treatments-xml/data/A5/E4/75/A5E4758EFFD45223859682A71425C8C2.xml
2024-06-21 12:46:36 +02:00

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<document ID-DOI="http://dx.doi.org/10.3897/BDJ.12.e116598" ID-Pensoft-Pub="1314-2828-12-e116598" ID-Pensoft-UUID="4D28F59C955350D88927D036C81E8298" ModsDocID="1314-2828-12-e116598" checkinTime="1708421117038" checkinUser="pensoft" docAuthor="Ismail, Norshida, Nishida, Yusuke, Ohtsuka, Susumu, Boxshall, Geoff &amp; Bernot, James P." docDate="2024" docId="A5E4758EFFD45223859682A71425C8C2" docLanguage="en" docName="BiodivDatJour 12: e116598" docOrigin="Biodiversity Data Journal 12" docPubDate="2024-02-20" docSource="http://dx.doi.org/10.3897/BDJ.12.e116598" docTitle="Caligus dussumieri Rangnekar 1957" docType="treatment" docVersion="1" id="4D28F59C955350D88927D036C81E8298" lastPageNumber="116598" masterDocId="4D28F59C955350D88927D036C81E8298" masterDocTitle="First record of Caligus dussumieri Rangnekar, 1957 (Copepoda, Siphonostomatoida, Caligidae) from Malaysia, with notes on caligids found from Malaysia and on host-specificity of caligids on lutjanid fishes" masterLastPageNumber="116598" masterPageNumber="116598" pageNumber="116598" updateTime="1708421117038" updateUser="pensoft">
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<mods:title id="8D09B5647E0BD4C05686A95EBE24B586">First record of Caligus dussumieri Rangnekar, 1957 (Copepoda, Siphonostomatoida, Caligidae) from Malaysia, with notes on caligids found from Malaysia and on host-specificity of caligids on lutjanid fishes</mods:title>
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<mods:namePart id="D05F0466AAB5E7CEDDC1F16FDCF611FF">Ismail, Norshida</mods:namePart>
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<mods:affiliation id="C79CFE02533FA7AA172596D3862D7456">Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin, 22200, Besut, Terengganu, Malaysia</mods:affiliation>
<mods:nameIdentifier id="2C519AF51E50B833B14EA2EB2D76BAF8" type="email">norshida@unisza.edu.my</mods:nameIdentifier>
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<mods:namePart id="B48853FD247DEC6EFC8A624898FE4F96">Nishida, Yusuke</mods:namePart>
<mods:affiliation id="41114B6F49BB34F57CF0BD8A89B3FC55">Graduate School of Integrated Sciences for Life, Hiroshima University, 1 - 4 - 4 Kagamiyama, Higashi-Hiroshima, 739 - 8528, Hiroshima, Japan</mods:affiliation>
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<mods:namePart id="9D9B41F94F3E5ACA42317092F26BFC81">Ohtsuka, Susumu</mods:namePart>
<mods:nameIdentifier id="2B5550910F7E95F1B1123AAAA7C39C38" type="ORCID">https://orcid.org/0000-0001-6018-7442</mods:nameIdentifier>
<mods:affiliation id="70FE5D546D15FB1D086254125354A35B">Blue Innovation Division, Seto Inland Sea Carbon Neutral Research Center, 5 - 8 - 1 Minato-machi, Takehara, 725 - 0024, Hiroshima, Japan &amp; Graduate School of Integrated Sciences for Life, Hiroshima University, 1 - 4 - 4 Kagamiyama, Higashi-Hiroshima, 739 - 8528, Hiroshima, Japan</mods:affiliation>
</mods:name>
<mods:name id="AA00AA9FF5C6C5FBE34F5F07BD593916" type="personal">
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<mods:namePart id="411945575A529E70D702CB76D6AA9569">Boxshall, Geoff</mods:namePart>
<mods:affiliation id="E8D30FDF07597B242970E95F70F53B3C">Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW 7 5 BD, UK., London, United Kingdom</mods:affiliation>
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<mods:namePart id="271405EF01BFD352840D3F4CFDCCCD61">Bernot, James P.</mods:namePart>
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<mods:affiliation id="CEC981E7F436A7125F7A9FE6DE0E1982">Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, 20560, Washington DC, United States of America &amp; Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, 06269, Connecticut, United States of America</mods:affiliation>
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<mods:date id="EA8BD97CE634C0ECDF8EDDF3B3F2A0D5">2024</mods:date>
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<treatment id="A5E4758EFFD45223859682A71425C8C2" LSID="urn:lsid:plazi:treatment:A5E4758EFFD45223859682A71425C8C2" httpUri="http://treatment.plazi.org/id/A5E4758EFFD45223859682A71425C8C2" lastPageNumber="116598" pageId="0" pageNumber="116598">
<subSubSection id="9DA417E2EFBC18F7F24E299E71ECBD48" pageId="0" pageNumber="116598" type="nomenclature">
<paragraph id="8534510018BC2DE3544E073350BF7BD5" pageId="0" pageNumber="116598">
<taxonomicName id="01B5575C9F46AEA2943B3EAF70A1A7AC" LSID="A5E4758E-FFD4-5223-8596-82A71425C8C2" authority="Rangnekar, 1957" authorityName="Rangnekar" authorityYear="1957" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">Caligus dussumieri Rangnekar, 1957</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="B52027717F3996B8B43DCAFD95E87098" pageId="0" pageNumber="116598" type="reference_group">
<paragraph id="CBFA73E480FB98065D39F5C756F26588" pageId="0" pageNumber="116598">
<taxonomicName id="8A02D0D088342F9A83E26603994963B5" authorityName="Rangnekar" authorityYear="1957" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">Caligus dussumieri</taxonomicName>
<taxonomicName id="B87121E478F99D0084A9D2DDB88AC8E7" baseAuthorityName="Rangnekar" baseAuthorityYear="1957" class="Copepoda" family="Caligidae" genus="Sinocaligus" kingdom="Animalia" lsidName="Sinocaligus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">
<emphasis id="762D074DFA3C65D2735C4744069801AA" italics="true" pageId="0" pageNumber="116598">Sinocaligus dussumieri</emphasis>
</taxonomicName>
(Rangnekar, 1957)
</paragraph>
<paragraph id="0555D7B4049797CF1940E4CD0B09BF07" pageId="0" pageNumber="116598">
<taxonomicName id="154C9C6E033B5E5A7ABC534B7BDB39F7" authorityName="Rangnekar" authorityYear="1957" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">Caligus dussumieri</taxonomicName>
<taxonomicName id="A0B5BC0BA9D2D824ACB10B8777294C1D" baseAuthorityName="Rangnekar" baseAuthorityYear="1957" class="Copepoda" family="Caligidae" genus="Pseudopetalus" kingdom="Animalia" lsidName="Pseudopetalus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">
<emphasis id="CC574F9A40A07F579EB1E0EA7D400823" italics="true" pageId="0" pageNumber="116598">Pseudopetalus dussumieri</emphasis>
</taxonomicName>
(Rangnekar, 1957)
</paragraph>
<paragraph id="FEEB529D603FB6F74569D8107D03B7DB" pageId="0" pageNumber="116598">
<taxonomicName id="6F180912A8B84B6AF948CC7FD0F8DFB1" authorityName="Rangnekar" authorityYear="1957" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">Caligus dussumieri</taxonomicName>
<taxonomicName id="8FA0A317EDC50C6972FE7CFAC54AE664" authorityName="Pilla, Vankara &amp; Chikkam" authorityYear="2012" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus rivulatus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="rivulatus">
<emphasis id="43D468BE1135C7C98460469101807A5E" italics="true" pageId="0" pageNumber="116598">Caligus rivulatus</emphasis>
</taxonomicName>
(Pilla, Vankara and Chikkam, 2012)
</paragraph>
</subSubSection>
<subSubSection id="480D56B3509A83CF5C221B7FA2EF3328" pageId="0" pageNumber="116598" type="materials_examined">
<paragraph id="13A4D87E9A730E1E2C9C5FC94178CE7A" pageId="0" pageNumber="116598">Materials</paragraph>
<paragraph id="FF2C9E0D07CEA3F7A500E731FEB789E7" pageId="0" pageNumber="116598">
<materialsCitation id="AA8E2B0AE320A1F032CD8589C13EA0FC" collectingDate="2024-01-01" collectingDateMax="2024-12-31" collectingDateMin="2024-01-01" collectingMethod="Gill wash" collectorName="Caligus Mueller O. F." country="China" latitude="5.3166666" location="Terengganu" longLatPrecision="925" longitude="103.12881" pageId="0" pageNumber="116598" specimenCount="1" stateProvince="Terengganu" typeStatus="Other material">
<emphasis id="D2FBA328A765954D3C20089CDD38E7FD" bold="true" pageId="0" pageNumber="116598">Type status:</emphasis>
<materialsCitation id="9AB983BB5A9D5F17189C499500F0D019" collectingDate="2024-01-01" collectingDateMax="2024-12-31" collectingDateMin="2024-01-01" collectingMethod="Gill wash" collectorName="Caligus Mueller O. F." country="China" latitude="5.3166666" location="Terengganu" longLatPrecision="925" longitude="103.12881" specimenCount="19" stateProvince="Terengganu" typeStatus="Other material">
<typeStatus id="B71A4AFC8E9F42EBB6CFB6EA191E1305" pageId="0" pageNumber="116598">Other material</typeStatus>
.
<emphasis id="46A34908DD1E673CD9CF63A1ECEA73FB" bold="true" pageId="0" pageNumber="116598">Occurrence:</emphasis>
occurrenceID:
<uuid id="8904DE0334493FB7FB80FBF42095D715">A71C4FDE-7825-5C4B-9023-C44E1AC10847</uuid>
;
<emphasis id="371B83D36786A230ABA6B73317EAB5D3" bold="true" pageId="0" pageNumber="116598">Taxon:</emphasis>
taxonID: 349612 (urn:lsid:marinespecies.org:taxname:349612); scientificName: Caligus dussumieri Rangnekar, 1957; parentNameUsage:
<collectorName id="B6CABD9C4748F9FC90C84E73BCBFC028">
Caligus
<normalizedToken id="B5AC9B5BC133B98F814A278A259D0DB5" originalValue="Müller">Mueller</normalizedToken>
O.F.
</collectorName>
, 1785; originalNameUsage: Caligus dussumieri Rangnekar, 1957; kingdom: Animalia; phylum: Arthropoda; class: Copepoda; order: Siphonostomatoida; family: Caligidae; genus: Caligus; specificEpithet: dussumieri; scientificNameAuthorship: Rangnekar, 1957; taxonomicStatus: Accepted;
<emphasis id="DBA58911CFE6C323F8FF0F414B92B0DF" bold="true" pageId="0" pageNumber="116598">Location:</emphasis>
higherGeography: South East Asia; continent: Asia; waterBody: South
<collectingCountry id="06BAD3081701F365C4214FEFDF6E35E8" name="China">China</collectingCountry>
Sea; country:
<collectingCountry id="AA0D21277C4D522ACEB543B853F4711F" name="Malaysia" pageId="0" pageNumber="116598">Malaysia</collectingCountry>
; stateProvince:
<collectingRegion id="12CF935FD9617B8FE9BAC53C1D8D47F1" country="Malaysia" name="Terengganu">Terengganu</collectingRegion>
; county: Kuala
<collectingRegion id="8186E07438820F9D25C6A8AAC61E0C96" country="Malaysia" name="Terengganu">Terengganu</collectingRegion>
; verbatimLocality: LKIM Pulau Kambing; verbatimCoordinates:
<geoCoordinate id="F2743CDBCFB652424EC871A2BB2D57CA" degrees="5" direction="north" minutes="19" orientation="latitude" precision="925" value="5.3166666">5°19'N</geoCoordinate>
<geoCoordinate id="2838F424F95C1D69F27FCAED2395C7E0" degrees="103" direction="east" minutes="7" orientation="longitude" precision="1" seconds="43.7" value="103.12881">103°7' 43.7&quot;E</geoCoordinate>
; verbatimLatitude: 5.321971; verbatimLongitude: 103.1288;
<emphasis id="FB0CC4FC046A22CABD6F241014B84221" bold="true" pageId="0" pageNumber="116598">Identification:</emphasis>
identificationID: urn:lsid:marinespecies.org:taxname:349612;
<emphasis id="096A2CB5A3132B3BEAC640B387E303BA" bold="true" pageId="0" pageNumber="116598">Event:</emphasis>
samplingProtocol:
<collectingMethod id="A4C8F598C2AB4D638FC341EA76B66FBC" pageId="0" pageNumber="116598">Gill wash</collectingMethod>
; year: 2019; month: 10; day:
<specimenCount id="BD082CA0F0A0ABF7F1FC4F546E6B6B69" count="19" type="generic">
19
<materialsCitation id="B67D3B1B3634AB7692EEF4FA02ACFCFD" collectingDate="2024-01-01" collectingDateMax="2024-12-31" collectingDateMin="2024-01-01" collectorName="Caligus Mueller O. F." country="Australia" latitude="-16.192" location="Western Australia" longLatPrecision="13" longitude="124.542" pageId="0" pageNumber="116598" specimenCount="1" stateProvince="Western Australia" typeStatus="Other material">
<emphasis id="229AAF6E5C8BBAE5E8B88C7F990A7AE1" bold="true" pageId="0" pageNumber="116598">Type status:</emphasis>
<materialsCitation id="794F1DB7C4CCD4493AA52216E8344FC3" collectingDate="2024-01-01" collectingDateMax="2024-12-31" collectingDateMin="2024-01-01" collectorName="Caligus Mueller O. F." country="Australia" latitude="-16.192" location="Western Australia" longLatPrecision="13" longitude="124.542" specimenCount="1" stateProvince="Western Australia" typeStatus="Other material">
<typeStatus id="AC72E66D8CFF8D142B501EDD1DCC900A" pageId="0" pageNumber="116598">Other material</typeStatus>
.
<emphasis id="300D6C980E45B7B5A4DEFFD91E502D87" bold="true" pageId="0" pageNumber="116598">Occurrence:</emphasis>
occurrenceID:
<uuid id="B06163AEF7AC45A79988DD523DE8A092">ADE72616-49DB-57BB-89BA-3948143646FA</uuid>
;
<emphasis id="318B7D126F0ACFE7AA3BAEF2D51BC14E" bold="true" pageId="0" pageNumber="116598">Taxon:</emphasis>
taxonID: 349612 (urn:lsid:marinespecies.org:taxname:349612); scientificName: Caligus dussumieri Rangnekar, 1957; parentNameUsage:
<collectorName id="79D97A089314769B280910B75400608D">
Caligus
<normalizedToken id="B4658D4B3E9D3FFCF3BF69A014153AE5" originalValue="Müller">Mueller</normalizedToken>
O.F.
</collectorName>
, 1785; originalNameUsage: Caligus dussumieri Rangnekar, 1957; kingdom: Animalia; phylum: Arthropoda; class: Copepoda; order: Siphonostomatoida; family: Caligidae; genus: Caligus; specificEpithet: dussumieri; scientificNameAuthorship: Rangnekar, 1957; taxonomicStatus: Accepted;
<emphasis id="2FA5C0E9FDB1F4621470DF68D24FCFEB" bold="true" pageId="0" pageNumber="116598">Location:</emphasis>
higherGeography:
<collectingCountry id="D7C0BABCB580627F24085F29854A16E7" name="Australia">Australia</collectingCountry>
; continent:
<collectingCountry id="ED4C59590F2E8B083E6CF81E5A33FCCB" name="Australia">Australia</collectingCountry>
; country:
<collectingCountry id="DAB9C14F8AED545C5F9E12212ED0E2AB" name="Australia" pageId="0" pageNumber="116598">Australia</collectingCountry>
; county: Camden Sound; locality:
<location id="4E159D629940F9F4760C54D14A1964B5" LSID="urn:lsid:plazi:treatment:A5E4758EFFD45223859682A71425C8C2:4E159D629940F9F4760C54D14A1964B5" country="Australia" latitude="-16.192" longLatPrecision="13" longitude="124.542" name="Western Australia" pageId="0" pageNumber="116598" stateProvince="Western Australia">
<collectingRegion id="83A8E4AC495996E18A72741EBD17FC3D" country="Australia" name="Western Australia">Western Australia</collectingRegion>
</location>
; verbatimCoordinates:
<geoCoordinate id="F02BC80635D98012F33F352E743B40B4" degrees="16" direction="south" minutes="11.52" orientation="latitude" precision="9" value="-16.192">16° 11.52'S</geoCoordinate>
<geoCoordinate id="43B01C3A37BE3E521FA283983906B389" degrees="124" direction="east" minutes="32.52" orientation="longitude" precision="9" value="124.542">124° 32.52'E</geoCoordinate>
;
<emphasis id="14F2A6E5DC0D8687D534A13217977EB8" bold="true" pageId="0" pageNumber="116598">Identification:</emphasis>
identificationID: urn:lsid:marinespecies.org:taxname:349612;
<emphasis id="9DA2C36667CA42980ECF24650C53BC8B" bold="true" pageId="0" pageNumber="116598">Event:</emphasis>
year: 2013; month: 9; day: 11;
<emphasis id="55EFD512081C8F40C58D65D931773D3E" bold="true" pageId="0" pageNumber="116598">Record Level:</emphasis>
institutionCode: NHMUK; collectionCode: Reg. Nos. 2022.189-197
</materialsCitation>
</materialsCitation>
</specimenCount>
</materialsCitation>
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="4CA4EFF71B0FC939D7DB3089C9E10A16" pageId="0" pageNumber="116598" type="description">
<paragraph id="6C90B67AE708B5E5C6177E9A432D8340" pageId="0" pageNumber="116598">Description</paragraph>
<paragraph id="83D758A26ED4AD4F002D93CD95AE8827" pageId="0" pageNumber="116598">
Fig.
<figureCitation id="5E63638C96917167825EF109F8FDC691" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
</paragraph>
<paragraph id="58F8EE4F48BD56720667EBD97B52E3B3" pageId="0" pageNumber="116598">
<emphasis id="54C2302B6827BD6FB7E61E0745BA7CB9" bold="true" pageId="0" pageNumber="116598">Female.</emphasis>
Body (Fig.
<figureCitation id="D1E88068299B7CD4FC4B3EA6F97F5C2E" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
A) 3.24 mm long, excluding setae on caudal ramus. Dorsal cephalothoracic shield subcircular, slightly longer than wide. 1.31 x 1.12 mm, excluding hyaline membrane along lateral margins. Shield tapering anteriorly; with large, conspicuous lunules. Fourth pediger wider than long, incompletely fused to genital complex. Genital complex about 1.96 times longer than wide with neck-like narrow part anteriorly and barrel-shaped posterior region. Leg 5 (Fig.
<figureCitation id="A259DE2036D0880460C3DD69DE73A047" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
A) represented by 1 plumose, outer protopodal seta and 2 plumose setae on exopodal papilla located on posterolateral margin of genital complex. Abdomen 1-segmented, about 2.8 times longer than wide. Caudal ramus (Fig.
<figureCitation id="DA4BDD87EA631716F892EC732BEF533E" captionStart="Figure 2" captionStartId="F10815267" captionText="Figure 2. CLSM images of Caligus dussumieri Rangnekar, 1957. A Exopod of leg 1, showing spinular ornamentation on plumose setae along posterior margin; B Rami of leg 2 showing ornamentation on outer margin of endopod and spatulate spine on first exopodal segment." figureDoi="10.3897/BDJ.12.e116598.figure2" httpUri="https://binary.pensoft.net/fig/932843" pageId="0" pageNumber="116598">2</figureCitation>
C) oval, 0.10 x 0.07 mm, expanded inwards distally; armed with 3 short and 3 long plumose setae and ornamented with row of setules along distomedial margin.
</paragraph>
<paragraph id="201B3F846AD269C976D1A00950BE2443" pageId="0" pageNumber="116598">
Australian female observed using CLSM (Fig.
<figureCitation id="4178878868BC01BB1680EED5C03A84B0" captionStart="Figure 3" captionStartId="F10815263" captionText="Figure 3. CLSM images of Caligus dussumieri Rangnekar, 1957. A dorsal view; B ventral view." figureDoi="10.3897/BDJ.12.e116598.figure3" httpUri="https://binary.pensoft.net/fig/932840" pageId="0" pageNumber="116598">3</figureCitation>
A, B) showing differential degree of staining over body surface. Dorsal cephalothoracic shield staining moderately and evenly, with heavier uptake of stain marking sutures anteriorly near origin of antennules, in area near eyes and along lateral edges of central thoracic zone of shield. Ventral curved rib marking boundary of cephalosome and incorporated first pediger strongly stained. Fourth pediger and fourth leg staining evenly. Genital complex and abdomen displaying marked differences in intensity of staining. Staining intense in small ovoid patch on dorsal surface of genital complex towards the posterior end, ventrally around the genital apertures and in the posterior part of the abdomen. Conversely, staining very light in other areas of genital complex and anterior part of abdomen.
</paragraph>
<paragraph id="001C9B14CAF4D93FF454E8A2755F6A8C" pageId="0" pageNumber="116598">
Antennule (Fig.
<figureCitation id="5C72D554A11FAD71D5CC2CB10E915E7F" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
B) 2-segmented; proximal segment carrying 27 plumose setae on anterodistal surface, 25 setose plus 2 naked (on dorsal side) setae; distal segment short with 1 subterminal seta on posterior margin and 11 setae plus 2 aesthetascs around apex. Antenna (Fig.
<figureCitation id="40E900B24BD6EB56795A04291F5848CA" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
C) 3-segmented; proximal segment smallest, with short blunt process on posteromedial corner; middle segment subrectangular, unarmed; distal segment forming long, curved claw armed with stout proximal seta and simple middle seta. Postantennal process (Fig.
<figureCitation id="54E2575EE7AC312E73C1082C175CA5EA" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
C) shorter than distal segment, tine curved inwards with blunt tip, ornamented with 2 multisensillate papillae on basal region and another multisensillate papillae present on sternum adjacent to base of process. Additional lobate process present between postantennal process and base of antenna. Mandible (Fig.
<figureCitation id="EA660318AE719E514EE1C69AE85668ED" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
D) stylet-like, with 4 sections, bearing 12 teeth on medial margin of distal blade. Maxillule (Fig.
<figureCitation id="6E1A93CF309B5D2116A68B9466C2D6A6" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
C) comprising large stout dentiform process and basal papilla with 3 setae (1 short, 1 medium and 1 long). Maxilla (Fig.
<figureCitation id="7D2C8BC6FEBCEC06C0C251373B8B1249" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
E) 2-segmented; lacertus large and unarmed; slender distal segment (brachium) bearing rounded membranous subapical flabellum on anterior margin and terminating in 2 subequal claw-like elements (calamus and canna). Calamus longer than canna, ornamented with strips of serrated membrane arranged obliquely around surface; canna ornamented with strips of serrated membrane bilaterally. Maxilliped (Fig.
<figureCitation id="C9136F6E9951AB76E46DDA361F07E91D" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
F) 3-segmented; proximal segment (corpus) largest, unarmed, 2 unequal processes along myxal area, longer than next 2 segments combined (subchela); middle segment unarmed; distal claw longer than shaft, sharply pointed with long seta at base of claw. Sternal furca (Fig.
<figureCitation id="3D74BE1D4373206C075F2739FFE2A841" captionStart="Figure 1" captionStartId="F10815261" captionText="Figure 1. Caligus dussumieri Rangnekar, 1957, adult female. A Habitus, dorsal view; B Antennule; C Antenna; D Mandible; E Maxilla; F Maxilliped; G Sternal furca." figureDoi="10.3897/BDJ.12.e116598.figure1" httpUri="https://binary.pensoft.net/fig/932839" pageId="0" pageNumber="116598">1</figureCitation>
G) subrectangular, box with tiny rounded outgrowth anteriorly, tines blunt and weakly divergent.
</paragraph>
<paragraph id="707BD83AA31A2BF05DA3CA2EAAE16CC5" pageId="0" pageNumber="116598">
Leg 1 (Fig.
<figureCitation id="427E1EB4F005317A3A1615F982A06B85" captionStart="Figure 4" captionStartId="F10815265" captionText="Figure 4. Caligus dussumieri Rangnekar, 1957 adult female. A Leg 1, a Four terminal elements of Leg 1; B Leg 2." figureDoi="10.3897/BDJ.12.e116598.figure4" httpUri="https://binary.pensoft.net/fig/936448" pageId="0" pageNumber="116598">4</figureCitation>
A, Fig.
