344 lines
32 KiB
XML
344 lines
32 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.96.1496" ID-GBIF-Dataset="3949f03e-bb97-4483-b296-8fde8d3d8d42" ID-PMC="PMC3095135" ID-Pensoft-Pub="1313-2970-96-39" ID-PubMed="21594073" ModsDocAuthor="" ModsDocDate="2011" ModsDocID="1313-2970-96-39" ModsDocOrigin="ZooKeys 96" ModsDocTitle="First descriptions of copepodid stages, sexual dimorphism and intraspecific variability of Mesocletodes Sars, 1909 (Copepoda, Harpacticoida, Argestidae), including the description of a new species with broad abyssal distribution" checkinTime="1451250448194" checkinUser="pensoft" docAuthor="Menzel, Lena" docDate="2011" docId="8145C6CEFD662D3D14EB8566009BCAA7" docLanguage="en" docName="ZooKeys 96: 39-80" docOrigin="ZooKeys 96" docSource="http://dx.doi.org/10.3897/zookeys.96.1496" docTitle="Mesocletodes elmari Menzel, 2011, sp. n." docType="treatment" docVersion="5" lastPageNumber="46" masterDocId="FFD37C3DFFC44D4C707F2E21DD69FFB3" masterDocTitle="First descriptions of copepodid stages, sexual dimorphism and intraspecific variability of Mesocletodes Sars, 1909 (Copepoda, Harpacticoida, Argestidae), including the description of a new species with broad abyssal distribution" masterLastPageNumber="80" masterPageNumber="39" pageNumber="42" updateTime="1668169385997" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>First descriptions of copepodid stages, sexual dimorphism and intraspecific variability of Mesocletodes Sars, 1909 (Copepoda, Harpacticoida, Argestidae), including the description of a new species with broad abyssal distribution</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Menzel, Lena</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2011</mods:date>
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<mods:detail type="volume">
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<mods:number>96</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>39</mods:start>
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<mods:end>80</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.96.1496</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.96.1496</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-96-39</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159365120" LSID="urn:lsid:zoobank.org:act:8056C1B4-FC83-4410-BE24-7F495F056509" httpUri="http://treatment.plazi.org/id/8145C6CEFD662D3D14EB8566009BCAA7" lastPageId="8" lastPageNumber="46" pageId="3" pageNumber="42">
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<subSubSection pageId="3" pageNumber="42" type="nomenclature">
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<paragraph pageId="3" pageNumber="42">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:8056C1B4-FC83-4410-BE24-7F495F056509" class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="3" pageNumber="42" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="42">sp. n.</taxonomicNameLabel>
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Figs 214
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="42" type="etymology">
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<paragraph pageId="3" pageNumber="42">Etymology:</paragraph>
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<paragraph pageId="3" pageNumber="42">
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The name is dedicated to the
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<normalizedToken originalValue="author’s">author's</normalizedToken>
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father, Elmar Menzel.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="42" type="locus typicus">
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<paragraph pageId="3" pageNumber="42">Locus typicus:</paragraph>
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<paragraph pageId="3" pageNumber="42">
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Guinea Basin, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M63/2 (DIVA-2), station 75/7 (
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="0.8333333">0°50.0'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-5.5833335">5°35.0'W</geoCoordinate>
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, 5139m), March 19, 2005.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="44" pageId="3" pageNumber="42" type="type material">
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<paragraph pageId="3" pageNumber="42">Type material:</paragraph>
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<paragraph pageId="3" pageNumber="42">
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7 individuals Holotype: 1 female, dissected, mounted on 17 slides, coll. no. SMF 37012/1-17, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M63/2 (DIVA-2) at station 75/7 (
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="0.8333333">0°50.0'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-5.5833335">05°35.0'W</geoCoordinate>
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, 5139m), March 19, 2005.
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</paragraph>
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<paragraph pageId="3" pageNumber="42">
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Paratypes: Paratype 1 (Allotype): 1 male, dissected, mounted on 9 slides, coll. no. SMF 37013/1-9, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M63/2 (DIVA-2) at station 78/7 (
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="0.835">0°50.1'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-5.585">05°35.1'W</geoCoordinate>
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, 5136m), March 19, 2005.
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</paragraph>
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<paragraph pageId="3" pageNumber="42">
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Paratype 2: 1 female, mounted on 1 slide, coll. no. SMF 37014, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M63/2 (DIVA-2) at station 35/7 (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-28.113333">28°6.8'S</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="7.345">7°20.7'E</geoCoordinate>
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, 5033m), March 03, 2005.
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</paragraph>
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<paragraph pageId="3" pageNumber="42">
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Paratype 3: 1 CV female dissected, mounted on 6 slides, coll. no. SMF 37015/1-6, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M63/2 (DIVA-2) at station 79/4 (
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="0.8333333">0°50.0'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-5.585">05°35.1'W</geoCoordinate>
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, 5140m), March 19, 2005.
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</paragraph>
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<paragraph pageId="4" pageNumber="43">
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<pageBreakToken pageId="4" pageNumber="43" start="start">Paratype</pageBreakToken>
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4: 1 CV male dissected, mounted on 2 slides, coll. no. SMF 37016/1-2, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M48/1 (DIVA-1) at station 346-7/10 (
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<geoCoordinate direction="south" orientation="latitude" precision="92" value="-16.283333">16°17.0'S</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="5.45">05°27.0'E</geoCoordinate>
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, 5389m), July 27, 2000.
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</paragraph>
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<paragraph pageId="5" pageNumber="44">
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<pageBreakToken pageId="5" pageNumber="44" start="start">Paratype</pageBreakToken>
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5: 1 CIV male dissected, mounted on 8 slides, coll. no. SMF 37017/1-8, RV
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<normalizedToken originalValue="“Meteor“">"Meteor"</normalizedToken>
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, Cruise M63/2 (DIVA-2) at station 97/7 (
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="0.62">0°37.2'N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="92" value="-6.4683332">06°28.1'W</geoCoordinate>
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, 5168m), March 23, 2005.
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</paragraph>
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<paragraph pageId="5" pageNumber="44">
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Paratype 6: 1 CIII dissected, mounted on 7 slides, coll. no. SMF 37018/1-7, RV
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<normalizedToken originalValue="“Polarstern“">"Polarstern"</normalizedToken>
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, Cruise PS61 (ANT-XIX/4 (ANDEEP II)) at station 138-11/4 (
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<geoCoordinate direction="south" orientation="latitude" precision="9" value="-62.967167">62°58.03'S</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="9" value="-27.901333">27°54.08'W</geoCoordinate>
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, 4541m) March 18, 2002.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="7" lastPageNumber="46" pageId="5" pageNumber="44" type="description of adult female holotype">
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<paragraph pageId="5" pageNumber="44">Description of adult female holotype.</paragraph>
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<paragraph pageId="5" pageNumber="44">
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(Figs 2-8) Habitus (Figs 2 [paratype], 3 A - B) of cylindrical shape, no clear distinction between prosome and urosome. Body length including FR 0.78 mm. Distal margins of cphth, prosomites and urosomites with conspicuous coarsely ornate and denticulated hyaline frill with many setules (Fig. 3 E). Body with several remarkably long sensilla. Distal margins of prosomites with long spinules: only dorsally in prosomites and first urosomite, in urosomites also laterally and ventrally. Distal margin of last urosomite without sensilla. Rostrum not protruding, with 2 sensilla. Body of prickly appearance, caused by small protrusions bearing one setule each, protrusions in urosomites and telson coarser than in prosomites (Fig. 3 D, F). Notch-like pores ventrolaterally on P4 - P5 bearing somites. Genital double somite fused ventrally. Telson (Fig. 3
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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) as long as 2 preceding urosomites together, almost square from lateral and dorsal view. Ventrally with 2 rows of 6 long spinules each and on the outer edges, close to hyaline frill of last urosomite. 1 ventral notch-like pore on each side at inner edge near insertion of FR. Operculum with several denticles (Fig. 3 A).
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</paragraph>
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<caption pageId="5" pageNumber="44">
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<paragraph pageId="5" pageNumber="44">
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Figure 2.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="5" pageNumber="44" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., adult female, paratype 2. CLSM photograph of a Congo-red stained specimen, lateral view. Scale bar: 100
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<normalizedToken originalValue="µm">µm</normalizedToken>
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</paragraph>
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</caption>
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<caption pageId="5" pageNumber="44">
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<paragraph pageId="5" pageNumber="44">
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Figure 3.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="5" pageNumber="44" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., adult female, holotype. A habitus dorsal view B habitus lateral view C telson ventral view, internal notch-like pores indicated by arrow D detail of urosomal setules E detail of hyaline frill F detail of prosomal setules G FR lateral view, tube pores indicated by arrow. Scale bars:
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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: 100
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<normalizedToken originalValue="µm">µm</normalizedToken>
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;
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<normalizedToken originalValue="D–G">D-G</normalizedToken>
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: 50
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<normalizedToken originalValue="µm">µm</normalizedToken>
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="44">
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A1 (Fig. 4 A,
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<normalizedToken originalValue="A’">A'</normalizedToken>
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) 7-segmented, reticulated as shown for proximal part of A2 enp1 (Fig. 4 B). Segments 4 and 7 with aes. Second segment of paratype 2 (
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<normalizedToken originalValue="A’">A'</normalizedToken>
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) large, with 1 protrusion bearing 1 bipinnate seta (seta lost during preparation of holotype). Spines with STEs. First and second segment bear inner and outer spinules, third segment with outer spinules. Setal formula: 1: 0; 2: 8; 3: 5; 4: 2+aes; 5: 1; 6: 2; 7: 9+acrothek (=11+aes).
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</paragraph>
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<caption pageId="5" pageNumber="44">
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<paragraph pageId="5" pageNumber="44">
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Figure 4.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="5" pageNumber="44" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., adult female. A A1, holotype, dorsal view. Missing setae indicated by arrows. Asterisks mark the 2 setae presumably occurring in CV.
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<normalizedToken originalValue="A’">A'</normalizedToken>
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second A1 segment, paratype 2, ventral view, arrow indicates characteristic protrusion with seta B A2 holotype. Scale bars: 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="44">A2 (Fig. 4 B) with basis, reticulate ornamentation as shown for part of enp1. Exp 1-segmented, with 1 terminal and 1 subterminal seta. Enp 2-segmented, both segments with strong outer spinules. Enp2 with 2 bipinnate spines subterminally. 3 geniculate and 2 pinnate spines, and 1 naked seta terminally. Naked terminal seta fused basally to 1 outer pinnate spine. The innermost element is a reduced seta. Spines with STEs.</paragraph>
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<paragraph pageId="5" pageNumber="44">Labrum (Fig. 5 A) with 1 medial and 2 lateral rows of spinules, setules at oral surface.</paragraph>
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<caption pageId="5" pageNumber="44">
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<paragraph pageId="5" pageNumber="44">
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Figure 5.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="5" pageNumber="44" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., adult female. A labrum, holotype B+C md, holotype, D paragnaths, holotype E mxl, holotype F mx, holotype, basal seta supplemented after counterpart, dash-depicted endopodal seta supplemented after paratype 2. Arrow dicates the peculiar spinulelike pinna G mxp, paratype 2, unfragmented, G1-G3 mxp details, holotype. Scale bar: 50
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<normalizedToken originalValue="µm">µm</normalizedToken>
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="44">Md (Fig. 5 B, C) gnathobase formed by 5 tooth-like projections: 1 dentate, 1 broad tooth, 3 strong teeth partly fused to broad grinding face. Strong seta close to grinding face. Md palpus 3-segmented, exp and enp articulated. 1 strong basal seta terminally, exp with 2 terminal and 1 subterminal setae, enp with 3 terminal setae.</paragraph>
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<paragraph pageId="5" pageNumber="44">Paragnaths (Fig. 5 D) on each side with 2 rows of traverse arranged brush-like setae orally and 1 row of long spinules at the surface.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="45" pageId="5" pageNumber="44">
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Mxl (Fig. 5 E) praecoxal arthrite terminally with 6 strong elements: 3 hooks with 1 strong spinule each, 1 brushlike seta fused to arthrite and 2 unipinnate setae. Subterminally with another pinnate spine and 2 bare setae aborally. Coxa with 4
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<pageBreakToken pageId="6" pageNumber="45" start="start">elements</pageBreakToken>
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terminally: 1 strong seta fused to coxa and 3 bare setae. Basis with 2 bare setae. Enp incorporated into basis, with 2 bare setae, exp 1-segmented with 2 pinnate setae.
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</paragraph>
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<paragraph pageId="6" pageNumber="45">Mx (Fig. 5 F) syncoxa with 2 endites, the proximal one bearing 1 seta. Distal endite with 3 setae, the biggest one fused to segment. 2 strong setae fused to basis, distal one shows a suture, proximal one with 1 conspicuous strong spinule-like pinna (indicated by arrow in Fig. 5 F). Basis additionally with 1 bare seta. Enp 1-segmented, with 2 bipinnate setae of equal length (dash-depicted seta supplemented from paratype 2).</paragraph>
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<paragraph pageId="6" pageNumber="45">Mxp (Fig. 5 G, G1-G3) prehensile, syncoxa (Fig. 5 G1) slightly shorter than basis (proximal part of Fig. 5 G2), with 2 setae and several spinules. Basis slender, with spinules of different sizes. Enp 2-segmented. Enp1 (distal part of Fig. 5 G2) small, bare of setae. Enp2 (Fig. 5 G3) terminally fused to strongly pinnate claw, suture visible.</paragraph>
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<paragraph pageId="6" pageNumber="45">P1 (Fig. 6 A) with 3-segmented exp and 2-segmented enp. Intercoxal sclerite long and bow-like. Coxa 1/3 broader than basis, with several spinules on ventral margin. Basis with outer spine, outer pore, long inner spine ventrally oriented and several rows of spinules. Exp1 and exp2 without inner seta. Exp3 with 4 elements. Enp1 short, with strong inner spine inserted medially. Enp2 extremely long, surpassing exp in length, with 1 outer, 1 terminal and 1 inner seta. Enp2 with 1 peculiar spinule subterminally. For setal formula see Table 2.</paragraph>
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<caption pageId="6" pageNumber="45">
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<paragraph pageId="6" pageNumber="45">
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Figure 6.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="6" pageNumber="45" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., adult female, holotype. A P1, tube pores indicated by arrows B P2. Scale bars: 50
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<normalizedToken originalValue="µm">µm</normalizedToken>
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</paragraph>
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</caption>
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<caption pageId="6" pageNumber="45">
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<paragraph pageId="6" pageNumber="45">
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Table 2.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="6" pageNumber="45" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., setal formula of P1-P4 of adults and copepodid stages. Pereiopodal setation of CV female and CV male is analogous to adults. - = segment is missing
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</paragraph>
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</caption>
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<paragraph lastPageId="7" lastPageNumber="46" pageId="6" pageNumber="45">
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P2-P4 (Figs 6 B, 7 A, B) with 3-segmented exps and 2-segmented enps. Intercoxal sclerites long and bow-like. Coxae little larger than bases. Bases twice as broad as long. Bases with outer spines, at inner margin with setular tufts. Outer margins of coxa with
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<pageBreakToken pageId="7" pageNumber="46" start="start">strong</pageBreakToken>
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spinules, inner margins of coxa and basis with setules. Exp1 as long as exp2 and exp3 together. Exp1 without inner seta. Exp3 terminally with cuticular hooks. Enp1 short. Enp2 extremely long, decreasing in length from P2-P4, measured in relation to exp1. Enp2 with 1 strong, short spinule subterminally. Outer terminal seta of enp2 decreasing in length from P2-P4. Inner terminal seta in P2 enp2 lost during preparation (indicated by arrow in Fig. 6 B). Setation of exp and enp as in Table 2.
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</paragraph>
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<caption pageId="7" pageNumber="46">
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<paragraph pageId="7" pageNumber="46">
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Figure 7.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n., adult female, holotype. A P3 B P4. Scale bar: 50
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<normalizedToken originalValue="µm">µm</normalizedToken>
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</paragraph>
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</caption>
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<paragraph pageId="7" pageNumber="46">P5 (Fig. 8 A) benp with setophore with 2 spinules and 1 long bipinnate seta. Endopodal lobe not protruding, with 3 setae. Exp about 2 times as long as broad at base, bearing 3 outer, 1 terminal and 1 inner seta (dash-depicted setae supplemented from paratype 2).</paragraph>
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<caption pageId="7" pageNumber="46">
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<paragraph pageId="7" pageNumber="46">
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Figure 8.
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<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
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sp. n. A adult female holotype, P5, dorsal view B adult female holotype, GF, P6 indicated by asterisk C CV female paratype 3, P5 ventral view C1 CV female paratype 3, P6 ventral view D adult male paratype 1, P5 ventral view D1 adult male paratype 1, P6 ventral view E CV male paratype 4, P5 ventral view, asterisk on the right side of the endopodal lobe indicates where a cuticular protrusion analogous to the one on the left side can be expected E1 CV male paratype 4, P6 ventral view F CIV male paratype 5, P5 ventral view, asterisk marks the inner depression on P5 exp F1 CIV male paratype 5, P6 ventral view. Missing setae indicated by arrows. Scale bars: 50
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="7" pageNumber="46">P6 integrated into GF (Fig. 8 B), reduced to a fused opercular plate, armed with 1 short spine on each side (see asterisk in Fig. 8 B). GF with single aperture, accompanied by 1 row of spinules on each side.</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">
|
||
FR (Fig. 3 G) long and slender, ornate, ventral spinules between seta VII and III. Approximately 13 times as long as broad (measured at base). Close to base ventrolaterally with 1 notch-like pore at external side (Fig. 3 G, C). Extremely elongated between setae VII and III. Seta I close to seta II. Seta VII triarticulate. Seta III located on dorsal side subterminally. Setae
|
||
<normalizedToken originalValue="IV–VI">IV-VI</normalizedToken>
|
||
located terminally. FR laterally with subterminal tube pore (see arrow in Fig. 3 G).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="7" pageNumber="46" type="description of adult male paratype">
|
||
<paragraph pageId="7" pageNumber="46">Description of adult male paratype</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">(Allotype) (Figs 8-11) The adult male corresponds to the adult female in all morphological characters unless deviations are mentioned below.</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Habitus (Fig. 9 A, B) much smaller than adult female, body length including FR 0.40 mm. Body not of prickly appearance (Fig. 9
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
), hyaline frill (Fig. 9 D) not ornate. Distal margins of first and second urosomites with long spinules dorsally, of third urosomite dorsally, laterally and ventrally, of last 2 urosomites only laterally and ventrally. With 2 spermatophores: first one inside first urosomite, second one inside second and third prosomite. Gut empty. FR (Fig. 9 E) as described for female.
|
||
</paragraph>
|
||
<caption pageId="7" pageNumber="46">
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Figure 9.
|
||
<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
|
||
sp. n., adult male paratype 1. A habitus dorsal view B habitus lateral view C telson ventral view D detail of hyaline frill E FR, lateral view, arrow indicates terminal tube pore. Scale bars:
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
100
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, D+E 50
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="7" pageNumber="46">A1 (Fig. 10 A) 9-segmented, haplocer. Segments 5 and 9 with aes. Second segment large, with 1 protrusion bearing 1 bare seta. Segments 5, 6 and 7 with modified setae. Setae of most segments bare. Setal formula: 1: 0; 2: 8; 3: 4; 4: 2; 5: 4+aes; 6: 2; 7: 2; 8: 2; 9: 9+acrothek (=11+aes).</paragraph>
|
||
<caption pageId="7" pageNumber="46">
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Figure 10.
|
||
<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
|
||
sp. n. A adult male paratype 1, A1 dorsal view B CV male paratype 4, A1 dorsal view, minute setae on third segment highlighted by solid squares. Asterisks mark the 2 setae occurring in CV. Missing setae indicated by arrows. Scale bar: 50
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="7" pageNumber="46">A2, Md, Mxl, Mx and Mxp as described for adult female.</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">
|
||
P1-P4 (Fig. 11
|
||
<normalizedToken originalValue="A–D">A-D</normalizedToken>
|
||
) intercoxal sclerites, coxae, bases and segmentation of enp and exp as described for adult female, but with fewer spinules. P1 exp3 with 1 spine and 3 setae, the 2 innermost of wreathed appearance. P2-P4 inner exopodal setae long. P2-P4 enp2 with 2 long inner setae. Basal seta of P3 and P4 broken (indicated by arrow in Fig. 11 C, D). For setal formula see Table 2.
|
||
</paragraph>
|
||
<caption pageId="7" pageNumber="46">
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Figure 11.
|
||
<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
|
||
sp. n., adult male paratype 1. A P1 B P2 C P3 D P4. Missing setae indicated by arrows. Scale bars: 50
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="7" pageNumber="46">P5 (Fig. 8 D) with setophore (seta lost during dissection, see arrow in Fig. 8 D) with few spinules and 1 notch-like pore laterally. Endopodal lobe barely protruding, with 2 setae, outermost very short. Exp about twice as long as broad (measured at base), bearing 3 outer, 1 terminal and 2 inner setae.</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">P6 (Fig. 8 D1) with 2 setae.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="7" pageNumber="46" type="description of copepodid stages">
|
||
<paragraph pageId="7" pageNumber="46">Description of copepodid stages</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">(paratypes 3-6) (Figs 8, 10, 12-14) CV female (Fig. 12 C, C1): body length including FR 0.58 mm. Body not of prickly appearance. Penultimate urosomite is not formed. Distal margins of body somites with smooth hyaline frill and, except penultimate one, with sensilla. Extremities A1-P4 (not depicted) as described for adult female but smaller. P5 (Fig. 8 C) exp not separated from benp, setation of exp and basendopodal lobe as in adult female but smaller. P6 (Fig. 8 C1) with 2 setae. GF not expressed.</paragraph>
|
||
<caption pageId="7" pageNumber="46">
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Figure 12.
|
||
<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
|
||
sp. n. A CIII paratype 6, habitus lateral view, terminal TP on FR indicated by arrow A1 CIII paratype 6, telson ventral view, internal notch-like pores indicated by arrow B CIV male paratype 5, habitus lateral view, terminal TP on FR indicated by arrow B1 CIV male paratype 5, telson ventral view, internal notch-like pores and setular tuft on FR indicated by arrows C CV female paratype 3, habitus lateral view, terminal TP on FR indicated by arrow C1 CV female paratype 3, telson ventral view, internal notch-like pores indicated by arrow. Scale bar: 100
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="7" pageNumber="46">CV male: body as in CV female. A1 (Fig. 10 B) 6-segmented. Segments 3 and 6 with aes. Second segment large, with a protrusion bearing 1 seta. Setal formula: 1: 0; 2: 8; 3: 9+aes; 4: 2; 5: 2; 6: 9+acrothek (=11+aes). A2-mxp as described for adult female. P1-P4 (not depicted) and P6 (Fig. 8 E1) as described for adult male but smaller. P5 (Fig. 8 E) exp not separated from benp, setation of exp as in adult male but smaller. Right basendopodal lobe with 2 setae and 1 cuticular protrusion, which is missing on the counterpart (see asterisk in Fig. 8 E).</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">
|
||
CIV male (Fig. 12 B, B1): body length including FR 0.50 mm. Body not of prickly appearance. 2 penultimate urosomites not formed. Distal margins of body somites with smooth hyaline frill and, except the penultimate one, with sensilla. A1 (Fig. 14 A) 6-segmented. Segments 3 and 6 with aes. Setal formula: 1: 0; 2: 6; 3: 6+aes; 4: 1; 5: 2; 6: 9+acrothek (=11+aes). A2-mxp (not depicted) as described for adult female but smaller P1-P4 (Fig. 13
|
||
<normalizedToken originalValue="A–D">A-D</normalizedToken>
|
||
) with 2-segmented enp and 2-segmented exp. P1-P4 enp2 with 1 inner seta and 1 subterminal, outer seta. For setal formula see Table 2. Setal elements developed as in adult male, P5 (Fig. 8 F) exp not separated from benp. Basendopodal lobe with 2 setae and 1 cuticular protrusion, P5 not fused in the middle. P6 (Fig. 8 F1) with 2 setae. GF not expressed. FR with setular tuft (Fig. 12 B1) close to insertion in telson.
|
||
</paragraph>
|
||
<caption pageId="7" pageNumber="46">
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Figure 13.
|
||
<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
|
||
sp. n., CIV male paratype 5. A P1 B P2 C P3 D P4. Missing setae indicated by arrows. Scale bars: 50
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<caption pageId="7" pageNumber="46">
|
||
<paragraph pageId="7" pageNumber="46">
|
||
Figure 14.
|
||
<taxonomicName class="Hexanauplia" family="Argestidae" genus="Mesocletodes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Mesocletodes elmari" order="Harpacticoida" pageId="7" pageNumber="46" phylum="Arthropoda" rank="species" species="elmari">Mesocletodes elmari</taxonomicName>
|
||
sp. n. A CIV male paratype 5, A1 dorsal view B CIII paratype 6, P1 C CIII paratype 6, P2, outer basal seta supplemented according to counterpart D CIII paratype 6, P3 E CIII paratype 6, P4 F CIII paratype 6, A1. Missing setae indicated by arrows. Scale bars: 50
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="7" pageNumber="46">CIII (Fig. 12 A, A1): body length including FR 0.42mm. Body not of prickly appearance. 3 penultimate urosomites not formed. Distal margins of body somites with smooth hyaline frill. A1 (Fig. 14 F) 5-segmented. Setal formula: 1: 0; 2: 8+aes; 3: 1; 4: 2; 5: 9+acrothek (=11+aes). A2-mxp (not depicted) as described for adult female but smaller.</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">
|
||
P1-P3 (Fig. 14
|
||
<normalizedToken originalValue="B–D">B-D</normalizedToken>
|
||
) with 2-segmented enp and 2-segmented exp. Exp1 longer than exp2. P4 (Fig. 14 E) exp and enp 1-segmented. For setal formula see Table 2. P5 lost during preparation, P6 not expressed.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="8" lastPageNumber="47" pageId="7" pageNumber="46" type="morphological variability">
|
||
<paragraph pageId="7" pageNumber="46">Morphological variability</paragraph>
|
||
<paragraph pageId="7" pageNumber="46">(cf. Table 1). The body length including FR is variable: for adult females between 0.57 and 1.06 mm (the majority measured 0.7 to 0.9 mm), for adult males between 0.4 and 0.7 mm, for CV females between 0.5 and 0.75 mm, for CV males between 0.5 and 0.59 mm, for CIV males between 0.4 and 0.64 mm.</paragraph>
|
||
<paragraph lastPageId="8" lastPageNumber="47" pageId="7" pageNumber="46">
|
||
The spinulation also seems to be highly variable: the row of spinules ventrally at the telson ranges from numerous, long and slender to few, short and stout. In total, 16 specimens show setular tufts in the FR: six adult females, one CV male and the five CIV males bear setular tufts close to the telson, four adult females close to seta VII. The amount of spinules in A1 segment 3 varies. Four out of 56 adult females
|
||
<pageBreakToken pageId="8" pageNumber="47" start="start">,</pageBreakToken>
|
||
all adult males and copepodid stages possess a non-ornate hyaline frill. A very rare feature (in two adult females, all CIV males) is also the presence of outer setae in P2-P4 enp2 or just in P2 enp2 (one adult female). The number of eggs (2-20) is variable, too.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |