705 lines
94 KiB
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705 lines
94 KiB
XML
<document ID-CLB-Dataset="8443" ID-DOI="http://dx.doi.org/10.3897/zookeys.1015.59683" ID-GBIF-Dataset="c4d4417f-0d6e-42db-a288-bc00e679248f" ID-PMC="PMC7878467" ID-Pensoft-Pub="1313-2970-1015-115" ID-Pensoft-UUID="6A7A97D24F8B582BA5549DDC3ADAD8DE" ID-PubMed="33613043" ID-ZooBank="9CD39543892243088FCBF91306EC3806" ModsDocID="1313-2970-1015-115" checkinTime="1612497286502" checkinUser="pensoft" docAuthor="Tomikawa, Ko, Watanabe, Hiromi Kayama, Tanaka, Katsuhiko & Ohara, Yasuhiko" docDate="2021" docId="65A2D44089665A559E0B23CBBB3EB1E8" docLanguage="en" docName="ZooKeys 1015: 115-127" docOrigin="ZooKeys 1015" docPubDate="2021-02-04" docSource="http://dx.doi.org/10.3897/zookeys.1015.59683" docTitle="Princaxelia marianaensis Tomikawa & Watanabe 2021, sp. nov." docType="treatment" docUuid="B127A8B4-7BDA-4027-A7DA-8C04F61EA6BA" docUuidSource="ZooBank" docVersion="6" id="6A7A97D24F8B582BA5549DDC3ADAD8DE" lastPageNumber="115" masterDocId="6A7A97D24F8B582BA5549DDC3ADAD8DE" masterDocTitle="A new species of Princaxelia from Shinkai Seep Field, Mariana Trench (Crustacea, Amphipoda, Pardaliscidae)" masterLastPageNumber="127" masterPageNumber="115" pageNumber="115" updateTime="1732940415537" updateUser="ExternalLinkService">
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<mods:titleInfo id="BC18EABB20FCE1770881742BD5E466CF">
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<mods:title id="3B8036DEDAA18235BF744CA393BB5FD2">A new species of Princaxelia from Shinkai Seep Field, Mariana Trench (Crustacea, Amphipoda, Pardaliscidae)</mods:title>
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</mods:titleInfo>
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<mods:name id="E2CA0BEA30E9137017B8FCD107616E91" type="personal">
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<mods:namePart id="754E23044827A8EAE955DAC1A6FD1886">Tomikawa, Ko</mods:namePart>
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<mods:affiliation id="17E0B8209FEDB67B76B7E662C0FE1F20">Graduate School of Humanities and Social Sciences, Hiroshima University, Higashi-Hiroshima 739 - 8524, Japan</mods:affiliation>
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<mods:nameIdentifier id="C62CFBE4116F0F1B266FA56CC09137B9" type="email">tomikawa@hiroshima-u.ac.jp</mods:nameIdentifier>
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<mods:name id="86C6C5FF8A6C9E6800BB13FD1C4F0583" type="personal">
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<mods:roleTerm id="EDE5135B8BECA89CBD5A4A526E78C75C">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="DBA1D8B56C19BC3CDA72B28299065DAF">Watanabe, Hiromi Kayama</mods:namePart>
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<mods:affiliation id="3527F869A86C8FA794DA2DCD1EF5E1A2">X-STAR, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2 - 15 Natsushima-cho, Yokosuka, Kanagawa 237 - 0061, Japan</mods:affiliation>
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</mods:name>
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<mods:name id="E393A31C24459567FF3EC7B8AF54EE9B" type="personal">
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<mods:roleTerm id="79D1DC6FAA3F4E779316C642FF317B9D">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="D8530449E6E219BEEE45A30E9CCC825C">Tanaka, Katsuhiko</mods:namePart>
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<mods:affiliation id="654E7DB359A06C93B7394EB33514D67C">Department of Marine Biology, School of Marine Science and Technology, Tokai University, 3 - 20 - 1, Orido, Shimizu, Shizuoka, Shizuoka 424 - 8610, Japan</mods:affiliation>
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</mods:name>
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<mods:namePart id="72EF1ED6A89ED3F938D519FD9F2D7DAA">Ohara, Yasuhiko</mods:namePart>
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<mods:affiliation id="311C8D8AEC110B12751413B1D0163BBB">Hydrographic and Oceanographic Department of Japan, 3 - 1 - 1 Kasumigaseki, Chiyoda-ku, Tokyo 100 - 8932, Japan & Research Institute for Marine Geodynamics (IMG), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2 - 15 Natsushima-cho, Yokosuka, Kanagawa 237 - 0061, Japan & Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464 - 8602, Japan</mods:affiliation>
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<mods:title id="C24B85385650617112717C2084804E5B">ZooKeys</mods:title>
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<mods:part id="D95A7E8F8F3C48689B1F1E7DA52EC028">
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<mods:date id="B57A6ACDE0904DC060922CFDBA45C3CB">2021</mods:date>
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<mods:number id="9D41F9A4513C518EF82BE5131D2883E1">2021-02-04</mods:number>
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<mods:number id="07D9CF9516389044AA9BC814D21A701B">1015</mods:number>
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<mods:start id="07B85730FD2DAE54C33D3B1F16E15249">115</mods:start>
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<mods:url id="6C0E7A62CA1E3B0144D4B6A19534405C">http://dx.doi.org/10.3897/zookeys.1015.59683</mods:url>
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<mods:classification id="B0E39AE525747535900378BC743050BD">journal article</mods:classification>
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<mods:identifier id="AA27DA85DB4A392385B049A62A8A90F5" type="DOI">http://dx.doi.org/10.3897/zookeys.1015.59683</mods:identifier>
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<mods:identifier id="771C32F152462CABCF724AFE394BD61E" type="Pensoft-Pub">1313-2970-1015-115</mods:identifier>
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<mods:identifier id="295E7100CB01E8EDAAD1187B9242A3D3" type="ZooBank">9CD39543892243088FCBF91306EC3806</mods:identifier>
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<treatment id="65A2D44089665A559E0B23CBBB3EB1E8" ID-GBIF-Taxon="177212460" LSID="urn:lsid:zoobank.org:act:B127A8B4-7BDA-4027-A7DA-8C04F61EA6BA" httpUri="http://treatment.plazi.org/id/65A2D44089665A559E0B23CBBB3EB1E8" lastPageNumber="115" pageId="0" pageNumber="115" scope_family="Pardaliscidae" scope_order="Amphipoda">
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<subSubSection id="0E3703882A04EA9C319905AFB45E7D79" pageId="0" pageNumber="115" type="nomenclature">
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<paragraph id="C38143039B937486A1E3AFA3775E2130" pageId="0" pageNumber="115">
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<taxonomicName id="2FE69C7B6F14B54C11D3B9AAD368821D" ID-CoL="7ZKZQ" LSID="http://zoobank.org/B127A8B4-7BDA-4027-A7DA-8C04F61EA6BA" authority="Tomikawa & Watanabe" authorityName="Tomikawa & Watanabe" authorityYear="2021" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia marianaensis" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="marianaensis" status="sp. nov.">Princaxelia marianaensis Tomikawa & Watanabe</taxonomicName>
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<taxonomicNameLabel id="5BB9422B088CA73C8F620E242ADCE793" pageId="0" pageNumber="115">sp. nov.</taxonomicNameLabel>
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<figureCitation id="2BF9FCEB68C64FBEE5A98275AEDDA4FE" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm). Habitus, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure2" httpUri="https://binary.pensoft.net/fig/505318" pageId="0" pageNumber="115">Figures 2</figureCitation>
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<figureCitation id="4E3794879C7F9FD2B2DA8ECF21935E09" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">, 3</figureCitation>
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<figureCitation id="976961AB4D2DEBC8DAB0C484AE7FEE72" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">, 4</figureCitation>
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<figureCitation id="792AB0EFB43016F57FD6C6AFD4F7C4E3" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">, 5</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="070C2890E805011728C7D10429CB41C9" pageId="0" pageNumber="115" type="materials_examined">
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<paragraph id="75AF99E1CB5BDB28C3F12E7C3D1372EC" pageId="0" pageNumber="115">Material examined.</paragraph>
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<paragraph id="9965B16661CAA35B637B010B8B8A56C5" pageId="0" pageNumber="115">
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<emphasis id="196F96DD2F6970746C6FFDC818447EBF" bold="true" italics="true" pageId="0" pageNumber="115">Holotype</emphasis>
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: female (BL 23.9 mm),
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<emphasis id="EF678CF4AFFE18F199C300A92203BD47" bold="true" pageId="0" pageNumber="115">AMNH</emphasis>
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_IZC 00361360, the surface of the chimney which was named as "Chim 4" in CH 3 site in the Shinkai Seep Field (
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<bibRefCitation id="789AB6B8408E10BD367A23E274F78D3F" DOI="https://doi.org/10.1002/2016GC006449" author="Okumura, T" journalOrPublisher="Geochemistry, Geophysics, Geosystems" pageId="0" pageNumber="115" pagination="3775 - 3796" refId="B15" refString="Okumura, T, Ohara, Y, Stern, RJ, Yamanaka, T, Onishi, Y, Watanabe, H, Chen, C, Bloomer, SH, Pujana, I, Sakai, S, Ishii, T, Takai, K, 2016. Brucite chimney formation and carbonate alteration at the Shinkai Seep Field, a serpentinite-hosted vent system in the southern Mariana forearc. Geochemistry, Geophysics, Geosystems 17 (9): 3775 - 3796, DOI: https://doi.org/10.1002/2016GC006449" title="Brucite chimney formation and carbonate alteration at the Shinkai Seep Field, a serpentinite-hosted vent system in the southern Mariana forearc." url="https://doi.org/10.1002/2016GC006449" volume="17" year="2016">Okumura et al. 2016</bibRefCitation>
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), Mariana Trench (
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<geoCoordinate id="68FE6620258A0EE8B277B8E414406784" degrees="11" direction="north" minutes="39.36" orientation="latitude" precision="9" value="11.656">11°39.36'N</geoCoordinate>
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,
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<geoCoordinate id="5587C9CE1CB3F655ACA34095F5A74640" degrees="143" direction="west" minutes="2.88" orientation="longitude" precision="9" value="-143.048">143°2.88'W</geoCoordinate>
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), 5,689-5,683 m, collected by H. K. Watanabe, 17 July 2014.
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</paragraph>
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</subSubSection>
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<subSubSection id="DFA3F2E0DAF07F5F187B86FF55649C3F" pageId="0" pageNumber="115" type="diagnosis">
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<paragraph id="E37C4D8AB9A4152D925FC305C013F65A" pageId="0" pageNumber="115">Diagnosis.</paragraph>
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<paragraph id="416E5243C8B2F85D64A50751DCF06F38" pageId="0" pageNumber="115">Posterodistal corner of epimeral plate 3 quadrate. Primary flagellum article 1 of female antenna 1 not elongate; accessory flagellum article 1 longer than each of the articles 2-6. Maxilla 1 inner plate with 1 terminal plumose seta; palp article 2 expanded, with 8 or 9 apical robust setae. Dactylus of gnathopods 1 and 2 with three strong projections on posterior margin proximal to base. Dorsal margin of coxa 5 highest at proximal end. Venral margin of coxa 7 weakly concave. Telson lobe uniformly tapering distally.</paragraph>
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</subSubSection>
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<subSubSection id="C174722CE1D393E45376DA5A4B456C14" pageId="0" pageNumber="115" type="description">
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<paragraph id="2EB83C9EEDD0E0ABD9728953811303E3" pageId="0" pageNumber="115">Description</paragraph>
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<paragraph id="50E9EACEB3B414A82CB5D17BDEF4B180" pageId="0" pageNumber="115">
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<emphasis id="402255AE0D5AAA8F0DFE878F12CB7C82" bold="true" pageId="0" pageNumber="115">
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(female).
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<emphasis id="2F5E4260658C3D22F49F6BB594FE72BF" italics="true" pageId="0" pageNumber="115">Head</emphasis>
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</emphasis>
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(Fig.
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<figureCitation id="80C177AC0CF74179152B02900936A118" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm). Habitus, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure2" httpUri="https://binary.pensoft.net/fig/505318" pageId="0" pageNumber="115">2</figureCitation>
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) as long as pereonites 1 and 2 combined; rostrum short, pointed; lateral cephalic corner rounded; eyes absent. Pleon (Fig.
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<figureCitation id="56531D4684A203CED404FE5AB0D8561F" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm). Habitus, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure2" httpUri="https://binary.pensoft.net/fig/505318" pageId="0" pageNumber="115">2</figureCitation>
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) with dorsal surfaces of pleonites 1-3 smooth; epimeral plates 1-3 (Fig.
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<figureCitation id="D8DD7BE655B36AA770347D25EAC15DA3" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3A-C</figureCitation>
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) with setae on ventral submargin and posterior margin; posterodistal corner of epimeral plates 2 and 3 quadrate. Dorsal margin of urosomites 1 and 2 (Fig.
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<figureCitation id="1E0453676FA0EC63163A23A3F0E6103B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm). Habitus, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure2" httpUri="https://binary.pensoft.net/fig/505318" pageId="0" pageNumber="115">2</figureCitation>
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) with distally oriented projection.
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</paragraph>
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<caption id="A7D4E9DB61C0667AA83E237129E8FA9A" doi="10.3897/zookeys.1015.59683.figure2" httpUri="https://binary.pensoft.net/fig/505318" pageId="0" pageNumber="115" start="Figure 2" startId="F2">
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<paragraph id="EDEAA2824F2BD38E15BCE61CA1ED865D" pageId="0" pageNumber="115">
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<emphasis id="2CB1AA613207C703924E904FCAA96B00" bold="true" pageId="0" pageNumber="115">Figure 2.</emphasis>
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<taxonomicName id="F2B0EA25AEC6C228874C9A224537020C" authorityName="Tomikawa & Watanabe" authorityYear="2021" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia marianaensis" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="marianaensis">
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<emphasis id="05761D48EBD5677BEBCF52F3D97ED5D5" italics="true" pageId="0" pageNumber="115">Princaxelia marianaensis</emphasis>
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</taxonomicName>
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Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm). Habitus, lateral view.
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</paragraph>
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</caption>
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<caption id="F86EC8E36E45638BBF3700700723170B" doi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115" start="Figure 3" startId="F3">
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<paragraph id="3044DDD1B5FEB349FC9C1E87B7D8AA20" pageId="0" pageNumber="115">
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<emphasis id="E87BD3E80A6AE0F87C5758DE1BDE504A" bold="true" pageId="0" pageNumber="115">Figure 3.</emphasis>
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<taxonomicName id="91CC5213624E3E0AD47C0EFB978D066B" authorityName="Tomikawa & Watanabe" authorityYear="2021" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia marianaensis" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="marianaensis">
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<emphasis id="B3D41131671DACB3720FA21721220D9C" italics="true" pageId="0" pageNumber="115">Princaxelia marianaensis</emphasis>
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</taxonomicName>
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Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm)
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<emphasis id="DD493271320610ACCB7D4C1F340391D2" bold="true" pageId="0" pageNumber="115">A</emphasis>
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epimeral plate 1, lateral view
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<emphasis id="898058E63AB89AAC71D619445FBBD532" bold="true" pageId="0" pageNumber="115">B</emphasis>
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epimeral plate 2, lateral view
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<emphasis id="5ACCAEF5AE55EF5B5BA639B5B5F5BA7D" bold="true" pageId="0" pageNumber="115">C</emphasis>
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epimeral plate 3, lateral view
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<emphasis id="EFA31105FF618003C9A1E881F494F05D" bold="true" pageId="0" pageNumber="115">D</emphasis>
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antenna 1, lateral view, some distal articles of primary flagellum omitted
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<emphasis id="9338AF4E32720D55BEB7005063ED3595" bold="true" pageId="0" pageNumber="115">E</emphasis>
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antenna 2, lateral view, flagellum omitted
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<emphasis id="1335FE6EF1434D1EF084A05210FA718E" bold="true" pageId="0" pageNumber="115">F</emphasis>
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upper lip, anterior view
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<emphasis id="AD4CC0364C16C99E4F77E87CC973A1BF" bold="true" pageId="0" pageNumber="115">G</emphasis>
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left mandible, medial view
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<emphasis id="150E5B76C5F9041565BF6E03661A6CB6" bold="true" pageId="0" pageNumber="115">H</emphasis>
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left mandible, medial view
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|
<emphasis id="59F00FC881DAC45FC77783247CB4CFA3" bold="true" pageId="0" pageNumber="115">I</emphasis>
|
|
right mandible, medial view
|
|
<emphasis id="E46B7096876D27A5F1BEEFB2885C47A8" bold="true" pageId="0" pageNumber="115">J</emphasis>
|
|
lower lip, anterior view
|
|
<emphasis id="D899F8EE2051707D419141F2F4380C53" bold="true" pageId="0" pageNumber="115">K</emphasis>
|
|
maxilla 1, dorsal view
|
|
<emphasis id="EBCD77CB3F00D30C1EAE71C239C36CF2" bold="true" pageId="0" pageNumber="115">L</emphasis>
|
|
palp of maxilla 1, dorsal view
|
|
<emphasis id="21E98AF5BA7277F411D12A14712726C5" bold="true" pageId="0" pageNumber="115">M</emphasis>
|
|
maxilla 2, dorsal view
|
|
<emphasis id="F6925C9CEA7BB9284104AF334760962C" bold="true" pageId="0" pageNumber="115">N</emphasis>
|
|
maxilliped, dorsal view.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph id="2D765E46DA542BF5B7E002654B27F94B" pageId="0" pageNumber="115">
|
|
<emphasis id="E439C9C6D7D663D3F4FA95DAE6D796D8" bold="true" italics="true" pageId="0" pageNumber="115">Antenna 1</emphasis>
|
|
(Fig.
|
|
<figureCitation id="FE5E3588C4D94C8A3606CF83C0F5D0BA" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3D</figureCitation>
|
|
) length 0.3 times BL (distal part broken off); peduncular articles 1-3 with length ratio 1.0: 0.7: 0.3; peduncular article 1 broadened, with anterolateral cluster of setae, some weakly plumose; posterior margin of peduncular articles 2 and 3 with clusters of short setae; primary flagellum article 1 length 1.2 times width, 3.0 times as long as article 2; accessory flagellum 6-articulated, article 1 0.9 times as long as articles 2-6 combined; primary flagellum with at least 47 articles.
|
|
</paragraph>
|
|
<paragraph id="ADBCB83F46321D7A2D842413FF95C575" pageId="0" pageNumber="115">
|
|
<emphasis id="066EDD995F8BA756753610F51664BABE" bold="true" italics="true" pageId="0" pageNumber="115">Antenna 2</emphasis>
|
|
(Fig.
|
|
<figureCitation id="5008E3B80474F8F753926FD6AB692359" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3E</figureCitation>
|
|
) length 0.4 times BL; anterior margin of peduncular article 2 with setae; peduncular articles 4 and 5 with clusters of short setae on anterior margin, article 4 1.1 times longer than article 5; flagellum with 42 articles.
|
|
</paragraph>
|
|
<paragraph id="6FEAEF7384594883E4FB170F3680EB08" pageId="0" pageNumber="115">
|
|
<emphasis id="7D16FBEAD7BCD155E563407867BB1777" bold="true" italics="true" pageId="0" pageNumber="115">Upper lip</emphasis>
|
|
(Fig.
|
|
<figureCitation id="B09C5D5A96114336A37A3C85D76D96E6" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3F</figureCitation>
|
|
) asetose, with asymmetrically incised ventral margin. Mandibles (Fig.
|
|
<figureCitation id="8FAA73D916324C23174D922204CD825A" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3G-I</figureCitation>
|
|
) slightly asymmetric, incisor margins broad, anteroventral corner with strong tooth; left lacinia mobilis (Fig.
|
|
<figureCitation id="4D33E6D4BA6DF2346F60F398F9EA7F48" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3H</figureCitation>
|
|
) broad, about 0.7 times as long as incisor, multi-dentate; right incisor (Fig.
|
|
<figureCitation id="4FC1CAA0706C67957969F0A5A0D376C6" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3I</figureCitation>
|
|
) with three teeth on proximal to anterodorsal corner; right lacinia weak, with two teeth; accessory setal row of left and right mandibles each with about 20 robust setae; molar absent; mandibular palp 3-articulated with length ratio 1.0: 1.7: 1.5; article 1 asetose; article 2 posteriorly reflected, articles 2 and 3 with 18 and 22 setae, respectively. Lower lip (Fig.
|
|
<figureCitation id="9443A7F2D5A8CFFC4F81C6AF0C09568B" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3J</figureCitation>
|
|
) with broad outer and distinct inner lobes. Maxilla 1 (Fig.
|
|
<figureCitation id="2B5D2C843FB64D9400327CAF107F038D" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3K, L</figureCitation>
|
|
) with inner and outer plates and palp; inner plate small with apical plumose seta; outer plate subrectangular, with 9 robust apical setae and strong projection; palp 2-articulate; article 1 with marginal setae; article 2 expanded distally with nine and eight robust setae on apical margin of left and right maxilla 1, respectively, and with apical submargin and medial margin lined with setae. Maxilla 2 (Fig.
|
|
<figureCitation id="BAE83FE434E3E1CEC84DEF873A33DDDC" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3M</figureCitation>
|
|
) with inner plate bearing row of 13 plumose setae along apical to medial margin; outer plate slightly longer than inner plate, with three apical plumose setae. Maxilliped (Fig.
|
|
<figureCitation id="59927F75690C71E686EBBFDD52E410BD" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A epimeral plate 1, lateral view B epimeral plate 2, lateral view C epimeral plate 3, lateral view D antenna 1, lateral view, some distal articles of primary flagellum omitted E antenna 2, lateral view, flagellum omitted F upper lip, anterior view G left mandible, medial view H left mandible, medial view I right mandible, medial view J lower lip, anterior view K maxilla 1, dorsal view L palp of maxilla 1, dorsal view M maxilla 2, dorsal view N maxilliped, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure3" httpUri="https://binary.pensoft.net/fig/505319" pageId="0" pageNumber="115">3N</figureCitation>
|
|
) with inner and outer plates and palp; inner plate small, subtriangular, not reaching base of palp, with plumose apical seta and short subapical seta; outer plate oval, reaching base of article 2 of palp, with setae along apical to medial margin; palp 4-articulate, long: article 2 longest with inner marginal rows of setae, article 3 with clusters of setae on dorsal and ventral faces and medial marginal setae, and article 4 slender, with robust setae on medial margin.
|
|
</paragraph>
|
|
<paragraph id="498DC2DE33C1A73FF74354DE6799962D" pageId="0" pageNumber="115">
|
|
<emphasis id="EEA6706A3E0C93D1473E719056F4C945" bold="true" italics="true" pageId="0" pageNumber="115">Gnathopod 1</emphasis>
|
|
(Fig.
|
|
<figureCitation id="F71CFAA6FB50E1A8389C7462D2B82299" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4A, B</figureCitation>
|
|
) coxa subrectangular, length 1.8 times width, ventral margin straight, posterior submargin and medial face with setae; basis arched, with anterior and posterior margins with numerous setae in a row; posterior margin of merus with sparse setae; carpus oval, length 2.5 times width, posterior margin and medial face setose; propodus slender, length 0.6 times that of carpus, posterior margin weakly convex with setae; dactylus slender, slightly curved, posterior margin with three strong projections proximal to base. Gnathopod 2 (Fig.
|
|
<figureCitation id="91B9FAD18FC98887431FACA8C5C599DF" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4C, D</figureCitation>
|
|
) coxa tapering anteriorly, length 1.8 times width, posterior submargin with setae; basis slender and straight, anterior and posterior margins densely setose; carpus widely produced posteriorly with numerous long setae, length 2.3 times width; propodus and dactylus similar to gnathopod 1.
|
|
</paragraph>
|
|
<caption id="D305231A3A8E29DFCB544C3DBB067787" doi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115" start="Figure 4" startId="F4">
|
|
<paragraph id="A9F28820D31F541E460E5AFD981BD459" pageId="0" pageNumber="115">
|
|
<emphasis id="E7143C11416FBA51DF7D155EF44EC8FD" bold="true" pageId="0" pageNumber="115">Figure 4.</emphasis>
|
|
<taxonomicName id="770438A0A63C2FA4AB6DA76DE6B45085" authorityName="Tomikawa & Watanabe" authorityYear="2021" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia marianaensis" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="marianaensis">
|
|
<emphasis id="2602265EC770D0403422554FAA7B5E54" italics="true" pageId="0" pageNumber="115">Princaxelia marianaensis</emphasis>
|
|
</taxonomicName>
|
|
Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm)
|
|
<emphasis id="A9E54B72FB026E0AB0F3D36731EC6254" bold="true" pageId="0" pageNumber="115">A</emphasis>
|
|
gnathopod 1, lateral view
|
|
<emphasis id="EA7CD70AF9A9E1FDFB7F9775DD825A1A" bold="true" pageId="0" pageNumber="115">B</emphasis>
|
|
dactylus of gnathopod 1, lateral view
|
|
<emphasis id="5E1EE2975B48C7DD15A45B98119BFE6B" bold="true" pageId="0" pageNumber="115">C</emphasis>
|
|
gnathopod 2, lateral view
|
|
<emphasis id="9B9AFB10E601F46807A4A414D86F5030" bold="true" pageId="0" pageNumber="115">D</emphasis>
|
|
dactylus of gnathopod 2, lateral view
|
|
<emphasis id="8A712DDB06BF6C0FCFB85D7585821127" bold="true" pageId="0" pageNumber="115">E</emphasis>
|
|
pereopod 3, lateral view
|
|
<emphasis id="D26665663540A0C76CF024ADF98C84B5" bold="true" pageId="0" pageNumber="115">F</emphasis>
|
|
dactylus of pereopod 3, lateral view
|
|
<emphasis id="34A1799CA309BFAA6DA221B83C05D468" bold="true" pageId="0" pageNumber="115">G</emphasis>
|
|
pereopod 4, lateral view
|
|
<emphasis id="851E4424120FF3381AC982F6FAD53821" bold="true" pageId="0" pageNumber="115">H</emphasis>
|
|
pereopod 5, lateral view
|
|
<emphasis id="4A8A46C7B13887545D02898F55DD4E0F" bold="true" pageId="0" pageNumber="115">I</emphasis>
|
|
dactylus of pereopod 5
|
|
<emphasis id="01BE3866C60AAC38A31701919955A2E9" bold="true" pageId="0" pageNumber="115">J</emphasis>
|
|
pereopod 6, lateral view
|
|
<emphasis id="A17A1B4FBC262E096530F2A22F34472F" bold="true" pageId="0" pageNumber="115">K</emphasis>
|
|
pereopod 7, lateral view.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph id="421355F7EC63D6D65B2D50661D287244" pageId="0" pageNumber="115">
|
|
<emphasis id="BC39A54A0EA659081FBC7404D9CBA0B4" bold="true" italics="true" pageId="0" pageNumber="115">Pereopod 3</emphasis>
|
|
(Fig.
|
|
<figureCitation id="6CCE21B68E80A210D3E87509B53A6E98" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4E, F</figureCitation>
|
|
) coxa weakly rounded ventrally, with submarginal setae; basis long, posterior margin strongly setose; merus, carpus, propodus, and dactylus in length ratio 1.0: 1.4: 1.4: 0.5; posterior margin of propodus lined with short setae. Pereopod 4 (Fig.
|
|
<figureCitation id="DDF63EB545FBFC9846AB55ACA6A0F743" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4G</figureCitation>
|
|
) similar to pereopod 3, with coxa tapering anteriorly. Pereopod 5 (Fig.
|
|
<figureCitation id="A6F237DB994790D95A0CDEF9D2428298" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4H, I</figureCitation>
|
|
) coxa subtriangular, dorsal margin highest at proximal end, anterior and ventral submargins with setae; basis length 2.9 times width, with clusters of setae on anterior margin proximal to base, posterodistal corner weakly produced; merus, carpus, propodus, and dactylus in length ratio 1.0: 0.8: 1.2: 0.3; carpus and propodus with robust setae on anterior and posterior margins. Pereopod 6 (Fig.
|
|
<figureCitation id="BBAA3DF345D9993C724ABF11C3EAB48C" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4J</figureCitation>
|
|
) coxa weakly concave; basis length 2.5 times width, posterodistal corner quadrate; merus, carpus, propodus, and dactylus in length ratio 1.0: 1.0: 1.2: 0.3. Pereopod 7 (Fig.
|
|
<figureCitation id="1835BA5B00072CD8EBF96AAD0E324F6E" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A gnathopod 1, lateral view B dactylus of gnathopod 1, lateral view C gnathopod 2, lateral view D dactylus of gnathopod 2, lateral view E pereopod 3, lateral view F dactylus of pereopod 3, lateral view G pereopod 4, lateral view H pereopod 5, lateral view I dactylus of pereopod 5 J pereopod 6, lateral view K pereopod 7, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure4" httpUri="https://binary.pensoft.net/fig/505320" pageId="0" pageNumber="115">4K</figureCitation>
|
|
) coxa weakly concave; basis length 1.9 times width, weakly expanded anteriorly, posterodistal corner quadrate.
|
|
</paragraph>
|
|
<paragraph id="86EF3CF85FE5743C68186A0D77E03663" pageId="0" pageNumber="115">
|
|
<emphasis id="5AE0FED97EB7C0430745CB0D135E4D8C" bold="true" italics="true" pageId="0" pageNumber="115">Coxal gills</emphasis>
|
|
(Fig.
|
|
<figureCitation id="D880BD524C97A558C692B575ABB34A61" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm). Habitus, lateral view." figureDoi="10.3897/zookeys.1015.59683.figure2" httpUri="https://binary.pensoft.net/fig/505318" pageId="0" pageNumber="115">2</figureCitation>
|
|
) on gnathopod 2, pereopods 3-6; coxal gills 2-4 elongate, coxal gill 2 longest, its length exceeding the distal part of basis of gnathopod 2, coxal gill 6 shortest.
|
|
</paragraph>
|
|
<paragraph id="36DCB50DA4572BF346E7BA26DBB3B0B0" pageId="0" pageNumber="115">
|
|
<emphasis id="B12EA80CA24936E856CB08FB12544B1D" bold="true" italics="true" pageId="0" pageNumber="115">Pleopods 1-3</emphasis>
|
|
(Fig.
|
|
<figureCitation id="3C862D3952D13D2D6D4A95983152EBF9" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5A-C</figureCitation>
|
|
) each with paired retinacula (Fig.
|
|
<figureCitation id="A95BEF34F4CC8D7573D9E8545CC31534" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5B</figureCitation>
|
|
) on inner distal margin of peduncle, and bifid (clothespin) setae (Fig.
|
|
<figureCitation id="F9531329D45F6FDBE401443AF8736508" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5C</figureCitation>
|
|
) on inner basal margin of inner ramus; rami articles wide and flattened.
|
|
</paragraph>
|
|
<caption id="00EFE03A55F3E676E08AA0B83A149D85" doi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115" start="Figure 5" startId="F5">
|
|
<paragraph id="28E9832FB27E69692FDD65BDFC601EAA" pageId="0" pageNumber="115">
|
|
<emphasis id="1ED61EDE0D180C1632A1061200555E25" bold="true" pageId="0" pageNumber="115">Figure 5.</emphasis>
|
|
<taxonomicName id="62AF6B3B100839E05B49C402D0C64540" authorityName="Tomikawa & Watanabe" authorityYear="2021" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia marianaensis" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="marianaensis">
|
|
<emphasis id="53583F51BECC8FF52B3306A4BB18F6AD" italics="true" pageId="0" pageNumber="115">Princaxelia marianaensis</emphasis>
|
|
</taxonomicName>
|
|
Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm)
|
|
<emphasis id="F726219506237528BB7D3510B8AE3F81" bold="true" pageId="0" pageNumber="115">A</emphasis>
|
|
pleopod 1, anterior view, some setae on rami omitted
|
|
<emphasis id="A6AAB9036792E2CE05A9047580FCDD5E" bold="true" pageId="0" pageNumber="115">B</emphasis>
|
|
retinacula on peduncle of pleopod 1, anterior view
|
|
<emphasis id="B44A9EFF1521122E11E513761A3F725A" bold="true" pageId="0" pageNumber="115">C</emphasis>
|
|
bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view
|
|
<emphasis id="D98AEF25AE0249693851490D4C70B43C" bold="true" pageId="0" pageNumber="115">D</emphasis>
|
|
uropod 1, dorsal view, distal part of outer ramus broken
|
|
<emphasis id="E8CEE476201AD6D0A5B784FD5AA1F67E" bold="true" pageId="0" pageNumber="115">E</emphasis>
|
|
uropod 2, dorsal view
|
|
<emphasis id="A6D8DDCF993C45A5FDAF547BB3853E79" bold="true" pageId="0" pageNumber="115">F</emphasis>
|
|
telson, dorsal view.
|
|
<taxonomicName id="48DFCE0394074B6112665F4FFB114275" authorityName="Lorz" authorityYear="2010" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia jamiesoni" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="jamiesoni">
|
|
<emphasis id="E9B2A7E8856D3DAAB2AA1FB6B4423EB4" italics="true" pageId="0" pageNumber="115">Princaxelia jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
<normalizedToken id="66EE209C4ECDC7CE715CCB01BEB4A894" originalValue="Lörz">Loerz</normalizedToken>
|
|
, 2010, holotype female (BL 56.2 mm)
|
|
<emphasis id="EEF95F3911D74F55DD219D7E4491F60B" bold="true" pageId="0" pageNumber="115">G</emphasis>
|
|
palp of maxilla 1, dorsal view
|
|
<emphasis id="307C2C6D55EAA42A430228EA10D6F8A9" bold="true" pageId="0" pageNumber="115">H</emphasis>
|
|
dactylus of gnathopod 1, lateral view
|
|
<emphasis id="F7791D5DB17664ED9883034B574F3C2B" bold="true" pageId="0" pageNumber="115">I</emphasis>
|
|
dactylus of gnathopod 2, medial view
|
|
<emphasis id="3E499AC55A09E8FD836562E9F4788156" bold="true" pageId="0" pageNumber="115">J</emphasis>
|
|
telson, dorsal view.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph id="F5AB3EF84F7D860A5B079398BC9E72CA" pageId="0" pageNumber="115">
|
|
<emphasis id="DD4F3DBEA0D83D22F49A2AB337EE21E1" bold="true" italics="true" pageId="0" pageNumber="115">Uropod 1</emphasis>
|
|
(Fig.
|
|
<figureCitation id="C9AFC6F5E1CEB74411EA0CD2036D0FF8" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5D</figureCitation>
|
|
) peduncle longer than rami, with 14 basofacial setae, distomedial peduncular projection very strong; inner ramus length 0.8 times that of peduncle, outer ramus distally damaged, rami with setal row along medial and lateral margins. Uropod 2 (Fig.
|
|
<figureCitation id="04DCE7C35C36690ED469560ACF2806D5" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5E</figureCitation>
|
|
) peduncle slightly longer than rami, with four basofacial setae, distomedial peduncular spine shorter than that of uropod 1; inner ramus length 1.2 times that of outer ramus, rami with setal row along medial and lateral margins. Uropod 3 missing (damaged).
|
|
</paragraph>
|
|
<paragraph id="8450491207F922B0DF93FDEB3E7D187F" pageId="0" pageNumber="115">
|
|
<emphasis id="2906AF3ED35CEC9E26BE374B1F0FD7EF" bold="true" italics="true" pageId="0" pageNumber="115">Telson</emphasis>
|
|
(Fig.
|
|
<figureCitation id="07F7E8D5D36FE4E1C10A8C3718B85375" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5F</figureCitation>
|
|
) length 2.3 times width, with cleft extending 80% its length; lobes tapering distally with facial setae; apex of each lobe shallowly incised with small robust seta.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="A084AF85FA86A9503EF0389D14586A74" pageId="0" pageNumber="115" type="etymology">
|
|
<paragraph id="B8B7ACE039FB68DBE5F90FBB665254F1" pageId="0" pageNumber="115">Etymology.</paragraph>
|
|
<paragraph id="9C7EDE53B942B1522AFB4B1DEE555133" pageId="0" pageNumber="115">The specific name is an adjective derived from the type locality, the Mariana Trench.</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="0A87B1023805390F56D3EFFF0D1C024D" pageId="0" pageNumber="115" type="dna sequence">
|
|
<paragraph id="1E0A3B7BCEE783AA61F62F062DC0FE6B" pageId="0" pageNumber="115">DNA sequence.</paragraph>
|
|
<paragraph id="842B7EEA56C1F35651CBB177969CD6EE" pageId="0" pageNumber="115">A single nucleotide sequence of COI was obtained from the holotype (AMNH_IZC 00361360; 658 bp).</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="702A4258A3C5722D35BDCC8EEAB5E8B3" pageId="0" pageNumber="115" type="remarks">
|
|
<paragraph id="20FF28BE531B3704F53745E329DFDF4A" pageId="0" pageNumber="115">Remarks.</paragraph>
|
|
<paragraph id="D22738DE62CA49A05ADC0DF3CB17BA03" pageId="0" pageNumber="115">
|
|
The morphologies of
|
|
<taxonomicName id="448D805CA9A3F125AC974234DC4DB4F1" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="A0A72C2E2D1652492CC5182DC1D64E06" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. and congeners are summarized in Table
|
|
<tableCitation id="E5E6B103B8548BE8C687C140C8BD616E" captionStart="Table 1" captionStartId="T1" captionText="Table 1. Morphological comparison of Princaxelia species." httpUri="http://table.plazi.org/id/47A31BB393161F68FDF3804F3CAD258C" pageId="0" pageNumber="115" tableUuid="47A31BB393161F68FDF3804F3CAD258C">1</tableCitation>
|
|
.
|
|
<taxonomicName id="37C463D91CDFFF3988DB6EF9153F4192" authorityName="Tomikawa & Watanabe" authorityYear="2021" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia marianaensis" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="marianaensis">
|
|
<emphasis id="CD23D6BF4494156A54148CDFC022BEBE" italics="true" pageId="0" pageNumber="115">Princaxelia marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. is most similar to
|
|
<taxonomicName id="32A2004878EAE90CA97DD7829BF341B4" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="8B86396C19BA33714F36B5428492E9BA" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
Dahl, 1959 in having a short first flagellar article of the female antenna 1, a weakly setose maxilla 1, coxa 5 with its dorsal margin highest at the proximal end and its distal margin rounded, and a uniformly tapering telson. However,
|
|
<taxonomicName id="C31ED16F56E370746B52DC1D0324408B" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="04F6199D53398F89E3A32DDA2289CE01" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. differs from the description of
|
|
<taxonomicName id="751240F6ED1F01845FC2CB6C5D3A7DAE" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="84E5369CCED191709ACFADCEDBBA52E4" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
in having the posterodistal corner of epimeral plate 3 quadrate in
|
|
<taxonomicName id="82FCAB320A57B81B07407C7F9E34EBA7" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="EC7FF784A17828E1401F24D11DDE8A91" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. but rounded in
|
|
<taxonomicName id="79CA98242785D5B8A7B0D5F3B127F0EB" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="0F35CE056FF4E3283C1E48058AEC4ED0" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
; the accessory flagellum article 1 of the female antenna 1 longer than each of the articles 2-6 in
|
|
<taxonomicName id="89A49D7A6EB888459FD58E18D2B589CB" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="1C4822231C7531B3CC9D37DBA6501EAD" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. but equal to the length of the remaining segments in
|
|
<taxonomicName id="03B5699436F481F0B7B7A40FB0864B64" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="955046FC492F61A599E3BEF6A727BD2E" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
; and the ventral margin of the coxa 7 weakly concave in
|
|
<taxonomicName id="84F577847509E1F7EE0F11EECDC8C793" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="51C9F8872FF5C46728D5AA0EEF7D1102" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. but straight in
|
|
<taxonomicName id="4DF4EC0FA16DEE8142B037E2ACA0D1E5" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="0F9DE2564ED0893CAA21B8D1A87FC537" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
<caption id="47A31BB393161F68FDF3804F3CAD258C" ID-Table-UUID="47A31BB393161F68FDF3804F3CAD258C" httpUri="http://table.plazi.org/id/47A31BB393161F68FDF3804F3CAD258C" pageId="0" pageNumber="115" start="Table 1" startId="T1">
|
|
<paragraph id="10ACAF5B699DC7CFA664A7C403BD2AE8" pageId="0" pageNumber="115">
|
|
<emphasis id="E1193B69206D11AAA62B8AC0F74E7415" bold="true" pageId="0" pageNumber="115">Table 1.</emphasis>
|
|
Morphological comparison of
|
|
<taxonomicName id="455622A760A63BC9075CD328A15DDBF2" authorityName="Dahl" authorityYear="1959" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="genus">
|
|
<emphasis id="5018F18CAFDABE8BB9175F8E37C7F07D" italics="true" pageId="0" pageNumber="115">Princaxelia</emphasis>
|
|
</taxonomicName>
|
|
species.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph id="2BF22F647F09E8AF2840EBEF4A2DA516" pageId="0" pageNumber="115">
|
|
<table id="63E39F43D9E3A0C15095F5255CE3842B" pageId="0" pageNumber="115">
|
|
<tr id="927BAFD3CEB73E3E4BD4BD13CC00A679" pageId="0" pageNumber="115">
|
|
<th id="68B69848ADB5027823219EC14436F5FF" colspan="1" isEmpty="true" pageId="0" pageNumber="115" rowspan="1">-</th>
|
|
<th id="E9608DEBFC8271E4FAEC0CDFD43F2A5D" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<taxonomicName id="A0879FEAB6C9E3DA32759C817618F3D4" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="4DC2547ECD4122F245DF6F32B5BE0A72" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
Tomikawa & Watanabe, sp. nov.
|
|
</th>
|
|
<th id="9FA56E9DC2EB878344E8CEEC33D66DA7" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<taxonomicName id="35FF3D78A84A57EC307F4CF4945F75FE" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="1D9F0D54090A69D121904BDDE6FBBD91" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
Dahl, 1959
|
|
</th>
|
|
<th id="2B72303BC6BCF5E0124CD1A419BA4141" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<taxonomicName id="CD1456F41FF91A23DC10DC07DF53C725" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="66F7277CCA13345A6B266648F1EEE4A9" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
<normalizedToken id="341D76B3627A2B01A996EE94CDE6444A" originalValue="Lörz">Loerz</normalizedToken>
|
|
, 2010
|
|
</th>
|
|
<th id="41D68D6106E11633C3436CE5E3FDE1C6" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<taxonomicName id="8B9CA27DEE4E2A16582E0CD9A46C1CC9" lsidName="P. magna" pageId="0" pageNumber="115" rank="species" species="magna">
|
|
<emphasis id="EE9D9E708F771C76CB4355F33281B71C" italics="true" pageId="0" pageNumber="115">P. magna</emphasis>
|
|
</taxonomicName>
|
|
Kamenskaya, 1977
|
|
</th>
|
|
<th id="912DB0CF3AFC2343702F548CA911099F" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<taxonomicName id="A1916DF8CA3676787F458683616402E6" lsidName="P. stephenseni" pageId="0" pageNumber="115" rank="species" species="stephenseni">
|
|
<emphasis id="11A66F2136A9B4FD42491ACB82F654A3" italics="true" pageId="0" pageNumber="115">P. stephenseni</emphasis>
|
|
</taxonomicName>
|
|
Dahl, 1959
|
|
</th>
|
|
</tr>
|
|
<tr id="8B2693FD86E77885B49C514CCFDFEF44" pageId="0" pageNumber="115">
|
|
<td id="484308CBBC27AE534C43BC44D8BD2457" colspan="1" pageId="0" pageNumber="115" rowspan="1">Maximum body size</td>
|
|
<td id="060FDE0C5D961E29647AAA0AAC8D8867" colspan="1" pageId="0" pageNumber="115" rowspan="1">female 23.9 mm</td>
|
|
<td id="FA0B0994A2CBA92909256BEE2109FE22" colspan="1" pageId="0" pageNumber="115" rowspan="1">male 21 mm, female 32 mm</td>
|
|
<td id="E646545B412D81E2104268E05FE5939B" colspan="1" pageId="0" pageNumber="115" rowspan="1">male 57 mm, female 61 mm</td>
|
|
<td id="B299187C80FBEEEC65F2AED889972A15" colspan="1" pageId="0" pageNumber="115" rowspan="1">male 52 mm</td>
|
|
<td id="757FF4A44E99B00C71448907D34985E4" colspan="1" pageId="0" pageNumber="115" rowspan="1">male 10 mm, female 11 mm</td>
|
|
</tr>
|
|
<tr id="9396904E2F31C7F75F6468521EAB577E" pageId="0" pageNumber="115">
|
|
<td id="B418F2380913DCF76E16F59C67A30349" colspan="1" pageId="0" pageNumber="115" rowspan="1">Epimeral plate 3 posterodistal corner</td>
|
|
<td id="07CBD8E1A1659B1FC1B2B7D5291269B9" colspan="1" pageId="0" pageNumber="115" rowspan="1">quadrate</td>
|
|
<td id="C738FB0F8A0082C0EDFF51E6072CB5CB" colspan="1" pageId="0" pageNumber="115" rowspan="1">rounded</td>
|
|
<td id="DC39149CFB8A564C1C9BFEDEA3164402" colspan="1" pageId="0" pageNumber="115" rowspan="1">quadrate</td>
|
|
<td id="621B2A07C13AEAECA6DE9D0278CA0858" colspan="1" pageId="0" pageNumber="115" rowspan="1">quadrate</td>
|
|
<td id="06E57BA0ECCF775A0C604AA50D7E75D6" colspan="1" pageId="0" pageNumber="115" rowspan="1">weakly rounded</td>
|
|
</tr>
|
|
<tr id="5F953736829B9CD26A8351E981FBCECB" pageId="0" pageNumber="115">
|
|
<td id="F04C159AAEBF4E3CFCBBE2C0D1AEF0CA" colspan="1" pageId="0" pageNumber="115" rowspan="1">Dorsal projections on urosomites 1 and 2</td>
|
|
<td id="00C7B7745DE869BCB875E4E8A45E23EA" colspan="1" pageId="0" pageNumber="115" rowspan="1">pointing toward distal end</td>
|
|
<td id="549BC32F45345168CAC0FDA49DD130F0" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
<td id="860D7BF87E0B0FD09935BF7283C80666" colspan="1" pageId="0" pageNumber="115" rowspan="1">pointing toward distal end</td>
|
|
<td id="118EC817DC179D81EAB5DC0B681C80BA" colspan="1" pageId="0" pageNumber="115" rowspan="1">pointing upright</td>
|
|
<td id="171863240CA1ACC707F21B5841EF7DEA" colspan="1" pageId="0" pageNumber="115" rowspan="1">pointing toward distal end</td>
|
|
</tr>
|
|
<tr id="760C46D55FFDF94AF6E5CC4106244166" pageId="0" pageNumber="115">
|
|
<td id="2F422B6FD6DD79556FAC5E6A5CAC511F" colspan="1" pageId="0" pageNumber="115" rowspan="1">Upper lip</td>
|
|
<td id="E8705F15AE93F6D6CC5CD654854860EC" colspan="1" pageId="0" pageNumber="115" rowspan="1">strongly asymmetrical</td>
|
|
<td id="0316197830BF866800D5D773DBD095C1" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
<td id="F88EDFAFFBDC0B059AA01224B12D666B" colspan="1" pageId="0" pageNumber="115" rowspan="1">slightly asymmetrical</td>
|
|
<td id="9407823553A1751EE45CFDA2DB85A3B1" colspan="1" pageId="0" pageNumber="115" rowspan="1">strongly asymmetrical</td>
|
|
<td id="3262BD4C4948B43F8B55E85C7551BE25" colspan="1" pageId="0" pageNumber="115" rowspan="1">nearly asymmetrical</td>
|
|
</tr>
|
|
<tr id="67608A4FB511628591329351C0543409" pageId="0" pageNumber="115">
|
|
<td id="467CBEB00B9F0975E6E2BF4C06B42DF4" colspan="1" pageId="0" pageNumber="115" rowspan="1">Maxilla 1 palp article 2</td>
|
|
<td id="1568AB9F1309801CC9404D32A1ACB53E" colspan="1" pageId="0" pageNumber="115" rowspan="1">expanded</td>
|
|
<td id="5D190FAA5CB84A64DAFDD4AB028C9B49" colspan="1" pageId="0" pageNumber="115" rowspan="1">expanded</td>
|
|
<td id="25B6D1C93270121D02D6DEE3B8091D39" colspan="1" pageId="0" pageNumber="115" rowspan="1">expanded</td>
|
|
<td id="A8F8ABA356114A2048304534EF158BAD" colspan="1" pageId="0" pageNumber="115" rowspan="1">expanded</td>
|
|
<td id="EDBC1F068CFDCC8443868DDEDBAFC281" colspan="1" pageId="0" pageNumber="115" rowspan="1">not expanded</td>
|
|
</tr>
|
|
<tr id="8EDAD0D7712ECCDD3B568334CB7708C7" pageId="0" pageNumber="115">
|
|
<td id="6684AA066B5DC7E0B178ABD860EF055E" colspan="1" pageId="0" pageNumber="115" rowspan="1">Maxilla 1 palp article 2</td>
|
|
<td id="F6BCED2E0AD33204F804BCF19BB4D0E7" colspan="1" pageId="0" pageNumber="115" rowspan="1">9 apical robust setae</td>
|
|
<td id="2EA6C60328BB86E560349978DF0ED203" colspan="1" pageId="0" pageNumber="115" rowspan="1">less than 14 apical robust setae</td>
|
|
<td id="9BC5B5B866140386B8EEF3FA1DB9FD0F" colspan="1" pageId="0" pageNumber="115" rowspan="1">25 apical robust setae</td>
|
|
<td id="2D6AA5EB9C96C5C01DDC327DAEB444C6" colspan="1" pageId="0" pageNumber="115" rowspan="1">approx. 10 apical robust setae</td>
|
|
<td id="6FE259D2CC3143708B3BC65A1478858C" colspan="1" pageId="0" pageNumber="115" rowspan="1">7 apical robust setae</td>
|
|
</tr>
|
|
<tr id="8C256BB6E7EC0C3645D8C4402CF4F949" pageId="0" pageNumber="115">
|
|
<td id="681E02ECA65190D1E9CE2AAFD61A4E05" colspan="1" pageId="0" pageNumber="115" rowspan="1">Maxilla 1 inner plate</td>
|
|
<td id="FAC7F4E222B73B7EDE01EF9F0FEBCDBA" colspan="1" pageId="0" pageNumber="115" rowspan="1">1 plumose seta</td>
|
|
<td id="46AB11F1AE047CD0FD81A0250A47A215" colspan="1" pageId="0" pageNumber="115" rowspan="1">1 plumose seta</td>
|
|
<td id="749BF506A6C190E8832F174859EE2308" colspan="1" pageId="0" pageNumber="115" rowspan="1">1 plumose seta</td>
|
|
<td id="3799CB5591A3A919A75C9355C57C4B6E" colspan="1" pageId="0" pageNumber="115" rowspan="1">6 plumose setae</td>
|
|
<td id="FA422F9DF4CDD642EA4B3B6CB84CE329" colspan="1" pageId="0" pageNumber="115" rowspan="1">1 plumose seta</td>
|
|
</tr>
|
|
<tr id="554C62CAA9828880B9B6F90A6E7EAA75" pageId="0" pageNumber="115">
|
|
<td id="F5D8E1E2710CB8FEFACD63D35AA9D657" colspan="1" pageId="0" pageNumber="115" rowspan="1">Female antenna 1 primary flagellum article 1</td>
|
|
<td id="69A097949AF5DAF2054F5FE41AD77A69" colspan="1" pageId="0" pageNumber="115" rowspan="1">not elongated</td>
|
|
<td id="3E57ADDA73F48129C7ADF9578FE7105E" colspan="1" pageId="0" pageNumber="115" rowspan="1">not elongated</td>
|
|
<td id="80BB528106243DA11F5DF9E74F6E2A0E" colspan="1" pageId="0" pageNumber="115" rowspan="1">elongated</td>
|
|
<td id="EF2597836C5AA116EBCBAFBDB5A97EE1" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
<td id="22A1F68D9BBD687D058F5EE75231F1DA" colspan="1" pageId="0" pageNumber="115" rowspan="1">elongated</td>
|
|
</tr>
|
|
<tr id="88DDE5210FF0D6D90ECFE0FA4764E1AF" pageId="0" pageNumber="115">
|
|
<td id="4870551E3773F1E8050108DF79D110A5" colspan="1" pageId="0" pageNumber="115" rowspan="1">Female antenna 1 accessory flagellum article 1</td>
|
|
<td id="104BF3B2D70CD88197707AD61A07B616" colspan="1" pageId="0" pageNumber="115" rowspan="1">longer than each of the rest</td>
|
|
<td id="625776EDDC54B1B88927CB232898D7E1" colspan="1" pageId="0" pageNumber="115" rowspan="1">equal to length of remaining articles</td>
|
|
<td id="2094508740C8C414D03EDFF61139DE34" colspan="1" pageId="0" pageNumber="115" rowspan="1">longer than each of the rest</td>
|
|
<td id="0339AA8FAFEF1C71B7A5C5805F487052" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
<td id="25A1A9029C74CC5503D75D49DB260D5D" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
</tr>
|
|
<tr id="071289A451522FD1FE299436151E804B" pageId="0" pageNumber="115">
|
|
<td id="33AC6173555FDB47559314D67FE54273" colspan="1" pageId="0" pageNumber="115" rowspan="1">Gnathopods 1 and 2 dactyli</td>
|
|
<td id="48FDE5A928DDC992F728BDE0C1D51C71" colspan="1" pageId="0" pageNumber="115" rowspan="1">3 strong projections near the base</td>
|
|
<td id="3112E41DFDED237B5BA17EF9D16FD94B" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
<td id="3E03CD6D8DE5817A4A9DA038C6D1AC01" colspan="1" pageId="0" pageNumber="115" rowspan="1">8-9 strong projections near the base</td>
|
|
<td id="474EF95D970CD91DBF9CE2F3092AFC15" colspan="1" pageId="0" pageNumber="115" rowspan="1">4 strong projections near the base</td>
|
|
<td id="09891C2DDF2B5FAA6FB45CC4A451A998" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown (absent?)</td>
|
|
</tr>
|
|
<tr id="D02CB9FAD0F28BC66A9467EB200C7DCB" pageId="0" pageNumber="115">
|
|
<td id="E0864350EB2D08367469866127B8697F" colspan="1" pageId="0" pageNumber="115" rowspan="1">Coxa 5 dorsal margin</td>
|
|
<td id="342CEC904238DA1301889F50AE4A669A" colspan="1" pageId="0" pageNumber="115" rowspan="1">highest at proximal end</td>
|
|
<td id="D05A3FCA454234F8302290BEFFEC4E82" colspan="1" pageId="0" pageNumber="115" rowspan="1">highest at proximal end</td>
|
|
<td id="6F23DF28D23F7801B752A99E5FA3BB5A" colspan="1" pageId="0" pageNumber="115" rowspan="1">straight</td>
|
|
<td id="3E6BEC21649596B0863742A864C81640" colspan="1" pageId="0" pageNumber="115" rowspan="1">convex</td>
|
|
<td id="30030DEFD3F5C108B9105685493B4905" colspan="1" pageId="0" pageNumber="115" rowspan="1">straight / convex</td>
|
|
</tr>
|
|
<tr id="B565201AA9E776669D6CAC51BEA12608" pageId="0" pageNumber="115">
|
|
<td id="C8E1280E8DE54F02B9F7E177AE0C7D32" colspan="1" pageId="0" pageNumber="115" rowspan="1">Coxa 5 distal margin</td>
|
|
<td id="D53F4F03A92FB00B316762657AE10136" colspan="1" pageId="0" pageNumber="115" rowspan="1">rounded</td>
|
|
<td id="642B43B22C9C4ECE63A02B9AFEE79495" colspan="1" pageId="0" pageNumber="115" rowspan="1">rounded</td>
|
|
<td id="7AE595A8540DDF636311FF137AB55212" colspan="1" pageId="0" pageNumber="115" rowspan="1">rounded</td>
|
|
<td id="340F52295C668BBEAFCA941B230EA882" colspan="1" pageId="0" pageNumber="115" rowspan="1">slightly pointed</td>
|
|
<td id="749C68EAE20CD833ACF329F3C8CB2E38" colspan="1" pageId="0" pageNumber="115" rowspan="1">straight</td>
|
|
</tr>
|
|
<tr id="911F252E075F6AC07086CFEA56616473" pageId="0" pageNumber="115">
|
|
<td id="581F55F593B9C2AEE080A7CF832E7F83" colspan="1" pageId="0" pageNumber="115" rowspan="1">Coxa 7 ventral margin</td>
|
|
<td id="3D1D9652F4D04E588BE661D52A196C99" colspan="1" pageId="0" pageNumber="115" rowspan="1">shallowly concave</td>
|
|
<td id="4F688520AD96753051593354262ABA76" colspan="1" pageId="0" pageNumber="115" rowspan="1">straight</td>
|
|
<td id="3F06A19146EC1C51B01494087522BE64" colspan="1" pageId="0" pageNumber="115" rowspan="1">slightly concave</td>
|
|
<td id="F132F07147D3E42E93821FA6A54D4B32" colspan="1" pageId="0" pageNumber="115" rowspan="1">slightly concave</td>
|
|
<td id="0D4B840013D6DE3784E213F640FF941E" colspan="1" pageId="0" pageNumber="115" rowspan="1">straight</td>
|
|
</tr>
|
|
<tr id="7A2B7EC1CFEAC17A718A05D2FF7A61E9" pageId="0" pageNumber="115">
|
|
<td id="FB3F2FAA9703B59C9FCF919E0044947D" colspan="1" pageId="0" pageNumber="115" rowspan="1">Telson lobe</td>
|
|
<td id="FBDF74865904A3BEFFA8FE313B0B07D9" colspan="1" pageId="0" pageNumber="115" rowspan="1">uniformly tapering distally</td>
|
|
<td id="1EB9A588B7EA9D13BF7D033B9BAD5740" colspan="1" pageId="0" pageNumber="115" rowspan="1">uniformly tapering distally</td>
|
|
<td id="5651EB4318364F46F0CE269FF70EA5C8" colspan="1" pageId="0" pageNumber="115" rowspan="1">tapering from distal 1/3</td>
|
|
<td id="22E906A4E30DAEFC139B6E5122B987D2" colspan="1" pageId="0" pageNumber="115" rowspan="1">weakly tapering distally</td>
|
|
<td id="11504096A991F90492AE76A5FE8F6507" colspan="1" pageId="0" pageNumber="115" rowspan="1">unknown</td>
|
|
</tr>
|
|
<tr id="BD686D5F7255EB0A964657292CE92EE7" pageId="0" pageNumber="115">
|
|
<td id="6A76ADF4FB0B9CDE15B3227A8B0013F7" colspan="1" pageId="0" pageNumber="115" rowspan="1">References</td>
|
|
<td id="BA6FDFD121BCB398BBDF37A23886EC2A" colspan="1" pageId="0" pageNumber="115" rowspan="1">This study</td>
|
|
<td id="2CE679FDFA32C03F05EC0DF322AA7713" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<bibRefCitation id="D54EEC5E4D567BB3FE4A9E74940728E6" author="Dahl, E" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="115" refId="B4" refString="Dahl, E, 1959. Amphipoda from depth exceeding 6000 meters. In: Galathea Report: Scientific Results of the Danish Deep-Sea Expedition Round the World 1950-1952 (Vol. 1). Danish Science Press, Copenhagen, 211-241." title="Amphipoda from depth exceeding 6000 meters. In: Galathea Report: Scientific Results of the Danish Deep-Sea Expedition Round the World 1950 - 1952 (Vol. 1). Danish Science Press, Copenhagen, 211 - 241." year="1959">Dahl (1959)</bibRefCitation>
|
|
</td>
|
|
<td id="27B2747E61BE39ED19F2104F40372F7B" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<bibRefCitation id="D210C161F5A25EF808B3D7CF9EFE8CB4" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="CFD1DC15A10D1A7A8EF54675E06FA999" originalValue="Lörz">Loerz</normalizedToken>
|
|
(2010)
|
|
</bibRefCitation>
|
|
; this study
|
|
</td>
|
|
<td id="5801AE1243EED81EBCBA09EB3051A00B" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<bibRefCitation id="8D58D103C7389C2C88B8405F6FA63D30" author="Kamenskaya, OE" journalOrPublisher="Akademia Nauk SSSR" pageId="0" pageNumber="115" pagination="105 - 114" refId="B9" refString="Kamenskaya, OE, 1977. Two new species of ultraabyssal amphipods from Yap Trench. Akademia Nauk SSSR 108: 105 - 114" title="Two new species of ultraabyssal amphipods from Yap Trench." volume="108" year="1977">Kamenskaya (1977)</bibRefCitation>
|
|
</td>
|
|
<td id="1BE09C692EC0FDD8F75E0CD9D25579EA" colspan="1" pageId="0" pageNumber="115" rowspan="1">
|
|
<bibRefCitation id="F76B522FA2C92B99EA0BA3B829FBB1B1" author="Dahl, E" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="115" refId="B4" refString="Dahl, E, 1959. Amphipoda from depth exceeding 6000 meters. In: Galathea Report: Scientific Results of the Danish Deep-Sea Expedition Round the World 1950-1952 (Vol. 1). Danish Science Press, Copenhagen, 211-241." title="Amphipoda from depth exceeding 6000 meters. In: Galathea Report: Scientific Results of the Danish Deep-Sea Expedition Round the World 1950 - 1952 (Vol. 1). Danish Science Press, Copenhagen, 211 - 241." year="1959">Dahl (1959)</bibRefCitation>
|
|
;
|
|
<bibRefCitation id="02CB1C2D06F6908D9FDD195C2917D9AA" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="9C852542160DBEE57B5FDEAF3B59046C" originalValue="Lörz">Loerz</normalizedToken>
|
|
(2010)
|
|
</bibRefCitation>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</paragraph>
|
|
<paragraph id="2F772FB2626DEA32818F471E956A2405" pageId="0" pageNumber="115">
|
|
<taxonomicName id="3406367AD9511279ECDD81BCBE18E72E" authorityName="Lorz" authorityYear="2010" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia jamiesoni" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="species" species="jamiesoni">
|
|
<emphasis id="10EA019AF6F6CF07F1CA2F46E8BC1DE0" italics="true" pageId="0" pageNumber="115">Princaxelia jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
<normalizedToken id="1369CEF269DD84283D6F4D18964AC3F5" originalValue="Lörz">Loerz</normalizedToken>
|
|
, 2010 was described from 7,703 m and 9,316 m in the Japan and Izu-Ogasawara trenches, respectively (
|
|
<bibRefCitation id="991335D970167B415DF776D8D07FBA6E" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="3F2C11B650D37336FC3997422AB66C7C" originalValue="Lörz">Loerz</normalizedToken>
|
|
2010
|
|
</bibRefCitation>
|
|
), and subsequently from 7,055-9,583 m in the Kurile-Kamchatka Trench (
|
|
<bibRefCitation id="18DBF5AED5065BAD354E29A38FEB04B2" DOI="https://doi.org/10.1016/j.pocean.2019.102184" author="Jazdzewska, AM" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="115" refId="B8" refString="Jazdzewska, AM, Mamos, T, 2019. High species richness of Northwest Pacific deep-sea amphipods revealed through DNA barcoding. Progress in Oceanography 178: e102184. https://doi.org/10.1016/j.pocean.2019.102184" title="High species richness of Northwest Pacific deep-sea amphipods revealed through DNA barcoding. Progress in Oceanography 178: e 102184." url="https://doi.org/10.1016/j.pocean.2019.102184" year="2019">
|
|
<normalizedToken id="71E3905005FA60E3809F185B1E02FC80" originalValue="Jażdżewska">Jazdzewska</normalizedToken>
|
|
and Mamos 2019
|
|
</bibRefCitation>
|
|
). Examination of the holotype of
|
|
<taxonomicName id="940ADAD18EF87A40178007E6BA609813" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="69BD78D1298C28F3B8D8BABEEF3EBECF" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
reveals new features not originally described which facilitate differentiation of this species from
|
|
<taxonomicName id="F7CF55DD70DF286C9C9E0080F379ED1F" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="9D41381258F03260E814BE8417243BA4" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov.: the palp article 2 of the maxilla 1 bears eight or nine robust apical setae in
|
|
<taxonomicName id="735FB7B44870618A6885DECF9CF7D7C2" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="ABC205CBF1FC43EC584598B40728A6A5" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. but 25 robust apical setae in
|
|
<taxonomicName id="1F5649197D66836D3034E27C327B01BB" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="E22C0C683672750E7F84AA1F90178811" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
(Fig.
|
|
<figureCitation id="39F6C160E1558C65BED75A637339B083" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5G</figureCitation>
|
|
); the dactylus of gnathopods 1 and 2 has three strong projections proximal to its base in
|
|
<taxonomicName id="1E627AE9C6497CD14CE89CCA180425F3" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="F88DE744153FCBEF7C79F96B7E036F42" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov., but eight or nine strong projections proximal to the base of the dactylus in
|
|
<taxonomicName id="447FF632F67BFC75FE088991EF3ABA7B" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="E32C4B22565827059396F92112AADC41" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
(Fig.
|
|
<figureCitation id="FAAA199700036DCC7FEB3121AC5D9A7E" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5H, I</figureCitation>
|
|
); and the telson lobe uniformly tapers distally in
|
|
<taxonomicName id="2E9608FF5028E899D1A96C5D91075635" lsidName="P. marianaensis" pageId="0" pageNumber="115" rank="species" species="marianaensis">
|
|
<emphasis id="59817A5115C932449AB43392F32B316C" italics="true" pageId="0" pageNumber="115">P. marianaensis</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. but tapers from the distal 1/3 in
|
|
<taxonomicName id="4E382A2D0C4EEE506C1513542C5967E3" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="04D64E603D0E8A5A8FF2FD721DB9E192" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
(Fig.
|
|
<figureCitation id="4DE057EED81C701192EDD19DF9480A31" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Princaxelia marianaensis Tomikawa & Watanabe, sp. nov., holotype female (BL 23.9 mm) A pleopod 1, anterior view, some setae on rami omitted B retinacula on peduncle of pleopod 1, anterior view C bifid (clothespin) plumose seta on inner basal margin of inner ramus of pleopod 1, anterior view D uropod 1, dorsal view, distal part of outer ramus broken E uropod 2, dorsal view F telson, dorsal view. Princaxelia jamiesoni Loerz, 2010, holotype female (BL 56.2 mm) G palp of maxilla 1, dorsal view H dactylus of gnathopod 1, lateral view I dactylus of gnathopod 2, medial view J telson, dorsal view." figureDoi="10.3897/zookeys.1015.59683.figure5" httpUri="https://binary.pensoft.net/fig/505321" pageId="0" pageNumber="115">5J</figureCitation>
|
|
). While two projections on the dactylus of the left gnathopod 2 were originally described for
|
|
<taxonomicName id="AE4A38AD4001BD488FEAF7C6B0195BCE" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="1108546B6EB67331349FCC60393E5EA4" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
, we report nine projections on the right gnathopod 2 of the holotype; we believe that
|
|
<bibRefCitation id="792487737E114191624032BEED940808" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="95D1E5C9FF50537536A5BA2D38125227" originalValue="Lörz">Loerz</normalizedToken>
|
|
(2010)
|
|
</bibRefCitation>
|
|
described the damaged left gnathopod 2.
|
|
</paragraph>
|
|
<paragraph id="E577EDCFAF3551CEE6168E9DCE09730F" pageId="0" pageNumber="115">
|
|
The morphology of
|
|
<taxonomicName id="790A8C0FEEE02CDCB1FD502DCC436DEF" authorityName="Dahl" authorityYear="1959" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="genus">
|
|
<emphasis id="9584244C624F012C1E83620B9DF89001" italics="true" pageId="0" pageNumber="115">Princaxelia</emphasis>
|
|
</taxonomicName>
|
|
is consistent with an animal that swims in that its body is streamlined, flat, and has well-developed pleopods (
|
|
<bibRefCitation id="93115F571705AA8A4DAD7D299E7E3C72" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="E80D368C2AAB29185C6B5690CCF2EA22" originalValue="Lörz">Loerz</normalizedToken>
|
|
2010
|
|
</bibRefCitation>
|
|
). Analyses of the locomotion of
|
|
<taxonomicName id="2B4204926D4840B0C25FB7F78FB797F1" authorityName="Dahl" authorityYear="1959" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="genus">
|
|
<emphasis id="82B153D8838FE51EB965DF40CBC16C6B" italics="true" pageId="0" pageNumber="115">Princaxelia</emphasis>
|
|
</taxonomicName>
|
|
species demonstrate they have a high swimming ability - a trait useful for preying on other amphipods in hadal trenches (
|
|
<bibRefCitation id="A1219359A342ECFC69DFD638CFB98152" DOI="https://doi.org/10.1017/S0025315411000452" author="Jamieson, AJ" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="115" pagination="143 - 150" refId="B7" refString="Jamieson, AJ, Loerz, AN, Fujii, T, Priede, IG, 2012. In situ observations of trophic behavior and locomotion of Princaxelia amphipods (Crustacea: Pardaliscidae) at hadal depths in four West Pacific Trenches. Journal of the Marine Biological Association of the United Kingdom 92: 143 - 150, DOI: https://doi.org/10.1017/S0025315411000452" title="In situ observations of trophic behavior and locomotion of Princaxelia amphipods (Crustacea: Pardaliscidae) at hadal depths in four West Pacific Trenches." url="https://doi.org/10.1017/S0025315411000452" volume="92" year="2012">Jamieson et al. 2012</bibRefCitation>
|
|
). Amphipods lack a planktonic larval stage and generally have low dispersal ability (
|
|
<bibRefCitation id="33A9A3011145A9FF398647666646E90B" author="Chapman, JW" editor="Carlton, JT" journalOrPublisher="). University of California Press, Berkeley" pageId="0" pageNumber="115" pagination="545 - 618" refId="B2" refString="Chapman, JW, 2007. Gammaridea. In: Carlton, JT, Ed., The Light and Smith manual: Intertidal Invertebrates from Central California to Oregon (4th edn.). University of California Press, Berkeley: 545 - 618" title="Gammaridea." volumeTitle="The Light and Smith manual: Intertidal Invertebrates from Central California to Oregon (4 th edn." year="2007">Chapman 2007</bibRefCitation>
|
|
). Judging from known habitat depths of
|
|
<taxonomicName id="C64F79AABAC237D89028C5F8A06332C0" authorityName="Dahl" authorityYear="1959" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="genus">
|
|
<emphasis id="58F17E776E8F3547CBEA511C0D2E6815" italics="true" pageId="0" pageNumber="115">Princaxelia</emphasis>
|
|
</taxonomicName>
|
|
, with the exception of the bathypelagic
|
|
<taxonomicName id="838AF22DA6B168F6163BF362D92C7DA7" lsidName="P. stephenseni" pageId="0" pageNumber="115" rank="species" species="stephenseni">
|
|
<emphasis id="4C47E5A4205E9F1544B976C1E39B1241" italics="true" pageId="0" pageNumber="115">P. stephenseni</emphasis>
|
|
</taxonomicName>
|
|
, the distributions of species might be expected to be restricted to individual trenches. However,
|
|
<taxonomicName id="452E869F39BAC636399303206B8C5017" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="FC0CA1A3F38DDD648E41DAA7147A9FD9" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
, and especially
|
|
<taxonomicName id="ACF858BE7A2CABFCB5BBEEE229810A6A" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="8328B02BF067FFBD6279A4E210F9DC42" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
, are reported from multiple trenches (Fig.
|
|
<figureCitation id="0480A7F1297A4BD04F8258100A470CC0" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Geographical distributions of the species of Princaxelia (map data from GEBCO Compilation Group [2020]). The exact location of the distribution of P. abyssalis in the Aleutian Trench is uncertain." figureDoi="10.3897/zookeys.1015.59683.figure6" httpUri="https://binary.pensoft.net/fig/505322" pageId="0" pageNumber="115">6</figureCitation>
|
|
) (
|
|
<bibRefCitation id="88422BF9DC4D670A45F42609F48B07AE" author="Kamenskaya, OE" journalOrPublisher="Trudy Instituta Okeanologii" pageId="0" pageNumber="115" pagination="94 - 107" refId="B10" refString="Kamenskaya, OE, 1981. The amphipods (Crustacea) from deep-sea trenches in the western part of the Pacific Ocean. Trudy Instituta Okeanologii 115: 94 - 107" title="The amphipods (Crustacea) from deep-sea trenches in the western part of the Pacific Ocean." volume="115" year="1981">Kamenskaya 1981</bibRefCitation>
|
|
,
|
|
<bibRefCitation id="BD497A469BDB6FA94416521ED5CDDB10" author="Kamenskaya, OE" journalOrPublisher="Trudy Instituta Okeanologii" pageId="0" pageNumber="115" refId="B11" refString="Kamenskaya, OE, 1997. Peculiarities of the vertical distribution of the amphipods in the region of the Kuril-Kamchatka Trench. Russian Academy of Sciences, P.P. Shirshov Institute of Oceanology, Moscow, 141-168. [in Russian]" title="Peculiarities of the vertical distribution of the amphipods in the region of the Kuril-Kamchatka Trench. Russian Academy of Sciences, P. P. Shirshov Institute of Oceanology, Moscow, 141 - 168. [in Russian]" year="1997">1997</bibRefCitation>
|
|
;
|
|
<bibRefCitation id="3D3B852D7B7BF5EF037687F94E2E79C3" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="03624E000B8FF97B1FB4A0FE1DA2858D" originalValue="Lörz">Loerz</normalizedToken>
|
|
2010
|
|
</bibRefCitation>
|
|
;
|
|
<bibRefCitation id="24BE9078FD6BCC3F6AE72D078167DA9D" DOI="https://doi.org/10.1016/j.pocean.2019.102184" author="Jazdzewska, AM" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="115" refId="B8" refString="Jazdzewska, AM, Mamos, T, 2019. High species richness of Northwest Pacific deep-sea amphipods revealed through DNA barcoding. Progress in Oceanography 178: e102184. https://doi.org/10.1016/j.pocean.2019.102184" title="High species richness of Northwest Pacific deep-sea amphipods revealed through DNA barcoding. Progress in Oceanography 178: e 102184." url="https://doi.org/10.1016/j.pocean.2019.102184" year="2019">
|
|
<normalizedToken id="E0F1C0690399E52CDE288A1E3935C060" originalValue="Jażdżewska">Jazdzewska</normalizedToken>
|
|
and Mamos 2019
|
|
</bibRefCitation>
|
|
). Deep-sea amphipod species previously regarded as widely distributed have since been found to contain cryptic species (e.g.,
|
|
<bibRefCitation id="18F783C89E8ABC3F71DE086DBE73706B" DOI="https://doi.org/10.1007/s12526-017-0758-4" author="Narahara-Nakano, Y" journalOrPublisher="Marine Biodiversity" pageId="0" pageNumber="115" pagination="603 - 620" refId="B13" refString="Narahara-Nakano, Y, Nakano, T, Tomikawa, K, 2018. Deep-sea amphipod genus Eurythenes from Japan, with a description of a new Eurythenes species from off Hokkaido (Crustacea: Amphipoda: Lysianassoidea). Marine Biodiversity 48: 603 - 620, DOI: https://doi.org/10.1007/s12526-017-0758-4" title="Deep-sea amphipod genus Eurythenes from Japan, with a description of a new Eurythenes species from off Hokkaido (Crustacea: Amphipoda: Lysianassoidea)." url="https://doi.org/10.1007/s12526-017-0758-4" volume="48" year="2018">Narahara-Nakano et al. 2018</bibRefCitation>
|
|
).
|
|
<bibRefCitation id="0495731B6F8C1D1E86200F3A0B5A253B" author="Loerz, AN" journalOrPublisher="Zoologica Baetica" pageId="0" pageNumber="115" pagination="65 - 84" refId="B12" refString="Loerz, AN, 2010. Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda). Zoologica Baetica 21: 65 - 84" title="Trench treasures: the genus Princaxelia (Pardaliscidae, Amphipoda)." volume="21" year="2010">
|
|
<normalizedToken id="DB4EFF09E853058A57BAA97594BE667A" originalValue="Lörz">Loerz</normalizedToken>
|
|
(2010)
|
|
</bibRefCitation>
|
|
also considered that
|
|
<taxonomicName id="F6565E554B0EDBAFB44CD13562E63D57" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="D2D462450E4DD27658F6A3BF375907B2" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
, as reported from multiple trenches by
|
|
<bibRefCitation id="F2BA15E07C11D692B869FEE18F19CD4B" author="Kamenskaya, OE" journalOrPublisher="Trudy Instituta Okeanologii" pageId="0" pageNumber="115" pagination="94 - 107" refId="B10" refString="Kamenskaya, OE, 1981. The amphipods (Crustacea) from deep-sea trenches in the western part of the Pacific Ocean. Trudy Instituta Okeanologii 115: 94 - 107" title="The amphipods (Crustacea) from deep-sea trenches in the western part of the Pacific Ocean." volume="115" year="1981">Kamenskaya (1981)</bibRefCitation>
|
|
, may contain other or undescribed species. It is possible that
|
|
<taxonomicName id="E9BC072614D35619C9A26D72024CC181" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="B293B869BA80A0DB1516FE03879965DB" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="52F69D50099347F570D56CCC2B055550" lsidName="P. jamiesoni" pageId="0" pageNumber="115" rank="species" species="jamiesoni">
|
|
<emphasis id="BF9F862B9B3FFBA57D1569391A542AAE" italics="true" pageId="0" pageNumber="115">P. jamiesoni</emphasis>
|
|
</taxonomicName>
|
|
represent species complexes, but a greater understanding of species diversity of this hadal-dwelling genus will require additional genetic and morphological analyses.
|
|
</paragraph>
|
|
<caption id="2B819F47238ABA07773FBF1AFB23CD67" doi="10.3897/zookeys.1015.59683.figure6" httpUri="https://binary.pensoft.net/fig/505322" pageId="0" pageNumber="115" start="Figure 6" startId="F6">
|
|
<paragraph id="838FC6E5D74A63289C2D8E5D62A77525" pageId="0" pageNumber="115">
|
|
<emphasis id="177B09EDFDC9C5D7C54C06E78C1EBE75" bold="true" pageId="0" pageNumber="115">Figure 6.</emphasis>
|
|
Geographical distributions of the species of
|
|
<taxonomicName id="846B31FB7B3434CEB903D11674952F92" authorityName="Dahl" authorityYear="1959" class="Malacostraca" family="Pardaliscidae" genus="Princaxelia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Princaxelia" order="Amphipoda" pageId="0" pageNumber="115" phylum="Arthropoda" rank="genus">
|
|
<emphasis id="9CCF7E69B0D5329AA454A586554FD233" italics="true" pageId="0" pageNumber="115">Princaxelia</emphasis>
|
|
</taxonomicName>
|
|
(map data from
|
|
<bibRefCitation id="C32208A4776B92D96CD0A482890773CE" DOI="https://doi.org/10.5285/a29c5465-b138-234d-e053-6c86abc040b9" author="GEBCO Compilation Group" journalOrPublisher="Molecular Marine Biology and Biotechnology" pageId="0" pageNumber="115" refId="B6" refString="GEBCO Compilation Group, 2020. GEBCO 2020 Grid - a continuous terrain model of the global oceans and land. British Oceanographic Data Centre, National Oceanography Centre, NERC. https://doi.org/10.5285/a29c5465-b138-234d-e053-6c86abc040b9" title="GEBCO 2020 Grid - a continuous terrain model of the global oceans and land. British Oceanographic Data Centre, National Oceanography Centre, NERC." url="https://doi.org/10.5285/a29c5465-b138-234d-e053-6c86abc040b9" year="2020">GEBCO Compilation Group [2020]</bibRefCitation>
|
|
). The exact location of the distribution of
|
|
<taxonomicName id="553920265342F45924A5788E4550347D" lsidName="P. abyssalis" pageId="0" pageNumber="115" rank="species" species="abyssalis">
|
|
<emphasis id="DB50409AA84AC61407D8A90489A3576A" italics="true" pageId="0" pageNumber="115">P. abyssalis</emphasis>
|
|
</taxonomicName>
|
|
in the Aleutian Trench is uncertain.
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |