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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1159.100908" ID-Pensoft-Pub="1313-2970-1159-121" ID-Pensoft-UUID="739C849A9B9356B5A76ED5FDFA3311D1" ID-ZooBank="2B1C9783E2BA45B98234A3875135A323" ModsDocID="1313-2970-1159-121" checkinTime="1682458953552" checkinUser="pensoft" docAuthor="Guo, Wen, Wang, Mengna, Li, Haotian &amp; Wang, Chunming" docDate="2023" docId="6F69C689BFA25228820E3D855EA57960" docLanguage="en" docName="ZooKeys 1159: 121-131" docOrigin="ZooKeys 1159" docPubDate="2023-04-25" docSource="http://dx.doi.org/10.3897/zookeys.1159.100908" docTitle="Chromadorina communis Guo &amp; Wang &amp; Li &amp; Wang 2023, sp. nov." docType="treatment" docUuid="63F40161-62AA-4836-8F27-9AAF48185A28" docUuidSource="ZooBank" docVersion="2" id="739C849A9B9356B5A76ED5FDFA3311D1" lastPageNumber="121" masterDocId="739C849A9B9356B5A76ED5FDFA3311D1" masterDocTitle="Description of a new nematode species, Chromadorina communis sp. nov. (Nematoda, Chromadoridae), from Changdao Island, China and phylogenetic analysis of Chromadorida based on small subunit rRNA gene sequences" masterLastPageNumber="131" masterPageNumber="121" pageNumber="121" updateTime="1682459254310" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Description of a new nematode species, Chromadorina communis sp. nov. (Nematoda, Chromadoridae), from Changdao Island, China and phylogenetic analysis of Chromadorida based on small subunit rRNA gene sequences</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Guo, Wen</mods:namePart>
<mods:affiliation>College of Life Sciences, Liaocheng University, Liaocheng, 252059, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wang, Mengna</mods:namePart>
<mods:affiliation>College of Life Sciences, Liaocheng University, Liaocheng, 252059, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Li, Haotian</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-8960-3569</mods:nameIdentifier>
<mods:affiliation>College of Life Sciences, Liaocheng University, Liaocheng, 252059, China</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wang, Chunming</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-3630-0921</mods:nameIdentifier>
<mods:affiliation>College of Life Sciences, Liaocheng University, Liaocheng, 252059, China</mods:affiliation>
<mods:nameIdentifier type="email">wangchunming@lcu.edu.cn</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2023</mods:date>
<mods:detail type="pubDate">
<mods:number>2023-04-25</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>1159</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>121</mods:start>
<mods:end>131</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.1159.100908</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1159.100908</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-1159-121</mods:identifier>
<mods:identifier type="ZooBank">2B1C9783E2BA45B98234A3875135A323</mods:identifier>
<mods:identifier type="Pensoft-UUID">739C849A9B9356B5A76ED5FDFA3311D1</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:zoobank.org:act:63F40161-62AA-4836-8F27-9AAF48185A28" httpUri="http://treatment.plazi.org/id/6F69C689BFA25228820E3D855EA57960" lastPageNumber="121" pageId="0" pageNumber="121">
<subSubSection pageId="0" pageNumber="121" type="nomenclature">
<paragraph pageId="0" pageNumber="121">
<taxonomicName LSID="https://zoobank.org/63F40161-62AA-4836-8F27-9AAF48185A28" authority="Guo &amp; Wang &amp; Li &amp; Wang, 2023" authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis" status="sp. nov.">Chromadorina communis</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="121">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="description">
<paragraph pageId="0" pageNumber="121">
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Chromadorina communis sp. nov. A lateral view of male anterior region showing buccal cavity and pharyngeal region (holotype) B lateral view of male anterior region showing buccal cavity (holotype) C lateral view of male anterior region showing cuticle and amphids (holotype) D lateral view of male whole body (holotype) E lateral view of female anterior body showing buccal cavity and pharyngeal region (22 YTCD 6 - 2 - 1) F lateral view of female entire body showing vulva (22 YTCD 6 - 2 - 1) G lateral view of female posterior body (22 YTCD 6 - 2 - 1) H lateral view of male posterior body, showing precloacal supplements and tail (holotype) I lateral view of spicules and gubernaculums. Scale bars: 20 µm (A-C, E); 50 µm (D, F); 30 µm (G, H)." figureDoi="10.3897/zookeys.1159.100908.figure2" httpUri="https://binary.pensoft.net/fig/842395" pageId="0" pageNumber="121">Figs 2</figureCitation>
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Chromadorina communis sp. nov. A lateral view of male anterior region showing buccal cavity and teeth (arrow) (holotype) B lateral view of male anterior region showing cuticle (holotype) C lateral view of female anterior region showing amphids (arrow) and cephalic setae (22 YTCD 6 - 2 - 1) D-F lateral view of male posterior body showing spicules, precloacal supplements, and gubernaculum (holotype). Scale bars: 20 µm." figureDoi="10.3897/zookeys.1159.100908.figure3" httpUri="https://binary.pensoft.net/fig/842396" pageId="0" pageNumber="121">, 3</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="diagnosis">
<paragraph pageId="0" pageNumber="121">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="121">
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov. is characterized by its medium-sized body, finely striate cuticle with punctuations, buccal cavity with three equally sized teeth, absent ocelli, four cephalic setae 6-8
<normalizedToken originalValue="μm">μm</normalizedToken>
long, oval amphidial fovea level with cephalic setae, curved spicules with tapered distal end, boat-shaped gubernaculums, five or six cup-shaped precloacal supplements, and a conical tail with a short spinneret.
</paragraph>
<caption doi="10.3897/zookeys.1159.100908.figure2" httpUri="https://binary.pensoft.net/fig/842395" pageId="0" pageNumber="121" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="121">
<emphasis bold="true" pageId="0" pageNumber="121">Figure 2.</emphasis>
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="121">A</emphasis>
lateral view of male anterior region showing buccal cavity and pharyngeal region (holotype)
<emphasis bold="true" pageId="0" pageNumber="121">B</emphasis>
lateral view of male anterior region showing buccal cavity (holotype)
<emphasis bold="true" pageId="0" pageNumber="121">C</emphasis>
lateral view of male anterior region showing cuticle and amphids (holotype)
<emphasis bold="true" pageId="0" pageNumber="121">D</emphasis>
lateral view of male whole body (holotype)
<emphasis bold="true" pageId="0" pageNumber="121">E</emphasis>
lateral view of female anterior body showing buccal cavity and pharyngeal region (22YTCD6-2-1)
<emphasis bold="true" pageId="0" pageNumber="121">F</emphasis>
lateral view of female entire body showing vulva (22YTCD6-2-1)
<emphasis bold="true" pageId="0" pageNumber="121">G</emphasis>
lateral view of female posterior body (22YTCD6-2-1)
<emphasis bold="true" pageId="0" pageNumber="121">H</emphasis>
lateral view of male posterior body, showing precloacal supplements and tail (holotype)
<emphasis bold="true" pageId="0" pageNumber="121">I</emphasis>
lateral view of spicules and gubernaculums. Scale bars: 20
<normalizedToken originalValue="µm">µm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="121">A-C, E</emphasis>
); 50
<normalizedToken originalValue="µm">µm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="121">D, F</emphasis>
); 30
<normalizedToken originalValue="µm">µm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="121">G, H</emphasis>
).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="materials_examined">
<paragraph pageId="0" pageNumber="121">Material examined.</paragraph>
<paragraph pageId="0" pageNumber="121">
<materialsCitation collectingDate="2023-01-01" collectingDateMax="2023-12-31" collectingDateMin="2023-01-01" county="Chinese Academy of Sciences" location="Type" municipality="Institute of Oceanology" specimenCount="two" specimenCount-female="1" typeStatus="Holotype">
Four males and
<specimenCount type="female">two females</specimenCount>
were measured and studied.
<emphasis bold="true" italics="true" pageId="0" pageNumber="121">
<typeStatus>Holotype</typeStatus>
</emphasis>
: m#1 on slide 22YTCD6-2-17;
<emphasis bold="true" italics="true" pageId="0" pageNumber="121">
<typeStatus>paratypes</typeStatus>
</emphasis>
: m#2 on 22YTCD6-2-15, m#3 on 22YTCD6-2-18, m#4 on 22YTCD6-2-11, f#1 on 22YTCD6-2-1, and f#2 on 22YTCD6-2-18.
<location LSID="urn:lsid:plazi:treatment:6F69C689BFA25228820E3D855EA57960:01D20E4DBFD840435646C1652E8D8794" county="Chinese Academy of Sciences" municipality="Institute of Oceanology" name="Type">Type</location>
specimens were deposited in the
<collectingMunicipality>Institute of Oceanology</collectingMunicipality>
,
<collectingCounty>Chinese Academy of Sciences</collectingCounty>
, Qingdao.
</materialsCitation>
</paragraph>
<caption doi="10.3897/zookeys.1159.100908.figure3" httpUri="https://binary.pensoft.net/fig/842396" pageId="0" pageNumber="121" start="Figure 3" startId="F3">
<paragraph pageId="0" pageNumber="121">
<emphasis bold="true" pageId="0" pageNumber="121">Figure 3.</emphasis>
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov.
<emphasis bold="true" pageId="0" pageNumber="121">A</emphasis>
lateral view of male anterior region showing buccal cavity and teeth (arrow) (
<typeStatus>holotype</typeStatus>
)
<emphasis bold="true" pageId="0" pageNumber="121">B</emphasis>
lateral view of male anterior region showing cuticle (
<typeStatus>holotype</typeStatus>
)
<emphasis bold="true" pageId="0" pageNumber="121">C</emphasis>
lateral view of female anterior region showing amphids (arrow) and cephalic setae (22YTCD6-2-1)
<emphasis bold="true" pageId="0" pageNumber="121">D-F</emphasis>
lateral view of male posterior body showing spicules, precloacal supplements, and gubernaculum (
<typeStatus>holotype</typeStatus>
). Scale bars: 20
<normalizedToken originalValue="µm">µm</normalizedToken>
.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="description">
<paragraph pageId="0" pageNumber="121">Measurements.</paragraph>
<paragraph pageId="0" pageNumber="121">
Detailed measurements information of individual specimens are shown in the Table
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Measurements of Chromadorina communis sp. nov. (in µm except for ratios)." httpUri="http://table.plazi.org/id/19918DD15E01FCAA1B12B178BACBB2F6" pageId="0" pageNumber="121" tableUuid="19918DD15E01FCAA1B12B178BACBB2F6">1</tableCitation>
.
</paragraph>
<caption ID-Table-UUID="19918DD15E01FCAA1B12B178BACBB2F6" httpUri="http://table.plazi.org/id/19918DD15E01FCAA1B12B178BACBB2F6" pageId="0" pageNumber="121" start="Table 1" startId="T1">
<paragraph pageId="0" pageNumber="121">
<emphasis bold="true" pageId="0" pageNumber="121">Table 1.</emphasis>
Measurements of
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov. (in
<normalizedToken originalValue="µm">µm</normalizedToken>
except for ratios).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="121">
<table pageId="0" pageNumber="121">
<tr pageId="0" pageNumber="121">
<th colspan="1" pageId="0" pageNumber="121" rowspan="2">Characters</th>
<th colspan="1" pageId="0" pageNumber="121" rowspan="1">Holotype</th>
<th colspan="1" pageId="0" pageNumber="121" rowspan="1">Paratypes</th>
<th colspan="1" pageId="0" pageNumber="121" rowspan="1">Paratypes</th>
</tr>
<tr pageId="0" pageNumber="121">
<th colspan="1" pageId="0" pageNumber="121" rowspan="1">male</th>
<th colspan="1" pageId="0" pageNumber="121" rowspan="1">
males (
<emphasis italics="true" pageId="0" pageNumber="121">n</emphasis>
= 3)
</th>
<th colspan="1" pageId="0" pageNumber="121" rowspan="1">
females (
<emphasis italics="true" pageId="0" pageNumber="121">n</emphasis>
= 2)
</th>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Total body length</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">711</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
741.0
<normalizedToken originalValue="±">+/-</normalizedToken>
73.6 (696-851)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
753.5
<normalizedToken originalValue="±">+/-</normalizedToken>
47.4 (720, 787)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Maximum body diameter</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">32</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
27.8
<normalizedToken originalValue="±">+/-</normalizedToken>
2.9 (26-32)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
31.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (31, 32)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Head diameter</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">11</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
10.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.6 (10-11)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
10.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (10, 11)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Length of cephalic setae</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">8</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
6.5
<normalizedToken originalValue="±">+/-</normalizedToken>
1.0 (6-8)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
6.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (6, 7)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Diameter of amphidial fovea</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">5</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
4.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.6 (4-5)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
5.0
<normalizedToken originalValue="±">+/-</normalizedToken>
0.0 (5, 5)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Amphidial fovea*</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">2</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
2.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.6 (2-3)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
2.0
<normalizedToken originalValue="±">+/-</normalizedToken>
0.0 (2, 2)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Nerve ring*</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">71</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
71.5
<normalizedToken originalValue="±">+/-</normalizedToken>
4.7 (67-78)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
72.0
<normalizedToken originalValue="±">+/-</normalizedToken>
0.0 (72, 72)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Body diameter at nerve ring</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">24</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
21.8
<normalizedToken originalValue="±">+/-</normalizedToken>
1.5 (21-24)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
21.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (21, 22)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Pharynx length</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">119</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
122.5
<normalizedToken originalValue="±">+/-</normalizedToken>
5.1 (118-129)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
125.5
<normalizedToken originalValue="±">+/-</normalizedToken>
4.9 (122, 129)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Pharynx bulb length</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">26</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
24.8
<normalizedToken originalValue="±">+/-</normalizedToken>
1.5 (23-26)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
27.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (27, 28)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Body diameter at the base of pharynx</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">28</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
24.5
<normalizedToken originalValue="±">+/-</normalizedToken>
2.4 (23-28)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
25.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (25, 26)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Anal body diameter</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">22</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
22.0
<normalizedToken originalValue="±">+/-</normalizedToken>
1.4 (21-24)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
17.5
<normalizedToken originalValue="±">+/-</normalizedToken>
2.1 (16, 19)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Spicules length along arc</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">28</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
27.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.6 (27-28)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Gubernaculum length</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">17</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
17.5
<normalizedToken originalValue="±">+/-</normalizedToken>
1.3 (16-19)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Vulva*</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
360.0
<normalizedToken originalValue="±">+/-</normalizedToken>
11.3 (352, 368)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Body diameter at vulva</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
31.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.7 (31, 32)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">V%</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
47.9
<normalizedToken originalValue="±">+/-</normalizedToken>
1.5 (46.8, 48.9)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Precloacal supplements</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">5</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
5.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.6 (5-6)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">-</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">Tail length</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">89</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
92.0
<normalizedToken originalValue="±">+/-</normalizedToken>
5.7 (87-100)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
115.5
<normalizedToken originalValue="±">+/-</normalizedToken>
12.0 (107, 124)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">a</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">22.2</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
26.9
<normalizedToken originalValue="±">+/-</normalizedToken>
3.8 (22.2-27.1)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
23.9
<normalizedToken originalValue="±">+/-</normalizedToken>
1.0 (23.2, 24.6)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">b</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">6.0</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
6.1
<normalizedToken originalValue="±">+/-</normalizedToken>
0.4 (5.6-6.6)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
6.0
<normalizedToken originalValue="±">+/-</normalizedToken>
0.1 (5.9, 6.1)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">c</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">8.0</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
8.1
<normalizedToken originalValue="±">+/-</normalizedToken>
0.3 (7.7-8.5)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
6.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.3 (6.3, 6.7)
</td>
</tr>
<tr pageId="0" pageNumber="121">
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
<normalizedToken originalValue="c">c'</normalizedToken>
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">4.0</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
4.2
<normalizedToken originalValue="±">+/-</normalizedToken>
0.2 (4.0-4.4)
</td>
<td colspan="1" pageId="0" pageNumber="121" rowspan="1">
6.6
<normalizedToken originalValue="±">+/-</normalizedToken>
0.1 (6.5, 6.7)
</td>
</tr>
</table>
</paragraph>
<paragraph pageId="0" pageNumber="121">
<tableNote pageId="0" pageNumber="121">
Abbreviations are as follows: a = body length/maximum body diameter; b = body length/pharynx length; c = body length/tail length;
<normalizedToken originalValue="c">c'</normalizedToken>
= tail length/anal body diameter; V% = position of vulva from anterior body end expressed as a percentage of total body length. *Distance from anterior body end.
</tableNote>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="description">
<paragraph pageId="0" pageNumber="121">Description.</paragraph>
<paragraph pageId="0" pageNumber="121">
<emphasis bold="true" pageId="0" pageNumber="121">Males.</emphasis>
Body cylindrical and medium-sized. Inner and outer cephalic setae inconspicuous. Four cephalic setae 6-8
<normalizedToken originalValue="μm">μm</normalizedToken>
in length (0.55-0.73 head diameter long), two pairs of sublateral cervical setae (4-5
<normalizedToken originalValue="μm">μm</normalizedToken>
long) present. Somatic setae (3-4
<normalizedToken originalValue="μm">μm</normalizedToken>
long) scarcely present in pharynx and on caudal region. Cuticle faintly striate, with homogeneous punctuations without longitudinal differentiation. Ocelli absent. Amphidial fovea oval, level with cephalic setae, in some specimens difficult to observe. Buccal cavity slightly cuticularized and funnel-shaped, with three equally sized, solid teeth. Pharynx cylindrical, with posterior end widened into obvious bulb (20.1-21.8% of pharynx length). Nerve ring slightly posterior to middle pharynx region (54-63% of pharynx length). Secretory-excretory system pore on anterior end of body (3-4
<normalizedToken originalValue="μm">μm</normalizedToken>
from anterior end).
</paragraph>
<paragraph pageId="0" pageNumber="121">
Reproductive system monorchic, with anterior testis outstretched, located to right of intestine. Spicules paired, curved, 1.2-1.3 cloacal body diameters long; proximal end slightly cephalate and distal end tapered. Gubernaculum simple, boat-shaped, parallel to the distal end of spicules. Five or six cup-shaped precloacal supplements, 12
<normalizedToken originalValue="μm">μm</normalizedToken>
from cloacal opening and 12-16
<normalizedToken originalValue="μm">μm</normalizedToken>
apart. Tail conical, with short spinneret, with three caudal glands in line.
</paragraph>
<paragraph pageId="0" pageNumber="121">
<emphasis bold="true" pageId="0" pageNumber="121">Females.</emphasis>
Similar to males in most characteristics. Reproductive system didelphic and amphidelphic, with reflexed ovaries. Anterior ovary to right of intestine and posterior ovary to left of intestine. Vulva slightly anterior to mid-body. Vagina short and sclerotized.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="type locality">
<paragraph pageId="0" pageNumber="121">Type locality and habitat.</paragraph>
<paragraph pageId="0" pageNumber="121">
Changdao Island, Shandong Province, China,
<geoCoordinate degrees="37" direction="north" minutes="57" orientation="latitude" precision="925" value="37.95">37°57'N</geoCoordinate>
,
<geoCoordinate degrees="120" direction="east" minutes="43" orientation="longitude" precision="925" value="120.71667">120°43'E</geoCoordinate>
, at the confluence of the Yellow and the Bohai seas. Salinity 28.1‰
<normalizedToken originalValue="±">+/-</normalizedToken>
0.36.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="distribution">
<paragraph pageId="0" pageNumber="121">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="121">
Occurred on rock surfaces with
<taxonomicName authorityName="Linnaeus" authorityYear="1753" class="Ulvophyceae" family="Ulvaceae" genus="Ulva" kingdom="Plantae" lsidName="Ulva lactuca" order="Ulvales" pageId="0" pageNumber="121" phylum="Chlorophyta" rank="species" species="lactuca">
<emphasis italics="true" pageId="0" pageNumber="121">Ulva lactuca</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="U. prolifera" pageId="0" pageNumber="121" rank="species" species="prolifera">
<emphasis italics="true" pageId="0" pageNumber="121">U. prolifera</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="etymology">
<paragraph pageId="0" pageNumber="121">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="121">
Latin,
<emphasis italics="true" pageId="0" pageNumber="121">communis</emphasis>
,
<normalizedToken originalValue="“common”">&quot;common&quot;</normalizedToken>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="121" type="differential diagnosis">
<paragraph pageId="0" pageNumber="121">Differential diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="121">
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov. is similar to the cultured species
<taxonomicName class="Adenophorea" kingdom="Animalia" lsidName="C. hirommi" order="Desmodorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="hirommi">
<emphasis italics="true" pageId="0" pageNumber="121">C. hirommi</emphasis>
</taxonomicName>
Kito &amp; Nakamura, 2001 in body length, length of cephalic setae, and numbers of precloacal supplements, but it differs in tooth shape (three equally sized teeth vs dorsal tooth large and subventral teeth small), absence of ocelli (brownish pigment present in
<taxonomicName class="Adenophorea" kingdom="Animalia" lsidName="C. hirommi" order="Desmodorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="hirommi">
<emphasis italics="true" pageId="0" pageNumber="121">C. hirommi</emphasis>
</taxonomicName>
), position of excretory pore (0.3 head diameter from anterior body end vs 1.8 head diameter from anterior body end), spicule length and shape (27-28
<normalizedToken originalValue="μm">μm</normalizedToken>
, distal end tapered vs 22-25
<normalizedToken originalValue="μm">μm</normalizedToken>
, distal end blunt and bifurcate), and gubernaculum shape (slightly cuticularized and boat-shaped vs well cuticularized with wavy dorsal fringe, distal parts of lateral pieces distinct and directed ventrad).
</paragraph>
<paragraph pageId="0" pageNumber="121">
Eleven sequences of
<taxonomicName class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina</emphasis>
</taxonomicName>
are included in the phylogenetic analysis, but only three species (
<taxonomicName class="Adenophorea" kingdom="Animalia" lsidName="C. bioculata" order="Desmodorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="bioculata">
<emphasis italics="true" pageId="0" pageNumber="121">C. bioculata</emphasis>
</taxonomicName>
,
<taxonomicName class="Adenophorea" kingdom="Animalia" lsidName="C. germanica" order="Desmodorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="germanica">
<emphasis italics="true" pageId="0" pageNumber="121">C. germanica</emphasis>
</taxonomicName>
, and
<taxonomicName class="Adenophorea" kingdom="Animalia" lsidName="C. communis" order="Desmodorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">C. communis</emphasis>
</taxonomicName>
sp. nov.) are identified to species, and
<taxonomicName class="Adenophorea" kingdom="Animalia" lsidName="C. bioculata" order="Desmodorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="bioculata">
<emphasis italics="true" pageId="0" pageNumber="121">C. bioculata</emphasis>
</taxonomicName>
was found in freshwater.
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov. shows a close relationship with
<taxonomicName class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina</emphasis>
</taxonomicName>
sp. (KJ636255), but it differs by 3.1% (52 in 1678 bp, including three gaps).
<taxonomicName authorityName="Guo &amp; Wang &amp; Li &amp; Wang" authorityYear="2023" class="Chromadorea" family="Chromadoridae" genus="Chromadorina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chromadorina communis" order="Chromadorida" pageId="0" pageNumber="121" phylum="Nematoda" rank="species" species="communis">
<emphasis italics="true" pageId="0" pageNumber="121">Chromadorina communis</emphasis>
</taxonomicName>
sp. nov. is supported as a new species by both phylogenetic and morphological analyses.
</paragraph>
</subSubSection>
</treatment>
</document>