460 lines
66 KiB
XML
460 lines
66 KiB
XML
<document id="73ED9958AB61382B182134DBA9391BC3" ID-ISSN="11755334" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1626378084588" checkinUser="felipe" docAuthor="Gouws, Gavin" docDate="2008" docId="03C287E9502CFFFDFF095256FD26CFBB" docLanguage="en" docName="zt01690p062.pdf" docOrigin="Zootaxa 1690" docStyle="DocumentStyle:C4791ACFF01C5C140D2C1A203DB3C9B0.4:Zootaxa.2007-2008.monograph" docStyleId="C4791ACFF01C5C140D2C1A203DB3C9B0" docStyleName="Zootaxa.2007-2008.monograph" docStyleVersion="4" docTitle="Mesamphisopus setosus Gouws 2008, n. sp." docType="treatment" docVersion="2" lastPageNumber="51" masterDocId="FFFBFF915006FFCFFF9E5459FFFACC69" masterDocTitle="New species of Mesamphisopus, an endemic South African freshwater isopod genus (Isopoda: Phreatoicidea: Mesamphisopidae)" masterLastPageNumber="62" masterPageNumber="1" pageNumber="43" updateTime="1699010168584" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:mods id="B8135FC6925CD4109556070E145F10FD" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="20D6193C09F1449B77BA0C06F5BF5D3B">
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<mods:title id="1B344527A91C8FFCDF29AA8367DD3029">New species of Mesamphisopus, an endemic South African freshwater isopod genus (Isopoda: Phreatoicidea: Mesamphisopidae)</mods:title>
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</mods:titleInfo>
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<mods:name id="CBAE7D793FF916B42D6013098DAA5881" type="personal">
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<mods:role id="A04A34FAC58403058373E0E572D69862">
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<mods:roleTerm id="EF4C7808CA19DFB22AD62FB37B86E741">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="513CFC78694F65A7B72C3C4B2DA6D81E">Gouws, Gavin</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="EBFAE3B5AF05305C693BE2326B57BEF6">text</mods:typeOfResource>
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<mods:titleInfo id="7F5416440593E8C625EA5F24D83ECC88">
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<mods:title id="C843FC8EC8956ADAFEFA12810928ABFA">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="1E4E3AAC4A0EE6DF70E4900C2AADF6EF">
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<mods:date id="DBBB5DAF9E2284F71A2FB7C98F7EE290">2008</mods:date>
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<mods:detail id="26740488FFEDACBC519F5B2B143511DC" type="pubDate">
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<mods:number id="E594329D21D4E8A27DFB4EF8ABCBDD27">2008-01-25</mods:number>
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</mods:detail>
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<mods:detail id="1B5A4D9E5CD077AE074BD3BCB5E70964" type="volume">
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<mods:number id="227FD9D83DDC0783073B1A4235DEB86C">1690</mods:number>
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<mods:extent id="65456E8FF9D98118299133975E448FAF" unit="page">
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<mods:start id="E3B84A1641830AB8A0DB4E9FAA5A8F0A">1</mods:start>
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<mods:end id="460463B0C8556207AEC1BF35EBCAD5AC">62</mods:end>
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</mods:extent>
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</mods:part>
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<mods:classification id="46D2D7819268793202A3ED5F48699F3E">journal article</mods:classification>
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<mods:identifier id="F9000EFCC6BED2921C74F518210B17C8" type="ISSN">11755334</mods:identifier>
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</mods:mods>
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<treatment id="03C287E9502CFFFDFF095256FD26CFBB" LSID="urn:lsid:plazi:treatment:03C287E9502CFFFDFF095256FD26CFBB" httpUri="http://treatment.plazi.org/id/03C287E9502CFFFDFF095256FD26CFBB" lastPageId="50" lastPageNumber="51" pageId="42" pageNumber="43">
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<subSubSection id="C3716574502CFFE5FF095256FDFBCA40" box="[151,513,1551,1577]" pageId="42" pageNumber="43" type="nomenclature">
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<paragraph id="8BD436FF502CFFE5FF095256FDFBCA40" blockId="42.[151,513,1551,1612]" box="[151,513,1551,1577]" pageId="42" pageNumber="43">
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<heading id="D09C8193502CFFE5FF095256FDFBCA40" bold="true" box="[151,513,1551,1577]" fontSize="11" level="1" pageId="42" pageNumber="43" reason="1">
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<emphasis id="B91FEAED502CFFE5FF095256FDFBCA40" bold="true" box="[151,513,1551,1577]" pageId="42" pageNumber="43">
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<taxonomicName id="4C6B4D7C502CFFE5FF095256FE42CA40" ID-CoL="3ZXQB" authority="Gouws, 2008" authorityName="Gouws" authorityYear="2008" box="[151,440,1551,1577]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="42" pageNumber="43" phylum="Arthropoda" rank="species" species="setosus" status="sp. nov.">
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<emphasis id="B91FEAED502CFFE5FF095256FE42CA40" bold="true" box="[151,440,1551,1577]" italics="true" pageId="42" pageNumber="43">Mesamphisopus setosus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A22C5796502CFFE5FE215256FDFBCA40" box="[447,513,1551,1577]" pageId="42" pageNumber="43" 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="C3716574502CFFE5FF09526BFEC5CA25" box="[151,319,1586,1612]" pageId="42" pageNumber="43" type="description">
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<paragraph id="8BD436FF502CFFE5FF09526BFEC5CA25" blockId="42.[151,513,1551,1612]" box="[151,319,1586,1612]" pageId="42" pageNumber="43">
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<figureCitation id="13502A7A502CFFE5FF09526BFEC5CA25" box="[151,319,1586,1612]" captionStart-0="FIGURE 17" captionStart-1="FIGURE 18" captionStart-2="FIGURE 19" captionStart-3="FIGURE 20" captionStartId-0="44.[151,255,1936,1960]" captionStartId-1="45.[151,255,1907,1931]" captionStartId-2="46.[151,255,1917,1941]" captionStartId-3="47.[151,255,1949,1973]" captionTargetBox-0="[222,1399,192,1902]" captionTargetBox-1="[219,1355,190,1869]" captionTargetBox-2="[169,1421,190,1898]" captionTargetBox-3="[238,1402,189,1920]" captionTargetId-0="figure-53@44.[151,1436,154,1972]" captionTargetId-1="figure-74@45.[162,1427,126,1914]" captionTargetId-2="figure-58@46.[151,1436,146,1964]" captionTargetId-3="figure-40@47.[170,1424,158,1931]" captionTargetPageId-0="44" captionTargetPageId-1="45" captionTargetPageId-2="46" captionTargetPageId-3="47" captionText-0="FIGURE 17. Mesamphisopus setosus n. sp. A and B, holotype, remainder dissected male paratype. A, habitus, lateral view; B, dorsal view (uropods not figured, antennae incompletely illustrated); C, antennula; D, antenna; E, labrum; F, uropod." captionText-1="FIGURE 18. Mesamphisopus setosus n. sp. A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths." captionText-2="FIGURE 19. Mesamphisopus setosus n. sp. A–G, dissected male paratype. A, pereopod I, with enlarged view of propodal palm; B, pereopod II; C, pereopod III; D, pereopod IV; E, pereopod V; F, pereopod VI; G, pereopod VII (left)." captionText-3="FIGURE 20. Mesamphisopus setosus n. sp. A–E, dissected male paratype. A, pleopod I; B, pleopod II; C, pleopod III; D, pleopod IV; E, pleopod V." pageId="42" pageNumber="43">Figures 17–20</figureCitation>
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</paragraph>
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</subSubSection>
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||
<subSubSection id="C3716574502CFFE5FF0952DBFA61CB0D" pageId="42" pageNumber="43" type="materials_examined">
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<paragraph id="8BD436FF502CFFE5FF0952DBFDA4CA85" blockId="42.[151,1436,1666,2012]" pageId="42" pageNumber="43">
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<emphasis id="B91FEAED502CFFE5FF0952DBFE6ACAF5" bold="true" box="[151,400,1666,1692]" pageId="42" pageNumber="43">Material examined.</emphasis>
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<materialsCitation id="3B033CA2502CFFE5FE0252DBFDA4CA85" accessionNumber="A45155" collectingDate="2003-04-18" collectionCode="SAM, R" collectorName="G. Gouws & Gouws, S. & Daniels, A & S. Willows-Munro" country="South Africa" latitude="-34.013332" location="Guardian Peak" longLatPrecision="11" longitude="19.001167" municipality="Jonkershoek Nature Reserve" pageId="42" pageNumber="43" specimenCount="1" specimenCount-male="1" typeStatus="holotype">
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<emphasis id="B91FEAED502CFFE5FE0252DBFDE2CAF5" bold="true" box="[412,536,1666,1692]" pageId="42" pageNumber="43">
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<typeStatus id="54D0885D502CFFE5FE0252DBFDE8CAF5" box="[412,530,1666,1692]" pageId="42" pageNumber="43" type="holotype">Holotype</typeStatus>
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:
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</emphasis>
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<collectionCode id="ED7AAE3A502CFFE5FDBA52DBFD99CAF5" box="[548,611,1666,1692]" country="South Africa" httpUri="http://grbio.org/cool/mhew-9czz" name="South African Museum" pageId="42" pageNumber="43">SAM</collectionCode>
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A45155,
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<specimenCount id="9D6DFD76502CFFE5FD7C52DBFD0CCAFF" box="[738,758,1666,1686]" pageId="42" pageNumber="43" type="male">♂</specimenCount>
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(
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<quantity id="4C939B1A502CFFE5FC9452DBFC87CAF5" box="[778,893,1666,1692]" metricMagnitude="-2" metricUnit="m" metricValue="1.08" pageId="42" pageNumber="43" unit="mm" value="10.8">10.8 mm</quantity>
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), small pool in river, below
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<location id="8EB46024502CFFE5FB7C52DBFA62CAF5" LSID="urn:lsid:plazi:treatment:03C287E9502CFFFDFF095256FD26CFBB:8EB46024502CFFE5FB7C52DBFA62CAF5" box="[1250,1432,1666,1692]" country="South Africa" latitude="-34.013332" longLatPrecision="11" longitude="19.001167" municipality="Jonkershoek Nature Reserve" name="Guardian Peak" pageId="42" pageNumber="43">Guardian Peak</location>
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,
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<collectingMunicipality id="6BB0AC85502CFFE5FF0952F3FE12CAAD" box="[151,488,1706,1732]" pageId="42" pageNumber="43">Jonkershoek Nature Reserve</collectingMunicipality>
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,
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<collectingCountry id="F37C766F502CFFE5FE6A52F3FD73CAAD" box="[500,649,1706,1732]" name="South Africa" pageId="42" pageNumber="43">South Africa</collectingCountry>
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(
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<geoCoordinate id="EE5F5038502CFFE5FD0452F3FCDACAAD" box="[666,800,1706,1732]" degrees="34" direction="south" minutes="00.80" orientation="latitude" pageId="42" pageNumber="43" precision="9" value="-34.013332">34°00.80’S</geoCoordinate>
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<geoCoordinate id="EE5F5038502CFFE5FCB952F3FC4BCAAD" box="[807,945,1706,1732]" degrees="19" direction="east" minutes="00.07" orientation="longitude" pageId="42" pageNumber="43" precision="9" value="19.001167">19°00.07’E</geoCoordinate>
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||
), coll.
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||
<collectorName id="269E5329502CFFE5FB9E52F3FB8CCAAD" box="[1024,1142,1706,1732]" pageId="42" pageNumber="43">G. Gouws</collectorName>
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, S.
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<collectionCode id="ED7AAE3A502CFFE5FB0952F3FB4ACAAD" box="[1175,1200,1706,1732]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="42" pageNumber="43">R</collectionCode>
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||
.
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<collectorName id="269E5329502CFFE5FB2252F3FAC7CAAD" box="[1212,1341,1706,1732]" pageId="42" pageNumber="43">Daniels, A</collectorName>
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. Pardini and
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<collectorName id="269E5329502CFFE5FF56528BFE5CCA85" box="[200,422,1746,1772]" pageId="42" pageNumber="43">S. Willows-Munro</collectorName>
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,
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<date id="FFD5103F502CFFE5FE2C528BFDA0CA85" box="[434,602,1746,1772]" pageId="42" pageNumber="43" value="2003-04-18">
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<collectingDate id="EF91E9D7502CFFE5FE2C528BFDA0CA85" box="[434,602,1746,1772]" pageId="42" pageNumber="43" value="2003-04-18">18 April 2003</collectingDate>
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||
</date>
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||
.
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||
</materialsCitation>
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||
</paragraph>
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||
<paragraph id="8BD436FF502CFFE5FF5852A3FBA8CB55" blockId="42.[151,1436,1666,2012]" pageId="42" pageNumber="43">
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||
<materialsCitation id="3B033CA2502CFFE5FF5852A3FBB7CB55" accessionNumber="A45156" collectionCode="SAM" pageId="42" pageNumber="43" specimenCount="8" specimenCount-female="4" specimenCount-male="4" typeStatus="paratype">
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||
<emphasis id="B91FEAED502CFFE5FF5852A3FEB7CB7D" bold="true" box="[198,333,1786,1812]" pageId="42" pageNumber="43">
|
||
<typeStatus id="54D0885D502CFFE5FF5852A3FEB2CB7D" box="[198,328,1786,1812]" pageId="42" pageNumber="43" type="paratype">Paratypes</typeStatus>
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||
:
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||
</emphasis>
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||
<collectionCode id="ED7AAE3A502CFFE5FEC452A3FE63CB7D" box="[346,409,1786,1812]" country="South Africa" httpUri="http://grbio.org/cool/mhew-9czz" name="South African Museum" pageId="42" pageNumber="43">SAM</collectionCode>
|
||
A45156,
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||
<specimenCount id="9D6DFD76502CFFE5FD8652A3FDD6CB67" box="[536,556,1786,1806]" pageId="42" pageNumber="43" type="male">♂</specimenCount>
|
||
(
|
||
<quantity id="4C939B1A502CFFE5FDDF52A3FD48CB7D" box="[577,690,1786,1812]" metricMagnitude="-2" metricUnit="m" metricValue="1.14" pageId="42" pageNumber="43" unit="mm" value="11.4">11.4 mm</quantity>
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||
, dissected) and
|
||
<specimenCount id="9D6DFD76502CFFE5FCE552A3FC75CB67" box="[891,911,1786,1806]" pageId="42" pageNumber="43" type="female">♀</specimenCount>
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||
(brooding
|
||
<quantity id="4C939B1A502CFFE5FB8552A3FB76CB7D" box="[1051,1164,1786,1812]" metricMagnitude="-2" metricUnit="m" metricValue="1.05" pageId="42" pageNumber="43" unit="mm" value="10.5">10.5 mm</quantity>
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||
, dissected) parts slide mounted and in microvials, additional
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||
<specimenCount id="9D6DFD76502CFFE5FDC5537BFD7FCB5F" box="[603,645,1826,1852]" pageId="42" pageNumber="43" type="male">3 ♂</specimenCount>
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||
,
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||
<specimenCount id="9D6DFD76502CFFE5FD0A537BFD47CB5F" box="[660,701,1826,1852]" pageId="42" pageNumber="43" type="female">3 ♀</specimenCount>
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||
, collection details as for
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<typeStatus id="54D0885D502CFFE5FC7D537BFBB7CB55" box="[995,1101,1826,1852]" pageId="42" pageNumber="43" type="holotype">holotype</typeStatus>
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||
</materialsCitation>
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||
.
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||
</paragraph>
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||
<paragraph id="8BD436FF502CFFE5FF585313FA61CB0D" blockId="42.[151,1436,1666,2012]" box="[198,1435,1866,1892]" pageId="42" pageNumber="43">
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||
<materialsCitation id="3B033CA2502CFFE5FF585313FA6DCB0D" accessionNumber="A44939" box="[198,1431,1866,1892]" collectingDate="2001-03-12" collectionCode="SAM" collectorName="G. Gouws" country="South Africa" latitude="-34.013332" location="Guardian Peak" longLatPrecision="11" longitude="19.001167" municipality="Jonkershoek Nature Reserve" pageId="42" pageNumber="43" specimenCount="2" specimenCount-female="1" specimenCount-male="1">
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||
<emphasis id="B91FEAED502CFFE5FF585313FE76CB0D" bold="true" box="[198,396,1866,1892]" pageId="42" pageNumber="43">Other material:</emphasis>
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||
<collectionCode id="ED7AAE3A502CFFE5FE0D5313FE29CB0D" box="[403,467,1866,1892]" country="South Africa" httpUri="http://grbio.org/cool/mhew-9czz" name="South African Museum" pageId="42" pageNumber="43">SAM</collectionCode>
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||
A44939,
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<specimenCount id="9D6DFD76502CFFE5FDD95313FDA1CB37" box="[583,603,1866,1886]" pageId="42" pageNumber="43" type="male">♂</specimenCount>
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||
,
|
||
<specimenCount id="9D6DFD76502CFFE5FDF75313FD87CB37" box="[617,637,1866,1886]" pageId="42" pageNumber="43" type="female">♀</specimenCount>
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||
, collection locality as for holotype, coll.
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||
<collectorName id="269E5329502CFFE5FBC05313FB2ECB0D" box="[1118,1236,1866,1892]" pageId="42" pageNumber="43">G. Gouws</collectorName>
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||
,
|
||
<date id="FFD5103F502CFFE5FB7E5313FA6DCB0D" box="[1248,1431,1866,1892]" pageId="42" pageNumber="43" value="2001-03-12">
|
||
<collectingDate id="EF91E9D7502CFFE5FB7E5313FA6DCB0D" box="[1248,1431,1866,1892]" pageId="42" pageNumber="43" value="2001-03-12">12 March 2001</collectingDate>
|
||
</date>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3716574502CFFE5FF58532BFAD0CBE5" box="[198,1322,1906,1932]" pageId="42" pageNumber="43" type="etymology">
|
||
<paragraph id="8BD436FF502CFFE5FF58532BFAD0CBE5" blockId="42.[151,1436,1666,2012]" box="[198,1322,1906,1932]" pageId="42" pageNumber="43">
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||
<emphasis id="B91FEAED502CFFE5FF58532BFEA9CBE5" bold="true" box="[198,339,1906,1932]" pageId="42" pageNumber="43">Etymology.</emphasis>
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||
From the Latin “setosus”, in reference to the relatively abundant pereopod setation.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C3716574502CFFFEFF5853C3FB9BCA3B" lastPageId="49" lastPageNumber="50" pageId="42" pageNumber="43" type="diagnosis">
|
||
<paragraph id="8BD436FF502CFFE4FF5853C3FDFACEFB" blockId="42.[151,1436,1666,2012]" lastBlockId="43.[151,1436,152,2018]" lastPageId="43" lastPageNumber="44" pageId="42" pageNumber="43">
|
||
<emphasis id="B91FEAED502CFFE5FF5853C3FEBCCBDD" bold="true" box="[198,326,1946,1972]" pageId="42" pageNumber="43">Diagnosis.</emphasis>
|
||
Head lacking setae. Mandibular groove smoothly indented, more acutely indented anteriorly. Pereon setae short, length 0.05–0.08 body depth. Pleonites 1–4 width 1.21–1.24 composite length in dorsal view. Pleotelson dorsal surface with median ridge posteriorly between vaulted telson and apex; depth 1.77– 1.92 pereonite 7 depth; ventral margin anterior to uropods with single row of 4 or 5 simple RS, interspersed with fine, elongate setae; lateral uropodal ridge terminating at pleotelson margin above uropods; posterior apex with 1 pair of RS. Antennula short, length <0.13 body length. Mandibular palp article 3 with 27–32 setulate setae; additional setae on mesial surface. Maxillula mesial lobe with 4 accessory setae; lateral lobe distal margin with 4 smooth RS, 8 denticulate RS. Maxilla mesial lobe proximal and distal setal rows continuous; two parallel ventral basal setal rows present. Maxilliped palp article 4 shape elongate-oval; length:width 1.24. Pereopod I propodal palm with 9 stout serrate denticulate setae, 2 basally-inflated stout RS, 6 elongate broadbased setae; ischium dorsal margin with single RS. Pereopod III propodus length:width 2.20–2.25. Pereopods VI and VII length:body length> 0.50. Pereopods V–VII with PNS on dorsal ridge of basis of pereopod VII, dorsodistally on propodus of pereopods V–VII. Pleopodal endopod V shallowly cleft dorsomesially. Uropod total length 2.15 pleotelson length; protopod extending slightly posterior to pleotelson apex; endopod and exopod each with 10 or 11 RS.
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</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5856C6FA76CFEB" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
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||
<emphasis id="B91FEAED502DFFE4FF5856C6FE41CED0" bold="true" box="[198,443,671,697]" pageId="43" pageNumber="44">Descriptions. Male.</emphasis>
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||
<emphasis id="B91FEAED502DFFE4FE5856F9FDB4CED0" box="[454,590,672,697]" italics="true" pageId="43" pageNumber="44">Coloration.</emphasis>
|
||
Bodies lightly pigmented and light brown to orange-brown; less pigmented along pleotelson, lateral portions of pereonites, ventral parts of pleura of pleonites; darker pigmentation along dorsal longitudinal band, towards posterior margins of pereonites and pleonites; unpigmented patches along lateral portions of pereonites give body light mottled appearance; pereopods generally unpigmented and white, may have slight pigmentation on bases; some individuals wholly lacking pigmentation, white to off-white in colour; pigmentation fades to off-white to cream upon preservation, eyes remain black.
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</paragraph>
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||
<paragraph id="8BD436FF502DFFE4FF5B57C9FAB2CFC3" blockId="43.[151,1436,152,2018]" box="[197,1352,912,938]" pageId="43" pageNumber="44">
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||
<emphasis id="B91FEAED502DFFE4FF5B57C9FEFECFC0" box="[197,260,912,937]" italics="true" pageId="43" pageNumber="44">Head</emphasis>
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. Eyes projecting anteriorly; maximum diameter 0.10–0.12 head depth; approximately round.
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</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B57E1FCE2C823" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B57E1FEE2CFB8" box="[197,280,952,977]" italics="true" pageId="43" pageNumber="44">Pereon</emphasis>
|
||
width exceeding head width; setae on dorsal surface concentrated along posterior pereonite margins. Pereonite 1 length:width in dorsal view 0.41–0.45. Pereonite 2 length:width 0.42–0.54. Pereonite 3 length:width 0.49–0.59. Pereonite 4 length:width 0.48. Pereonite 5 length:width 0.41–0.45. Pereonite 6 length:width 0.39–0.43. Pereonite 7 length:width 0.21.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B5001FE38C883" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B5001FEC8C818" box="[197,306,1112,1137]" italics="true" pageId="43" pageNumber="44">Pleonites</emphasis>
|
||
2–4 respective lengths in dorsal view less than half the length of pleonite 5, 1–4 relative lengths unequal, increasing in length from anterior to posterior. Pleonites 1–5 dorsal length:maximum width of pleonites 1–5 respectively 0.16, 0.19, 0.20, 0.25 and 0.58. Pleonites 1–5 depth:pereonite 7 depth respectively 1.35, 1.92, 2.16, 2.23 and 2.00.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B50A1FCF1C953" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B50A1FEBAC978" box="[197,320,1272,1297]" italics="true" pageId="43" pageNumber="44">Pleotelson</emphasis>
|
||
dorsal surface in lateral view inflected ventrally, sparsely covered with fine setae; length 1.04– 1.10 width; lateral length less (0.78–0.79) than depth.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B5111FB10C9DB" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B5111FEC7C908" box="[197,317,1352,1377]" italics="true" pageId="43" pageNumber="44">Antennula</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A502DFFE4FED15111FE5EC90B" box="[335,420,1352,1378]" captionStart="FIGURE 17" captionStartId="44.[151,255,1936,1960]" captionTargetBox="[222,1399,192,1902]" captionTargetId="figure-53@44.[151,1436,154,1972]" captionTargetPageId="44" captionText="FIGURE 17. Mesamphisopus setosus n. sp. A and B, holotype, remainder dissected male paratype. A, habitus, lateral view; B, dorsal view (uropods not figured, antennae incompletely illustrated); C, antennula; D, antenna; E, labrum; F, uropod." pageId="43" pageNumber="44">Fig. 17</figureCitation>
|
||
) with 7 articles. Article 3 with antennal scale. 6 Or 7 tiny aesthetascs, 4 sensory setae on terminal article and along distal margin of subterminal article. Terminal article length:width 0.50–0.58. Penultimate article distinctly longer than other articles. Distal articles circular in cross-section.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B5199FD5FCA6B" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B5199FEDCC9B0" box="[197,294,1472,1497]" italics="true" pageId="43" pageNumber="44">Antenna</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A502DFFE4FEA95199FE71C9B3" box="[311,395,1472,1498]" captionStart="FIGURE 17" captionStartId="44.[151,255,1936,1960]" captionTargetBox="[222,1399,192,1902]" captionTargetId="figure-53@44.[151,1436,154,1972]" captionTargetPageId="44" captionText="FIGURE 17. Mesamphisopus setosus n. sp. A and B, holotype, remainder dissected male paratype. A, habitus, lateral view; B, dorsal view (uropods not figured, antennae incompletely illustrated); C, antennula; D, antenna; E, labrum; F, uropod." pageId="43" pageNumber="44">Fig. 17</figureCitation>
|
||
) length 0.65 body length; flagellum length 0.68 total antenna length, with 29–35 articles. Article 5 longer than or subequal to article 4.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B5249FC0DCAA3" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B5249FEB4CA40" box="[197,334,1552,1577]" italics="true" pageId="43" pageNumber="44">Mouthfield.</emphasis>
|
||
Clypeus widening and broadly triangular laterally; width 0.72 head width. Labrum (
|
||
<figureCitation id="13502A7A502DFFE4FAA35249FA69CA43" box="[1341,1427,1552,1578]" captionStart="FIGURE 17" captionStartId="44.[151,255,1936,1960]" captionTargetBox="[222,1399,192,1902]" captionTargetId="figure-53@44.[151,1436,154,1972]" captionTargetPageId="44" captionText="FIGURE 17. Mesamphisopus setosus n. sp. A and B, holotype, remainder dissected male paratype. A, habitus, lateral view; B, dorsal view (uropods not figured, antennae incompletely illustrated); C, antennula; D, antenna; E, labrum; F, uropod." pageId="43" pageNumber="44">Fig. 17</figureCitation>
|
||
) ventrally broad and truncate, with fringe of fine setae on distal margin laterally to slight apex; dorsal margin same width as clypeus. Paragnaths (
|
||
<figureCitation id="13502A7A502DFFE4FDD95239FD64CA13" box="[583,670,1632,1658]" captionStart="FIGURE 18" captionStartId="45.[151,255,1907,1931]" captionTargetBox="[219,1355,190,1869]" captionTargetId="figure-74@45.[162,1427,126,1914]" captionTargetPageId="45" captionText="FIGURE 18. Mesamphisopus setosus n. sp. A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths." pageId="43" pageNumber="44">Fig. 18</figureCitation>
|
||
) with distolaterally rounded lobes; with dense mat of fine setae from distal extent of lobes inwards along mesial margins; SS scattered along proximal mesial margins; lateral margin with dense mat of fine setae, discontinuous with apical setal rows.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFE4FF5B5281FE37CBFB" blockId="43.[151,1436,152,2018]" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B5281FECFCA98" box="[197,309,1752,1777]" italics="true" pageId="43" pageNumber="44">Mandible</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A502DFFE4FED85281FE66CA9B" box="[326,412,1752,1778]" captionStart="FIGURE 18" captionStartId="45.[151,255,1907,1931]" captionTargetBox="[219,1355,190,1869]" captionTargetId="figure-74@45.[162,1427,126,1914]" captionTargetPageId="45" captionText="FIGURE 18. Mesamphisopus setosus n. sp. A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths." pageId="43" pageNumber="44">Fig. 18</figureCitation>
|
||
) palp length 1.08–1.25 mandible length; article 1 with elongate SS distoventrally; article 2 with elongate SS along length ventrolaterally and ventromesially, separate distal groups of elongate setae laterally and ventrally; setae greater than half respective article length. Left spine row with 12 spines, 6 of which are bifurcate. Right spine row with 8 spines, 3 of which are bifurcate. Molar process length subequal to width or longer than wide.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF502DFFFFFF5B53F9FCEACCB3" blockId="43.[151,1436,152,2018]" lastBlockId="48.[151,1437,152,2018]" lastPageId="48" lastPageNumber="49" pageId="43" pageNumber="44">
|
||
<emphasis id="B91FEAED502DFFE4FF5B53F9FECDCBD0" box="[197,311,1952,1977]" italics="true" pageId="43" pageNumber="44">Maxillula</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A502DFFE4FED753F9FE5ACBD3" box="[329,416,1952,1978]" captionStart="FIGURE 18" captionStartId="45.[151,255,1907,1931]" captionTargetBox="[219,1355,190,1869]" captionTargetId="figure-74@45.[162,1427,126,1914]" captionTargetPageId="45" captionText="FIGURE 18. Mesamphisopus setosus n. sp. A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths." pageId="43" pageNumber="44">Fig. 18</figureCitation>
|
||
) mesial lobe length 0.50 lateral lobe length; width 0.54 lateral lobe width; accessory setae simple on distolateral margin, distally denticulate between central PPS and 2 distally denticulate between distomesial setae; 1 short weakly setulate seta on distal tip. Lateral lobe distal margin with 3 RS in distal setal row; ventral face with 2 widely spaced PS.
|
||
</paragraph>
|
||
<caption id="DF146677502AFFE3FF0953C9FF10CB85" pageId="44" pageNumber="45" startId="44.[151,255,1936,1960]" targetBox="[222,1399,192,1902]" targetPageId="44">
|
||
<paragraph id="8BD436FF502AFFE3FF0953C9FF10CB85" blockId="44.[151,1436,1936,2028]" pageId="44" pageNumber="45">
|
||
<emphasis id="B91FEAED502AFFE3FF0953C9FED2CBC1" bold="true" box="[151,296,1936,1960]" pageId="44" pageNumber="45">FIGURE 17.</emphasis>
|
||
<taxonomicName id="4C6B4D7C502AFFE3FEAE53C9FDCBCBCE" authority="Gouws, 2008" authorityName="Gouws" authorityYear="2008" box="[304,561,1936,1959]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="44" pageNumber="45" phylum="Arthropoda" rank="species" species="setosus" status="sp. nov.">
|
||
<emphasis id="B91FEAED502AFFE3FEAE53C9FDCBCBCE" box="[304,561,1936,1959]" italics="true" pageId="44" pageNumber="45">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B91FEAED502AFFE3FDA753C9FD8DCBC1" bold="true" box="[569,631,1936,1960]" pageId="44" pageNumber="45">
|
||
<taxonomicNameLabel id="A22C5796502AFFE3FDA753C9FD8DCBC1" box="[569,631,1936,1960]" pageId="44" pageNumber="45" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
A and B, holotype, remainder dissected male paratype. A, habitus, lateral view; B, dorsal view (uropods not figured, antennae incompletely illustrated); C, antennula; D, antenna; E, labrum; F, uropod.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF146677502BFFE2FF09532AFEE8CB9A" pageId="45" pageNumber="46" startId="45.[151,255,1907,1931]" targetBox="[219,1355,190,1869]" targetPageId="45">
|
||
<paragraph id="8BD436FF502BFFE2FF09532AFEE8CB9A" blockId="45.[151,1436,1907,2035]" pageId="45" pageNumber="46">
|
||
<emphasis id="B91FEAED502BFFE2FF09532AFEDDCBE2" bold="true" box="[151,295,1907,1931]" pageId="45" pageNumber="46">FIGURE 18.</emphasis>
|
||
<taxonomicName id="4C6B4D7C502BFFE2FEB0532DFDD4CBE2" authority="Gouws, 2008" authorityName="Gouws" authorityYear="2008" box="[302,558,1908,1931]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="45" pageNumber="46" phylum="Arthropoda" rank="species" species="setosus" status="sp. nov.">
|
||
<emphasis id="B91FEAED502BFFE2FEB0532DFDD4CBE2" box="[302,558,1908,1931]" italics="true" pageId="45" pageNumber="46">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B91FEAED502BFFE2FDAB532AFD88CBE2" bold="true" box="[565,626,1907,1931]" pageId="45" pageNumber="46">
|
||
<taxonomicNameLabel id="A22C5796502BFFE2FDAB532AFD88CBE2" box="[565,626,1907,1931]" pageId="45" pageNumber="46" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF1466775028FFE1FF095324FAA9CBD1" pageId="46" pageNumber="47" startId="46.[151,255,1917,1941]" targetBox="[169,1421,190,1898]" targetPageId="46">
|
||
<paragraph id="8BD436FF5028FFE1FF095324FAA9CBD1" blockId="46.[151,1436,1917,1976]" pageId="46" pageNumber="47">
|
||
<emphasis id="B91FEAED5028FFE1FF095324FEDCCBFC" bold="true" box="[151,294,1917,1941]" pageId="46" pageNumber="47">FIGURE 19.</emphasis>
|
||
<taxonomicName id="4C6B4D7C5028FFE1FEB05327FDD7CBFC" authority="Gouws, 2008" authorityName="Gouws" authorityYear="2008" box="[302,557,1918,1941]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="46" pageNumber="47" phylum="Arthropoda" rank="species" species="setosus" status="sp. nov.">
|
||
<emphasis id="B91FEAED5028FFE1FEB05327FDD7CBFC" box="[302,557,1918,1941]" italics="true" pageId="46" pageNumber="47">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B91FEAED5028FFE1FDAA5324FD8BCBFC" bold="true" box="[564,625,1917,1941]" pageId="46" pageNumber="47">
|
||
<taxonomicNameLabel id="A22C57965028FFE1FDAA5324FD8BCBFC" box="[564,625,1917,1941]" pageId="46" pageNumber="47" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
A–G, dissected male paratype. A, pereopod I, with enlarged view of propodal palm; B, pereopod II; C, pereopod III; D, pereopod IV; E, pereopod V; F, pereopod VI; G, pereopod VII (left).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF1466775029FFE0FF0953C4FE34CBB1" pageId="47" pageNumber="48" startId="47.[151,255,1949,1973]" targetBox="[238,1402,189,1920]" targetPageId="47">
|
||
<paragraph id="8BD436FF5029FFE0FF0953C4FE34CBB1" blockId="47.[151,1436,1949,2008]" pageId="47" pageNumber="48">
|
||
<emphasis id="B91FEAED5029FFE0FF0953C4FEDDCBDC" bold="true" box="[151,295,1949,1973]" pageId="47" pageNumber="48">FIGURE 20.</emphasis>
|
||
<taxonomicName id="4C6B4D7C5029FFE0FEB153C7FDD5CBDC" authority="Gouws, 2008" authorityName="Gouws" authorityYear="2008" box="[303,559,1950,1973]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="47" pageNumber="48" phylum="Arthropoda" rank="species" species="setosus" status="sp. nov.">
|
||
<emphasis id="B91FEAED5029FFE0FEB153C7FDD5CBDC" box="[303,559,1950,1973]" italics="true" pageId="47" pageNumber="48">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B91FEAED5029FFE0FDA853C4FD89CBDC" bold="true" box="[566,627,1949,1973]" pageId="47" pageNumber="48">
|
||
<taxonomicNameLabel id="A22C57965029FFE0FDA853C4FD89CBDC" box="[566,627,1949,1973]" pageId="47" pageNumber="48" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
A–E, dissected male paratype. A, pleopod I; B, pleopod II; C, pleopod III; D, pleopod IV; E, pleopod V.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BD436FF5036FFFFFF5B54B1FAC9CDCB" blockId="48.[151,1437,152,2018]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B54B1FEDACD68" box="[197,288,232,257]" italics="true" pageId="48" pageNumber="49">Maxilla</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFEAD54B1FE71CD6B" box="[307,395,232,258]" captionStart="FIGURE 18" captionStartId="45.[151,255,1907,1931]" captionTargetBox="[219,1355,190,1869]" captionTargetId="figure-74@45.[162,1427,126,1914]" captionTargetPageId="45" captionText="FIGURE 18. Mesamphisopus setosus n. sp. A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths." pageId="48" pageNumber="49">Fig. 18</figureCitation>
|
||
) mesial lobe width 0.74 outer lateral lobe width; proximal portion distinctly angled to distal portion; 24 elongate, finely serrate setae in ventral basal setal rows; 36 closely-set elongate setae with distinct bases and thick shafts in dorsal basal row; 30 SS, PS and PCS, of which 4 are more robust PCS, in multiple distal rows. Outer lateral lobe longer than inner lateral lobe, wider than inner lateral lobe; distal margin with 19 long bidenticulate setae. Inner lateral lobe distal margin with 14 long bidenticulate setae.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFFFF5B55E9FD78CE03" blockId="48.[151,1437,152,2018]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B55E9FEBECDA0" box="[197,324,432,457]" italics="true" pageId="48" pageNumber="49">Maxilliped</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFEC855E9FE56CDA3" box="[342,428,432,458]" captionStart="FIGURE 18" captionStartId="45.[151,255,1907,1931]" captionTargetBox="[219,1355,190,1869]" captionTargetId="figure-74@45.[162,1427,126,1914]" captionTargetPageId="45" captionText="FIGURE 18. Mesamphisopus setosus n. sp. A–J, dissected male paratype. A, right mandible; B, right mandibular palp; C, right mandible spine row and incisor process; D, left mandible; E, left mandible spine row and lacinia mobilis; F, maxillula, with enlarged view of lateral lobe distal margin; G, maxilla; H, maxilliped, dorsal view; I, maxilla, ventral view; J, paragnaths." pageId="48" pageNumber="49">Fig. 18</figureCitation>
|
||
) epipod length:width 1.15. Endite length:total basis length 0.37–0.41; mesial margin with 2 coupling hooks on left side, 4 on right side; dorsal ridge with 20 large distally denticulate PS. Palp insertion on basis mesial margin with 1 SS; ventral surface with 1 elongate distally plumose or pectinate seta subdistally towards mesial margin; palp width across articles 2 and 3:endite width 1.81; article 5 length:width 1.57, article 5 length:article 4 length 0.71.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFFFF5B5621FF23CFEB" blockId="48.[151,1437,152,2018]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B5621FEAACEF8" box="[197,336,632,657]" italics="true" pageId="48" pageNumber="49">Pereopod I</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFEF75621FE3DCEFB" box="[361,455,632,658]" captionStart="FIGURE 19" captionStartId="46.[151,255,1917,1941]" captionTargetBox="[169,1421,190,1898]" captionTargetId="figure-58@46.[151,1436,146,1964]" captionTargetPageId="46" captionText="FIGURE 19. Mesamphisopus setosus n. sp. A–G, dissected male paratype. A, pereopod I, with enlarged view of propodal palm; B, pereopod II; C, pereopod III; D, pereopod IV; E, pereopod V; F, pereopod VI; G, pereopod VII (left)." pageId="48" pageNumber="49">Fig. 19</figureCitation>
|
||
) length:body length 0.48. Dactylus length subequal to or longer than palm, length:palm length 1.57; ventrodistal margin with thin scale-like spines along 0.16 total length; claw length:dactylus length 0.11; distal accessory claw length 0.25 primary claw length. Propodus length:width 1.18–1.22; dorsal margin with 6 setae confined to single distal group. Propodal palm cuticular fringe well developed; with low stout cuticular projection distally. Merus distodorsal margin includes 1 RS. Basis length:width 2.05; dorsal margin with 4 setae, mostly proximally; ventrodistal margin with 2 or 3 elongate setae.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFFFF5B57C9FD81C883" blockId="48.[151,1437,152,2018]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B57C9FE40CFC0" box="[197,442,912,937]" italics="true" pageId="48" pageNumber="49">Pereopods II and III</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFE5357C9FDDCCFC3" box="[461,550,912,938]" captionStart="FIGURE 19" captionStartId="46.[151,255,1917,1941]" captionTargetBox="[169,1421,190,1898]" captionTargetId="figure-58@46.[151,1436,146,1964]" captionTargetPageId="46" captionText="FIGURE 19. Mesamphisopus setosus n. sp. A–G, dissected male paratype. A, pereopod I, with enlarged view of propodal palm; B, pereopod II; C, pereopod III; D, pereopod IV; E, pereopod V; F, pereopod VI; G, pereopod VII (left)." pageId="48" pageNumber="49">Fig. 19</figureCitation>
|
||
;
|
||
<tableCitation id="C6E903445036FFFFFDAB57C9FD76CFC3" box="[565,652,912,938]" captionStart="TABLE 1" captionStartId="16.[151,241,151,175]" captionText="TABLE 1. Comparison of various ratios from the undifferentiated anterior pereopods (II and III) among the six Mesamphisopus species described herein. Ratios for males (M) and females (F) are indicated separately. Missing data are indicated by “n.d.”" pageId="48" pageNumber="49">Table 1</tableCitation>
|
||
) dactylus with few fine setae; distal accessory claw length 0.30– 0.50 primary claw length. Pereopod II propodus and carpus each with 5 broad-based setae, evenly spaced along ventral margins, setae 0.08–0.36 respective propodus and carpus lengths. Pereopod III propodus with 4 broad-based setae on ventral margin, distal seta separated by gap from evenly spaced proximal setae, setae 0.15–0.28 propodus length, 3 shorter (0.06 propodus length) broad-based setae lateral to margin; carpus with 6 broad-based setae, evenly spaced along ventral margin with distal pair more closely set, setae 0.14–0.36 carpus length. Basis dorsal ridge in cross-section angular and produced but not forming distinct plate, with 8–12 elongate SS along margin. Pereopods II–IV ischium dorsal margin with 9 SS, including 2 or 3 RS. Pereopod III with single PNS on basis dorsal ridge.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFFFF5B50A1FC4AC9B3" blockId="48.[151,1437,152,2018]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B50A1FEA6C978" box="[197,348,1272,1297]" italics="true" pageId="48" pageNumber="49">Pereopod IV</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFEF050A1FE3FC97B" box="[366,453,1272,1298]" captionStart="FIGURE 19" captionStartId="46.[151,255,1917,1941]" captionTargetBox="[169,1421,190,1898]" captionTargetId="figure-58@46.[151,1436,146,1964]" captionTargetPageId="46" captionText="FIGURE 19. Mesamphisopus setosus n. sp. A–G, dissected male paratype. A, pereopod I, with enlarged view of propodal palm; B, pereopod II; C, pereopod III; D, pereopod IV; E, pereopod V; F, pereopod VI; G, pereopod VII (left)." pageId="48" pageNumber="49">Fig. 19</figureCitation>
|
||
) with PNS on dorsal and ventral margins of basis. Dactylus longer than propodal palm; distal accessory claw length 0.25 primary claw length. Propodus length:pereopod length 0.15; length:width 1.59; distal width:palm width 0.69; with 6 broad-based setae on ventral margin, 3 distinctly larger than remainder; articular plate subequal in length to dactylar claw. Carpus length:pereopod length 0.11; with 5 broad-based setae on ventral margin, 3 distinctly larger than others. Ischium posterodistal margin with 7–9 setae. Basis length:width 2.11; dorsal ridge with 15 or 16 setae.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFFFF5B51B1FDA3CACB" blockId="48.[151,1437,152,2018]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B51B1FE74CA68" box="[197,398,1512,1537]" italics="true" pageId="48" pageNumber="49">Pereopods V–VII</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFE0051B1FE0ECA6B" box="[414,500,1512,1538]" captionStart="FIGURE 19" captionStartId="46.[151,255,1917,1941]" captionTargetBox="[169,1421,190,1898]" captionTargetId="figure-58@46.[151,1436,146,1964]" captionTargetPageId="46" captionText="FIGURE 19. Mesamphisopus setosus n. sp. A–G, dissected male paratype. A, pereopod I, with enlarged view of propodal palm; B, pereopod II; C, pereopod III; D, pereopod IV; E, pereopod V; F, pereopod VI; G, pereopod VII (left)." pageId="48" pageNumber="49">Fig. 19</figureCitation>
|
||
;
|
||
<tableCitation id="C6E903445036FFFFFD9E51B1FDADCA6B" box="[512,599,1512,1538]" captionStart="TABLE 2" captionStartId="17.[151,241,762,786]" captionText="TABLE 2. Comparison of various ratios from the posterior pereopods (V–VII) among the six Mesamphisopus species described herein. Ratios for males (M) and females (F) are indicated separately. Missing data are indicated by “n.d.”" pageId="48" pageNumber="49">Table 2</tableCitation>
|
||
) dactylus distal accessory claw ventral or ventrolateral to primary claw, length 0.20–0.42 primary claw length. Propodus distal margins with 6 or 7 RS, including 3 or 4 elongate RS. Pereopods V–VII ischium dorsal margin with 2–4 SS, including 2 or 3 RS. Basis dorsal ridge in cross-section angular on V, produced and forming distinct plate on VI and VII, with elongate fine setae along and lateral to margin; lateral face with ventral ridge.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFFFF5B52E9FB62CAA3" blockId="48.[151,1437,152,2018]" box="[197,1176,1712,1738]" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B52E9FEF1CAA0" box="[197,267,1712,1737]" italics="true" pageId="48" pageNumber="49">Penes</emphasis>
|
||
length 0.39 body width at pereonite 7; with setae on shaft; distal tip rounded.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5036FFFEFF5B5281FB23CCDB" blockId="48.[151,1437,152,2018]" lastBlockId="49.[151,1437,152,2018]" lastPageId="49" lastPageNumber="50" pageId="48" pageNumber="49">
|
||
<emphasis id="B91FEAED5036FFFFFF5B5281FEC8CA98" box="[197,306,1752,1777]" italics="true" pageId="48" pageNumber="49">Pleopods</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5036FFFFFEDB5281FE65CA9B" box="[325,415,1752,1778]" captionStart="FIGURE 20" captionStartId="47.[151,255,1949,1973]" captionTargetBox="[238,1402,189,1920]" captionTargetId="figure-40@47.[170,1424,158,1931]" captionTargetPageId="47" captionText="FIGURE 20. Mesamphisopus setosus n. sp. A–E, dissected male paratype. A, pleopod I; B, pleopod II; C, pleopod III; D, pleopod IV; E, pleopod V." pageId="48" pageNumber="49">Fig. 20</figureCitation>
|
||
;
|
||
<tableCitation id="C6E903445036FFFFFE305281FDF3CA9B" box="[430,521,1752,1778]" captionStart="TABLE 3" captionStartId="18.[151,241,980,1004]" captionText="TABLE 3. Comparison of various pleopod I–V ratios among the six Mesamphisopus species described herein. Ratios for males (M) and females (F) are indicated separately. Missing data are indicated by “n.d.”" pageId="48" pageNumber="49">Table 3</tableCitation>
|
||
). Endopod I–IV margins with PS and SS, V with SS only. Protopod mesial margins/epipods I–IV with 5, 4, 3 and 2 coupling hooks, respectively; II–V with 1, 5, 6 and 9 or 10 elongate inflexible SS, respectively. Protopod lateral epipod III length 1.93–2.13 width, lateral epipod V length 1.73– 1.81 width. Protopods lateral margin of pleopod I with 3 or 4 elongate inflexible SS; lateral epipods III–V with 25, 31 and 30 or 31 elongate inflexible SS on margins, respectively. Pleopod I exopod broadest proximally, mesial margin straight, dorsal surface with setae; protopod length subequal to that of other pleopods, width subequal length. Pleopod II endopod appendix masculina basal musculature pronounced; with 34 setae on margin; length 0.47 pleopod length; distal tip extending beyond distal margin of endopod.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5499FD8CCD3B" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5499FEE5CCB0" box="[197,287,192,217]" italics="true" pageId="49" pageNumber="50">Uropod</emphasis>
|
||
(
|
||
<figureCitation id="13502A7A5037FFFEFEAF5499FE7DCCB3" box="[305,391,192,218]" captionStart="FIGURE 17" captionStartId="44.[151,255,1936,1960]" captionTargetBox="[222,1399,192,1902]" captionTargetId="figure-53@44.[151,1436,154,1972]" captionTargetPageId="44" captionText="FIGURE 17. Mesamphisopus setosus n. sp. A and B, holotype, remainder dissected male paratype. A, habitus, lateral view; B, dorsal view (uropods not figured, antennae incompletely illustrated); C, antennula; D, antenna; E, labrum; F, uropod." pageId="49" pageNumber="50">Fig. 17</figureCitation>
|
||
) protopod length:width 3.18; length 0.40 uropod total length; dorsomesial ridge weakly produced, plate-like, ridge length:endopod length 0.50. Rami (in cross-section) flattened on dorsal surface only. Endopod dorsal margin with 10 RS along length and apically. Exopod length 0.82 endopod length; with 11 RS along dorsal margins and apically.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5506FC8ECD13" blockId="49.[151,1437,152,2018]" box="[197,884,351,378]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5506FEDDCD10" bold="true" box="[197,295,351,377]" pageId="49" pageNumber="50">Female.</emphasis>
|
||
<emphasis id="B91FEAED5037FFFEFEB15539FE8DCD10" box="[303,375,352,377]" italics="true" pageId="49" pageNumber="50">Head.</emphasis>
|
||
Cervical groove more curved than in male.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B55D1FBAFCDA3" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B55D1FEDBCDC8" box="[197,289,392,417]" italics="true" pageId="49" pageNumber="50">Pereon.</emphasis>
|
||
Pereonite 1 length:width in dorsal view 0.35–0.38. Pereonite 2 length:width 0.51–0.54. Pereonite 4 length:width 0.43. Pereonite 5 length:width 0.33. Pereonite 6 length:width 0.35.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5581FD64CE73" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5581FEC8CD98" box="[197,306,472,497]" italics="true" pageId="49" pageNumber="50">Pleonites</emphasis>
|
||
2 and 3 respective lengths in dorsal view less than half the length of pleonite 5, pleonite 4 equal to or more than half the length of pleonite 5.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5671FE73CEFB" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5671FEBACE28" box="[197,320,552,577]" italics="true" pageId="49" pageNumber="50">Pleotelson</emphasis>
|
||
ventral margin anterior to uropods with single row of 5 or 6 simple RS, interspersed with elongate, fine setae, posterior seta generally longer than anterior adjacent setae with shorter RS placed between 2 most posterior setae.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B56F9FEACCE8B" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B56F9FEBCCED0" box="[197,326,672,697]" italics="true" pageId="49" pageNumber="50">Antennula.</emphasis>
|
||
Terminal article with 4 aesthetascs. Penultimate article length subequal to or less than length of other articles.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B56A9FC61CF63" blockId="49.[151,1437,152,2018]" box="[197,923,752,778]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B56A9FED5CF60" box="[197,303,752,777]" italics="true" pageId="49" pageNumber="50">Antenna.</emphasis>
|
||
Article 5 length subequal to or shorter than article 4.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5741FCB9CF93" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5741FEB2CF58" box="[197,328,792,817]" italics="true" pageId="49" pageNumber="50">Pereopod I</emphasis>
|
||
length:body length 0.39. Dactylus ventrodistal margin with thin scale-like spines along 0.38 total length; claw length:dactylus length 0.15. Propodus length:width 1.25–1.27; dorsal margin with setae along length. Propodal palm concave; without low, cuticular projection/process of male; with 10 serrate and bifid denticulate stout setae, 5 elongate broad-based setae. Merus distodorsal margin includes 1–3 RS. Ischium dorsal margin without setae. Basis length:width 2.07; dorsal margin with 3 setae along ridge; ventrodistal margin with 4 elongate setae, 2 more elongate than others.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5051FC90C8AB" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5051FE4FC848" box="[197,437,1032,1057]" italics="true" pageId="49" pageNumber="50">Pereopods II and III</emphasis>
|
||
(
|
||
<tableCitation id="C6E903445037FFFEFE5B5051FDE7C84B" box="[453,541,1032,1058]" captionStart="TABLE 1" captionStartId="16.[151,241,151,175]" captionText="TABLE 1. Comparison of various ratios from the undifferentiated anterior pereopods (II and III) among the six Mesamphisopus species described herein. Ratios for males (M) and females (F) are indicated separately. Missing data are indicated by “n.d.”" pageId="49" pageNumber="50">Table 1</tableCitation>
|
||
). Single PNS present on ventral margin of basis of pereopod II. Pereopod II propodus with 4 broad-based setae; carpus broad-based setae up to 0.41 carpus length. Pereopod III propodus with 3 broad-based setae, closely set pair near ventral margin midpoint, third between proximal margin and midpoint, setae 0.09–0.25 propodus length; carpus with 4 broad-based setae evenly spaced on ventral margin and 3 closely set distolaterally, setae up to 0.43 carpus length.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5089FBC0C90B" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5089FEA2C880" box="[197,344,1232,1257]" italics="true" pageId="49" pageNumber="50">Pereopod IV</emphasis>
|
||
approaching prehensile condition. PNS on dorsal margin of basis and anterodorsal margin of carpus. Dactylus distal accessory claw length 0.33 primary claw length. Propodus length:pereopod length 0.11; length:width 1.83. Propodus with 1 broad-based seta on ventral margin. Ischium posterodistal margin with 4 setae ventrolaterally. Basis length:width 2.37; dorsal ridge with 11 setae.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5129FC26C9E3" blockId="49.[151,1437,152,2018]" box="[197,988,1392,1418]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5129FE6CC9E0" box="[197,406,1392,1417]" italics="true" pageId="49" pageNumber="50">Pereopods V–VII.</emphasis>
|
||
Consult
|
||
<tableCitation id="C6E903445037FFFEFD9E5129FDADC9E3" box="[512,599,1392,1418]" captionStart="TABLE 2" captionStartId="17.[151,241,762,786]" captionText="TABLE 2. Comparison of various ratios from the posterior pereopods (V–VII) among the six Mesamphisopus species described herein. Ratios for males (M) and females (F) are indicated separately. Missing data are indicated by “n.d.”" pageId="49" pageNumber="50">Table 2</tableCitation>
|
||
for comparison with male ratios.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B51C1FF25CA43" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B51C1FEC8C9D8" box="[197,306,1432,1457]" italics="true" pageId="49" pageNumber="50">Pleopods</emphasis>
|
||
(
|
||
<tableCitation id="C6E903445037FFFEFEDB51C1FE58C9DB" box="[325,418,1432,1458]" captionStart="TABLE 3" captionStartId="18.[151,241,980,1004]" captionText="TABLE 3. Comparison of various pleopod I–V ratios among the six Mesamphisopus species described herein. Ratios for males (M) and females (F) are indicated separately. Missing data are indicated by “n.d.”" pageId="49" pageNumber="50">Table 3</tableCitation>
|
||
). Protopod mesial margins/epipods I–IV with 2, 1, 1 and 1 coupling hooks, respectively; II–V with 3, 6, 6 and 9 elongate inflexible SS, respectively. Protopod lateral margin of pleopod I with 3 elongate inflexible SS; lateral epipods III–V with 21, 29 and 23 elongate inflexible SS on margins, respectively.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFEFF5B5261FB9BCA3B" blockId="49.[151,1437,152,2018]" box="[197,1121,1592,1618]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5261FEE5CA38" box="[197,287,1592,1617]" italics="true" pageId="49" pageNumber="50">Uropod</emphasis>
|
||
protopod length:width 3.54. Endopod with 11 RS; exopod with 10 RS.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37165745037FFFEFF5B5206FB2ECA9B" pageId="49" pageNumber="50" type="distribution">
|
||
<paragraph id="8BD436FF5037FFFEFF5B5206FB2ECA9B" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B5206FE9CCA10" bold="true" box="[197,358,1631,1657]" pageId="49" pageNumber="50">Distribution.</emphasis>
|
||
Known only from the
|
||
<typeStatus id="54D0885D5037FFFEFD1D5239FD4FCA13" box="[643,693,1632,1658]" pageId="49" pageNumber="50">type</typeStatus>
|
||
locality, below Guardian Peak, Jonkershoek Nature Reserve. The
|
||
<typeStatus id="54D0885D5037FFFEFF5252D1FF04CACB" box="[204,254,1672,1698]" pageId="49" pageNumber="50">type</typeStatus>
|
||
locality is a small pool (approximately
|
||
<quantity id="4C939B1A5037FFFEFD4A52D1FCEDCACB" box="[724,791,1672,1698]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="49" pageNumber="50" unit="m" value="0.5">0.5 m</quantity>
|
||
in diameter) at high altitude (
|
||
<quantity id="4C939B1A5037FFFEFBE852D1FB28CACB" box="[1142,1234,1672,1698]" metricMagnitude="3" metricUnit="m" metricValue="1.0879999999999999" pageId="49" pageNumber="50" unit="m" value="1088.0">1088 m</quantity>
|
||
) at the top of the catchment, where the valley is broad and not yet incised. Individuals were found in the acidic (pH 4.5), tannin-stained water, among matted plant roots and coarse gravel along the margins of the pool.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37165745037FFFDFF5B52A6FD26CFBB" lastPageId="50" lastPageNumber="51" pageId="49" pageNumber="50" type="discussion">
|
||
<paragraph id="8BD436FF5037FFFEFF5B52A6FBF3CB03" blockId="49.[151,1437,152,2018]" pageId="49" pageNumber="50">
|
||
<emphasis id="B91FEAED5037FFFEFF5B52A6FEC4CB70" bold="true" box="[197,318,1791,1817]" pageId="49" pageNumber="50">Remarks.</emphasis>
|
||
<taxonomicName id="4C6B4D7C5037FFFEFED65359FD99CB70" authorityName="Gouws" authorityYear="2008" box="[328,611,1792,1817]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="setosus">
|
||
<emphasis id="B91FEAED5037FFFEFED65359FD99CB70" box="[328,611,1792,1817]" italics="true" pageId="49" pageNumber="50">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
is characterized by being lightly pigmented, and by having an abundance of robust setae on the pereopods. The relative length of the uropod, being twice as long as the pleotelson, is diagnostic for this species and is the longest within
|
||
<taxonomicName id="4C6B4D7C5037FFFEFCDB5309FBF8CB00" authorityName=": Nicholls" authorityYear="1943" box="[837,1026,1872,1897]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91FEAED5037FFFEFCDB5309FBF8CB00" box="[837,1026,1872,1897]" italics="true" pageId="49" pageNumber="50">Mesamphisopus</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5037FFFDFF5B5321FC3DCD13" blockId="49.[151,1437,152,2018]" lastBlockId="50.[151,1437,152,978]" lastPageId="50" lastPageNumber="51" pageId="49" pageNumber="50">
|
||
Further features of the mouthparts, particularly the maxillula and maxilla, are also diagnostic for this species. Four accessory setae are found amongst the four pappose setae on the distal and distomesial margin of the mesial lobe of the maxillula of
|
||
<taxonomicName id="4C6B4D7C5037FFFEFDA85391FD49CB88" authorityName="Gouws" authorityYear="2008" box="[566,691,1992,2017]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="49" pageNumber="50" phylum="Arthropoda" rank="species" species="setosus">
|
||
<emphasis id="B91FEAED5037FFFEFDA85391FD49CB88" box="[566,691,1992,2017]" italics="true" pageId="49" pageNumber="50">M. setosus</emphasis>
|
||
</taxonomicName>
|
||
. The remaining five species described herein possess only two accessory setae. Two accessory setae also occur in
|
||
<taxonomicName id="4C6B4D7C5034FFFDFD7254C1FC61CCD8" baseAuthorityName="Barnard" baseAuthorityYear="1927" box="[748,923,152,177]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="abbreviatus">
|
||
<emphasis id="B91FEAED5034FFFDFD7254C1FC61CCD8" box="[748,923,152,177]" italics="true" pageId="50" pageNumber="51">M. abbreviatus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C6B4D7C5034FFFDFC4A54C1FB97CCD8" baseAuthorityName="Barnard" baseAuthorityYear="1927" box="[980,1133,152,177]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="depressus">
|
||
<emphasis id="B91FEAED5034FFFDFC4A54C1FB97CCD8" box="[980,1133,152,177]" italics="true" pageId="50" pageNumber="51">M. depressus</emphasis>
|
||
</taxonomicName>
|
||
, and two or three (among four or five pappose setae) occur in
|
||
<taxonomicName id="4C6B4D7C5034FFFDFDA65499FD3ECCB0" baseAuthorityName="Barnard" baseAuthorityYear="1914" box="[568,708,192,217]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="capensis">
|
||
<emphasis id="B91FEAED5034FFFDFDA65499FD3ECCB0" box="[568,708,192,217]" italics="true" pageId="50" pageNumber="51">M. capensis</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation id="EFFA4B0E5034FFFDFD4C5499FC8DCCB3" author="Barnard, K. H." box="[722,887,192,218]" pageId="50" pageNumber="51" pagination="231 - 240" refId="ref28906" refString="Barnard, K. H. (1914) Contributions to the crustacean fauna of South Africa. 2. Description of a new species of Phreatoicus (Isopoda) from South Africa. Annals of the South African Museum, 10, 231 - 240." type="journal article" year="1914">Barnard 1914</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFFA4B0E5034FFFDFC1C5499FBD1CCB3" author="Nicholls, G. E." box="[898,1067,192,218]" pageId="50" pageNumber="51" pagination="1 - 145" refId="ref29765" refString="Nicholls, G. E. (1943) The Phreatoicoidea. Part I. The Amphisopidae. Papers and Proceedings of the Royal Society of Tasmania, 1942, 1 - 145." type="journal article" year="1943">Nicholls 1943</bibRefCitation>
|
||
). The ventral basal setal row on the maxilla mesial lobe is represented by a double row of setae in
|
||
<taxonomicName id="4C6B4D7C5034FFFDFC2754B1FBCDCD68" authorityName="Gouws" authorityYear="2008" box="[953,1079,232,257]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="setosus">
|
||
<emphasis id="B91FEAED5034FFFDFC2754B1FBCDCD68" box="[953,1079,232,257]" italics="true" pageId="50" pageNumber="51">M. setosus</emphasis>
|
||
</taxonomicName>
|
||
, as in
|
||
<taxonomicName id="4C6B4D7C5034FFFDFB1454B1FF25CD43" authority="(Nicholls 1943)" baseAuthorityName="Nicholls" baseAuthorityYear="1943" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="depressus">
|
||
<emphasis id="B91FEAED5034FFFDFB1454B1FADFCD68" box="[1162,1317,232,257]" italics="true" pageId="50" pageNumber="51">M. depressus</emphasis>
|
||
(
|
||
<bibRefCitation id="EFFA4B0E5034FFFDFAA954B1FF2CCD43" author="Nicholls, G. E." pageId="50" pageNumber="51" pagination="1 - 145" refId="ref29765" refString="Nicholls, G. E. (1943) The Phreatoicoidea. Part I. The Amphisopidae. Papers and Proceedings of the Royal Society of Tasmania, 1942, 1 - 145." type="journal article" year="1943">Nicholls 1943</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. Only a single row is present in other species of the genus. More setae (24) are included in these ventral basal setal rows than in those of the other species. The proximal and distal setal rows of the mesial margin are also continuous, whereas they are separated by a gap in other species.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5034FFFDFF5B55D1FBE9CE73" blockId="50.[151,1437,152,978]" pageId="50" pageNumber="51">
|
||
The setation of uropodal rami is generally variable and is regarded as an inconsistent character (
|
||
<bibRefCitation id="EFFA4B0E5034FFFDFAA855D1FF2CCDA3" author="Nicholls, G. E." pageId="50" pageNumber="51" pagination="1 - 145" refId="ref29765" refString="Nicholls, G. E. (1943) The Phreatoicoidea. Part I. The Amphisopidae. Papers and Proceedings of the Royal Society of Tasmania, 1942, 1 - 145." type="journal article" year="1943">Nicholls 1943</bibRefCitation>
|
||
). Nontheless, this too appears to distinguish
|
||
<taxonomicName id="4C6B4D7C5034FFFDFD7955E9FC99CDA0" authorityName="Gouws" authorityYear="2008" box="[743,867,432,457]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="setosus">
|
||
<emphasis id="B91FEAED5034FFFDFD7955E9FC99CDA0" box="[743,867,432,457]" italics="true" pageId="50" pageNumber="51">M. setosus</emphasis>
|
||
</taxonomicName>
|
||
: up to ten robust setae occur on the dorsal margins of both the endopod and exopod. This number of setae is approached only in
|
||
<taxonomicName id="4C6B4D7C5034FFFDFBE65581FB0DCD98" authorityName="Gouws" authorityYear="2008" box="[1144,1271,472,497]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="albidus">
|
||
<emphasis id="B91FEAED5034FFFDFBE65581FB0DCD98" box="[1144,1271,472,497]" italics="true" pageId="50" pageNumber="51">M. albidus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C6B4D7C5034FFFDFAAB5581FF20CE70" authorityName="Gouws" authorityYear="2008" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="paludosus">
|
||
<emphasis id="B91FEAED5034FFFDFAAB5581FF20CE70" italics="true" pageId="50" pageNumber="51">M. paludosus</emphasis>
|
||
</taxonomicName>
|
||
, where a similar number of robust setae is found on the endopod only.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5034FFFDFF5B5671FEB3CF33" blockId="50.[151,1437,152,978]" pageId="50" pageNumber="51">
|
||
<taxonomicName id="4C6B4D7C5034FFFDFF5B5671FE1BCE28" authorityName="Gouws" authorityYear="2008" box="[197,481,552,577]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="setosus">
|
||
<emphasis id="B91FEAED5034FFFDFF5B5671FE1BCE28" box="[197,481,552,577]" italics="true" pageId="50" pageNumber="51">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
shows its closest morphological affinity to
|
||
<emphasis id="B91FEAED5034FFFDFC6E5671FB82CE28" box="[1008,1144,552,577]" italics="true" pageId="50" pageNumber="51">
|
||
<taxonomicName id="4C6B4D7C5034FFFDFC6E5671FB8ECE28" authorityName="Gouws" authorityYear="2008" box="[1008,1140,552,577]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="albidus">M. albidus</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
Both species are lightly pigmented or unpigmented and are similarly setose along the pereon and pleotelson. Both have a weak median ridge posteriorly on the pleotelson (just anterior to the apex) and lack the dorsal sub-apical robust setal pair. They also have a well developed, low, stout cuticular projection distally along the propodal palm of pereopod I (a feature seen too in
|
||
<taxonomicName id="4C6B4D7C5034FFFDFE3F5691FDAECE88" authorityName="Gouws" authorityYear="2008" box="[417,596,712,737]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="tsitsikamma">
|
||
<emphasis id="B91FEAED5034FFFDFE3F5691FDAECE88" box="[417,596,712,737]" italics="true" pageId="50" pageNumber="51">M. tsitsikamma</emphasis>
|
||
</taxonomicName>
|
||
), and have a similar extension of the appendix masculina.
|
||
<taxonomicName id="4C6B4D7C5034FFFDFB605691FEE1CF60" authorityName="Gouws" authorityYear="2008" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="setosus">
|
||
<emphasis id="B91FEAED5034FFFDFB605691FEE1CF60" italics="true" pageId="50" pageNumber="51">Mesamphisopus setosus</emphasis>
|
||
</taxonomicName>
|
||
can, however, be distinguished from
|
||
<taxonomicName id="4C6B4D7C5034FFFDFD5156A9FCB6CF60" authorityName="Gouws" authorityYear="2008" box="[719,844,752,777]" class="Malacostraca" family="Mesamphisopidae" genus="Mesamphisopus" kingdom="Animalia" order="Isopoda" pageId="50" pageNumber="51" phylum="Arthropoda" rank="species" species="albidus">
|
||
<emphasis id="B91FEAED5034FFFDFD5156A9FCB6CF60" box="[719,844,752,777]" italics="true" pageId="50" pageNumber="51">M. albidus</emphasis>
|
||
</taxonomicName>
|
||
by the larger eyes, the sparser setation of the head, the longer antenna, the heavier setation of the limbs, and the greater relative length of the posterior pereopod (V–VII) series.
|
||
</paragraph>
|
||
<paragraph id="8BD436FF5034FFFDFF5B5731FD26CFBB" blockId="50.[151,1437,152,978]" pageId="50" pageNumber="51">Although the distal margin of the pleopod II endopod figured (Fig. 40B) was truncate and concave, the distal margin of the right pleopod II endopod was rounded, approaching the normal condition seen in the remaining endopods of both the male and female.</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |