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<document id="12AA7B9FB1C8CA0C405FE2C9E4E15545" ID-CLB-Dataset="37320" ID-DOI="10.5281/zenodo.272951" ID-GBIF-Dataset="e2c88f4c-3ac2-45f9-95e4-99b75561a081" ID-ISSN="1175-5326" ID-Zenodo-Dep="272951" ID-ZooBank="6D68A019-6F63-4AA4-A8B3-92D351F1F69B" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1484409208030" checkinUser="plazi" docAuthor="Van, Rob W. M." docDate="2017" docId="03A8001077F5FF08FF14A67E94F6FCE5" docLanguage="en" docName="zootaxa.4217.1.1.pdf.imf" docOrigin="Zootaxa 1" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Hymenancora cristoboi Van, 2017, sp. nov." docType="treatment" docVersion="21" lastPageNumber="165" masterDocId="FF9178687757FFACFF83A36B907DFF9A" masterDocTitle="Sponges of the Guyana Shelf" masterLastPageNumber="225" masterPageNumber="1" pageNumber="163" updateTime="1698435695899" updateUser="ExternalLinkService">
<mods:mods id="5057C7B884473FB2102985F826C2EBFB" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="5100E930D6F9A0AFF272B7BB800596E5">
<mods:title id="72731121DD3995F0CB79830170042615">Sponges of the Guyana Shelf</mods:title>
</mods:titleInfo>
<mods:name id="DE3923CF5339CA759A4A2CA95E64BAE8" type="personal">
<mods:role id="A49C9209BCCE92B37455D141543F7DE5">
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</mods:role>
<mods:namePart id="81CF9A70B2F5D4E164CB6AB5C337E7F6">Van, Rob W. M.</mods:namePart>
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<mods:typeOfResource id="4D11F31E11B5A98AADD52DBBF496E9B3">text</mods:typeOfResource>
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<mods:title id="6E88F0E796081AD29C2B9D18468AEF8A">Zootaxa</mods:title>
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<mods:part id="79932EC220A8FF1F5C171C064211428A">
<mods:date id="361AA44E99C66F032BA691272A685336">2017</mods:date>
<mods:detail id="6969E1B604D21B91822F2F6153B6CB72" type="issue">
<mods:number id="425E0C42AE55F3026F83E6B9C2014DB8">1</mods:number>
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<mods:classification id="4493F44619467A53465EB406FB97E330">journal article</mods:classification>
<mods:identifier id="B233020B9F20D5C7B0255AE5A4AF5BC9" type="CLB-Dataset">37320</mods:identifier>
<mods:identifier id="B5D6791E28975A956F09EA63E073EC4C" type="DOI">10.5281/zenodo.272951</mods:identifier>
<mods:identifier id="78557D74016D44E0CD2B979D23941B53" type="GBIF-Dataset">e2c88f4c-3ac2-45f9-95e4-99b75561a081</mods:identifier>
<mods:identifier id="A4242414AC4DFCA7CD361F39DFE23966" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="E98353D87741D0F4F3D6838A850EB48A" type="Zenodo-Dep">272951</mods:identifier>
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<treatment id="03A8001077F5FF08FF14A67E94F6FCE5" ID-DOI="http://doi.org/10.5281/zenodo.5698724" ID-GBIF-Taxon="127419844" ID-Zenodo-Dep="5698724" LSID="urn:lsid:plazi:treatment:03A8001077F5FF08FF14A67E94F6FCE5" httpUri="http://treatment.plazi.org/id/03A8001077F5FF08FF14A67E94F6FCE5" lastPageId="164" lastPageNumber="165" pageId="162" pageNumber="163">
<subSubSection id="C31BE28D77F5FF0EFF14A67E9143FACA" pageId="162" pageNumber="163" type="nomenclature">
<paragraph id="8BBEB10677F5FF0EFF14A67E9265FAB5" blockId="162.[151,536,1301,1360]" box="[151,536,1301,1327]" pageId="162" pageNumber="163">
<heading id="D0F6066A77F5FF0EFF14A67E9265FAB5" bold="true" box="[151,536,1301,1327]" fontSize="11" level="1" pageId="162" pageNumber="163" reason="1">
<emphasis id="B9756D1477F5FF0EFF14A67E9265FAB5" bold="true" box="[151,536,1301,1327]" pageId="162" pageNumber="163">
<taxonomicName id="4C01CA8577F5FF0EFF14A67E91CEFAB5" ID-CoL="3NHLR" box="[151,435,1301,1327]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="162" pageNumber="163" phylum="Porifera" rank="species" species="cristoboi" status="sp. nov.">
<emphasis id="B9756D1477F5FF0EFF14A67E91CEFAB5" bold="true" box="[151,435,1301,1327]" italics="true" pageId="162" pageNumber="163">Hymenancora cristoboi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A246D06F77F5FF0EFE39A67E9265FAB5" box="[442,536,1301,1327]" pageId="162" pageNumber="163" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BBEB10677F5FF0EFF14A65C9143FACA" blockId="162.[151,536,1301,1360]" box="[151,318,1335,1360]" pageId="162" pageNumber="163">
<figureCitation id="133AAD8377F5FF0EFF14A65C9166FACA" box="[151,283,1335,1360]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figures 102</figureCitation>
a–i
</paragraph>
</subSubSection>
<subSubSection id="C31BE28D77F5FF0EFF14A6149383FA27" pageId="162" pageNumber="163" type="materials_examined">
<paragraph id="8BBEB10677F5FF0EFF14A6149383FA27" blockId="162.[151,1437,1407,2009]" pageId="162" pageNumber="163">
<materialsCitation id="3B69BB5B77F5FF0EFF14A6149387FA27" ID-GBIF-Occurrence="1424726567" collectingDate="1969-04-16" collectionCode="RMNH" collectorName="Luymes O. C. P. S." country="Suriname" elevation="130" latitude="7.3083" location="Suriname" longLatPrecision="7" longitude="-54.1667" pageId="162" pageNumber="163" specimenCount="1" typeStatus="holotype">
<emphasis id="B9756D1477F5FF0EFF14A6149102FA02" bold="true" box="[151,383,1407,1432]" pageId="162" pageNumber="163">Material examined.</emphasis>
<typeStatus id="54BA0FA477F5FF0EFE05A6149193FA02" box="[390,494,1407,1432]" pageId="162" pageNumber="163" type="holotype">Holotype</typeStatus>
<collectionCode id="ED1029C377F5FF0EFE77A6EB9235FA0D" box="[500,584,1408,1431]" country="Netherlands" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="162" pageNumber="163">RMNH</collectionCode>
Por. 9920,
<collectingCountry id="F316F19677F5FF0EFD45A6149349FA02" box="[710,820,1407,1432]" name="Suriname" pageId="162" pageNumber="163">Suriname</collectingCountry>
, ‘
<collectorName id="26F4D4D077F5FF0EFCC0A6EB9475FA02" box="[835,1032,1408,1432]" pageId="162" pageNumber="163">Luymes O.C.P.S.</collectorName>
II’
<collectingCountry id="F316F19677F5FF0EFBA9A6EB94FCFA02" box="[1066,1153,1408,1432]" name="Guyana" pageId="162" pageNumber="163">Guyana</collectingCountry>
Shelf Expedition, station M97,
<geoCoordinate id="EE35D7C177F5FF0EFF59A6CF913BFA26" box="[218,326,1444,1468]" direction="north" orientation="latitude" pageId="162" pageNumber="163" precision="5" value="7.3083">7.3083°N</geoCoordinate>
<geoCoordinate id="EE35D7C177F5FF0EFECEA6CF91B3FA27" box="[333,462,1444,1469]" direction="west" orientation="longitude" pageId="162" pageNumber="163" precision="5" value="-54.1667">54.1667°W</geoCoordinate>
, depth
<quantity id="4CF91CE377F5FF0EFD9DA6CF921AFA26" box="[542,615,1444,1468]" metricMagnitude="2" metricUnit="m" metricValue="1.3" pageId="162" pageNumber="163" unit="m" value="130.0">
<elevation id="002C563577F5FF0EFD9DA6CF921AFA26" box="[542,615,1444,1468]" metricMagnitude="2" metricUnit="m" metricValue="1.3" pageId="162" pageNumber="163" unit="m" value="130.0">130 m</elevation>
</quantity>
, bottom coarse sand,
<date id="FFBF97C677F5FF0EFCD9A6CF9387FA27" box="[858,1018,1444,1469]" pageId="162" pageNumber="163" value="1969-04-16">
<collectingDate id="EFFB6E2E77F5FF0EFCD9A6CF9387FA27" box="[858,1018,1444,1469]" pageId="162" pageNumber="163" value="1969-04-16">16 April 1969</collectingDate>
</date>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C31BE28D77F5FF0FFF44A6AC912DFEDA" lastPageId="163" lastPageNumber="164" pageId="162" pageNumber="163" type="description">
<paragraph id="8BBEB10677F5FF0EFF44A6AC9432F99F" blockId="162.[151,1437,1407,2009]" pageId="162" pageNumber="163">
<emphasis id="B9756D1477F5FF0EFF44A6AC9124FA7A" bold="true" box="[199,345,1479,1504]" pageId="162" pageNumber="163">Description.</emphasis>
(
<figureCitation id="133AAD8377F5FF0EFEE4A6AC91BBFA7A" box="[359,454,1479,1504]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Fig. 102</figureCitation>
a) Thinly encrusting on a piece of a dead bryozoan, surface smooth but irregular. Lateral size about 1
<date id="FFBF97C677F5FF0EFEA7A686913AF99E" box="[292,327,1516,1540]" pageId="162" pageNumber="163">
x
<quantity id="4CF91CE377F5FF0EFEBAA687913AF99E" box="[313,327,1516,1540]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="162" pageNumber="163" unit="cm" value="1.0">1</quantity>
</date>
cm, thicknes &lt;
<quantity id="4CF91CE377F5FF0EFE76A687924BF99E" box="[501,566,1516,1540]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="162" pageNumber="163" unit="mm" value="1.0">1 mm</quantity>
. Color in alcohol pale orange. Consistency soft.
</paragraph>
<paragraph id="8BBEB10677F5FF0EFF44A56493CDF9D7" blockId="162.[151,1437,1407,2009]" pageId="162" pageNumber="163">
<emphasis id="B9756D1477F5FF0EFF44A5649148F9B2" bold="true" box="[199,309,1551,1576]" pageId="162" pageNumber="163">Skeleton.</emphasis>
Hymedesmioid, with larger and smaller acanthostyles erect on the substratum, and scattered tornotes and abundant microscleres in the ectosomal and subectosomal regions.
</paragraph>
<paragraph id="8BBEB10677F5FF0EFF44A53C9457F9EA" blockId="162.[151,1437,1407,2009]" box="[199,1066,1623,1648]" pageId="162" pageNumber="163">
<emphasis id="B9756D1477F5FF0EFF44A53C914DF9EA" bold="true" box="[199,304,1623,1648]" pageId="162" pageNumber="163">Spicules.</emphasis>
(
<figureCitation id="133AAD8377F5FF0EFEBCA53C91DCF9EA" box="[319,417,1623,1648]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figs 102</figureCitation>
b–i) Acanthostyles, tornotes, anchorate isochelae, sigmas.
</paragraph>
<paragraph id="8BBEB10677F5FF0EFF44A51790B9F89A" blockId="162.[151,1437,1407,2009]" pageId="162" pageNumber="163">
Acanthostyles in a wide size range, divisible into larger partially spined (shaft smooth or sparingly spined) and smaller entirely spined categories, both provided with swollen profusedly spined heads; (1) large acanthostyles (
<figureCitation id="133AAD8377F5FF0EFF1CA5AF9178F947" box="[159,261,1732,1757]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figs 102</figureCitation>
b,b1) 174–
<emphasis id="B9756D1477F5FF0EFEF9A5AF91D9F946" box="[378,420,1732,1756]" italics="true" pageId="162" pageNumber="163">214</emphasis>
–237
<date id="FFBF97C677F5FF0EFE61A5AE926CF946" box="[482,529,1732,1756]" pageId="162" pageNumber="163" value="2012-10">x 12</date>
–
<emphasis id="B9756D1477F5FF0EFDA3A5AF922CF946" box="[544,593,1732,1756]" italics="true" pageId="162" pageNumber="163">14.2</emphasis>
–18 µm, and (2) small acanthostyles (
<figureCitation id="133AAD8377F5FF0EFC70A5AF9421F946" box="[1011,1116,1732,1757]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figs 102</figureCitation>
c,c1), 83–
<emphasis id="B9756D1477F5FF0EFB47A5AF949DF946" box="[1220,1248,1732,1756]" italics="true" pageId="162" pageNumber="163">95</emphasis>
–106
<date id="FFBF97C677F5FF0EFA9DA5AE953DF946" box="[1310,1344,1733,1756]" pageId="162" pageNumber="163">x 7</date>
–
<emphasis id="B9756D1477F5FF0EFACCA5AF950FF946" box="[1359,1394,1732,1756]" italics="true" pageId="162" pageNumber="163">8.8</emphasis>
–10 µm.
</paragraph>
<paragraph id="8BBEB10677F5FF0EFF44A46691A1F8F7" blockId="162.[151,1437,1407,2009]" pageId="162" pageNumber="163">
Tornotes (
<figureCitation id="133AAD8377F5FF0EFEB9A46791DCF8BF" box="[314,417,1804,1829]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figs 102</figureCitation>
d), with mucronate apices, slightly dissimilar at opposite ends, either lightly spined (
<figureCitation id="133AAD8377F5FF0EFAECA46790B8F8D2" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Fig. 102</figureCitation>
d,d1) at one end, these forming a minority, or entirely smooth (
<figureCitation id="133AAD8377F5FF0EFC2DA444946AF8D2" box="[942,1047,1839,1864]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figs 102</figureCitation>
d2,d3), forming the majority, size 156–
<emphasis id="B9756D1477F5FF0EFF4CA43F9084F8F6" box="[207,249,1876,1900]" italics="true" pageId="162" pageNumber="163">177</emphasis>
–201
<date id="FFBF97C677F5FF0EFEBBA43E9124F8F6" box="[312,345,1876,1900]" pageId="162" pageNumber="163">x 3</date>
–
<emphasis id="B9756D1477F5FF0EFEEAA43F91F1F8F7" box="[361,396,1876,1901]" italics="true" pageId="162" pageNumber="163">3.6</emphasis>
–5 µm.
</paragraph>
<paragraph id="8BBEB10677F5FF0FFF44A41C9542FF4F" blockId="162.[151,1437,1407,2009]" lastBlockId="163.[151,1437,151,320]" lastPageId="163" lastPageNumber="164" pageId="162" pageNumber="163">
Anchorate isochelae tridentate with incipient fimbriae at opposite ends on the shaft; there are three size categories, the larger and middle-sized chelae (
<figureCitation id="133AAD8377F5FF0EFD3BA4F79360F82F" box="[696,797,1948,1973]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Figs 102</figureCitation>
e–f) shaped similarly, the smallest (G=
<figureCitation id="133AAD8377F5FF0EFB62A4F7953FF82E" box="[1249,1346,1948,1973]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">
Fig.
<quantity id="4CF91CE377F5FF0EFA94A4F7953FF82E" box="[1303,1346,1948,1972]" metricMagnitude="-1" metricUnit="kg" metricValue="1.02" pageId="162" pageNumber="163" unit="g" value="102.0">102</quantity>
</figureCitation>
g) more elongate; (1) largest chelae (
<figureCitation id="133AAD8377F5FF0EFE64A4AB9230F842" box="[487,589,1984,2009]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="162" pageNumber="163">Fig. 102</figureCitation>
e), occasionally with four alae instead of three, caused by a split in the innermost ala, 36–
<emphasis id="B9756D1477F4FF0FFEEFA3F391E0FF2A" box="[364,413,152,176]" italics="true" pageId="163" pageNumber="164">49.2</emphasis>
–54 µm, (2) middle-sized chelae (
<figureCitation id="133AAD8377F4FF0FFCA4A3FC93F4FF2A" box="[807,905,151,176]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="163" pageNumber="164">Fig. 102</figureCitation>
f), 19–
<emphasis id="B9756D1477F4FF0FFC56A3F3947BFF2A" box="[981,1030,152,176]" italics="true" pageId="163" pageNumber="164">22.2</emphasis>
–24 µm, and (3) small chelae (
<figureCitation id="133AAD8377F4FF0FFAEDA3FC90BFFF4E" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="163" pageNumber="164">
Fig.
<quantity id="4CF91CE377F4FF0FFF14A3D790BFFF4E" box="[151,194,188,212]" metricMagnitude="-1" metricUnit="kg" metricValue="1.02" pageId="163" pageNumber="164" unit="g" value="102.0">102</quantity>
</figureCitation>
g) almost overlapping in size with the middle-sized chelae but recognizable by shape, 12–
<emphasis id="B9756D1477F4FF0FFB33A3D7949CFF4F" box="[1200,1249,188,213]" italics="true" pageId="163" pageNumber="164">13.6</emphasis>
–18 µm.
</paragraph>
<paragraph id="8BBEB10677F4FF0FFF44A3B4912DFEDA" blockId="163.[151,1437,151,320]" pageId="163" pageNumber="164">
Sigmas, symmetrical, with incurved apices, in a large size range, but divisible in at least two size categories (the smaller possibly further divisible), (1) larger (
<figureCitation id="133AAD8377F4FF0FFD75A26F9320FE87" box="[758,861,260,285]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="163" pageNumber="164">Fig. 102</figureCitation>
h), 69–
<emphasis id="B9756D1477F4FF0FFC32A26F939FFE86" box="[945,994,260,284]" italics="true" pageId="163" pageNumber="164">81.3</emphasis>
–97 µm, and (2) smaller (
<figureCitation id="133AAD8377F4FF0FFA9CA26F95FAFE87" box="[1311,1415,260,285]" captionStart="FIGURE 102" captionStartId="163.[151,250,1678,1700]" captionTargetBox="[155,1440,361,1655]" captionTargetId="figure@163.[155,1440,361,1655]" captionTargetPageId="163" captionText="FIGURE 102. Hymenancora cristoboi sp. nov., a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b – i, SEM images of the spicules, b, large acanthostyle, b 1, detail of b, c, small acanthostyle, c 1, detail of c, d, acanthose tornote, d 1, detail of d, d 2, smooth tornote, d 3, detail of d 2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g 1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma." httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="163" pageNumber="164">Fig. 102</figureCitation>
i), 18–
<emphasis id="B9756D1477F4FF0FFF42A243908FFEDA" box="[193,242,296,320]" italics="true" pageId="163" pageNumber="164">41.4</emphasis>
–54 µm.
</paragraph>
</subSubSection>
<caption id="DF7EE18E77F4FF0FFF14A5E593B7F89B" httpUri="https://zenodo.org/record/273053/files/figure.png" pageId="163" pageNumber="164" targetBox="[155,1440,361,1655]" targetPageId="163">
<paragraph id="8BBEB10677F4FF0FFF14A5E593B7F89B" blockId="163.[151,1436,1678,1793]" pageId="163" pageNumber="164">
<emphasis id="B9756D1477F4FF0FFF14A5E59151F93E" bold="true" box="[151,300,1678,1700]" pageId="163" pageNumber="164">FIGURE 102.</emphasis>
<taxonomicName id="4C01CA8577F4FF0FFEB0A5FB925EF93E" box="[307,547,1678,1701]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="163" pageNumber="164" phylum="Porifera" rank="species" species="cristoboi" status="sp. nov.">
<emphasis id="B9756D1477F4FF0FFEB0A5FB925EF93E" box="[307,547,1678,1701]" italics="true" pageId="163" pageNumber="164">Hymenancora cristoboi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A246D06F77F4FF0FFDA9A5E49206F93E" box="[554,635,1679,1700]" pageId="163" pageNumber="164" rank="species">
<emphasis id="B9756D1477F4FF0FFDA9A5E49206F93E" bold="true" box="[554,635,1679,1700]" pageId="163" pageNumber="164">sp. nov.</emphasis>
</taxonomicNameLabel>
, a, habitus of holotype RMNH Por. 9920 (scale bar = 1 cm), b–i, SEM images of the spicules, b, large acanthostyle, b1, detail of b, c, small acanthostyle, c1, detail of c, d, acanthose tornote, d1, detail of d, d2, smooth tornote, d3, detail of d2, e, large anchorate isochela, f, middle-sized anchorate isochela, g, smallest anchorate isochela, g1, enlarged smallest anchorate isochela, h, large sigma, i, small sigma.
</paragraph>
</caption>
<subSubSection id="C31BE28D77F4FF0FFF44A4439393F8DB" box="[199,1006,1832,1857]" pageId="163" pageNumber="164" type="distribution">
<paragraph id="8BBEB10677F4FF0FFF44A4439393F8DB" blockId="163.[151,1437,1832,2037]" box="[199,1006,1832,1857]" pageId="163" pageNumber="164">
<emphasis id="B9756D1477F4FF0FFF44A443918FF8DB" bold="true" box="[199,498,1832,1857]" pageId="163" pageNumber="164">Distribution and ecology.</emphasis>
<collectingCountry id="F316F19677F4FF0FFE7AA443922DF8DA" box="[505,592,1832,1856]" name="Guyana" pageId="163" pageNumber="164">Guyana</collectingCountry>
Shelf, sandy bottom at
<quantity id="4CF91CE377F4FF0FFCD9A44393DCF8DA" box="[858,929,1832,1856]" metricMagnitude="2" metricUnit="m" metricValue="1.3" pageId="163" pageNumber="164" unit="m" value="130.0">130 m</quantity>
depth.
</paragraph>
</subSubSection>
<subSubSection id="C31BE28D77F4FF0FFF44A42792A2F813" pageId="163" pageNumber="164" type="etymology">
<paragraph id="8BBEB10677F4FF0FFF44A42792A2F813" blockId="163.[151,1437,1832,2037]" pageId="163" pageNumber="164">
<emphasis id="B9756D1477F4FF0FFF44A4279133F8FF" bold="true" box="[199,334,1868,1893]" pageId="163" pageNumber="164">Etymology.</emphasis>
Named after Dr Javier Cristobo (Instituto Español de Oceanografia, Gijon,
<collectingCountry id="F316F19677F4FF0FFB1FA42794A3F8FF" box="[1180,1246,1868,1893]" name="Spain" pageId="163" pageNumber="164">Spain</collectingCountry>
) to acknowledge his great efforts to unravel poecilosclerid taxonomy.
</paragraph>
</subSubSection>
<subSubSection id="C31BE28D77F4FF08FF44A4FF94B7FE55" lastPageId="164" lastPageNumber="165" pageId="163" pageNumber="164" type="discussion">
<paragraph id="8BBEB10677F4FF08FF44A4FF92D6FE36" blockId="163.[151,1437,1832,2037]" lastBlockId="164.[151,1437,151,896]" lastPageId="164" lastPageNumber="165" pageId="163" pageNumber="164">
<emphasis id="B9756D1477F4FF0FFF44A4FF9146F837" bold="true" box="[199,315,1940,1965]" pageId="163" pageNumber="164">Remarks.</emphasis>
To date no
<taxonomicName id="4C01CA8577F4FF0FFE4AA4FE9215F836" box="[457,616,1941,1964]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="163" pageNumber="164" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F4FF0FFE4AA4FE9215F836" box="[457,616,1941,1964]" italics="true" pageId="163" pageNumber="164">Hymenancora</emphasis>
</taxonomicName>
species have been reported from the Tropical
<collectingRegion id="49C57FE477F4FF0FFB06A4FE949DF836" box="[1157,1248,1941,1964]" country="Sri Lanka" name="Western" pageId="163" pageNumber="164">Western</collectingRegion>
Atlantic region. The genus is typically confined to colder and deeper waters. The present species appears close to the Chilean species
<taxonomicName id="4C01CA8577F4FF0FFF6DA4B69253F86F" authority="Thiele, 1905" authorityName="Thiele" authorityYear="1905" box="[238,558,2012,2037]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="163" pageNumber="164" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F4FF0FFF6DA4B691F5F86E" box="[238,392,2013,2036]" italics="true" pageId="163" pageNumber="164">H. tenuissima</emphasis>
(
<bibRefCitation id="EF90CCF777F4FF0FFE15A4B79258F86F" author="Thiele" box="[406,549,2012,2037]" pageId="163" pageNumber="164" refString="Thiele, J. (1905) Die Kiesel- und Hornschwamme der Sammlung Plate. Zoologische Jahrbucher, Supplement, 6 (Fauna Chilensis III), pp. 407 - 496." type="journal article" year="1905">Thiele, 1905</bibRefCitation>
)
</taxonomicName>
(as
<taxonomicName id="4C01CA8577F4FF0FFDDFA4B79290F86F" box="[604,749,2012,2037]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="163" pageNumber="164" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F4FF0FFDDFA4B79290F86F" box="[604,749,2012,2037]" italics="true" pageId="163" pageNumber="164">Hymedesmia</emphasis>
</taxonomicName>
). This differs from the present species in having only a single sigma category and only two chela categories the smaller of which has 5 alae, and all tornotes are heavily spined. Antarctic
<taxonomicName id="4C01CA8577F3FF08FE85A3D69244FF4E" authority="Kirkpatrick, 1907" authorityName="Kirkpatrick" authorityYear="1907" box="[262,569,188,213]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="rufa">
<emphasis id="B9756D1477F3FF08FE85A3D6912AFF4E" box="[262,343,188,212]" italics="true" pageId="164" pageNumber="165">H. rufa</emphasis>
(
<bibRefCitation id="EF90CCF777F3FF08FEE5A3D7924DFF4E" author="Kirkpatrick" box="[358,560,188,213]" pageId="164" pageNumber="165" refString="Kirkpatrick, R. (1907) Preliminary Report on the Monaxonellida of the National Antarctic Expedition. Annals and Magazine of Natural History, (7) 20 (117), 271 - 291." type="journal article" year="1907">Kirkpatrick, 1907</bibRefCitation>
)
</taxonomicName>
(as
<taxonomicName id="4C01CA8577F3FF08FDEBA3D79289FF4F" box="[616,756,188,213]" class="Demospongiae" family="Raspailiidae" genus="Hymeraphia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FDEBA3D79289FF4F" box="[616,756,188,213]" italics="true" pageId="164" pageNumber="165">Hymeraphia</emphasis>
</taxonomicName>
) is also similar but lacks sigmas entirely. The nearest record of
<taxonomicName id="4C01CA8577F3FF08FF3BA38A912AFF62" box="[184,343,225,248]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FF3BA38A912AFF62" box="[184,343,225,248]" italics="true" pageId="164" pageNumber="165">Hymenancora</emphasis>
</taxonomicName>
is likely from
<collectingRegion id="49C57FE477F3FF08FD86A38B9204FF62" box="[517,633,223,248]" country="Brazil" name="Sao Paulo" pageId="164" pageNumber="165">Sao Paulo</collectingRegion>
State at
<quantity id="4CF91CE377F3FF08FD62A3B49356FF6D" box="[737,811,223,248]" metricMagnitude="2" metricUnit="m" metricValue="5.0" pageId="164" pageNumber="165" unit="m" value="500.0">500 m</quantity>
depth off SE
<collectingCountry id="F316F19677F3FF08FC53A3B49469FF62" box="[976,1044,223,248]" name="Brazil" pageId="164" pageNumber="165">Brazil</collectingCountry>
(
<bibRefCitation id="EF90CCF777F3FF08FBA5A3B491E4FE87" pageId="164" pageNumber="165" refString="Hajdu, E. &amp; Lopes, D. A. (2007) Checklist of Brazilian deep-sea sponges. In: Custodio, M. R., Lobo-Hajdu, G., Hajdu, E. &amp; Muricy, G. (Eds.), Porifera Research: Biodiversity, Innovation and Sustainability. Museu Nacional, Rio de Janeiro, Brazil, pp. 353 - 359." type="book chapter">
Hajdu &amp; Lopes 2007, p. 355, as
<taxonomicName id="4C01CA8577F3FF08FF14A26F91E4FE87" box="[151,409,260,285]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima" subGenus="Ectyomyxilla">
<emphasis id="B9756D1477F3FF08FF14A26F91E4FE87" box="[151,409,260,285]" italics="true" pageId="164" pageNumber="165">Myxilla (Ectyomyxilla)</emphasis>
</taxonomicName>
</bibRefCitation>
tenuissima), later reassigned to
<taxonomicName id="4C01CA8577F3FF08FC8BA26E93DAFE86" box="[776,935,261,284]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FC8BA26E93DAFE86" box="[776,935,261,284]" italics="true" pageId="164" pageNumber="165">Hymenancora</emphasis>
</taxonomicName>
by Muricy
<emphasis id="B9756D1477F3FF08FBADA26E941AFE87" box="[1070,1127,260,285]" italics="true" pageId="164" pageNumber="165">et al.</emphasis>
2011, p. 164. It is possible that these records concern the present new species, but since no description of this material was presented by either Hajdu &amp; Lopes or Muricy
<emphasis id="B9756D1477F3FF08FE53A2269271FEFF" box="[464,524,332,357]" italics="true" pageId="164" pageNumber="165">et al.</emphasis>
it remains uncertain what the exact identity is. Lévi (1963) reported this same species from
<collectingCountry id="F316F19677F3FF08FEAEA20491C3FE12" box="[301,446,367,392]" name="South Africa" pageId="164" pageNumber="165">
<collectingRegion id="49C57FE477F3FF08FEAEA2049113FE12" box="[301,366,367,392]" country="Tanzania" name="Kusini Unguja" pageId="164" pageNumber="165">South</collectingRegion>
Africa
</collectingCountry>
(as
<taxonomicName id="4C01CA8577F3FF08FE6DA204937DFE12" box="[494,768,367,392]" class="Demospongiae" family="Hymedesmiidae" genus="Ectyomyxilla" higherTaxonomySource="CoL" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FE6DA204937DFE12" box="[494,768,367,392]" italics="true" pageId="164" pageNumber="165">Ectyomyxilla tenuissima</emphasis>
</taxonomicName>
), but his description does not conform to Thiele’s, and this sponge is not likely to belong to
<taxonomicName id="4C01CA8577F3FF08FD86A2FE92DEFE36" box="[517,675,405,428]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FD86A2FE92DEFE36" box="[517,675,405,428]" italics="true" pageId="164" pageNumber="165">Hymenancora</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BBEB10677F3FF08FF44A2D394B7FE55" blockId="164.[151,1437,151,896]" box="[199,1226,439,464]" pageId="164" pageNumber="165">
I take this opportunity to discuss several homonyms involving the species name
<taxonomicName id="4C01CA8577F3FF08FBC8A2D294BEFE4A" box="[1099,1219,441,464]" class="Demospongiae" family="Hymedesmiidae" genus="Ectyomyxilla" higherTaxonomySource="CoL" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FBC8A2D294BEFE4A" box="[1099,1219,441,464]" italics="true" pageId="164" pageNumber="165">tenuissima</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C31BE28D77F3FF08FF44A2B794F6FCE5" pageId="164" pageNumber="165" type="reference_group">
<paragraph id="8BBEB10677F3FF08FF44A2B7951AFD82" blockId="164.[151,1437,151,896]" pageId="164" pageNumber="165">
<taxonomicName id="4C01CA8577F3FF08FF44A2B79216FE6F" ID-CoL="3NH9L" authority="Thiele, 1905" authorityName="Thiele" authorityYear="1905" box="[199,619,476,501]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FF44A2B791ABFE6E" box="[199,470,476,501]" italics="true" pageId="164" pageNumber="165">Hymedesmia tenuissima</emphasis>
<bibRefCitation id="EF90CCF777F3FF08FE5EA2B79216FE6F" author="Thiele" box="[477,619,476,501]" pageId="164" pageNumber="165" refString="Thiele, J. (1905) Die Kiesel- und Hornschwamme der Sammlung Plate. Zoologische Jahrbucher, Supplement, 6 (Fauna Chilensis III), pp. 407 - 496." type="journal article" year="1905">Thiele, 1905</bibRefCitation>
</taxonomicName>
(p. 454) was transferred to
<taxonomicName id="4C01CA8577F3FF08FC22A2B7944EFE6F" box="[929,1075,476,501]" class="Demospongiae" family="Hymedesmiidae" genus="Ectyomyxilla" higherTaxonomySource="CoL" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FC22A2B7944EFE6F" box="[929,1075,476,501]" italics="true" pageId="164" pageNumber="165">Ectyomyxilla</emphasis>
</taxonomicName>
by Lévi (1963) (but see above), to
<taxonomicName id="4C01CA8577F3FF08FF37A29491C8FD82" ID-CoL="84QNX" authority="(Ectyomyxilla)" baseAuthorityName="Ectyomyxilla" box="[180,437,511,536]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FF37A29491C8FD82" box="[180,437,511,536]" italics="true" pageId="164" pageNumber="165">Myxilla (Ectyomyxilla)</emphasis>
</taxonomicName>
by
<bibRefCitation id="EF90CCF777F3FF08FE5CA29492A0FD82" author="Hajdu" box="[479,733,511,536]" pageId="164" pageNumber="165" refString="Hajdu, E. &amp; Lopes, D. A. (2007) Checklist of Brazilian deep-sea sponges. In: Custodio, M. R., Lobo-Hajdu, G., Hajdu, E. &amp; Muricy, G. (Eds.), Porifera Research: Biodiversity, Innovation and Sustainability. Museu Nacional, Rio de Janeiro, Brazil, pp. 353 - 359." type="book chapter" year="2007">Hajdu &amp; Lopes (2007)</bibRefCitation>
and subsequently to
<taxonomicName id="4C01CA8577F3FF08FC49A16A9414FD82" ID-CoL="84P7L" box="[970,1129,513,536]" class="Demospongiae" family="Myxillidae" genus="Hymenancora" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FC49A16A9414FD82" box="[970,1129,513,536]" italics="true" pageId="164" pageNumber="165">Hymenancora</emphasis>
</taxonomicName>
by
<bibRefCitation id="EF90CCF777F3FF08FB11A16B951EFD82" box="[1170,1379,512,536]" pageId="164" pageNumber="165" refString="Van Soest, R. W. M. (2002 c) Family Myxillidae Dendy, 1922. In: Hooper, J. N. A. &amp; Van Soest, R. W. M. (Eds.), Systema Porifera. A guide to the classification of sponges 1. Kluwer Academic / Plenum Publishers, New York, Boston, Dordrecht, London, Moscow, 602 - 620." type="journal article">Van Soest (2002c)</bibRefCitation>
.
</paragraph>
<paragraph id="8BBEB10677F3FF08FF44A14F94A1FD57" blockId="164.[151,1437,151,896]" pageId="164" pageNumber="165">
<taxonomicName id="4C01CA8577F3FF08FF44A14F9248FDA7" ID-CoL="8WR9M" authority="Dendy, 1905" authorityName="Dendy" authorityYear="1905" box="[199,565,548,573]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FF44A14F91E0FDA6" box="[199,413,548,573]" italics="true" pageId="164" pageNumber="165">Myxilla tenuissima</emphasis>
<bibRefCitation id="EF90CCF777F3FF08FE26A14F9248FDA7" author="Dendy" box="[421,565,548,573]" pageId="164" pageNumber="165" refString="Dendy, A. (1905) Report on the sponges collected by Professor Herdman, at Ceylon, in 1902. In: Herdman, W. A. (Ed.), Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, 3 (Supplement 18). Royal Society, London, pp. 57 - 246." type="journal article" year="1905">Dendy, 1905</bibRefCitation>
</taxonomicName>
(p. 169) was transferred to
<taxonomicName id="4C01CA8577F3FF08FCF0A14F9479FDA7" ID-CoL="84P7K" box="[883,1028,548,573]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FCF0A14F9479FDA7" box="[883,1028,548,573]" italics="true" pageId="164" pageNumber="165">Hymedesmia</emphasis>
</taxonomicName>
by
<bibRefCitation id="EF90CCF777F3FF08FBB3A14E94A6FDA6" author="Topsent" box="[1072,1243,548,572]" pageId="164" pageNumber="165" refString="Topsent, E. (1928) Spongiaires de l'Atlantique et de la Mediterranee provenant des croisieres du Prince Albert ler de Monaco. Resultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco, 74, 1 - 376." type="journal article" year="1928">Topsent (1928)</bibRefCitation>
(p. 252) without comment. It is quite clear from Dendy’s description and figures of the spicules, that Topsent was right in considering
<taxonomicName id="4C01CA8577F3FF08FEA7A1079186FD1E" ID-CoL="8WR9M" box="[292,507,620,645]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FEA7A1079186FD1E" box="[292,507,620,645]" italics="true" pageId="164" pageNumber="165">Myxilla tenuissima</emphasis>
</taxonomicName>
to be a
<taxonomicName id="4C01CA8577F3FF08FDE3A107928CFD1F" ID-CoL="84P7K" box="[608,753,620,645]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FDE3A107928CFD1F" box="[608,753,620,645]" italics="true" pageId="164" pageNumber="165">Hymedesmia</emphasis>
</taxonomicName>
. Topsent’s use of the combination
<taxonomicName id="4C01CA8577F3FF08FB0AA1079089FD32" ID-CoL="3NH9L" authority="Dendy" authorityName="Dendy" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FB0AA10795E1FD1E" box="[1161,1436,620,645]" italics="true" pageId="164" pageNumber="165">Hymedesmia tenuissima</emphasis>
(Dendy)
</taxonomicName>
created a secondary junior homonym of Thiele’s
<taxonomicName id="4C01CA8577F3FF08FCACA1E4943DFD32" ID-CoL="3NH9L" box="[815,1088,655,680]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FCACA1E4943DFD32" box="[815,1088,655,680]" italics="true" pageId="164" pageNumber="165">Hymedesmia tenuissima</emphasis>
</taxonomicName>
, but since the latter is now no longer considered congeneric with
<taxonomicName id="4C01CA8577F3FF08FDA3A1DF92CCFD57" ID-CoL="84P7K" box="[544,689,692,717]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FDA3A1DF92CCFD57" box="[544,689,692,717]" italics="true" pageId="164" pageNumber="165">Hymedesmia</emphasis>
</taxonomicName>
,
<taxonomicName id="4C01CA8577F3FF08FD3CA1DE944BFD57" ID-CoL="3NH9L" authority="Dendy, 1905" authorityName="Dendy" authorityYear="1905" box="[703,1078,692,717]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima" subGenus="Hymedesmia">
<emphasis id="B9756D1477F3FF08FD3CA1DE93F3FD56" box="[703,910,692,716]" italics="true" pageId="164" pageNumber="165">H. (H.) tenuissima</emphasis>
(
<bibRefCitation id="EF90CCF777F3FF08FC1FA1DF9453FD57" author="Dendy" box="[924,1070,692,717]" pageId="164" pageNumber="165" refString="Dendy, A. (1905) Report on the sponges collected by Professor Herdman, at Ceylon, in 1902. In: Herdman, W. A. (Ed.), Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, 3 (Supplement 18). Royal Society, London, pp. 57 - 246." type="journal article" year="1905">Dendy, 1905</bibRefCitation>
)
</taxonomicName>
remains valid.
</paragraph>
<paragraph id="8BBEB10677F3FF08FF44A1BC94F6FCE5" blockId="164.[151,1437,151,896]" pageId="164" pageNumber="165">
The combination
<taxonomicName id="4C01CA8577F3FF08FE0CA1BC929BFD6A" ID-CoL="8WR9M" authority="Row, 1911" authorityName="Row" authorityYear="1911" box="[399,742,727,752]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FE0CA1BC9218FD6A" box="[399,613,727,752]" italics="true" pageId="164" pageNumber="165">Myxilla tenuissima</emphasis>
<bibRefCitation id="EF90CCF777F3FF08FDEEA1B3929BFD6A" author="Row" box="[621,742,728,752]" pageId="164" pageNumber="165" refString="Row, R. W. H. (1911) Reports on the marine biology of the Sudanese Red Sea, from collections made by Cyril Crossland, M. A., B. Sc., F. Z. S. XIX. Report on the sponges collected by Mr. Cyril Crossland in 1904 - 5. Part II. Non-Calcarea. Journal of the Linnean Society. Zoology, 31 (208), 287 - 400." type="journal article" year="1911">Row, 1911</bibRefCitation>
</taxonomicName>
(p. 345) is a junior primary homonym of
<taxonomicName id="4C01CA8577F3FF08FB45A1BC9156FC8F" ID-CoL="8WR9M" authority="Dendy, 1905" authorityName="Dendy" authorityYear="1905" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FB45A1BC95E1FD6A" box="[1222,1436,727,752]" italics="true" pageId="164" pageNumber="165">Myxilla tenuissima</emphasis>
<bibRefCitation id="EF90CCF777F3FF08FF14A1979156FC8F" author="Dendy" box="[151,299,764,789]" pageId="164" pageNumber="165" refString="Dendy, A. (1905) Report on the sponges collected by Professor Herdman, at Ceylon, in 1902. In: Herdman, W. A. (Ed.), Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, 3 (Supplement 18). Royal Society, London, pp. 57 - 246." type="journal article" year="1905">Dendy, 1905</bibRefCitation>
</taxonomicName>
. Even though Dendy’s species is now considered a
<taxonomicName id="4C01CA8577F3FF08FCFCA1979472FC8F" ID-CoL="84P7K" box="[895,1039,764,789]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FCFCA1979472FC8F" box="[895,1039,764,789]" italics="true" pageId="164" pageNumber="165">Hymedesmia</emphasis>
</taxonomicName>
, this necessitates proposing a new name (ICZN art. 57.2). From its description, it is very likely that Row’s species is also a
<taxonomicName id="4C01CA8577F3FF08FB21A074954EFCA2" ID-CoL="84P7K" box="[1186,1331,799,824]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="genus">
<emphasis id="B9756D1477F3FF08FB21A074954EFCA2" box="[1186,1331,799,824]" italics="true" pageId="164" pageNumber="165">Hymedesmia</emphasis>
</taxonomicName>
, close to Dendy’s
<taxonomicName id="4C01CA8577F3FF08FF7FA02E9109FCC6" ID-CoL="8WR9M" box="[252,372,837,860]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FF7FA02E9109FCC6" box="[252,372,837,860]" italics="true" pageId="164" pageNumber="165">tenuissima</emphasis>
</taxonomicName>
, but its black color (vs. Dendy’s yellow) prevents synonymy of the two. In conclusion, I here propose
<taxonomicName id="4C01CA8577F3FF08FF75A00C9217FC1A" ID-CoL="3NH8W" box="[246,618,871,896]" class="Demospongiae" family="Hymedesmiidae" genus="Hymedesmia" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="rowi" status="nom. nov." subGenus="Hymedesmia">
<emphasis id="B9756D1477F3FF08FF75A00C9217FC1A" box="[246,618,871,896]" italics="true" pageId="164" pageNumber="165">Hymedesmia (Hymedesmia) rowi</emphasis>
</taxonomicName>
<emphasis id="B9756D1477F3FF08FDF1A00C929BFC1A" bold="true" box="[626,742,871,896]" pageId="164" pageNumber="165">
<taxonomicNameLabel id="A246D06F77F3FF08FDF1A00C929BFC1A" box="[626,742,871,896]" pageId="164" pageNumber="165">nom. nov.</taxonomicNameLabel>
</emphasis>
to replace Row’s
<taxonomicName id="4C01CA8577F3FF08FC33A00C94F9FC1A" ID-CoL="8WR9M" box="[944,1156,871,896]" class="Demospongiae" family="Myxillidae" genus="Myxilla" kingdom="Animalia" order="Poecilosclerida" pageId="164" pageNumber="165" phylum="Porifera" rank="species" species="tenuissima">
<emphasis id="B9756D1477F3FF08FC33A00C94F9FC1A" box="[944,1156,871,896]" italics="true" pageId="164" pageNumber="165">Myxilla tenuissima</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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