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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.893.46923" ID-GBIF-Dataset="c941edd5-de40-4cbf-aa06-1baac5d36f1c" ID-PMC="PMC6901611" ID-Pensoft-Pub="1313-2970-893-91" ID-Pensoft-UUID="E8A0151ADE0F532CA16E0710F6F2BC50" ID-PubMed="31844401" ID-ZooBank="4E267EC6A94F4227ADF5700DC17F0D87" ModsDocID="1313-2970-893-91" checkinTime="1575325048369" checkinUser="pensoft" docAuthor="Ohtsuka, Susumu &amp; Boxshall, Geoffrey A." docDate="2019" docId="92683892B77C558DA1816F3E64493679" docLanguage="en" docName="ZooKeys 893: 91-113" docOrigin="ZooKeys 893" docSource="http://dx.doi.org/10.3897/zookeys.893.46923" docTitle="Caligus chinglonglini Ohtsuka &amp; Boxshall, 2019, sp. nov." docType="treatment" docUuid="41B191CB-B10D-4015-AC2D-B4407FDBE6D3" docUuidSource="ZooBank" docVersion="5" id="E8A0151ADE0F532CA16E0710F6F2BC50" lastPageNumber="91" masterDocId="E8A0151ADE0F532CA16E0710F6F2BC50" masterDocTitle="Two new species of the genus Caligus (Crustacea, Copepoda, Siphonostomatoida) from the Sea of Japan, with a note on the establishment of a new species group" masterLastPageNumber="113" masterPageNumber="91" pageNumber="91" updateTime="1668168167558" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Two new species of the genus Caligus (Crustacea, Copepoda, Siphonostomatoida) from the Sea of Japan, with a note on the establishment of a new species group</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ohtsuka, Susumu</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Boxshall, Geoffrey A.</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2019</mods:date>
<mods:detail type="volume">
<mods:number>893</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>91</mods:start>
<mods:end>113</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.893.46923</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.893.46923</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-893-91</mods:identifier>
<mods:identifier type="ZooBank">4E267EC6A94F4227ADF5700DC17F0D87</mods:identifier>
<mods:identifier type="Pensoft-UUID">E8A0151ADE0F532CA16E0710F6F2BC50</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="160612156" LSID="urn:lsid:zoobank.org:act:41B191CB-B10D-4015-AC2D-B4407FDBE6D3" httpUri="http://treatment.plazi.org/id/92683892B77C558DA1816F3E64493679" lastPageNumber="91" pageId="0" pageNumber="91">
<subSubSection pageId="0" pageNumber="91" type="nomenclature">
<paragraph pageId="0" pageNumber="91">
<taxonomicName LSID="92683892-B77C-558D-A181-6F3E64493679" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus chinglonglini" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="species" species="chinglonglini">Caligus chinglonglini</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="91">sp. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Figs 1</figureCitation>
,
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">2</figureCitation>
,
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Caligus chinglonglini sp. nov., adult male, holotype A terminal part of leg 4, bifurcate processes arrowed B colony of peritrich ciliates attached along posterior margin of maxilliped corpus C peritrich ciliates attached on posterior margin of maxilliped corpus. Scale bars: in mm." figureDoi="10.3897/zookeys.893.46923.figure3" httpUri="https://binary.pensoft.net/fig/361321" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure3">3</figureCitation>
<tableCitation captionStartId="T1" httpUri="http://table.plazi.org/id/668EC51B2C804C66CDE68A04360E158E" pageId="0" pageNumber="91" tableUuid="668EC51B2C804C66CDE68A04360E158E">, Table 1</tableCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="91" type="type material">
<paragraph pageId="0" pageNumber="91">Material examined and type.</paragraph>
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">
<emphasis italics="true" pageId="0" pageNumber="91">Holotype</emphasis>
.
</emphasis>
Japan • adult ♂; Ashibe Port, Iki Island, Nagasaki Prefecture (
<geoCoordinate degrees="33" direction="north" minutes="48.544" orientation="latitude" precision="1" value="33.809067">33°48.544'N</geoCoordinate>
,
<geoCoordinate degrees="129" direction="east" minutes="45.231" orientation="longitude" precision="1" value="129.75385">129°45.231'E</geoCoordinate>
); night, May 24, 2014; partly dissected and mounted on 1 slide, body in vial (NSMT-Cr 26753); S. Ohtsuka leg.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="91" type="description">
<paragraph pageId="0" pageNumber="91">Description.</paragraph>
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">
Male.
<emphasis italics="true" pageId="0" pageNumber="91">Body</emphasis>
</emphasis>
4.02 mm long. Cephalothorax (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1A</figureCitation>
) slightly longer than wide. Pediger 4 (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1A, B</figureCitation>
) incompletely fused to genital complex. Genital complex (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1A, B</figureCitation>
) about 1.1 times wider than long, about 1.2 times longer than abdominal somites combined, produced posterolaterally into 2 knobs representing leg 5 (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1C</figureCitation>
), armed with 1 and 2 setae. Paired genital opercula (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1C</figureCitation>
) representing leg 6, each bearing 2 minute unequal setae terminally. Abdomen 2-segmented, second somite ca. 1.7 times longer than first. Caudal ramus (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1B</figureCitation>
) furnished with row of fine setules along inner margin; setae II and III located close together subterminally; setae
<normalizedToken originalValue="IV–VI">IV-VI</normalizedToken>
well developed; seta VII minute, located at inner distal corner.
</paragraph>
<caption doi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" start="Figure 1" startId="F1">
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">Figure 1.</emphasis>
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus chinglonglini" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">Caligus chinglonglini</emphasis>
</taxonomicName>
sp. nov., adult male, holotype
<emphasis bold="true" pageId="0" pageNumber="91">A</emphasis>
habitus, dorsal view
<emphasis bold="true" pageId="0" pageNumber="91">B</emphasis>
postcephalothoracic trunk, dorsal view
<emphasis bold="true" pageId="0" pageNumber="91">C</emphasis>
leg 5 and gonopore on right side, ventral view
<emphasis bold="true" pageId="0" pageNumber="91">D</emphasis>
antennule, ventral view
<emphasis bold="true" pageId="0" pageNumber="91">E</emphasis>
antenna
<emphasis bold="true" pageId="0" pageNumber="91">F</emphasis>
postantennal process
<emphasis bold="true" pageId="0" pageNumber="91">G</emphasis>
mandible
<emphasis bold="true" pageId="0" pageNumber="91">H</emphasis>
maxillule
<emphasis bold="true" pageId="0" pageNumber="91">I</emphasis>
maxilla
<emphasis bold="true" pageId="0" pageNumber="91">J</emphasis>
maxilliped
<emphasis bold="true" pageId="0" pageNumber="91">K</emphasis>
middle process on myxal margin of maxilliped corpus
<emphasis bold="true" pageId="0" pageNumber="91">L</emphasis>
distal process on myxal margin of maxilliped corpus
<emphasis bold="true" pageId="0" pageNumber="91">M</emphasis>
subchela of maxilliped
<emphasis bold="true" pageId="0" pageNumber="91">N</emphasis>
sternal furca.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="91">
Antennule (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1D</figureCitation>
) 2-segmented; proximal segment with 26 setae, distal segment with 11 setae and 2 aesthetascs. Antenna (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1E</figureCitation>
) 3-segmented; proximal segment unarmed, with adhesion pad distally; middle segment massive, unarmed, with 2 adhesion pads at mid-length and 1 pad terminally; distal segment small, multi-layered flap with 2 small setae proximally. Postantennal process (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1F</figureCitation>
) moderately curved, with 2 bisensillate papillae proximally plus bisensillate papilla on adjacent ventral cephalothoracic surface. Mandible (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1G</figureCitation>
) with 11 teeth on margin subterminally. Maxillule (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1H</figureCitation>
) represented by anterior papilla with 1 thick and 2 fine setae and posterior dentiform process with rounded prominence subterminally. Maxilla (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1I</figureCitation>
) 2-segmented, lacertus (syncoxa) unarmed, brachium (basis) slender, with large hyaline membrane at terminal third, plus long
<taxonomicName lsidName="calamus" pageId="0" pageNumber="91" rank="species" species="calamus">calamus</taxonomicName>
and short cana apically. Maxilliped (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">
Figs 1
<normalizedToken originalValue="J–M">J-M</normalizedToken>
</figureCitation>
,
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Caligus chinglonglini sp. nov., adult male, holotype A terminal part of leg 4, bifurcate processes arrowed B colony of peritrich ciliates attached along posterior margin of maxilliped corpus C peritrich ciliates attached on posterior margin of maxilliped corpus. Scale bars: in mm." figureDoi="10.3897/zookeys.893.46923.figure3" httpUri="https://binary.pensoft.net/fig/361321" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure3">3B</figureCitation>
) heavily chitinized, 2-segmented; corpus (protopod) massive, with 3 unequal processes along myxal margin, proximal process low, middle process with multiple tips, distal process largest, with irregular, undulating distal margin; shaft (endopod) as long as and incompletely fused to claw to form subchela; barbel located on rounded inner basal process of claw. Sternal furca (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1N</figureCitation>
) with divergent tines originating close together, rounded at tip.
</paragraph>
<paragraph pageId="0" pageNumber="91">
Armature and elements of legs 1-4 as in Table
<tableCitation captionStartId="T1" httpUri="http://table.plazi.org/id/668EC51B2C804C66CDE68A04360E158E" pageId="0" pageNumber="91" tableUuid="668EC51B2C804C66CDE68A04360E158E">1</tableCitation>
.
<emphasis bold="true" italics="true" pageId="0" pageNumber="91">Leg 1</emphasis>
(
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Fig. 2A</figureCitation>
) with massive protopod bearing 1 inner and 1 outer small plumose setae plus bifid setule on outer margin; intercoxal sclerite slender, unornamented; endopod reduced to club-shaped process located near base of exopod; exopod 2-segmented, first segment with row of fine setules along inner margin and 1 naked seta at outer distal corner, second segment with 3 large plumose setae along inner (posterior) margin and 4 elements terminally, middle two of which each bearing accessory process.
<emphasis bold="true" italics="true" pageId="0" pageNumber="91">Leg 2</emphasis>
(
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">
Fig. 2
<normalizedToken originalValue="B–D">B-D</normalizedToken>
</figureCitation>
) with intercoxal sclerite ornamented with trapezoidal marginal membrane along posterior margin; coxa with large plumose seta at posterior corner and minute setule on anterior surface; basis ornamented with marginal membrane on both inner and outer edges, bearing 1 minute seta on knob at outer distal corner (
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Fig. 2C</figureCitation>
) plus setule near midpoint of inner margin; endopod 3-segmented, outer margins of second and third segments with dense patches of minute setules; exopod 3-segmented, first segment with long outer spine directed obliquely across surface of second segment, second segment with relatively short outer spine, third segment with small outer knob (arrowed in
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Fig. 2D</figureCitation>
), 1 reduced outer spine, 1 short terminal spine and 5 plumose setae increasing in size from apical to innermost.
<emphasis bold="true" italics="true" pageId="0" pageNumber="91">Leg 3</emphasis>
(
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">
Fig. 2
<normalizedToken originalValue="E–G">E-G</normalizedToken>
</figureCitation>
) apron (protopod) without surface processes, bearing well developed inner seta and 1 minute outer seta, plus 2 relatively long setules along posterior margin; outer basal margin of apron undulating; endopod 2-segmented, proximal segment small, with 1 long plumose seta; velum developed, hirsute along free posterior margin; second segment expanded along outer margin (
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Fig. 2F</figureCitation>
); exopod 3-segmented (
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Fig. 2G</figureCitation>
), proximal segment small, with slightly curved outer spine not reaching distal border of next segment, middle segment with 1 inner plumose and 1 outer naked seta, third segment with 3 spiniform setae increasing in size distally plus 4 inner setae.
</paragraph>
<caption doi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">Figure 2.</emphasis>
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus chinglonglini" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">Caligus chinglonglini</emphasis>
</taxonomicName>
sp. nov., adult male, holotype
<emphasis bold="true" pageId="0" pageNumber="91">A</emphasis>
leg 1
<emphasis bold="true" pageId="0" pageNumber="91">B</emphasis>
leg 2
<emphasis bold="true" pageId="0" pageNumber="91">C</emphasis>
outer seta on basis of leg 2
<emphasis bold="true" pageId="0" pageNumber="91">D</emphasis>
terminal part of exopod of leg 2, outer knob on segment 3 arrowed
<emphasis bold="true" pageId="0" pageNumber="91">E</emphasis>
leg 3
<emphasis bold="true" pageId="0" pageNumber="91">F</emphasis>
endopod of leg 3
<emphasis bold="true" pageId="0" pageNumber="91">G</emphasis>
exopod of leg 3
<emphasis bold="true" pageId="0" pageNumber="91">H</emphasis>
leg 4
<emphasis bold="true" pageId="0" pageNumber="91">I</emphasis>
terminal processes of leg 4.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" italics="true" pageId="0" pageNumber="91">Leg 4</emphasis>
(
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Figs 2H, I</figureCitation>
,
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Caligus chinglonglini sp. nov., adult male, holotype A terminal part of leg 4, bifurcate processes arrowed B colony of peritrich ciliates attached along posterior margin of maxilliped corpus C peritrich ciliates attached on posterior margin of maxilliped corpus. Scale bars: in mm." figureDoi="10.3897/zookeys.893.46923.figure3" httpUri="https://binary.pensoft.net/fig/361321" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure3">3A</figureCitation>
) with protopod bearing low outer prominence at mid-length and minute plumose seta at outer distal corner; exopod distinctly 2-segmented, first exopodal segment with long outer spine almost fused basally to segment and reaching more than half distance to origin of proximalmost outer spine on compound second segment; second segment with 1 terminal and 2 slender spines on distal margin plus lateral spine, plus 2 bifurcate processes terminally; each process complex, with 1 or 3 minute prominences basally (
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Caligus chinglonglini sp. nov., adult male, holotype A leg 1 B leg 2 C outer seta on basis of leg 2 D terminal part of exopod of leg 2, outer knob on segment 3 arrowed E leg 3 F endopod of leg 3 G exopod of leg 3 H leg 4 I terminal processes of leg 4." figureDoi="10.3897/zookeys.893.46923.figure2" httpUri="https://binary.pensoft.net/fig/361320" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure2">Fig. 2I</figureCitation>
).
</paragraph>
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" italics="true" pageId="0" pageNumber="91">Leg 5</emphasis>
(
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1C</figureCitation>
) represented by 2 small knobs, outer knob bearing protopodal seta, inner knob representing exopod, bearing 2 plumose setae terminally. Leg 6 (
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Caligus chinglonglini sp. nov., adult male, holotype A habitus, dorsal view B postcephalothoracic trunk, dorsal view C leg 5 and gonopore on right side, ventral view D antennule, ventral view E antenna F postantennal process G mandible H maxillule I maxilla J maxilliped K middle process on myxal margin of maxilliped corpus L distal process on myxal margin of maxilliped corpus M subchela of maxilliped N sternal furca." figureDoi="10.3897/zookeys.893.46923.figure1" httpUri="https://binary.pensoft.net/fig/361319" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure1">Fig. 1C</figureCitation>
) consisting of genital operculum, bearing 2 terminal minute setae.
</paragraph>
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">Female.</emphasis>
Unknown.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="91" type="remarks">
<paragraph pageId="0" pageNumber="91">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="91">
The new species is most closely related to
<taxonomicName lsidName="C. acanthopagri" pageId="0" pageNumber="91" rank="species" species="acanthopagri">
<emphasis italics="true" pageId="0" pageNumber="91">C. acanthopagri</emphasis>
</taxonomicName>
Ho, Lin &amp; Chen, 1994,
<taxonomicName lsidName="C. dieuzeidei" pageId="0" pageNumber="91" rank="species" species="dieuzeidei">
<emphasis italics="true" pageId="0" pageNumber="91">C. dieuzeidei</emphasis>
</taxonomicName>
sensu
<bibRefCitation DOI="https://doi.org/10.2331/suisan.20.268" author="Shiino, SM" journalOrPublisher="Bulletin of the Japanese Society of Scientific Fisheries" pageId="0" pageNumber="91" pagination="268 - 272" refId="B34" refString="Shiino, SM, 1954b. Record on Caligusdieuzeidei Brian newly found in Japan. Bulletin of the Japanese Society of Scientific Fisheries 20: 268 - 272" title="Record on Caligusdieuzeidei Brian newly found in Japan." url="https://doi.org/10.2331/suisan.20.268" volume="20" year="1954 b">Shiino (1954b)</bibRefCitation>
, and
<taxonomicName lsidName="C. latigenitalis" pageId="0" pageNumber="91" rank="species" species="latigenitalis">
<emphasis italics="true" pageId="0" pageNumber="91">C. latigenitalis</emphasis>
</taxonomicName>
Shiino, 1954 in general appearance and in the structure of the appendages and sternal furca. As
<bibRefCitation DOI="https://doi.org/10.1163/156854000505047" author="Izawa, K" journalOrPublisher="Crustaceana" pageId="0" pageNumber="91" pagination="995 - 1005" refId="B21" refString="Izawa, K, Choi, KH, 2000. Redescription of Caliguslatigenitalis Shiino, 1954 (Copepoda, Siphonostomatoida, Caligidae), parasitic on Japanese black sea bream, Acanthopagrusschlegeli (Bleeker, 1854). Crustaceana 73: 995 - 1005" title="Redescription of Caliguslatigenitalis Shiino, 1954 (Copepoda, Siphonostomatoida, Caligidae), parasitic on Japanese black sea bream, Acanthopagrusschlegeli (Bleeker, 1854)." url="https://doi.org/10.1163/156854000505047" volume="73" year="2000">Izawa and Choi (2000)</bibRefCitation>
and
<bibRefCitation author="Ho, JS" journalOrPublisher="The Sueichan Press, Keelung" pageId="0" pageNumber="91" refId="B19" refString="Ho, JS, Lin, CL, 2004b. Sea Lice of Taiwan (Copepoda: Siphonostomatoida: Caligidae). The Sueichan Press, Keelung" title="Sea Lice of Taiwan (Copepoda: Siphonostomatoida: Caligidae)." year="2004 b">Ho and Lin (2004b)</bibRefCitation>
suggested, the minor but most distinct difference can be found in the structure of the pectens of the second exopod segment of leg 4 among these three species. Those of
<taxonomicName lsidName="C. chinglonglini" pageId="0" pageNumber="91" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">C. chinglonglini</emphasis>
</taxonomicName>
sp. nov.,
<taxonomicName lsidName="C. dieuzeidei" pageId="0" pageNumber="91" rank="species" species="dieuzeidei">
<emphasis italics="true" pageId="0" pageNumber="91">C. dieuzeidei</emphasis>
</taxonomicName>
sensu
<bibRefCitation DOI="https://doi.org/10.2331/suisan.20.268" author="Shiino, SM" journalOrPublisher="Bulletin of the Japanese Society of Scientific Fisheries" pageId="0" pageNumber="91" pagination="268 - 272" refId="B34" refString="Shiino, SM, 1954b. Record on Caligusdieuzeidei Brian newly found in Japan. Bulletin of the Japanese Society of Scientific Fisheries 20: 268 - 272" title="Record on Caligusdieuzeidei Brian newly found in Japan." url="https://doi.org/10.2331/suisan.20.268" volume="20" year="1954 b">Shiino (1954b)</bibRefCitation>
(see Discussion), and
<taxonomicName lsidName="C. latigenitalis" pageId="0" pageNumber="91" rank="species" species="latigenitalis">
<emphasis italics="true" pageId="0" pageNumber="91">C. latigenitalis</emphasis>
</taxonomicName>
are sharply indented, whereas that of
<taxonomicName lsidName="C. acanthopagri" pageId="0" pageNumber="91" rank="species" species="acanthopagri">
<emphasis italics="true" pageId="0" pageNumber="91">C. acanthopagri</emphasis>
</taxonomicName>
is composed of a hyaline membrane. The former three species can be distinguished by the number and shape of dentate processes (divided into 3 or 5 prominences but not hand-like in
<taxonomicName lsidName="C. chinglonglini" pageId="0" pageNumber="91" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">C. chinglonglini</emphasis>
</taxonomicName>
; 3 or 4 and hand-like in
<taxonomicName lsidName="C. dieuzeidei" pageId="0" pageNumber="91" rank="species" species="dieuzeidei">
<emphasis italics="true" pageId="0" pageNumber="91">C. dieuzeidei</emphasis>
</taxonomicName>
sensu Shiino; 4 or 5 and hand-like in
<taxonomicName lsidName="C. latigenitalis" pageId="0" pageNumber="91" rank="species" species="latigenitalis">
<emphasis italics="true" pageId="0" pageNumber="91">C. latigenitalis</emphasis>
</taxonomicName>
). In addition, the shape and numbers of processes of the maxillipedal myxal area differ among the males of these three species. In
<taxonomicName lsidName="C. chinglonglini" pageId="0" pageNumber="91" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">C. chinglonglini</emphasis>
</taxonomicName>
sp. nov. and
<taxonomicName lsidName="C. latigenitalis" pageId="0" pageNumber="91" rank="species" species="latigenitalis">
<emphasis italics="true" pageId="0" pageNumber="91">C. latigenitalis</emphasis>
</taxonomicName>
, there are 3 processes arrayed along the myxal margin, but the middle process is furnished with serrated tips in the former but is rounded in the latter. In
<taxonomicName lsidName="C. dieuzeidei" pageId="0" pageNumber="91" rank="species" species="dieuzeidei">
<emphasis italics="true" pageId="0" pageNumber="91">C. dieuzeidei</emphasis>
</taxonomicName>
sensu
<bibRefCitation DOI="https://doi.org/10.2331/suisan.20.268" author="Shiino, SM" journalOrPublisher="Bulletin of the Japanese Society of Scientific Fisheries" pageId="0" pageNumber="91" pagination="268 - 272" refId="B34" refString="Shiino, SM, 1954b. Record on Caligusdieuzeidei Brian newly found in Japan. Bulletin of the Japanese Society of Scientific Fisheries 20: 268 - 272" title="Record on Caligusdieuzeidei Brian newly found in Japan." url="https://doi.org/10.2331/suisan.20.268" volume="20" year="1954 b">Shiino (1954b)</bibRefCitation>
, there are only two processes, one quadrangular and the other low triangular, present along the margin.
</paragraph>
<paragraph pageId="0" pageNumber="91">
Although the present new species is described on the basis of a single male, no other species belonging to the newly proposed
<taxonomicName lsidName="pseudorhombi" pageId="0" pageNumber="91" rank="species" species="pseudorhombi">
<emphasis italics="true" pageId="0" pageNumber="91">pseudorhombi</emphasis>
</taxonomicName>
species group (see Discussion) has so far been recorded from Japanese waters except for
<taxonomicName lsidName="C. latigenitalis" pageId="0" pageNumber="91" rank="species" species="latigenitalis">
<emphasis italics="true" pageId="0" pageNumber="91">C. latigenitalis</emphasis>
</taxonomicName>
(
<bibRefCitation author="Nagasawa, K" journalOrPublisher="Bulletin of the Biogeographical Society of Japan" pageId="0" pageNumber="91" pagination="103 - 122" refId="B27" refString="Nagasawa, K, Uyeno, D, Tang, D, 2010. A checklist of copepods of the genus Caligus (Siphonostomatoida, Caligidae) from fishes in Japanese waters. Bulletin of the Biogeographical Society of Japan 65: 103 - 122" title="A checklist of copepods of the genus Caligus (Siphonostomatoida, Caligidae) from fishes in Japanese waters." volume="65" year="2010">Nagasawa et al. 2010</bibRefCitation>
) in which only females were originally described by
<bibRefCitation DOI="https://doi.org/10.2331/suisan.20.21" author="Shiino, SM" journalOrPublisher="Bulletin of the Japanese Society of Scientific Fisheries" pageId="0" pageNumber="91" pagination="21 - 25" refId="B33" refString="Shiino, SM, 1954a. On Caliguslatigenitalis sp. nov., a copepod parasite on the fish, Sparusmicrocephalus (Basilewsky). Bulletin of the Japanese Society of Scientific Fisheries 20: 21 - 25" title="On Caliguslatigenitalis sp. nov., a copepod parasite on the fish, Sparusmicrocephalus (Basilewsky)." url="https://doi.org/10.2331/suisan.20.21" volume="20" year="1954 a">Shiino (1954a)</bibRefCitation>
and subsequently both sexes were redescribed in detail by
<bibRefCitation DOI="https://doi.org/10.1163/156854000505047" author="Izawa, K" journalOrPublisher="Crustaceana" pageId="0" pageNumber="91" pagination="995 - 1005" refId="B21" refString="Izawa, K, Choi, KH, 2000. Redescription of Caliguslatigenitalis Shiino, 1954 (Copepoda, Siphonostomatoida, Caligidae), parasitic on Japanese black sea bream, Acanthopagrusschlegeli (Bleeker, 1854). Crustaceana 73: 995 - 1005" title="Redescription of Caliguslatigenitalis Shiino, 1954 (Copepoda, Siphonostomatoida, Caligidae), parasitic on Japanese black sea bream, Acanthopagrusschlegeli (Bleeker, 1854)." url="https://doi.org/10.1163/156854000505047" volume="73" year="2000">Izawa and Choi (2000)</bibRefCitation>
. These two species are distinguishable as mentioned above. In addition,
<taxonomicName lsidName="C. bifurcus" pageId="0" pageNumber="91" rank="species" species="bifurcus">
<emphasis italics="true" pageId="0" pageNumber="91">C. bifurcus</emphasis>
</taxonomicName>
Shen, 1958, assigned to the same species group was described from Chinese waters based only on two females, but the non-sexually dimorphic characteristics such as sternal furca and legs differ distinctly from those of
<taxonomicName lsidName="C. chinglonglini" pageId="0" pageNumber="91" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">C. chinglonglini</emphasis>
</taxonomicName>
sp. nov. Therefore, the establishment of the present new species is justified.
</paragraph>
<paragraph pageId="0" pageNumber="91">
The new species is the fourth species of
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="91">Caligus</emphasis>
</taxonomicName>
found exclusively from plankton samples in Japan (see
<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.4174.1.27" author="Venmathi Maran, BA" journalOrPublisher="Zootaxa" pageId="0" pageNumber="91" pagination="437 - 447" refId="B47" refString="Venmathi Maran, BA, Suarez-Morales, E, Ohtsuka, S, Soh, HY, Hwang, UW, 2016. On the occurrence of caligids (Copepoda: Siphonostomatoida) in the marine plankton: a review and checklist. Zootaxa 4174: 437 - 447" title="On the occurrence of caligids (Copepoda: Siphonostomatoida) in the marine plankton: a review and checklist." url="https://doi.org/10.11646/zootaxa.4174.1.27" volume="4174" year="2016">Venmathi Maran et al. 2016</bibRefCitation>
, table 2).
</paragraph>
<paragraph pageId="0" pageNumber="91">
Peritrich ciliates were attached along the posterior margin of both maxillipeds (
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Caligus chinglonglini sp. nov., adult male, holotype A terminal part of leg 4, bifurcate processes arrowed B colony of peritrich ciliates attached along posterior margin of maxilliped corpus C peritrich ciliates attached on posterior margin of maxilliped corpus. Scale bars: in mm." figureDoi="10.3897/zookeys.893.46923.figure3" httpUri="https://binary.pensoft.net/fig/361321" pageId="0" pageNumber="91" tableDoi="10.3897/zookeys.893.46923.figure3">Fig. 3B, C</figureCitation>
) and on the ventral side of the cephalothorax. Epibiont suctorian and peritrich ciliates have already been recorded from species of
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="91">Caligus</emphasis>
</taxonomicName>
and
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Lepeophtheirus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lepeophtheirus" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="91">Lepeophtheirus</emphasis>
</taxonomicName>
von Nordmann, 1832 (
<bibRefCitation author="Stone, J" journalOrPublisher="Bulletin of European Association of Fish Pathology" pageId="0" pageNumber="91" pagination="113 - 115" refId="B40" refString="Stone, J, Bruno, DW, 1989. A report on Ephelota sp., a suctorian found on the sea lice, Lepeophtheirussalmonis and Caliguselongates. Bulletin of European Association of Fish Pathology 9: 113 - 115" title="A report on Ephelota sp., a suctorian found on the sea lice, Lepeophtheirussalmonis and Caliguselongates." volume="9" year="1989">Stone and Bruno 1989</bibRefCitation>
;
<bibRefCitation author="Gresty, KA" editor="Boxshall, GA" journalOrPublisher="Journal of Natural History" pageId="0" pageNumber="91" refId="B12" refString="Gresty, KA, Warren, A, Boxshall, GA, Defaye, D, 1993. Incidence of ciliate epibionts on Lepeophtheirussalmonis from salmon in Japan and Scotland: a scanning electron microscopic study. In: BoxshallGADefayeD (Eds) Pathogens of Wild and Farmed Fish: Sea Lice.Ellis Horwood Limited, West Sussex, 356-363." title="Incidence of ciliate epibionts on Lepeophtheirussalmonis from salmon in Japan and Scotland: a scanning electron microscopic study. In: BoxshallGADefayeD (Eds) Pathogens of Wild and Farmed Fish: Sea Lice. Ellis Horwood Limited, West Sussex, 356 - 363." year="1993">Gresty and Warren 1993</bibRefCitation>
;
<bibRefCitation DOI="https://doi.org/10.1080/00222930400001525" author="Fernandez-Leborans, G" journalOrPublisher="Journal of Natural History" pageId="0" pageNumber="91" pagination="587 - 596" refId="B11" refString="Fernandez-Leborans, G, Freeman, M, Gabilondo, R, Sommerville, C, 2005. Marine protozoan epibionts on the copepod Lepeophtheirussalmonis, parasite of the Atlantic salmon. Journal of Natural History 39: 587 - 596" title="Marine protozoan epibionts on the copepod Lepeophtheirussalmonis, parasite of the Atlantic salmon." url="https://doi.org/10.1080/00222930400001525" volume="39" year="2005">Fernandez-Leborans et al. 2005</bibRefCitation>
). In
<taxonomicName lsidName="L. salmonis" pageId="0" pageNumber="91" rank="species" species="salmonis">
<emphasis italics="true" pageId="0" pageNumber="91">L. salmonis</emphasis>
</taxonomicName>
(
<normalizedToken originalValue="Krøyer">Kroyer</normalizedToken>
, 1837) collected from Hokkaido, Japan, the peritrich
<taxonomicName class="Oligohymenophorea" family="Epistylididae" genus="Epistylis" higherTaxonomySource="CoL" kingdom="Chromista" lsidName="Epistylis" order="Peritrichida" pageId="0" pageNumber="91" phylum="Ciliophora" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="91">Epistylis</emphasis>
</taxonomicName>
sp. attached mainly to the antennae and legs 2 and 3. This is the first record of the occurrence of epibiont peritrich ciliates on &quot;pelagic caligids&quot; (
<bibRefCitation DOI="https://doi.org/10.1163/156854003773123438" author="Ho, JS" journalOrPublisher="Zoological Science" pageId="0" pageNumber="91" refId="B18" refString="Ho, JS, Lin, CL, 2004a. .https://doi.org/10.1163/156854003773123438" url="https://doi.org/10.1163/156854003773123438" year="2004 a">Ho and Lin 2004a</bibRefCitation>
;
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).
</paragraph>
<caption doi="10.3897/zookeys.893.46923.figure3" httpUri="https://binary.pensoft.net/fig/361321" pageId="0" pageNumber="91" start="Figure 3" startId="F3">
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">Figure 3.</emphasis>
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus chinglonglini" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">Caligus chinglonglini</emphasis>
</taxonomicName>
sp. nov., adult male, holotype
<emphasis bold="true" pageId="0" pageNumber="91">A</emphasis>
terminal part of leg 4, bifurcate processes arrowed
<emphasis bold="true" pageId="0" pageNumber="91">B</emphasis>
colony of peritrich ciliates attached along posterior margin of maxilliped corpus
<emphasis bold="true" pageId="0" pageNumber="91">C</emphasis>
peritrich ciliates attached on posterior margin of maxilliped corpus. Scale bars: in mm.
</paragraph>
</caption>
<caption ID-Table-UUID="668EC51B2C804C66CDE68A04360E158E" httpUri="http://table.plazi.org/id/668EC51B2C804C66CDE68A04360E158E" pageId="0" pageNumber="91" start="Table 1" startId="T1">
<paragraph pageId="0" pageNumber="91">
<emphasis bold="true" pageId="0" pageNumber="91">Table 1.</emphasis>
Armature and elements of legs 1 to 4 of
<taxonomicName class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus chinglonglini" order="Siphonostomatoida" pageId="0" pageNumber="91" phylum="Arthropoda" rank="species" species="chinglonglini">
<emphasis italics="true" pageId="0" pageNumber="91">Caligus chinglonglini</emphasis>
</taxonomicName>
sp. nov.
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="91">
<table pageId="0" pageNumber="91">
<tr pageId="0" pageNumber="91">
<th colspan="1" isEmpty="true" pageId="0" pageNumber="91" rowspan="1">-</th>
<th colspan="1" pageId="0" pageNumber="91" rowspan="1">Protopod (coxa; basis)</th>
<th colspan="1" pageId="0" pageNumber="91" rowspan="1">Endopod</th>
<th colspan="1" pageId="0" pageNumber="91" rowspan="1">Exopod</th>
</tr>
<tr pageId="0" pageNumber="91">
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">Leg 1</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">1-1</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">(vestigial)</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">1-0; III, 1, 3</td>
</tr>
<tr pageId="0" pageNumber="91">
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">Leg 2</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">0-1; 1-0</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">0-1; 0-2; 6</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">I-1; I-1; I, I,5</td>
</tr>
<tr pageId="0" pageNumber="91">
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">Leg 3</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">1-1</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">0-1; 6</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">I-0; I-1; 3, 4</td>
</tr>
<tr pageId="0" pageNumber="91">
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">Leg 4</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">1-0</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">(absent)</td>
<td colspan="1" pageId="0" pageNumber="91" rowspan="1">1-0; I, III</td>
</tr>
</table>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="91" type="etymology">
<paragraph pageId="0" pageNumber="91">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="91">The new species is named in honor of the late Dr Ching-long Lin who made a great contribution to the taxonomy of parasitic copepods together with Prof. Ju-shey Ho.</paragraph>
</subSubSection>
</treatment>
</document>
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