<figureCitation id="B5BB86B1D086C75595A1CC25D8A1238A" captionStart="Figure 2" captionStartId="F10815267" captionText="Figure 2. CLSM images of Caligus dussumieri Rangnekar, 1957. A Exopod of leg 1, showing spinular ornamentation on plumose setae along posterior margin; B Rami of leg 2 showing ornamentation on outer margin of endopod and spatulate spine on first exopodal segment." figureDoi="10.3897/BDJ.12.e116598.figure2" httpUri="https://binary.pensoft.net/fig/932843" pageId="0" pageNumber="116598">2</figureCitation>
A) with 2 segmented protopod bearing 1 inner and 1 outer small plumose seta plus bifid setule on outer margin. Intercoxal sclerite slender, with 2 papillae each bearing a setule present on sternum posterior to sclerite. Vestigial endopod reduced to tiny, pointed process located near base of exopod. Exopod 2-segmented, first segment with row of fine setules along inner margin and spiniform seta at outer distal corner; second segment with 3 large plumose setae ornamented along outer margin with stout spinules at base becoming finer towards tip and with short plumosities along inner margin; 4 terminal elements, spine 1 simple, spines 2 and 3 each with accessory process (Fig.
<figureCitation id="737D73DFE9A3155F037AB58B83624AE7" captionStart="Figure 4" captionStartId="F10815265" captionText="Figure 4. Caligus dussumieri Rangnekar, 1957 adult female. A Leg 1, a Four terminal elements of Leg 1; B Leg 2." figureDoi="10.3897/BDJ.12.e116598.figure4" httpUri="https://binary.pensoft.net/fig/936448" pageId="0" pageNumber="116598">4</figureCitation>
a), seta 4 longest, stout and pinnate on only one side. Leg 2 (Fig.
<figureCitation id="280AEAD5966D77B0210B860B5F468B4B" captionStart="Figure 4" captionStartId="F10815265" captionText="Figure 4. Caligus dussumieri Rangnekar, 1957 adult female. A Leg 1, a Four terminal elements of Leg 1; B Leg 2." figureDoi="10.3897/BDJ.12.e116598.figure4" httpUri="https://binary.pensoft.net/fig/936448" pageId="0" pageNumber="116598">4</figureCitation>
B, Fig.
<figureCitation id="DB0D146530725412104886CF8285D0C4" captionStart="Figure 2" captionStartId="F10815267" captionText="Figure 2. CLSM images of Caligus dussumieri Rangnekar, 1957. A Exopod of leg 1, showing spinular ornamentation on plumose setae along posterior margin; B Rami of leg 2 showing ornamentation on outer margin of endopod and spatulate spine on first exopodal segment." figureDoi="10.3897/BDJ.12.e116598.figure2" httpUri="https://binary.pensoft.net/fig/932843" pageId="0" pageNumber="116598">2</figureCitation>
B) with intercoxal sclerite ornamented with 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 medial margins, bearing minute seta at outer distal corner plus setule near mid-point of inner margin. Endopod 3-segmented: first segment armed with inner plumose seta and ornamented with large denticles at outer distal corner; second segment with 2 inner distal setae plus row of robust denticles along outer margin; third segment with 6 plumose setae. Exopod 3-segmented: first segment with reflexed membrane dorsally and with pecten at base of long, stout, outer spine with spatulate tip extending obliquely across surface of second and third segments; second segment with relatively short outer spine, third segment armed with 1 small and 1 medium outer spine (latter ornamented with extensive marginal membrane), longer distal spine ornamented with membrane on outer side and plumosities on inner side, plus 5 plumose setae. Leg 3 (Fig.
<figureCitation id="AE7F99DBD1975262D387C5BB0E78026C" captionStart="Figure 5" captionStartId="F10852501" captionText="Figure 5. Caligus dussumieri Rangnekar, 1957, adult female. A Leg 3, a Proximal segment of leg 3 exopod; B Leg 4, b Distal elements of Leg 4 second segment." figureDoi="10.3897/BDJ.12.e116598.figure5" httpUri="https://binary.pensoft.net/fig/936449" pageId="0" pageNumber="116598">5</figureCitation>
A) apron (protopod) bearing small, plumose outer seta and long, plumose inner seta and ornamented with membrane along outer and posterior margins, 4 patches of spinules plus 2 setule-bearing papillae on either side of innermost patch, plus 2 relatively long setules near posterior margin. Endopod 2-segmented, proximal segment small, armed with 1 long plumose seta; segment expanded to form velum fringed with setules along free margin; second segment armed with 6 plumose setae. Exopod 3-segmented, proximal segment small, with pecten-like membrane on inner margin of segment and with an expanded outer distal corner ornamented with strip of membrane located lateral to outer spine plus minute setule on outer margin, outer distal spine slightly curved, not reaching distal border of second segment (Fig.
<figureCitation id="FA2399747DE75129722BF3F1B2EE79FC" captionStart="Figure 5" captionStartId="F10852501" captionText="Figure 5. Caligus dussumieri Rangnekar, 1957, adult female. A Leg 3, a Proximal segment of leg 3 exopod; B Leg 4, b Distal elements of Leg 4 second segment." figureDoi="10.3897/BDJ.12.e116598.figure5" httpUri="https://binary.pensoft.net/fig/936449" pageId="0" pageNumber="116598">5</figureCitation>
a); second segment with inner plumose seta and outer naked spine; third segment with 3 setiform spines increasing in size distally plus 4 inner setae. Leg 4 (Fig.
<figureCitation id="8E29D19B32018112A5BFB09D2A60747B" captionStart="Figure 5" captionStartId="F10852501" captionText="Figure 5. Caligus dussumieri Rangnekar, 1957, adult female. A Leg 3, a Proximal segment of leg 3 exopod; B Leg 4, b Distal elements of Leg 4 second segment." figureDoi="10.3897/BDJ.12.e116598.figure5" httpUri="https://binary.pensoft.net/fig/936449" pageId="0" pageNumber="116598">5</figureCitation>
B) plumose seta at outer distal corner of protopodal segment; exopod distinctly 2-segmented, first exopodal segment with long outer spine; second segment with 4 spines along oblique outer distal margin; each spine with pecten at base (Fig.
<figureCitation id="038B28BD69400B126F3CB86430340387" captionStart="Figure 5" captionStartId="F10852501" captionText="Figure 5. Caligus dussumieri Rangnekar, 1957, adult female. A Leg 3, a Proximal segment of leg 3 exopod; B Leg 4, b Distal elements of Leg 4 second segment." figureDoi="10.3897/BDJ.12.e116598.figure5" httpUri="https://binary.pensoft.net/fig/936449" pageId="0" pageNumber="116598">5</figureCitation>
b).
</paragraph>
</subSubSection>
<subSubSection id="652CE6A64CCD86615CA75533B466BBEE" pageId="0" pageNumber="116598" type="taxon discussion">
<paragraph id="28E3CBD1E3254C95774775485A377B96" pageId="0" pageNumber="116598">Taxon discussion</paragraph>
<paragraph id="63DEB21845D76B82CB0603A3A1D725EA" pageId="0" pageNumber="116598">
The initial description of
<taxonomicName id="4CEB541D41E6B39CC63F122C416DC52A" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="621E89A6196E8DB437DB775077102349" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
was provided by
<bibRefCitation id="5E5335199BFF894625263CCA214AAB31" author="Rangnekar, M. P." journalOrPublisher="Journal of the University of Bombay B" pageId="0" pageNumber="116598" pagination="16 - 22" refId="B10755711" refString="Rangnekar, M. P., 1957. Caligus dasyaticus sp. nov. and Caligus dussumieri sp. nov. (Copepoda) parasitic on Bombay fishes. Journal of the University of Bombay B 25 (5): 16 - 22" title="Caligus dasyaticus sp. nov. and Caligus dussumieri sp. nov. (Copepoda) parasitic on Bombay fishes." volume="25" year="1957">Rangnekar (1957)</bibRefCitation>
. It was later transferred by
<bibRefCitation id="BE6FC7E6CC9E2042718EBD92825E0D21" author="Pillai, N. K." journalOrPublisher="Parasitology" pageId="0" pageNumber="116598" pagination="9 - 36" refId="B10755680" refString="Pillai, N. K., 1968. Additions to the copepod parasites of South Indian fishes. Parasitology 58 (1): 9 - 36" title="Additions to the copepod parasites of South Indian fishes" volume="58" year="1968">Pillai (1968)</bibRefCitation>
to his new genus
<taxonomicName id="FF6919CF3A5A1102F66C99117679383C" authorityName="Pillai" authorityYear="1962" class="Copepoda" family="Caligidae" genus="Pseudopetalus" kingdom="Animalia" lsidName="Pseudopetalus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="genus">
<emphasis id="9B9F8C5C3DB8981978CDC09F991A27EC" italics="true" pageId="0" pageNumber="116598">Pseudopetalus</emphasis>
</taxonomicName>
Pillai, 1968, as
<taxonomicName id="97E500B463AA732D3B501B408A0ABDBE" baseAuthorityName="Rangnekar" baseAuthorityYear="1957" class="Copepoda" family="Caligidae" genus="Pseudopetalus" kingdom="Animalia" lsidName="Pseudopetalus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">
<emphasis id="1D28E88A5A2C9CB9922A9E8B657C3CB3" italics="true" pageId="0" pageNumber="116598">Pseudopetalus dussumieri</emphasis>
</taxonomicName>
, but was subsequently transferred to
<taxonomicName id="00BCDE3D0C5804114E96D763FA2E2BB4" authorityName="Shen" authorityYear="1957" class="Copepoda" family="Caligidae" genus="Sinocaligus" kingdom="Animalia" lsidName="Sinocaligus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="genus">
<emphasis id="7D77CCC2C7CA4D02C5519C5C3F187B9C" italics="true" pageId="0" pageNumber="116598">Sinocaligus</emphasis>
</taxonomicName>
<bibRefCitation id="B82D363603AA7DED44FBCBA63421BF04" author="Shen, C. J." journalOrPublisher="Acta Zoologica Sinica" pageId="0" pageNumber="116598" pagination="1 - 11" refId="B10755729" refString="Shen, C. J., 1957. Parasitic copepods from fishes of China. Part II. Caligoida, Caligidae (1). Acta Zoologica Sinica 9 (4): 1 - 11" title="Parasitic copepods from fishes of China. Part II. Caligoida, Caligidae (1)" volume="9" year="1957">Shen 1957</bibRefCitation>
as
<taxonomicName id="329F1E667704FD92DF50EACA7576A528" baseAuthorityName="Rangnekar" baseAuthorityYear="1957" class="Copepoda" family="Caligidae" genus="Sinocaligus" kingdom="Animalia" lsidName="Sinocaligus dussumieri" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="dussumieri">
<emphasis id="4BDE17BFEA302708BA3A955707393A6E" italics="true" pageId="0" pageNumber="116598">Sinocaligus dussumieri</emphasis>
</taxonomicName>
after
<taxonomicName id="6F8D92BFDA8057E7997653AA11BB08CB" authorityName="Pillai" authorityYear="1962" class="Copepoda" family="Caligidae" genus="Pseudopetalus" kingdom="Animalia" lsidName="Pseudopetalus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="genus">
<emphasis id="75340273FE1AA6036B6A72C3103B8187" italics="true" pageId="0" pageNumber="116598">Pseudopetalus</emphasis>
</taxonomicName>
was recognised as a junior synonym of
<taxonomicName id="8FD4D1DF81CB32CF690279C8B671450F" authorityName="Shen" authorityYear="1957" class="Copepoda" family="Caligidae" genus="Sinocaligus" kingdom="Animalia" lsidName="Sinocaligus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="genus">
<emphasis id="6D8DFCE90D26DEEA123074D839E91161" italics="true" pageId="0" pageNumber="116598">Sinocaligus</emphasis>
</taxonomicName>
(
<bibRefCitation id="E0A53D78777416357F1A3C5B098854DF" author="Boxshall, G. A" journalOrPublisher="Nauplius" pageId="0" pageNumber="116598" pagination="1 - 225" refId="B10755312" refString="Boxshall, G. A, Montu, M. A., 1997. Copepods parasitic on Brazilian coastal fishes: a handbook. Nauplius 5 (1): 1 - 225" title="Copepods parasitic on Brazilian coastal fishes: a handbook" volume="5" year="1997">Boxshall and Montu 1997</bibRefCitation>
,
<bibRefCitation id="ADDED585064E888062A00CA1877180B0" author="Dojiri, M" journalOrPublisher="Systematics of the Caligidae, Copepods Parasitic on Marine Fishes" pageId="0" pageNumber="116598" refId="B10755383" refString="Dojiri, M, Ho, J. S, 2013. . Systematics of the Caligidae, Copepods Parasitic on Marine Fishes Vol. 18" volume="Vol. 18" year="2013">Dojiri and Ho 2013</bibRefCitation>
). In a recent comprehensive revision by
<bibRefCitation id="85D33A59F78CC144B415595688C93DF3" author="Boxshall, G. A" journalOrPublisher="Systematic Parasitology" pageId="0" pageNumber="116598" pagination="487 - 504" refId="B10755330" refString="Boxshall, G. A, Barton, D. P., 2023. Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785. Systematic Parasitology 100: 487 - 504" title="Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785" volume="100" year="2023">Boxshall and Barton (2023)</bibRefCitation>
, the complex taxonomic history of
<taxonomicName id="1C6C42BD65C112D0C5239F89D91D71B4" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="5FE464FEF46B598576CA3F0CDA6C1E66" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
was thoroughly examined. They proposed to recognise
<taxonomicName id="E3ECA944827DAC97A71DA412133F36A4" authorityName="Shen" authorityYear="1957" class="Copepoda" family="Caligidae" genus="Sinocaligus" kingdom="Animalia" lsidName="Sinocaligus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="genus">
<emphasis id="00FAC16AA1071BACFA771ECFB1F90272" italics="true" pageId="0" pageNumber="116598">Sinocaligus</emphasis>
</taxonomicName>
as a junior subjective synonym of
<taxonomicName id="685B7B24EF505095E2B667E5818C204D" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="genus">
<emphasis id="D2FDA33AC4958C99868FED402D5D4423" italics="true" pageId="0" pageNumber="116598">Caligus</emphasis>
</taxonomicName>
and returned
<taxonomicName id="AAA9AC99C927D647E8ABE3A8262781DE" lsidName="S. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="A330DAAE091A39A192DBE6067C94C5B2" italics="true" pageId="0" pageNumber="116598">S. dussumieri</emphasis>
</taxonomicName>
to its original combination as
<taxonomicName id="3A17A286FE60E8F0FB527D863870AAC4" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="6EC51DDE3FC5B763439FEDA87CF3A0F8" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
.
<bibRefCitation id="310DDD9E59639F681F4AEC122027356B" author="Boxshall, G. A" journalOrPublisher="Systematic Parasitology" pageId="0" pageNumber="116598" pagination="487 - 504" refId="B10755330" refString="Boxshall, G. A, Barton, D. P., 2023. Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785. Systematic Parasitology 100: 487 - 504" title="Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785" volume="100" year="2023">Boxshall and Barton (2023)</bibRefCitation>
also recognised
<taxonomicName id="732295769490E23B216AC1C2411749E6" authorityName="Pilla, Vankara &amp; Chikkam" authorityYear="2012" class="Hexanauplia" family="Caligidae" genus="Caligus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caligus rivulatus" order="Siphonostomatoida" pageId="0" pageNumber="116598" phylum="Arthropoda" rank="species" species="rivulatus">
<emphasis id="A9E19E5E3B4DE6A6A1132272DCA33536" italics="true" pageId="0" pageNumber="116598">Caligus rivulatus</emphasis>
</taxonomicName>
Pilla, Vankara and Chikkam, 2012, described from
<taxonomicName id="EB61EA9D3B629A04BE4D42BCA6F5EA8F" baseAuthorityName="Cuvier" baseAuthorityYear="1828" class="Pisces" family="Lutjanidae" genus="Lutjanus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lutjanus rivulatus" order="Perciformes" pageId="0" pageNumber="116598" phylum="Chordata" rank="species" species="rivulatus">
<emphasis id="0883ED90070E8593365B78499E915B32" italics="true" pageId="0" pageNumber="116598">Lutjanus rivulatus</emphasis>
</taxonomicName>
Cuvier, 1828 in Indian waters, as a junior subjective synonym of
<taxonomicName id="DE2312F4A5F2F211423FD758E08C5BFB" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="7B8EEFE8BA58205963C39C179513964F" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
. The Malaysian specimen was identified as a mature pre-metamorphic female due to the presence of elongated and slender genital complex and abdomen, which corresponds closely with the developmental stage described in the previous studies by
<bibRefCitation id="F1DDE2D789F7FB638166180352ABA0B5" author="Pilla, S." journalOrPublisher="Cibtech Journal of Zoology" pageId="0" pageNumber="116598" pagination="16 - 24" refId="B10755702" refString="Pilla, S., Vankara, A. P., Chikkam, V., 2012. Copepod parasites of snappers, Lutjanus spp (Pisces, Lutjanidae) with description of a new caligid copepod, Caligus rivulatus sp. nov. (Copepoda, Caligidae) from Visakhapatnam coast, India. Cibtech Journal of Zoology 1: 16 - 24" title="Copepod parasites of snappers, Lutjanus spp (Pisces, Lutjanidae) with description of a new caligid copepod, Caligus rivulatus sp. nov. (Copepoda, Caligidae) from Visakhapatnam coast, India" volume="1" year="2012">Pilla et al. (2012)</bibRefCitation>
and
<bibRefCitation id="5D38B2D06E3621BF746BE8832B4172A6" author="Boxshall, G. A" journalOrPublisher="Systematic Parasitology" pageId="0" pageNumber="116598" pagination="487 - 504" refId="B10755330" refString="Boxshall, G. A, Barton, D. P., 2023. Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785. Systematic Parasitology 100: 487 - 504" title="Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785" volume="100" year="2023">Boxshall and Barton (2023)</bibRefCitation>
. This particular specimen measured 3.24 mm in total length, a measurement consistent with the total length range of
<taxonomicName id="EBC08675566B980D8F3FE7B057985545" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="F62F95E5B38AB728598AF8BD5F0D4E08" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
, referred to as
<taxonomicName id="5A75199370B5829D1F7056F14B4273A1" lsidName="C. rivulatus" pageId="0" pageNumber="116598" rank="species" species="rivulatus">
<emphasis id="3FA516819C15C55C14EF74376199B6FF" italics="true" pageId="0" pageNumber="116598">C. rivulatus</emphasis>
</taxonomicName>
by
<bibRefCitation id="4507CB2DD8C550A61C50393CF7067B31" author="Pilla, S." journalOrPublisher="Cibtech Journal of Zoology" pageId="0" pageNumber="116598" pagination="16 - 24" refId="B10755702" refString="Pilla, S., Vankara, A. P., Chikkam, V., 2012. Copepod parasites of snappers, Lutjanus spp (Pisces, Lutjanidae) with description of a new caligid copepod, Caligus rivulatus sp. nov. (Copepoda, Caligidae) from Visakhapatnam coast, India. Cibtech Journal of Zoology 1: 16 - 24" title="Copepod parasites of snappers, Lutjanus spp (Pisces, Lutjanidae) with description of a new caligid copepod, Caligus rivulatus sp. nov. (Copepoda, Caligidae) from Visakhapatnam coast, India" volume="1" year="2012">Pilla et al. (2012)</bibRefCitation>
, ranging from 2.36 to 3.12 mm. Similarly, it exhibited a comparable total length to the Australian specimens, which measured between 3.05 and 3.65 mm.
</paragraph>
<paragraph id="8DEAEB362B10F31F05907286B813DA4B" pageId="0" pageNumber="116598">
In comparison to the recent re-description of
<taxonomicName id="B0BE83B64886FF2050DBB3DB0A6DB2B3" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="42305B75F0DAE9CF36EF3EB3274C4A67" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
from Australian waters as provided by
<bibRefCitation id="68816B51DB65C98D88B9FD9AC1BC1D40" author="Boxshall, G. A" journalOrPublisher="Systematic Parasitology" pageId="0" pageNumber="116598" pagination="487 - 504" refId="B10755330" refString="Boxshall, G. A, Barton, D. P., 2023. Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785. Systematic Parasitology 100: 487 - 504" title="Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Mueller, 1785" volume="100" year="2023">Boxshall and Barton (2023)</bibRefCitation>
, the
<taxonomicName id="A354E94468928C81BB97AB91735FFC53" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="209C7FEAF027E66C98664795DEF3E916" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
specimens from Malaysia displayed subtle differences including the presence of a neck-like constriction in the anterior part of the genital complex and the more barrel-shaped genital complex, features also observed in
<taxonomicName id="DAA9A3118D8D4D5888A21E956C95FC5D" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="144457B717A67F8B26CEB9F12C58640D" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
from Indian waters (
<bibRefCitation id="72CA57CC75A27B032226CEFB0EE9666C" author="Rangnekar, M. P." journalOrPublisher="Journal of the University of Bombay B" pageId="0" pageNumber="116598" pagination="16 - 22" refId="B10755711" refString="Rangnekar, M. P., 1957. Caligus dasyaticus sp. nov. and Caligus dussumieri sp. nov. (Copepoda) parasitic on Bombay fishes. Journal of the University of Bombay B 25 (5): 16 - 22" title="Caligus dasyaticus sp. nov. and Caligus dussumieri sp. nov. (Copepoda) parasitic on Bombay fishes." volume="25" year="1957">Rangnekar 1957</bibRefCitation>
,
<bibRefCitation id="1B228446CB725280BE97CE63CA82BBCD" author="Pillai, N. K." journalOrPublisher="Proceedings of the Symposium on Crustacea. Symposium Series, Marine Biological Association of India" pageId="0" pageNumber="116598" pagination="1 - 266" refId="B10755671" refString="Pillai, N. K., 1967. Copepods parasitic on Indian marine fishes. A review. Proceedings of the Symposium on Crustacea. Symposium Series, Marine Biological Association of India 5 (1556-1680): 1 - 266" title="Copepods parasitic on Indian marine fishes. A review" volume="5" year="1967">Pillai 1967</bibRefCitation>
,
<bibRefCitation id="18B063D4334AFA8668EE76FBE8CEB8BF" author="Pilla, S." journalOrPublisher="Cibtech Journal of Zoology" pageId="0" pageNumber="116598" pagination="16 - 24" refId="B10755702" refString="Pilla, S., Vankara, A. P., Chikkam, V., 2012. Copepod parasites of snappers, Lutjanus spp (Pisces, Lutjanidae) with description of a new caligid copepod, Caligus rivulatus sp. nov. (Copepoda, Caligidae) from Visakhapatnam coast, India. Cibtech Journal of Zoology 1: 16 - 24" title="Copepod parasites of snappers, Lutjanus spp (Pisces, Lutjanidae) with description of a new caligid copepod, Caligus rivulatus sp. nov. (Copepoda, Caligidae) from Visakhapatnam coast, India" volume="1" year="2012">Pilla et al. 2012</bibRefCitation>
). As discussed below, we consider these differences can be explained by the pre-metamorphic stage of development of these sets of specimens.
</paragraph>
<paragraph id="38001F58218DB30910D7EACFCC8E7300" pageId="0" pageNumber="116598">
Another minor difference was noted regarding the postantennal process. In the current study,
<taxonomicName id="391C41BEE21A213296950214E5BB37E8" lsidName="C. dussumieri" pageId="0" pageNumber="116598" rank="species" species="dussumieri">
<emphasis id="C55F1B1CC426E9FEE379C1FFD4D73338" italics="true" pageId="0" pageNumber="116598">C. dussumieri</emphasis>
</taxonomicName>
possessed trisensillate papillae, consistent with the description of
<bibRefCitation id="45BD1D6A216EBCE03A6236B769219BDF" author="Pillai, N. K." journalOrPublisher="Zoological Society of India, Calcutta" pageId="0" pageNumber="116598" refId="B10755689" refString="Pillai, N. K., 1985. The Fauna of India. Zoological Society of India, Calcutta" title="The Fauna of India" year="1985">Pillai (1985)</bibRefCitation>
, while the Australian specimens exhibited bisensillate papillae. In addition, a rounded, lobate process was present between the postantennal process and the base of the antenna in the Malaysian female. The female from Malaysia lacked the patch of small setules at the base of the inner protopodal seta of leg 1, present in the other specimens. Furthermore, the tips of spines 2 and 3 on the distal exopodal segment of leg 1 were ornamented with a row of serrations, distinguishing them from previously described specimens from India and Australia.
</paragraph>
<paragraph id="BD4796CB2E2C39D0EBD62F030D4358B8" pageId="0" pageNumber="116598">A pecten-like structure at the outer distal corner of the first exopodal segment of leg 3 was observed in the present specimen, but this feature was not illustrated in previous studies. However, this structure's presence in the Australian material was subsequently confirmed through additional observations of Australian specimens in this study.</paragraph>
</subSubSection>
</treatment>
</document>