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<document id="52CC613F88634BE56270B31891677273" ID-DOI="10.11646/zootaxa.3692.1.5" ID-GBIF-Dataset="ddffc7b3-2654-49ec-b046-f32bc78af2d6" ID-ISSN="1175-5326" ID-Zenodo-Dep="249019" ID-ZooBank="136660B8-7DCC-490E-AB79-46546CC18E40" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460652068901" checkinUser="plazi" docAuthor="Göcke, Christian &amp; Janussen, Dorte" docDate="2013" docId="03EF87D0CD0E883D80BEF9C2FCC8FE26" docLanguage="en" docName="zt03692p101.pdf" docOrigin="Zootaxa 3692 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Haliclona (Rhizoniera) dancoi Topsent 1901" docType="treatment" docVersion="9" lastPageNumber="91" masterDocId="FFD6FFA8CD3388028029FF93FFE4FFE9" masterDocTitle="Demospongiae of ANT XXIV / 2 (SYSTCO I) Expedition — Antarctic Eastern Weddell Sea" masterLastPageNumber="101" masterPageNumber="28" pageNumber="89" updateTime="1698343927236" updateUser="plazi">
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<mods:title id="D07C8F4A7A8205BDE92162480135F3BA">Demospongiae of ANT XXIV / 2 (SYSTCO I) Expedition — Antarctic Eastern Weddell Sea</mods:title>
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<mods:namePart id="AD452C0F6E77243994F0880FE5D53C14">Göcke, Christian</mods:namePart>
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<treatment id="03EF87D0CD0E883D80BEF9C2FCC8FE26" ID-DOI="http://doi.org/10.5281/zenodo.6145368" ID-GBIF-Taxon="119573208" ID-Zenodo-Dep="6145368" LSID="urn:lsid:plazi:treatment:03EF87D0CD0E883D80BEF9C2FCC8FE26" httpUri="http://treatment.plazi.org/id/03EF87D0CD0E883D80BEF9C2FCC8FE26" lastPageId="63" lastPageNumber="91" pageId="61" pageNumber="89">
<subSubSection id="C35C654DCD0E883F80BEF9C2FD45F8C4" pageId="61" pageNumber="89" type="nomenclature">
<paragraph id="8BF936C6CD0E883F80BEF9C2FD2AF983" blockId="61.[151,718,1616,1676]" box="[151,718,1616,1643]" pageId="61" pageNumber="89">
<heading id="D0B181AACD0E883F80BEF9C2FD2AF983" bold="true" box="[151,718,1616,1643]" fontSize="11" level="1" pageId="61" pageNumber="89" reason="1">
<taxonomicName id="4C464D45CD0E883F80BEF9C2FD2AF983" ID-CoL="3JCDX" authority="Topsent, 1901" authorityName="Topsent" authorityYear="1901" box="[151,718,1616,1643]" class="Demospongiae" family="Chalinidae" genus="Haliclona" kingdom="Animalia" order="Haplosclerida" pageId="61" pageNumber="89" phylum="Porifera" rank="species" species="dancoi" subGenus="Rhizoniera">
<emphasis id="B932EAD4CD0E883F80BEF9C2FD2AF983" bold="true" box="[151,718,1616,1643]" pageId="61" pageNumber="89">
<emphasis id="B932EAD4CD0E883F80BEF9C2FDEDF982" bold="true" box="[151,521,1617,1643]" italics="true" pageId="61" pageNumber="89">Haliclona (Rhizoniera) dancoi</emphasis>
(Topsent, 1901)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="8BF936C6CD0E883F80BEF9E7FEBFF965" blockId="61.[151,718,1616,1676]" box="[151,347,1652,1676]" pageId="61" pageNumber="89">
(
<figureCitation id="137D2A43CD0E883F80B6F9E7FF16F965" box="[159,242,1652,1676]" captionStart="FIGURE 23" captionStartId="62.[151,250,1338,1361]" captionTargetBox="[150,1435,187,1318]" captionTargetId="figure@62.[150,1435,187,1319]" captionTargetPageId="62" captionText="FIGURE 23. Haliclona (Rhizoniera) dancoi (Topsent, 1901), SMF 11802. A, habit alive ex situ. B, section. C E, oxea with details. Scale bars: A: 20 mm, B: 10 mm, C D: 100 µm, E: 30 µm." httpUri="https://zenodo.org/record/249042/files/figure.png" pageId="61" pageNumber="89">Fig. 23</figureCitation>
,
<tableCitation id="C6C4037DCD0E883F80D4F9E7FEB6F965" box="[253,338,1652,1676]" captionStart="TABLE 19" captionStartId="63.[151,239,508,532]" captionTargetBox="[159,1392,624,770]" captionTargetPageId="63" captionText="TABLE 19. Spicule sizes of Haliclona (Rhizoniera) dancoi (Topsent, 1901). Values in µm are given as follows: minimum mean maximum (number of spicules measured). For comparison, values from Topsent (1901) and Koltun (1964) are given." httpUri="http://table.plazi.org/id/DF39664ECD0C883D80BEFE6FFEAAFDBD" pageId="61" pageNumber="89" tableUuid="DF39664ECD0C883D80BEFE6FFEAAFDBD">Tab. 19</tableCitation>
)
</paragraph>
<paragraph id="8BF936C6CD0E883F80BEF92FFB8FF938" blockId="61.[151,1131,1723,1746]" box="[151,1131,1723,1746]" pageId="61" pageNumber="89">
<taxonomicName id="4C464D45CD0E883F80BEF92FFE15F93B" authority="Topsent, 1901" authorityName="Topsent" authorityYear="1901" box="[151,497,1724,1746]" class="Demospongiae" family="Chalinidae" genus="Haliclona" kingdom="Animalia" order="Haplosclerida" pageId="61" pageNumber="89" phylum="Porifera" rank="species" species="dancoi">
<emphasis id="B932EAD4CD0E883F80BEF92FFEA3F93B" box="[151,327,1724,1746]" italics="true" pageId="61" pageNumber="89">Haliclona dancoi</emphasis>
(Topsent, 1901)
</taxonomicName>
: Burton 1934: 6. Koltun 1964: 97, pl. 15, figs. 5, 6, 1976: 196.
</paragraph>
<paragraph id="8BF936C6CD0E883F80BEF969FEE8F8E6" blockId="61.[151,1332,1786,1869]" box="[151,268,1786,1807]" pageId="61" pageNumber="89">Synonymy:</paragraph>
<paragraph id="8BF936C6CD0E883F80BEF88BFD45F8C4" blockId="61.[151,1332,1786,1869]" box="[151,673,1816,1838]" pageId="61" pageNumber="89">
<taxonomicName id="4C464D45CD0E883F80BEF88BFE3AF8C7" authority="Topsent, 1901" authorityName="Topsent" authorityYear="1901" box="[151,478,1816,1838]" class="Demospongiae" family="Chalinidae" genus="Chalina" higherTaxonomySource="CoL" kingdom="Animalia" order="Haplosclerida" pageId="61" pageNumber="89" phylum="Porifera" rank="species" species="dancoi">
<emphasis id="B932EAD4CD0E883F80BEF88BFED0F8C7" box="[151,308,1816,1838]" italics="true" pageId="61" pageNumber="89">Chalina dancoi</emphasis>
(Topsent, 1901)
</taxonomicName>
: Burton 1929: 420.
</paragraph>
</subSubSection>
<subSubSection id="C35C654DCD0E883F80BEF8ABFAD0F8A5" box="[151,1332,1846,1869]" pageId="61" pageNumber="89" type="description">
<paragraph id="8BF936C6CD0E883F80BEF8ABFAD0F8A5" blockId="61.[151,1332,1786,1869]" box="[151,1332,1846,1869]" pageId="61" pageNumber="89">
<taxonomicName id="4C464D45CD0E883F80BEF8ABFE14F8A5" authority="Topsent, 1901: 12" authorityName="Topsent" authorityPageNumber="12" authorityYear="1901" box="[151,496,1847,1869]" class="Demospongiae" family="Chalinidae" genus="Reniera" kingdom="Animalia" order="Haplosclerida" pageId="61" pageNumber="89" phylum="Porifera" rank="species" species="dancoi">
<emphasis id="B932EAD4CD0E883F80BEF8ABFED6F8A4" box="[151,306,1847,1869]" italics="true" pageId="61" pageNumber="89">Reniera dancoi</emphasis>
Topsent, 1901: 12
</taxonomicName>
, pl. 2, fig. 1, pl. 3, fig. 3. Kirkpatrick 1908: 53, pl. 18, fig. 3. Hentschel 1914: 134.
</paragraph>
</subSubSection>
<subSubSection id="C35C654DCD0E883F80BEF8EAFDA0F85C" pageId="61" pageNumber="89" type="materials_examined">
<paragraph id="8BF936C6CD0E883F80BEF8EAFDA0F85C" blockId="61.[151,1436,1913,1973]" pageId="61" pageNumber="89">
<emphasis id="B932EAD4CD0E883F80BEF8EAFEE2F87B" bold="true" box="[151,262,1913,1938]" pageId="61" pageNumber="89">Material.</emphasis>
Several fragments of probably 2 different specimens from station 048-1 (SMF 11802, 11842),
<quantity id="4CBE9B23CD0E883F8511F8EAFA7CF878" box="[1336,1432,1913,1937]" metricMagnitude="2" metricUnit="m" metricValue="6.021" pageId="61" pageNumber="89" unit="m" value="602.1">602.1 m</quantity>
,
<geoCoordinate id="EE725001CD0E883F80BEF80EFEC5F85C" box="[151,289,1949,1973]" direction="south" orientation="latitude" pageId="61" pageNumber="89" precision="9" value="-70.399">70° 23.94' S</geoCoordinate>
,
<geoCoordinate id="EE725001CD0E883F8107F80EFE50F85C" box="[302,436,1949,1973]" direction="west" orientation="longitude" pageId="61" pageNumber="89" precision="9" value="-8.319">8° 19.14' W</geoCoordinate>
,
<date id="FFF81006CD0E883F8196F80EFDA4F85C" box="[447,576,1949,1973]" pageId="61" pageNumber="89" value="2008-12-01">12.01.2008</date>
.
</paragraph>
</subSubSection>
<caption id="DF39664ECD0D883C80BEFAA9FCDAFA86" httpUri="https://zenodo.org/record/249042/files/figure.png" pageId="62" pageNumber="90" targetBox="[150,1435,187,1318]" targetPageId="62">
<paragraph id="8BF936C6CD0D883C80BEFAA9FCDAFA86" blockId="62.[151,1436,1338,1391]" pageId="62" pageNumber="90">
<emphasis id="B932EAD4CD0D883C80BEFAA9FEC5FAB9" bold="true" box="[151,289,1338,1361]" pageId="62" pageNumber="90">FIGURE 23.</emphasis>
<taxonomicName id="4C464D45CD0D883C8100FAA9FCEAFAB8" authority="Topsent, 1901" authorityName="Topsent" authorityYear="1901" box="[297,782,1338,1361]" class="Demospongiae" family="Chalinidae" genus="Haliclona" kingdom="Animalia" order="Haplosclerida" pageId="62" pageNumber="90" phylum="Porifera" rank="species" species="dancoi" subGenus="Rhizoniera">
<emphasis id="B932EAD4CD0D883C8100FAA9FD86FAB9" box="[297,610,1338,1360]" italics="true" pageId="62" pageNumber="90">Haliclona (Rhizoniera) dancoi</emphasis>
(Topsent, 1901)
</taxonomicName>
, SMF 11802. A, habit alive ex situ. B, section. CE, oxea with details. Scale bars: A: 20 mm, B: 10 mm, CD: 100 µm, E: 30 µm.
</paragraph>
</caption>
<subSubSection id="C35C654DCD0D883C80EEFA08FE9AF8A9" pageId="62" pageNumber="90" type="description">
<paragraph id="8BF936C6CD0D883C80EEFA08FC45F98E" blockId="62.[151,1436,1435,2036]" pageId="62" pageNumber="90">
<emphasis id="B932EAD4CD0D883C80EEFA08FEBDFA5D" bold="true" box="[199,345,1435,1460]" pageId="62" pageNumber="90">Description.</emphasis>
Specimens (
<figureCitation id="137D2A43CD0D883C81C1FA0FFDDCFA5D" box="[488,568,1436,1460]" captionStart="FIGURE 23" captionStartId="62.[151,250,1338,1361]" captionTargetBox="[150,1435,187,1318]" captionTargetId="figure@62.[150,1435,187,1319]" captionTargetPageId="62" captionText="FIGURE 23. Haliclona (Rhizoniera) dancoi (Topsent, 1901), SMF 11802. A, habit alive ex situ. B, section. C E, oxea with details. Scale bars: A: 20 mm, B: 10 mm, C D: 100 µm, E: 30 µm." httpUri="https://zenodo.org/record/249042/files/figure.png" pageId="62" pageNumber="90">Fig. 23</figureCitation>
A) fragmentary. Some of whitish-beige color in ethanol (SMF 11802), others of darker, brownish color (SMF 11842), possibly representing two different specimens. Shape of living sponges unkwon. Fragments lamellar, about
<quantity id="4CBE9B23CD0D883C821AFA77FD92FA15" box="[563,630,1508,1532]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="62" pageNumber="90" unit="mm" value="5.0">5 mm</quantity>
in thickness. Surface hispid from protruding spicule tufts. In topview, triangular honeycomb structures between spicule tufts visible. Surface bearing several pores, larger ones probably oscules, about
<quantity id="4CBE9B23CD0D883C816AF9BFFE24F9AD" box="[323,448,1580,1604]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="62" pageNumber="90" unit="mm" value="3.0" valueMax="4.0" valueMin="2.0">2 to 4 mm</quantity>
in width, quite regularly arranged at distances of about
<quantity id="4CBE9B23CD0D883C847AF9BFFB05F9AD" box="[1107,1249,1580,1604]" metricMagnitude="-3" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="62" pageNumber="90" unit="mm" value="7.5" valueMax="10.0" valueMin="5.0">5 to 10 mm</quantity>
. Between these, smaller pores of about
<quantity id="4CBE9B23CD0D883C81BEF9DCFDFBF981" box="[407,543,1615,1640]" metricMagnitude="-4" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="62" pageNumber="90" unit="mm" value="0.75" valueMax="1.0" valueMin="0.5">0.5 to 1 mm</quantity>
diameter. Texture soft and fragile.
</paragraph>
<paragraph id="8BF936C6CD0D883C80EEF9E7FAA0F911" blockId="62.[151,1436,1435,2036]" pageId="62" pageNumber="90">
Skeleton: Skeleton a rather regular anisotropic reticulation (
<figureCitation id="137D2A43CD0D883C834CF9E7FC52F965" box="[869,950,1652,1676]" captionStart="FIGURE 23" captionStartId="62.[151,250,1338,1361]" captionTargetBox="[150,1435,187,1318]" captionTargetId="figure@62.[150,1435,187,1319]" captionTargetPageId="62" captionText="FIGURE 23. Haliclona (Rhizoniera) dancoi (Topsent, 1901), SMF 11802. A, habit alive ex situ. B, section. C E, oxea with details. Scale bars: A: 20 mm, B: 10 mm, C D: 100 µm, E: 30 µm." httpUri="https://zenodo.org/record/249042/files/figure.png" pageId="62" pageNumber="90">Fig. 23</figureCitation>
B). Primary tracts built of about 4 oxeas in thickness, running from the sponges base towards surface, which they penetrate, forming short spicule tufts. Primary tracts interconnected by oxea, which mainly occur single or pairwise, only rarely forming longer, more consistent tracts. Ectosomal skeleton absent. In some parts of sponge, high amounts of sand grains present.
</paragraph>
<paragraph id="8BF936C6CD0D883C80EEF897FE9AF8A9" blockId="62.[151,1436,1435,2036]" pageId="62" pageNumber="90">
Spiculation (
<tableCitation id="C6C4037DCD0D883C8170F897FE51F8F5" box="[345,437,1796,1820]" captionStart="TABLE 19" captionStartId="63.[151,239,508,532]" captionTargetBox="[159,1392,624,770]" captionTargetPageId="63" captionText="TABLE 19. Spicule sizes of Haliclona (Rhizoniera) dancoi (Topsent, 1901). Values in µm are given as follows: minimum mean maximum (number of spicules measured). For comparison, values from Topsent (1901) and Koltun (1964) are given." httpUri="http://table.plazi.org/id/DF39664ECD0C883D80BEFE6FFEAAFDBD" pageId="62" pageNumber="90" tableUuid="DF39664ECD0C883D80BEFE6FFEAAFDBD">Tab. 19</tableCitation>
): Spicules almost straight, slender oxeas (fig. 23 CE) of 610 to 820
<date id="FFF81006CD0D883C84C0F896FA80F8F5" box="[1257,1380,1796,1820]" pageId="62" pageNumber="90">x 15 to 29</date>
µm. Microscleres absent.
</paragraph>
</subSubSection>
<subSubSection id="C35C654DCD0D883D80EEF8DFFCC8FE26" lastPageId="63" lastPageNumber="91" pageId="62" pageNumber="90" type="discussion">
<paragraph id="8BF936C6CD0D883C80EEF8DFFA78F81D" blockId="62.[151,1436,1435,2036]" pageId="62" pageNumber="90">
<emphasis id="B932EAD4CD0D883C80EEF8DFFEDFF88D" bold="true" box="[199,315,1868,1892]" pageId="62" pageNumber="90">Remarks.</emphasis>
This species is characterized by rather few, weak characters. Still, the identification seems unquestionable. Topsent (1901) reported oxeas of 615630
<date id="FFF81006CD0D883C8315F8E2FC7DF861" box="[828,921,1904,1928]" pageId="62" pageNumber="90" value="1918-10-20">x 1820</date>
µm, which are in a similar range to the ones reported here. Topsent's (1901) specimens also showed similar characters in skeleton and structure of the surface. Most of his specimens, due to the sponges soft texture and fragility, were fragments, like ours. For some specimens, he reported a cylindrical growth. Those specimens are remarkably smaller than the ones we sampled.
</paragraph>
<paragraph id="8BF936C6CD0C883D80BEFF04FCC8FE26" blockId="63.[151,1436,151,463]" pageId="63" pageNumber="91">
The SYSTCO-specimens therefore might be larger adult representatives of the species, although the exact shape of these sponges, as stated above, cannot be reconstructed. The specimens of Topsent (1901) showed significantly fewer oscules than ours, which were smaller (
<quantity id="4CBE9B23CD0C883D829DFF4CFD1CFF1E" box="[692,760,223,247]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="63" pageNumber="91" unit="mm" value="1.0">1 mm</quantity>
) and not regularly distributed. Still, this might as well be caused by the small growth of his sponges. Koltun (1964) reported tubular specimens with an inner cavity, thus differing from the massive
<typeStatus id="54FD8864CD0C883D81E0FEBBFDE0FEA9" box="[457,516,296,320]" pageId="63" pageNumber="91">types</typeStatus>
of Topsent (1901). Those hollow sponges therefore show some distinct similarity to our fragmentary specimens. Koltun (1964) did not give the sizes of his sponges, but like our new ones, might have been larger adult counterparts of the small, probably juvenile specimens of Topsent (1901). Interestingly, Koltuns (1964) specimens had oxeas with a minimum size of 343 µm, therefore being much smaller than the usual ones and especially the larger oxeas of our new specimens.
</paragraph>
</subSubSection>
</treatment>
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