139 lines
22 KiB
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139 lines
22 KiB
XML
<document id="EA0CC1F134A822A0A02ED58836723FFA" ID-CLB-Dataset="46404" ID-DOI="10.11646/zootaxa.3765.5.1" ID-GBIF-Dataset="003624c4-a041-424b-8095-fdaf4c353df3" ID-ISSN="1175-5326" ID-Zenodo-Dep="225992" ID-ZooBank="EC778AFE-04E2-4211-A464-CE7050A992F9" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460386129257" checkinUser="plazi" docAuthor="Jażdżewski, Krzysztof, Grabowski, Michał & Kupryjanowicz, Janusz" docDate="2014" docId="78347E126A79C821948609E6FC19F823" docLanguage="en" docName="zt03765p417.pdf" docOrigin="Zootaxa 3765 (5)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Palaeogammarus debroyeri Jażdżewski, Grabowski & Kupryjanowicz, 2014, sp. nov." docType="treatment" docVersion="9" lastPageNumber="405" masterDocId="840D066A6A7DC82594110821FF8DFFC8" masterDocTitle="Further records of Amphipoda from Baltic Eocene amber with first evidence of prae-copulatory behaviour in a fossil amphipod and remarks on the taxonomic position of Palaeogammarus Zaddach, 1864" masterLastPageNumber="417" masterPageNumber="401" pageNumber="405" updateTime="1698297609076" updateUser="ExternalLinkService">
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<mods:title id="FDFCD8FC5ADD0D061589E3CBAA5DC34B">Further records of Amphipoda from Baltic Eocene amber with first evidence of prae-copulatory behaviour in a fossil amphipod and remarks on the taxonomic position of Palaeogammarus Zaddach, 1864</mods:title>
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<mods:name id="75BB96F521D1A82D0A1C04E1752B0763" type="personal">
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<mods:namePart id="586B511ADBCB800EF319190E3EB10E9D">Jażdżewski, Krzysztof</mods:namePart>
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<mods:namePart id="B632C0A2719D3D10928B4A99815069AC">Grabowski, Michał</mods:namePart>
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<mods:namePart id="C6FC81E31377D77238BDDC1C115ACA73">Kupryjanowicz, Janusz</mods:namePart>
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<mods:title id="4E954F98B5361241A8959FD0EE333AAB">Zootaxa</mods:title>
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<mods:date id="FB830AEF173A34BAF9087472013C6179">2014</mods:date>
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<mods:number id="B0407636F35E4ECDC9F48AE7B80A4E85">3765</mods:number>
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<treatment id="78347E126A79C821948609E6FC19F823" ID-DOI="http://doi.org/10.5281/zenodo.6125418" ID-GBIF-Taxon="119415503" ID-Zenodo-Dep="6125418" LSID="urn:lsid:plazi:treatment:78347E126A79C821948609E6FC19F823" httpUri="http://treatment.plazi.org/id/78347E126A79C821948609E6FC19F823" lastPageNumber="405" pageId="4" pageNumber="405">
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<subSubSection id="B8879C8F6A79C821948609E6FDBBFE28" box="[151,566,455,480]" pageId="4" pageNumber="405" type="nomenclature">
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<paragraph id="F022CF046A79C821948609E6FDBBFE28" blockId="4.[151,566,455,480]" box="[151,566,455,480]" pageId="4" pageNumber="405">
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<heading id="AB6A78686A79C821948609E6FDBBFE28" bold="true" box="[151,566,455,480]" fontSize="10" level="2" pageId="4" pageNumber="405" reason="2">
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<emphasis id="C2E913166A79C821948609E6FDBBFE28" bold="true" box="[151,566,455,480]" pageId="4" pageNumber="405">
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<taxonomicName id="379DB4876A79C821948609E6FE58FE28" box="[151,469,455,480]" class="Malacostraca" family="Crangonyctidae" genus="Palaeogammarus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="4" pageNumber="405" phylum="Arthropoda" rank="species" species="debroyeri" status="sp. nov.">
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<emphasis id="C2E913166A79C821948609E6FE58FE28" bold="true" box="[151,469,455,480]" italics="true" pageId="4" pageNumber="405">Palaeogammarus debroyeri</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="D9DAAE6D6A79C82195CD09E6FDBBFE28" box="[476,566,455,480]" pageId="4" pageNumber="405" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="B8879C8F6A79C82194860A28FC3BF849" pageId="4" pageNumber="405" type="description">
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<paragraph id="F022CF046A79C82194860A28FA8CFC4D" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
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<emphasis id="C2E913166A79C82194860A28FEA4FDEA" bold="true" box="[151,297,521,546]" pageId="4" pageNumber="405">Description.</emphasis>
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Head without rostrum, distinctly (by 1/3) longer than first pereon segment. Eyes not visible. Cephalic lobe rounded. Coxal plates 1–4 long with successive plates covering hind margins of former ones. Coxal plates 1– 3 with single, rather long setae on lower margins. Fourth coxal plate large, with prominent posterodistal lobe (
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<figureCitation id="68A6D3816A79C821917F0A6EFF2BFD43" captionStart="FIGURE 7" captionStartId="6.[151,250,1877,1899]" captionTargetBox="[241,1347,193,1855]" captionTargetId="figure@6.[240,1347,193,1856]" captionTargetPageId="6" captionText="FIGURE 7. Palaeogammarus debroyeri sp. nov., details of morphology: a) anterior part of specimen A 1, b) basis P VII of specimen A 1, c) posterior part of specimen K." httpUri="https://zenodo.org/record/225997/files/figure.png" pageId="4" pageNumber="405">Fig. 7</figureCitation>
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a). Antenna I reaches more or less to half of body length, antenna II distinctly shorter—reaching only to 1/4 or to 1/3 of body length. Tips of antennal flagella broken or hidden, estimation of number of articles of A I flagellum slightly over 15 and of A II flagellum—as less than 10. Accessory flagellum (
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<figureCitation id="68A6D3816A79C82197EE0A98FBCEFD1A" box="[1023,1091,697,722]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Fig. 6</figureCitation>
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a), visible only in one case and possesses 2 articles. First article of A I peduncle somewhat longer (by 1/3) than second one, second longer by 1/3 than third article. Peduncle articles 4 and 5 of A II subequal in length. In one specimen a subacute triangular gland cone, reaching middle of the 3rd article of A II peduncle visible (
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<figureCitation id="68A6D3816A79C82197710B04FC2EFCF6" box="[864,931,805,830]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Fig. 6</figureCitation>
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b). Mouthparts generally invisible except one mandibular palp (
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<figureCitation id="68A6D3816A79C821954D0B69FE13FCA9" box="[348,414,840,865]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Fig. 6</figureCitation>
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b), where the second article bears several long setae on its lower margin and is twice as long as third article. Third article of mandibular palp almond-shaped, with 3–4 long apical setae (
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<figureCitation id="68A6D3816A79C82190B10B4DFB6EFC4D" box="[1184,1251,876,901]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Fig. 6</figureCitation>
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b).
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</paragraph>
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<paragraph id="F022CF046A79C82194860BAEFD05FBD9" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
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Pereonite II shortest. Pereon and pleon segments, as well as urosomite I smooth, without any structures on surface or on posterior margins. Posterior margins of urosomites II and III armed with several robust setae. This feature is visible only in two specimens, but in our opinion it is simply a result of their better preservation and visibility if compared to other individuals (
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<figureCitation id="68A6D3816A79C82195E40BD9FDCEFBD9" box="[501,579,1016,1041]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Figs. 6</figureCitation>
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a, 7c).
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</paragraph>
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<paragraph id="F022CF046A79C82194D60C3DFC67FA86" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
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Anterior pereopods mostly invisible, except two cases when gnathopod apical articles were distinguishable. In one case (
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<figureCitation id="68A6D3816A79C821951A0C1EFEC2FB9F" box="[267,335,1087,1112]" captionStart="FIGURE 8" captionStartId="7.[151,250,1835,1857]" captionTargetBox="[151,1436,193,1813]" captionTargetId="figure@7.[151,1436,193,1813]" captionTargetPageId="7" captionText="FIGURE 8. Palaeogammarus debroyeri sp. nov., details of morphology: a) distal part of G I in specimen D 1, b) detached distal part of hind pereiopod, c) telson lobes and exopodites of U III in specimen F 1, d) inner side view of U III and side view of telson in specimen H 1." httpUri="https://zenodo.org/record/225998/files/figure.png" pageId="4" pageNumber="405">Fig. 8</figureCitation>
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a), regularly oval shape of propodus seems to indicate the distal part of G I, probably a female. Anterodistal part of propodus and posterodistal part of carpus of this appendage armed with several long and short robust setae. In the second case (
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<figureCitation id="68A6D3816A79C82196010CA4FDD8FB56" box="[528,597,1157,1182]" captionStart="FIGURE 7" captionStartId="6.[151,250,1877,1899]" captionTargetBox="[241,1347,193,1855]" captionTargetId="figure@6.[240,1347,193,1856]" captionTargetPageId="6" captionText="FIGURE 7. Palaeogammarus debroyeri sp. nov., details of morphology: a) anterior part of specimen A 1, b) basis P VII of specimen A 1, c) posterior part of specimen K." httpUri="https://zenodo.org/record/225997/files/figure.png" pageId="4" pageNumber="405">Fig. 7</figureCitation>
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a), the oblique and somewhat concave shape of palm margin suggests the distal part of male G II. Posterior pereopods (V–VII) quite well visible in several specimens. Their basal articles widely oval, some 50% longer than wide, with large rounded postero-distal lobes (
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<figureCitation id="68A6D3816A79C82190420CEDFB13FB2D" box="[1107,1182,1228,1253]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Figs 6</figureCitation>
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a, b). Serration or any armature of posterior margins of the basal articles not visible in all but one case, where a delicate serration may be noted (
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<figureCitation id="68A6D3816A79C82194F60D33FEA0FAE3" box="[231,301,1298,1323]" captionStart="FIGURE 7" captionStartId="6.[151,250,1877,1899]" captionTargetBox="[241,1347,193,1855]" captionTargetId="figure@6.[240,1347,193,1856]" captionTargetPageId="6" captionText="FIGURE 7. Palaeogammarus debroyeri sp. nov., details of morphology: a) anterior part of specimen A 1, b) basis P VII of specimen A 1, c) posterior part of specimen K." httpUri="https://zenodo.org/record/225997/files/figure.png" pageId="4" pageNumber="405">Fig. 7</figureCitation>
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b). The state of preservation of most specimens allows the supposition that such serration of these basal articles is not visible due to the poor optical properties of the medium.
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</paragraph>
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<paragraph id="F022CF046A79C82194D60D79FA11FA36" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
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Of the posterior pereopods, P VI longest and P VII shortest. Merus, carpus and propodus articles of these appendages subequal in length (
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<figureCitation id="68A6D3816A79C82196190D5DFDDEFA5D" box="[520,595,1404,1429]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Figs 6</figureCitation>
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a,b, 8b). Their margins armed with 1–3 groups of robust setae, longer in distal part of each article; longest setae surpass width of article. Dactyls of posterior pereopods are nearly straight, acute, long and slender. Their length ca. 1/3 of propodus length (
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<figureCitation id="68A6D3816A79C82197980DE3FC43FA13" box="[905,974,1474,1499]" captionStart="FIGURE 8" captionStartId="7.[151,250,1835,1857]" captionTargetBox="[151,1436,193,1813]" captionTargetId="figure@7.[151,1436,193,1813]" captionTargetPageId="7" captionText="FIGURE 8. Palaeogammarus debroyeri sp. nov., details of morphology: a) distal part of G I in specimen D 1, b) detached distal part of hind pereiopod, c) telson lobes and exopodites of U III in specimen F 1, d) inner side view of U III and side view of telson in specimen H 1." httpUri="https://zenodo.org/record/225998/files/figure.png" pageId="4" pageNumber="405">Fig. 8</figureCitation>
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b). Dactyls of pereopods III and IV less slender. Longest distal setae of pereopod propoduses long but somewhat shorter than dactyl length (
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<figureCitation id="68A6D3816A79C82190E20DC4FAB7FA36" box="[1267,1338,1509,1534]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Figs 6</figureCitation>
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a, b, 8b).
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</paragraph>
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<paragraph id="F022CF046A79C82194D60E29FAC2F9E9" blockId="4.[151,1437,521,2027]" box="[199,1359,1544,1569]" pageId="4" pageNumber="405">
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Postero-distal parts of epimeral plates 2 and 3 acutely produced (
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<figureCitation id="68A6D3816A79C821978C0E29FC68F9E9" box="[925,997,1544,1569]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Figs 6</figureCitation>
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a, b).
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<collectingCountry id="888A8F946A79C82190350E29FBD1F9E9" box="[1060,1116,1544,1569]" name="India" pageId="4" pageNumber="405">Hind</collectingCountry>
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margins not serrated.
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</paragraph>
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<paragraph id="F022CF046A79C82194D60E0DFC9EF8D0" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
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Uropod I strong, much longer than U II, reaching to nearly middle of U III. Uropods I and II similar in structure, with peduncle somewhat longer than rami. Latter more or less equal in length and armed with 1–3 groups of robust setae on lateral margins and at the tips. Among the tip with robust setae, one bigger than the others (
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<figureCitation id="68A6D3816A79C821917E0E53FF2AF966" captionStart="FIGURE 7" captionStartId="6.[151,250,1877,1899]" captionTargetBox="[241,1347,193,1855]" captionTargetId="figure@6.[240,1347,193,1856]" captionTargetPageId="6" captionText="FIGURE 7. Palaeogammarus debroyeri sp. nov., details of morphology: a) anterior part of specimen A 1, b) basis P VII of specimen A 1, c) posterior part of specimen K." httpUri="https://zenodo.org/record/225997/files/figure.png" pageId="4" pageNumber="405">Fig. 7</figureCitation>
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c). Uropod III with long lanceolate exopodite, whose distal end could be recognized as a small second article with 1–3 accompanying robust setae. Outer lateral margin of exopodite with 2–3 groups of robust setae. Endopodite small (
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<figureCitation id="68A6D3816A79C82194F30EFDFEBDF93D" box="[226,304,1756,1781]" captionStart="FIGURE 6" captionStartId="5.[151,250,1880,1902]" captionTargetBox="[189,1399,195,1858]" captionTargetId="figure@5.[187,1400,195,1858]" captionTargetPageId="5" captionText="FIGURE 6. Habitus of Palaeogammarus debroyeri sp. nov.: a) holotype (specimen A), b) paratype (specimen B)." httpUri="https://zenodo.org/record/225996/files/figure.png" pageId="4" pageNumber="405">Figs. 6</figureCitation>
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a, b, 8d) and rather difficult to discern in most specimens. Length ca. 1/4 of exopodite length; tip with a setule (
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<figureCitation id="68A6D3816A79C82194EA0EDEFEB0F8D0" box="[251,317,1791,1816]" captionStart="FIGURE 8" captionStartId="7.[151,250,1835,1857]" captionTargetBox="[151,1436,193,1813]" captionTargetId="figure@7.[151,1436,193,1813]" captionTargetPageId="7" captionText="FIGURE 8. Palaeogammarus debroyeri sp. nov., details of morphology: a) distal part of G I in specimen D 1, b) detached distal part of hind pereiopod, c) telson lobes and exopodites of U III in specimen F 1, d) inner side view of U III and side view of telson in specimen H 1." httpUri="https://zenodo.org/record/225998/files/figure.png" pageId="4" pageNumber="405">Fig. 8</figureCitation>
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d). Protopodite of U III short, rectangular.
|
||
</paragraph>
|
||
<paragraph id="F022CF046A79C82194D60F03FC3BF849" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
|
||
Telson not well visible in most cases; it seems to be deeply cleft, usually turned upwards to urosome, reaching up to 2/3 of the length of last urosomite. Both telson lobes have 2 apical setae, one bigger and second smaller, both turned upwards (
|
||
<figureCitation id="68A6D3816A79C82195420F49FE17F849" box="[339,410,1896,1921]" captionStart="FIGURE 8" captionStartId="7.[151,250,1835,1857]" captionTargetBox="[151,1436,193,1813]" captionTargetId="figure@7.[151,1436,193,1813]" captionTargetPageId="7" captionText="FIGURE 8. Palaeogammarus debroyeri sp. nov., details of morphology: a) distal part of G I in specimen D 1, b) detached distal part of hind pereiopod, c) telson lobes and exopodites of U III in specimen F 1, d) inner side view of U III and side view of telson in specimen H 1." httpUri="https://zenodo.org/record/225998/files/figure.png" pageId="4" pageNumber="405">Figs 8</figureCitation>
|
||
c,d). Telson length less than half of U III length.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B8879C8F6A79C82194D60FADFC19F823" pageId="4" pageNumber="405" type="etymology">
|
||
<paragraph id="F022CF046A79C82194D60FADFC19F823" blockId="4.[151,1437,521,2027]" pageId="4" pageNumber="405">
|
||
<emphasis id="C2E913166A79C82194D60FADFEC3F86D" bold="true" box="[199,334,1932,1957]" pageId="4" pageNumber="405">Etymology.</emphasis>
|
||
The species name is given in honour of Dr. Claude
|
||
<collectingCountry id="888A8F946A79C82197860FACFC35F86C" box="[919,952,1933,1956]" name="South Georgia and the South Sandwich Islands" pageId="4" pageNumber="405">De</collectingCountry>
|
||
Broyer (Royal Belgian Institute of Natural Sciences,
|
||
<collectingCountry id="888A8F946A79C821951A0F8EFEFDF800" box="[267,368,1967,1992]" name="Belgium" pageId="4" pageNumber="405">Belgium</collectingCountry>
|
||
), an illustrious specialist in the knowledge of morphology, taxonomy and biogeography of
|
||
<taxonomicName id="379DB4876A79C82194860FF3FE93F823" box="[151,286,2002,2027]" class="Malacostraca" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="4" pageNumber="405" phylum="Arthropoda" rank="order">Amphipoda</taxonomicName>
|
||
, with many thanks for his incessant help and friendship.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |