272 lines
50 KiB
XML
272 lines
50 KiB
XML
<document id="640119CE2D306077F5688B30B9C3BAE0" ID-ISSN="11755334" ID-ZooBank="EE4EEEF8-6F05-4B6F-A433-19FC9513E31E" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629807954140" checkinUser="felipe" docAuthor="Komai, Tomoyuki" docDate="2012" docId="03A08858D627FFEF6CB6122E2F9BFAAE" docLanguage="en" docName="zt03468p077.pdf" docOrigin="Zootaxa 3468" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Metacrangon obliqua Komai 2012, n. sp." docType="treatment" docVersion="3" lastPageNumber="50" masterDocId="FF99F020D609FFDE6C2111172D72FF9E" masterDocTitle="3468" masterLastPageNumber="77" masterPageNumber="1" pageNumber="47" updateTime="1699114963458" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="ACF3607D9AEC40FE464406DB516791F2">3468</mods:title>
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<mods:namePart id="35210A9E5AC01D1B2171331EC949E2CE">Komai, Tomoyuki</mods:namePart>
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<mods:title id="BD040F0BAD54CD142C50C0B779F91F9B">Zootaxa</mods:title>
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<mods:part id="DC4D5163BF7A263772866591674D1496">
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<mods:date id="33A14724B89FE9DE11B617FBCBBDFAE2">2012</mods:date>
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<mods:number id="ED249596ABB7270C8A5AEB37620CCBA0">2012-09-07</mods:number>
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<mods:number id="375F86E919FBE4D585F0AA4782016DFA">3468</mods:number>
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<treatment id="03A08858D627FFEF6CB6122E2F9BFAAE" ID-DOI="http://doi.org/10.5281/zenodo.5256947" ID-Zenodo-Dep="5256947" LSID="urn:lsid:plazi:treatment:03A08858D627FFEF6CB6122E2F9BFAAE" httpUri="http://treatment.plazi.org/id/03A08858D627FFEF6CB6122E2F9BFAAE" lastPageId="49" lastPageNumber="50" pageId="46" pageNumber="47">
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<subSubSection id="C3136AC5D627FFF06CB6122E2C97FCCC" box="[151,485,824,851]" pageId="46" pageNumber="47" type="nomenclature">
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<paragraph id="8BB6394ED627FFF06CB6122E2C97FCCC" blockId="46.[151,485,824,884]" box="[151,485,824,851]" pageId="46" pageNumber="47">
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<heading id="D0FE8E22D627FFF06CB6122E2C97FCCC" bold="true" box="[151,485,824,851]" fontSize="11" level="1" pageId="46" pageNumber="47" reason="1">
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<emphasis id="B97DE55CD627FFF06CB6122E2C97FCCC" bold="true" box="[151,485,824,851]" pageId="46" pageNumber="47">
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<taxonomicName id="4C0942CDD627FFF06CB6122E2CEEFCCD" ID-CoL="9CTS6" authority="Komai, 2012" authorityName="Komai" authorityYear="2012" box="[151,412,825,851]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="46" pageNumber="47" phylum="Arthropoda" rank="species" species="obliqua" status="sp. nov.">
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<emphasis id="B97DE55CD627FFF06CB6122E2CEEFCCD" bold="true" box="[151,412,825,851]" italics="true" pageId="46" pageNumber="47">Metacrangon obliqua</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A24E5827D627FFF06D82122F2C97FCCC" box="[419,485,824,850]" pageId="46" pageNumber="47" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3136AC5D627FFF06CB6124B2C22FCEA" box="[151,336,860,884]" pageId="46" pageNumber="47" type="description">
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<paragraph id="8BB6394ED627FFF06CB6124B2C22FCEA" blockId="46.[151,485,824,884]" box="[151,336,860,884]" pageId="46" pageNumber="47">
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(
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<figureCitation id="133225CBD627FFF06CBE124B2D87FCEA" box="[159,245,860,884]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Figs 24</figureCitation>
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,
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<figureCitation id="133225CBD627FFF06D20124B2C6DFCEA" box="[257,287,860,884]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="46" pageNumber="47">25</figureCitation>
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,
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<figureCitation id="133225CBD627FFF06D0A124B2C3AFCEA" box="[299,328,860,884]" captionStart="FIGURE 41" captionStartId="72.[151,250,1237,1260]" captionTargetBox="[166,1434,200,1198]" captionTargetId="figure-300@72.[151,1436,196,1211]" captionTargetPageId="72" captionText="FIGURE 41. Geographical distribution of Metacrangon cornuta Komai & Komatsu, 2009 (), M. holthuisi Komai, 2010 (), M. miyakei Kim, 2005 (), M. obliqua n. sp. (), and M. sinensis Fujino & Miyake, 1970 ()." pageId="46" pageNumber="47">41</figureCitation>
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)
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C3136AC5D627FFF06CB612B3293AFC41" pageId="46" pageNumber="47" type="materials_examined">
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<paragraph id="8BB6394ED627FFF06CB612B3293AFC41" blockId="46.[151,1436,931,2036]" pageId="46" pageNumber="47">
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<emphasis id="B97DE55CD627FFF06CB612B32C34FC22" bold="true" box="[151,326,931,956]" inLineHeading="true" pageId="46" pageNumber="47" reason="1">Type material.</emphasis>
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<materialsCitation id="3B613313D627FFF06D6F12B3293AFC41" collectingDate="1991-06-09" collectorName="Igarashi" country="Japan" elevation="275" location="Islet" municipality="Sea" pageId="46" pageNumber="47" specimenCount="1" stateProvince="Hokkaido" typeStatus="holotype">
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<typeStatus id="54B287ECD627FFF06D6F12B32CC9FC22" box="[334,443,932,956]" pageId="46" pageNumber="47" type="holotype">Holotype</typeStatus>
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: NW of Matsumae-ko-jima
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<location id="8ED66F95D627FFF06EDA12B32E5CFC22" LSID="urn:lsid:plazi:treatment:03A08858D627FFEF6CB6122E2F9BFAAE:8ED66F95D627FFF06EDA12B32E5CFC22" box="[763,814,932,956]" country="Japan" municipality="Sea" name="Islet" pageId="46" pageNumber="47" stateProvince="Hokkaido">Islet</location>
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, southern
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<collectingRegion id="49CDF7ACD627FFF06F8512B32967FC22" box="[932,1045,932,956]" country="Japan" name="Hokkaido" pageId="46" pageNumber="47">Hokkaido</collectingRegion>
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,
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<collectingMunicipality id="6BD2A334D627FFF0680312B32938FC22" box="[1058,1098,932,956]" pageId="46" pageNumber="47">Sea</collectingMunicipality>
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of
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<collectingCountry id="F31E79DED627FFF0685312B329C7FC25" box="[1138,1205,932,955]" name="Japan" pageId="46" pageNumber="47">Japan</collectingCountry>
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,
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<quantity id="4CF194ABD627FFF068E312B32836FC25" box="[1218,1348,932,956]" metricMagnitude="2" metricUnit="m" metricValue="2.75" metricValueMax="3.0" metricValueMin="2.5" pageId="46" pageNumber="47" unit="m" value="275.0" valueMax="300.0" valueMin="250.0">
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<elevation id="0024DE7DD627FFF068E312B32836FC25" box="[1218,1348,932,956]" metricMagnitude="2" metricUnit="m" metricValue="2.75" metricValueMax="3.0" metricValueMin="2.5" pageId="46" pageNumber="47" unit="m" value="275.0" valueMax="300.0" valueMin="250.0">250–300 m</elevation>
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</quantity>
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,
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<date id="FFB71F8ED627FFF0697312B32DA3FC41" pageId="46" pageNumber="47" value="1991-06-09">
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<collectingDate id="EFF3E666D627FFF0697312B32DA3FC41" pageId="46" pageNumber="47" value="1991-06-09">9 June 1991</collectingDate>
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</date>
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,
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<collectingMethod id="52484159D627FFF06CFC12D02C12FC41" box="[221,352,967,991]" pageId="46" pageNumber="47">shrimp trap</collectingMethod>
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, coll.
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<collectorName id="26FC5C98D627FFF06D8212D02F72FC41" box="[419,512,967,991]" pageId="46" pageNumber="47">Igarashi</collectorName>
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||
, 1 ovigerous female (cl
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||
<quantity id="4CF194ABD627FFF06F2C12D02E07FC41" box="[781,885,967,991]" metricMagnitude="-2" metricUnit="m" metricValue="1.24" pageId="46" pageNumber="47" unit="mm" value="12.4">12.4 mm</quantity>
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), CBM-ZC 10673.
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</materialsCitation>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C3136AC5D627FFEF6CE812FC2F2EFCA9" lastPageId="49" lastPageNumber="50" pageId="46" pageNumber="47" type="description">
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<paragraph id="8BB6394ED627FFF06CE812FC2D94FA2A" blockId="46.[151,1436,931,2036]" pageId="46" pageNumber="47">
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<emphasis id="B97DE55CD627FFF06CE812FC2C28FB9A" bold="true" box="[201,346,1003,1028]" inLineHeading="true" pageId="46" pageNumber="47" reason="1">Description.</emphasis>
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<emphasis id="B97DE55CD627FFF06D4312FB2CC4FB9A" box="[354,438,1004,1028]" italics="true" pageId="46" pageNumber="47">Female</emphasis>
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||
(
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||
<typeStatus id="54B287ECD627FFF06DE712FB2F5CFB9A" box="[454,558,1004,1028]" pageId="46" pageNumber="47" type="holotype">holotype</typeStatus>
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||
). Rostrum (
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||
<figureCitation id="133225CBD627FFF06E9012FB2E2DFB9A" box="[689,863,1004,1028]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Figs 24A, B, G</figureCitation>
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,
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<figureCitation id="133225CBD627FFF06F4B12FB2EE9FB9A" box="[874,923,1004,1028]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="46" pageNumber="47">25A</figureCitation>
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) triangular in dorsal view, somewhat ascending (angle against horizontal plane of carapace about 30°), overreaching antennal teeth (slightly less than 0.2 times as long as carapace); tip blunt in dorsal view; dorsal surface shallowly concave; ventral carina high. Carapace (
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<figureCitation id="133225CBD627FFF0694B15232C79FBF1" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Figs 24A, B, G</figureCitation>
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,
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<figureCitation id="133225CBD627FFF06D3715402C35FBF1" box="[278,327,1111,1135]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="46" pageNumber="47">25A</figureCitation>
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) widened posteriorly, nearly as long as wide postorbitally; middorsal carina extending to posterior 0.2 of carapace, with 2 greatly unequal middorsal teeth; anterior tooth epigastric in position (arising at about 0.1 of carapace length), slender, subconical, obliquely erect, not reaching base of rostrum, tip subacute; posterior tooth much smaller than anterior tooth, arising at about 0.6 of carapace length; no denticle present between 2 middorsal teeth; submedian teeth present; antennal tooth ascending in similar degree to rostrum in lateral view, acute; postorbital angle rounded (left) or slightly produced (right); orbital cleft present; anterolateral margin between antennal and branchiostegal teeth sinuous, with tiny denticle; branchiostegal tooth moderately strong, directed forward in dorsal view, ascending in similar degree to rostrum in lateral view, slightly overreaching distolateral angle of antennal basicerite; branchiostegal carina curving, not reaching level of posterior end of hepatic groove; branchial carina absent.
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</paragraph>
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<paragraph id="8BB6394ED627FFF06CE814D72926F92E" blockId="46.[151,1436,931,2036]" pageId="46" pageNumber="47">
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Abdomen (
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<figureCitation id="133225CBD627FFF06D6614D72CB8FA46" box="[327,458,1472,1496]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Fig. 24C–F</figureCitation>
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) slightly sculptured. First and second somites rounded dorsally, posterodorsal margins not elevated; third to fifth somites with low, rather broad, distinct middorsal carinae, those of third and fourth somites not reaching posterodorsal margin of respective somite, that of fifth carina confluent with low, broad anterior transverse carina. Fifth somite with low lateral ridge. Pleura of anterior three somites rounded, anteroventral margin of fourth pleuron rounded. Sixth somite with distinct submedian carinae, reaching nearly to posterodorsal margin; pleuron shallowly depressed; posterodorsal margin broken; posterolateral process terminating in blunt tooth. Telson (
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||
<figureCitation id="133225CBD627FFF06D19178F2CE9F92E" box="[312,411,1688,1712]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Fig. 24E</figureCitation>
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) at least with 2 pairs of dorsolateral spines, but tip broken off.
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</paragraph>
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<paragraph id="8BB6394ED627FFF06CE817AB2C35F882" blockId="46.[151,1436,931,2036]" pageId="46" pageNumber="47">
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Eye (
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<figureCitation id="133225CBD627FFF06D2217AB2C1BF94A" box="[259,361,1724,1748]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Fig. 24G</figureCitation>
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) stout, about 1.2 times longer than wide; cornea as wide as eyestalk, its width slightly more than 0.1 of carapace length; eyestalk bearing rounded dorsal tubercle on dorsodistal protrusion not reaching distal corneal margin.
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</paragraph>
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<paragraph id="8BB6394ED627FFF06CE8163F2FFAF86A" blockId="46.[151,1436,931,2036]" pageId="46" pageNumber="47">
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Antennular peduncle (
|
||
<figureCitation id="133225CBD627FFF06DE7163F2F42F8DE" box="[454,560,1832,1856]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="46" pageNumber="47">Figs 24G</figureCitation>
|
||
,
|
||
<figureCitation id="133225CBD627FFF06E1C163F2F1CF8DE" box="[573,622,1832,1856]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="46" pageNumber="47">25A</figureCitation>
|
||
) moderately stout, distinctly overreaching midlength of antennal scale. First segment with prominent, acuminate distolateral process directed forward and reaching midlength of second segment; stylocerite terminating in slender, acute tooth, far falling short of distolateral process of first segment, lateral margin obtusely angular. Second segment with prominent, acute, laterally directed distolateral process overreaching distal margin of third segment. Outer flagellum overreaching distal margin of lamella of antennal scale by 0.5 length, consisting of 11 articles.
|
||
</paragraph>
|
||
<caption id="DF7669C6D626FFF16CB6165A2871F840" pageId="47" pageNumber="48" startId="47.[151,250,1869,1892]" targetBox="[224,1361,197,1836]" targetPageId="47">
|
||
<paragraph id="8BB6394ED626FFF16CB6165A2871F840" blockId="47.[151,1437,1869,2014]" pageId="47" pageNumber="48">
|
||
<emphasis id="B97DE55CD626FFF16CB6165A2C6DF8FA" bold="true" box="[151,287,1869,1892]" pageId="47" pageNumber="48">FIGURE 24.</emphasis>
|
||
<taxonomicName id="4C0942CDD626FFF16D0416592F72F8FD" authority="Komai, 2012" authorityName="Komai" authorityYear="2012" box="[293,512,1869,1891]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="47" pageNumber="48" phylum="Arthropoda" rank="species" species="obliqua" status="sp. nov.">
|
||
<emphasis id="B97DE55CD626FFF16D0416592F72F8FD" box="[293,512,1869,1891]" italics="true" pageId="47" pageNumber="48">Metacrangon obliqua</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97DE55CD626FFF16E2716592F4DF8FD" bold="true" box="[518,575,1870,1891]" pageId="47" pageNumber="48">
|
||
<taxonomicNameLabel id="A24E5827D626FFF16E2716592F4DF8FD" box="[518,575,1870,1891]" pageId="47" pageNumber="48" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF7669C6D639FFEE6CB6163B28E6F842" pageId="48" pageNumber="49" startId="48.[151,250,1836,1859]" targetBox="[243,1355,204,1797]" targetPageId="48">
|
||
<paragraph id="8BB6394ED639FFEE6CB6163B28E6F842" blockId="48.[151,1437,1836,2012]" pageId="48" pageNumber="49">
|
||
<emphasis id="B97DE55CD639FFEE6CB6163B2C6DF8DD" bold="true" box="[151,287,1836,1859]" pageId="48" pageNumber="49">FIGURE 25.</emphasis>
|
||
<taxonomicName id="4C0942CDD639FFEE6D04163A2F72F8DD" authority="Komai, 2012" authorityName="Komai" authorityYear="2012" box="[293,512,1837,1859]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="49" phylum="Arthropoda" rank="species" species="obliqua" status="sp. nov.">
|
||
<emphasis id="B97DE55CD639FFEE6D04163A2F72F8DD" box="[293,512,1837,1859]" italics="true" pageId="48" pageNumber="49">Metacrangon obliqua</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97DE55CD639FFEE6E27163A2F4DF8DC" bold="true" box="[518,575,1837,1858]" pageId="48" pageNumber="49">
|
||
<taxonomicNameLabel id="A24E5827D639FFEE6E27163A2F4DF8DC" box="[518,575,1837,1858]" pageId="48" pageNumber="49" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BB6394ED638FFEF6CE811802910FE82" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
Antenna (
|
||
<figureCitation id="133225CBD638FFEF6D1811802CD6FF31" box="[313,420,151,175]" captionStart="FIGURE 24" captionStartId="47.[151,250,1869,1892]" captionTargetBox="[224,1361,197,1836]" captionTargetId="figure-108@47.[203,1383,193,1848]" captionTargetPageId="47" captionText="FIGURE 24. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, carapace and cephalic appendages, dorsal view (setae partially omitted; right antennal scale damaged); B, carapace, lateral view; C, first to fourth abdominal somites; D, fifth abdominal somites; E, sixth abdominal somite and telson (both damaged); F, abdomen, lateral view; G, anterior part of carapace and cephalic appendages, left side, dorsal view (setae omitted; distolateral tooth of antennal scale damaged, broken line indicating reconstruction). Scale bars: 5 mm for A–F; 2 mm for G." pageId="49" pageNumber="50">Figs 24G</figureCitation>
|
||
,
|
||
<figureCitation id="133225CBD638FFEF6D9311802C96FF31" box="[434,484,151,175]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">25A</figureCitation>
|
||
) with basicerite having dorsolateral distal angle produced in small subacute tooth, ventrolateral tooth slender, acute. Antennal scale (
|
||
<figureCitation id="133225CBD638FFEF6EE811AB2E5FFF4A" box="[713,813,188,212]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25B</figureCitation>
|
||
) 0.5 times as long as carapace and about 2.7 times longer than wide; lateral margin concave; distolateral tooth broken off, but estimated reconstruction suggesting relatively slender tooth distinctly overreaching distal margin of roundly triangular lamella.
|
||
</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE810302947FEFA" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
Third maxilliped (
|
||
<figureCitation id="133225CBD638FFEF6DB410302C8AFEA1" box="[405,504,295,319]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25C</figureCitation>
|
||
) moderately stout; ultimate segment gradually tapering distally in distal half, about 4.5 times longer than wide; penultimate segment about 2.0 times longer than wide.
|
||
</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE810782903FDC1" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
First pereopod (
|
||
<figureCitation id="133225CBD638FFEF6D5C10782F76FE19" box="[381,516,367,391]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25D, E</figureCitation>
|
||
) with palm 3.1 times longer than wide, not markedly widened proximally or distally, lateral and mesial margins faintly sinuous; carpus without distolateral tooth; merus with 2 small dorsodistal teeth, ventral margin sinuous, carinate. Second and third pereopods typical of genus (
|
||
<figureCitation id="133225CBD638FFEF687D10A02990FE51" box="[1116,1250,439,463]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25F, G</figureCitation>
|
||
); third pereopod overreaching distal margin of antennal scale by length of dactylus. Fourth pereopod (
|
||
<figureCitation id="133225CBD638FFEF684110CB29B5FE6A" box="[1120,1223,476,500]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25H</figureCitation>
|
||
) moderately stout; dactylus (
|
||
<figureCitation id="133225CBD638FFEF6D2610E82C17FD89" box="[263,357,511,535]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25I</figureCitation>
|
||
) spatulate, subtriangular with slightly convex dorsal and nearly straight ventral margins, 3.9 times longer than broad. Fifth pereopod (
|
||
<figureCitation id="133225CBD638FFEF6E4413332FB0FDA2" box="[613,706,548,572]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25J</figureCitation>
|
||
) with dactylus subspatulate, about 0.8 times as long as propodus (
|
||
<figureCitation id="133225CBD638FFEF6CBE13502C7AFDC1" box="[159,264,583,607]" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25K</figureCitation>
|
||
); merus-ischium combined about 0.8 times as long as that of fourth pereopod.
|
||
</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE8137B2DA6FD39" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
Uropodal exopod with laterally pointed posterolateral tooth; spinule present mesial to posterolateral tooth (
|
||
<figureCitation id="133225CBD638FFEF694F137B2DBAFD39" captionStart="FIGURE 25" captionStartId="48.[151,250,1836,1859]" captionTargetBox="[243,1355,204,1797]" captionTargetId="figure-143@48.[223,1364,193,1815]" captionTargetPageId="48" captionText="FIGURE 25. Metacrangon obliqua n. sp., holotype, ovigerous female (cl 12.4 mm), CBM-ZC 10673, Hokkaido, Sea of Japan. A, anterior part of carapace and cephalic appendages, lateral view; B, left antennal scale (distolateral tooth damaged, broken line indicating reconstruction); C, left third maxilliped, dorsal view (setae omitted); D, left first pereopod, lateral view; E, same, chela, dorsal (extensor) view (setae omitted); F, left second pereopod, lateral view (chela damaged); G, left third pereopod, lateral view; H, right fourth pereopod, lateral view; I, same, dactylus, lateral view; J, left fifth pereopod, lateral view; J, same, dactylus, flexor view; L, posterolateral tooth of left uropodal exopod, dorsal view. Scale bars: 2 mm for A–H, J; 1 mm for I, K, L." pageId="49" pageNumber="50">Fig. 25L</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE813A32F44FD52" blockId="49.[151,1436,151,1328]" box="[201,566,692,716]" pageId="49" pageNumber="50">
|
||
Eggs 2.0 x
|
||
<quantity id="4CF194ABD638FFEF6D6613A32CD2FD55" box="[327,416,692,716]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="49" pageNumber="50" unit="mm" value="1.6">1.6 mm</quantity>
|
||
; not counted.
|
||
</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE813C02CF6FD71" blockId="49.[151,1436,151,1328]" box="[201,388,727,751]" pageId="49" pageNumber="50">Males unknown.</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE813EC2CBCFC8A" blockId="49.[151,1436,151,1328]" box="[201,462,763,788]" pageId="49" pageNumber="50">
|
||
<emphasis id="B97DE55CD638FFEF6CE813EC2C23FC8A" bold="true" box="[201,337,763,788]" inLineHeading="true" pageId="49" pageNumber="50" reason="1">Coloration.</emphasis>
|
||
Unknown.
|
||
</paragraph>
|
||
<paragraph id="8BB6394ED638FFEF6CE812082F2EFCA9" blockId="49.[151,1436,151,1328]" box="[201,604,799,824]" pageId="49" pageNumber="50">
|
||
<emphasis id="B97DE55CD638FFEF6CE812082D8BFCA6" bold="true" box="[201,249,799,824]" pageId="49" pageNumber="50">Size</emphasis>
|
||
. Ovigerous female cl
|
||
<quantity id="4CF194ABD638FFEF6DD012082F2AFCA9" box="[497,600,799,823]" metricMagnitude="-2" metricUnit="m" metricValue="1.24" pageId="49" pageNumber="50" unit="mm" value="12.4">12.4 mm</quantity>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3136AC5D638FFEF6CE812542C6FFCE1" pageId="49" pageNumber="50" type="distribution">
|
||
<paragraph id="8BB6394ED638FFEF6CE812542C6FFCE1" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
<emphasis id="B97DE55CD638FFEF6CE812542C10FCC2" bold="true" box="[201,354,835,860]" inLineHeading="true" pageId="49" pageNumber="50" reason="1">Distribution.</emphasis>
|
||
Known only from the
|
||
<typeStatus id="54B287ECD638FFEF6E4D12532FEEFCC2" box="[620,668,836,860]" pageId="49" pageNumber="50">type</typeStatus>
|
||
locality, Sea of
|
||
<collectingCountry id="F31E79DED638FFEF6F7812532EEBFCC5" box="[857,921,836,859]" name="Japan" pageId="49" pageNumber="50">Japan</collectingCountry>
|
||
off Matsumae, southern
|
||
<collectingRegion id="49CDF7ACD638FFEF689812532855FCC2" box="[1209,1319,836,860]" country="Japan" name="Hokkaido" pageId="49" pageNumber="50">Hokkaido</collectingRegion>
|
||
(
|
||
<figureCitation id="133225CBD638FFEF6919125328FDFCC2" box="[1336,1423,836,860]" captionStart="FIGURE 42" captionStartId="73.[151,250,1454,1477]" captionTargetBox="[154,1433,418,1415]" captionTargetId="figure-123@73.[151,1436,414,1427]" captionTargetPageId="73" captionText="FIGURE 42. Geographical distribution of Metacrangon asiaticus (Kobjakova, 1955) (), M. proxima Kim, 2005 (), and M. tsugaruensis n. sp. ()." pageId="49" pageNumber="50">Fig. 42</figureCitation>
|
||
);
|
||
<quantity id="4CF194ABD638FFEF6CB612702C6BFCE1" box="[151,281,871,895]" metricMagnitude="2" metricUnit="m" metricValue="2.75" metricValueMax="3.0" metricValueMin="2.5" pageId="49" pageNumber="50" unit="m" value="275.0" valueMax="300.0" valueMin="250.0">
|
||
250–
|
||
<specimenCount id="9D0FF2C7D638FFEF6CEE12702C6BFCE1" box="[207,281,871,895]" pageId="49" pageNumber="50" type="generic">300 m</specimenCount>
|
||
</quantity>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3136AC5D638FFEF6CE8129B2EF7FB79" pageId="49" pageNumber="50" type="discussion">
|
||
<paragraph id="8BB6394ED638FFEF6CE8129B2EF7FB79" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
<emphasis id="B97DE55CD638FFEF6CE8129B2C4FFC3A" bold="true" box="[201,317,908,932]" inLineHeading="true" pageId="49" pageNumber="50" reason="1">Remarks.</emphasis>
|
||
This new species is similar to
|
||
<taxonomicName id="4C0942CDD638FFEF6EBB129A2EE2FC3A" authorityName="Komai & Komatsu" authorityYear="2009" box="[666,912,909,932]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="cornuta">
|
||
<emphasis id="B97DE55CD638FFEF6EBB129A2EE2FC3A" box="[666,912,909,932]" italics="true" pageId="49" pageNumber="50">Metacrangon cornuta</emphasis>
|
||
</taxonomicName>
|
||
in the position of carapace teeth, the armature of the antennular peduncle and the shape of the antennal scale. However, it differs from
|
||
<taxonomicName id="4C0942CDD638FFEF68A012A6298CFC56" authorityName="Komai & Komatsu" authorityYear="2009" box="[1153,1278,945,968]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="cornuta">
|
||
<emphasis id="B97DE55CD638FFEF68A012A6298CFC56" box="[1153,1278,945,968]" italics="true" pageId="49" pageNumber="50">M. cornuta</emphasis>
|
||
</taxonomicName>
|
||
in the shorter rostrum with a rounded tip (slightly less than 0.2 times as long as the carapace versus more than 0.3 times as long; the rostral tip is acuminate in
|
||
<taxonomicName id="4C0942CDD638FFEF6DC312EE2F2CFB8E" authorityName="Komai & Komatsu" authorityYear="2009" box="[482,606,1017,1040]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="cornuta">
|
||
<emphasis id="B97DE55CD638FFEF6DC312EE2F2CFB8E" box="[482,606,1017,1040]" italics="true" pageId="49" pageNumber="50">M. cornuta</emphasis>
|
||
</taxonomicName>
|
||
), smaller and more posteriorly arising anterior middorsal tooth on the carapace (at 0.1 of the carapace length versus 0.2), the more clearly delimited middorsal carina on the fourth and fifth abdominal somites and the more stout ultimate segment of the third maxilliped (4.5 times as long as wide versus 6.0 times as long).
|
||
<taxonomicName id="4C0942CDD638FFEF6D5915722F1DFBE2" authority="Komai, 2012" authorityName="Komai" authorityYear="2012" box="[376,623,1124,1148]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="obliqua" status="sp. nov.">
|
||
<emphasis id="B97DE55CD638FFEF6D5915722F1DFBE2" box="[376,623,1124,1148]" italics="true" pageId="49" pageNumber="50">Metacrangon obliqua</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B97DE55CD638FFEF6E5815732FC8FBE2" bold="true" box="[633,698,1124,1148]" pageId="49" pageNumber="50">
|
||
<taxonomicNameLabel id="A24E5827D638FFEF6E5815732FC8FBE2" box="[633,698,1124,1148]" pageId="49" pageNumber="50" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
also closely resembles
|
||
<taxonomicName id="4C0942CDD638FFEF6FEE15722904FBE2" baseAuthorityName="M.J.Rathbun" baseAuthorityYear="1902" box="[975,1142,1125,1148]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="spinirostris">
|
||
<emphasis id="B97DE55CD638FFEF6FEE15722904FBE2" box="[975,1142,1125,1148]" italics="true" pageId="49" pageNumber="50">M. spinirostris</emphasis>
|
||
</taxonomicName>
|
||
. Nevertheless, the not so ascending rostrum, antennal and branchiostegal teeth and non-elongate anterior middorsal tooth on the carapace distinguish the new species from
|
||
<taxonomicName id="4C0942CDD638FFEF6E3715BA2FCEFB5A" baseAuthorityName="M.J.Rathbun" baseAuthorityYear="1902" box="[534,700,1197,1220]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="spinirostris">
|
||
<emphasis id="B97DE55CD638FFEF6E3715BA2FCEFB5A" box="[534,700,1197,1220]" italics="true" pageId="49" pageNumber="50">M. spinirostris</emphasis>
|
||
</taxonomicName>
|
||
. In addition, the branchiostegal teeth are directed forward in
|
||
<taxonomicName id="4C0942CDD638FFEF695C15BA2D9EFB76" authorityName="Komai" authorityYear="2012" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="obliqua">
|
||
<emphasis id="B97DE55CD638FFEF695C15BA2D9EFB76" italics="true" pageId="49" pageNumber="50">M. obliqua</emphasis>
|
||
</taxonomicName>
|
||
, rather than distinctly curved laterally as in
|
||
<taxonomicName id="4C0942CDD638FFEF6EFB15C62E0FFB79" baseAuthorityName="M.J.Rathbun" baseAuthorityYear="1902" box="[730,893,1232,1256]" class="Malacostraca" family="Crangonidae" genus="Metacrangon" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="spinirostris">
|
||
<emphasis id="B97DE55CD638FFEF6EFB15C62E0FFB79" box="[730,893,1232,1256]" italics="true" pageId="49" pageNumber="50">M. spinirostris</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3136AC5D638FFEF6CE815E32F9BFAAE" pageId="49" pageNumber="50" type="etymology">
|
||
<paragraph id="8BB6394ED638FFEF6CE815E32F9BFAAE" blockId="49.[151,1436,151,1328]" pageId="49" pageNumber="50">
|
||
<emphasis id="B97DE55CD638FFEF6CE815E32C3DFA95" box="[201,335,1268,1292]" inLineHeading="true" pageId="49" pageNumber="50" reason="1">
|
||
<emphasis id="B97DE55CD638FFEF6CE815E32C3AFA92" bold="true" box="[201,328,1268,1292]" pageId="49" pageNumber="50">Etymology</emphasis>
|
||
.
|
||
</emphasis>
|
||
From the Latin
|
||
<emphasis id="B97DE55CD638FFEF6E2915E32F1BFA92" box="[520,617,1268,1292]" italics="true" pageId="49" pageNumber="50">obliquus</emphasis>
|
||
(= oblique), in reference to the prominent, obliquely erected distolateral tooth of the first segment of the antennular peduncle.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |