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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.996.54602" ID-GBIF-Dataset="282891f3-a011-4013-87e6-afc385faac5a" ID-PMC="PMC7710686" ID-Pensoft-Pub="1313-2970-996-1" ID-Pensoft-UUID="CDEA9CBD38CE535CB2E7BC97AA053504" ID-PubMed="33312043" ID-ZooBank="8315A0E8D820454CB2AA5C6B5D003D86" ModsDocID="1313-2970-996-1" checkinTime="1606312756766" checkinUser="pensoft" docAuthor="Do, Thinh Dinh, Jung, Dae-Wui, Kil, Hyun-Jong &amp; Kim, Chang-Bae" docDate="2020" docId="A5DEA3EDF6685D0B85087C0E6D448F98" docLanguage="en" docName="ZooKeys 996: 1-18" docOrigin="ZooKeys 996" docSource="http://dx.doi.org/10.3897/zookeys.996.54602" docTitle="Cadlina koreana Do &amp; Jung &amp; Kil &amp; Kim 2020, sp. nov." docType="treatment" docUuid="BDAF5119-92FB-499A-BD02-63EB7077ABED" docUuidSource="ZooBank" docVersion="4" id="CDEA9CBD38CE535CB2E7BC97AA053504" lastPageNumber="1" masterDocId="CDEA9CBD38CE535CB2E7BC97AA053504" masterDocTitle="A report of a new species and new record of Cadlina (Nudibranchia, Cadlinidae) from South Korea" masterLastPageNumber="18" masterPageNumber="1" pageNumber="1" updateTime="1668169945094" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>A report of a new species and new record of Cadlina (Nudibranchia, Cadlinidae) from South Korea</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Do, Thinh Dinh</mods:namePart>
<mods:affiliation>Department of Biotechnology, Sangmyung University, Seoul 03016, South Korea</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Jung, Dae-Wui</mods:namePart>
<mods:affiliation>Department of Biotechnology, Sangmyung University, Seoul 03016, South Korea</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kil, Hyun-Jong</mods:namePart>
<mods:affiliation>Genetic Resources Information Center, National Institute of Biological Resources, Incheon 22689, South Korea</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kim, Chang-Bae</mods:namePart>
<mods:affiliation>Department of Biotechnology, Sangmyung University, Seoul 03016, South Korea</mods:affiliation>
<mods:nameIdentifier type="email">evodevo@smu.ac.kr</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>2020</mods:date>
<mods:detail type="volume">
<mods:number>996</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>18</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.996.54602</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.996.54602</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-996-1</mods:identifier>
<mods:identifier type="ZooBank">8315A0E8D820454CB2AA5C6B5D003D86</mods:identifier>
<mods:identifier type="Pensoft-UUID">CDEA9CBD38CE535CB2E7BC97AA053504</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="170515910" LSID="urn:lsid:zoobank.org:act:BDAF5119-92FB-499A-BD02-63EB7077ABED" httpUri="http://treatment.plazi.org/id/A5DEA3EDF6685D0B85087C0E6D448F98" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="A5DEA3ED-F668-5D0B-8508-7C0E6D448F98" authority="Do &amp; Jung &amp; Kil &amp; Kim, 2020" authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana" status="sp. nov.">Cadlina koreana</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">Figures 1</figureCitation>
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Reproductive systems of Cadlina species A Cadlina koreana sp. nov. B Cadlina umiushi C Cadlina japonica. Abbreviations: a, ampulla; bc, bursa copulatrix; fgm, female gland mass; rs, receptaculum seminis; pr, prostate; sv, seminal vesicle; ud, uterine duct; v, vaginal duct; vd, vas deferens. Scale bars: 0.5 mm (A, B); 2 mm (C)." figureDoi="10.3897/zookeys.996.54602.figure4" httpUri="https://binary.pensoft.net/fig/478661" pageId="0" pageNumber="1">, 4A</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="type material">
<paragraph pageId="0" pageNumber="1">Type material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Holotype</emphasis>
.
</emphasis>
NIBRIV0000865970; South Korea, Gangwon-do, Goseong-gun, Jugwang-myeon, Munamjin-ri;
<geoCoordinate degrees="38" direction="north" minutes="18" orientation="latitude" precision="1" seconds="14.75" value="38.304096">38°18'14.75&quot;N</geoCoordinate>
,
<geoCoordinate degrees="128" direction="east" minutes="34" orientation="longitude" precision="1" seconds="1.05" value="128.56696">128°34'1.05&quot;E</geoCoordinate>
; collected on 02 June 2013 (COI GenBank number: MT420429).
<emphasis bold="true" pageId="0" pageNumber="1">
<emphasis italics="true" pageId="0" pageNumber="1">Paratype</emphasis>
.
</emphasis>
NIBRIV0000865971; South Korea, Gangwon-do, Goseong-gun, Jugwang-myeon, Munamjin-ri;
<geoCoordinate degrees="38" direction="north" minutes="18" orientation="latitude" precision="1" seconds="14.75" value="38.304096">38°18'14.75&quot;N</geoCoordinate>
,
<geoCoordinate degrees="128" direction="east" minutes="34" orientation="longitude" precision="1" seconds="1.05" value="128.56696">128°34'1.05&quot;E</geoCoordinate>
; collected on 02 June 2013 (COI GenBank number: MT420430).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Other material.</paragraph>
<paragraph pageId="0" pageNumber="1">
Voucher: SMU00051; South Korea, Gangwon-do, Goseong-gun, Jugwang-myeon, Munamjin-ri;
<geoCoordinate degrees="38" direction="north" minutes="18" orientation="latitude" precision="1" seconds="14.75" value="38.304096">38°18'14.75&quot;N</geoCoordinate>
,
<geoCoordinate degrees="128" direction="east" minutes="34" orientation="longitude" precision="1" seconds="1.05" value="128.56696">128°34'1.05&quot;E</geoCoordinate>
; collected on 02 June 2013 (COI GenBank number: MT420431).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="diagnosis">
<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="1">
Ground color translucent white (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1A</figureCitation>
). Rhinophores and gills opaque white to translucent yellow. Entire dorsum covered by small rounded tubercles with white coloration. Radula formula 57
<normalizedToken originalValue="×">x</normalizedToken>
23.1.23. Rachidian tooth rectangular with four main sharp cusps (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1B</figureCitation>
). Innermost lateral teeth massive, wide base; cusp strong, slightly curved; two inner denticles and three to four outer denticles (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1C</figureCitation>
). Outer lateral teeth hamate, well-defined denticles (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1D</figureCitation>
).
</paragraph>
<caption doi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
body; Radula
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
rachidian teeth
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
central and lateral region
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
outer lateral region. Scale bars: 2 mm (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
); 10
<normalizedToken originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
); 50
<normalizedToken originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
); 20
<normalizedToken originalValue="μm">μm</normalizedToken>
(
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">
Body elongated ovate; body lengths 10.3 mm (holotype), 14 mm (paratype), and 9 mm (additional specimen). Ground color translucent white (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1A</figureCitation>
). Dorsum broad in front and posteriorly. Mantle broad and wider than foot; thin at the edge. Numerous white specks present at mantle edge, lacking a yellow marginal band. Dorsum covered with numerous small white tubercles. Rhinophores opaque white to translucent yellow; clavus lamellate; cylindrical stalk smooth. Rhinophoral sheath smooth. Gills opaque white to yellow, six multi-pinnate branchial leaves, retractable into gill cavity. Gill sheath bears small nodules. Oral veil forms triangular, lateral sides. Foot anteriorly rounded and thickened. Radula formula: 57
<normalizedToken originalValue="×">x</normalizedToken>
23.1.23. Rachidian tooth rectangular with four sharp denticles; two central denticles slightly longer than two lateral denticles (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1B</figureCitation>
). Innermost lateral tooth massive with one large, slightly curved cusp; two short, inner denticles; and three to four outer denticles. Second lateral tooth with one cusp, no inner denticle and four or five outer denticles. Middle lateral tooth hamate with one large cusp and up to seven denticles (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1C</figureCitation>
). Outer lateral teeth hamate, comb-shaped with 5-7 clearly visible denticles (Fig.
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Cadlina koreana A body; Radula B rachidian teeth C central and lateral region D outer lateral region. Scale bars: 2 mm (A); 10 μm (B); 50 μm (C); 20 μm (D)." figureDoi="10.3897/zookeys.996.54602.figure1" httpUri="https://binary.pensoft.net/fig/478658" pageId="0" pageNumber="1">1D</figureCitation>
). Reproductive system triaulic (Fig.
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Reproductive systems of Cadlina species A Cadlina koreana sp. nov. B Cadlina umiushi C Cadlina japonica. Abbreviations: a, ampulla; bc, bursa copulatrix; fgm, female gland mass; rs, receptaculum seminis; pr, prostate; sv, seminal vesicle; ud, uterine duct; v, vaginal duct; vd, vas deferens. Scale bars: 0.5 mm (A, B); 2 mm (C)." figureDoi="10.3897/zookeys.996.54602.figure4" httpUri="https://binary.pensoft.net/fig/478661" pageId="0" pageNumber="1">4A</figureCitation>
). Ampulla moderate, convoluted, and connects with female gland and prostate. Prostate long and narrow. Seminal vesicle slightly more swollen than prostate. Vas deferens narrow, smooth, and distinct. Penis armed with spines. Vagina relatively narrow and connects with bursa copulatrix. Bursa copulatrix ovate and ca. 1.5
<normalizedToken originalValue="×">x</normalizedToken>
larger than receptaculum seminis. Uterine duct short and narrow, bifurcates into female gland and receptaculum seminis.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">
A comparison of
<taxonomicName class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina</emphasis>
</taxonomicName>
species recorded in the northwestern Pacific region is presented in Table
<tableCitation captionStart="Table 2" captionStartId="T2" captionText="Table 2. Morphological comparison among Cadlina species in the northwestern Pacific region." httpUri="http://table.plazi.org/id/D68DEEB13ACAD5181FCB3D35A1540522" pageId="0" pageNumber="1" tableUuid="D68DEEB13ACAD5181FCB3D35A1540522">2</tableCitation>
.
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
sp. nov. is most similar externally to
<taxonomicName lsidName="C. paninae" pageId="0" pageNumber="1" rank="species" species="paninae">
<emphasis italics="true" pageId="0" pageNumber="1">C. paninae</emphasis>
</taxonomicName>
, differing in color variation of the rhinophores and gills as well as the structure of the radula. In
<taxonomicName lsidName="C. paninae" pageId="0" pageNumber="1" rank="species" species="paninae">
<emphasis italics="true" pageId="0" pageNumber="1">C. paninae</emphasis>
</taxonomicName>
, the color of the rhinophores and gills are opaque white while in
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
, color of the rhinophores can vary from opaque white to translucent yellow and that of the gills can vary from opaque white to yellow.
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
also has fewer rows and fewer denticles on both the rachidian tooth and its lateral tooth compared to those of
<taxonomicName lsidName="C. paninae" pageId="0" pageNumber="1" rank="species" species="paninae">
<emphasis italics="true" pageId="0" pageNumber="1">C. paninae</emphasis>
</taxonomicName>
. In addition, the rachidian tooth of
<taxonomicName lsidName="C. paninae" pageId="0" pageNumber="1" rank="species" species="paninae">
<emphasis italics="true" pageId="0" pageNumber="1">C. paninae</emphasis>
</taxonomicName>
is often bifurcated at the tips while the rachidian tooth of
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
is not bifurcated at the tips.
</paragraph>
<caption ID-Table-UUID="D68DEEB13ACAD5181FCB3D35A1540522" httpUri="http://table.plazi.org/id/D68DEEB13ACAD5181FCB3D35A1540522" pageId="0" pageNumber="1" start="Table 2" startId="T2">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Table 2.</emphasis>
Morphological comparison among
<taxonomicName class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina</emphasis>
</taxonomicName>
species in the northwestern Pacific region.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
<table pageId="0" pageNumber="1">
<tr pageId="0" pageNumber="1">
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Species</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Locality</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Size</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Morphology</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Radular formula</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Rachidian tooth</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">First lateral teeth</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Mid-lateral teeth</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Outer lateral teeth</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Ampulla</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Vas deferens</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Vagina</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Bursa copulatrix and receptaculum seminis</th>
<th colspan="1" pageId="0" pageNumber="1" rowspan="1">Source of information</th>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Munamjin-ri, South Korea</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">9-14 mm</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Translucent white; dorsum covered with small white tubercles; small white specs present on mantle edge. No yellow marginal band</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
57
<normalizedToken originalValue="×">x</normalizedToken>
23.1.23
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Rectangular, hook-shaped, 2 longer central denticles, and 2 shorter lateral denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1 cusp, 2 short inner denticles, and 3-4 outer denticles.</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hamate, comb-shaped, up to 7 denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hamate, comb-shaped, 5-7 denticles.</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Moderate and convoluted</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long and narrow</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Relatively long and narrow</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
Ovate and ca. 1.5
<normalizedToken originalValue="×">x</normalizedToken>
larger than receptaculum seminis
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">This study</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName authorityName="Korshunova, Picton, Sanamyan &amp; Martynov" authorityYear="2015" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina umiushi" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina umiushi</emphasis>
</taxonomicName>
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Munamjin-ri, South Korea</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">8-9 mm</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">White background; numerous small yellow tubercles; yellow marginal band</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">55 x 16.1.16</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Trapezoid, hook-shaped, 2 central denticles, and 2 lateral denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1 cusp, 2 inner denticles, and 3 outer denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hamate, rather comb-shaped, 6-8 distinct outer denticles.</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hamate to straight, up to 10 inconspicuous denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long and convoluted</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Relatively short</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Relatively short and broad</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
Ovate and ca. 2
<normalizedToken originalValue="×">x</normalizedToken>
larger than receptaculum seminis
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">This study</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName authorityName="Baba" authorityYear="1937" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina japonica" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="japonica">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina japonica</emphasis>
</taxonomicName>
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Munamjin-ri and Yeonji-ri, South Korea</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">48-55 mm</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Yellowish with dark brown patches; small scattered yellow spots; yellow marginal band</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">88 x 71.1.71</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Elongate, 2-4 lobe-like denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1 bigger cusp, 3-4 inner denticles, and 4-6 outer denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hook-shaped, no inner denticle and 3-5 outer denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hook-shaped, bearing up to 6 denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Moderate and convoluted</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long, narrow and distinct</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Relatively short and narrow</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
Almost rectangular in shape, ca. 5
<normalizedToken originalValue="×">x</normalizedToken>
larger than receptaculum seminis
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">This study</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName authorityName="Korshunova, Picton, Sanamyan &amp; Martynov" authorityYear="2015" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina kamchatica" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="kamchatica">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina kamchatica</emphasis>
</taxonomicName>
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Kamchatka, Starichkov Island, Russia</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">37 mm</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Creamy to dark yellow/light brown; small, low rounded yellow tubercles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
82
<normalizedToken originalValue="×">x</normalizedToken>
35.1.35
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Moderately high, trapezoid, 5-6 denticles, 2 middle usually larger than outer ones</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1 cusp, 4-6 large inner denticles, 5-6 distinct outer denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hamate, comb-shaped, up to 17 distinct outer denticles only</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hamate reduced, up to 19 sharp denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long and convoluted</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Relatively short</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long and narrow</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
Pear-shaped, 2
<normalizedToken originalValue="×">x</normalizedToken>
larger than receptaculum seminis
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<bibRefCitation DOI="https://doi.org/10.1093/zoolinnean/zlz126" author="Korshunova, TA" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="1" pagination="1 - 66" refId="B13" refString="Korshunova, TA, Fletcher, K, Picton, B, Lundin, K, Kashio, S, Sanamyan, N, Sanamyan, K, Padula, V, Schroedl, M, Martynov, A, 2020. The Emperor's Cadlina, hidden diversity and gill cavity evolution: new insights for the taxonomy and phylogeny of dorid nudibranchs (Mollusca: Gastropoda). Zoological Journal of the Linnean Society 20: 1 - 66, DOI: https://doi.org/10.1093/zoolinnean/zlz126" title="The Emperor's Cadlina, hidden diversity and gill cavity evolution: new insights for the taxonomy and phylogeny of dorid nudibranchs (Mollusca: Gastropoda)." url="https://doi.org/10.1093/zoolinnean/zlz126" volume="20" year="2020">Korshunova et al. (2020)</bibRefCitation>
</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<taxonomicName authorityName="Korshunova, Fletcher, Picton, Lundin, Kashio, N.Sanamyan, K.Sanamyan, Padula, Schrödl &amp; Martynov" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina paninae" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="paninae">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina paninae</emphasis>
</taxonomicName>
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Matua Islands, Middle Kurile Islands, Russia</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">29 mm</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Opaque whitish, sometimes with some yellowish shadow; low indistinct tubercles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
90
<normalizedToken originalValue="×">x</normalizedToken>
38.1.38
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Low rectangular, 3-5 distinct cusps, often bifurcated at tips</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1 cusp, 2-3 inner denticles and 3-4 outer denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Elongate hook-shaped, up to 20 comb-shaped denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Hook-shaped, up to 20 comb-shaped denticles</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Relatively short and slightly convoluted</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long and narrow</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Long and narrow</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
Ovate, 1.5
<normalizedToken originalValue="×">x</normalizedToken>
larger than receptaculum seminis
</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">
<bibRefCitation DOI="https://doi.org/10.1093/zoolinnean/zlz126" author="Korshunova, TA" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="1" pagination="1 - 66" refId="B13" refString="Korshunova, TA, Fletcher, K, Picton, B, Lundin, K, Kashio, S, Sanamyan, N, Sanamyan, K, Padula, V, Schroedl, M, Martynov, A, 2020. The Emperor's Cadlina, hidden diversity and gill cavity evolution: new insights for the taxonomy and phylogeny of dorid nudibranchs (Mollusca: Gastropoda). Zoological Journal of the Linnean Society 20: 1 - 66, DOI: https://doi.org/10.1093/zoolinnean/zlz126" title="The Emperor's Cadlina, hidden diversity and gill cavity evolution: new insights for the taxonomy and phylogeny of dorid nudibranchs (Mollusca: Gastropoda)." url="https://doi.org/10.1093/zoolinnean/zlz126" volume="20" year="2020">Korshunova et al. (2020)</bibRefCitation>
</td>
</tr>
</table>
</paragraph>
<paragraph pageId="0" pageNumber="1">
The external morphology of
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
is relatively similar to
<taxonomicName lsidName="C. umiushi" pageId="0" pageNumber="1" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">C. umiushi</emphasis>
</taxonomicName>
, which also has small-sized tubercles on the dorsum. However, clear differences between these two species can be observed by comparing their coloration. The color pattern of
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
is white without yellow tubercles or a yellow marginal band. In contrast,
<taxonomicName lsidName="C. umiushi" pageId="0" pageNumber="1" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">C. umiushi</emphasis>
</taxonomicName>
is semi-transparent white with yellow tubercles and a yellow marginal band. The rachidian tooth of
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
is rectangular while it is trapezoid in
<taxonomicName lsidName="C. umiushi" pageId="0" pageNumber="1" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">C. umiushi</emphasis>
</taxonomicName>
. The inner denticles of the first lateral tooth of
<taxonomicName lsidName="C. umiushi" pageId="0" pageNumber="1" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">C. umiushi</emphasis>
</taxonomicName>
are half the length of the tooth body, but in
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
it is less than half the length of the tooth body. Moreover, the outer lateral teeth of
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
are hamate with clearly visible denticles. In contrast, the outer lateral teeth of
<taxonomicName lsidName="C. umiushi" pageId="0" pageNumber="1" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">C. umiushi</emphasis>
</taxonomicName>
are almost straight with inconspicuous denticles.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Baba" authorityYear="1937" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina japonica" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="japonica">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina japonica</emphasis>
</taxonomicName>
is distinguished from
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
sp. nov. by brownish patches on the dorsum and an elongate rachidian tooth with lobe-like denticles.
<taxonomicName authorityName="Korshunova, Picton, Sanamyan &amp; Martynov" authorityYear="2015" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina kamchatica" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="kamchatica">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina kamchatica</emphasis>
</taxonomicName>
clearly differs from
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
by its yellowish body color and the higher number of denticles on the rachidian tooth and lateral tooth. The common
<taxonomicName class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina</emphasis>
</taxonomicName>
species in the northeastern Pacific,
<taxonomicName lsidName="C. luteomarginata" pageId="0" pageNumber="1" rank="species" species="luteomarginata">
<emphasis italics="true" pageId="0" pageNumber="1">C. luteomarginata</emphasis>
</taxonomicName>
MacFarland, 1966, differs from
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
by yellow dots on the dorsum and a yellow rim to the mantle. The other species in this region,
<taxonomicName lsidName="C. flavomaculata" pageId="0" pageNumber="1" rank="species" species="flavomaculata">
<emphasis italics="true" pageId="0" pageNumber="1">C. flavomaculata</emphasis>
</taxonomicName>
MacFarland, 1905, also has yellow dots on the dorsum that are not present in
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
. The color of
<taxonomicName lsidName="C. modesta" pageId="0" pageNumber="1" rank="species" species="modesta">
<emphasis italics="true" pageId="0" pageNumber="1">C. modesta</emphasis>
</taxonomicName>
MacFarland, 1966 is light yellowish to light brown while it is translucent white in
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
. Compared to
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
, three
<taxonomicName class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina</emphasis>
</taxonomicName>
species recently described by
<bibRefCitation DOI="https://doi.org/10.1093/zoolinnean/zlz126" author="Korshunova, TA" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="1" pagination="1 - 66" refId="B13" refString="Korshunova, TA, Fletcher, K, Picton, B, Lundin, K, Kashio, S, Sanamyan, N, Sanamyan, K, Padula, V, Schroedl, M, Martynov, A, 2020. The Emperor's Cadlina, hidden diversity and gill cavity evolution: new insights for the taxonomy and phylogeny of dorid nudibranchs (Mollusca: Gastropoda). Zoological Journal of the Linnean Society 20: 1 - 66, DOI: https://doi.org/10.1093/zoolinnean/zlz126" title="The Emperor's Cadlina, hidden diversity and gill cavity evolution: new insights for the taxonomy and phylogeny of dorid nudibranchs (Mollusca: Gastropoda)." url="https://doi.org/10.1093/zoolinnean/zlz126" volume="20" year="2020">Korshunova et al. (2020)</bibRefCitation>
,
<taxonomicName lsidName="C. klasmalmbergi" pageId="0" pageNumber="1" rank="species" species="klasmalmbergi">
<emphasis italics="true" pageId="0" pageNumber="1">C. klasmalmbergi</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="C. jannanicholsae" pageId="0" pageNumber="1" rank="species" species="jannanicholsae">
<emphasis italics="true" pageId="0" pageNumber="1">C. jannanicholsae</emphasis>
</taxonomicName>
, and
<taxonomicName lsidName="C. sylviaearleae" pageId="0" pageNumber="1" rank="species" species="sylviaearleae">
<emphasis italics="true" pageId="0" pageNumber="1">C. sylviaearleae</emphasis>
</taxonomicName>
have yellow mantle bands and yellow tubercles. In
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
, the yellow mantle band is absent and the color of the tubercles is white. The maximum intraspecific distances in
<taxonomicName lsidName="C. koreana" pageId="0" pageNumber="1" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">C. koreana</emphasis>
</taxonomicName>
are 0% for the COI marker and 0.23% for the 16S rRNA marker (Suppl. material 1: Table S3). The lowest COI interspecific distance of 5.78% is found between
<taxonomicName lsidName="C. koreana" pageId="0" pageNumber="1" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">C. koreana</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="C. umiushi" pageId="0" pageNumber="1" rank="species" species="umiushi">
<emphasis italics="true" pageId="0" pageNumber="1">C. umiushi</emphasis>
</taxonomicName>
. The lowest 16S rRNA interspecific distance of 4.56% is found between
<taxonomicName lsidName="C. koreana" pageId="0" pageNumber="1" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">C. koreana</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="C. paninae" pageId="0" pageNumber="1" rank="species" species="paninae">
<emphasis italics="true" pageId="0" pageNumber="1">C. paninae</emphasis>
</taxonomicName>
.
</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 after the country of its type locality.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="distribution">
<paragraph pageId="0" pageNumber="1">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Do &amp; Jung &amp; Kil &amp; Kim" authorityYear="2020" class="Gastropoda" family="Cadlinidae" genus="Cadlina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cadlina koreana" order="Nudibranchia" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="koreana">
<emphasis italics="true" pageId="0" pageNumber="1">Cadlina koreana</emphasis>
</taxonomicName>
sp. nov. is currently known only from Munamjin-ri, South Korea.
</paragraph>
</subSubSection>
</treatment>
</document>