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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1115.83266" ID-Pensoft-Pub="1313-2970-1115-1" ID-Pensoft-UUID="1AB765B8065B5504A31014D2B0937E01" ID-ZooBank="C3E233F10EF74D2DBD4AA32AE7C4DF5E" ModsDocID="1313-2970-1115-1" checkinTime="1659044149331" checkinUser="pensoft" docAuthor="Lee, Jimin, Chang, Cheon Young &amp; Kim, Il-Hoi" docDate="2022" docId="E2AA7EA4BF295546A5EDC4D03106245B" docLanguage="en" docName="ZooKeys 1115: 1-71" docOrigin="ZooKeys 1115" docPubDate="2022-07-28" docSource="http://dx.doi.org/10.3897/zookeys.1115.83266" docTitle="Pseudanthessius linguifer Lee &amp; Chang &amp; Kim 2022, sp. nov." docType="treatment" docUuid="99BB54CC-6289-4E0D-9B8C-8D4AE3EF5805" docUuidSource="ZooBank" docVersion="1" id="1AB765B8065B5504A31014D2B0937E01" lastPageNumber="1" masterDocId="1AB765B8065B5504A31014D2B0937E01" masterDocTitle="Symbiotic copepods (Cyclopoida and Siphonostomatoida) collected by light trap from Korea" masterLastPageNumber="71" masterPageNumber="1" pageNumber="1" updateTime="1659044149331" updateUser="pensoft">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Symbiotic copepods (Cyclopoida and Siphonostomatoida) collected by light trap from Korea</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Lee, Jimin</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-9004-8275</mods:nameIdentifier>
<mods:affiliation>Marine Ecosystem and Biological Research Center, Korea Institute of Ocean Science &amp; Technology, Busan 49111, Republic of Korea</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Chang, Cheon Young</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0001-5557-7120</mods:nameIdentifier>
<mods:affiliation>Department of Biological Science, Daegu University, Gyeongsan 38453, Republic of Korea</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kim, Il-Hoi</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-7332-0043</mods:nameIdentifier>
<mods:affiliation>Korea Institute of Coastal Ecology, 302 - 802, Seokcheon-ro 397, Bucheon 14449, Republic of Korea</mods:affiliation>
<mods:nameIdentifier type="email">ihkim@gwnu.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>2022</mods:date>
<mods:detail type="pubDate">
<mods:number>2022-07-28</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>1115</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>71</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.1115.83266</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1115.83266</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-1115-1</mods:identifier>
<mods:identifier type="ZooBank">C3E233F10EF74D2DBD4AA32AE7C4DF5E</mods:identifier>
<mods:identifier type="Pensoft-UUID">1AB765B8065B5504A31014D2B0937E01</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:zoobank.org:act:99BB54CC-6289-4E0D-9B8C-8D4AE3EF5805" httpUri="http://treatment.plazi.org/id/E2AA7EA4BF295546A5EDC4D03106245B" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="https://zoobank.org/99BB54CC-6289-4E0D-9B8C-8D4AE3EF5805" authority="Lee &amp; Chang &amp; Kim, 2022" authorityName="Lee &amp; Chang &amp; Kim" authorityYear="2022" class="Hexanauplia" family="Pseudanthessiidae" genus="Pseudanthessius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudanthessius linguifer" order="Cyclopoida" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="linguifer" status="sp. nov.">Pseudanthessius linguifer</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">Figs 20</figureCitation>
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">, 21</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Material examined.</paragraph>
<paragraph pageId="0" pageNumber="1">
<materialsCitation collectingDate="2021-04-24" collectingDateMax="2021-05-31" collectingDateMin="2021-04-24" collectorName="J. Lee, Site, C. Y. Chang. Dissected, I. - H. Kim." county="Haenam" latitude="34.299168" location="Site" longLatPrecision="19" longitude="126.530556" municipality="Bogil Island" specimenCount="3" specimenCount-female="3" typeStatus="Holotype">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">
<typeStatus>Holotype</typeStatus>
</emphasis>
<specimenCount>♀</specimenCount>
(MABIK CR00250120) and intact
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">
<typeStatus>paratypes</typeStatus>
</emphasis>
<specimenCount type="female">3 ♀♀</specimenCount>
(MABIK CR00250121) preserved in 90% alcohol, and
<typeStatus>paratype</typeStatus>
<specimenCount>♀</specimenCount>
dissected and mounted on a slide,
<location LSID="urn:lsid:plazi:treatment:E2AA7EA4BF295546A5EDC4D03106245B:120E40454064D1E94FBC4DB2494AA99A" county="Haenam" latitude="34.299168" longLatPrecision="19" longitude="126.530556" municipality="Bogil Island" name="Site">Site</location>
22 (
<location LSID="urn:lsid:plazi:treatment:E2AA7EA4BF295546A5EDC4D03106245B:099D23DCAF8E60FE7C4C246C65DF1C21" county="Haenam" latitude="34.299168" longLatPrecision="19" longitude="126.530556" municipality="Bogil Island" name="Yesong">Yesong</location>
,
<collectingMunicipality>Bogil Island</collectingMunicipality>
, south coast,
<geoCoordinate degrees="34" direction="north" minutes="08" orientation="latitude" precision="15" seconds="11" value="34.13639">34°08'11&quot;N</geoCoordinate>
,
<geoCoordinate degrees="126" direction="east" minutes="33" orientation="longitude" precision="15" seconds="49" value="126.563614">126°33'49&quot;E</geoCoordinate>
),
<collectingDate value="2021-05-31">31 May 2021</collectingDate>
, leg.
<collectorName>J. Lee</collectorName>
;
<specimenCount>♀</specimenCount>
dissected and mounted on a slide,
<collectorName>Site</collectorName>
23 (
<collectingCounty>Haenam</collectingCounty>
, south coast,
<geoCoordinate degrees="34" direction="north" minutes="17" orientation="latitude" precision="15" seconds="57" value="34.299168">34°17'57&quot;N</geoCoordinate>
,
<geoCoordinate degrees="126" direction="east" minutes="31" orientation="longitude" precision="15" seconds="50" value="126.530556">126°31'50&quot;E</geoCoordinate>
),
<collectingDate value="2021-04-24">24 Apr. 2021</collectingDate>
, leg.
<collectorName>J. Lee</collectorName>
and
<collectorName>C. Y. Chang. Dissected</collectorName>
specimens are retained in the collection of
<collectorName>I.-H. Kim.</collectorName>
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Female.</emphasis>
Body (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20A</figureCitation>
) narrow. Body length of dissected and figured paratype 1.23 mm (length range 1.17-1.32 mm, holotype 1.19 mm). Maximum width 385
<normalizedToken originalValue="μm">μm</normalizedToken>
across cephalothorax. Prosome 727
<normalizedToken originalValue="μm">μm</normalizedToken>
long. Cephalothorax 463
<normalizedToken originalValue="μm">μm</normalizedToken>
long, distinctly longer than wide, with weak dorsal suture line delimiting cephalosome and first pedigerous somite. Fourth pedigerous somite with point near posterolateral corners; other prosomal somites with rounded corners. Urosome (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20B</figureCitation>
) shorter than prosome, five-segmented. Fifth pedigerous somite 102
<normalizedToken originalValue="μm">μm</normalizedToken>
wide. Genital double-somite ~ 1.5
<normalizedToken originalValue="×">x</normalizedToken>
longer than wide (182
<normalizedToken originalValue="×">x</normalizedToken>
123
<normalizedToken originalValue="μm">μm</normalizedToken>
), consisting of narrow anterior 17%, inflated middle 49%, and narrow posterior 34%; dorsally covered by brownish sticky material; genital apertures characteristically positioned ventrolaterally (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">21G</figureCitation>
) at 45% region of double-somite length; broader middle region bearing linguiform process dorsolaterally, posterior to each genital aperture (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20C</figureCitation>
); narrow posterior region with four horizontal membranous flanges (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20C</figureCitation>
) on dorsal surface, anterior one short, curved. Three free abdominal somites 45
<normalizedToken originalValue="×">x</normalizedToken>
49
<normalizedToken originalValue="μm">μm</normalizedToken>
, 25
<normalizedToken originalValue="×">x</normalizedToken>
44
<normalizedToken originalValue="μm">μm</normalizedToken>
, and 56
<normalizedToken originalValue="×">x</normalizedToken>
42
<normalizedToken originalValue="μm">μm</normalizedToken>
, respectively. Anal somite with minute spinules along posteroventral margin. Caudal ramus (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20D</figureCitation>
) elongate, 10
<normalizedToken originalValue="×">x</normalizedToken>
longer than wide (155
<normalizedToken originalValue="×">x</normalizedToken>
15.5
<normalizedToken originalValue="μm">μm</normalizedToken>
), 2.77
<normalizedToken originalValue="×">x</normalizedToken>
longer than anal somite, armed with six setae (seta II-VII); seta II (outer lateral seta) positioned at 78% length of ramus; setae IV-VI pinnate, other three setae naked.
</paragraph>
<caption doi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1" start="Figure 20" startId="F20">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 20.</emphasis>
<taxonomicName authorityName="Lee &amp; Chang &amp; Kim" authorityYear="2022" class="Hexanauplia" family="Pseudanthessiidae" genus="Pseudanthessius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudanthessius linguifer" order="Cyclopoida" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="linguifer">
<emphasis italics="true" pageId="0" pageNumber="1">Pseudanthessius linguifer</emphasis>
</taxonomicName>
sp. nov., female
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
habitus, dorsal
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
urosome, dorsal
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
proximal somites of urosome, dorsal
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
left caudal ramus, dorsal
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
rostrum
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
antennule
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
antenna
<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
labrum
<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
mandible
<emphasis bold="true" pageId="0" pageNumber="1">J</emphasis>
maxillule. Scale bars: 0.2 mm (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
); 0.05 mm (
<emphasis bold="true" pageId="0" pageNumber="1">B- D, F, G</emphasis>
); 0.02 mm (
<emphasis bold="true" pageId="0" pageNumber="1">E, H-J</emphasis>
).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
Rostrum (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20E</figureCitation>
) tapering, as long as wide, abruptly narrowed subdistally, with round apex. Antennule (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20F</figureCitation>
) 295
<normalizedToken originalValue="μm">μm</normalizedToken>
long, seven-segmented; armature formula 4, 13, 6, 3, 4+aesthetasc, 2+aesthetasc, and 7+aesthetasc; all setae thin, naked; aesthetascs also thin, setiform. Antenna (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20G</figureCitation>
) four-segmented; first segment (coxobasis) with one seta inner distally; second segment (first endopodal segment) with one seta on inner margin and fine spinules along outer margin; third segment short, armed with one slender claw and two setae; terminal segment 3.28
<normalizedToken originalValue="×">x</normalizedToken>
long than wide (77
<normalizedToken originalValue="×">x</normalizedToken>
23
<normalizedToken originalValue="μm">μm</normalizedToken>
), armed with four slender claws (inner and outer claws longer than middle two) plus three setae, and ornamented with fine spinules along outer margin.
</paragraph>
<paragraph pageId="0" pageNumber="1">
Labrum (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20H</figureCitation>
) with long, divergent posterolateral lobes, with deep median incision; each lobe with angle on inner margin; posterior margin of lobes fringed with membrane. Mandible (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20I</figureCitation>
) with one large, tooth-like outer scale; gnathobase tapering, with row of minute spinules along inner margin, terminating in long, thin lash. Maxillule (Fig.
<figureCitation captionStart="Figure 20" captionStartId="F20" captionText="Figure 20. Pseudanthessius linguifer sp. nov., female A habitus, dorsal B urosome, dorsal C proximal somites of urosome, dorsal D left caudal ramus, dorsal E rostrum F antennule G antenna H labrum I mandible J maxillule. Scale bars: 0.2 mm (A); 0.05 mm (B- D, F, G); 0.02 mm (E, H-J)." figureDoi="10.3897/zookeys.1115.83266.figure20" httpUri="https://binary.pensoft.net/fig/720740" pageId="0" pageNumber="1">20J</figureCitation>
) with four unequal setae (three apical and one on inner margin) and one blunt tubercle on outer margin; middle of three distal setae larger than other two. Maxilla (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">21A</figureCitation>
) two-segmented; proximal segment (syncoxa) unarmed; distal segment (basis) with extremely long distal lash and armed with two setae (setae I &amp; II); distal lash longer than remaining part maxilla, bearing one large claw-like process proximally, spinulose along convex outer margin; seta I large, slightly longer than half length of distal lash, spinulose along both margins; seta II unequally bifurcate at tip, with setiform outer furca and spinule-like inner furca; seta III absent. Maxilliped (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">21B</figureCitation>
) three-segmented; first segment (syncoxa) longest but unarmed; second segment (basis) armed with two very unequal setae (proximal seta large, spiniform, longer than width of segment, more than 4
<normalizedToken originalValue="×">x</normalizedToken>
as long as small distal seta), and ornamented with several longitudinal rows of fine spinules on inner surface; small third segment (endopod) tapering, claw-like, proximally with one spine and one small seta.
</paragraph>
<caption doi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1" start="Figure 21" startId="F21">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 21.</emphasis>
<taxonomicName authorityName="Lee &amp; Chang &amp; Kim" authorityYear="2022" class="Hexanauplia" family="Pseudanthessiidae" genus="Pseudanthessius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudanthessius linguifer" order="Cyclopoida" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="linguifer">
<emphasis italics="true" pageId="0" pageNumber="1">Pseudanthessius linguifer</emphasis>
</taxonomicName>
sp. nov., female
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
maxilla
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
maxilliped
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
leg 1
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
leg 2
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
third endopodal segment of leg 3
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
leg 4
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (
<emphasis bold="true" pageId="0" pageNumber="1">A, B</emphasis>
); 0.05 mm (
<emphasis bold="true" pageId="0" pageNumber="1">C-G</emphasis>
).
</paragraph>
</caption>
<paragraph pageId="0" pageNumber="1">
Legs 1-4 (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">21C-F</figureCitation>
) biramous. Legs 1-3 with three-segmented rami. Leg 4 with three-segmented exopod and one-segmented endopod. Inner coxal seta well-developed, pinnate in legs 1-4. Outer seta on basis thin, naked. Distal process between two distal spines on third endopodal segment of leg 2 blunt, slightly swollen. Three inner distal setae on third exopodal segment of legs 2 and 3 naked. Endopodal segment of leg 4 setulose on inner and outer margins, 2.6
<normalizedToken originalValue="×">x</normalizedToken>
longer than wide (68
<normalizedToken originalValue="×">x</normalizedToken>
26
<normalizedToken originalValue="μm">μm</normalizedToken>
), bearing angle on outer margin; two distal spines 82 (inner) and 61
<normalizedToken originalValue="μm">μm</normalizedToken>
long (outer). Armature formula for legs 1-4 as follows:
</paragraph>
<paragraph pageId="0" pageNumber="1">
<table pageId="0" pageNumber="1">
<tr pageId="0" pageNumber="1">
<td colspan="1" isEmpty="true" pageId="0" pageNumber="1" rowspan="1">-</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Coxa</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Basis</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Exopod</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Endopod</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Leg 1</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1-0</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">I-0; I-1; III, I, 4</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1; 0-1; I, 1, 4</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Leg 2</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1-0</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">I-0; I-1; III, I, 5</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1; 0-2; I, II, 3</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Leg 3</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1-0</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">I-0; I-1; III, I, 5</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1; 0-2; I, II, 2</td>
</tr>
<tr pageId="0" pageNumber="1">
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">Leg 4</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0-1</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">1-0</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">I-0; I-1; II, I, 5</td>
<td colspan="1" pageId="0" pageNumber="1" rowspan="1">0, II, 0</td>
</tr>
</table>
</paragraph>
<paragraph pageId="0" pageNumber="1">
Leg 5 (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">21G</figureCitation>
) represented by one spine and two setae on lateral surface of fifth pedigerous somite. Leg 6 (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Pseudanthessius linguifer sp. nov., female A maxilla B maxilliped C leg 1 D leg 2 E third endopodal segment of leg 3 F leg 4 G leg 5 and genital aperture, dorsal. Scale bars: 0.02 mm (A, B); 0.05 mm (C-G)." figureDoi="10.3897/zookeys.1115.83266.figure21" httpUri="https://binary.pensoft.net/fig/720741" pageId="0" pageNumber="1">21G</figureCitation>
) represented on two setae on genital operculum; anterior seta thin, weakly pinnate; posterior seta naked, proximally broadened.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Male.</emphasis>
Unknown.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="etymology">
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="1">
The specific name of the new species
<emphasis italics="true" pageId="0" pageNumber="1">linguifer</emphasis>
is derived from Latins
<emphasis italics="true" pageId="0" pageNumber="1">lingu</emphasis>
(the tongue) and
<emphasis italics="true" pageId="0" pageNumber="1">fer</emphasis>
(bear), referring to the presence of the tongue-like dorsolateral processes on the genital double-somite.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">
The most conspicuous feature of
<taxonomicName authorityName="Lee &amp; Chang &amp; Kim" authorityYear="2022" class="Hexanauplia" family="Pseudanthessiidae" genus="Pseudanthessius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudanthessius linguifer" order="Cyclopoida" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="linguifer">
<emphasis italics="true" pageId="0" pageNumber="1">Pseudanthessius linguifer</emphasis>
</taxonomicName>
sp. nov. is its elongate caudal rami, which are 10
<normalizedToken originalValue="×">x</normalizedToken>
longer than wide. Such long caudal rami are exhibited by four congeners:
<taxonomicName genus="P." lsidName="P. concinnus" pageId="0" pageNumber="1" rank="species" species="concinnus">
<emphasis italics="true" pageId="0" pageNumber="1">P. concinnus</emphasis>
</taxonomicName>
Thompson &amp; Scott, 1903,
<taxonomicName genus="P." lsidName="P. dubius" pageId="0" pageNumber="1" rank="species" species="dubius">
<emphasis italics="true" pageId="0" pageNumber="1">P. dubius</emphasis>
</taxonomicName>
Sars, 1918,
<taxonomicName genus="P." lsidName="P. thorelli" pageId="0" pageNumber="1" rank="species" species="thorelli">
<emphasis italics="true" pageId="0" pageNumber="1">P. thorelli</emphasis>
</taxonomicName>
(Brady &amp; Robertson, 1875), and
<taxonomicName genus="P." lsidName="P. stenosus" pageId="0" pageNumber="1" rank="species" species="stenosus">
<emphasis italics="true" pageId="0" pageNumber="1">P. stenosus</emphasis>
</taxonomicName>
Kim &amp; Hong, 2014. All of the other species in the genus have shorter caudal rami, at most 8.5
<normalizedToken originalValue="×">x</normalizedToken>
longer than wide, as in
<taxonomicName genus="P." lsidName="P. deficiens" pageId="0" pageNumber="1" rank="species" species="deficiens">
<emphasis italics="true" pageId="0" pageNumber="1">P. deficiens</emphasis>
</taxonomicName>
Stock, Humes &amp; Gooding, 1964 (
<bibRefCitation author="Stock, JH" journalOrPublisher="Studies on the Fauna of Curacao" pageId="0" pageNumber="1" pagination="1 - 74" refId="B56" refString="Stock, JH, Humes, AG, Gooding, RU, 1964. Copepoda associated with West Indian invertebrates. IV. The genera Octopicola, Pseudanthessius and Meomicola (Cyclopoida, Lichomolgidae). Studies on the Fauna of Curacao 18 (77): 1 - 74" title="Copepoda associated with West Indian invertebrates. IV. The genera Octopicola, Pseudanthessius and Meomicola (Cyclopoida, Lichomolgidae)." volume="18" year="1964">Stock et al. 1964</bibRefCitation>
).
<taxonomicName authorityName="Lee &amp; Chang &amp; Kim" authorityYear="2022" class="Hexanauplia" family="Pseudanthessiidae" genus="Pseudanthessius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudanthessius linguifer" order="Cyclopoida" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="linguifer">
<emphasis italics="true" pageId="0" pageNumber="1">Pseudanthessius linguifer</emphasis>
</taxonomicName>
sp. nov. differs from
<taxonomicName genus="P." lsidName="P. concinnus" pageId="0" pageNumber="1" rank="species" species="concinnus">
<emphasis italics="true" pageId="0" pageNumber="1">P. concinnus</emphasis>
</taxonomicName>
in having a large outer scale on the mandible (cf. the scale absent in
<taxonomicName genus="P." lsidName="P. concinnus" pageId="0" pageNumber="1" rank="species" species="concinnus">
<emphasis italics="true" pageId="0" pageNumber="1">P. concinnus</emphasis>
</taxonomicName>
) and two distal spines on the endopod of leg 4 (cf. one spine plus one seta in
<taxonomicName genus="P." lsidName="P. concinnus" pageId="0" pageNumber="1" rank="species" species="concinnus">
<emphasis italics="true" pageId="0" pageNumber="1">P. concinnus</emphasis>
</taxonomicName>
); from
<taxonomicName genus="P." lsidName="P. dubius" pageId="0" pageNumber="1" rank="species" species="dubius">
<emphasis italics="true" pageId="0" pageNumber="1">P. dubius</emphasis>
</taxonomicName>
in having the five-segmented urosome in the female (cf. four-segmented female urosome in
<taxonomicName genus="P." lsidName="P. dubius" pageId="0" pageNumber="1" rank="species" species="dubius">
<emphasis italics="true" pageId="0" pageNumber="1">P. dubius</emphasis>
</taxonomicName>
) and four distal claws on the antenna (cf. a single large claw in
<taxonomicName genus="P." lsidName="P. dubius" pageId="0" pageNumber="1" rank="species" species="dubius">
<emphasis italics="true" pageId="0" pageNumber="1">P. dubius</emphasis>
</taxonomicName>
); and from
<taxonomicName genus="P." lsidName="P. thorelli" pageId="0" pageNumber="1" rank="species" species="thorelli">
<emphasis italics="true" pageId="0" pageNumber="1">P. thorelli</emphasis>
</taxonomicName>
in having one spine plus one seta on the exopod of female leg 5 (cf. two setae in
<taxonomicName genus="P." lsidName="P. thorelli" pageId="0" pageNumber="1" rank="species" species="thorelli">
<emphasis italics="true" pageId="0" pageNumber="1">P. thorelli</emphasis>
</taxonomicName>
).
<taxonomicName authorityName="Lee &amp; Chang &amp; Kim" authorityYear="2022" class="Hexanauplia" family="Pseudanthessiidae" genus="Pseudanthessius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudanthessius linguifer" order="Cyclopoida" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="linguifer">
<emphasis italics="true" pageId="0" pageNumber="1">Pseudanthessius linguifer</emphasis>
</taxonomicName>
sp. nov. resembles
<taxonomicName genus="P." lsidName="P. stenosus" pageId="0" pageNumber="1" rank="species" species="stenosus">
<emphasis italics="true" pageId="0" pageNumber="1">P. stenosus</emphasis>
</taxonomicName>
which is known from Thailand (
<bibRefCitation DOI="https://doi.org/10.5635/ASED.2014.30.4.274" author="Kim, I-H" journalOrPublisher="Animal Systematics, Evolution and Diversity" pageId="0" pageNumber="1" pagination="274 - 318" refId="B34" refString="Kim, I-H, Hong, J-S, 2014. Copepods (Crustacea, Copepoda, Cyclopoida) associated with marine invertebrates from Thailand. Animal Systematics, Evolution and Diversity 30 (4): 274 - 318, DOI: https://doi.org/10.5635/ASED.2014.30.4.274" title="Copepods (Crustacea, Copepoda, Cyclopoida) associated with marine invertebrates from Thailand." url="https://doi.org/10.5635/ASED.2014.30.4.274" volume="30" year="2014">Kim and Hong 2014</bibRefCitation>
) in many morphological aspects, in particular, the possession of the spinules-covered second segment (basis) of the female maxilliped and the bifurcate anterior seta (seta II) on the basis of the maxilla. However, the new species is distinguishable from
<taxonomicName genus="P." lsidName="P. stenosus" pageId="0" pageNumber="1" rank="species" species="stenosus">
<emphasis italics="true" pageId="0" pageNumber="1">P. stenosus</emphasis>
</taxonomicName>
and other congeners by its other outstanding features, such as the presence of the tongue-like dorsolateral processes on the genital double-somite, the extremely long distal lash of the maxilla, and the ventrolateral position of the genital apertures.
</paragraph>
</subSubSection>
</treatment>
</document>
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