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<document id="02F26A1E42144745522AE67CF1DB8C8A" ID-DOI="10.12651/JSR.2021.10.3.287" ID-ISSN="2713-8615" ID-Zenodo-Dep="13140263" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1722401193655" checkinUser="felipe" docAuthor="Kim, Jae-Sang Hong and Il-Hoi" docDate="2021" docId="038A87E9FFDDED6E5FE9D703FBA9A3AB" docLanguage="en" docName="JSpeciesRes.10.3.287-300.pdf" docOrigin="Journal of Species Research 10 (3)" docStyle="DocumentStyle:4D398BFF45FF8CA9E08F546BB06AE372.2:JSpeciesRes.2012-.journal_article" docStyleId="4D398BFF45FF8CA9E08F546BB06AE372" docStyleName="JSpeciesRes.2012-.journal_article" docStyleVersion="2" docTitle="Myzomolgus leptocercosus Kim, 2021, n. sp." docType="treatment" docVersion="2" lastPageNumber="292" masterDocId="FFB3FF91FFDCED6B5F79D469FFDCA12B" masterDocTitle="Three new species of Myzomolgus (Copepoda, Cyclopoida, Catiniidae) associated with sipunculan worms from a tidal flat in Phuket, Thailand" masterLastPageNumber="300" masterPageNumber="287" pageNumber="288" updateTime="1722401581848" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="24F0C192C71A7CC42F20891382E0001B">Three new species of Myzomolgus (Copepoda, Cyclopoida, Catiniidae) associated with sipunculan worms from a tidal flat in Phuket, Thailand</mods:title>
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<mods:namePart id="E8C13586C73C5BD30F188821DBAB8A2D">Kim, Jae-Sang Hong and Il-Hoi</mods:namePart>
<mods:nameIdentifier id="1CA27432D6CF37991D20691A19C8500E" type="email">ihkim@gwnu.ac.kr</mods:nameIdentifier>
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<mods:date id="EA9148AB600F8A0FB116FD96ABD92D97">2021</mods:date>
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<mods:identifier id="65C80E6569E46E4CABE44CA075645229" type="ISSN">2713-8615</mods:identifier>
<mods:identifier id="9ADC9BA691170C8C8D6A515A9CA557C6" type="Zenodo-Dep">13140263</mods:identifier>
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<treatment id="038A87E9FFDDED6E5FE9D703FBA9A3AB" LSID="urn:lsid:plazi:treatment:038A87E9FFDDED6E5FE9D703FBA9A3AB" httpUri="http://treatment.plazi.org/id/038A87E9FFDDED6E5FE9D703FBA9A3AB" lastPageId="5" lastPageNumber="292" pageId="1" pageNumber="288">
<subSubSection id="C3396574FFDDED6A5FE9D703FDA8A2A9" box="[144,628,874,898]" pageId="1" pageNumber="288" type="nomenclature">
<paragraph id="8B9C36FFFFDDED6A5FE9D703FDA8A2A9" blockId="1.[144,628,874,898]" box="[144,628,874,898]" pageId="1" pageNumber="288">
<heading id="D0D48193FFDDED6A5FE9D703FDA8A2A9" bold="true" box="[144,628,874,898]" fontSize="10" level="2" pageId="1" pageNumber="288" reason="4">
<emphasis id="B957EAEDFFDDED6A5FE9D703FDA8A2A9" bold="true" box="[144,628,874,898]" pageId="1" pageNumber="288">
<taxonomicName id="4C234D7CFFDDED6A5FE9D703FE6AA2A9" ID-CoL="8QBRC" authorityName="Kim" authorityYear="2021" box="[144,438,874,898]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="1" pageNumber="288" phylum="Arthropoda" rank="species" species="leptocercosus" status="sp. nov.">
<emphasis id="B957EAEDFFDDED6A5FE9D703FE6AA2A9" bold="true" box="[144,438,874,898]" italics="true" pageId="1" pageNumber="288">Myzomolgus leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFDDED6A5EC5D703FE24A2A9" box="[444,504,874,898]" pageId="1" pageNumber="288" rank="species">n. sp.</taxonomicNameLabel>
(
<figureCitation id="13182A7AFFDDED6A5D7DD703FDB0A2A9" box="[516,620,874,898]" captionStart-0="Fig" captionStart-1="Fig" captionStart-2="Fig" captionStartId-0="2.[174,207,1949,1971]" captionStartId-1="3.[144,177,1970,1992]" captionStartId-2="4.[174,207,1547,1569]" captionTargetBox-0="[228,1391,261,1914]" captionTargetBox-1="[202,1345,263,1932]" captionTargetBox-2="[234,1386,261,1511]" captionTargetId-0="figure-14@2.[219,1398,257,1916]" captionTargetId-1="figure-10@3.[199,1359,257,1937]" captionTargetId-2="figure-205@4.[228,1390,257,1515]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="4" captionText-0="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." captionText-1="Fig. 2. Myzomolgus leptocercosus n. sp., female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars:A, 0.01mm; B-G, 0.02 mm." captionText-2="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi-0="http://doi.org/10.5281/zenodo.13140265" figureDoi-1="http://doi.org/10.5281/zenodo.13140267" figureDoi-2="http://doi.org/10.5281/zenodo.13140269" httpUri-0="https://zenodo.org/record/13140265/files/figure.png" httpUri-1="https://zenodo.org/record/13140267/files/figure.png" httpUri-2="https://zenodo.org/record/13140269/files/figure.png" pageId="1" pageNumber="288">Figs. 1-3</figureCitation>
)
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3396574FFDDED6E5FE9D7C2FDD5A4CC" lastPageId="5" lastPageNumber="292" pageId="1" pageNumber="288" type="materials_examined">
<paragraph id="8B9C36FFFFDDED6A5FE9D7C2FE70A5AF" blockId="1.[144,749,939,1996]" pageId="1" pageNumber="288">
<emphasis id="B957EAEDFFDDED6A5FE9D7C2FEA0A2E8" bold="true" box="[144,380,939,963]" pageId="1" pageNumber="288">Material examined.</emphasis>
<materialsCitation id="3B4B3CA2FFDDED6A5EFFD7C2FE70A5AF" collectingDate="2015-07-13" collectionCode="MABIK" country="Thailand" latitude="8.023611" location="Phuket" longLatPrecision="21" longitude="98.41473" pageId="1" pageNumber="288" specimenCode="CR00247440, CR00247441" specimenCount="14" specimenCount-male="14" stateProvince="Phuket" typeStatus="holotype">
27$$,
<specimenCount id="9D25FD76FFDDED6A5EA7D7C2FDC0A2EF" box="[478,540,939,964]" count="7" pageId="1" pageNumber="288" type="male">7♂♂</specimenCount>
from washings of unidentified sipunculid worms, northeastern tidal flat in
<collectingRegion id="49E7F81DFFDDED6A5FD2D782FF2AA528" box="[171,246,1003,1027]" country="Thailand" name="Phuket" pageId="1" pageNumber="288">Phuket</collectingRegion>
,
<collectingCountry id="F334766FFFDDED6A5E79D782FE81A528" box="[256,349,1003,1027]" name="Thailand" pageId="1" pageNumber="288">Thailand</collectingCountry>
(approximately
<geoCoordinate id="EE175038FFDDED6A5D7ED782FDA4A528" box="[519,632,1003,1027]" degrees="8" direction="north" minutes="01" orientation="latitude" pageId="1" pageNumber="288" precision="15" seconds="25" value="8.023611">8°01′25″N</geoCoordinate>
,
<geoCoordinate id="EE175038FFDDED6A5DFAD782FF7FA50F" degrees="98" direction="east" minutes="24" orientation="longitude" pageId="1" pageNumber="288" precision="15" seconds="53" value="98.41473">98°24′53″ E</geoCoordinate>
),
<date id="FF9D103FFFDDED6A5FC0D065FE90A508" box="[185,332,1035,1060]" pageId="1" pageNumber="288" value="2015-07-13">
<collectingDate id="EFD9E9D7FFDDED6A5FC0D065FE90A508" box="[185,332,1035,1060]" pageId="1" pageNumber="288" value="2015-07-13">13 July 2015</collectingDate>
</date>
.
<typeStatus id="5498885DFFDDED6A5E21D062FE60A508" box="[344,444,1035,1059]" pageId="1" pageNumber="288" type="holotype">Holotype</typeStatus>
($,
<collectionCode id="ED32AE3AFFDDED6A5E88D065FD96A50F" box="[497,586,1036,1060]" pageId="1" pageNumber="288">MABIK</collectionCode>
<specimenCode id="DB859E84FFDDED6A5D2DD065FD38A50F" box="[596,740,1036,1060]" collectionCode="MABIK" pageId="1" pageNumber="288">CR00247440</specimenCode>
) and
<typeStatus id="5498885DFFDDED6A5FBBD045FEF1A56F" box="[194,301,1068,1092]" pageId="1" pageNumber="288" type="paratype">paratypes</typeStatus>
(24$$,
<specimenCount id="9D25FD76FFDDED6A5EECD045FE0DA56E" box="[405,465,1068,1093]" count="5" pageId="1" pageNumber="288" type="male">5♂♂</specimenCount>
,
<collectionCode id="ED32AE3AFFDDED6A5E9BD045FDE1A56F" box="[482,573,1068,1092]" pageId="1" pageNumber="288">MABIK</collectionCode>
<specimenCode id="DB859E84FFDDED6A5D3ED045FD3DA56F" box="[583,737,1068,1092]" collectionCode="MABIK" pageId="1" pageNumber="288">CR00247441</specimenCode>
). Dissected
<typeStatus id="5498885DFFDDED6A5F85D025FEBCA54F" box="[252,352,1100,1124]" pageId="1" pageNumber="288" type="paratype">paratypes</typeStatus>
(2$$,
<specimenCount id="9D25FD76FFDDED6A5ECDD025FE32A54E" box="[436,494,1100,1125]" count="2" pageId="1" pageNumber="288" type="male">2♂♂</specimenCount>
) are retained in the collection of the junior author.
</materialsCitation>
</paragraph>
<paragraph id="8B9C36FFFFDDED6A5FDFD0E5FB43A0D4" blockId="1.[144,749,939,1996]" lastBlockId="1.[809,1414,261,1995]" pageId="1" pageNumber="288">
Female. Body (
<figureCitation id="13182A7AFFDDED6A5E31D0E5FE47A58E" box="[328,411,1164,1189]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1A</figureCitation>
) dorsoventrally flattened. Body length 0.92 mm. Prosome broad, 4-segmented, oocupying 58% of body length. Cephalothorax distinctly wider than long, consisting of completely fused cephalosome and first pedigerous somite, without dorsal suture line between them. Four prosomal somites with well-developed epimera bearing round corners. Urosome (
<figureCitation id="13182A7AFFDDED6A5D24D127FD6CA44D" box="[605,688,1358,1382]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1B</figureCitation>
) narrow, 5-segmented. Fifth pedigerous somite 140 μm wide, tapering laterally, much wider than genital double-somite, with raised dorsal surface, more than 10 sensilla on dorsal raised region, and numerous minute spinules on ventral surface. Genital double-somite wider than long (60 × 90 μm), with broader anterior and narrower posterior halves, horizontal sclerotization band between genital areas, several sensilla on dorsal surface, 3 oblique membranes on both sides of dorsal surface, and minute spinules on anterior region of ventral surface (
<figureCitation id="13182A7AFFDDED6A5EABD2F8FDF9A782" box="[466,549,1681,1705]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1C</figureCitation>
); genital apertures positioning dorsolaterally in middle of double-somite length. Three free abdominal somites 60 × 55, 53 × 45, and 23 × 41 μm, respectively. First and second free abdominal somites each with 3 obique membranes on each side of dorsal surface and 1 or 2 pairs of spinules on lateral surfaces. Anal somite very short, with deep median incision and patch of rather prominent spinules on ventral surface (
<figureCitation id="13182A7AFFDDED6A5E43D3FAFE51A680" box="[314,397,1939,1963]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1C</figureCitation>
). Caudal rami (
<figureCitation id="13182A7AFFDDED6A5D4AD3FAFD7BA680" box="[563,679,1939,1963]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1B, C</figureCitation>
) elongate, slightly divergent, with 4 spinules on posteroventral margin and numerous minute spinules on ventral surface; each ramus 10.7 times longer than wide (150 × 14 μm), armed with 7 naked setae; proximal lateral seta (seta I) small, positioning 10% region of ramus length; other 6 setae (seta
<collectionCode id="ED32AE3AFFDDED6A5CFDD5EEFC16A0B5" box="[900,970,390,414]" pageId="1" pageNumber="288">II- VII</collectionCode>
) positioning distally or subdistally; seta
<collectionCode id="ED32AE3AFFDDED6A5A0AD5EEFA5AA0B5" box="[1395,1414,391,414]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="1" pageNumber="288" type="Museum">V</collectionCode>
distinctly longer than caudal ramus, but other setae small, much shorter than ramus. Egg sac (
<figureCitation id="13182A7AFFDDED6A5BCCD5AEFAD0A0F4" box="[1205,1292,455,479]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1D</figureCitation>
) flattened, 260 × 158 μm, double eggs-layered.
</paragraph>
<paragraph id="8B9C36FFFFDDED6A5C46D661FCA6A54F" blockId="1.[809,1414,261,1995]" pageId="1" pageNumber="288">
Rostrum (
<figureCitation id="13182A7AFFDDED6A5CDED66EFC2AA334" box="[935,1014,519,543]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1E</figureCitation>
) broad; lateral margins parallel along its proximal third, but strongly tapering along distal twothirds, with pointed distal apex. Antennule (
<figureCitation id="13182A7AFFDDED6A5A5ED621FAA0A34B" box="[1319,1404,584,608]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1F</figureCitation>
) slender, 6-segmented, flexed between penultimate and terminal segments; armature formula 5, 14, 9, 4 + aesthetasc, 2 + aesthetasc, and 7 + aesthetasc; first segment with conical process on ventral margin; proximalmost seta of first segment short, plumose; 2 distal segments bearing pinnate setae, 1 on fifth and 4 on sixth segments. Antenna (
<figureCitation id="13182A7AFFDDED6A5CE9D740FC39A269" box="[912,997,809,834]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1G</figureCitation>
) 4-segmented, consisting of basis and 3-segmented endopod; basis the longest segment, armed distally with 1 pinnate seta and ornamented with unequal setules on surfaces; first endopodal segment smooth and unarmed; second endopodal segment with 1 small seta on innter margin and 1 large, peduculate sucker; third endopodal segment with 2 very unequal setae and 4 curved, spiniform setae of unequal lengths; each spiniform seta terminating by pad-like expansion, bearing spinulose inner margin.
</paragraph>
<paragraph id="8B9C36FFFFDDED6A5C46D005FC71A703" blockId="1.[809,1414,261,1995]" pageId="1" pageNumber="288">
Labrum (
<figureCitation id="13182A7AFFDDED6A5CDDD005FC20A5AF" box="[932,1020,1132,1156]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1H</figureCitation>
) much wider than long, triangular, with 13 teeth along mid-region of posterior margin. Mandible (
<figureCitation id="13182A7AFFDDED6A5C12D0C4FC6FA5EE" box="[875,947,1197,1221]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="1" pageNumber="288">Fig. 1I</figureCitation>
) strongly curved, unsegmented, armed distally with 4 elements: 1 naked, conical ventral spine, 2 broad, spinulose, plate-like middle elements, and slender, setiform dorsal element. Maxillule (
<figureCitation id="13182A7AFFDDED6A5BE4D164FB33A40D" box="[1181,1263,1293,1318]" captionStart="Fig" captionStartId="3.[144,177,1970,1992]" captionTargetBox="[202,1345,263,1932]" captionTargetId="figure-10@3.[199,1359,257,1937]" captionTargetPageId="3" captionText="Fig. 2. Myzomolgus leptocercosus n. sp., female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars:A, 0.01mm; B-G, 0.02 mm." figureDoi="http://doi.org/10.5281/zenodo.13140267" httpUri="https://zenodo.org/record/13140267/files/figure.png" pageId="1" pageNumber="288">Fig. 2A</figureCitation>
) as small lobe bearing 4 naked setae. Maxilla (
<figureCitation id="13182A7AFFDDED6A5BF4D147FB3EA46D" box="[1165,1250,1326,1350]" captionStart="Fig" captionStartId="3.[144,177,1970,1992]" captionTargetBox="[202,1345,263,1932]" captionTargetId="figure-10@3.[199,1359,257,1937]" captionTargetPageId="3" captionText="Fig. 2. Myzomolgus leptocercosus n. sp., female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars:A, 0.01mm; B-G, 0.02 mm." figureDoi="http://doi.org/10.5281/zenodo.13140267" httpUri="https://zenodo.org/record/13140267/files/figure.png" pageId="1" pageNumber="288">Fig. 2B</figureCitation>
) 2-segmented; proximal segment (syncoxa) large, unarmed, but ornamented with numerous spinules on ventral surface and posterior margin; distal segment (basis) small, terminating in slender, spiniform process bearing minutely bifurcate tip, armed with 3 setae (1 simple and 2 unilaterally flanged with membrane) and 1 membranous flap. Maxilliped absent.
</paragraph>
<paragraph id="8B9C36FFFFDDED6A5C46D259FBC3A6E0" blockId="1.[809,1414,261,1995]" pageId="1" pageNumber="288">
Legs 1-4 with 3-segmented rami (
<figureCitation id="13182A7AFFDDED6A5BC0D259FAF3A763" box="[1209,1327,1584,1608]" captionStart="Fig" captionStartId="3.[144,177,1970,1992]" captionTargetBox="[202,1345,263,1932]" captionTargetId="figure-10@3.[199,1359,257,1937]" captionTargetPageId="3" captionText="Fig. 2. Myzomolgus leptocercosus n. sp., female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars:A, 0.01mm; B-G, 0.02 mm." figureDoi="http://doi.org/10.5281/zenodo.13140267" httpUri="https://zenodo.org/record/13140267/files/figure.png" pageId="1" pageNumber="288">Fig. 2C- E</figureCitation>
). Endopods longer than exopods. Leg 3 same as leg
<quantity id="4CDB9B1AFFDDED6A5A6FD239FA9CA743" box="[1302,1344,1616,1640]" metricMagnitude="-2" metricUnit="m" metricValue="5.08" pageId="1" pageNumber="288" unit="in" value="2.0">2 in</quantity>
armature and ornamentation. Coxae with setulose outer margin in legs 1-4, several long spinules on vetral surface in legs 2-4, and small inner seta in legs 1-4. Intercoxal plates bearing spinules along distal margin. Basis obliquely elongate, spinulose along distal margin; outer margin setulose in legs 1-3, but spinulose in leg 4. Basis of leg 1 with large, medially cuved inner distal spine bearing spinules along its outer margin. Outer margins of rami of legs 1-4 densely spinulose. Outer spines on rami small and naked. Outer setae on rami small. Armature formula for legs 1-4 as follows:
</paragraph>
<caption id="DF5C6677FFDEED695FD7D3F4FA96A6E5" ID-DOI="http://doi.org/10.5281/zenodo.13140265" ID-Zenodo-Dep="13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="2" pageNumber="289" startId="2.[174,207,1949,1971]" targetBox="[228,1391,261,1914]" targetPageId="2" targetType="figure">
<paragraph id="8B9C36FFFFDEED695FD7D3F4FA96A6E5" blockId="2.[174,1444,1949,1998]" pageId="2" pageNumber="289">
<emphasis id="B957EAEDFFDEED695FD7D3F4FF37A698" bold="true" box="[174,235,1949,1971]" pageId="2" pageNumber="289">Fig. 1.</emphasis>
<taxonomicName id="4C234D7CFFDEED695F8AD3F4FE35A699" authorityName="Kim" authorityYear="2021" box="[243,489,1949,1970]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="2" pageNumber="289" phylum="Arthropoda" rank="species" species="leptocercosus" status="sp. nov.">
<emphasis id="B957EAEDFFDEED695F8AD3F4FE35A699" box="[243,489,1949,1970]" italics="true" pageId="2" pageNumber="289">Myzomolgus leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFDEED695E89D3F7FDF9A698" box="[496,549,1950,1971]" pageId="2" pageNumber="289" rank="species">n. sp.</taxonomicNameLabel>
, female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars: A, D, 0.1 mm; B, C, E, 0.05 mm; F- H, 0.02 mm; I, 0.01 mm.
</paragraph>
</caption>
<caption id="DF5C6677FFDFED685FE9D3DBFE26A6C8" ID-DOI="http://doi.org/10.5281/zenodo.13140267" ID-Zenodo-Dep="13140267" httpUri="https://zenodo.org/record/13140267/files/figure.png" pageId="3" pageNumber="290" startId="3.[144,177,1970,1992]" targetBox="[202,1345,263,1932]" targetPageId="3" targetType="figure">
<paragraph id="8B9C36FFFFDFED685FE9D3DBFE26A6C8" blockId="3.[144,1415,1970,2019]" pageId="3" pageNumber="290">
<emphasis id="B957EAEDFFDFED685FE9D3DBFF11A6EC" bold="true" box="[144,205,1970,1992]" pageId="3" pageNumber="290">Fig. 2.</emphasis>
<taxonomicName id="4C234D7CFFDFED685FAAD3DBFE14A6EC" authorityName="Kim" authorityYear="2021" box="[211,456,1970,1991]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="3" pageNumber="290" phylum="Arthropoda" rank="species" species="leptocercosus" status="sp. nov.">
<emphasis id="B957EAEDFFDFED685FAAD3DBFE14A6EC" box="[211,456,1970,1991]" italics="true" pageId="3" pageNumber="290">Myzomolgus leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFDFED685EB7D3DAFDDEA6E3" box="[462,514,1971,1992]" pageId="3" pageNumber="290" rank="species">n. sp.</taxonomicNameLabel>
, female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars: A, 0.01 mm; B- G, 0.02 mm.
</paragraph>
</caption>
<caption id="DF5C6677FFD8ED6F5FD7D262FC8AA710" ID-DOI="http://doi.org/10.5281/zenodo.13140269" ID-Zenodo-Dep="13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="4" pageNumber="291" startId="4.[174,207,1547,1569]" targetBox="[234,1386,261,1511]" targetPageId="4" targetType="figure">
<paragraph id="8B9C36FFFFD8ED6F5FD7D262FC8AA710" blockId="4.[174,1444,1547,1596]" pageId="4" pageNumber="291">
<emphasis id="B957EAEDFFD8ED6F5FD7D262FF37A70B" bold="true" box="[174,235,1547,1569]" pageId="4" pageNumber="291">Fig. 3.</emphasis>
<taxonomicName id="4C234D7CFFD8ED6F5F88D262FE3AA70B" authorityName="Kim" authorityYear="2021" box="[241,486,1547,1568]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="4" pageNumber="291" phylum="Arthropoda" rank="species" species="leptocercosus" status="sp. nov.">
<emphasis id="B957EAEDFFD8ED6F5F88D262FE3AA70B" box="[241,486,1547,1568]" italics="true" pageId="4" pageNumber="291">Myzomolgus leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD8ED6F5E95D265FDC3A70A" box="[492,543,1548,1569]" pageId="4" pageNumber="291" rank="species">n. sp.</taxonomicNameLabel>
, male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars: A, 0.1 mm; B, C, 0.05 mm; D- F, 0.02 mm.
</paragraph>
</caption>
<paragraph id="8B9C36FFFFD8ED6F5E5FD2EEFD6AA7B6" blockId="4.[174,779,1671,1793]" box="[294,694,1671,1693]" pageId="4" pageNumber="291">Coxa Basis Exopod Endopod</paragraph>
<paragraph id="8B9C36FFFFD8ED6F5FD7D2C0FD30A62B" blockId="4.[174,779,1671,1793]" pageId="4" pageNumber="291">Leg 1 0-1 1-I I-0; I-1; I + 2, I, 3 0-1; 0-1; I+ 1, I, 3 Legs 2 &amp; 3 0-1 1-0 I-0; I-1; I + 1, I, 4 0-1; 0-1; I+ 1, I, 3 Leg 4 0-1 1-0 I-0; I-1; I + 1, 1, 6 0-1; 0-1; 1, I, 2</paragraph>
<paragraph id="8B9C36FFFFD8ED6F5FBCD34DFABAA630" blockId="4.[174,778,1827,1980]" lastBlockId="4.[839,1445,1666,1981]" pageId="4" pageNumber="291">
Leg 5 (
<figureCitation id="13182A7AFFD8ED6F5E6AD34AFEBAA610" box="[275,358,1827,1851]" captionStart="Fig" captionStartId="3.[144,177,1970,1992]" captionTargetBox="[202,1345,263,1932]" captionTargetId="figure-10@3.[199,1359,257,1937]" captionTargetPageId="3" captionText="Fig. 2. Myzomolgus leptocercosus n. sp., female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars:A, 0.01mm; B-G, 0.02 mm." figureDoi="http://doi.org/10.5281/zenodo.13140267" httpUri="https://zenodo.org/record/13140267/files/figure.png" pageId="4" pageNumber="291">Fig. 2F</figureCitation>
) 2-segmented, consisting of protopod and exopod; protopod directed posterolaterally (
<figureCitation id="13182A7AFFD8ED6F5DD3D32AFD20A677" box="[682,764,1859,1884]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="4" pageNumber="291">Fig. 1B</figureCitation>
), distinctly articulated from somite, with spinules on distal surfaces, armed with 1 long, simple posterolateral seta; exopod directed posteriorly, 1.91 times longer than wide (44 × 23 μm), with round distal margin, armed with 4 simple setae, and ornamented with rows of spinules on outer and distal margins; 4 setae on exopod 30, 25, 33, and 33 μm, respectively, from outer proximal to distal. Leg 6 (
<figureCitation id="13182A7AFFD8ED6F5A03D28AFCB4A630" captionStart="Fig" captionStartId="3.[144,177,1970,1992]" captionTargetBox="[202,1345,263,1932]" captionTargetId="figure-10@3.[199,1359,257,1937]" captionTargetPageId="3" captionText="Fig. 2. Myzomolgus leptocercosus n. sp., female. A, maxillule; B, maxilla; C, leg 1; D, leg 2; E, leg 4; F, leg 5; G, left genital area, dorsal. Scale bars:A, 0.01mm; B-G, 0.02 mm." figureDoi="http://doi.org/10.5281/zenodo.13140267" httpUri="https://zenodo.org/record/13140267/files/figure.png" pageId="4" pageNumber="291">Fig. 2G</figureCitation>
) represented by 2 small setae in genital aperture.
</paragraph>
<paragraph id="8B9C36FFFFD8ED6E5C27D34AFF1FA3EB" blockId="4.[839,1445,1666,1981]" lastBlockId="5.[144,749,261,1995]" lastPageId="5" lastPageNumber="292" pageId="4" pageNumber="291">
Male. Body (
<figureCitation id="13182A7AFFD8ED6F5C92D34AFB9DA617" box="[1003,1089,1827,1852]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="4" pageNumber="291">Fig. 3A</figureCitation>
) similar to that of female. Body length of largest dissected specimen 0.72 mm. Prosome 439 × 276 μm, comprising unsegmented cephalothorax and second to fourth pedigerous somites, gradually narrowing posteriorly. Urosome (
<figureCitation id="13182A7AFFD8ED6F5BD6D3CDFADFA696" box="[1199,1283,1956,1981]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="4" pageNumber="291">Fig. 3B</figureCitation>
) 6-segmented, consisting of fifth pedigerous somite, genital somite, and 4 abdominal somites. Fifth pedigerous somite 114 μm wide, distinctly wider than genital somite, with scattered spinules on ventral surface. Genital somite much wid- er than long (45 × 98 μm) with oblique row of spinules on ventral surface of each genital operculum. Four absominal somites 34 × 58, 42 × 47, 40 × 40, and 14 × 31 μm, respectively. Proximal 3 abdominal somites lacking spinules on ventral surface. Anal somite small, with spinules on ventral surface, incompletely articulated from third abdominal somite on dorsal surface (
<figureCitation id="13182A7AFFD9ED6E5D28D621FD79A34B" box="[593,677,584,608]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3C</figureCitation>
). Caudal ramus (
<figureCitation id="13182A7AFFD9ED6E5E7CD601FE8AA3AB" box="[261,342,616,640]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3C</figureCitation>
) 7.08 times longer than wide (85 × 12 μm), armed as in female, but dorsal seta (seta
<collectionCode id="ED32AE3AFFD9ED6E5DF2D6E1FD6DA38B" box="[651,689,648,672]" pageId="5" pageNumber="292">VII</collectionCode>
) pinnate.
</paragraph>
<paragraph id="8B9C36FFFFD9ED6E5FDFD6A0FE8DA2A9" blockId="5.[144,749,261,1995]" pageId="5" pageNumber="292">
Rostrum as in female. Antennule as in female, except bearing 1 additional seta on third segment at place of dark circle in
<figureCitation id="13182A7AFFD9ED6E5F92D760FEEBA20A" box="[235,311,777,801]" captionStart="Fig" captionStartId="2.[174,207,1949,1971]" captionTargetBox="[228,1391,261,1914]" captionTargetId="figure-14@2.[219,1398,257,1916]" captionTargetPageId="2" captionText="Fig. 1. Myzomolgus leptocercosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, urosome, ventral; D, egg sac; E, rostral area, ventral; F, antennule; G, antenna; H, labrum; I, mandible. Scale bars:A, D, 0.1 mm; B, C, E, 0.05mm; F-H, 0.02mm; I, 0.01 mm." figureDoi="http://doi.org/10.5281/zenodo.13140265" httpUri="https://zenodo.org/record/13140265/files/figure.png" pageId="5" pageNumber="292">
Fig.
<specimenCount id="9D25FD76FFD9ED6E5E62D760FEEBA20A" box="[283,311,777,801]" count="1" pageId="5" pageNumber="292" type="generic">1F</specimenCount>
</figureCitation>
. Anatenna (
<figureCitation id="13182A7AFFD9ED6E5EC9D760FDDEA20A" box="[432,514,777,801]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3D</figureCitation>
) different from that of female in having on second endopodal segment 1 curved, additional setiform element bearing row of 8 minute, pedunculate suckers.
</paragraph>
<paragraph id="8B9C36FFFFD9ED6E5FDFD7E3FE95A46D" blockId="5.[144,749,261,1995]" pageId="5" pageNumber="292">
Labrum (
<figureCitation id="13182A7AFFD9ED6E5E7ED7E3FE85A289" box="[263,345,906,930]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3E</figureCitation>
) elongated, with pair of suckers posterolaterally on ventral surface; posterior margin concave, with row of 12 spinules. Mandible, maxillule, and maxilla as in female. Maxilliped (
<figureCitation id="13182A7AFFD9ED6E5ED4D782FDDCA528" box="[429,512,1003,1027]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3F</figureCitation>
) consisting of 3 segments and terminal claw; first segment (syncoxa) short, wider than long, with 1 long, naked seta at inner distal corner; second segment (basis) nearly rectangular, with 2 small setae at inner subdistal region and patch of about 10 spinules at inner distal region, and ornamented with 3 rows of minute spinules on distal surfaces; short third segment (endopod) unarmed; terminal claw large, weakly curved, with 3 unequal setae on proximal region, row of minute spinules on distal half of inner margin, and 1 small setule subdistally.
</paragraph>
<paragraph id="8B9C36FFFFD9ED6E5FDFD126FDD5A4CC" blockId="5.[144,749,261,1995]" pageId="5" pageNumber="292">
Legs 1-4 shaped and armed as in female. Leg 5 (
<figureCitation id="13182A7AFFD9ED6E5DB8D127FF73A4AD" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3B</figureCitation>
) consisting of 1 dorsolateral seta of fifth pedigerous somite and 1-segmented, free exopod; exopodal segment about 3.5 times longer than wide, armed and ornamented as in female. Leg 6 absent (
<figureCitation id="13182A7AFFD9ED6E5ED2D1A6FE21A4CC" box="[427,509,1487,1511]" captionStart="Fig" captionStartId="4.[174,207,1547,1569]" captionTargetBox="[234,1386,261,1511]" captionTargetId="figure-205@4.[228,1390,257,1515]" captionTargetPageId="4" captionText="Fig. 3. Myzomolgus leptocercosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, distal part of urosome, dorsal; D, antenna; E, labrum; F, maxilliped. Scale bars:A, 0.1 mm; B, C, 0.05 mm; D-F, 0.02mm." figureDoi="http://doi.org/10.5281/zenodo.13140269" httpUri="https://zenodo.org/record/13140269/files/figure.png" pageId="5" pageNumber="292">Fig. 3B</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C3396574FFD9ED6E5FE9D199FDB6A763" pageId="5" pageNumber="292" type="etymology">
<paragraph id="8B9C36FFFFD9ED6E5FE9D199FDB6A763" blockId="5.[144,749,261,1995]" pageId="5" pageNumber="292">
<emphasis id="B957EAEDFFD9ED6E5FE9D199FECDA723" bold="true" box="[144,273,1520,1544]" pageId="5" pageNumber="292">Etymology.</emphasis>
The specific name is a combination of the Greek words
<emphasis id="B957EAEDFFD9ED6E5E64D279FE8DA703" box="[285,337,1552,1576]" italics="true" pageId="5" pageNumber="292">lepto</emphasis>
(= slender) and
<emphasis id="B957EAEDFFD9ED6E5D79D279FDE5A70C" box="[512,569,1552,1575]" italics="true" pageId="5" pageNumber="292">cerco</emphasis>
(= tail), alluding to the slender caudal rami of the new species.
</paragraph>
</subSubSection>
<subSubSection id="C3396574FFD9ED6E5FE9D238FBA9A3AB" pageId="5" pageNumber="292" type="discussion">
<paragraph id="8B9C36FFFFD9ED6E5FE9D238FBA9A3AB" blockId="5.[144,749,261,1995]" lastBlockId="5.[809,1414,261,640]" pageId="5" pageNumber="292">
<emphasis id="B957EAEDFFD9ED6E5FE9D238FF23A742" bold="true" box="[144,255,1617,1641]" pageId="5" pageNumber="292">Remarks.</emphasis>
<taxonomicName id="4C234D7CFFD9ED6E5E71D239FDF0A743" authorityName="Kim" authorityYear="2021" box="[264,556,1616,1640]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="leptocercosus" status="sp. nov.">
<emphasis id="B957EAEDFFD9ED6E5E71D239FDF0A743" box="[264,556,1616,1640]" italics="true" pageId="5" pageNumber="292">Myzomolgus leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD9ED6E5D4DD238FDADA743" box="[564,625,1617,1640]" pageId="5" pageNumber="292" rank="species">n. sp.</taxonomicNameLabel>
closely resembles
<taxonomicName id="4C234D7CFFD9ED6E5F92D218FE36A7A2" authority="Kim, 2001" authorityName="Kim" authorityYear="2001" box="[235,490,1648,1673]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="B957EAEDFFD9ED6E5F92D218FEAEA7A3" box="[235,370,1648,1672]" italics="true" pageId="5" pageNumber="292">M. orientalis</emphasis>
<bibRefCitation id="EFB24B0EFFD9ED6E5E00D219FE36A7A2" author="Kim, I. - H." box="[377,490,1648,1673]" pageId="5" pageNumber="292" pagination="71 - 89" refId="ref7141" refString="Kim, I. - H. 2001. Redescription of Catinia plana Bocquet and Stock, 1957 and description of two new species of Myzomolgus (Copepoda, Poecilostomatoida, Catiniidae) associated with sipunculans in Korea. The Korean Journal of Systematic Zoology 17 (1): 71 - 89." type="journal article" year="2001">
Kim,
<quantity id="4CDB9B1AFFD9ED6E5ECCD218FE36A7A2" box="[437,490,1649,1673]" metricMagnitude="1" metricUnit="m" metricValue="5.08254" pageId="5" pageNumber="292" unit="in" value="2001.0">2001</quantity>
</bibRefCitation>
</taxonomicName>
in sharing similar forms of the body, mandible and maxilla, and the elongate caudal rami, five setae (rather than 4 setae as in other congeners) on the first antennular segment, and a seta on the basis of the antenna (
<taxonomicName id="4C234D7CFFD9ED6E5E2ED29BFDEFA621" authority="Kim, 2001" authorityName="Kim" authorityYear="2001" box="[343,563,1777,1802]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="tenuis">
<emphasis id="B957EAEDFFD9ED6E5E2ED29BFE65A622" box="[343,441,1778,1801]" italics="true" pageId="5" pageNumber="292">M. tenuis</emphasis>
<bibRefCitation id="EFB24B0EFFD9ED6E5EB8D298FDEFA621" author="Kim, I. - H." box="[449,563,1777,1802]" pageId="5" pageNumber="292" pagination="71 - 89" refId="ref7141" refString="Kim, I. - H. 2001. Redescription of Catinia plana Bocquet and Stock, 1957 and description of two new species of Myzomolgus (Copepoda, Poecilostomatoida, Catiniidae) associated with sipunculans in Korea. The Korean Journal of Systematic Zoology 17 (1): 71 - 89." type="journal article" year="2001">Kim, 2001</bibRefCitation>
</taxonomicName>
also has one seta on the basis, but other four congeners lack the seta). Nevertheless,
<taxonomicName id="4C234D7CFFD9ED6E5F81D35AFE74A661" authorityName="Kim" authorityYear="2021" box="[248,424,1842,1866]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="leptocercosus" status="n. sp.">
<emphasis id="B957EAEDFFD9ED6E5F81D35AFE74A661" box="[248,424,1842,1866]" italics="true" pageId="5" pageNumber="292">M. leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD9ED6E5ED6D35AFE3BA661" box="[431,487,1843,1866]" pageId="5" pageNumber="292" rank="species">n. sp.</taxonomicNameLabel>
and
<taxonomicName id="4C234D7CFFD9ED6E5D63D35AFD7CA661" box="[538,672,1842,1866]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="B957EAEDFFD9ED6E5D63D35AFD7CA661" box="[538,672,1842,1866]" italics="true" pageId="5" pageNumber="292">M. orientalis</emphasis>
</taxonomicName>
cannot be considered to be a same species, due to the significant differences between them, as follows: (1) the caudal ramus of
<taxonomicName id="4C234D7CFFD9ED6E5F9BD3FDFE4AA680" authorityName="Kim" authorityYear="2021" box="[226,406,1939,1963]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="leptocercosus" status="n. sp.">
<emphasis id="B957EAEDFFD9ED6E5F9BD3FDFE4AA680" box="[226,406,1939,1963]" italics="true" pageId="5" pageNumber="292">M. leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD9ED6E5EE7D3FAFE05A681" box="[414,473,1939,1962]" pageId="5" pageNumber="292" rank="species">n. sp.</taxonomicNameLabel>
are relatively longer than that of
<taxonomicName id="4C234D7CFFD9ED6E5FA6D3DDFEB5A6E0" box="[223,361,1971,1995]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="B957EAEDFFD9ED6E5FA6D3DDFEB5A6E0" box="[223,361,1971,1995]" italics="true" pageId="5" pageNumber="292">M. orientalis</emphasis>
</taxonomicName>
, 10.7 times longer than wide, compared to 7.14 times longer than wide in the latter species (
<bibRefCitation id="EFB24B0EFFD9ED6E5C49D54CFC74A016" author="Kim, I. - H." box="[816,936,293,317]" pageId="5" pageNumber="292" pagination="71 - 89" refId="ref7141" refString="Kim, I. - H. 2001. Redescription of Catinia plana Bocquet and Stock, 1957 and description of two new species of Myzomolgus (Copepoda, Poecilostomatoida, Catiniidae) associated with sipunculans in Korea. The Korean Journal of Systematic Zoology 17 (1): 71 - 89." type="journal article" year="2001">Kim, 2001</bibRefCitation>
); (2) the second segment of the antennule is armed with 14 setae in
<taxonomicName id="4C234D7CFFD9ED6E5B66D52FFB0DA076" authorityName="Kim" authorityYear="2021" box="[1055,1233,325,349]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="leptocercosus" status="n. sp.">
<emphasis id="B957EAEDFFD9ED6E5B66D52FFB0DA076" box="[1055,1233,325,349]" italics="true" pageId="5" pageNumber="292">M. leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD9ED6E5BA1D52FFACDA076" box="[1240,1297,326,349]" pageId="5" pageNumber="292" rank="species">n. sp.</taxonomicNameLabel>
in contrast to 11 setae in
<taxonomicName id="4C234D7CFFD9ED6E5CCFD50FFBE6A055" box="[950,1082,358,382]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="B957EAEDFFD9ED6E5CCFD50FFBE6A055" box="[950,1082,358,382]" italics="true" pageId="5" pageNumber="292">M. orientalis</emphasis>
</taxonomicName>
, as recorded by
<bibRefCitation id="EFB24B0EFFD9ED6E5B9AD50FFA81A055" author="Kim, I. - H." box="[1251,1373,358,382]" pageId="5" pageNumber="292" pagination="71 - 89" refId="ref7141" refString="Kim, I. - H. 2001. Redescription of Catinia plana Bocquet and Stock, 1957 and description of two new species of Myzomolgus (Copepoda, Poecilostomatoida, Catiniidae) associated with sipunculans in Korea. The Korean Journal of Systematic Zoology 17 (1): 71 - 89." type="journal article" year="2001">Kim (2001)</bibRefCitation>
; (3) all swimming legs of
<taxonomicName id="4C234D7CFFD9ED6E5B6ED5EEFB12A0B5" authorityName="Kim" authorityYear="2021" box="[1047,1230,390,414]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="leptocercosus" status="n. sp.">
<emphasis id="B957EAEDFFD9ED6E5B6ED5EEFB12A0B5" box="[1047,1230,390,414]" italics="true" pageId="5" pageNumber="292">M. leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD9ED6E5BAFD5EEFACEA0B5" box="[1238,1298,391,414]" pageId="5" pageNumber="292" rank="species">n. sp.</taxonomicNameLabel>
are armed with an inner coxal seta, whereas legs 3 and 4 of
<taxonomicName id="4C234D7CFFD9ED6E5A43D5CEFCB3A0F5" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="B957EAEDFFD9ED6E5A43D5CEFCB3A0F5" italics="true" pageId="5" pageNumber="292">M. orientalis</emphasis>
</taxonomicName>
lack the inner coxal seta; and (4) the first to third abdominal somites of the male of
<taxonomicName id="4C234D7CFFD9ED6E5BEAD58EFA99A0D4" authorityName="Kim" authorityYear="2021" box="[1171,1349,487,511]" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="leptocercosus" status="n. sp.">
<emphasis id="B957EAEDFFD9ED6E5BEAD58EFA99A0D4" box="[1171,1349,487,511]" italics="true" pageId="5" pageNumber="292">M. leptocercosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2645796FFD9ED6E5A34D58EFA5AA0D5" box="[1357,1414,487,510]" pageId="5" pageNumber="292" rank="species">n. sp.</taxonomicNameLabel>
are smooth, without any spinular ornamentation, but in
<taxonomicName id="4C234D7CFFD9ED6E5A10D661FC53A314" class="Copepoda" family="Catiniidae" genus="Myzomolgus" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="292" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="B957EAEDFFD9ED6E5A10D661FC53A314" italics="true" pageId="5" pageNumber="292">M. orientalis</emphasis>
</taxonomicName>
the first and second abdominal somites of the male are ornamented with a transverse row of spinules along the posteroventral border.
</paragraph>
</subSubSection>
</treatment>
</document>
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