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<document id="DA808185C59A184E7E326384A82BB450" ID-DOI="10.5281/zenodo.5757715" ID-ISSN="1638-9387" ID-Zenodo-Dep="5757715" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630330648782" checkinUser="marcus" docAuthor="Calcinai, Barbara &amp; Pansini, Maurizio" docDate="2000" docId="03D2A011FFE4FFD9A98F68655068FA04" docLanguage="en" docName="Zoosystema.2000.22.2.369-381.pdf" docOrigin="Zoosystema 22 (2)" docStyle="DocumentStyle:2A9C6F9EA5F90D98170D9E0D9CA29375.4:Zoosystema.2000-2008.journal_article.type1" docStyleId="2A9C6F9EA5F90D98170D9E0D9CA29375" docStyleName="Zoosystema.2000-2008.journal_article.type1" docStyleVersion="4" docTitle="Ectyodoryx minuta Calcinai &amp; Pansini 2000, n. sp." docType="treatment" docVersion="3" lastPageNumber="376" masterDocId="FFEBD869FFE2FFDEA97B6C195229FFF3" masterDocTitle="Four new demosponge species from Terra Nova Bay (Ross Sea, Antarctica)" masterLastPageNumber="381" masterPageNumber="369" pageNumber="375" updateTime="1699230332674" updateUser="plazi" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0" zenodo-license-treatments="UNSPECIFIED">
<mods:mods id="2C1E5446FBB49EB2B737A8B653596C87" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="91ED754C19FB518D755C85DBC799FFA5">
<mods:title id="891EC23CB1AEC8189D43438E3D50B2D5">Four new demosponge species from Terra Nova Bay (Ross Sea, Antarctica)</mods:title>
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<mods:name id="268E622A448B2536519E47C7C31AA461" type="personal">
<mods:role id="E1E3ACB81A109A06079247DAF1EE9451">
<mods:roleTerm id="A2BFA03C7FF1C6C3EB25B27B81891068">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="726CA444F0F627DC5C504AC75B8EE600">Calcinai, Barbara</mods:namePart>
</mods:name>
<mods:name id="42E2E719F5E7D06AFF905291680DC39A" type="personal">
<mods:role id="D21A1E09B44DEE7997236F643267A325">
<mods:roleTerm id="CEE8D1AF0720F8C49C50AAEFB1B8ED47">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="0AF4A874ADB3F0CB5A578CEDF4484534">Pansini, Maurizio</mods:namePart>
<mods:affiliation id="B38252F6956DD77D1EEE51A729A493DB">DIP. TE. RIS. Dipartimento per lo Studio del Territorio e delle sue Risorse, Università di Genova, Corso Europa 26, I- 16032 Genova (Italy)</mods:affiliation>
</mods:name>
<mods:typeOfResource id="410BD73083254DCBEE76AD9E8B5F3874">text</mods:typeOfResource>
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<mods:title id="0DB217830AFDE8823F263EA037504258">Zoosystema</mods:title>
</mods:titleInfo>
<mods:part id="5CAD3DBD434F5E1EB50B2D8D3966EE90">
<mods:date id="863242ACAAAA0E913114A67E15E36277">2000</mods:date>
<mods:detail id="E4FF8D8FF08EE9F2117DB1FB259B57C0" type="volume">
<mods:number id="5CFCA378EC6D94795B4AD05EEA4016A9">22</mods:number>
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<mods:detail id="7FE0DCF6DF97CFA1A6BA3DAAB832E0FA" type="issue">
<mods:number id="49E9165CB5662635F3DCF2FFE5BDCEFA">2</mods:number>
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<mods:start id="3133255E505BBEB38636518BB3592ED3">369</mods:start>
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<mods:classification id="D6253E9183BFE12528A4EB105F78C811">journal article</mods:classification>
<mods:identifier id="AB11100AF9C74506A49CA19E75891855" type="DOI">10.5281/zenodo.5757715</mods:identifier>
<mods:identifier id="D56EC36871FB09434FAF3C0FEA26084F" type="ISSN">1638-9387</mods:identifier>
<mods:identifier id="BBAFDCA9D16896350FC6E4DB30D38F53" type="Zenodo-Dep">5757715</mods:identifier>
</mods:mods>
<treatment id="03D2A011FFE4FFD9A98F68655068FA04" LSID="urn:lsid:plazi:treatment:03D2A011FFE4FFD9A98F68655068FA04" httpUri="http://treatment.plazi.org/id/03D2A011FFE4FFD9A98F68655068FA04" lastPageId="7" lastPageNumber="376" pageId="6" pageNumber="375">
<subSubSection id="C361428CFFE4FFD8A98F6865502DFB66" box="[244,516,1147,1174]" pageId="6" pageNumber="375" type="nomenclature">
<paragraph id="8BC41107FFE4FFD8A98F6865502DFB66" blockId="6.[244,516,1147,1205]" box="[244,516,1147,1174]" pageId="6" pageNumber="375">
<heading id="D08CA66BFFE4FFD8A98F6865502DFB66" box="[244,516,1147,1174]" centered="true" fontSize="11" level="2" pageId="6" pageNumber="375" reason="2">
<taxonomicName id="4C7B6A84FFE4FFD8A98F686553EBFB66" ID-CoL="853HV" authority="Calcinai &amp; Pansini, 2000" authorityName="Calcinai &amp; Pansini" authorityYear="2000" box="[244,450,1147,1174]" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="6" pageNumber="375" phylum="Porifera" rank="species" species="minuta" status="sp. nov.">
<emphasis id="B90FCD15FFE4FFD8A98F686553EBFB66" bold="true" box="[244,450,1147,1174]" italics="true" pageId="6" pageNumber="375">Ectyodoryx minuta</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23C706EFFE4FFD8A8B26862502DFB66" box="[457,516,1147,1173]" pageId="6" pageNumber="375" rank="species">n. sp.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C361428CFFE4FFD8A83E6882539AFB46" box="[325,435,1179,1205]" pageId="6" pageNumber="375" type="description">
<paragraph id="8BC41107FFE4FFD8A83E6882539AFB46" blockId="6.[244,516,1147,1205]" box="[325,435,1179,1205]" pageId="6" pageNumber="375">
(
<figureCitation id="13400D82FFE4FFD8A837688253B9FB46" box="[332,400,1179,1205]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Figs 4</figureCitation>
;
<figureCitation id="13400D82FFE4FFD8A8E768825383FB46" box="[412,426,1179,1205]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="6" pageNumber="375">5</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C361428CFFE4FFD8A90968D7530CFAE9" pageId="6" pageNumber="375" type="materials_examined">
<paragraph id="8BC41107FFE4FFD8A90968D7530CFAE9" blockId="6.[114,647,1230,1463]" pageId="6" pageNumber="375">
<materialsCitation id="3B131B5AFFE4FFD8A90968D7530CFAE9" collectingDate="1990-01-12" collectionCode="MNA, MSNG" elevation="197" pageId="6" pageNumber="375" specimenCode="MM31" specimenCount="2" typeStatus="holotype">
MATERIAL EXAMINED. —
<typeStatus id="54C0AFA5FFE4FFD8A80068D653C9FB14" box="[379,480,1231,1255]" pageId="6" pageNumber="375" type="holotype">Holotype</typeStatus>
: POR23 (
<collectionCode id="ED6A89C2FFE4FFD8AB3268D650AEFB14" box="[585,647,1231,1255]" country="Italy" httpUri="http://grbio.org/cool/e1gk-b74h" name="The Museo Nazionale dell'Antartide (Italian National Antarctic Museum in Genoa)." pageId="6" pageNumber="375">MNA</collectionCode>
No 2);
<typeStatus id="54C0AFA5FFE4FFD8A9C768F1533AFAF3" box="[188,275,1256,1280]" pageId="6" pageNumber="375" type="paratype">paratype</typeStatus>
: stn
<specimenCode id="DBDDB97CFFE4FFD8A83968F053A2FAF2" box="[322,395,1257,1281]" collectionCode="MM" country="France" name="University of Montpellier" pageId="6" pageNumber="375">MM31</specimenCode>
,
<date id="FFC537C7FFE4FFD8A8EC68F053D3FAF2" box="[407,506,1257,1281]" pageId="6" pageNumber="375" value="1990-01-12">
<collectingDate id="EF81CE2FFFE4FFD8A8EC68F053D3FAF2" box="[407,506,1257,1281]" pageId="6" pageNumber="375" value="1990-01-12">12.I.1990</collectingDate>
</date>
, rock,
<quantity id="4C83BCE2FFE4FFD8AB4468F050ABFB0C" box="[575,642,1256,1281]" metricMagnitude="2" metricUnit="m" metricValue="1.97" pageId="6" pageNumber="375" unit="m" value="197.0">
<elevation id="0056F634FFE4FFD8AB4468F050ABFB0C" box="[575,642,1256,1281]" metricMagnitude="2" metricUnit="m" metricValue="1.97" pageId="6" pageNumber="375" unit="m" value="197.0">197 m</elevation>
</quantity>
, POR23 (
<collectionCode id="ED6A89C2FFE4FFD8A9B0691B5333FAE9" box="[203,282,1282,1306]" country="Italy" httpUri="http://grbio.org/cool/1trn-7b59" name="Museo Civico di Storia Naturale di Genova 'Giacomo Doria'" pageId="6" pageNumber="375">MSNG</collectionCode>
).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C361428CFFE4FFD8A9096933530BFA80" pageId="6" pageNumber="375" type="etymology">
<paragraph id="8BC41107FFE4FFD8A9096933530BFA80" blockId="6.[114,647,1230,1463]" pageId="6" pageNumber="375">ETYMOLOGY. — The small size of the megascleres compared with congeneric Antarctic species suggested the specific name.</paragraph>
</subSubSection>
<subSubSection id="C361428CFFE4FFD8A909699C52C0FA44" pageId="6" pageNumber="375" type="materials_examined">
<paragraph id="8BC41107FFE4FFD8A909699C52C0FA44" blockId="6.[114,647,1230,1463]" pageId="6" pageNumber="375">
<collectionCode id="ED6A89C2FFE4FFD8A909699C533EFA68" box="[114,279,1413,1436]" pageId="6" pageNumber="375">
<typeStatus id="54C0AFA5FFE4FFD8A909699C5281FA69" box="[114,168,1413,1436]" pageId="6" pageNumber="375">TYPE</typeStatus>
LOCALITY
</collectionCode>
. — Terra Nova Bay,
<geoCoordinate id="EE4F77C0FFE4FFD8AB6A699F50ABFA6D" box="[529,642,1414,1438]" degrees="74" direction="south" minutes="42.2" orientation="latitude" pageId="6" pageNumber="375" precision="92" value="-74.70333">74°42.2’S</geoCoordinate>
,
<geoCoordinate id="EE4F77C0FFE4FFD8A909698652CCFA44" box="[114,229,1439,1463]" degrees="164" direction="east" minutes="10.9" orientation="longitude" pageId="6" pageNumber="375" precision="92" value="164.18167">164°10.9’E</geoCoordinate>
.
</paragraph>
</subSubSection>
<subSubSection id="C361428CFFE4FFD9A90969ED5045FD67" lastPageId="7" lastPageNumber="376" pageId="6" pageNumber="375" type="description">
<paragraph id="8BC41107FFE4FFD8A90969ED532BF9FF" blockId="6.[114,646,1524,1704]" box="[114,258,1524,1550]" pageId="6" pageNumber="375">DESCRIPTION</paragraph>
<paragraph id="8BC41107FFE4FFD8A9096A0A5150FCBE" blockId="6.[114,646,1524,1704]" lastBlockId="6.[677,1210,758,845]" pageId="6" pageNumber="375">
The only specimen collected is
<quantity id="4C83BCE2FFE4FFD8A8A86A0A5008F9DF" box="[467,545,1554,1581]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="6" pageNumber="375" unit="cm" value="3.5">3.5 cm</quantity>
by
<quantity id="4C83BCE2FFE4FFD8AB356A0A50AFF9DF" box="[590,646,1554,1581]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="6" pageNumber="375" unit="cm" value="2.0">2 cm</quantity>
and overgrowing serpulid tubes (
<figureCitation id="13400D82FFE4FFD8A8926A2B506DF9BF" box="[489,580,1586,1612]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Fig. 4A</figureCitation>
). The overall appearance of the sponge is bushy amorphous but, on a closer examination, the surface pattern is drawn by the rounded extremities of the branches (
<figureCitation id="13400D82FFE4FFD8AA336EEF518AFCE3" box="[840,931,758,784]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Fig. 4B</figureCitation>
). The alcohol-preserved specimen is very fragile and the
<typeStatus id="54C0AFA5FFE4FFD8AD706F0C5643FCDC" box="[1035,1130,789,815]" pageId="6" pageNumber="375" type="holotype">holotype</typeStatus>
is broken into fragments.
</paragraph>
<paragraph id="8BC41107FFE4FFD8ABDE6F6850D3FC78" blockId="6.[677,1210,881,1336]" box="[677,762,881,907]" pageId="6" pageNumber="375">
<emphasis id="B90FCD15FFE4FFD8ABDE6F6850D3FC78" box="[677,762,881,907]" italics="true" pageId="6" pageNumber="375">Skeleton</emphasis>
</paragraph>
<paragraph id="8BC41107FFE4FFD8ABDE6F9751C4FAC4" blockId="6.[677,1210,881,1336]" pageId="6" pageNumber="375">
Most of the ectosome has been torn off probably during sampling by the dredge, but in a few positions a thin (50-150 µm) but dense layer of microscleres and paratangential anisotornotes is still detectable; the megascleres never form brushes (
<figureCitation id="13400D82FFE4FFD8ABD66830512FFBB0" box="[685,774,1065,1091]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Fig. 4C</figureCitation>
). Choanosomal acanthostyles protrude through this layer rendering the sponge surface bristly. The choanosomal skeleton consists of indistinctly square-meshed reticulation and tracts formed by single or few (2-5) almost smooth acanthostyles (
<figureCitation id="13400D82FFE4FFD8AA3A68DB51B1FB2F" box="[833,920,1218,1244]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Fig. 4D</figureCitation>
). These tracts are sparingly echinated by smaller more spiny acanthostyles. Abundant microscleres are included into the reticulation. Spongin is scarce.
</paragraph>
<paragraph id="8BC41107FFE4FFD8ABDE694250DCFA86" blockId="6.[677,1210,1371,1704]" box="[677,757,1371,1397]" pageId="6" pageNumber="375">
<emphasis id="B90FCD15FFE4FFD8ABDE694250DCFA86" box="[677,757,1371,1397]" italics="true" pageId="6" pageNumber="375">Spicules</emphasis>
</paragraph>
<paragraph id="8BC41107FFE4FFD8ABDE696051CFF9FD" blockId="6.[677,1210,1371,1704]" pageId="6" pageNumber="375">
Large acanthostyles, gently curved, with roundish, weakly pronounced head (
<figureCitation id="13400D82FFE4FFD8AD456980569CFA41" box="[1086,1205,1432,1459]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Figs 4G, J</figureCitation>
;
<figureCitation id="13400D82FFE4FFD8ABDE69AE50E1FA22" box="[677,712,1463,1489]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="6" pageNumber="375">5A</figureCitation>
). Spines are small, few and scattered, generally concentrated over the head. They measure 219- 260 (238.5) × 7-10 (8.6) µm.
</paragraph>
<paragraph id="8BC41107FFE4FFD9ABDE6A0A5074FEF4" blockId="6.[677,1210,1371,1704]" lastBlockId="7.[113,647,205,661]" lastPageId="7" lastPageNumber="376" pageId="6" pageNumber="375">
Small, echinating acanthostyles, straight or gently curved, more fusiform than the larger acanthostyles and with spines uniformly distributed over the head and shaft (
<figureCitation id="13400D82FFE4FFD8AAD56A76562AF97A" box="[942,1027,1647,1673]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="6" pageNumber="375">Figs 4E</figureCitation>
;
<figureCitation id="13400D82FFE4FFD8AD746A765618F97A" box="[1039,1073,1647,1673]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="6" pageNumber="375">5B</figureCitation>
). They measure 102-132 (115) × 5-10 (7) µm. The size of the two categories of acanthostyles is overlapping, but they may be distinguished by their shape.
</paragraph>
<paragraph id="8BC41107FFE5FFD9A90A6D1252F7FE6C" blockId="7.[113,647,205,661]" pageId="7" pageNumber="376">
Anisotornotes, slender and straight, having one slightly swollen extremity and the other one tapering into a point (
<figureCitation id="13400D82FFE5FFD9A8266D5053E8FE91" box="[349,449,328,355]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="7" pageNumber="376">Figs 4F, I</figureCitation>
;
<figureCitation id="13400D82FFE5FFD9A8B66D5053DBFE90" box="[461,498,329,355]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="7" pageNumber="376">5C</figureCitation>
). They have a stylote appearance and measure 183-199 (188) × 2.6-5 µm.
</paragraph>
<paragraph id="8BC41107FFE5FFD9A90A6DBD5018FDA4" blockId="7.[113,647,205,661]" pageId="7" pageNumber="376">
Two categories of arcuate isochelae: slender and rather straight 14-18 (15.7) × 1-1.3 µm (
<figureCitation id="13400D82FFE5FFD9AB536DDA5053FE2E" box="[552,634,451,477]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="7" pageNumber="376">Fig. 5E</figureCitation>
); and thick and more arcuate 20-30 (25) × 2.5- 4 µm (
<figureCitation id="13400D82FFE5FFD9A9C46E185332FDE8" box="[191,283,513,539]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="7" pageNumber="376">Fig. 5D</figureCitation>
). The shape of the two forms is similar under the optical microscope but very different when viewed by SEM (
<figureCitation id="13400D82FFE5FFD9A8CA6E27500DFDA4" box="[433,548,573,600]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="7" pageNumber="376">Fig. 4K, L</figureCitation>
).
</paragraph>
<paragraph id="8BC41107FFE5FFD9A90A6E445045FD67" blockId="7.[113,647,205,661]" pageId="7" pageNumber="376">
Sigmas: “C” – and “S” – shaped, thin and very abundant (
<figureCitation id="13400D82FFE5FFD9A99C6E625368FD66" box="[231,321,635,661]" captionStart="FIG" captionStartId="5.[113,124,1184,1201]" captionTargetBox="[159,1164,212,1166]" captionTargetId="figure-322@5.[144,1179,199,1179]" captionTargetPageId="5" captionText="FIG. 4. — Ectyodoryx minuta n. sp.; A, holotype; B, detail of the sponge surface; C, ectosome; D, choanosomal skeleton; E, head of an echinating acanthostyle; F, I, extremities of anisotornotes; G, J, acanthostyles forming the choanosomal reticulation; H, group of sigmas; K, slender isochela; L, thick and arcuate isochela. Scale bars: A, 1 cm; B, 3 mm; C, 600 µm; D, 160 µm; E, H, K, L, 10 µm; F, I, 5 µm; G, 100 µm; J, 40 µm." figureDoi="http://doi.org/10.5281/zenodo.5757725" httpUri="https://zenodo.org/record/5757725/files/figure.png" pageId="7" pageNumber="376">Figs 4H</figureCitation>
;
<figureCitation id="13400D82FFE5FFD9A8366E625344FD66" box="[333,365,635,661]" captionStart="FIG" captionStartId="6.[114,125,675,692]" captionText="FIG. 5. — Ectyodoryx minuta n. sp.; A, large acanthostyle; B, small, echinating acanthostyles; C, anisotornota with a slightly swollen end; D, arcuate and thick isochelae; E, slender isochelae; F, sigmas. Scale bar: 100 µm." pageId="7" pageNumber="376">5F</figureCitation>
); 20-56 (27) × 1-2 µm.
</paragraph>
</subSubSection>
<subSubSection id="C361428CFFE5FFD9A90A6EA15068FA04" pageId="7" pageNumber="376" type="discussion">
<paragraph id="8BC41107FFE5FFD9A90A6EA152FCFD23" blockId="7.[113,647,696,1459]" box="[113,213,696,722]" pageId="7" pageNumber="376">REMARKS</paragraph>
<paragraph id="8BC41107FFE5FFD9A90A6ECE5310FA40" blockId="7.[113,647,696,1459]" pageId="7" pageNumber="376">
The new species is assigned to the genus
<taxonomicName id="4C7B6A84FFE5FFD9AB626ECE5313FCE3" authority="Lundbeck, 1909" authorityName="Lundbeck" authorityYear="1909" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="genus">
<emphasis id="B90FCD15FFE5FFD9AB626ECE50AEFD02" box="[537,647,727,753]" italics="true" pageId="7" pageNumber="376">Ectyodoryx</emphasis>
Lundbeck, 1909
</taxonomicName>
because of its reticulated choanosome, ectosome with anisotornotes(though not forming brushes),absence of acanthostyles,and presence of arcuate isochelae and sigmas as microscleres (see Bergquist &amp; Fromont 1988). Three other species,
<taxonomicName id="4C7B6A84FFE5FFD9A8FD6F965312FC3B" authority="(Hentschel, 1914)" baseAuthorityName="Hentschel" baseAuthorityYear="1914" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="antarctica">
<emphasis id="B90FCD15FFE5FFD9A8FD6F9650AFFC5B" box="[390,646,911,937]" italics="true" pageId="7" pageNumber="376">Ectyodoryx antarctica</emphasis>
(Hentschel, 1914)
</taxonomicName>
,
<taxonomicName id="4C7B6A84FFE5FFD9A8306FB4529BFC14" authority="(Ridley &amp; Dendy, 1886)" baseAuthorityName="Ridley &amp; Dendy" baseAuthorityYear="1886" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="nobilis">
<emphasis id="B90FCD15FFE5FFD9A8306FB45398FC3B" box="[331,433,941,968]" italics="true" pageId="7" pageNumber="376">E. nobilis</emphasis>
(Ridley &amp; Dendy, 1886)
</taxonomicName>
and
<taxonomicName id="4C7B6A84FFE5FFD9A9906FD55018FC14" authority="(Topsent, 1916)" baseAuthorityName="Topsent" baseAuthorityYear="1916" box="[235,561,972,999]" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="ramilobosa">
<emphasis id="B90FCD15FFE5FFD9A9906FD55351FC14" box="[235,376,972,999]" italics="true" pageId="7" pageNumber="376">E. ramilobosa</emphasis>
(Topsent, 1916)
</taxonomicName>
, belong to the fauna of Terra Nova Bay (Pansini
<emphasis id="B90FCD15FFE5FFD9AB706FF25012FBF6" box="[523,571,1003,1029]" italics="true" pageId="7" pageNumber="376">et al.</emphasis>
1994). Two more species are recorded from the Antarctic,
<taxonomicName id="4C7B6A84FFE5FFD9A90A683153E0FBB0" authority="Hentschel, 1914" authorityName="Hentschel" authorityYear="1914" box="[113,457,1064,1091]" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="anacantha">
<emphasis id="B90FCD15FFE5FFD9A90A68315328FBB0" box="[113,257,1064,1091]" italics="true" pageId="7" pageNumber="376">E. anacantha</emphasis>
Hentschel, 1914
</taxonomicName>
and
<taxonomicName id="4C7B6A84FFE5FFD9AB766831530CFB92" authority="Hentschel, 1914" authorityName="Hentschel" authorityYear="1914" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="plumosa">
<emphasis id="B90FCD15FFE5FFD9AB76683150AFFBB0" box="[525,646,1064,1091]" italics="true" pageId="7" pageNumber="376">E. plumosa</emphasis>
Hentschel, 1914
</taxonomicName>
, although Koltun (1976) considers them very close.Both differ from the new species by the external morphology and by the shape and size of the spicules.
<taxonomicName id="4C7B6A84FFE5FFD9A84568BA5280FB2F" authority="BrOndsted, 1924" authorityName="BrOndsted" authorityYear="1924" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="crelloides">
<emphasis id="B90FCD15FFE5FFD9A84568BA5022FB4E" box="[318,523,1187,1213]" italics="true" pageId="7" pageNumber="376">Ectyodoryx crelloides</emphasis>
BrØndsted, 1924
</taxonomicName>
from
<collectingCountry id="F36C5197FFE5FFD9A99768D85355FB2F" box="[236,380,1217,1244]" name="New Zealand" pageId="7" pageNumber="376">New Zealand</collectingCountry>
has the branching habit, reduced choanosomal echination, and the small spicule size of
<taxonomicName id="4C7B6A84FFE5FFD9A87968E65340FAEB" authority="Calcinai &amp; Pansini, 2000" authorityName="Calcinai &amp; Pansini" authorityYear="2000" box="[258,361,1279,1304]" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="minuta" status="sp. nov.">
<emphasis id="B90FCD15FFE5FFD9A87968E65340FAEB" box="[258,361,1279,1304]" italics="true" pageId="7" pageNumber="376">E. minuta</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23C706EFFE5FFD9A81668E7538CFAEB" box="[365,421,1278,1304]" pageId="7" pageNumber="376" rank="species">n.sp.</taxonomicNameLabel>
, but the spicule shape is completely different.
<taxonomicName id="4C7B6A84FFE5FFD9A81669075007FAC5" authority="Calcinai &amp; Pansini, 2000" authorityName="Calcinai &amp; Pansini" authorityYear="2000" box="[365,558,1309,1336]" class="Demospongiae" family="Coelosphaeridae" genus="Ectyodoryx" kingdom="Animalia" order="Poecilosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="species" species="minuta" status="sp. nov.">
<emphasis id="B90FCD15FFE5FFD9A81669075007FAC5" box="[365,558,1309,1336]" italics="true" pageId="7" pageNumber="376">Ectyodoryx minuta</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23C706EFFE5FFD9AB4E69045059FAC4" box="[565,624,1309,1335]" pageId="7" pageNumber="376" rank="species">n. sp.</taxonomicNameLabel>
is distinguished from all other species of the genus by the small size of the megascleres, the peculiar shape of the anisotornotes, and the presence of two categories of isochelae.
</paragraph>
<paragraph id="8BC41107FFE5FFD9A9CC69C45068FA04" blockId="7.[113,647,1500,1703]" box="[183,577,1500,1527]" pageId="7" pageNumber="376">
Family
<taxonomicName id="4C7B6A84FFE5FFD9A87C69C55068FA04" authority="Van Soest, 1980" authorityName="Van Soest" authorityYear="1980" box="[263,577,1500,1527]" class="Demospongiae" family="Niphatidae" kingdom="Animalia" order="Haplosclerida" pageId="7" pageNumber="376" phylum="Porifera" rank="family">NIPHATIDAE Van Soest, 1980</taxonomicName>
</paragraph>
</subSubSection>
</treatment>
</document>
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