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<document id="30FFD135B93D4F87ADB9A7701A55B5A5" ID-CLB-Dataset="30482" ID-DOI="10.11646/zootaxa.4398.1.1" ID-GBIF-Dataset="e5a58990-d727-440a-aab9-7638a5698954" ID-ISSN="1175-5326" ID-Zenodo-Dep="1202953" ID-ZooBank="79E3EB78-D1C3-45CF-AB13-F8E61C936252" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1521441832187" checkinUser="plazi" docAuthor="Boxshall, Geoff" docDate="2018" docId="03B587F2AA564D15B6F8FF7C3CBAFF6B" docLanguage="en" docName="zootaxa.4398.1.1.pdf" docOrigin="Zootaxa 4398 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Caligus elasmobranchi Boxshall 2018, sp. nov." docType="treatment" docVersion="9" lastPageNumber="62" masterDocId="FF8CFF8AAA6D4D28B66FFFEB3934FF93" masterDocTitle="The sea lice (Copepoda: Caligidae) of Moreton Bay (Queensland, Australia), with descriptions of thirteen new species" masterLastPageNumber="172" masterPageNumber="1" pageNumber="60" updateTime="1698532557943" updateUser="ExternalLinkService">
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<mods:title id="1EF556C374B0E4C36CBB5BEED9345DEF">The sea lice (Copepoda: Caligidae) of Moreton Bay (Queensland, Australia), with descriptions of thirteen new species</mods:title>
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<mods:namePart id="3FBB8D3092BEDF18391B463373F3F019">Boxshall, Geoff</mods:namePart>
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<mods:date id="1748A017CC41B607C1CBF912E36BCBEC">2018</mods:date>
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<treatment id="03B587F2AA564D15B6F8FF7C3CBAFF6B" ID-DOI="http://doi.org/10.5281/zenodo.5952164" ID-GBIF-Taxon="142340603" ID-Zenodo-Dep="5952164" LSID="urn:lsid:plazi:treatment:03B587F2AA564D15B6F8FF7C3CBAFF6B" httpUri="http://treatment.plazi.org/id/03B587F2AA564D15B6F8FF7C3CBAFF6B" lastPageId="61" lastPageNumber="62" pageId="59" pageNumber="60">
<subSubSection id="C306656FAA564D13B6F8FF7C39CDFF40" pageId="59" pageNumber="60" type="nomenclature">
<paragraph id="8BA336E4AA564D13B6F8FF7C3B27FF21" blockId="59.[151,531,151,211]" box="[151,531,151,178]" pageId="59" pageNumber="60">
<heading id="D0EB8188AA564D13B6F8FF7C3B27FF21" bold="true" box="[151,531,151,178]" fontSize="11" level="1" pageId="59" pageNumber="60" reason="1">
<emphasis id="B968EAF6AA564D13B6F8FF7C3B27FF21" bold="true" box="[151,531,151,178]" pageId="59" pageNumber="60">
<taxonomicName id="4C1C4D67AA564D13B6F8FF7C389AFF22" authority="Boxshall, 2018" authorityName="Boxshall" authorityYear="2018" box="[151,430,151,177]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="elasmobranchi" status="sp. nov.">
<emphasis id="B968EAF6AA564D13B6F8FF7C389AFF22" bold="true" box="[151,430,151,177]" italics="true" pageId="59" pageNumber="60">Caligus elasmobranchi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25B578DAA564D13B7DAFF733B27FF21" box="[437,531,152,178]" pageId="59" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BA336E4AA564D13B6F8FF5139CDFF40" blockId="59.[151,531,151,211]" box="[151,249,186,211]" pageId="59" pageNumber="60">
(
<figureCitation id="13272A61AA564D13B6F0FF5139C5FF40" box="[159,241,186,211]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C306656FAA564D13B6F8FEE93D4CFE8B" box="[151,1144,258,280]" pageId="59" pageNumber="60" type="description">
<paragraph id="8BA336E4AA564D13B6F8FEE93D4CFE8B" blockId="59.[151,1144,258,280]" box="[151,1144,258,280]" pageId="59" pageNumber="60">
Syn.
<taxonomicName id="4C1C4D67AA564D13B6A4FEE93B3BFE8B" authority=": Pillai, 1968" authorityName=": Pillai" authorityYear="1968" box="[203,527,258,280]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="dasyaticus">
<emphasis id="B968EAF6AA564D13B6A4FEE938BFFE8B" box="[203,395,258,280]" italics="true" pageId="59" pageNumber="60">Caligus dasyaticus</emphasis>
:
<bibRefCitation id="EF8D4B15AA564D13B7F7FEE93B3BFE8B" box="[408,527,258,280]" pageId="59" pageNumber="60" refId="ref87123" refString="Pillai, N. K. (1968) Additions to the copepod parasites of South Indian fishes. Parasitology, 58, 9 - 36. https: // doi. org / 10.1017 / S 0031182000073388" type="journal article">Pillai, 1968</bibRefCitation>
</taxonomicName>
, p. 911, figs. 1A
<bibRefCitation id="EF8D4B15AA564D13B4BFFEE93A51FE8B" box="[720,869,258,280]" pageId="59" pageNumber="60" refId="ref87204" refString="Pillai, N. K. (1985) Fauna of India. Parasitic copepods of marine fishes. Zoological Survey of India, Calcutta, 900 pp." type="book">K. Pillai, 1985</bibRefCitation>
, p. 280282, Figs. 88AK.
</paragraph>
</subSubSection>
<subSubSection id="C306656FAA564D13B6F8FEAE3BF1FDED" pageId="59" pageNumber="60" type="materials_examined">
<paragraph id="8BA336E4AA564D13B6F8FEAE3B14FE35" blockId="59.[151,1437,325,2006]" pageId="59" pageNumber="60">
<emphasis id="B968EAF6AA564D13B6F8FEAE3871FECD" bold="true" box="[151,325,325,350]" pageId="59" pageNumber="60">Type material.</emphasis>
7♀♀, 3♂♂ from
<emphasis id="B968EAF6AA564D13B461FEAD3BBDFECE" box="[526,649,326,349]" italics="true" pageId="59" pageNumber="60">Himantura</emphasis>
<taxonomicName id="4C1C4D67AA564D13B4FFFEAE3AA7FECD" authority="(Gmelin, 1789)" baseAuthorityName="Gmelin" baseAuthorityYear="1789" box="[656,915,325,350]" class="Maxillopoda" family="Caligidae" genus="Hermilius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="uarnak">
<emphasis id="B968EAF6AA564D13B4FFFEAE3BEBFECD" box="[656,735,325,350]" italics="true" pageId="59" pageNumber="60">uarnak</emphasis>
(Gmelin, 1789)
</taxonomicName>
(TC17112)
<date id="FFA21024AA564D13B273FEAD3DECFECD" box="[1052,1240,325,350]" pageId="59" pageNumber="60" value="2016-01-13">13 January 2016</date>
, Holotype ♀ QM Reg. No. W53065, 4 paratype ♀♀ and 2 paratype ♂♂ QM Reg. No. W53066; 2 paratype ♀♀ and 1 paratype ♂, NHMUK Reg. Nos 2017.267268.
</paragraph>
<paragraph id="8BA336E4AA564D13B6A8FE5A39CBFDC9" blockId="59.[151,1437,325,2006]" pageId="59" pageNumber="60">
<emphasis id="B968EAF6AA564D13B6A8FE5A3B1FFE59" bold="true" box="[199,555,433,458]" pageId="59" pageNumber="60">Additional non-type material.</emphasis>
2 late chalimus from
<taxonomicName id="4C1C4D67AA564D13B54DFE5A3DA2FE5A" authority="(Kuhl, 1823)" baseAuthorityName="Kuhl" baseAuthorityYear="1823" box="[802,1174,433,458]" class="Pisces" family="Aetobatidae" genus="Aetobatus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="59" pageNumber="60" phylum="Chordata" rank="species" species="ocellatus">
<emphasis id="B968EAF6AA564D13B54DFE5A3ACAFE59" box="[802,1022,433,458]" italics="true" pageId="59" pageNumber="60">Aetobatus ocellatus</emphasis>
(Kuhl, 1823)
</taxonomicName>
(TC17287)
<date id="FFA21024AA564D13B34DFE5A39E7FE7D" pageId="59" pageNumber="60" value="2016-01-19">19 January 2016</date>
; 2♀♀, 1♂, 12 immatures from
<taxonomicName id="4C1C4D67AA564D13B45BFE3D3A90FE7D" authority="Ogilby, 1908" authorityName="Ogilby" authorityYear="1908" box="[564,932,469,494]" class="Pisces" family="Dasyatidae" genus="Dasyatis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="59" pageNumber="60" phylum="Chordata" rank="species" species="fluviorum">
<emphasis id="B968EAF6AA564D13B45BFE3D3A3EFE7D" box="[564,778,469,494]" italics="true" pageId="59" pageNumber="60">Dasyatis fluviorum</emphasis>
Ogilby, 1908
</taxonomicName>
(TC17360)
<date id="FFA21024AA564D13B240FE3D3DDFFE7D" box="[1071,1259,469,494]" pageId="59" pageNumber="60" value="2016-01-21">21 January 2016</date>
, NHMUK Reg. Nos 2017.269271; 2 immature ♀♀, from
<emphasis id="B968EAF6AA564D13B41BFE113BDBFD82" box="[628,751,506,529]" italics="true" pageId="59" pageNumber="60">Himantura</emphasis>
<taxonomicName id="4C1C4D67AA564D13B49AFE123AFBFD82" authority="Whitley, 1939" authorityName="Whitley" authorityYear="1939" box="[757,975,505,530]" class="Maxillopoda" family="Caligidae" genus="Hermilius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="toshi">
<emphasis id="B968EAF6AA564D13B49AFE123A1FFD81" box="[757,811,505,530]" italics="true" pageId="59" pageNumber="60">toshi</emphasis>
Whitley, 1939
</taxonomicName>
(TC17189)
<date id="FFA21024AA564D13B236FE123C27FD81" box="[1113,1299,505,530]" pageId="59" pageNumber="60" value="2016-01-15">15 January 2016</date>
; 5♀♀, 3♂♂ and 22 immature stages from
<taxonomicName id="4C1C4D67AA564D13B796FDF63AA2FDA5" authority="(MacLeay, 1883)" authorityName="MacLeay" authorityYear="1883" baseAuthorityName="Macleay" baseAuthorityYear="1883" box="[505,918,541,566]" class="Elasmobranchii" family="Dasyatidae" genus="Pastinachus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="59" pageNumber="60" phylum="Chordata" rank="species" species="atrus">
<emphasis id="B968EAF6AA564D13B796FDF63BF3FDA6" box="[505,711,541,566]" italics="true" pageId="59" pageNumber="60">Pastinachus atrus</emphasis>
(MacLeay, 1883)
</taxonomicName>
(TC17166)
<date id="FFA21024AA564D13B247FDF63DD8FDA5" box="[1064,1260,541,566]" pageId="59" pageNumber="60" value="2016-01-15">15 January 2016</date>
, QM Reg. No. W53067.
</paragraph>
<paragraph id="8BA336E4AA564D13B6A8FD8E3BF1FDED" blockId="59.[151,1437,325,2006]" box="[199,709,613,638]" pageId="59" pageNumber="60">
<emphasis id="B968EAF6AA564D13B6A8FD8E386DFDED" bold="true" box="[199,345,613,638]" pageId="59" pageNumber="60">Site on host.</emphasis>
Upper and lower body surfaces.
</paragraph>
</subSubSection>
<subSubSection id="C306656FAA564D13B6A8FD623819FD55" pageId="59" pageNumber="60" type="etymology">
<paragraph id="8BA336E4AA564D13B6A8FD623819FD55" blockId="59.[151,1437,325,2006]" pageId="59" pageNumber="60">
<emphasis id="B968EAF6AA564D13B6A8FD62387AFD31" bold="true" box="[199,334,649,674]" pageId="59" pageNumber="60">Etymology.</emphasis>
The species name refers to the wide range of elasmobranchs that have been recorded as hosts of this copepod.
</paragraph>
</subSubSection>
<subSubSection id="C306656FAA564D13B6A8FD3A3B3BFAE1" pageId="59" pageNumber="60" type="diagnosis">
<paragraph id="8BA336E4AA564D13B6A8FD3A3B3BFAE1" blockId="59.[151,1437,325,2006]" pageId="59" pageNumber="60">
<emphasis id="B968EAF6AA564D13B6A8FD3A38E7FD79" bold="true" box="[199,467,721,746]" pageId="59" pageNumber="60">Differential diagnosis.</emphasis>
Cephalothorax dorsoventrally flattened with well-developed marginal membranes; frontal plates with small lunules. Genital complex about 1.1 to 1.3 times longer than wide (
<figureCitation id="13272A61AA564D13B2F6FD1E3C36FC9D" box="[1177,1282,757,782]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27A</figureCitation>
); abdomen 1- segmented, about 2.0 to 2.1 times longer than wide; genital complex dimensions variable (see
<tableCitation id="C69E035FAA564D13B2B7FCF23C1AFCA1" box="[1240,1326,793,818]" captionStart="TABLE 3" captionStartId="61.[151,239,293,316]" captionText="TABLE 3. Body dimensions (in mm) of adult females of Caligus elasmobranchi sp. nov. [Abbreviations: BL = body length, CL = dorsal cephalothoracic shield length, CW = dorsal cephalothoracic shield width, GCL = genital complex length, GCW = genital complex width, ABL = abdomen length, ABW = abdomen width, ESL = egg sac length]" pageId="59" pageNumber="60">Table 3</tableCitation>
), ranging from shorter than to 1.3 times longer than abdomen. Antenna without posterior process on proximal segment; middle segment short (
<figureCitation id="13272A61AA564D13B7F8FC8A38C9FCE9" box="[407,509,865,890]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27B</figureCitation>
). Post-antennal process with slender, strongly curved tine without marginal flange; associated papillae multisensillate. Posterior process of maxillule slender and slightly curved outwards (
<figureCitation id="13272A61AA564D13B347FC6E3CBBFC0D" box="[1320,1423,901,926]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27B</figureCitation>
). Maxilliped of female slender, with smooth myxal margin. Sternal furca with long divergent tines (
<figureCitation id="13272A61AA564D13B2B0FC423C72FC51" box="[1247,1350,937,962]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27C</figureCitation>
). Distal exopodal segment of leg 1 with 3 plumose setae on posterior margin; distal spine 1 just longer than other spines (
<figureCitation id="13272A61AA564D13B6F0FC1A383EFB99" box="[159,266,1009,1034]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27D</figureCitation>
), with blunt tip and marginal membrane on one side; spines 2 and 3 each with accessory process and rounded tip ornamented with membrane; seta 4 naked, markedly shorter than spines 2 and 3. Leg 2 ornamented with setules along lateral margins of endopodal segments 1 to 3; outer spines on exopodal segments 1 and 2 (
<figureCitation id="13272A61AA564D13B300FBD239F1FBE5" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27E</figureCitation>
) small and aligned with long axis of ramus, not reflexed. Leg 3 apron without conspicuous ornamentation: exopod 3-segmented (
<figureCitation id="13272A61AA564D13B7E1FB6A38C6FB09" box="[398,498,1153,1178]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27F</figureCitation>
); with straight outer spine and plumose inner seta on first segment; second and third segments incompletely separated, armed with total of 4 spines and 5 setae. Leg 4 extremely long, reaching almost to base of caudal rami (
<figureCitation id="13272A61AA564D13B7C7FB223B26FB71" box="[424,530,1225,1250]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27A</figureCitation>
); exopod 2-segmented; first exopodal segment with slightly curved outer spine and large pecten; compound distal segment with 1 medium length and 2 short apical spines, distal segment ornamented with modified pecten on margin and numerous surface sensillae (
<figureCitation id="13272A61AA564D13B24CFAFA3DBBFAB9" box="[1059,1167,1297,1322]" captionStart="FIGURE 27" captionStartId="60.[151,250,1931,1953]" captionTargetBox="[220,1395,224,1897]" captionTargetId="figure@60.[172,1414,193,1909]" captionTargetPageId="60" captionText="FIGURE 27. Caligus elasmobranchi sp. nov., female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn in situ; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4.Scale bars:1.0 mm onA, 200 µm on B,F, G, 250 µm on C, 100 µm on D, E." httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="59" pageNumber="60">Fig. 27G</figureCitation>
). Mean body length of female
<quantity id="4CE49B01AA564D13B686FADE387BFADE" box="[233,335,1333,1358]" metricMagnitude="-3" metricUnit="m" metricValue="5.46" pageId="59" pageNumber="60" unit="mm" value="5.46">5.46 mm</quantity>
, range
<quantity id="4CE49B01AA564D13B7F0FADE3B62FADE" box="[415,598,1333,1358]" metricMagnitude="-3" metricUnit="m" metricValue="5.515" metricValueMax="6.18" metricValueMin="4.85" pageId="59" pageNumber="60" unit="mm" value="5.515" valueMax="6.18" valueMin="4.85">4.85 to 6.18 mm</quantity>
(based on
<specimenCount id="9D1AFD6DAA564D13B4A1FADE3A68FADD" box="[718,860,1333,1358]" pageId="59" pageNumber="60" type="generic">6 specimens</specimenCount>
). Mean body length of male
<quantity id="4CE49B01AA564D13B2F5FADD3DCBFADE" box="[1178,1279,1334,1358]" metricMagnitude="-3" metricUnit="m" metricValue="7.03" pageId="59" pageNumber="60" unit="mm" value="7.03">7.03 mm</quantity>
, range
<quantity id="4CE49B01AA564D13B320FADE39CFFAE2" metricMagnitude="-3" metricUnit="m" metricValue="6.949999999999999" metricValueMax="7.3" metricValueMin="6.6" pageId="59" pageNumber="60" unit="mm" value="6.949999999999999" valueMax="7.3" valueMin="6.6">6.60 to 7.30 mm</quantity>
(based on
<specimenCount id="9D1AFD6DAA564D13B71AFAB13B37FAE1" box="[373,515,1369,1394]" pageId="59" pageNumber="60" type="generic">7 specimens</specimenCount>
).
</paragraph>
</subSubSection>
<subSubSection id="C306656FAA564D15B6A8FA963CBAFF6B" lastPageId="61" lastPageNumber="62" pageId="59" pageNumber="60" type="discussion">
<paragraph id="8BA336E4AA564D13B6A8FA963B65F9FD" blockId="59.[151,1437,325,2006]" pageId="59" pageNumber="60">
<emphasis id="B968EAF6AA564D13B6A8FA96380FFA05" bold="true" box="[199,315,1405,1430]" pageId="59" pageNumber="60">Remarks.</emphasis>
Both sexes of this species were described in detail by
<bibRefCitation id="EF8D4B15AA564D13B5B9FA963D55FA05" box="[982,1121,1405,1430]" pageId="59" pageNumber="60" refId="ref87123" refString="Pillai, N. K. (1968) Additions to the copepod parasites of South Indian fishes. Parasitology, 58, 9 - 36. https: // doi. org / 10.1017 / S 0031182000073388" type="journal article">Pillai (1968</bibRefCitation>
,
<bibRefCitation id="EF8D4B15AA564D13B21DFA963D9FFA05" box="[1138,1195,1405,1430]" pageId="59" pageNumber="60" refId="ref87204" refString="Pillai, N. K. (1985) Fauna of India. Parasitic copepods of marine fishes. Zoological Survey of India, Calcutta, 900 pp." type="book">1985</bibRefCitation>
) under the name
<taxonomicName id="4C1C4D67AA564D13B3EDFA953839FA29" authorityName=": Pillai" authorityYear="1968" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="dasyaticus">
<emphasis id="B968EAF6AA564D13B3EDFA953839FA29" italics="true" pageId="59" pageNumber="60">C. dasyaticus</emphasis>
</taxonomicName>
. Pillais material, four females and
<specimenCount id="9D1AFD6DAA564D13B4C9FA493BC2FA29" box="[678,758,1441,1466]" pageId="59" pageNumber="60" type="male">1 male</specimenCount>
, came from the gills of
<emphasis id="B968EAF6AA564D13B265FA493D60FA2A" box="[1034,1108,1442,1465]" italics="true" pageId="59" pageNumber="60">Pristis</emphasis>
sp. caught near Trivandrum,
<collectingCountry id="F30B7674AA564D13B6F8FA2E39E5FA4D" box="[151,209,1477,1502]" name="India" pageId="59" pageNumber="60">India</collectingCountry>
and is not conspecific with
<taxonomicName id="4C1C4D67AA564D13B468FA2D3BA9FA4D" authorityName=": Pillai" authorityYear="1968" box="[519,669,1477,1502]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="dasyaticus">
<emphasis id="B968EAF6AA564D13B468FA2D3BA9FA4D" box="[519,669,1477,1502]" italics="true" pageId="59" pageNumber="60">C. dasyaticus</emphasis>
</taxonomicName>
of
<bibRefCitation id="EF8D4B15AA564D13B4AEFA2E3ABAFA4D" box="[705,910,1477,1502]" pageId="59" pageNumber="60" refId="ref87588" 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, 25, 16 - 22." type="journal article">Rangnekar (1957)</bibRefCitation>
, as previously noted by
<bibRefCitation id="EF8D4B15AA564D13B2F4FA2D3C7BFA4D" box="[1179,1359,1477,1502]" pageId="59" pageNumber="60" refId="ref85024" refString="Lin, C. - L. &amp; Ho, J. - S. (2007) Six species of Sea Lice (Copepoda, Caligidae) new to Taiwan. Journal of the Fisheries Society of Taiwan, 34, 41 - 67." type="journal article">
Ho
<emphasis id="B968EAF6AA564D13B2ACFA2D3DCFFA4D" box="[1219,1275,1477,1502]" italics="true" pageId="59" pageNumber="60">et al.</emphasis>
(2007)
</bibRefCitation>
. These species are closely related and share numerous character states including the unusual marginal membrane near the apex of the distal segment of leg 4. However, as noted above,
<taxonomicName id="4C1C4D67AA564D13B523F9E53D27F9B5" authority="Boxshall, 2018" authorityName="Boxshall" authorityYear="2018" box="[844,1043,1549,1574]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="elasmobranchi" status="sp. nov.">
<emphasis id="B968EAF6AA564D13B523F9E53D27F9B5" box="[844,1043,1549,1574]" italics="true" pageId="59" pageNumber="60">C. elasmobranchi</emphasis>
</taxonomicName>
<emphasis id="B968EAF6AA564D13B275F9E63D47F9B5" bold="true" box="[1050,1139,1549,1574]" pageId="59" pageNumber="60">
<taxonomicNameLabel id="A25B578DAA564D13B275F9E63D47F9B5" box="[1050,1139,1549,1574]" pageId="59" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
can be distinguished from
<taxonomicName id="4C1C4D67AA564D13B6F8F9D9381AF9D9" authorityName=": Pillai" authorityYear="1968" box="[151,302,1585,1610]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="dasyaticus">
<emphasis id="B968EAF6AA564D13B6F8F9D9381AF9D9" box="[151,302,1585,1610]" italics="true" pageId="59" pageNumber="60">C. dasyaticus</emphasis>
</taxonomicName>
by the length of leg 4, which is shorter than the genital complex in the former, but extends almost to the base of the caudal rami in the latter.
</paragraph>
<paragraph id="8BA336E4AA564D13B6A8F9923B6AF845" blockId="59.[151,1437,325,2006]" pageId="59" pageNumber="60">
The material of this species exhibited unusual size variation (
<tableCitation id="C69E035FAA564D13B5C3F9923D3CF901" box="[940,1032,1657,1682]" captionStart="TABLE 3" captionStartId="61.[151,239,293,316]" captionText="TABLE 3. Body dimensions (in mm) of adult females of Caligus elasmobranchi sp. nov. [Abbreviations: BL = body length, CL = dorsal cephalothoracic shield length, CW = dorsal cephalothoracic shield width, GCL = genital complex length, GCW = genital complex width, ABL = abdomen length, ABW = abdomen width, ESL = egg sac length]" pageId="59" pageNumber="60">Table 3</tableCitation>
). The measurements given in the diagnosis are based on a sample of 6 complete females, five of which were ovigerous, plus a detached genital complex plus abdomen which retained its egg sacs. These had a mean body length of
<quantity id="4CE49B01AA564D13B2E4F92A3DC1F94A" box="[1163,1269,1729,1754]" metricMagnitude="-3" metricUnit="m" metricValue="5.46" pageId="59" pageNumber="60" unit="mm" value="5.46">5.46 mm</quantity>
. However, the sample contained another ovigerous female which was
<quantity id="4CE49B01AA564D13B56CF90D3A41F96E" box="[771,885,1766,1790]" metricMagnitude="-2" metricUnit="m" metricValue="1.034" pageId="59" pageNumber="60" unit="mm" value="10.34">10.34 mm</quantity>
in length, almost twice as long as the others, and its abdomen more than twice as long as wide. Its dimensions are given in
<tableCitation id="C69E035FAA564D13B582F8E23D70F8B1" box="[1005,1092,1801,1826]" captionStart="TABLE 3" captionStartId="61.[151,239,293,316]" captionText="TABLE 3. Body dimensions (in mm) of adult females of Caligus elasmobranchi sp. nov. [Abbreviations: BL = body length, CL = dorsal cephalothoracic shield length, CW = dorsal cephalothoracic shield width, GCL = genital complex length, GCW = genital complex width, ABL = abdomen length, ABW = abdomen width, ESL = egg sac length]" pageId="59" pageNumber="60">Table 3</tableCitation>
, but it was excluded from the calculations of the mean. In other respects, this large female displayed all the morphological characteristics of
<taxonomicName id="4C1C4D67AA564D13B3EDF8C53809F8F9" authority="Boxshall, 2018" authorityName="Boxshall" authorityYear="2018" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="elasmobranchi" status="sp. nov.">
<emphasis id="B968EAF6AA564D13B3EDF8C53809F8F9" italics="true" pageId="59" pageNumber="60">C. elasmobranchi</emphasis>
</taxonomicName>
<emphasis id="B968EAF6AA564D13B729F8BA3895F8F9" bold="true" box="[326,417,1873,1898]" pageId="59" pageNumber="60">
<taxonomicNameLabel id="A25B578DAA564D13B729F8BA3895F8F9" box="[326,417,1873,1898]" pageId="59" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, as described by
<bibRefCitation id="EF8D4B15AA564D13B407F8BA3BC4F8F9" box="[616,752,1873,1898]" pageId="59" pageNumber="60" refId="ref87123" refString="Pillai, N. K. (1968) Additions to the copepod parasites of South Indian fishes. Parasitology, 58, 9 - 36. https: // doi. org / 10.1017 / S 0031182000073388" type="journal article">Pillai (1968</bibRefCitation>
,
<bibRefCitation id="EF8D4B15AA564D13B492F8BA3A03F8F9" box="[765,823,1873,1898]" pageId="59" pageNumber="60" refId="ref87204" refString="Pillai, N. K. (1985) Fauna of India. Parasitic copepods of marine fishes. Zoological Survey of India, Calcutta, 900 pp." type="book">1985</bibRefCitation>
, under the name
<taxonomicName id="4C1C4D67AA564D13B592F8B93DA1F8F9" authorityName=": Pillai" authorityYear="1968" box="[1021,1173,1873,1898]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="59" pageNumber="60" phylum="Arthropoda" rank="species" species="dasyaticus">
<emphasis id="B968EAF6AA564D13B592F8B93DA1F8F9" box="[1021,1173,1873,1898]" italics="true" pageId="59" pageNumber="60">C. dasyaticus</emphasis>
</taxonomicName>
). At 7.0 mm, the body length of female given by
<bibRefCitation id="EF8D4B15AA564D13B7BFF89E3B6DF81D" box="[464,601,1909,1934]" pageId="59" pageNumber="60" refId="ref87123" refString="Pillai, N. K. (1968) Additions to the copepod parasites of South Indian fishes. Parasitology, 58, 9 - 36. https: // doi. org / 10.1017 / S 0031182000073388" type="journal article">Pillai (1968</bibRefCitation>
,
<bibRefCitation id="EF8D4B15AA564D13B406F89E3B96F81D" box="[617,674,1909,1934]" pageId="59" pageNumber="60" refId="ref87204" refString="Pillai, N. K. (1985) Fauna of India. Parasitic copepods of marine fishes. Zoological Survey of India, Calcutta, 900 pp." type="book">1985</bibRefCitation>
) is intermediate between the typical and the large females in the current sample (
<tableCitation id="C69E035FAA564D13B724F8723895F821" box="[331,417,1945,1970]" captionStart="TABLE 3" captionStartId="61.[151,239,293,316]" captionText="TABLE 3. Body dimensions (in mm) of adult females of Caligus elasmobranchi sp. nov. [Abbreviations: BL = body length, CL = dorsal cephalothoracic shield length, CW = dorsal cephalothoracic shield width, GCL = genital complex length, GCW = genital complex width, ABL = abdomen length, ABW = abdomen width, ESL = egg sac length]" pageId="59" pageNumber="60">Table 3</tableCitation>
). Only a single female of this size was found, but this size disparity in a single locality and on the same host, deserves further study.
</paragraph>
<caption id="DF63666CAA514D14B6F8F8603C49F84D" httpUri="https://zenodo.org/record/1203007/files/figure.png" pageId="60" pageNumber="61" startId="60.[151,250,1931,1953]" targetBox="[220,1395,224,1897]" targetPageId="60">
<paragraph id="8BA336E4AA514D14B6F8F8603C49F84D" blockId="60.[151,1436,1931,2014]" pageId="60" pageNumber="61">
<emphasis id="B968EAF6AA514D14B6F8F8603817F833" bold="true" box="[151,291,1931,1953]" pageId="60" pageNumber="61">FIGURE 27.</emphasis>
<taxonomicName id="4C1C4D67AA514D14B743F8603B2EF832" authority="Boxshall, 2018" authorityName="Boxshall" authorityYear="2018" box="[300,538,1931,1953]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="60" pageNumber="61" phylum="Arthropoda" rank="species" species="elasmobranchi" status="sp. nov.">
<emphasis id="B968EAF6AA514D14B743F8603B2EF832" box="[300,538,1931,1953]" italics="true" pageId="60" pageNumber="61">Caligus elasmobranchi</emphasis>
</taxonomicName>
<emphasis id="B968EAF6AA514D14B44BF8603B4CF833" bold="true" box="[548,632,1931,1952]" pageId="60" pageNumber="61">
<taxonomicNameLabel id="A25B578DAA514D14B44BF8603B4CF833" box="[548,632,1931,1952]" pageId="60" pageNumber="61" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, female. A, habitus, dorsal; B, antenna, post-antennal process and maxillule drawn
<emphasis id="B968EAF6AA514D14B6B3F841382EF82C" box="[220,282,1962,1983]" italics="true" pageId="60" pageNumber="61">in situ</emphasis>
; C, sternal furca; D, distal margin of exopod of leg 1; E, outer margin spines on exopod of leg 2; F, exopod of leg 3; G, distal part of exopodal segments of leg 4. Scale bars: 1.0 mm on A, 200 µm on B, F, G, 250 µm on C, 100 µm on D, E.
</paragraph>
</caption>
<paragraph id="8BA336E4AA504D15B6A8FF733CBAFF6B" blockId="61.[151,1437,151,248]" pageId="61" pageNumber="62">
In Moreton
<collectingRegion id="49D8F806AA504D15B721FF733848FF23" box="[334,380,152,176]" country="Somalia" name="Bay" pageId="61" pageNumber="62">Bay</collectingRegion>
, four of the hosts,
<emphasis id="B968EAF6AA504D15B43FFF723D5BFF23" box="[592,1135,151,176]" italics="true" pageId="61" pageNumber="62">
<taxonomicName id="4C1C4D67AA504D15B43FFF723A84FF23" authority=", Himantura" authorityName="Himantura" box="[592,944,151,176]" class="Pisces" family="Dasyatidae" genus="Dasyatis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="61" pageNumber="62" phylum="Chordata" rank="species" species="fluviorum">Dasyatis fluviorum, Himantura</taxonomicName>
<taxonomicName id="4C1C4D67AA504D15B5D7FF7C3AC5FF23" authorityName="Whitley" authorityYear="1939" box="[952,1009,151,176]" class="Maxillopoda" family="Caligidae" genus="Hermilius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="61" pageNumber="62" phylum="Arthropoda" rank="species" species="toshi">toshi</taxonomicName>
,
<taxonomicName id="4C1C4D67AA504D15B591FF723D5BFF23" baseAuthorityName="Gmelin" baseAuthorityYear="1789" box="[1022,1135,151,176]" class="Maxillopoda" family="Caligidae" genus="Hermilius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="61" pageNumber="62" phylum="Arthropoda" rank="species" species="uarnak">H. uarnak</taxonomicName>
</emphasis>
and
<taxonomicName id="4C1C4D67AA504D15B2C7FF7C3C46FF23" baseAuthorityName="Macleay" baseAuthorityYear="1883" box="[1192,1394,151,176]" class="Elasmobranchii" family="Dasyatidae" genus="Pastinachus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="61" pageNumber="62" phylum="Chordata" rank="species" species="atrus">
<emphasis id="B968EAF6AA504D15B2C7FF7C3C46FF23" box="[1192,1394,151,176]" italics="true" pageId="61" pageNumber="62">Pastinachus atrus</emphasis>
</taxonomicName>
are members of the family
<taxonomicName id="4C1C4D67AA504D15B7CBFF573B15FF46" box="[420,545,188,213]" class="Pisces" family="Dasyatidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="61" pageNumber="62" phylum="Chordata" rank="family">Dasyatidae</taxonomicName>
while
<taxonomicName id="4C1C4D67AA504D15B41FFF573A7AFF46" baseAuthorityName="Kuhl" baseAuthorityYear="1823" box="[624,846,188,213]" class="Pisces" family="Aetobatidae" genus="Aetobatus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="61" pageNumber="62" phylum="Chordata" rank="species" species="ocellatus">
<emphasis id="B968EAF6AA504D15B41FFF573A7AFF46" box="[624,846,188,213]" italics="true" pageId="61" pageNumber="62">Aetobatus ocellatus</emphasis>
</taxonomicName>
is in the
<taxonomicName id="4C1C4D67AA504D15B5D3FF573D61FF46" box="[956,1109,188,213]" class="Pisces" family="Myliobatidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Myliobatiformes" pageId="61" pageNumber="62" phylum="Chordata" rank="family">Myliobatidae</taxonomicName>
. The only previously known host of
<taxonomicName id="4C1C4D67AA504D15B684FF0B3886FF6B" authority="Boxshall, 2018" authorityName="Boxshall" authorityYear="2018" box="[235,434,223,248]" class="Maxillopoda" family="Caligidae" genus="Caligus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Siphonostomatoida" pageId="61" pageNumber="62" phylum="Arthropoda" rank="species" species="elasmobranchi" status="sp. nov.">
<emphasis id="B968EAF6AA504D15B684FF0B3886FF6B" box="[235,434,223,248]" italics="true" pageId="61" pageNumber="62">C. elasmobranchi</emphasis>
</taxonomicName>
<emphasis id="B968EAF6AA504D15B7D6FF343B26FF6B" bold="true" box="[441,530,223,248]" pageId="61" pageNumber="62">
<taxonomicNameLabel id="A25B578DAA504D15B7D6FF343B26FF6B" box="[441,530,223,248]" pageId="61" pageNumber="62" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is an unidentified species of
<emphasis id="B968EAF6AA504D15B536FF0A3A96FF6B" box="[857,930,225,248]" italics="true" pageId="61" pageNumber="62">Pristis</emphasis>
(family
<taxonomicName id="4C1C4D67AA504D15B26CFF343D53FF6B" box="[1027,1127,223,248]" class="Pisces" family="Pristidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pristiformes" pageId="61" pageNumber="62" phylum="Chordata" rank="family">Pristidae</taxonomicName>
) from
<collectingCountry id="F30B7674AA504D15B2DDFF343DD8FF6B" box="[1202,1260,223,248]" name="India" pageId="61" pageNumber="62">India</collectingCountry>
(
<bibRefCitation id="EF8D4B15AA504D15B294FF343CB5FF6B" box="[1275,1409,223,248]" pageId="61" pageNumber="62" refId="ref87123" refString="Pillai, N. K. (1968) Additions to the copepod parasites of South Indian fishes. Parasitology, 58, 9 - 36. https: // doi. org / 10.1017 / S 0031182000073388" type="journal article">Pillai, 1968</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>