Add updates up until 2024-12-01 10:15:09

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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">, 3</figureCitation>
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<collectingDate value="2016-12-18">18 Dec. 2016</collectingDate>
<collectingDate id="9121C2046054CE92460A45F69A69699A" value="2016-12-18">18 Dec. 2016</collectingDate>
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<materialsCitation collectingDate="1959-07-11" collectorName="Mu Chen." elevation="51" latitude="122.75" location="Sta." longLatPrecision="1051" longitude="38.15" specimenCount="1" typeStatus="paratype">
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MBM023255: nYS,
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, coll.
<collectorName>Mu Chen.</collectorName>
<collectingDate value="1959-07-11">11 Jul. 1959</collectingDate>
<collectorName id="A81048971E8B48A51F1DF2DFE2E972D5">Mu Chen.</collectorName>
<collectingDate id="1DD516B2965A38E1C6CB9E77CF5564E0" value="1959-07-11">11 Jul. 1959</collectingDate>
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.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Additional material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<materialsCitation collectingDate="1959-04-15" collectorName="Mu Chen." elevation="63" latitude="38.5" location="Sta." longLatPrecision="1175" longitude="123.5" specimenCount="1">
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<paragraph id="78E95C00CF89EF26932A23CB94219D3D" pageId="0" pageNumber="1">Additional material.</paragraph>
<paragraph id="B8EEDEF11EFA732A332827F596A3714D" pageId="0" pageNumber="1">
<materialsCitation id="EBFA23EA3198E88F8DB2CDD0763CAE91" collectingDate="1959-04-15" collectorName="Mu Chen." elevation="63" latitude="38.5" location="Sta." longLatPrecision="1175" longitude="123.5" specimenCount="1">
MBM023221: nYS,
<location LSID="urn:lsid:plazi:treatment:A2E7DB986B785109BE12E30E45C24BEC:06059770AB2525235C10EDA99668377E" latitude="38.5" longLatPrecision="1175" longitude="123.5" name="Sta.">Sta.</location>
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2056,
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<quantity id="D697AE383A55306F345BA83B07DC580F" metricMagnitude="1" metricUnit="m" metricValue="6.3" unit="m" value="63.0">
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,
<collectorName>Mu Chen.</collectorName>
<collectingDate value="1959-04-15">15 Apr. 1959</collectingDate>
<collectorName id="9A92BEEAFA78BEEF1868017CDFD517AE">Mu Chen.</collectorName>
<collectingDate id="385A3BB53877D2F10409BCC8B71E7CF7" value="1959-04-15">15 Apr. 1959</collectingDate>
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.
<materialsCitation collectingDate="1958-10-01" collectorName="Yuheng Cui." latitude="38.0" location="Sta." longLatPrecision="1178" longitude="123.5" specimenCount="1">
<materialsCitation id="C395B80037659DA8E5B9830D0D86EAEE" collectingDate="1958-10-01" collectorName="Yuheng Cui." latitude="38.0" location="Sta." longLatPrecision="1178" longitude="123.5" specimenCount="1">
MBM009975: nYS,
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2057,
<geoCoordinate degrees="38" direction="north" minutes="00" orientation="latitude" precision="925" value="38.0">38°00'N</geoCoordinate>
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, 70.5 m, coll.
<collectorName>Yuheng Cui.</collectorName>
<collectingDate value="1958-10-01">1 Oct. 1958</collectingDate>
<collectorName id="528CC811C0CFCBA8DD1D81B406C75D70">Yuheng Cui.</collectorName>
<collectingDate id="C5E27B82242D5C067B0C84D5F1687B5C" value="1958-10-01">1 Oct. 1958</collectingDate>
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<materialsCitation collectingDate="2016-12-18" elevation="35" latitude="39.0" location="Sta." longLatPrecision="1172" longitude="122.583336" specimenCount="1">
<materialsCitation id="171C4B297476C1B04E26AC97C7D7675E" collectingDate="2016-12-18" elevation="35" latitude="39.0" location="Sta." longLatPrecision="1172" longitude="122.583336" specimenCount="1">
YCTU000004: nYS,
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A3,
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<collectingDate value="2016-12-18">18 Dec. 2016</collectingDate>
<collectingDate id="4A1B7E2EC7EB143FCEE94738726E96C4" value="2016-12-18">18 Dec. 2016</collectingDate>
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<materialsCitation collectingDate="2016-12-18" elevation="37" latitude="39.266666" location="Sta." longLatPrecision="1170" longitude="123.3" specimenCount="1">
<materialsCitation id="08E7104EA93B5656809C87FE8AEFB808" collectingDate="2016-12-18" elevation="37" latitude="39.266666" location="Sta." longLatPrecision="1170" longitude="123.3" specimenCount="1">
YCTU000005: nYS,
<location LSID="urn:lsid:plazi:treatment:A2E7DB986B785109BE12E30E45C24BEC:070F1DB1B6808E1383C4BB1166A39D16" latitude="39.266666" longLatPrecision="1170" longitude="123.3" name="Sta.">Sta.</location>
<location id="070F1DB1B6808E1383C4BB1166A39D16" LSID="urn:lsid:plazi:treatment:A2E7DB986B785109BE12E30E45C24BEC:070F1DB1B6808E1383C4BB1166A39D16" latitude="39.266666" longLatPrecision="1170" longitude="123.3" name="Sta.">Sta.</location>
48,
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<geoCoordinate id="B42B8059F7D199EC4B0E955959F1F00E" degrees="39" direction="north" minutes="16" orientation="latitude" precision="925" value="39.266666">39°16'N</geoCoordinate>
,
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<quantity metricMagnitude="1" metricUnit="m" metricValue="3.7" unit="m" value="37.0">
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<elevation id="7046FD533932EF4053032B950C56BB7F" metricMagnitude="1" metricUnit="m" metricValue="3.7" unit="m" value="37.0">37 m</elevation>
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,
<collectingDate value="2016-12-18">18 Dec. 2016</collectingDate>
<collectingDate id="60B0A82B1F667F095E02466A440EEF00" value="2016-12-18">18 Dec. 2016</collectingDate>
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.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">All specimens incomplete, posterior end missing, holotype with 60 chaetigers, 34 mm long and 5 mm wide. Body elongate, about same width throughout; thorax depressed, abdomen cylindrical.</paragraph>
<paragraph pageId="0" pageNumber="1">
<subSubSection id="B7A7DA5F1A4CFF37F4070B2E2CDEB0EB" pageId="0" pageNumber="1" type="description">
<paragraph id="9E43A9C16028A7C0E76362695AB07D75" pageId="0" pageNumber="1">Description.</paragraph>
<paragraph id="2F79E28F5605C85EE8685B224213B2D1" pageId="0" pageNumber="1">All specimens incomplete, posterior end missing, holotype with 60 chaetigers, 34 mm long and 5 mm wide. Body elongate, about same width throughout; thorax depressed, abdomen cylindrical.</paragraph>
<paragraph id="E5CC74F836B2546A7277457803936899" pageId="0" pageNumber="1">
Prostomium short, conical, tapering to rounded tip; eyepots absent, nuchal organs narrow groove at junction with peristomium (Fig.
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<figureCitation id="3C0ECB3A7066CEB240FCCFC5DF6A4F76" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Anterior end of Phylo heterochaetus sp. nov. Scale bar: 2 mm." figureDoi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1">1</figureCitation>
). Peristomium a narrow asetigerous segment, distinctly separated from prostomium and chaetiger 1; mouth with anterior oral lip arising from posterior margin of peristomium, posterior oral lip from anterior margin of chaetiger 2. Holotype with proboscis everted, consisting of two large, inflated lobes (Fig.
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).
</paragraph>
<caption doi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
<caption id="471E59A4B77E78837AE5849A52D4C514" doi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
<paragraph id="E0C2209EF602C91E6F31439C8E6715B5" pageId="0" pageNumber="1">
<emphasis id="A00BB7638F427755914FE808DF5782A9" bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
Anterior end of
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<emphasis italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
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<emphasis id="FB76155825F162C8BA560B809DD56535" italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
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sp. nov. Scale bar: 2 mm.
</paragraph>
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<paragraph id="BC4A5948BCFAB0C8D259944DF425916F" pageId="0" pageNumber="1">
Holotype with 21 thoracic chaetigers, divided into anterior and posterior sections: anterior thorax with 13 chaetigers (Figs
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<figureCitation id="F20AC67A5E326A2D5C3CE1E0326878CA" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Anterior end of Phylo heterochaetus sp. nov. Scale bar: 2 mm." figureDoi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1">1</figureCitation>
,
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
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), posterior thorax with modified spines beginning on chaetiger 14 continuing over 8 chaetigers. Intersegmental annulations first present from chaetiger 1, well developed (Figs
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<figureCitation id="BE25256746A40A3047DE2CD9AC064359" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Anterior end of Phylo heterochaetus sp. nov. Scale bar: 2 mm." figureDoi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1">1</figureCitation>
,
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
<figureCitation id="4F3C73BF3F442E1F14EDE590F739633B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
). Thoracic notopodial postchaetal lobe arising from narrow base, broadly triangular, narrowing apically (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2B</figureCitation>
<figureCitation id="175A20571894FB58C4D84A4A4EF2FD2E" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2B</figureCitation>
), becoming long and narrow in abdominal chaetigers (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
<figureCitation id="F864CEF6F5E8D2D0AC34416EE64EC911" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
). Thoracic neuropodia thick, elongate, fringed, bearing rows of uncini and several capillaries. First chaetiger with 2 rounded postchaetal lobe, increasing to 13-14 on middle thoracic chaetigers (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
<figureCitation id="69EF64DF160D7B094886A4D7B9C4923F" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
), then decreasing to 6 or 7 on last thoracic chaetigers. Subpodial lobes or stomach papillae from chaetiger 12, numbering 1 at first, then extending to ventral midline on chaetigers 18-25, then abruptly absent (Figs
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Anterior end of Phylo heterochaetus sp. nov. Scale bar: 2 mm." figureDoi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1">1</figureCitation>
<figureCitation id="AAFBDD96699A4E8B26D67A707C274921" captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Anterior end of Phylo heterochaetus sp. nov. Scale bar: 2 mm." figureDoi="10.3897/zookeys.1068.71925.figure1" httpUri="https://binary.pensoft.net/fig/605877" pageId="0" pageNumber="1">1</figureCitation>
,
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
<figureCitation id="B426975D6D6F21278894E343B3078F99" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2A</figureCitation>
). Abdominal neuropodia bilobed, with inner lobe blunt, outer lobe cirriform (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
<figureCitation id="431994B7EB7B70719AB26B0464DBE266" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
). First abdominal chaetiger with 6 extra lobes or ventral cirri ventral to neuropodium, then reduced to 2 on following 3 chaetigers and 1 or 2 on subsequent chaetigers (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
<figureCitation id="E04DB3B4A63EC93EDF46D9710160EAD2" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
). Interramal cirrus absent.
</paragraph>
<caption doi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 2.</emphasis>
<taxonomicName authorityName="Sun &amp; Yu &amp; Li" authorityYear="2021" class="Polychaeta" family="Orbiniidae" genus="Phylo" kingdom="Animalia" lsidName="Phylo heterochaetus" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="heterochaetus">
<emphasis italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
<caption id="FB0E4EF60DC647B48C42F595DDDEC2C8" doi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1" start="Figure 2" startId="F2">
<paragraph id="107286DC5D9509107E00C5FBFAF0D54C" pageId="0" pageNumber="1">
<emphasis id="B0278FFDC3D8C28501C0F9AF91138BF7" bold="true" pageId="0" pageNumber="1">Figure 2.</emphasis>
<taxonomicName id="405DD1FF4E7A802E1E2976EDE7816F67" authorityName="Sun &amp; Yu &amp; Li" authorityYear="2021" class="Polychaeta" family="Orbiniidae" genus="Phylo" kingdom="Animalia" lsidName="Phylo heterochaetus" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="heterochaetus">
<emphasis id="DF03DF0AE4AF1815FADB9E99D16616BA" italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="B4FB58CD43956DC3F8FFC54D96F8C04B" bold="true" pageId="0" pageNumber="1">A</emphasis>
anterior body in lateral view
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="E1DB6BF947204F1B9695687CB3B6FB76" bold="true" pageId="0" pageNumber="1">B</emphasis>
parapodium of chaetiger 7
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="87D60E6908233191F38A52D5C2E9E2B0" bold="true" pageId="0" pageNumber="1">C</emphasis>
parapodium of anterior abdominal chaetiger
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="A185D01347D5D0CD67392040E520E61E" bold="true" pageId="0" pageNumber="1">D</emphasis>
parapodium of chaetiger 62
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="8199D99DE68A406A48E5B225F28F951A" bold="true" pageId="0" pageNumber="1">E</emphasis>
diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="99FF817788CDFC01C0C2C021FA5BF5AE" bold="true" pageId="0" pageNumber="1">A</emphasis>
); 400
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="1026A8EBBADE9746060039BD31FEB03B" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">B-D</emphasis>
<emphasis id="EE90353B30C26BA2D46225D483804E7E" bold="true" pageId="0" pageNumber="1">B-D</emphasis>
); 200
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="218B5D2A55F891475DB208374CC02ABB" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="D02128C851FD8522068CCBCC158ED957" bold="true" pageId="0" pageNumber="1">E</emphasis>
).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<paragraph id="85083FB3C82908102EA400DB55BFBD9E" pageId="0" pageNumber="1">
Branchiae from chaetiger 5, on anterior chaetigers short, triangular, tapering to narrow papillate rounded apex (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2B</figureCitation>
<figureCitation id="5464D103031E0F34C019B864532E8351" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2B</figureCitation>
), then becoming narrower and longer, leaf-like and ciliated (Fig.
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
<figureCitation id="01BD3861AD5257E5968D69657326E86C" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2C, D</figureCitation>
).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<paragraph id="26D1A3200BC4AC9D7FA3394BCCDAA3C4" pageId="0" pageNumber="1">
Thoracic notopodia with fascicles of crenulated capillaries. Abdominal notopodia with few long, thin capillaries, 2-4 furcate chaetae and 3-5 imbedded aciculae, furcate chaetae with unequal tynes, each tyne with fine needles directed medially, shaft with transverse rows of barbs (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3E</figureCitation>
<figureCitation id="01912ACE58B4559827ABB4D7A9F829C1" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3E</figureCitation>
).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<paragraph id="3CBB1A3264E54F6EC2A198A34FE1F889" pageId="0" pageNumber="1">
Anterior thoracic neuropodia with 4 rows and 1 short posterior rows of yellow uncini, and posterior row of crenulate capillaries (Figs
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2E</figureCitation>
<figureCitation id="F1832CE6DD374CDEC72412092B914A6B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2E</figureCitation>
,
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B, E, F</figureCitation>
<figureCitation id="A139B4F3ACBB365255647082F8634EC2" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B, E, F</figureCitation>
). Anterior 2 rows mixed with 10-12 subuluncini, last row with 7-9 uncini, curved ventrally to anterior rows (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B</figureCitation>
<figureCitation id="2DEBD51E15B3EEC1703376B780463285" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B</figureCitation>
). Uncini of first 1-4 rows short, with blunt-tipped apex, with 10-18 transverse rows of blunt barbs on convex side, with conspicuous groove apically (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B, D</figureCitation>
<figureCitation id="E96269C9460DA30602AC59DD221E533E" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B, D</figureCitation>
); uncini of last row longer than anterior ones, only located in ventral side of neuropodium (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A</figureCitation>
<figureCitation id="A9FECD985E48CDC4C91F051F6156F02E" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A</figureCitation>
); subuluncini resemble uncini, but with distally pointed tip, with more than 30 rows of blunt barbs, surrounded by sheath (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B</figureCitation>
<figureCitation id="7553623F1BDE676E983F661F5FDD8EBD" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B</figureCitation>
). Posterior thoracic neuropodia with 4-7 modified spines (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
<figureCitation id="B88DA92C9A9A6F1C29B45EDB4A161092" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
), single short row of uncini and 1 or 2 rows crenulate capillaries. Modified spines large, hastate, superior one projecting from neuropodium, with glandular pouch (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
<figureCitation id="36F2C2ECEA7B16308990787E6A862AF6" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
). Abdominal neurochaetae including 4-6 thin capillaries and single acicula, thin and imbedded.
</paragraph>
<caption doi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1" start="Figure 3" startId="F3">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 3.</emphasis>
<caption id="F77C84D42EF3E3F5B95BD3FE38D65D88" doi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1" start="Figure 3" startId="F3">
<paragraph id="CF125F7589FA5DFE7C4D99EAD12B8840" pageId="0" pageNumber="1">
<emphasis id="5BFE14C5AA68EE04A252CCED1AF9A7DC" bold="true" pageId="0" pageNumber="1">Figure 3.</emphasis>
SEM pictures of
<taxonomicName authorityName="Sun &amp; Yu &amp; Li" authorityYear="2021" class="Polychaeta" family="Orbiniidae" genus="Phylo" kingdom="Animalia" lsidName="Phylo heterochaetus" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="heterochaetus">
<emphasis italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
<taxonomicName id="094213142B80999E4545679DF629DA1F" authorityName="Sun &amp; Yu &amp; Li" authorityYear="2021" class="Polychaeta" family="Orbiniidae" genus="Phylo" kingdom="Animalia" lsidName="Phylo heterochaetus" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="heterochaetus">
<emphasis id="54D2A5401DEE863033547327B0B595A9" italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
<emphasis id="82CCF020A8E7719A736576770444819D" bold="true" pageId="0" pageNumber="1">A</emphasis>
neurochaetae of thorax
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="2379630EEEE712D8F656E066090DC155" bold="true" pageId="0" pageNumber="1">B</emphasis>
uncini and subuluncini
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="DEE0B72CAD5020E638C4E6A28ECC7AFD" bold="true" pageId="0" pageNumber="1">C</emphasis>
modified spines
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="04B816984536B6D07C878638946502E0" bold="true" pageId="0" pageNumber="1">D</emphasis>
uncini of last rows of thoracic neuropodia
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
<emphasis id="FF9AA2BEDE836D865A47B5D946C80443" bold="true" pageId="0" pageNumber="1">E</emphasis>
furcate chaeta
<emphasis bold="true" pageId="0" pageNumber="1">F, G</emphasis>
<emphasis id="79E5EF6809407480197C3977C87CBD94" bold="true" pageId="0" pageNumber="1">F, G</emphasis>
crenulate capillaries. Scale bars: 250
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="814B5625D447269CFB6F9832B35E4947" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
<emphasis id="B775C29F868ED811D7C469AD89B76B7D" bold="true" pageId="0" pageNumber="1">C</emphasis>
); 200
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="BDA842379077F9AB1E3DD8B7451091C8" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">A, E, F</emphasis>
<emphasis id="E04F58F910A0B637AAD13F17DC88B545" bold="true" pageId="0" pageNumber="1">A, E, F</emphasis>
); 50
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="F6194DCE92123757E813753B23C4E099" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
<emphasis id="A87CF950C364BFD25C46F1499ED91E0D" bold="true" pageId="0" pageNumber="1">B</emphasis>
); 30
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="5B3E0FB9856790044391823ACB760B7C" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
<emphasis id="39C255FF99C069811B4D20108A4497D0" bold="true" pageId="0" pageNumber="1">G</emphasis>
); 10
<normalizedToken originalValue="μm">μm</normalizedToken>
<normalizedToken id="73E671DEC9FA86D83E20F876F8DB1E6B" originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
<emphasis id="83F3150E4D709CA283D0CD19F801562E" bold="true" pageId="0" pageNumber="1">D</emphasis>
).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<paragraph id="20F3DC04CA068E2AA7806343AD75E86E" pageId="0" pageNumber="1">
Anterior thoracic neuropodia with 5 or 6 rows of yellow uncini and posterior row of crenulate capillaries (Figs
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2E</figureCitation>
<figureCitation id="C9C7673C4D909E535927A8229411734A" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylo heterochaetus sp. nov. A anterior body in lateral view B parapodium of chaetiger 7 C parapodium of anterior abdominal chaetiger D parapodium of chaetiger 62 E diagram showing arrangement of anterior thoracic neurochaetae. Scale bars: 2 mm (A); 400 μm (B-D); 200 μm (E)." figureDoi="10.3897/zookeys.1068.71925.figure2" httpUri="https://binary.pensoft.net/fig/605878" pageId="0" pageNumber="1">2E</figureCitation>
,
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B</figureCitation>
<figureCitation id="F23187F043DCC957D6F1BB87159C9C56" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B</figureCitation>
). Anterior 2 rows mixed with 10-12 subuluncini, last row with 7-9 uncini, curved ventrally to anterior rows (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B</figureCitation>
<figureCitation id="80C15F55E3713EB2149D380C34165A2D" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A, B</figureCitation>
). Uncini of anterior 4 or 5 rows short, with blunt-tipped apex, with 10-18 transverse rows of blunt barbs on convex side, with conspicuous groove apically (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B, D</figureCitation>
<figureCitation id="C157D08E959F29AB52CC1EF35AC165B2" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B, D</figureCitation>
); uncini of last row longer than anterior ones, only located in ventral side of neuropodium (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A</figureCitation>
<figureCitation id="A07BEE3F3D51931664DF78E5540C7A00" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3A</figureCitation>
).
<taxonomicName lsidName="" pageId="0" pageNumber="1" rank="tribe" tribe="Subuluncini">Subuluncini</taxonomicName>
<taxonomicName id="F6081C028273898A03127C56C669E9EB" lsidName="" pageId="0" pageNumber="1" rank="tribe" tribe="Subuluncini">Subuluncini</taxonomicName>
resemble uncini but with distally pointed tip, with more than 30 rows of blunt barbs, surrounded by sheath (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B</figureCitation>
<figureCitation id="261AB71F62246A8DCACA99961845531F" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3B</figureCitation>
). Posterior thoracic neuropodia with 4-7 modified spines (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
<figureCitation id="A7295D2E65FA3C661B4C03E6A1B06048" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
), single short row of uncini and 1 or 2 rows crenulate capillaries. Modified spines large, hastate, superior one projecting from neuropodium (Fig.
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
<figureCitation id="0CCF52990F1B8595D1412E08A0709CC5" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. SEM pictures of Phylo heterochaetus sp. nov. A neurochaetae of thorax B uncini and subuluncini C modified spines D uncini of last rows of thoracic neuropodia E furcate chaeta F, G crenulate capillaries. Scale bars: 250 μm (C); 200 μm (A, E, F); 50 μm (B); 30 μm (G); 10 μm (D)." figureDoi="10.3897/zookeys.1068.71925.figure3" httpUri="https://binary.pensoft.net/fig/605879" pageId="0" pageNumber="1">3C</figureCitation>
). Abdominal neurochaetae including 4-6 thin capillaries and single acicula, thin and imbedded.
</paragraph>
<paragraph pageId="0" pageNumber="1">Pygidium not observed.</paragraph>
<paragraph id="0EA31E1333EDF429FFCA3823798155E0" pageId="0" pageNumber="1">Pygidium not observed.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="variation">
<paragraph pageId="0" pageNumber="1">Variation.</paragraph>
<paragraph pageId="0" pageNumber="1">One paratype (MBM286986) with 13 and 14 anterior thoracic chaetigers on left and right side respectively, posterior thorax with 9 and 8 chaetigers, respectively. Holotype and other specimens with 13 anterior thoracic chaetigers, posterior thorax with 4-8.</paragraph>
<subSubSection id="A319298A4995746D2A0A7C0071496684" pageId="0" pageNumber="1" type="variation">
<paragraph id="AE671C21D49E0BAB2C5D3BEB29F993E2" pageId="0" pageNumber="1">Variation.</paragraph>
<paragraph id="F5CAAC34866CE8F7F8AEF7B7E5E9D299" pageId="0" pageNumber="1">One paratype (MBM286986) with 13 and 14 anterior thoracic chaetigers on left and right side respectively, posterior thorax with 9 and 8 chaetigers, respectively. Holotype and other specimens with 13 anterior thoracic chaetigers, posterior thorax with 4-8.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="etymology">
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="1">The species is named for the thoracic neuropodia with two kinds of uncini.</paragraph>
<subSubSection id="FFB8DB7EDF5BA342859B12C8C1E86530" pageId="0" pageNumber="1" type="etymology">
<paragraph id="49D3EAD987AD8931D45B4513D9C14612" pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph id="C5B3D63BF3B03C65BDA0C86B8F7FB84C" pageId="0" pageNumber="1">The species is named for the thoracic neuropodia with two kinds of uncini.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="type locality">
<paragraph pageId="0" pageNumber="1">Type locality.</paragraph>
<paragraph pageId="0" pageNumber="1">Northern Yellow Sea, China.</paragraph>
<subSubSection id="DDD0D4D351AE8F4249CE52A7FC2E2BC2" pageId="0" pageNumber="1" type="type locality">
<paragraph id="5C262C86329AC15DB55DB461E716DA9B" pageId="0" pageNumber="1">Type locality.</paragraph>
<paragraph id="6C60A318D88FC418E63963607EBBA713" pageId="0" pageNumber="1">Northern Yellow Sea, China.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">
<subSubSection id="9BA0FACA9890261603624EF6751EC9FE" pageId="0" pageNumber="1" type="remarks">
<paragraph id="283533384719A19C143A1BDD0F02D3A3" pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph id="2BCCBAC239780EF609324C532C3859BC" pageId="0" pageNumber="1">
This species is unusual in the genus in having anterior thoracic neuropodia with 5 or 6 rows of uncini intermixed with a few subuluncini in the first 1 or 2 rows.
<taxonomicName authorityName="Sun &amp; Yu &amp; Li" authorityYear="2021" class="Polychaeta" family="Orbiniidae" genus="Phylo" kingdom="Animalia" lsidName="Phylo heterochaetus" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="heterochaetus">
<emphasis italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
<taxonomicName id="5D0A54879F7F2AD34015F2CA2066A7BD" authorityName="Sun &amp; Yu &amp; Li" authorityYear="2021" class="Polychaeta" family="Orbiniidae" genus="Phylo" kingdom="Animalia" lsidName="Phylo heterochaetus" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="heterochaetus">
<emphasis id="2AF457CA0000A97B53CAE88F4D326EBC" italics="true" pageId="0" pageNumber="1">Phylo heterochaetus</emphasis>
</taxonomicName>
sp. nov. is similar with
<taxonomicName lsidName="P. ornatus" pageId="0" pageNumber="1" rank="species" species="ornatus">
<emphasis italics="true" pageId="0" pageNumber="1">P. ornatus</emphasis>
<taxonomicName id="04647B7BA840943976BEBB5D1E5E8531" lsidName="P. ornatus" pageId="0" pageNumber="1" rank="species" species="ornatus">
<emphasis id="B2EF728F5BC5868AC71510A6088E1388" italics="true" pageId="0" pageNumber="1">P. ornatus</emphasis>
</taxonomicName>
(Verrill, 1873) for: 1) anterior thoracic neuropodia with rows of uncini, 2) lacking interramal cirri, 3) anterior thorax with 13 or 14 chaetigers. They can be easily distinguished by 1) species of
<taxonomicName lsidName="P. heterochaetus" pageId="0" pageNumber="1" rank="species" species="heterochaetus">
<emphasis italics="true" pageId="0" pageNumber="1">P. heterochaetus</emphasis>
<taxonomicName id="BA0A83EBCBB8756B3E6907EA7149B27F" lsidName="P. heterochaetus" pageId="0" pageNumber="1" rank="species" species="heterochaetus">
<emphasis id="6EED64D14F0536007F353653CA2CB391" italics="true" pageId="0" pageNumber="1">P. heterochaetus</emphasis>
</taxonomicName>
sp. nov. with 4-8 posterior thoracic chaetigers, while the latter species with 13 or more chaetigers; 2) species of
<taxonomicName lsidName="P. heterochaetus" pageId="0" pageNumber="1" rank="species" species="heterochaetus">
<emphasis italics="true" pageId="0" pageNumber="1">P. heterochaetus</emphasis>
<taxonomicName id="C5956A43CA95120C36998FF7C76338E6" lsidName="P. heterochaetus" pageId="0" pageNumber="1" rank="species" species="heterochaetus">
<emphasis id="A7DB686E06AEC9E2B087B43669D95FEA" italics="true" pageId="0" pageNumber="1">P. heterochaetus</emphasis>
</taxonomicName>
sp. nov. with 10 or 11 subuluncini intermixed with first 2 rows uncini, while the latter species lacks subuluncini; 3) modified spines hastate in
<taxonomicName lsidName="P. heterochaetus" pageId="0" pageNumber="1" rank="species" species="heterochaetus">
<emphasis italics="true" pageId="0" pageNumber="1">P. heterochaetus</emphasis>
<taxonomicName id="902CBBFD34E94A369CBD70E23AA8CC55" lsidName="P. heterochaetus" pageId="0" pageNumber="1" rank="species" species="heterochaetus">
<emphasis id="1704DD6116D49A38E5DC332D4F591CFB" italics="true" pageId="0" pageNumber="1">P. heterochaetus</emphasis>
</taxonomicName>
sp. nov. and acicular in
<taxonomicName lsidName="P. ornatus" pageId="0" pageNumber="1" rank="species" species="ornatus">
<emphasis italics="true" pageId="0" pageNumber="1">P. ornatus</emphasis>
<taxonomicName id="37D5FD8C0AD18B76829EC8691994920A" lsidName="P. ornatus" pageId="0" pageNumber="1" rank="species" species="ornatus">
<emphasis id="E92CC46C711438C4E2B1E59B2CE917D8" italics="true" pageId="0" pageNumber="1">P. ornatus</emphasis>
</taxonomicName>
.
</paragraph>