133 lines
16 KiB
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133 lines
16 KiB
XML
<document id="EAA5144A9CB4E871E733389C24C746BC" ID-CLB-Dataset="30948" ID-DOI="http://dx.doi.org/10.3897/zookeys.731.19899" ID-GBIF-Dataset="bf7f2f4a-3633-49de-8c02-c0c99062e9d6" ID-PMC="PMC5799792" ID-Pensoft-Pub="1313-2970-731-103" ID-PubMed="29416401" ID-ZooBank="99D6C6419FAF4BF9A8A052312333DEA0" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1313-2970-731-103" ModsDocOrigin="ZooKeys 731" ModsDocTitle="On a new species of Amphilochus from deep and cold Atlantic waters, with a note on the genus Amphilochopsis (Amphipoda, Gammaridea, Amphilochidae)" checkinTime="1516733742620" checkinUser="pensoft" docAuthor="Tandberg, Anne Helene S. & Vader, Wim" docDate="2018" docId="7A22FFEEAEF50C79A662A50F394E58BE" docLanguage="en" docName="ZooKeys 731: 103-134" docOrigin="ZooKeys 731" docSource="http://dx.doi.org/10.3897/zookeys.731.19899" docTitle="Amphilochus hamatus Stephensen 1925, comb. n." docType="treatment" docVersion="6" lastPageNumber="115" masterDocId="FFF4FFA9F7750548F106FF977942FFD1" masterDocTitle="On a new species of Amphilochus from deep and cold Atlantic waters, with a note on the genus Amphilochopsis (Amphipoda, Gammaridea, Amphilochidae)" masterLastPageNumber="134" masterPageNumber="103" pageNumber="111" updateTime="1701378367476" updateUser="ExternalLinkService">
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<mods:title id="47F7C02E7B917F33BD48AD9BA85AB754">On a new species of Amphilochus from deep and cold Atlantic waters, with a note on the genus Amphilochopsis (Amphipoda, Gammaridea, Amphilochidae)</mods:title>
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<mods:namePart id="9641FAF5C84CF946F11DD73030D9398D">Tandberg, Anne Helene S.</mods:namePart>
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<mods:namePart id="D76603B699BBDA7301B7EFCC5AB67B00">Vader, Wim</mods:namePart>
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<mods:typeOfResource id="41B8FD0B0D5FB8FBB0BB88118BB4EC40">text</mods:typeOfResource>
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<mods:title id="85A87A6976281EA7B650CFD190CEA75F">ZooKeys</mods:title>
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<mods:date id="EB99E27531C5642CB413C7FF8510B616">2018</mods:date>
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<mods:detail id="838CDC9F31912F5CDD5D19169696CFB0" type="volume">
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<mods:number id="5ADA1C7DFEAFE31C5A486B696DBF9C50">731</mods:number>
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<mods:start id="D2070DFA6BEA2F4AA305849B8D98BCD2">103</mods:start>
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<mods:classification id="771D2F7FDF840CE0A1D7BE7FD0A2AE79">journal article</mods:classification>
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<mods:identifier id="3D1F52FF4D553B787C8CB4C226E8653A" type="DOI">http://dx.doi.org/10.3897/zookeys.731.19899</mods:identifier>
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<mods:identifier id="75422481AE7E2544BF8439637A242307" type="Pensoft-Pub">1313-2970-731-103</mods:identifier>
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</mods:mods>
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<treatment id="7A22FFEEAEF50C79A662A50F394E58BE" ID-GBIF-Taxon="140417382" LSID="urn:lsid:plazi:treatment:7A22FFEEAEF50C79A662A50F394E58BE" httpUri="http://treatment.plazi.org/id/7A22FFEEAEF50C79A662A50F394E58BE" lastPageId="12" lastPageNumber="115" pageId="8" pageNumber="111">
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<subSubSection id="9AE6AD4110867B85CDD343D64092AFA5" pageId="8" pageNumber="111" type="nomenclature">
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<paragraph id="E91862A914C485652F2608BF570A4AFE" pageId="8" pageNumber="111">
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<taxonomicName id="72D83B06C6E6FE6C7D221FBF38EEE9EA" ID-CoL="D3BT" authority="Stephensen, 1925" authorityName="Stephensen" authorityYear="1925" class="Malacostraca" family="Amphilochidae" genus="Amphilochus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphilochus hamatus" order="Amphipoda" pageId="8" pageNumber="111" phylum="Arthropoda" rank="species" species="hamatus">Amphilochus hamatus (Stephensen, 1925)</taxonomicName>
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<taxonomicNameLabel id="1DD9DB21884F5ABB3F972A5D69724949" pageId="8" pageNumber="111">comb. n.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="2341217BF58A672EF0B301F9EB747064" pageId="8" pageNumber="111" type="reference_group">
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<paragraph id="0B300422881A0A28725F0F2BBD6F6C5F" pageId="8" pageNumber="111">
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<taxonomicName id="9A6DAABAFDF7F1864EE011749EF5146A" class="Malacostraca" family="Amphilochidae" genus="Amphilochopsis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphilochopsis hamatus" order="Amphipoda" pageId="8" pageNumber="111" phylum="Arthropoda" rank="species" species="hamatus">Amphilochopsis hamatus</taxonomicName>
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Stephensen, 1925: 173, figs 52-53;
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<bibRefCitation id="9C7261489795FD431573CBEC42D406FB" author="Gurjanova, EF" journalOrPublisher="] Izdadelstvo Akademii Nauk SSSR" pageId="17" pageNumber="120" pagination="1 - 1031" title="[Amphipods of the USSR seas and adjacent waters (Amphipoda - Gammaridea)." volume="41" year="1951">Gurjanova 1951</bibRefCitation>
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: 402, fig. 246;
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<bibRefCitation id="14E23293413CFD4405118619E42B2EE7" author="Barnard, JL" journalOrPublisher="Records of the Australian Museum Supplement" pageId="16" pageNumber="119" pagination="1 - 417" title="The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Part 1." url="https://doi.org/10.3853/j.0812-7387.13.1991.91" volume="13" year="1991">Barnard and Karaman 1991</bibRefCitation>
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: 95.
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</paragraph>
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</subSubSection>
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<subSubSection id="3E063764E504E96D98B1A10CE405C90B" pageId="8" pageNumber="111" type="materials_examined">
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<paragraph id="E24068277C13D051EA0FBAD184ACBDD9" pageId="8" pageNumber="111">Material examined.</paragraph>
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<paragraph id="EC12CC3F5661E370C8AB4F894986F76F" pageId="8" pageNumber="111">Drawings are made from IINH37894 (BioIce 2077), IINH37898 (BioIce 2236), IINH37900 (BioIce 2318) and IINH37903 (BioIce 2367). Material from IceAGE and NorAmph has been used for molecular sequencing and comparisons. For a list of stations for the material, see Table 1. Type material not examined. The drawings are shown on Figs 9-12.</paragraph>
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</subSubSection>
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<subSubSection id="D251FB713207F642F87752D74E7C2F4F" lastPageId="12" lastPageNumber="115" pageId="8" pageNumber="111" type="description">
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<paragraph id="BE91069CFBFD05C9BD3B4725834EC315" pageId="8" pageNumber="111">Description.</paragraph>
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<paragraph id="62C344C77F4F15C247B1EFBDAFE67D56" lastPageId="9" lastPageNumber="112" pageId="8" pageNumber="111">
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Head. Rostrum curved, reaches tip of article 1, antenna 1. Eyes not evident, but an ill-defined eye-patch can be seen. Cephalic lobe produced distally and rounded. Antenna 1 shorter than antenna 2; second peduncle-article with a triangular
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<pageBreakToken id="B307C18787C0F060D94DFAB966977F87" pageId="9" pageNumber="112" start="start">production</pageBreakToken>
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on the apex the size of third peduncle article; peduncle subequal to ten-articulate flagellum; no accessory flagellum. Antenna 2 peduncle longer than flagellum; short setae on peduncle, and a pair of long setae at tip of flagellum.
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</paragraph>
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<paragraph id="F8B249B33CEA95A2B3C13FBD4950B9F9" lastPageId="10" lastPageNumber="113" pageId="9" pageNumber="112">
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Labrum asymmetrically bilobed. Mandible molar small but triturative, cone-shaped; incisor serrate; ten accessory spines; palp slender, 3-articulate with series of short setae on article 3, one long seta at tip; lacinia mobilis laterally expanded. Labium symmetric, with inner lobe reduced; sharp tooth making tip of outer lobe look dentate. Maxilla 1 palp 1-articulate, with a crown of two robust setae and a serrate distal margin; inner plate reduced, 1 seta; outer plate with four and eight heavy and five smaller setae. Maxilla 2 long and thin; inner plate shorter than outer plate; three heavy setae and eight smaller setae on outer plate; inner plate with seven short setae distally and
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<pageBreakToken id="F3885372BACB673D292C709346CB9EEC" pageId="10" pageNumber="113" start="start">one</pageBreakToken>
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to two thin setae medially. Maxilliped inner plate small and thin, well separated, just reaching past ischium; outer plate reaching mid-merus, two strong setae distally, serrations on inner margin; palp slim, heavily setulated on carpus and propodus.
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</paragraph>
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<paragraph id="FE2E3E952CCA5E146209588EB4A5FDB6" pageId="11" pageNumber="114">
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<pageBreakToken id="6AC7AA4FF02AD648ADC607CD6B7132FC" pageId="11" pageNumber="114" start="start">Mesosome</pageBreakToken>
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dorsally smooth; segment 3 shorter than segment 4. Coxa 1 reduced, subquadratic and covered by coxa 2, which is longer than broad. Coxa 2 distal margin smooth, no setae. Coxa 3 concave, smooth, with setae on distal margin. Coxa 4 distal margin smooth with setae. Coxa 5-7 concave.
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</paragraph>
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<paragraph id="8CCDDD3782FBBEDF7318874649BD1AFD" lastPageId="12" lastPageNumber="115" pageId="11" pageNumber="114">
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Pereopod 1 basis subequal to propodus length, upper half distally widened, three long setae posteriorly; carpal lobe 65% of propodus posterior margin; propodus subtriangular, palm oblique, serrate, no setae defining palmer corner, anterodistal tooth of medium size; dactylus with inner margin partly serrate. Pereopod 2 basis weakly longer than propodus, linear; merus with a clearly defined
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<normalizedToken id="820585505782B3B4EA0E7B3B83151EA9" originalValue="“hook”">"hook"</normalizedToken>
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on posterior side, close to carpus; carpal lobe 100% of propodus posterior margin, boat-shaped with a row of setae on margin; propodus subovate, palm oblique, defined mostly by its serration and upper third with small setae, no setae defining palmar corner, anterodistal tooth large (same size as breadth of the base of dactylus); dactylus inner margin with a row of small and strong setae, otherwise smooth. Pereopod 3 posterior margin of basis with
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<pageBreakToken id="251A7CA8447739FB14FCF2ABC30F72FA" pageId="12" pageNumber="115" start="start">an</pageBreakToken>
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even row of slender setae; merus with small lobe. Pereopod 4 basis with very thin setae. Pereopods 5 and 6 basis and merus with posterior lobes; dactylus longer than half-length propodus. Pereopod 7, basis and merus with posterior lobes.
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</paragraph>
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<paragraph id="252A106A4BD3FAA26173152A5FCB96A5" pageId="12" pageNumber="115">Metasome smooth. Epimeral plates rounded, no teeth. Urosome smooth; segment 1 long; segments 2 and 3 short. Uropod 1 peduncle subequal to rami; rami subequal; both peduncle and outer ramus with marginal setae. Uropod 2 peduncle subequal to inner ramus; outer ramus half-length of inner ramus; setation on peduncle and rami. Uropod 3 peduncle marginally longer than rami; outer ramus half-length of inner ramus; rami shorter than telson; setation on peduncle and rami. Gills on segments 2 to 6. Oostegites on segments 2 to 6. Telson elongate, longer than broad; distal end entire and tridentate, all lobes rounded; no setae.</paragraph>
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<caption id="FE890FBBDA89ED235EE9E5F1531CC6B2" pageId="12" pageNumber="115">
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<paragraph id="F37A749F2F14F7068D5D81938BC3656D" pageId="12" pageNumber="115">
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Figure 9.
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<taxonomicName id="1DD41291BD1CDB97F02C7D3EE4E5D671" class="Malacostraca" family="Amphilochidae" genus="Amphilochus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphilochus hamatus" order="Amphipoda" pageId="12" pageNumber="115" phylum="Arthropoda" rank="species" species="hamatus">Amphilochus hamatus</taxonomicName>
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. Habitus. IINH37900. Scale bar: 0.5 mm.
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</paragraph>
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</caption>
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<caption id="B2DF908A0B101BFA1D668FB30F8CD299" pageId="12" pageNumber="115">
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<paragraph id="BBE1EA50AF2AE24BDA83D5D4BE969094" pageId="12" pageNumber="115">
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Figure 10.
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<taxonomicName id="751E24AD4EFE772B1EE4AD0ACDCEF934" class="Malacostraca" family="Amphilochidae" genus="Amphilochus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphilochus hamatus" order="Amphipoda" pageId="12" pageNumber="115" phylum="Arthropoda" rank="species" species="hamatus">Amphilochus hamatus</taxonomicName>
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. Mouthparts. IINH37894. Scale bars: 0.1 mm.
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</paragraph>
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</caption>
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<caption id="C24F711BB0A264385D4E52ED952587F1" pageId="12" pageNumber="115">
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<paragraph id="7FD243B0F4AE40E7B7574D8833283840" pageId="12" pageNumber="115">
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Figure 11.
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<taxonomicName id="46619A87618CB6009CE9535D0FA2C643" class="Malacostraca" family="Amphilochidae" genus="Amphilochus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphilochus hamatus" order="Amphipoda" pageId="12" pageNumber="115" phylum="Arthropoda" rank="species" species="hamatus">Amphilochus hamatus</taxonomicName>
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. Pereopods 1 and 2, uropods. IINH37898 and IINH37903. Scale bars: 0.1 mm.
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</paragraph>
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</caption>
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<caption id="5C0D7A65B98BA0E23C37A2C77E623931" pageId="12" pageNumber="115">
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<paragraph id="98F0CE6CF9A7519B9CD0682200B9D945" pageId="12" pageNumber="115">
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Figure 12.
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<taxonomicName id="10CB68093064FF45FA40CD606BF53584" class="Malacostraca" family="Amphilochidae" genus="Amphilochus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphilochus hamatus" order="Amphipoda" pageId="12" pageNumber="115" phylum="Arthropoda" rank="species" species="hamatus">Amphilochus hamatus</taxonomicName>
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. Pereopod 3, epimeral plates, telson. IINH37898 and IINH37894. Scale bars: 0.1 mm.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="C5818D8022CA6A5DDD538C451B9C1C6D" pageId="12" pageNumber="115" type="distribution">
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<paragraph id="7687762F828980B8E0D2D139EB9E6D50" pageId="12" pageNumber="115">Distribution.</paragraph>
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<paragraph id="79A021162984014136A3A141C75D54C7" pageId="12" pageNumber="115">
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This species appears to have a wide depth range based on our collections (206 to 1407 m), although
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<bibRefCitation id="AA5C2C7D7E6B3C9DA712B2634AAEB09C" author="Stephensen, K" journalOrPublisher="The Danish Ingolf-Expedition" pageId="18" pageNumber="121" pagination="101 - 178" title="CrustaceaMalacostraca. VI. (Amphipoda. II.)." volume="3" year="1925">Stephensen (1925)</bibRefCitation>
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found it only in deep water (700 to 2702 m). The temperatures it has been found at range from -0.6 to +7.0 °C. It is also recorded from the deep Norwegian Sea (
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<bibRefCitation id="EC0554CE3CD4732037F1E84ACB380BF1" author="Dahl, E" journalOrPublisher="Sarsia" pageId="17" pageNumber="120" pagination="57 - 59" title="AmphipodaGammaridea from the deep Norwegian Sea. A preliminary report." url="https://doi.org/10.1080/00364827.1979.10411363" volume="64" year="1979">Dahl 1979</bibRefCitation>
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), the Arctic basin (
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<bibRefCitation id="B3211BD32ECF06A6E29AFD8B4C2AA9C1" author="Gurjanova, EF" journalOrPublisher="] Izdadelstvo Akademii Nauk SSSR" pageId="17" pageNumber="120" pagination="1 - 1031" title="[Amphipods of the USSR seas and adjacent waters (Amphipoda - Gammaridea)." volume="41" year="1951">Gurjanova 1951</bibRefCitation>
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), Greenland (
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<bibRefCitation id="3D33EB3CC3FF08F80A9E3EB709E46A6E" author="Brandt, A" journalOrPublisher="Meddelelser om Gronland Bioscience" pageId="16" pageNumber="119" pagination="1 - 30" title="The species composition of the Peracarid fauna (Crustacea, Malacostraca) of the Northeast Water Polynya (Greenland)." volume="44" year="1996">Brandt et al. 1996</bibRefCitation>
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) and the deep polar basin (
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<bibRefCitation id="6BA52F80CB1873C94A3474448297796B" author="Tzvetkova, NL" journalOrPublisher="Amphipoda, (Explorations of the seas)" pageId="18" pageNumber="121" pagination="79 - 94" title="List of species of free-living invertebrates of Eurasian Arctic Seas and adjacent deep water." volume="51" year="2001">Tzvetkova and Golikov 2001</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |