272 lines
36 KiB
XML
272 lines
36 KiB
XML
<document id="7B4775FF39524A713B40509025A0F0C3" ID-DOI="10.5281/zenodo.187535" ID-GBIF-Dataset="a8eef63b-5c08-4be8-915f-13a73a566e9c" ID-ISSN="1175-5326" ID-Zenodo-Dep="187535" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461072528233" checkinUser="plazi" docAuthor="Tandberg, Anne Helene S. & Vader, Wim" docDate="2009" docId="722F8B7C826B650862F1FC16FDDEB463" docLanguage="en" docName="zt02093p036.pdf" docOrigin="Zootaxa 2093" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Metopa abyssalis Stephensen 1931" docType="treatment" docVersion="9" lastPageNumber="33" masterDocId="8E16F304827365286266FFD2FFC4B66D" masterDocTitle="A redescription of Metopa species (Amphipoda, Stenothoidae) based on the type material. 1. Zoological Museum, Copenhagen (ZMUC)" masterLastPageNumber="36" masterPageNumber="1" pageNumber="25" updateTime="1698585057855" updateUser="plazi">
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<mods:title id="7F2FED607153613B2B6A8759482F16C9">A redescription of Metopa species (Amphipoda, Stenothoidae) based on the type material. 1. Zoological Museum, Copenhagen (ZMUC)</mods:title>
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<mods:namePart id="3322421C87A972724DDBEF37B13D468C">Tandberg, Anne Helene S.</mods:namePart>
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<mods:namePart id="D2E322B9580675C582F3538D1DA2F5EE">Vader, Wim</mods:namePart>
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<mods:title id="675CF36D4BAB135045407FBB106503D6">Zootaxa</mods:title>
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<mods:date id="E79B552A8B7BC3E0C637BE5F7D35F4C5">2009</mods:date>
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<mods:number id="A496BA46C87F6579AED4810BFCC6F5CC">2093</mods:number>
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<treatment id="722F8B7C826B650862F1FC16FDDEB463" ID-DOI="http://doi.org/10.5281/zenodo.6216430" ID-GBIF-Taxon="119616089" ID-Zenodo-Dep="6216430" LSID="urn:lsid:plazi:treatment:722F8B7C826B650862F1FC16FDDEB463" httpUri="http://treatment.plazi.org/id/722F8B7C826B650862F1FC16FDDEB463" lastPageId="32" lastPageNumber="33" pageId="24" pageNumber="25">
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<subSubSection id="B29C69E1826B653062F1FC16FED9B26D" pageId="24" pageNumber="25" type="nomenclature">
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<paragraph id="FA393A6A826B653062F1FC16FD85B5B0" blockId="24.[151,577,963,1024]" box="[151,577,963,990]" pageId="24" pageNumber="25">
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<taxonomicName id="3D8641E9826B653062F1FC16FD85B5B0" ID-CoL="42GJM" authority="Stephensen, 1931" authorityName="Stephensen" authorityYear="1931" box="[151,577,963,990]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="24" pageNumber="25" phylum="Arthropoda" rank="species" species="abyssalis">
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<emphasis id="C8F2E678826B653062F1FC16FD85B5B0" bold="true" box="[151,577,963,990]" pageId="24" pageNumber="25">
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<emphasis id="C8F2E678826B653062F1FC16FEA1B5B3" bold="true" box="[151,357,964,990]" italics="true" pageId="24" pageNumber="25">Metopa abyssalis</emphasis>
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<bibRefCitation id="9E17479B826B6530630AFC11FD85B5B0" author="Stephensen" box="[364,577,963,989]" pageId="24" pageNumber="36" refString="Stephensen, K. (1931) Crustacea Malacostraca. VII. (Amphipoda. III.). The Danish Ingolf-Expedition, 3 (11), 179 - 290." type="journal article" year="1931">Stephensen, 1931</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="FA393A6A826B653062F1FC34FED9B26D" blockId="24.[151,577,963,1024]" box="[151,285,998,1024]" pageId="24" pageNumber="25">
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<figureCitation id="62BD26EF826B653062F1FC34FEDDB26D" box="[151,281,998,1024]" captionStart-0="FIGURE 17" captionStart-1="FIGURE 18" captionStartId-0="25.[151,255,1976,2000]" captionStartId-1="26.[151,257,1905,1929]" captionTargetBox-0="[216,1371,197,1951]" captionTargetBox-1="[197,1390,194,1880]" captionTargetId-0="figure@25.[216,1372,197,1951]" captionTargetId-1="figure@26.[197,1390,194,1881]" captionTargetPageId-0="25" captionTargetPageId-1="26" captionText-0="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." captionText-1="FIGURE 18. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm." httpUri-0="https://zenodo.org/record/187552/files/figure.png" httpUri-1="https://zenodo.org/record/187553/files/figure.png" pageId="24" pageNumber="25">Fig. 17–18</figureCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="B29C69E1826B653062F1FBE6FDD7B226" box="[151,531,1076,1099]" pageId="24" pageNumber="25" type="reference_group">
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<paragraph id="FA393A6A826B653062F1FBE6FDD7B226" blockId="24.[151,531,1076,1099]" box="[151,531,1076,1099]" pageId="24" pageNumber="25">
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<taxonomicName id="3D8641E9826B653062F1FBE6FDD7B226" ID-CoL="42GJM" authority="Stephensen, 1931" authorityName="Stephensen" authorityYear="1931" box="[151,531,1076,1099]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="24" pageNumber="25" phylum="Arthropoda" rank="species" species="abyssalis">
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<emphasis id="C8F2E678826B653062F1FBE6FE95B226" box="[151,337,1076,1099]" italics="true" pageId="24" pageNumber="25">Metopa abyssalis</emphasis>
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<bibRefCitation id="9E17479B826B65306331FBE6FDD7B226" author="Stephensen" box="[343,531,1076,1099]" pageId="24" pageNumber="36" refString="Stephensen, K. (1931) Crustacea Malacostraca. VII. (Amphipoda. III.). The Danish Ingolf-Expedition, 3 (11), 179 - 290." type="journal article" year="1931">Stephensen, 1931</bibRefCitation>
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</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="B29C69E1826B650862F1FBA8FB18B74B" lastPageId="32" lastPageNumber="33" pageId="24" pageNumber="25" type="materials_examined">
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<paragraph id="FA393A6A826B653062F1FBA8FE84B28F" blockId="24.[151,1437,1146,2023]" pageId="24" pageNumber="25">
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<emphasis id="C8F2E678826B653062F1FBA8FE4AB2F9" bold="true" box="[151,398,1146,1172]" pageId="24" pageNumber="25">Material examined.</emphasis>
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Morphological examination: ZMUC-CRU 5019. Male. Ingolf Station 101 (7?).
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<geoCoordinate id="9FB25CAD826B65306728FBA8FF6BB2D6" direction="north" orientation="latitude" pageId="24" pageNumber="25" precision="925" value="66.38333">66 23’ N</geoCoordinate>
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,
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<geoCoordinate id="9FB25CAD826B653062DCFB73FEEDB2D6" box="[186,297,1185,1211]" direction="west" orientation="longitude" pageId="24" pageNumber="25" precision="925" value="-12.083333">12 05’ W</geoCoordinate>
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.
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<quantity id="3D7E978F826B65306355FB73FE43B2D6" box="[307,391,1185,1211]" metricMagnitude="3" metricUnit="m" metricValue="1.011" pageId="24" pageNumber="25" unit="m" value="1011.0">1011m</quantity>
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. Temp. -0.7 C. Ingolf Station 138.
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<geoCoordinate id="9FB25CAD826B6530617CFB73FC40B2D6" box="[794,900,1185,1211]" direction="north" orientation="latitude" pageId="24" pageNumber="25" precision="925" value="63.433334">63 26’ N</geoCoordinate>
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,
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<geoCoordinate id="9FB25CAD826B653061E9FB73FC2BB2D6" box="[911,1007,1185,1211]" direction="west" orientation="longitude" pageId="24" pageNumber="25" precision="925" value="-7.9333334">7 56’ W</geoCoordinate>
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.
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<specimenCount id="EC80F1E3826B6530619FFB73FB80B2D6" box="[1017,1092,1185,1211]" pageId="24" pageNumber="25" type="generic">
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<quantity id="3D7E978F826B6530619FFB73FB84B2D6" box="[1017,1088,1185,1211]" metricMagnitude="2" metricUnit="m" metricValue="8.87" pageId="24" pageNumber="25" unit="m" value="887.0">887m</quantity>
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.
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</specimenCount>
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-0.6 C. (for comparison only, not dissected.)
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</paragraph>
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<paragraph id="FA393A6A826B653062A3FB3CFE34B07A" blockId="24.[151,1437,1146,2023]" pageId="24" pageNumber="25">
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<emphasis id="C8F2E678826B653062A3FB3CFCE9B365" bold="true" box="[197,813,1262,1288]" pageId="24" pageNumber="25">
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Morphological redescription of
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<typeStatus id="253D84C8826B65306016FB3CFD6DB365" box="[624,681,1262,1288]" pageId="24" pageNumber="25">type</typeStatus>
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material.
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</emphasis>
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This description is based on the same slides that
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<bibRefCitation id="9E17479B826B653062F1FAC7FEB6B342" author="Stephensen" box="[151,370,1301,1327]" pageId="24" pageNumber="36" refString="Stephensen, K. (1931) Crustacea Malacostraca. VII. (Amphipoda. III.). The Danish Ingolf-Expedition, 3 (11), 179 - 290." type="journal article" year="1931">Stephensen (1931)</bibRefCitation>
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presumably used when he created the species, they are at least made by Stephensen, have his handwriting, and are of the same specimens that Stephensen based his description on. They do, however, miss several of the pieces normally used for a description. There are no other specimens of this species present in the Copenhagen collections than the two samples from Stephensen. Due to the very small sample size of the collections, no further specimens were dissected. Stephensen presumed the slides were of a male; we have found nothing to contradict this. Stephensens slides from station 138 were not found in the collections, these have been of an adult female.
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</paragraph>
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<paragraph id="FA393A6A826B653362A3F9F6FBFFB1BA" blockId="24.[151,1437,1146,2023]" lastBlockId="27.[151,1436,1866,2007]" lastPageId="27" lastPageNumber="28" pageId="24" pageNumber="25">
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Head (
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<figureCitation id="62BD26EF826B65306374F9F6FEAEB053" box="[274,362,1572,1598]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="24" pageNumber="25">Fig. 17</figureCitation>
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): epistome reduced and rounded, lateral cephalic lobes little prominent, rounded; eye small, indistinct, only consisting of a few scattered ommatidia. Antenna 1 (
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<figureCitation id="62BD26EF826B653061D9F998FBDCB009" box="[959,1048,1610,1636]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="24" pageNumber="25">Fig. 17</figureCitation>
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): slightly shorter than antenna 2; basis of peduncle ad broad as half head, peduncle as long as half flagellum; flagellum 10-articulate, few short simple setae on the distal articles. Antenna 2 (
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<figureCitation id="62BD26EF826B653060B6F94AFCE8B0DF" box="[720,812,1688,1714]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="24" pageNumber="25">Fig. 17</figureCitation>
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): peduncle articles 1–3 short; articles 4 and 5 each longer than articles 1–3 together; flagellum 8-articulate, shorter than peduncle, 2 short simple setae distally on the last 6 articles. Mandible (
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<figureCitation id="62BD26EF826B6530638AF937FD80B092" box="[492,580,1765,1791]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="24" pageNumber="25">Fig. 17</figureCitation>
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): palp 3-articulate, cross-section circular, article 2
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<date id="8E381CAA826B653066F3F937FB77B092" box="[1173,1203,1765,1791]" pageId="24" pageNumber="25">3x</date>
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as long as article 1, with one simple seta, article 3 as short as article 1, one simple seta at apex; incisor coarsely serrate, lacinia mobilis more finely serrate, no raker setae on the mandible examined, no molar. Maxilla 1 (
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<figureCitation id="62BD26EF826B6530668BF8E0FA8CB121" box="[1261,1352,1842,1868]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="24" pageNumber="25">Fig. 17</figureCitation>
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): inner plate with one small conical seta; outer plate with one largish cuspidate seta, two simple setae and one serrate seta; palp 1-articulate, distal margin serrate with one short simple seta in each serration, two longer simple setae and one
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<typeStatus id="253D84C8826B65306358F874FEB4B1AD" box="[318,368,1958,1984]" pageId="24" pageNumber="25">type</typeStatus>
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A seta at distal tip. Maxilla 2 (
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<figureCitation id="62BD26EF826B65306086F874FCFCB1AD" box="[736,824,1958,1984]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="24" pageNumber="25">Fig. 17</figureCitation>
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): outer plate in normal position to inner plate; inner plate with one short and two long simple setae; outer plate with one short and strong seta and four long and simple setae. Maxilliped (
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<figureCitation id="62BD26EF826865336390F898FD8BB109" box="[502,591,1866,1892]" captionStart="FIGURE 17" captionStartId="25.[151,255,1976,2000]" captionTargetBox="[216,1371,197,1951]" captionTargetId="figure@25.[216,1372,197,1951]" captionTargetPageId="25" captionText="FIGURE 17. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="27" pageNumber="28">Fig. 17</figureCitation>
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): inner plate fused with a ridge along the midline, a row of short strong setae at distal margin; outer plate very small; palp 4-articulate, simple setae along inner margin of palp and outer plate; article 3 of palp with a cushion of flat serrate setae and two
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<typeStatus id="253D84C882686533619FF845FBE8B1DC" box="[1017,1068,1943,1969]" pageId="27" pageNumber="28">type</typeStatus>
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A setae at distal end; dactylus (article 4) with a line of short flat serrate setae on inner margin, slightly curved.
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</paragraph>
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<caption id="AEF96AE2826A653162F1F86AFD9BB19F" httpUri="https://zenodo.org/record/187552/files/figure.png" pageId="25" pageNumber="26" targetBox="[216,1371,197,1951]" targetPageId="25">
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<paragraph id="FA393A6A826A653162F1F86AFD9BB19F" blockId="25.[151,1436,1976,2034]" pageId="25" pageNumber="26">
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<emphasis id="C8F2E678826A653162F1F86AFEE2B1BD" bold="true" box="[151,294,1976,2000]" pageId="25" pageNumber="26">FIGURE 17.</emphasis>
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<taxonomicName id="3D8641E9826A6531634AF86BFD6DB1BD" authority="Stephensen, 1931" authorityName="Stephensen" authorityYear="1931" box="[300,681,1977,2000]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="25" pageNumber="26" phylum="Arthropoda" rank="species" species="abyssalis">
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<emphasis id="C8F2E678826A6531634AF86BFE22B1BD" box="[300,486,1977,2000]" italics="true" pageId="25" pageNumber="26">Metopa abyssalis</emphasis>
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Stephensen, 1931
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</taxonomicName>
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, holotype, male, 4.5 mm, Iceland: maxilla 2, maxilliped, maxilla 1, left mandible, head. All scale bars are 0.1 mm.
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</paragraph>
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</caption>
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<caption id="AEF96AE28269653262F1F8A3FD4CB1C6" httpUri="https://zenodo.org/record/187553/files/figure.png" pageId="26" pageNumber="27" targetBox="[197,1390,194,1880]" targetPageId="26">
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<paragraph id="FA393A6A8269653262F1F8A3FD4CB1C6" blockId="26.[151,1436,1905,1963]" pageId="26" pageNumber="27">
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<emphasis id="C8F2E6788269653262F1F8A3FEEFB1E4" bold="true" box="[151,299,1905,1929]" pageId="26" pageNumber="27">FIGURE 18.</emphasis>
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<taxonomicName id="3D8641E9826965326355F8A0FD07B1E5" authority="Stephensen, 1931" authorityName="Stephensen" authorityYear="1931" box="[307,707,1905,1929]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="26" pageNumber="27" phylum="Arthropoda" rank="species" species="abyssalis">
|
||
<emphasis id="C8F2E678826965326355F8A0FE31B1E4" box="[307,501,1906,1929]" italics="true" pageId="26" pageNumber="27">Metopa abyssalis</emphasis>
|
||
Stephensen, 1931
|
||
</taxonomicName>
|
||
, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="AEF96AE28268653362F1F933FCEFB176" httpUri="https://zenodo.org/record/187554/files/figure.png" pageId="27" pageNumber="28" targetBox="[151,1436,194,1735]" targetPageId="27">
|
||
<paragraph id="FA393A6A8268653362F1F933FCEFB176" blockId="27.[151,1436,1761,1819]" pageId="27" pageNumber="28">
|
||
<emphasis id="C8F2E6788268653362F1F933FEEAB094" bold="true" box="[151,302,1761,1785]" pageId="27" pageNumber="28">FIGURE 19.</emphasis>
|
||
Comparisons of mandible morphology of
|
||
<taxonomicName id="3D8641E9826865336176F930FC09B094" box="[784,973,1762,1785]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="27" pageNumber="28" phylum="Arthropoda" rank="species" species="clypeata">
|
||
<emphasis id="C8F2E678826865336176F930FC09B094" box="[784,973,1762,1785]" italics="true" pageId="27" pageNumber="28">Metopa clypeata</emphasis>
|
||
</taxonomicName>
|
||
(left mandible) (A, B),
|
||
<taxonomicName id="3D8641E98268653366BBF930FAA2B094" box="[1245,1382,1762,1785]" class="Bivalvia" family="Pandoridae" genus="Pandora" kingdom="Animalia" order="Anomalodesmata" pageId="27" pageNumber="28" phylum="Mollusca" rank="species" species="glacialis">
|
||
<emphasis id="C8F2E6788268653366BBF930FAA2B094" box="[1245,1382,1762,1785]" italics="true" pageId="27" pageNumber="28">M. glacialis</emphasis>
|
||
</taxonomicName>
|
||
(left mandible) (C, D), and
|
||
<taxonomicName id="3D8641E98268653363EEF8D6FDFCB176" box="[392,568,1796,1819]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="27" pageNumber="28" phylum="Arthropoda" rank="species" species="groenlandica">
|
||
<emphasis id="C8F2E6788268653363EEF8D6FDFCB176" box="[392,568,1796,1819]" italics="true" pageId="27" pageNumber="28">M. groenlandica</emphasis>
|
||
</taxonomicName>
|
||
(left mandible) (E, F).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="AEF96AE2826F653462F1F933FD2EB176" httpUri="https://zenodo.org/record/187555/files/figure.png" pageId="28" pageNumber="29" targetBox="[151,1436,194,1736]" targetPageId="28">
|
||
<paragraph id="FA393A6A826F653462F1F933FD2EB176" blockId="28.[151,1436,1761,1819]" pageId="28" pageNumber="29">
|
||
<emphasis id="C8F2E678826F653462F1F933FEEDB094" bold="true" box="[151,297,1761,1785]" pageId="28" pageNumber="29">FIGURE 20.</emphasis>
|
||
Comparisons of gnathopod 1 morphology of
|
||
<taxonomicName id="3D8641E9826F65346146F930FC12B094" box="[800,982,1762,1785]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="clypeata">
|
||
<emphasis id="C8F2E678826F65346146F930FC12B094" box="[800,982,1762,1785]" italics="true" pageId="28" pageNumber="29">Metopa clypeata</emphasis>
|
||
</taxonomicName>
|
||
(A (outside), B (inside)),
|
||
<taxonomicName id="3D8641E9826F65346690F930FABDB094" box="[1270,1401,1762,1785]" class="Bivalvia" family="Pandoridae" genus="Pandora" kingdom="Animalia" order="Anomalodesmata" pageId="28" pageNumber="29" phylum="Mollusca" rank="species" species="glacialis">
|
||
<emphasis id="C8F2E678826F65346690F930FABDB094" box="[1270,1401,1762,1785]" italics="true" pageId="28" pageNumber="29">M. glacialis</emphasis>
|
||
</taxonomicName>
|
||
(C (outside), D (inside)), and
|
||
<taxonomicName id="3D8641E9826F653463D4F8D6FDA6B176" box="[434,610,1796,1819]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="28" pageNumber="29" phylum="Arthropoda" rank="species" species="groenlandica">
|
||
<emphasis id="C8F2E678826F653463D4F8D6FDA6B176" box="[434,610,1796,1819]" italics="true" pageId="28" pageNumber="29">M. groenlandica</emphasis>
|
||
</taxonomicName>
|
||
(E (inside)).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="AEF96AE2826E653562F1FB0CFD2BB375" httpUri="https://zenodo.org/record/187556/files/figure.png" pageId="29" pageNumber="30" targetBox="[151,1435,194,1221]" targetPageId="29">
|
||
<paragraph id="FA393A6A826E653562F1FB0CFD2BB375" blockId="29.[151,1436,1246,1305]" pageId="29" pageNumber="30">
|
||
<emphasis id="C8F2E678826E653562F1FB0CFEEFB29B" bold="true" box="[151,299,1246,1270]" pageId="29" pageNumber="30">FIGURE 21.</emphasis>
|
||
Seta-morphology. A:
|
||
<taxonomicName id="3D8641E9826E65356042FB0DFD19B29B" box="[548,733,1247,1270]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="29" pageNumber="30" phylum="Arthropoda" rank="species" species="clypeata">
|
||
<emphasis id="C8F2E678826E65356042FB0DFD19B29B" box="[548,733,1247,1270]" italics="true" pageId="29" pageNumber="30">Metopa clypeata</emphasis>
|
||
</taxonomicName>
|
||
gnathopod 1, B:
|
||
<taxonomicName id="3D8641E9826E653561C6FB0DFBE7B29B" box="[928,1059,1247,1270]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="29" pageNumber="30" phylum="Arthropoda" rank="species" species="clypeata">
|
||
<emphasis id="C8F2E678826E653561C6FB0DFBE7B29B" box="[928,1059,1247,1270]" italics="true" pageId="29" pageNumber="30">M. clypeata</emphasis>
|
||
</taxonomicName>
|
||
maxilla 1 outer plate apex, C:
|
||
<taxonomicName id="3D8641E9826E65356718FB0DFF37B374" class="Bivalvia" family="Pandoridae" genus="Pandora" kingdom="Animalia" order="Anomalodesmata" pageId="29" pageNumber="30" phylum="Mollusca" rank="species" species="glacialis">
|
||
<emphasis id="C8F2E678826E65356718FB0DFF37B374" italics="true" pageId="29" pageNumber="30">M. glacialis</emphasis>
|
||
</taxonomicName>
|
||
gnathopod 1, D:
|
||
<taxonomicName id="3D8641E9826E653563CAFAD0FD99B374" box="[428,605,1282,1305]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="29" pageNumber="30" phylum="Arthropoda" rank="species" species="groenlandica">
|
||
<emphasis id="C8F2E678826E653563CAFAD0FD99B374" box="[428,605,1282,1305]" italics="true" pageId="29" pageNumber="30">M. groenlandica</emphasis>
|
||
</taxonomicName>
|
||
gnathopod 1.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="FA393A6A826E653562F1FA95FC2FB02C" blockId="29.[151,1437,1351,1940]" pageId="29" pageNumber="30">
|
||
Pereon: Smooth. Gnathopod 1 (
|
||
<figureCitation id="62BD26EF826E6535606DFA95FDA0B30C" box="[523,612,1351,1377]" captionStart="FIGURE 18" captionStartId="26.[151,257,1905,1929]" captionTargetBox="[197,1390,194,1880]" captionTargetId="figure@26.[197,1390,194,1881]" captionTargetPageId="26" captionText="FIGURE 18. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187553/files/figure.png" pageId="29" pageNumber="30">Fig. 18</figureCitation>
|
||
): simple to vaguely subchelate; merus with a patch/cushion of several short, flat slightly serrate setae at posterior margin, four
|
||
<typeStatus id="253D84C8826E6535614FFABEFC98B3EB" box="[809,860,1388,1414]" pageId="29" pageNumber="30">type</typeStatus>
|
||
A setae at posterodistal corner; carpus as long as propodus, suboval with long
|
||
<typeStatus id="253D84C8826E6535638BFA40FDE4B3C1" box="[493,544,1426,1452]" pageId="29" pageNumber="30">type</typeStatus>
|
||
A setae at posterior margin and anterodistal corner, propodus oval with two short simple setae where dactylus folds in, the palm recognizable from the setation, as long as posterior margin; dactylus curved with a small tooth-like projection at tip, short simple setae along inner margin, and one long simple seta at outer margin. Gnathopod 2 - pereopod 4: no data from slide, hidden under coxa 2–4. Pereopod 5: basis slender. Pereopod 6 and 7: basis posteriorly expanded.
|
||
</paragraph>
|
||
<paragraph id="FA393A6A826E653562F1F99EFB13B14C" blockId="29.[151,1437,1351,1940]" pageId="29" pageNumber="30">
|
||
Urosome: smooth. Uropod 1 (
|
||
<figureCitation id="62BD26EF826E65356390F99EFD8AB00B" box="[502,590,1612,1638]" captionStart="FIGURE 18" captionStartId="26.[151,257,1905,1929]" captionTargetBox="[197,1390,194,1880]" captionTargetId="figure@26.[197,1390,194,1881]" captionTargetPageId="26" captionText="FIGURE 18. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187553/files/figure.png" pageId="29" pageNumber="30">Fig. 18</figureCitation>
|
||
): longer than uropod 2; peduncle slightly longer than rami, 3 short setae at inner margin; biramous; rami of equal length, one short and simple seta at inner margin of outer ramus. Uropod 2 (
|
||
<figureCitation id="62BD26EF826E65356370F945FEAAB0DC" box="[278,366,1687,1713]" captionStart="FIGURE 18" captionStartId="26.[151,257,1905,1929]" captionTargetBox="[197,1390,194,1880]" captionTargetId="figure@26.[197,1390,194,1881]" captionTargetPageId="26" captionText="FIGURE 18. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187553/files/figure.png" pageId="29" pageNumber="30">Fig. 18</figureCitation>
|
||
): slightly longer than uropod 3; two short and simple setae at inner margin; biramous, inner ramus as long as peduncle, outer ramus shorter than inner ramus. Uropod 3 (
|
||
<figureCitation id="62BD26EF826E65356673F96EFBA9B0BB" box="[1045,1133,1724,1750]" captionStart="FIGURE 18" captionStartId="26.[151,257,1905,1929]" captionTargetBox="[197,1390,194,1880]" captionTargetId="figure@26.[197,1390,194,1881]" captionTargetPageId="26" captionText="FIGURE 18. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187553/files/figure.png" pageId="29" pageNumber="30">Fig. 18</figureCitation>
|
||
): peduncle approximately as long as ramus; ramus 2-articulate, outer article slightly longer than inner, one short simple seta on inner article. Telson (
|
||
<figureCitation id="62BD26EF826E6535632AF8D5FE60B14C" box="[332,420,1799,1825]" captionStart="FIGURE 18" captionStartId="26.[151,257,1905,1929]" captionTargetBox="[197,1390,194,1880]" captionTargetId="figure@26.[197,1390,194,1881]" captionTargetPageId="26" captionText="FIGURE 18. Metopa abyssalis Stephensen, 1931, holotype, male, 4.5 mm, Iceland: gnathopod 1, telson, uropod 1, uropod 2, uropod 3. All scale bars are 0.1 mm." httpUri="https://zenodo.org/record/187553/files/figure.png" pageId="29" pageNumber="30">Fig. 18</figureCitation>
|
||
): entire, sharp rounded tip; two short cuspidate setae at proximal half.
|
||
</paragraph>
|
||
<paragraph id="FA393A6A826E653562A3F8FEFEEDB1F9" blockId="29.[151,1437,1351,1940]" pageId="29" pageNumber="30">
|
||
<emphasis id="C8F2E678826E653562A3F8FEFEF6B12B" bold="true" box="[197,306,1836,1862]" pageId="29" pageNumber="30">Ecology:</emphasis>
|
||
Very little is known about the ecology of this species. We only know it from the two samples in the collections in Copenhagen (see map D on
|
||
<figureCitation id="62BD26EF826E653560D3F881FCC8B100" box="[693,780,1875,1901]" captionStart="FIGURE 22" captionStartId="30.[151,255,1950,1974]" captionTargetBox="[153,1435,191,1949]" captionTargetId="figure@30.[151,1436,151,1953]" captionTargetPageId="30" captionText="FIGURE 22. Geographic distribution of A: Metopa clypeata and B: M. glacialis An additional record from the Sea of Japan is not on the map due to missing locality-information." httpUri="https://zenodo.org/record/187557/files/figure.png" pageId="29" pageNumber="30">Fig. 22</figureCitation>
|
||
), from 887 and
|
||
<quantity id="3D7E978F826E653561A1F881FBDCB100" box="[967,1048,1875,1901]" metricMagnitude="3" metricUnit="m" metricValue="1.011" pageId="29" pageNumber="30" unit="m" value="1011.0">1011m</quantity>
|
||
depth, and subzero temperatures of the water.
|
||
</paragraph>
|
||
<caption id="AEF96AE2826D653662F1F84CFCDDB1B4" httpUri="https://zenodo.org/record/187557/files/figure.png" pageId="30" pageNumber="31" targetBox="[153,1435,191,1949]" targetPageId="30">
|
||
<paragraph id="FA393A6A826D653662F1F84CFCDDB1B4" blockId="30.[151,1435,1950,2009]" pageId="30" pageNumber="31">
|
||
<emphasis id="C8F2E678826D653662F1F84CFEECB1DB" bold="true" box="[151,296,1950,1974]" pageId="30" pageNumber="31">FIGURE 22.</emphasis>
|
||
Geographic distribution of A:
|
||
<taxonomicName id="3D8641E9826D6536601EF84DFCE8B1DB" box="[632,812,1951,1974]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="30" pageNumber="31" phylum="Arthropoda" rank="species" species="clypeata">
|
||
<emphasis id="C8F2E678826D6536601EF84DFCE8B1DB" box="[632,812,1951,1974]" italics="true" pageId="30" pageNumber="31">Metopa clypeata</emphasis>
|
||
</taxonomicName>
|
||
and B:
|
||
<taxonomicName id="3D8641E9826D653661E5F84DFBE9B1D8" authority="An" authorityName="An" box="[899,1069,1950,1974]" class="Bivalvia" family="Pandoridae" genus="Pandora" kingdom="Animalia" order="Anomalodesmata" pageId="30" pageNumber="31" phylum="Mollusca" rank="species" species="glacialis">
|
||
<emphasis id="C8F2E678826D653661E5F84DFBC1B1DB" box="[899,1029,1951,1974]" italics="true" pageId="30" pageNumber="31">M. glacialis</emphasis>
|
||
An
|
||
</taxonomicName>
|
||
additional record from the Sea of Japan is not on the map due to missing locality-information.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="FA393A6A826C6537634BF842FBF1B1CA" blockId="31.[301,1077,1936,1960]" box="[301,1077,1936,1960]" pageId="31" pageNumber="32">
|
||
Geographic distribution of C:
|
||
<taxonomicName id="3D8641E9826C65376008F843FC97B1C5" box="[622,851,1937,1960]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="31" pageNumber="32" phylum="Arthropoda" rank="species" species="groenlandica">
|
||
<emphasis id="C8F2E678826C65376008F843FC97B1C5" box="[622,851,1937,1960]" italics="true" pageId="31" pageNumber="32">Metopa groenlandica</emphasis>
|
||
</taxonomicName>
|
||
and D:
|
||
<taxonomicName id="3D8641E9826C653761CFF843FBEAB1C5" box="[937,1070,1937,1960]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="31" pageNumber="32" phylum="Arthropoda" rank="species" species="abyssalis">
|
||
<emphasis id="C8F2E678826C653761CFF843FBEAB1C5" box="[937,1070,1937,1960]" italics="true" pageId="31" pageNumber="32">M. abyssalis</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="FA393A6A8253650862A3FF45FB18B74B" blockId="32.[151,1437,151,526]" pageId="32" pageNumber="33">
|
||
<emphasis id="C8F2E6788253650862A3FF45FE4BB6DC" bold="true" box="[197,399,151,177]" pageId="32" pageNumber="33">Other material.</emphasis>
|
||
<bibRefCitation id="9E17479B8253650863FEFF4AFDBFB6DF" author="Stephensen" box="[408,635,152,178]" pageId="32" pageNumber="36" refString="Stephensen, K. (1931) Crustacea Malacostraca. VII. (Amphipoda. III.). The Danish Ingolf-Expedition, 3 (11), 179 - 290." type="journal article" year="1931">Stephensen (1931)</bibRefCitation>
|
||
used dissected material from both stations when he described
|
||
<taxonomicName id="3D8641E982536508671AFF4AFECFB6B5" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="32" pageNumber="33" phylum="Arthropoda" rank="species" species="abyssalis">
|
||
<emphasis id="C8F2E67882536508671AFF4AFECFB6B5" italics="true" pageId="32" pageNumber="33">M. abyssalis</emphasis>
|
||
</taxonomicName>
|
||
. The slide from station 138 was not found in the collections now, and is presumed lost. By agreement with the museum we did not dissect the last remaining specimen in the tube from station 138. We have not been able to find any other specimens of
|
||
<taxonomicName id="3D8641E9825365086082FEDEFCB2B748" box="[740,886,268,293]" class="Malacostraca" family="Stenothoidae" genus="Metopa" kingdom="Animalia" order="Amphipoda" pageId="32" pageNumber="33" phylum="Arthropoda" rank="species" species="abyssalis">
|
||
<emphasis id="C8F2E678825365086082FEDEFCB2B748" box="[740,886,268,293]" italics="true" pageId="32" pageNumber="33">M. abyssalis</emphasis>
|
||
</taxonomicName>
|
||
in other museums collections.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B29C69E18253650862A3FEE0FDDEB463" pageId="32" pageNumber="33" type="discussion">
|
||
<paragraph id="FA393A6A8253650862A3FEE0FDDEB463" blockId="32.[151,1437,151,526]" pageId="32" pageNumber="33">
|
||
<emphasis id="C8F2E6788253650862A3FEE0FE84B721" bold="true" box="[197,320,306,332]" pageId="32" pageNumber="33">Remarks.</emphasis>
|
||
<bibRefCitation id="9E17479B825365086337FEE0FDF5B721" author="Stephensen" box="[337,561,306,332]" pageId="32" pageNumber="36" refString="Stephensen, K. (1931) Crustacea Malacostraca. VII. (Amphipoda. III.). The Danish Ingolf-Expedition, 3 (11), 179 - 290." type="journal article" year="1931">Stephensen (1931)</bibRefCitation>
|
||
dissected out a gnathopod 2 from both a male and a female, they do not show any conspicuous sexual differences. Gnathopod 2 is subchelate, with a subovate coxa; slender basis and subquadrate ischium; merus short, with a few setae at posterior margin, carpus subtriangular, carpal lobe not free, and reaching 1/4 of posterior margin of propodus; propodus suboval, little more than double length of carpus, with a clear palm, oblique, but very clearly marked by a strong tooth at palmar corner, palm crenulate; dacylus smooth, as long as palm.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |