278 lines
46 KiB
XML
278 lines
46 KiB
XML
<document id="CEE0420FEA94C1B202FA8B6F932FCD5C" ID-CLB-Dataset="30513" ID-DOI="10.11646/zootaxa.4394.3.1" ID-GBIF-Dataset="f39c8458-583b-4bc4-bc9a-b26d7c0c4e73" ID-ISSN="1175-5326" ID-Zenodo-Dep="1199710" ID-ZooBank="9358DA65-1111-4702-A898-52519D53B181" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1521176493305" checkinUser="plazi" docAuthor="Stępień, A., Błachowiak-Samołyk, K., Krawczuk, M. & Angel, M. V." docDate="2018" docId="D723883BFFACFFF534BCFCB7FAC8BB98" docLanguage="en" docName="zootaxa.4394.3.1.pdf" docOrigin="Zootaxa 4394 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Boroecia alaska Stępień & Błachowiak-Samołyk & Krawczuk & Angel 2018, new species" docType="treatment" docVersion="7" lastPageNumber="331" masterDocId="2B1AF043FFB1FFEB342BFFEAFFAABC45" masterDocTitle="A revision of the genus Boroecia Poulsen 1973 (Ostracoda, Halocypridae) with the descriptions of three new species" masterLastPageNumber="346" masterPageNumber="301" pageNumber="330" updateTime="1698531071446" updateUser="ExternalLinkService">
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<mods:title id="C52C0F19A447C9A00C63AE8D0092FB93">A revision of the genus Boroecia Poulsen 1973 (Ostracoda, Halocypridae) with the descriptions of three new species</mods:title>
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<mods:namePart id="8F5AFD95828133F481644F7EA205A893">Stępień, A.</mods:namePart>
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<mods:namePart id="88B15F91BF4684056780D1D93FEF66EC">Błachowiak-Samołyk, K.</mods:namePart>
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<mods:namePart id="22C7B62C0B15E5545B4251BAB42F063C">Krawczuk, M.</mods:namePart>
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<mods:namePart id="D4B8AC19F945E4F7F73B3681A02D56AD">Angel, M. V.</mods:namePart>
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<mods:title id="40CCDB0416BF3AC86A48AC50F5331349">Zootaxa</mods:title>
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<mods:date id="FEA7CF4DEAB07D35ADCA2F1B984C99E2">2018</mods:date>
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<mods:number id="7721E9F1E5B91398FADA0695B1CA5D47">2018-03-15</mods:number>
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<treatment id="D723883BFFACFFF534BCFCB7FAC8BB98" ID-DOI="http://doi.org/10.5281/zenodo.5958705" ID-GBIF-Taxon="142289364" ID-Zenodo-Dep="5958705" LSID="urn:lsid:plazi:treatment:D723883BFFACFFF534BCFCB7FAC8BB98" httpUri="http://treatment.plazi.org/id/D723883BFFACFFF534BCFCB7FAC8BB98" lastPageId="30" lastPageNumber="331" pageId="29" pageNumber="330">
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<subSubSection id="17906AA6FFACFFF634BCFCB7FD8EBF32" box="[151,548,861,887]" pageId="29" pageNumber="330" type="nomenclature">
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<paragraph id="5F35392DFFACFFF634BCFCB7FD8EBF32" blockId="29.[151,548,861,920]" box="[151,548,861,887]" pageId="29" pageNumber="330">
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<heading id="047D8E41FFACFFF634BCFCB7FD8EBF32" bold="true" box="[151,548,861,887]" fontSize="11" level="1" pageId="29" pageNumber="330" reason="1">
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<emphasis id="6DFEE53FFFACFFF634BCFCB7FD8EBF32" bold="true" box="[151,548,861,887]" pageId="29" pageNumber="330">
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2.5.
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<taxonomicName id="988A42AEFFACFFF634E1FCB7FE26BF32" ID-CoL="84Z74" authority="Stępień & Błachowiak-Samołyk & Krawczuk & Angel, 2018" authorityName="Stępień & Błachowiak-Samołyk & Krawczuk & Angel" authorityYear="2018" box="[202,396,861,887]" class="Ostracoda" family="Halocyprididae" genus="Boroecia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="29" pageNumber="330" phylum="Arthropoda" rank="species" species="alaska" status="sp. nov.">
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<emphasis id="6DFEE53FFFACFFF634E1FCB7FE26BF32" bold="true" box="[202,396,861,887]" italics="true" pageId="29" pageNumber="330">Boroecia alaska</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="76CD5844FFACFFF635BFFCB7FD8EBF32" box="[404,548,861,887]" pageId="29" pageNumber="330" rank="species">new species</taxonomicNameLabel>
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</emphasis>
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<subSubSection id="17906AA6FFACFFF634BCFC95FEE0BFDD" box="[151,330,895,920]" pageId="29" pageNumber="330" type="description">
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<paragraph id="5F35392DFFACFFF634BCFC95FEE0BFDD" blockId="29.[151,548,861,920]" box="[151,330,895,920]" pageId="29" pageNumber="330">
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(
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<figureCitation id="C7B125A8FFACFFF634B5FC95FEE8BFDD" box="[158,322,895,920]" captionStart-0="FIGURE 13" captionStart-1="FIGURE 14" captionStart-2="FIGURE 15" captionStartId-0="31.[151,250,1910,1932]" captionStartId-1="32.[151,250,1967,1989]" captionStartId-2="33.[151,250,1909,1931]" captionTargetBox-0="[212,1390,207,1870]" captionTargetBox-1="[248,1336,221,1935]" captionTargetBox-2="[215,1365,227,1874]" captionTargetId-0="figure@31.[179,1403,195,1888]" captionTargetId-1="figure@32.[220,1366,193,1949]" captionTargetId-2="figure@33.[198,1385,193,1894]" captionTargetPageId-0="31" captionTargetPageId-1="32" captionTargetPageId-2="33" captionText-0="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." captionText-1="FIGURE 14. Boroecia alaska male, 2.68 mm, Holotype. A. Maxilla (distorted); B. Fifth limb; C. Sixth limb; D. Caudal furca; E. Copulatory appendage.Scales in mm" captionText-2="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri-0="https://zenodo.org/record/1199736/files/figure.png" httpUri-1="https://zenodo.org/record/1199738/files/figure.png" httpUri-2="https://zenodo.org/record/1199740/files/figure.png" pageId="29" pageNumber="330">Figures 13–15</figureCitation>
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)
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</paragraph>
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</subSubSection>
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||
<subSubSection id="17906AA6FFACFFF634BCFC2DFA8BBFA5" box="[151,1313,967,992]" pageId="29" pageNumber="330" type="etymology">
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<paragraph id="5F35392DFFACFFF634BCFC2DFA8BBFA5" blockId="29.[151,1437,967,2037]" box="[151,1313,967,992]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634BCFC2DFEB4BFA5" bold="true" box="[151,286,967,992]" pageId="29" pageNumber="330">Etymology.</emphasis>
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This species is named after the Gulf of
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<collectingRegion id="9D4EF7CFFFACFFF636F7FC2DFC87BFA5" box="[732,813,967,992]" country="United States of America" name="Alaska" pageId="29" pageNumber="330">Alaska</collectingRegion>
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, i.e. the locality where it was first identified.
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</paragraph>
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</subSubSection>
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<subSubSection id="17906AA6FFACFFF634ECFC06FBBBB945" pageId="29" pageNumber="330" type="materials_examined">
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<paragraph id="5F35392DFFACFFF634ECFC06FD64B86D" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634ECFC06FEC3B840" bold="true" box="[199,361,1004,1029]" pageId="29" pageNumber="330">Type locality.</emphasis>
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North-East Pacific at 52° 29’N 149° 0.1’W on
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<date id="2B341FEDFFACFFF637B4FC06FB91B841" box="[927,1083,1004,1029]" pageId="29" pageNumber="330" value="2002-07-20">20 July 2002</date>
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, in a haul from 1200–0m; the female paratype was collected in the same sample.
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</paragraph>
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<paragraph id="5F35392DFFACFFF634ECFBDEFCB9B835" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634ECFBDEFE97B808" bold="true" box="[199,317,1076,1101]" pageId="29" pageNumber="330">Holotype:</emphasis>
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A male
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<quantity id="987294C8FFACFFF635B4FBDEFDAEB809" box="[415,516,1076,1101]" metricMagnitude="-3" metricUnit="m" metricValue="2.6" pageId="29" pageNumber="330" unit="mm" value="2.6">2.60 mm</quantity>
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long, dissected, stained with lignin pink and mounted on slides, and deposited at the Natural History Museum London NHMUK2016-621
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</paragraph>
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<paragraph id="5F35392DFFACFFF634ECFB96FBBBB945" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634ECFB96FE9EB8D0" bold="true" box="[199,308,1148,1173]" pageId="29" pageNumber="330">Paratype</emphasis>
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: A female
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<quantity id="987294C8FFACFFF63598FB96FDB2B8D1" box="[435,536,1148,1173]" metricMagnitude="-3" metricUnit="m" metricValue="3.06" pageId="29" pageNumber="330" unit="mm" value="3.06">3.06 mm</quantity>
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long, dissected, stained with lignin pink and mounted on slides. Also, collected at 52° 29’N 149° 0.1’W. Museum registration number NHMUK2016-622. The data for the other material examined, notably from Station GAK 13 at 58° 05.9’N, 147° 48.2’W (sounding
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<quantity id="987294C8FFACFFF6301EFB2EFB2EB899" box="[1077,1156,1220,1244]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="29" pageNumber="330" unit="m" value="2000.0">2000m</quantity>
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) sampled during a yearround survey in the region (
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<bibRefCitation id="3B1B44DCFFACFFF635E6FB0DFD79B945" box="[461,723,1255,1280]" pageId="29" pageNumber="330" refId="ref22141" refString="Coyle, K. O. & Pinchuk, A. I. (2003) Annual cycle of zooplankton abundance, biomass and production on the northern Gulf of Alaska shelf, October 1997 through October 2000. Fisheries Oceanography, 12, 227 - 251. https: // doi. org / 10.1046 / j. 1365 - 2419.2003.00256. x" type="journal article">Coyle & Pinchuk 2003</bibRefCitation>
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,
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<bibRefCitation id="3B1B44DCFFACFFF636F5FB0DFCB0B945" box="[734,794,1255,1280]" pageId="29" pageNumber="330" refId="ref22205" refString="Coyle, K. O. & Pinchuk, A. I. (2005) Cross-shelf distribution of zooplankton relative to water masses on the northern Gulf of Alaska shelf. Deep-Sea Research II, 52, 217 - 245. https: // doi. org / 10.1016 / j. dsr 2.2004.09.025" type="journal article">2005</bibRefCitation>
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), are listed in Table 6.
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</paragraph>
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</subSubSection>
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<subSubSection id="17906AA6FFACFFF534ECFAE6FAC8BB98" lastPageId="30" lastPageNumber="331" pageId="29" pageNumber="330" type="description">
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<paragraph id="5F35392DFFACFFF634ECFAE6FD6FB99D" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634ECFAE6FEA1B960" bold="true" box="[199,267,1292,1317]" pageId="29" pageNumber="330">Male.</emphasis>
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<emphasis id="6DFEE53FFFACFFF6353AFAE6FED5B966" box="[273,383,1292,1315]" italics="true" pageId="29" pageNumber="330">Carapace</emphasis>
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(
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<figureCitation id="C7B125A8FFACFFF635A5FAE6FD94B961" box="[398,574,1292,1317]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figures 13 A,B</figureCitation>
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). The length of the
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<typeStatus id="8031878FFFACFFF63733FAE6FCD0B960" box="[792,890,1292,1317]" pageId="29" pageNumber="330" type="holotype">holotype</typeStatus>
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is
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<quantity id="987294C8FFACFFF637B1FAE6FC54B961" box="[922,1022,1292,1317]" metricMagnitude="-3" metricUnit="m" metricValue="2.68" pageId="29" pageNumber="330" unit="mm" value="2.68">2.68 mm</quantity>
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(see
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<tableCitation id="12080C96FFACFFF63013FAE6FB20B961" box="[1080,1162,1292,1317]" captionStart="TABLE 1" captionStartId="3.[125,212,549,572]" captionText="TABLE 1. The ranges of the carapace lengths (mm) of the six Boroecia species. N is the number of specimens measured. For B. danae, (a) are the data from Poulsen (1973)" pageId="29" pageNumber="330">Table 1</tableCitation>
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). The carapace height is 41.8% CL and its width is 40.3% CL. There are weak oblique striae below the incisures. The rostrum (10.9% CL) is a little longer than the depth of the incisure (8.5% CL). The shoulder vaults are rounded. The PDC is rounded and carries no spines, although spines are present in the female. The LAG opens just anterior to the back of the hinge between the two carapace valves. Just below the PDC large male glands open on both valves. The RAG opens slightly above the PVC and on both valves.
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</paragraph>
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<paragraph id="5F35392DFFACFFF634ECFA0EFC77BA00" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634ECFA0EFECEB9B9" box="[199,356,1508,1532]" italics="true" pageId="29" pageNumber="330">Frontal organ</emphasis>
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(
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<figureCitation id="C7B125A8FFACFFF63559FA0EFE56B9B9" box="[370,508,1508,1533]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figure 13 C</figureCitation>
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). The stem (30.5% CL) ends level with the end of the limb of the first antenna. It is divided by a septum close to its midpoint. The capitulum (12.0% CL) is down-turned and bluntly pointed. It is covered with coarse spinules ventrally and laterally on its basal two-thirds.
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</paragraph>
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<paragraph id="5F35392DFFACFFF634ECF9BAFD9CBB05" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
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<emphasis id="6DFEE53FFFACFFF634ECF9BAFEF4BA2D" box="[199,350,1616,1640]" italics="true" pageId="29" pageNumber="330">First antenna</emphasis>
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(
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<figureCitation id="C7B125A8FFACFFF63545F9A5FD92BA2D" box="[366,568,1615,1640]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figures 13 C,D,E</figureCitation>
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). The limb (28.5% CL) is clearly segmented. The short a-seta (9.6% CL) lies back along the limb and has two basal lobes. The b-seta (31.1% CL) is longer than the d-seta and carries a longribbed sector (
|
||
<figureCitation id="C7B125A8FFACFFF63510F97DFE61BAF5" box="[315,459,1687,1712]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figure 13 D</figureCitation>
|
||
) distal to which are fairly coarse spinules, about 16 on one side and about 13 on the other. The c-seta (8.4% CL) is relatively shorter than in any of the species in the genus other than
|
||
<taxonomicName id="988A42AEFFACFFF630F5F957FAC8BA91" authorityName="Stępień & Błachowiak-Samołyk & Krawczuk & Angel" authorityYear="2018" box="[1246,1378,1724,1748]" class="Ostracoda" family="Halocyprididae" genus="Boroecia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="29" pageNumber="330" phylum="Arthropoda" rank="species" species="hopcrofti">
|
||
<emphasis id="6DFEE53FFFACFFF630F5F957FAC8BA91" box="[1246,1378,1724,1748]" italics="true" pageId="29" pageNumber="330">B. hopcrofti</emphasis>
|
||
</taxonomicName>
|
||
. The d-seta (26.7% CL) is relatively shorter than all the other species and carries a long row of about 22 fine spinules (
|
||
<figureCitation id="C7B125A8FFACFFF634B5F8EEFE9BBB59" box="[158,305,1796,1821]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figure 13 D</figureCitation>
|
||
). The e-seta (41,7% CL) is armed with 40 pairs of hooked spines (
|
||
<figureCitation id="C7B125A8FFACFFF6306BF8EEFB5CBB59" box="[1088,1270,1796,1821]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figures 13 D,E</figureCitation>
|
||
). Distal to the armature, the seta is broadly flanged.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFACFFF634ECF8A6FEDBBBB1" blockId="29.[151,1437,967,2037]" pageId="29" pageNumber="330">
|
||
<emphasis id="6DFEE53FFFACFFF634ECF8A6FED3BB21" box="[199,377,1868,1892]" italics="true" pageId="29" pageNumber="330">Second antenna</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFACFFF635A3F8A6FDE7BB21" box="[392,589,1868,1893]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figures 13 F,G,H</figureCitation>
|
||
). The protopodite (40.6% CL) is shorter than all the other species. The first exopodite segment (13.9% CL) has a terminal seta that is wrapped around the articulation with the second segment. The f-seta of the
|
||
<typeStatus id="8031878FFFACFFF6357CF87EFE13BBE8" box="[343,441,1940,1965]" pageId="29" pageNumber="330" type="holotype">holotype</typeStatus>
|
||
is broken but the g-seta is 28.2% CL. The hook appendages on the endopodites (
|
||
<figureCitation id="C7B125A8FFACFFF6316DF87EFF4EBB95" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figures 13 F,G</figureCitation>
|
||
) are similar to those of the other species. The h–j-setae are 25.0% CL and the h-seta has a slightly swollen base (
|
||
<figureCitation id="C7B125A8FFACFFF634FCF836FECEBBB1" box="[215,356,2012,2037]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="29" pageNumber="330">Figure 13 H</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFF72FD3EBDCD" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFF72FE99BCF5" box="[199,307,152,176]" italics="true" pageId="30" pageNumber="331">Mandible</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF5356AFF7DFE74BCF5" box="[321,478,151,176]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="30" pageNumber="331">
|
||
Figures
|
||
<date id="2B341FEDFFAFFFF535B6FF72FE66BCF5" box="[413,460,152,176]" pageId="30" pageNumber="331" value="2013-01">13 I</date>
|
||
,J
|
||
</figureCitation>
|
||
). The first exopodite segment has a densely plumose sub-terminal dorsal seta, and on its inner surface a long seta (not shown) and three other moderately long setae, of which the basal-most is plumose. The second segment has the usual three dorsal setae of different lengths and two ventral setae. The third segment has the usual seven terminal setae, two of which are claw-like; the longest is 14.6% CL. The toothed edge of the coxale has the characteristic structure for the genus (
|
||
<figureCitation id="C7B125A8FFAFFFF5372AFECDFC23BD05" box="[769,905,295,320]" captionStart="FIGURE 13" captionStartId="31.[151,250,1910,1932]" captionTargetBox="[212,1390,207,1870]" captionTargetId="figure@31.[179,1403,195,1888]" captionTargetPageId="31" captionText="FIGURE 13. Boroecia alaska male 2.68 mm, Holotype.A. Carapace, lateral view; B. Carapace, ventral view; C. First antenna and frontalorgan;D. Armaturesof first antennalsetae;E.Detailof armature of e-seta ofthe first antenna;F.Second antenna;G. Hook appendage of endopodite of the left second antenna; H. Endopodite of the right second antenna; I. Mandible; J. Toothed edge of basale of mandible.Scales in mm." httpUri="https://zenodo.org/record/1199736/files/figure.png" pageId="30" pageNumber="331">Figure 13 J</figureCitation>
|
||
) with an inner sharply pointed spine tooth, a rounded spine tooth, and six sub-serrate cutting teeth. The spine teeth and the first cutting tooth are offset from the others. There is also a very broad inner tooth.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFE7EFD5EBDB1" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFE7EFEB4BDE9" box="[199,286,404,428]" italics="true" pageId="30" pageNumber="331">Maxilla</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF53506FE7EFE11BDE9" box="[301,443,404,429]" captionStart="FIGURE 14" captionStartId="32.[151,250,1967,1989]" captionTargetBox="[248,1336,221,1935]" captionTargetId="figure@32.[220,1366,193,1949]" captionTargetPageId="32" captionText="FIGURE 14. Boroecia alaska male, 2.68 mm, Holotype. A. Maxilla (distorted); B. Fifth limb; C. Sixth limb; D. Caudal furca; E. Copulatory appendage.Scales in mm" httpUri="https://zenodo.org/record/1199738/files/figure.png" pageId="30" pageNumber="331">Figure 14 A</figureCitation>
|
||
). The anatomy of this limb is like in the other species. The first endopodite segment has 6 anterior, 3 posterior and a single lateral seta. There are five terminal spines. The terminal segment has three terminal claw setae, subtended by a pair of slim setae.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFDEAFD37BE79" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFDEAFE9DBE5D" box="[199,311,512,536]" italics="true" pageId="30" pageNumber="331">Fifth limb</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF5356DFE15FE7BBE5D" box="[326,465,511,536]" captionStart="FIGURE 14" captionStartId="32.[151,250,1967,1989]" captionTargetBox="[248,1336,221,1935]" captionTargetId="figure@32.[220,1366,193,1949]" captionTargetPageId="32" captionText="FIGURE 14. Boroecia alaska male, 2.68 mm, Holotype. A. Maxilla (distorted); B. Fifth limb; C. Sixth limb; D. Caudal furca; E. Copulatory appendage.Scales in mm" httpUri="https://zenodo.org/record/1199738/files/figure.png" pageId="30" pageNumber="331">Figure 14 B</figureCitation>
|
||
). The setation of this limb is the same as in the female and similar to that of the other species. The longest terminal seta is 8.2% CL.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFDA2FEDDBEC0" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFDA2FE94BE25" box="[199,318,584,608]" italics="true" pageId="30" pageNumber="331">Sixth limb</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF53579FDADFE43BE25" box="[338,489,583,608]" captionStart="FIGURE 14" captionStartId="32.[151,250,1967,1989]" captionTargetBox="[248,1336,221,1935]" captionTargetId="figure@32.[220,1366,193,1949]" captionTargetPageId="32" captionText="FIGURE 14. Boroecia alaska male, 2.68 mm, Holotype. A. Maxilla (distorted); B. Fifth limb; C. Sixth limb; D. Caudal furca; E. Copulatory appendage.Scales in mm" httpUri="https://zenodo.org/record/1199738/files/figure.png" pageId="30" pageNumber="331">Figure 14 C</figureCitation>
|
||
). All setae are short except the three terminal setae, which are 33.7% CL and terminally plumose.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFD7AFF53BE88" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFD7AFE61BEED" box="[199,459,656,680]" italics="true" pageId="30" pageNumber="331">Copulatory appendage</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF535F0FD65FDC3BEED" box="[475,617,655,680]" captionStart="FIGURE 14" captionStartId="32.[151,250,1967,1989]" captionTargetBox="[248,1336,221,1935]" captionTargetId="figure@32.[220,1366,193,1949]" captionTargetPageId="32" captionText="FIGURE 14. Boroecia alaska male, 2.68 mm, Holotype. A. Maxilla (distorted); B. Fifth limb; C. Sixth limb; D. Caudal furca; E. Copulatory appendage.Scales in mm" httpUri="https://zenodo.org/record/1199738/files/figure.png" pageId="30" pageNumber="331">Figure 14 E</figureCitation>
|
||
). The length of the appendage is 30.0% CL and it contains six oblique muscles.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFD32FAB4BF51" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFD32FEF1BEB5" box="[199,347,728,752]" italics="true" pageId="30" pageNumber="331">Caudal furca</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF53541FD3DFE5FBEB5" box="[362,501,727,752]" captionStart="FIGURE 14" captionStartId="32.[151,250,1967,1989]" captionTargetBox="[248,1336,221,1935]" captionTargetId="figure@32.[220,1366,193,1949]" captionTargetPageId="32" captionText="FIGURE 14. Boroecia alaska male, 2.68 mm, Holotype. A. Maxilla (distorted); B. Fifth limb; C. Sixth limb; D. Caudal furca; E. Copulatory appendage.Scales in mm" httpUri="https://zenodo.org/record/1199738/files/figure.png" pageId="30" pageNumber="331">Figure 14 D</figureCitation>
|
||
). The caudal furca has eight pairs of hook setae. There is the sharp disparity in the lengths of the fourth and fifth seta pairs that is typical of the genus. The longest hook seta is 20.5% CL.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFCF5FBA0BF7D" blockId="30.[151,1437,151,2013]" box="[199,1034,799,824]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFCF5FE8FBF7D" bold="true" box="[199,293,799,824]" pageId="30" pageNumber="331">Female.</emphasis>
|
||
The female
|
||
<typeStatus id="8031878FFFAFFFF53599FCCAFDB8BF7D" box="[434,530,800,824]" pageId="30" pageNumber="331" type="paratype">paratype</typeStatus>
|
||
came from the same sample as the
|
||
<typeStatus id="8031878FFFAFFFF5378BFCF5FBACBF7D" box="[928,1030,799,824]" pageId="30" pageNumber="331" type="holotype">holotype</typeStatus>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFCAEFEE8B870" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFCAEFE9FBF1E" box="[199,309,836,859]" italics="true" pageId="30" pageNumber="331">Carapace</emphasis>
|
||
(Figre 15 A,B). The length of the carapace of the
|
||
<typeStatus id="8031878FFFAFFFF5374AFCAFFC6BBF18" box="[865,961,837,861]" pageId="30" pageNumber="331" type="paratype">paratype</typeStatus>
|
||
is
|
||
<quantity id="987294C8FFAFFFF537CAFCAEFBE2BF19" box="[993,1096,836,861]" metricMagnitude="-3" metricUnit="m" metricValue="3.06" pageId="30" pageNumber="331" unit="mm" value="3.06">3.06 mm</quantity>
|
||
; its height is 49.7% CL and its width is 35.3% CL (see
|
||
<tableCitation id="12080C96FFAFFFF53581FC8DFE56BFC5" box="[426,508,871,896]" captionStart="TABLE 1" captionStartId="3.[125,212,549,572]" captionText="TABLE 1. The ranges of the carapace lengths (mm) of the six Boroecia species. N is the number of specimens measured. For B. danae, (a) are the data from Poulsen (1973)" pageId="30" pageNumber="331">Table 1</tableCitation>
|
||
). The carapace has a more pronounced anterior taper than the male. The shoulder vaults are rounded. The posterior dorsal corner is rounded and there are three spines on both valves. The LAG opens just anterior to the posterior margin of the hinge between the valves, and the RAG opens at the PVC. Just dorsal of the RAG on both valves are the openings of four pairs of edge glands. The rostrum (10.2% CL) is a little longer than the depth of the incisure (8.1% CL). There are some rather obscure longitudinal striae paralleling the ventral margin.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFBAAFF59B880" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFBAAFECCB81D" box="[199,358,1088,1112]" italics="true" pageId="30" pageNumber="331">Frontal organ</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF5355CFBD5FD86B81D" box="[375,556,1087,1112]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figures 15 C,D</figureCitation>
|
||
). The stem (19.4% CL) projects well beyond the end of the limb of the first antenna. The capitulum (
|
||
<figureCitation id="C7B125A8FFAFFFF5359AFB8EFD96B839" box="[433,572,1124,1149]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 C</figureCitation>
|
||
) (10.5% CL) is angled down about 30°, and arches at two thirds length to a pointed tip. The proximal half of its dorsal surface is coarsely spinose, whereas most of its ventral surface is finely spinose.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFB3AFD7CB93D" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFB3AFEC8B8AD" box="[199,354,1232,1256]" italics="true" pageId="30" pageNumber="331">First antenna</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF5355EFB25FDA0B8AD" box="[373,522,1231,1256]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 D</figureCitation>
|
||
). The limb (15.6% CL) is clearly segmented and shorter than the stem of the capitulum. Both basal segments have patches of short spines on the ventral surface. The dorsal seta (16.3% CL) is inserted medially on the second segment and reaches to two-thirds the length of the capitulum. The a–d setae (12.2% CL) have slightly inflated bases and are less than half the length of the e-seta (31.6% CL). The end of the eseta is slightly flanged and lined with fine spinules.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECFA6EFC07BA15" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECFA6EFED3B9D9" box="[199,377,1412,1436]" italics="true" pageId="30" pageNumber="331">Second antenna</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF535A3FA6EFDE1B9D9" box="[392,587,1412,1437]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figures 15 E,G,F</figureCitation>
|
||
). The protopodite (39.0% CL) is over two and a half times the length of the first endopodite segment (14.9% CL), which carries a terminal seta that is wrapped around the articulation with the second segment (
|
||
<figureCitation id="C7B125A8FFAFFFF5357CFA26FE4EB9A1" box="[343,484,1484,1509]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 G</figureCitation>
|
||
). The combined lengths of the distal exopodite segments is 6.5% CL, and the longest swimming seta is 37.3% CL. The first endopodite segment (
|
||
<figureCitation id="C7B125A8FFAFFFF5376EFA05FC64BA4D" box="[837,974,1519,1544]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 F</figureCitation>
|
||
) has a pointed processus mamillaris and the a- and b-setae are bare, with the a-seta being the slightly one. The g-seta (37.3% CL) is flanged distally to the end of the f-seta (23.8% CL) and the flange is lined with fine spinules.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECF9B6FAB5BA30" blockId="30.[151,1437,151,2013]" box="[199,1311,1628,1653]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECF9B6FE8ABA31" box="[199,288,1628,1652]" italics="true" pageId="30" pageNumber="331">Labrum</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF53505F9B6FE11BA31" box="[302,443,1628,1653]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 H</figureCitation>
|
||
). The labrum has a smooth, shallow notch and is flanked by 17–24 filaments.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECF96AFC7EBADD" blockId="30.[151,1437,151,2013]" box="[199,980,1663,1689]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECF96AFE98BADD" box="[199,306,1664,1688]" italics="true" pageId="30" pageNumber="331">Mandible</emphasis>
|
||
,
|
||
<emphasis id="6DFEE53FFFAFFFF5356BF96AFD98BADD" box="[320,562,1664,1688]" italics="true" pageId="30" pageNumber="331">maxilla and fifth limb</emphasis>
|
||
are very similar to those of the male.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534ECF94EFC93BB35" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534ECF94EFE93BAF9" box="[199,313,1700,1724]" italics="true" pageId="30" pageNumber="331">Sixth limb</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF53563F94EFE61BAF9" box="[328,459,1700,1725]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">
|
||
Figure
|
||
<date id="2B341FEDFFAFFFF535B7F94EFE61BAF9" box="[412,459,1700,1725]" pageId="30" pageNumber="331" value="2015-01">15 I</date>
|
||
</figureCitation>
|
||
). The basale carries seven setae on its ventral surface, all of which are finely spinose. On its dorsal surface, the bare terminal seta, which is considered to be a remnant of the exopodite (Boxshall 1998) is shorter than the sub-terminal plumose seta. The first endopodite segment carries a single seta ventrally that is inserted at about two-thirds its length. The second segment has a single medial seta both ventrally and dorsally, both of which extend just beyond the end of the segment. There are three terminal setae on last endopodite segment, with the central one (11.6% CL) being the longest.
|
||
</paragraph>
|
||
<paragraph id="5F35392DFFAFFFF534EDF896FAC8BB98" blockId="30.[151,1437,151,2013]" pageId="30" pageNumber="331">
|
||
<emphasis id="6DFEE53FFFAFFFF534EDF896FEF0BBD1" box="[198,346,1916,1940]" italics="true" pageId="30" pageNumber="331">Caudal furca</emphasis>
|
||
(
|
||
<figureCitation id="C7B125A8FFAFFFF53541F896FDA1BBD1" box="[362,523,1916,1941]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 J,K</figureCitation>
|
||
). The furca is typical for the genus with eight pairs of claw setae; the longest of which is 23.8% CL. There is a marked difference between the length of the fourth and fifth pairs, and the terminal two pairs carry very fine spinules (
|
||
<figureCitation id="C7B125A8FFAFFFF535C9F82EFDC1BB99" box="[482,619,1988,2013]" captionStart="FIGURE 15" captionStartId="33.[151,250,1909,1931]" captionTargetBox="[215,1365,227,1874]" captionTargetId="figure@33.[198,1385,193,1894]" captionTargetPageId="33" captionText="FIGURE 15. Boroecia alaska female 3.04 mm, Paratype. A. Carapace, lateral view; B. Carapace, ventral view; C. Capitulum of frontal organ; D. First antenna and frontal organ; E. Second antenna; F. Endopodite of second antenna; G. Detail of end of first segment of second antenna endopodite showing the terminal seta; H. Labrum; I. Sixth limb; J. Caudal furca; K. Detail of 6–8th caudal furca spines.Scales in mm." httpUri="https://zenodo.org/record/1199740/files/figure.png" pageId="30" pageNumber="331">Figure 15 K</figureCitation>
|
||
). The inner surface of the furca’s lamellae are covered in fine setules.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |