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<mods:title id="5A784220682AC33811673C36D3D5BBF2">Two new species of Xyalidae Chitwood, 1951 (Nematoda, Monhysterida) from Chinese Sea Area</mods:title>
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<paragraph id="8BA5A326FFD7AB708FCDFA27FB104BA5" blockId="10.[151,1198,1458,1485]" box="[151,1198,1458,1485]" pageId="10" pageNumber="265">
<emphasis id="B96E7F34FFD7AB708FCDFA27FB9E4BA5" bold="true" box="[151,1056,1458,1485]" pageId="10" pageNumber="265">
Dichotomous key to the species of
<taxonomicName id="4C1AD8A5FFD7AB708D18FA27FCA04BA4" ID-CoL="87HDP" authorityName="Schuurmans Stekhoven" authorityYear="1935" box="[578,798,1458,1485]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="genus">
<emphasis id="B96E7F34FFD7AB708D18FA27FCA04BA4" bold="true" box="[578,798,1458,1485]" italics="true" pageId="10" pageNumber="265">Metadesmolaimus</emphasis>
</taxonomicName>
(modified from
<bibRefCitation id="EF8BDED7FFD7AB708CB0FA27FB9E4BA5" author="Guo, Y. Q. &amp; Chen, Y. Z. &amp; Liu, M. D." box="[1002,1056,1458,1484]" pageId="10" pageNumber="265" pagination="73 - 79" refId="ref7888" refString="Guo, Y. Q., Chen, Y. Z. &amp; Liu, M. D. (2016) Metadesmolaimus zhanggi sp. nov. (Nematoda: Xyalidae) from East China Sea, with a pictorial key to Metadesmolaimus species. Cahiers de Biologie Marine, 57, 73 - 79." type="journal article" year="2016">Guo</bibRefCitation>
</emphasis>
<emphasis id="B96E7F34FFD7AB708B7DFA26FBDC4BA5" box="[1063,1122,1458,1484]" italics="true" pageId="10" pageNumber="265">et al.</emphasis>
<emphasis id="B96E7F34FFD7AB708B33FA27FB104BA5" bold="true" box="[1129,1198,1458,1484]" pageId="10" pageNumber="265">2016)</emphasis>
</paragraph>
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<subSubSection id="C300F0ADFFD7AB718FCDFA6DFA224D7C" lastPageId="11" lastPageNumber="266" pageId="10" pageNumber="265" type="key">
<key id="FF8BF417FFD7AB718FCDFA6DFA224D7C" lastPageId="11" lastPageNumber="266" pageId="10" pageNumber="265">
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<keyLead id="30EB0013FFD7AB708FCDFA6DFA224864" box="[151,1436,1527,1549]" pageId="10" pageNumber="265">1. Spicules slender and elongated, longer than two cloacal body diameters.......................................... 2</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD7AB708FCDF980FA224843" blockId="10.[151,1436,1527,2019]" box="[151,1436,1557,1579]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF980FA224843" box="[151,1436,1557,1579]" pageId="10" pageNumber="265">- Spicules not elongated, shorter than 1.6 cloacal body diameters................................................. 3</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD7AB708FCDF9A7FA2248EB" pageId="10" pageNumber="265">
<paragraph id="8BA5A326FFD7AB708FCDF9A7FA22480C" blockId="10.[151,1436,1527,2019]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF9A7FA22480C" pageId="10" pageNumber="265">
2. Body
<quantity id="4CE20EC3FFD7AB708E46F9A7FEDB4821" box="[284,357,1586,1608]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="10" pageNumber="265" unit="mm" value="1.6">1.6 mm</quantity>
long, amphids 0.6 head diameter from anterior end...............................................................................................
<taxonomicName id="4C1AD8A5FFD7AB708C78F9C5FA22480C" ID-CoL="8GCNV" authority="(Wieser &amp; Hopper, 1967) Gerlach &amp; Riemann, 1973" authorityName="Gerlach &amp; Riemann" authorityYear="1973" baseAuthorityName="Wieser &amp; Hopper" baseAuthorityYear="1967" box="[802,1436,1615,1637]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="caniculus">
<emphasis id="B96E7F34FFD7AB708C78F9C5FC20480D" box="[802,926,1615,1637]" italics="true" pageId="10" pageNumber="265">M. caniculus</emphasis>
(
<bibRefCitation id="EF8BDED7FFD7AB708CF1F9DAFB2C480C" author="Wieser, W. &amp; Hopper, B." box="[939,1170,1615,1637]" pageId="10" pageNumber="265" pagination="239 - 344" refId="ref9271" refString="Wieser, W. &amp; Hopper, B. (1967) Marine nematodes of the east coast of North America. I. Florida. Bulletiin Museum comparative Zoology, 135, 239 - 344." type="journal article" year="1967">Wieser &amp; Hopper, 1967</bibRefCitation>
)
<bibRefCitation id="EF8BDED7FFD7AB708BC5F9DAFA22480C" author="Gerlach, S. A. &amp; Riemann, F." box="[1183,1436,1615,1637]" pageId="10" pageNumber="265" pagination="1 - 404" refId="ref7849" refString="Gerlach, S. A. &amp; Riemann, F. (1973) The Bremerhaven Checklist of Aquatic Nematodes. Veroffentlichungen des Instituts fur Meeresforschung in Bremerhaven, Supplement 4 (1), 1 - 404." type="journal article" year="1973">Gerlach &amp; Riemann, 1973</bibRefCitation>
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<keyLead id="30EB0013FFD7AB708FCDF9F8FA2248EB" box="[151,1436,1645,1667]" pageId="10" pageNumber="265">
- Body
<quantity id="4CE20EC3FFD7AB708E46F9F8FE2C48EB" box="[284,402,1645,1666]" metricMagnitude="-4" metricUnit="m" metricValue="9.5" metricValueMax="11.0" metricValueMin="8.0" pageId="10" pageNumber="265" unit="mm" value="0.95" valueMax="1.1" valueMin="0.8">0.81.1 mm</quantity>
, amphids 1 head diameter from anterior end............................
<taxonomicName id="4C1AD8A5FFD7AB708BC2F9FBFA2248EB" ID-CoL="8GCP7" authority="Lorenzen, 1971" authorityName="Lorenzen" authorityYear="1971" box="[1176,1436,1645,1667]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="varians">
<emphasis id="B96E7F34FFD7AB708BC2F9FBFABE48EB" box="[1176,1280,1645,1667]" italics="true" pageId="10" pageNumber="265">M. varians</emphasis>
<bibRefCitation id="EF8BDED7FFD7AB708A5CF9F8FA2248EB" author="Lorenzen, S." box="[1286,1436,1645,1666]" pageId="10" pageNumber="265" pagination="223 - 248" refId="ref8231" refString="Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet fur Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223 - 248." type="journal article" year="1971">Lorenzen, 1971</bibRefCitation>
</taxonomicName>
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<paragraph id="8BA5A326FFD7AB708FCDF91FFA2248F6" blockId="10.[151,1436,1527,2019]" box="[151,1436,1674,1696]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF91FFA2248F6" box="[151,1436,1674,1696]" pageId="10" pageNumber="265">3. Tail conical.......................................................................................... 4</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD7AB708FCDF93DFA2248D4" blockId="10.[151,1436,1527,2019]" box="[151,1436,1703,1725]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF93DFA2248D4" box="[151,1436,1703,1725]" pageId="10" pageNumber="265">- Tail conico-cylindrical................................................................................. 7</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD7AB708FCDF950FA22497C" pageId="10" pageNumber="265">
<paragraph id="8BA5A326FFD7AB708FCDF950FA22489E" blockId="10.[151,1436,1527,2019]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF950FA22489E" pageId="10" pageNumber="265">
4. Somatic setae long and dense, spicules slightly bent with tooth-shaped distal end....................................................................................................
<taxonomicName id="4C1AD8A5FFD7AB708CAAF976FA22489E" ID-CoL="88NQK" authority="(Gerlach, 1956) Lorenzen, 1971" authorityName="Lorenzen" authorityYear="1971" baseAuthorityName="Gerlach" baseAuthorityYear="1956" box="[1008,1436,1762,1784]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="hamatus">
<emphasis id="B96E7F34FFD7AB708CAAF976FBDF489E" box="[1008,1121,1762,1784]" italics="true" pageId="10" pageNumber="265">M. hamatus</emphasis>
(
<bibRefCitation id="EF8BDED7FFD7AB708B34F977FB474891" author="Gerlach, S. A." box="[1134,1273,1762,1784]" pageId="10" pageNumber="265" pagination="85 - 109" refId="ref7781" refString="Gerlach, S. A. (1956) Diagnosen neuer Nematoden aus der Kieler Bucht. Kieler Meeresforsch, 12, 85 - 109." type="journal article" year="1956">Gerlach, 1956</bibRefCitation>
)
<bibRefCitation id="EF8BDED7FFD7AB708A5CF976FA22489E" author="Lorenzen, S." box="[1286,1436,1762,1784]" pageId="10" pageNumber="265" pagination="223 - 248" refId="ref8231" refString="Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet fur Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223 - 248." type="journal article" year="1971">Lorenzen, 1971</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD7AB708FCDF895FA22497C" blockId="10.[151,1436,1527,2019]" box="[151,1436,1791,1813]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF895FA22497C" box="[151,1436,1791,1813]" pageId="10" pageNumber="265">- Somatic setae shorter than 0.6 corresponding body diameter, spicules arcuated, distal end not tooth-shaped.............. 5</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD7AB708FCDF888FA224939" pageId="10" pageNumber="265">
<paragraph id="8BA5A326FFD7AB708FCDF888FA22495B" blockId="10.[151,1436,1527,2019]" box="[151,1436,1821,1843]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF888FA22495B" box="[151,1436,1821,1843]" pageId="10" pageNumber="265">
5. Both spicules distinctly unequal in length..........................................
<taxonomicName id="4C1AD8A5FFD7AB708B35F88BFA22495B" ID-CoL="8GCP4" authority="Lorenzen, 1971" authorityName="Lorenzen" authorityYear="1971" box="[1135,1436,1821,1843]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="heteroclitus">
<emphasis id="B96E7F34FFD7AB708B35F88BFB41495B" box="[1135,1279,1821,1843]" italics="true" pageId="10" pageNumber="265">M. heteroclitus</emphasis>
<bibRefCitation id="EF8BDED7FFD7AB708A5CF888FA22495B" author="Lorenzen, S." box="[1286,1436,1821,1842]" pageId="10" pageNumber="265" pagination="223 - 248" refId="ref8231" refString="Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet fur Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223 - 248." type="journal article" year="1971">Lorenzen, 1971</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD7AB708FCDF8AEFA224939" blockId="10.[151,1436,1527,2019]" box="[151,1436,1850,1872]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF8AEFA224939" box="[151,1436,1850,1872]" pageId="10" pageNumber="265">- Both spicules equal in length............................................................................ 6</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD7AB708FCDF8C2FA2249AC" pageId="10" pageNumber="265">
<paragraph id="8BA5A326FFD7AB708FCDF8C2FA2249E3" blockId="10.[151,1436,1527,2019]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF8C2FA2249E3" pageId="10" pageNumber="265">
6. Amphids small, 32%36% corresponding body diameter in diameter, spicules relatively slender, 1.51.6 cloacal body diameters long...............................................................................
<taxonomicName id="4C1AD8A5FFD7AB708BE4F8E3FA2249E3" ID-CoL="8GCP2" authority="Platt, 1983" authorityName="Platt" authorityYear="1983" box="[1214,1436,1909,1931]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="gaelicus">
<emphasis id="B96E7F34FFD7AB708BE4F8E3FA9049E3" box="[1214,1326,1909,1931]" italics="true" pageId="10" pageNumber="265">M. gaelicus</emphasis>
<bibRefCitation id="EF8BDED7FFD7AB708A6EF8E0FA2249E3" author="Platt, H. M." box="[1332,1436,1909,1931]" pageId="10" pageNumber="265" pagination="363 - 373" refId="ref8550" refString="Platt, H. M. (1983) New species of Metadesmolaimus and Stephanolaimus (Nematoda: Chromadoria) from Northern Ireland with reviews of the genera. Zoological Journal of the Linnean Society, 78, 363 - 373. https: // doi. org / 10.1111 / j. 1096 - 3642.1975. tb 02265. x" type="journal article" year="1983">Platt, 1983</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD7AB708FCDF806FA2249AC" blockId="10.[151,1436,1527,2019]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF806FA2249AC" pageId="10" pageNumber="265">
- Amphids large, 50% corresponding body diameter in diameter, spicules broad, 1.3 cloacal body diameters long.............................................................................
<taxonomicName id="4C1AD8A5FFD7AB708B52F825FA2249AC" ID-CoL="88NQM" authority="(Gerlach, 1956) Lorenzen, 1971" authorityName="Lorenzen" authorityYear="1971" baseAuthorityName="Gerlach" baseAuthorityYear="1956" box="[1032,1436,1967,1989]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="tersus">
<emphasis id="B96E7F34FFD7AB708B52F825FBDF49AC" box="[1032,1121,1968,1989]" italics="true" pageId="10" pageNumber="265">M. tersus</emphasis>
(
<bibRefCitation id="EF8BDED7FFD7AB708B34F83AFB4749AC" author="Gerlach, S. A." box="[1134,1273,1967,1989]" pageId="10" pageNumber="265" pagination="85 - 109" refId="ref7781" refString="Gerlach, S. A. (1956) Diagnosen neuer Nematoden aus der Kieler Bucht. Kieler Meeresforsch, 12, 85 - 109." type="journal article" year="1956">Gerlach, 1956</bibRefCitation>
)
<bibRefCitation id="EF8BDED7FFD7AB708A5CF825FA2249AC" author="Lorenzen, S." box="[1286,1436,1968,1989]" pageId="10" pageNumber="265" pagination="223 - 248" refId="ref8231" refString="Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet fur Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223 - 248." type="journal article" year="1971">Lorenzen, 1971</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD7AB718FCDF858FA224EC4" lastPageId="11" lastPageNumber="266" pageId="10" pageNumber="265">
<paragraph id="8BA5A326FFD7AB708FCDF858FA22498A" blockId="10.[151,1436,1527,2019]" box="[151,1436,1997,2019]" pageId="10" pageNumber="265">
<keyLead id="30EB0013FFD7AB708FCDF858FA22498A" box="[151,1436,1997,2019]" pageId="10" pageNumber="265">
7. Tail elongated, nine cloacal body diameters long...........................
<taxonomicName id="4C1AD8A5FFD7AB708CA3F85BFA22498A" ID-CoL="8GCNY" authority="Schuurmans Stekhoven, 1950" authorityName="Schuurmans Stekhoven" authorityYear="1950" box="[1017,1436,1997,2019]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="10" pageNumber="265" phylum="Nematoda" rank="species" species="coronatus">
<emphasis id="B96E7F34FFD7AB708CA3F85BFBC6498A" box="[1017,1144,1998,2019]" italics="true" pageId="10" pageNumber="265">M. coronatus</emphasis>
<bibRefCitation id="EF8BDED7FFD7AB708B24F858FA22498A" author="Schuurmans Stekhoven, J." box="[1150,1436,1997,2019]" pageId="10" pageNumber="265" pagination="1 - 220" refId="ref8718" refString="Schuurmans Stekhoven, J. H (1950) The freeliving marine nemas of the Mediterranean: I. The Bay of Villefranche. Institut Royal des Sciences Naturelles de Belgique: Bruxelles, 2 (37), 1 - 220." type="journal article" year="1950">Schuurmans Stekhoven, 1950</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFF0DFA224EC4" blockId="11.[151,1437,151,789]" box="[151,1436,151,173]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFF0DFA224EC4" box="[151,1436,151,173]" pageId="11" pageNumber="266">- Tail not elongated, shorter than seven cloacal body diameters.................................................. 8</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFF20FA224E8E" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFF20FA224EA3" blockId="11.[151,1437,151,789]" box="[151,1436,181,203]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFF20FA224EA3" box="[151,1436,181,203]" pageId="11" pageNumber="266">
8. Pharynx with 18 bulb-like muscular swellings..............................................
<taxonomicName id="4C1AD8A5FFD6AB718B8EFF20FAF74EA3" authority="Li &amp; Ban &amp; Huang, 2023" authorityName="Li &amp; Ban &amp; Huang" authorityYear="2023" box="[1236,1353,181,202]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="bulbosus" status="sp. nov.">
<emphasis id="B96E7F34FFD6AB718B8EFF20FAF74EA3" box="[1236,1353,181,202]" italics="true" pageId="11" pageNumber="266">M. bulbosus</emphasis>
</taxonomicName>
<emphasis id="B96E7F34FFD6AB718A0AFF20FA224EA3" bold="true" box="[1360,1436,181,202]" pageId="11" pageNumber="266">
<taxonomicNameLabel id="A25DC24FFFD6AB718A0AFF20FA224EA3" box="[1360,1436,181,202]" pageId="11" pageNumber="266" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFF47FA224E8E" blockId="11.[151,1437,151,789]" box="[151,1436,210,232]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFF47FA224E8E" box="[151,1436,210,232]" pageId="11" pageNumber="266">
<emphasis id="B96E7F34FFD6AB718FCDFF47FF214E8E" bold="true" box="[151,159,210,231]" pageId="11" pageNumber="266">-</emphasis>
Pharynx even without bulb-like muscular swelling........................................................... 9
</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFF65FA224F4B" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFF65FA224F6C" blockId="11.[151,1437,151,789]" box="[151,1436,239,261]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFF65FA224F6C" box="[151,1436,239,261]" pageId="11" pageNumber="266">9. Somatic setae dense and long........................................................................... 10</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFE98FA224F4B" blockId="11.[151,1437,151,789]" box="[151,1436,269,291]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFE98FA224F4B" box="[151,1436,269,291]" pageId="11" pageNumber="266">- Somatic setae sparse and short.......................................................................... 13</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFEBFFA224F34" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFEBFFA224F29" blockId="11.[151,1437,151,789]" box="[151,1436,298,320]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFEBFFA224F29" box="[151,1436,298,320]" pageId="11" pageNumber="266">
10. Outer labial setae jointed, distal end of spicules not hooked.........................
<taxonomicName id="4C1AD8A5FFD6AB718B1CFEBEFA224F29" ID-CoL="8GCP8" authority="Guo, Chen &amp; Liu, 2016" authorityName="Guo, Chen &amp; Liu" authorityYear="2016" box="[1094,1436,298,320]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="zhanggi">
<emphasis id="B96E7F34FFD6AB718B1CFEBEFB0C4F56" box="[1094,1202,298,320]" italics="true" pageId="11" pageNumber="266">M. zhanggi</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718BE2FEBFFA224F29" author="Guo, Y. Q. &amp; Chen, Y. Z. &amp; Liu, M. D." box="[1208,1436,298,320]" pageId="11" pageNumber="266" pagination="73 - 79" refId="ref7888" refString="Guo, Y. Q., Chen, Y. Z. &amp; Liu, M. D. (2016) Metadesmolaimus zhanggi sp. nov. (Nematoda: Xyalidae) from East China Sea, with a pictorial key to Metadesmolaimus species. Cahiers de Biologie Marine, 57, 73 - 79." type="journal article" year="2016">Guo, Chen &amp; Liu, 2016</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFEDDFA224F34" blockId="11.[151,1437,151,789]" box="[151,1436,327,349]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFEDDFA224F34" box="[151,1436,327,349]" pageId="11" pageNumber="266">- Outer labial setae unjointed, distal end of spicules hooked.................................................... 11</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFEF0FA224FFE" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFEF0FA224F13" blockId="11.[151,1437,151,789]" box="[151,1436,357,379]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFEF0FA224F13" box="[151,1436,357,379]" pageId="11" pageNumber="266">
11. Gubernaculum absent.......................................................
<taxonomicName id="4C1AD8A5FFD6AB718B10FEF0FA224F13" ID-CoL="af891eea-7344-4b86-a791-031fab37baae" authority="Tchesunov, 1990" authorityName="Tchesunov" authorityYear="1990" box="[1098,1436,357,379]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="psammophilus">
<emphasis id="B96E7F34FFD6AB718B10FEF0FB4B4F13" box="[1098,1269,357,378]" italics="true" pageId="11" pageNumber="266">M. psammophilus</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718BA0FEF0FA224F13" author="Tchesunov, A. V." box="[1274,1436,357,379]" pageId="11" pageNumber="266" pagination="5 - 19" refId="ref8873" refString="Tchesunov, A. V. (1990) Long-hairy Xyalidae (Nematoda, Chromadoria, Monhysterida) in the White Sea; New Species, New Combinations, and the Status of the Genus Trichotheristus). Zoologicheskii Zhurnal, 69 (10), 5 - 19." type="journal article" year="1990">Tchesunov, 1990</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFE16FA224FFE" blockId="11.[151,1437,151,789]" box="[151,1436,386,408]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFE16FA224FFE" box="[151,1436,386,408]" pageId="11" pageNumber="266">- Gubernaculum present................................................................................ 12</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFE35FA224F86" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFE35FA224FDC" blockId="11.[151,1437,151,789]" box="[151,1436,415,437]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFE35FA224FDC" box="[151,1436,415,437]" pageId="11" pageNumber="266">
12. Body slightly slender (a=3237), spicules 32 µm (shorter than 1.4 cloacal body diameters)......
<taxonomicName id="4C1AD8A5FFD6AB718BCAFE35FA224FDC" ID-CoL="88NQJ" authority="Lorenzen, 1971" authorityName="Lorenzen" authorityYear="1971" box="[1168,1436,415,437]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="aduncus">
<emphasis id="B96E7F34FFD6AB718BCAFE35FABE4FDD" box="[1168,1280,415,437]" italics="true" pageId="11" pageNumber="266">M. aduncus</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718A5CFE35FA224FDC" author="Lorenzen, S." box="[1286,1436,416,437]" pageId="11" pageNumber="266" pagination="223 - 248" refId="ref8231" refString="Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet fur Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223 - 248." type="journal article" year="1971">Lorenzen, 1971</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFE28FA224F86" blockId="11.[151,1437,151,789]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFE28FA224F86" pageId="11" pageNumber="266">
- Body slightly stout (a=2529), spicules 4446 µm (1.5 cloacal body diameters)................................................................................................
<taxonomicName id="4C1AD8A5FFD6AB718CF6FE4EFA224F86" ID-CoL="8GCP3" authority="(Warwick &amp; Platt, 1973) Lorenzen, 1977" authorityName="Lorenzen" authorityYear="1977" baseAuthorityName="Warwick &amp; Platt" baseAuthorityYear="1973" box="[940,1436,474,496]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="gelana">
<emphasis id="B96E7F34FFD6AB718CF6FE4EFBB34F86" box="[940,1037,474,496]" italics="true" pageId="11" pageNumber="266">M. gelana</emphasis>
(
<bibRefCitation id="EF8BDED7FFD6AB718B43FE4FFB474F86" author="Warwick, R. M. &amp; Platt, H. M." box="[1049,1273,474,496]" pageId="11" pageNumber="266" pagination="135 - 158" refId="ref9140" refString="Warwick, R. M. &amp; Platt, H. M. (1973) New and little known marine nematodes from a Scottish sandy beach. Cahiers de Biologie Marine, 14, 135 - 158." type="journal article" year="1973">Warwick &amp; Platt, 1973</bibRefCitation>
)
<bibRefCitation id="EF8BDED7FFD6AB718A5CFE4EFA224F86" author="Lorenzen, S." box="[1286,1436,474,496]" pageId="11" pageNumber="266" pagination="197 - 261" refId="ref8296" refString="Lorenzen, S. (1977) Revision der Xyalidae (freilebende Nematoden) auf der Grundlage einer kritischen Analyse von 56 Arten aus Nord- und Ostsee. Veroffentlichungen des Instituts fur Meeresforschung in Bremerhaven, 16, 197 - 261." type="journal article" year="1977">Lorenzen, 1977</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFE6DFA224C43" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFE6DFA224C64" blockId="11.[151,1437,151,789]" box="[151,1436,503,525]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFE6DFA224C64" box="[151,1436,503,525]" pageId="11" pageNumber="266">
13. Amphids larger than 60% corresponding body diameter in diameter.........................
<taxonomicName id="4C1AD8A5FFD6AB718BC0FE6DFA224C64" ID-CoL="88NQL" authority="Lorenzen, 1971" authorityName="Lorenzen" authorityYear="1971" box="[1178,1436,503,525]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="pandus">
<emphasis id="B96E7F34FFD6AB718BC0FE6DFB414C65" box="[1178,1279,503,525]" italics="true" pageId="11" pageNumber="266">M. pandus</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718A5CFE6DFA224C64" author="Lorenzen, S." box="[1286,1436,504,525]" pageId="11" pageNumber="266" pagination="223 - 248" refId="ref8231" refString="Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet fur Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223 - 248." type="journal article" year="1971">Lorenzen, 1971</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFD80FA224C43" blockId="11.[151,1437,151,789]" box="[151,1436,533,555]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFD80FA224C43" box="[151,1436,533,555]" pageId="11" pageNumber="266">- Amphids smaller than 50% corresponding body diameter in diameter........................................... 14</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFDA7FA224CC9" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFDA7FA224C0C" blockId="11.[151,1437,151,789]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFDA7FA224C0C" pageId="11" pageNumber="266">
14. Cephalic setae shorter than 0.5 head diameter, amphids close to anterior end (less than 1 head diameter from anterior end)................................................................................
<taxonomicName id="4C1AD8A5FFD6AB718BD6FDC5FA224C0C" ID-CoL="8GCNX" authority="Gagarin, 2013" authorityName="Gagarin" authorityYear="2013" box="[1164,1436,591,613]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="communis">
<emphasis id="B96E7F34FFD6AB718BD6FDC5FAB34C0C" box="[1164,1293,592,613]" italics="true" pageId="11" pageNumber="266">M. communis</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718A49FDDAFA224C0C" author="Gagarin, V. G." box="[1299,1436,591,613]" pageId="11" pageNumber="266" pagination="119 - 128" refId="ref7705" refString="Gagarin, V. G. (2013) Two new species of the genus Metadesmolaimus Schuurmans Stekhoven, 1935 (Nematoda, Monhysterida) from Goast of Vietnam. International Journal of Nematology, 23, 119 - 128." type="journal article" year="2013">Gagarin, 2013</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFDF8FA224CC9" blockId="11.[151,1437,151,789]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFDF8FA224CC9" pageId="11" pageNumber="266">- Cephalic setae longer than 0.6 head diameter, amphids further from anterior end (longer than 1.5 head diameters from anterior end)............................................................................................... 15</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFD32FA224CB2" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFD32FA224CD4" blockId="11.[151,1437,151,789]" box="[151,1436,679,701]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFD32FA224CD4" box="[151,1436,679,701]" pageId="11" pageNumber="266">
15. Cervical setae longer than 1 corresponding body diameter, gubernaculum broad................
<taxonomicName id="4C1AD8A5FFD6AB718BFEFD3DFA224CD4" ID-CoL="8GCNZ" authority="Gagarin, 2013" authorityName="Gagarin" authorityYear="2013" box="[1188,1436,679,701]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="elegans">
<emphasis id="B96E7F34FFD6AB718BFEFD3DFAB34CD5" box="[1188,1293,679,701]" italics="true" pageId="11" pageNumber="266">M. elegans</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718A49FD32FA224CD4" author="Gagarin, V. G." box="[1299,1436,679,701]" pageId="11" pageNumber="266" pagination="119 - 128" refId="ref7705" refString="Gagarin, V. G. (2013) Two new species of the genus Metadesmolaimus Schuurmans Stekhoven, 1935 (Nematoda, Monhysterida) from Goast of Vietnam. International Journal of Nematology, 23, 119 - 128." type="journal article" year="2013">Gagarin, 2013</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFD50FA224CB2" blockId="11.[151,1437,151,789]" box="[151,1436,709,731]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFD50FA224CB2" box="[151,1436,709,731]" pageId="11" pageNumber="266">- Cervical setae shorter than 0.5 corresponding body diameter, gubernaculum strip-like or sleeve shaped................ 16</keyLead>
</paragraph>
</keyStep>
<keyStep id="30EEBB83FFD6AB718FCDFD77FA224D7C" pageId="11" pageNumber="266">
<paragraph id="8BA5A326FFD6AB718FCDFD77FA224C9E" blockId="11.[151,1437,151,789]" box="[151,1436,738,760]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFD77FA224C9E" box="[151,1436,738,760]" pageId="11" pageNumber="266">
16. Spicules arcuated with terminal teeth, gubernaculum strip-like............................
<taxonomicName id="4C1AD8A5FFD6AB718BCCFD76FA224C9E" ID-CoL="8GCP6" authority="Tchesunov, 1990" authorityName="Tchesunov" authorityYear="1990" box="[1174,1436,738,760]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="similis">
<emphasis id="B96E7F34FFD6AB718BCCFD76FB4B4C9E" box="[1174,1269,738,760]" italics="true" pageId="11" pageNumber="266">M. similis</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718BA0FD77FA224C9E" author="Tchesunov, A. V." box="[1274,1436,738,760]" pageId="11" pageNumber="266" pagination="5 - 19" refId="ref8873" refString="Tchesunov, A. V. (1990) Long-hairy Xyalidae (Nematoda, Chromadoria, Monhysterida) in the White Sea; New Species, New Combinations, and the Status of the Genus Trichotheristus). Zoologicheskii Zhurnal, 69 (10), 5 - 19." type="journal article" year="1990">Tchesunov, 1990</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BA5A326FFD6AB718FCDFC95FA224D7C" blockId="11.[151,1437,151,789]" box="[151,1436,767,789]" pageId="11" pageNumber="266">
<keyLead id="30EB0013FFD6AB718FCDFC95FA224D7C" box="[151,1436,767,789]" pageId="11" pageNumber="266">
- Spicules L-shaped, gubernaculum sleeve-shaped surrounding distal half of spicules..........
<taxonomicName id="4C1AD8A5FFD6AB718BDAFC95FA224D7C" ID-CoL="8GCNS" authority="Gerlach, 1953" authorityName="Gerlach" authorityYear="1953" box="[1152,1436,767,789]" class="Chromadorea" family="Xyalidae" genus="Metadesmolaimus" kingdom="Animalia" order="Monhysterida" pageId="11" pageNumber="266" phylum="Nematoda" rank="species" species="aversivulva">
<emphasis id="B96E7F34FFD6AB718BDAFC95FAB14D7D" box="[1152,1295,767,789]" italics="true" pageId="11" pageNumber="266">M. aversivulva</emphasis>
<bibRefCitation id="EF8BDED7FFD6AB718A4EFD6AFA224D7C" author="Gerlach, S. A." box="[1300,1436,767,789]" pageId="11" pageNumber="266" pagination="517 - 640" refId="ref7746" refString="Gerlach, S. A. (1953) Die Nematodenbesiedlung des Sandstrandes und des Kustengrundwassers an der italienischen Kuste I. Systematischer Teil. Archivio Zoologico Italiano, 37, 517 - 640." type="journal article" year="1953">Gerlach, 1953</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
</key>
</subSubSection>
</treatment>
</document>