south west Indian Ocean). Unlike these described species
<taxonomicName id="37D43EB7D23FAC78F83F9590FA96FF7B" authority="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina, 2019" authorityName="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina" authorityYear="2019" box="[1282,1394,154,179]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="species" species="gomezi" status="sp. nov.">
<emphasis id="C2A09926D23FAC78F83F9590FA96FF7B" box="[1282,1394,154,179]" italics="true" pageId="26" pageNumber="73">R. gomezi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="D993245DD23FAC78F8419593FF23FF1F" pageId="26" pageNumber="73" rank="species">sp. nov.</taxonomicNameLabel>
has smaller microscleres, specifically the discoctasters, oxyhexactins and oxyhemihexasters, which are from
<quantity id="372CE8D1D23FAC78FDAA95EAFEBFFF33" box="[151,347,224,251]" metricMagnitude="-4" metricUnit="m" metricValue="1.17" metricValueMax="1.55" metricValueMin="0.79" pageId="26" pageNumber="73" unit="mm" value="0.11699999999999999" valueMax="0.155" valueMin="0.079">
<geoCoordinate id="95E023F3D23FAC78FDAA95EAFF32FF33" box="[151,214,224,251]" degrees="0.079" direction="north" orientation="latitude" pageId="26" pageNumber="73" precision="55" value="0.079">0.079</geoCoordinate>
<geoCoordinate id="95E023F3D23FAC78FDEB95EAFEC7FF33" box="[214,291,224,251]" degrees="0.155" direction="west" orientation="longitude" pageId="26" pageNumber="73" precision="55" value="-0.155">0.155</geoCoordinate>
mm
</quantity>
. In known species they are:
<quantity id="372CE8D1D23FAC78FFA295EBFCBBFF33" box="[671,863,225,251]" metricMagnitude="-4" metricUnit="m" metricValue="1.35" metricValueMax="1.4" metricValueMin="1.3" pageId="26" pageNumber="73" unit="mm" value="0.135" valueMax="0.14" valueMin="0.13">
<geoCoordinate id="95E023F3D23FAC78FFA295EBFD3AFF33" box="[671,734,225,251]" degrees="0.130" direction="north" orientation="latitude" pageId="26" pageNumber="73" precision="55" value="0.13">0.130</geoCoordinate>
<geoCoordinate id="95E023F3D23FAC78FFE395EBFCCFFF33" box="[734,811,225,251]" degrees="0.140" direction="west" orientation="longitude" pageId="26" pageNumber="73" precision="55" value="-0.14">0.140</geoCoordinate>
mm
</quantity>
in diameter in
<taxonomicName id="37D43EB7D23FAC78F93395E8FB47FF33" authorityName="Okada" authorityYear="1932" box="[1038,1187,225,251]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="species" species="bidentatus">
<emphasis id="C2A09926D23FAC78F93395E8FB47FF33" box="[1038,1187,225,251]" italics="true" pageId="26" pageNumber="73">R. bidentatus</emphasis>
</taxonomicName>
and
<quantity id="372CE8D1D23FAC78F9E195EBFA79FF33" box="[1244,1437,225,251]" metricMagnitude="-5" metricUnit="m" metricValue="9.0" metricValueMax="12.0" metricValueMin="6.0" pageId="26" pageNumber="73" unit="mm" value="0.09" valueMax="0.12" valueMin="0.06">
<geoCoordinate id="95E023F3D23FAC78F9E195EBFAFFFF33" box="[1244,1307,225,251]" degrees="0.060" direction="north" orientation="latitude" pageId="26" pageNumber="73" precision="55" value="0.06">0.060</geoCoordinate>
<geoCoordinate id="95E023F3D23FAC78F82695EBFA8CFF33" box="[1307,1384,225,251]" degrees="0.120" direction="west" orientation="longitude" pageId="26" pageNumber="73" precision="55" value="-0.12">0.120</geoCoordinate>
mm
</quantity>
in
<taxonomicName id="37D43EB7D23FAC78FD88940CFEBFFED7" authorityName="Tabachnick" authorityYear="1994" box="[181,347,262,287]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="species" species="monstraster">
<emphasis id="C2A09926D23FAC78FD88940CFEBFFED7" box="[181,347,262,287]" italics="true" pageId="26" pageNumber="73">R. monstraster</emphasis>
</taxonomicName>
. The oxyoidal microscleres are similar in size for
<taxonomicName id="37D43EB7D23FAC78FEA5940CFBDAFED7" authorityName="Tabachnick" authorityYear="1994" box="[920,1086,262,287]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="species" species="monstraster">
<emphasis id="C2A09926D23FAC78FEA5940CFBDAFED7" box="[920,1086,262,287]" italics="true" pageId="26" pageNumber="73">R. monstraster</emphasis>
</taxonomicName>
and
<taxonomicName id="37D43EB7D23FAC78F94A940CFB02FED7" authority="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina, 2019" authorityName="Tabachnick &amp; Fromont &amp; Ehrlich &amp; Menshenina" authorityYear="2019" box="[1143,1254,262,287]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="species" species="gomezi" status="sp. nov.">
<emphasis id="C2A09926D23FAC78F94A940CFB02FED7" box="[1143,1254,262,287]" italics="true" pageId="26" pageNumber="73">R. gomezi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="D993245DD23FAC78F9D2940FFAA3FED7" box="[1263,1351,261,287]" pageId="26" pageNumber="73" rank="species">sp. nov.</taxonomicNameLabel>
but the former species has notable spines on these spicules which are lacking in the new species. The discoctasters of the new species are similar in shape to those of
<taxonomicName id="37D43EB7D23FAC78FFBF9444FCF2FEAF" authorityName="Okada" authorityYear="1932" box="[642,790,333,359]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="species" species="bidentatus">
<emphasis id="C2A09926D23FAC78FFBF9444FCF2FEAF" box="[642,790,333,359]" italics="true" pageId="26" pageNumber="73">R. bidentatus</emphasis>
</taxonomicName>
but they are completely floricoidal (floricoidal secondary rays) in the latter species. Microdiscohexasters are not found in the new species but this is not considered important. Finding these spicules in some representatives of the genus
<taxonomicName id="37D43EB7D23FAC78FE57949FFBFAFE67" authorityName="Schulze" authorityYear="1886" box="[874,1054,405,431]" class="Hexactinellida" family="Rossellidae" genus="Rhabdocalyptus" kingdom="Animalia" order="Lyssacinosida" pageId="26" pageNumber="73" phylum="Porifera" rank="genus">
<emphasis id="C2A09926D23FAC78FE57949FFBFAFE67" box="[874,1054,405,431]" italics="true" pageId="26" pageNumber="73">Rhabdocalyptus</emphasis>
</taxonomicName>
is a very delicate operation which sometimes requires use of notable amounts of sponge for the spicule preparation.
</paragraph>
<paragraph id="F06B4534D23FAC78FDFA94D7FD4DFDD3" blockId="26.[151,1437,153,611]" pageId="26" pageNumber="73">
<emphasis id="C2A09926D23FAC78FDFA94D7FEAAFE3F" bold="true" box="[199,334,477,503]" pageId="26" pageNumber="73">Etymology.</emphasis>
The species is named for Oliver Gomez from the Western Australian Museum for his dedication to the sponge and marine invertebrate collections.
</paragraph>
<paragraph id="F06B4534D23FAC78FDFA972EFB04FDAB" blockId="26.[151,1437,153,611]" pageId="26" pageNumber="73">
<emphasis id="C2A09926D23FAC78FDFA972EFE85FDF7" bold="true" box="[199,353,548,575]" pageId="26" pageNumber="73">Distribution.</emphasis>
Currently found only in the Perth Canyon at 936 meters depth. The sub genus has numerous species and it has been recorded from the Indian Ocean previously, off
<collectingCountry id="88C305A4D23FAC78FEB39743FBF9FDAB" box="[910,1053,585,611]" name="South Africa" pageId="26" pageNumber="73">South Africa</collectingCountry>
and
<collectingCountry id="88C305A4D23FAC78F96E9743FB38FDAB" box="[1107,1244,585,611]" name="Madagascar" pageId="26" pageNumber="73">Madagascar</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>