treatments-xml/data/03/88/87/038887F2684B826D55157BF5C2F4FB39.xml

<document id="D6D5E5919209E1BBBAF2666EC9AEF89A" ID-CLB-Dataset="27036" ID-DOI="10.5281/zenodo.2646092" ID-GBIF-Dataset="ec561977-c515-476a-b1e0-3804a5067d47" ID-ISSN="1175-5326" ID-Zenodo-Dep="2646092" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1555587826962" checkinUser="plazi" docAuthor="Larsen, Kim, Błażewicz-Paszkowycz, Magdalena &amp; Cunha, Marina R." docDate="2006" docId="038887F2684B826D55157BF5C2F4FB39" docLanguage="en" docName="zt01187p036.pdf" docOrigin="Zootaxa 1187" docStyle="DocumentStyle:FA7E419B012A62B0FC3AC15A186C3DAF.3:Zootaxa.2001-2006.journal_article" docStyleId="FA7E419B012A62B0FC3AC15A186C3DAF" docStyleName="Zootaxa.2001-2006.journal_article" docStyleVersion="3" docTitle="Mesotanais styxis Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha 2006, n. sp." docType="treatment" docVersion="11" lastPageNumber="15" masterDocId="FFB1FF8A68428263541D7D7CC046FF9F" masterDocTitle="Tanaidacean (Crustacea: Peracarida) fauna from chemically reduced habitats-the lucky strike hydrothermal vent system, mid-atlantic ridge" masterLastPageNumber="36" masterPageNumber="1" pageNumber="10" updateTime="1698722856606" updateUser="ExternalLinkService">
<mods:mods id="7A0B491DFA41AF3C913FB7179E218AD9" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="FBCA80FC6B86432838A7C624D2C62AD1">
<mods:title id="5F953EC75E4B9416FBF0BB8937F8A990">Tanaidacean (Crustacea: Peracarida) fauna from chemically reduced habitats-the lucky strike hydrothermal vent system, mid-atlantic ridge</mods:title>
</mods:titleInfo>
<mods:name id="C5DEB5F6BA058E9AAAC11E4D7BDD71C1" type="personal">
<mods:role id="F81C8641ECB320833BE7042AA370E8A7">
<mods:roleTerm id="3719839C0348A2CCE78189C02901692B">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="EC89B1BDB4FA5DC1FD5E848441654015">Larsen, Kim</mods:namePart>
</mods:name>
<mods:name id="CB8FAAD42EB875D039DB78ADB12969E5" type="personal">
<mods:role id="144CA6C3D758CB13E9492323E5DA9537">
<mods:roleTerm id="AB07DC75C60069BA8F982280491D4237">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="2136F7D5D0646FE31E733EBD60DF64A9">Błażewicz-Paszkowycz, Magdalena</mods:namePart>
</mods:name>
<mods:name id="83FE0696C9D81279A04890ABFCC99696" type="personal">
<mods:role id="B68B94B083BB4175260B6CF91EB36EBF">
<mods:roleTerm id="1FDA8E519E353402FB4651CAAA443918">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="235C976DB5C1A0644320A7C7C73D0A78">Cunha, Marina R.</mods:namePart>
</mods:name>
<mods:typeOfResource id="2D6F0D77F376597C7CB98255B6F8353C">text</mods:typeOfResource>
<mods:relatedItem id="C8D07067CBFE8258B4661D8322BAC31F" type="host">
<mods:titleInfo id="87AD0A0364993D174EDCE9FC3734B9EE">
<mods:title id="7DAB13C7E580A7CF08BE970FE81C6559">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="7537BE589F11E096BA7DFE9FF1C474BF">
<mods:date id="FC5BB42468C926F43AD8561B4FED6F59">2006</mods:date>
<mods:detail id="80A54AD49DE270FA6F11564DADD3F91D" type="pubDate">
<mods:number id="BE8777937BF01B0D807ED668FE8B3A96">2006-04-28</mods:number>
</mods:detail>
<mods:detail id="DB09C53F60FAC8E7B7138F4359CD7EB9" type="volume">
<mods:number id="5CA078D990B7CF7C9B1711209AF7043C">1187</mods:number>
</mods:detail>
<mods:extent id="F20666C7E42F7E0F401078195EF72F93" unit="page">
<mods:start id="05650813E10D4F7DF3FAFE5FFC2883A9">1</mods:start>
<mods:end id="DA13547A22C4FEDC8FBE0147F415F842">36</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="CA9312CDBCCC77D3AD59C988D561E3C4">journal article</mods:classification>
<mods:identifier id="7C6F6AC764F5E402EBF30DAA49D21730" type="CLB-Dataset">27036</mods:identifier>
<mods:identifier id="7F4DD6F85703DE11F284C350A2712161" type="DOI">10.5281/zenodo.2646092</mods:identifier>
<mods:identifier id="52F6682E5FF7A5900589BC3325CCDDAB" type="GBIF-Dataset">ec561977-c515-476a-b1e0-3804a5067d47</mods:identifier>
<mods:identifier id="9F0B29029461CE62E063BC3BE8FCEB5B" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="E362E7DB5E8409B8F8AA28976BEE5BFB" type="Zenodo-Dep">2646092</mods:identifier>
<mods:identifier id="9826BB6B1D3B6402C542A36F00EB864A" type="ZooBank">C020B152-CDE8-47BF-B2B4-7C53AC238875</mods:identifier>
</mods:mods>
<treatment id="038887F2684B826D55157BF5C2F4FB39" ID-GBIF-Taxon="156789435" LSID="urn:lsid:plazi:treatment:038887F2684B826D55157BF5C2F4FB39" httpUri="http://treatment.plazi.org/id/038887F2684B826D55157BF5C2F4FB39" lastPageId="14" lastPageNumber="15" pageId="9" pageNumber="10">
<subSubSection id="C33B656F684B826A55157BF5C2E9F93C" box="[264,687,1673,1699]" pageId="9" pageNumber="10" type="nomenclature">
<paragraph id="8B9E36E4684B826A55157BF5C2E9F93C" blockId="9.[264,687,1673,1699]" box="[264,687,1673,1699]" pageId="9" pageNumber="10">
<emphasis id="B955EAF6684B826A55157BF5C2E9F93C" bold="true" box="[264,687,1673,1699]" pageId="9" pageNumber="10">
<taxonomicName id="4C214D67684B826A55157BF5C19BF93C" ID-CoL="42758" authority="Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha, 2006" authorityName="Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha" authorityYear="2006" box="[264,477,1673,1699]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="9" pageNumber="10" phylum="Arthropoda" rank="species" species="styxis" status="sp. nov.">
<emphasis id="B955EAF6684B826A55157BF5C19BF93C" bold="true" box="[264,477,1673,1699]" italics="true" pageId="9" pageNumber="10">Mesotanais styxis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266578D684B826A55F97BF5C260F93C" box="[484,550,1673,1699]" pageId="9" pageNumber="10" rank="species">n. sp.</taxonomicNameLabel>
(
<figureCitation id="131A2A61684B826A56287BF5C2CFF93C" box="[565,649,1673,1699]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="9" pageNumber="10">Figs. 3</figureCitation>
, 
<figureCitation id="131A2A61684B826A568A7BF5C2E1F93C" box="[663,679,1673,1699]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="9" pageNumber="10">4</figureCitation>
)
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C33B656F684B826955157BA8C415FE49" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10" type="materials_examined">
<paragraph id="8B9E36E4684B826A55157BA8C1A0F972" blockId="9.[264,1323,1748,1894]" box="[264,486,1748,1773]" pageId="9" pageNumber="10">
<emphasis id="B955EAF6684B826A55157BA8C1A0F972" box="[264,486,1748,1773]" italics="true" pageId="9" pageNumber="10">Material examined</emphasis>
</paragraph>
<paragraph id="8B9E36E4684B826955257B80C415FE49" blockId="9.[264,1323,1748,1894]" lastBlockId="10.[264,1323,284,470]" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
<materialsCitation id="3B493CB9684B826A55257B80C2D6F8F9" ID-GBIF-Occurrence="2236573040" collectingDate="2000-08" collectionCode="ZMUC, RV" elevation="1750" latitude="37.274734" longLatPrecision="1" longitude="-32.263317" pageId="9" pageNumber="10" specimenCode="CRU-4910" specimenCount="1" typeStatus="holotype">
<typeStatus id="549A8846684B826A55257B80C1ECF889" box="[312,426,1788,1814]" pageId="9" pageNumber="10" type="holotype">Holotype</typeStatus>
: non­ovigerous female (
<collectionCode id="ED30AE21684B826A56FB7B80C37BF889" box="[742,829,1788,1814]" country="Denmark" httpUri="http://grbio.org/cool/mci8-ehqk" name="Zoological Museum, University of Copenhagen" pageId="9" pageNumber="10">ZMUC</collectionCode>
<specimenCode id="DB879E9F684B826A57527B80C392F889" box="[847,980,1788,1814]" collectionCode="CRU-" pageId="9" pageNumber="10">CRU­4910</specimenCode>
), south of the vent field, 
<geoCoordinate id="EE155023684B826A55157A58C1E9F8A1" box="[264,431,1828,1854]" direction="north" orientation="latitude" pageId="9" pageNumber="10" precision="1" value="37.274734">37°16.484’ N</geoCoordinate>
, 
<geoCoordinate id="EE155023684B826A55DD7A58C22FF8A1" box="[448,617,1828,1854]" direction="west" orientation="longitude" pageId="9" pageNumber="10" precision="1" value="-32.263317">32º15.799’ W</geoCoordinate>
, 
<elevation id="000CD1D7684B826A56677A58C29CF8A1" box="[634,730,1828,1854]" metricMagnitude="3" metricUnit="m" metricValue="1.75" pageId="9" pageNumber="10" unit="m" value="1750.0">
<quantity id="4CD99B01684B826A56677A58C29CF8A1" box="[634,730,1828,1854]" metricMagnitude="3" metricUnit="m" metricValue="1.75" pageId="9" pageNumber="10" unit="m" value="1750.0">1750 m</quantity>
</elevation>
, 
<collectionCode id="ED30AE21684B826A56F67A58C357F8A1" box="[747,785,1828,1854]" country="Italy" name="Collection of Leptospira Strains" pageId="9" pageNumber="10">RV</collectionCode>
<emphasis id="B955EAF6684B826A57007A58C392F8A2" box="[797,980,1828,1853]" italics="true" pageId="9" pageNumber="10">Prof. Logachev</emphasis>
, TV­assisted grab, TTR­10, station AT­280­GR, 
<collectingDate id="EFDBE9CC684B826A55EB7A30C2D6F8F9" box="[502,656,1868,1894]" pageId="9" pageNumber="10" value="2000-08">
<date id="FF9F1024684B826A55EB7A30C2D6F8F9" box="[502,656,1868,1894]" pageId="9" pageNumber="10" value="2000-08">August 2000</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="3B493CB9684B826956867A30C41AFE19" ID-GBIF-Occurrence="2236573032" collectingDate="2002-08" collectionCode="ZMUC, RV" elevation="1718" lastPageId="10" lastPageNumber="11" latitude="37.28815" longLatPrecision="1" longitude="-32.275368" pageId="9" pageNumber="10" specimenCode="CRU-4911" specimenCount="1" typeStatus="paratype">
<typeStatus id="549A8846684B826A56867A30C351F8F9" box="[667,791,1868,1894]" pageId="9" pageNumber="10" type="paratype">Paratypes</typeStatus>
:1 non­ovigerous female (
<collectionCode id="ED30AE21684B826A50267A30C4D4F8F9" box="[1083,1170,1868,1894]" country="Denmark" httpUri="http://grbio.org/cool/mci8-ehqk" name="Zoological Museum, University of Copenhagen" pageId="9" pageNumber="10">ZMUC</collectionCode>
<specimenCode id="DB879E9F684B826A50877A30C558F8F9" box="[1178,1310,1868,1894]" collectionCode="CRU-" pageId="9" pageNumber="10">CRU­4911</specimenCode>
), same data. 1 non­ovigerous female (dissected), same data. Other material: 2 non­ovigerous females, 1 manca III, inside the vent field, 
<geoCoordinate id="EE15502368488269571D7C38C3E6FEC1" box="[768,928,324,350]" direction="north" orientation="latitude" pageId="10" pageNumber="11" precision="1" value="37.28815">37º17.289’ N</geoCoordinate>
, 
<geoCoordinate id="EE1550236848826957B17C38C417FEC1" box="[940,1105,324,350]" direction="west" orientation="longitude" pageId="10" pageNumber="11" precision="1" value="-32.275368">32º16.522’ W</geoCoordinate>
, 
<elevation id="000CD1D76848826950417C38C4FFFEC1" box="[1116,1209,324,350]" metricMagnitude="3" metricUnit="m" metricValue="1.718" pageId="10" pageNumber="11" unit="m" value="1718.0">
<quantity id="4CD99B016848826950417C38C4FFFEC1" box="[1116,1209,324,350]" metricMagnitude="3" metricUnit="m" metricValue="1.718" pageId="10" pageNumber="11" unit="m" value="1718.0">1718 m</quantity>
</elevation>
, 
<collectionCode id="ED30AE216848826950D97C38C4ACFEC1" box="[1220,1258,324,350]" country="Italy" name="Collection of Leptospira Strains" pageId="10" pageNumber="11">RV</collectionCode>
<emphasis id="B955EAF66848826950ED7C38C13EFE1A" italics="true" pageId="10" pageNumber="11">Prof. Logachev</emphasis>
, TV­assisted grab, TTR­12, station AT­428­GR, 
<collectingDate id="EFDBE9CC6848826957DD7C10C41AFE19" box="[960,1116,364,390]" pageId="10" pageNumber="11" value="2002-08">
<date id="FF9F10246848826957DD7C10C41AFE19" box="[960,1116,364,390]" pageId="10" pageNumber="11" value="2002-08">August 2002</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="3B493CB96848826950747C10C408FE49" ID-GBIF-Occurrence="2236573035" collectingDate="2002-08" collectionCode="RV" elevation="1709" latitude="37.288334" longLatPrecision="1" longitude="-32.27605" pageId="10" pageNumber="11" specimenCount="1" typeStatus="paratype">
1 non­ovigerous female, 2 (half) non­ovigerous females, 
<geoCoordinate id="EE1550236848826956F17CE8C3C9FE31" box="[748,911,404,430]" direction="north" orientation="latitude" pageId="10" pageNumber="11" precision="1" value="37.288334">37º17.300’ N</geoCoordinate>
, 
<geoCoordinate id="EE1550236848826957837CE8C402FE31" box="[926,1092,404,430]" direction="west" orientation="longitude" pageId="10" pageNumber="11" precision="1" value="-32.27605">32º16.563’ W</geoCoordinate>
, 
<elevation id="000CD1D768488269504F7CE8C4F7FE31" box="[1106,1201,404,430]" metricMagnitude="3" metricUnit="m" metricValue="1.709" pageId="10" pageNumber="11" unit="m" value="1709.0">
<quantity id="4CD99B0168488269504F7CE8C4F7FE31" box="[1106,1201,404,430]" metricMagnitude="3" metricUnit="m" metricValue="1.709" pageId="10" pageNumber="11" unit="m" value="1709.0">1709 m</quantity>
</elevation>
, 
<collectionCode id="ED30AE216848826950A27CE8C4A3FE31" box="[1215,1253,404,430]" country="Italy" name="Collection of Leptospira Strains" pageId="10" pageNumber="11">RV</collectionCode>
<emphasis id="B955EAF66848826950ED7CE8C13EFE4A" italics="true" pageId="10" pageNumber="11">Prof. Logachev</emphasis>
, TV­assisted grab, TTR­12, station AT­436­GR, 
<collectingDate id="EFDBE9CC6848826957A97CC0C408FE49" box="[948,1102,444,470]" pageId="10" pageNumber="11" value="2002-08">
<date id="FF9F10246848826957A97CC0C408FE49" box="[948,1102,444,470]" pageId="10" pageNumber="11" value="2002-08">August 2002</date>
</collectingDate>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C33B656F6848826955157F70C3A2FDE9" pageId="10" pageNumber="11" type="diagnosis">
<paragraph id="8B9E36E46848826955157F70C3A2FDE9" blockId="10.[264,1320,524,630]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955157F70C139FDBA" box="[264,383,524,549]" italics="true" pageId="10" pageNumber="11">Diagnosis</emphasis>
Female. Antennule without long (almost as long as antennule) setae. Maxilliped basis with only one distal seta. Uropodal endopod with four articles.
</paragraph>
</subSubSection>
<subSubSection id="C33B656F6848826955157FD0C194FCA1" pageId="10" pageNumber="11" type="etymology">
<paragraph id="8B9E36E46848826955157FD0C1C3FD5A" blockId="10.[264,1323,684,830]" box="[264,389,684,709]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955157FD0C1C3FD5A" box="[264,389,684,709]" italics="true" pageId="10" pageNumber="11">Etymology</emphasis>
</paragraph>
<paragraph id="8B9E36E46848826955257FA8C194FCA1" blockId="10.[264,1323,684,830]" pageId="10" pageNumber="11">This species is named after the mythological subterranean River Styx separating the world of the living from the underworld, due to the collection sites at another such ‘river’ (the vent plume).</paragraph>
</subSubSection>
<subSubSection id="C33B656F6848826D55157E08C1A5FDB9" lastPageId="14" lastPageNumber="15" pageId="10" pageNumber="11" type="description">
<paragraph id="8B9E36E46848826955157E08C1D4FC12" blockId="10.[264,1324,884,1870]" box="[264,402,884,909]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955157E08C1D4FC12" box="[264,402,884,909]" italics="true" pageId="10" pageNumber="11">Description</emphasis>
</paragraph>
<paragraph id="8B9E36E46848826955257EE0C2E3FC29" blockId="10.[264,1324,884,1870]" box="[312,677,924,950]" pageId="10" pageNumber="11">
Female. Body length 
<quantity id="4CD99B016848826956297EE0C2E7FC29" box="[564,673,924,950]" metricMagnitude="-3" metricUnit="m" metricValue="1.85" pageId="10" pageNumber="11" unit="mm" value="1.85">1.85 mm</quantity>
.
</paragraph>
<paragraph id="8B9E36E46848826955257EB8C333FC41" blockId="10.[264,1324,884,1870]" box="[312,885,964,990]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955257EB8C132FC42" box="[312,372,964,989]" italics="true" pageId="10" pageNumber="11">Body</emphasis>
(
<figureCitation id="131A2A616848826955997EB8C245FC41" box="[388,515,964,990]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="10" pageNumber="11">Fig. 3A, B</figureCitation>
). Seven times as long as broad.
</paragraph>
<paragraph id="8B9E36E46848826955257E90C25BFBB1" blockId="10.[264,1324,884,1870]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955257E90C1AEFB9A" box="[312,488,1004,1029]" italics="true" pageId="10" pageNumber="11">Cephalothorax</emphasis>
. Shorter than combined length of Pereonite 1 and 2. Eyelobes present, no visual pigmentation.
</paragraph>
<paragraph id="8B9E36E46848826955257940C272FBE1" blockId="10.[264,1324,884,1870]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955257940C1F2FBCA" box="[312,436,1084,1109]" italics="true" pageId="10" pageNumber="11">Pereonites</emphasis>
. Pereonite 1 and 6 wider than long. Pereonite 2 square. Pereonites 3–5 slightly longer than wide.
</paragraph>
<paragraph id="8B9E36E468488269552579F0C450FB69" blockId="10.[264,1324,884,1870]" pageId="10" pageNumber="11">
<emphasis id="B955EAF668488269552579F0C13AFB3A" box="[312,380,1164,1189]" italics="true" pageId="10" pageNumber="11">Pleon</emphasis>
. Very short (only 15% of total body length). Pleonites marginally wider than pereonites, all with pleopods and with one robust lateral seta on each margin. Pleotelson longer than combined length of last two pleonites (in lateral view).
</paragraph>
<paragraph id="8B9E36E46848826955257878C235FA21" blockId="10.[264,1324,884,1870]" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955257878C1E9FA82" box="[312,431,1284,1309]" italics="true" pageId="10" pageNumber="11">Antennule</emphasis>
(
<figureCitation id="131A2A616848826955A37878C25CFA81" box="[446,538,1284,1310]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="10" pageNumber="11">Fig. 3C</figureCitation>
). Long (as long as combined length of cephalothorax and pereonite 1. With three articles; article 1 longer than rest of antennule combined, with three simple medial and five simple distal setae; article 2 one­third as long as of article 1, with two simple distal setae; article 3 about half length of article 1, with three long, two short simple distal setae and one aesthetasc.
</paragraph>
<paragraph id="8B9E36E468488269552578B0C186F949" blockId="10.[264,1324,884,1870]" pageId="10" pageNumber="11">
<emphasis id="B955EAF668488269552578B0C1DCFA7A" box="[312,410,1484,1509]" italics="true" pageId="10" pageNumber="11">Antenna</emphasis>
(
<figureCitation id="131A2A616848826955B678B0C24CFA79" box="[427,522,1484,1510]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="10" pageNumber="11">Fig. 3D</figureCitation>
). Three­quarters length of antennule. With six articles; article 1 not broader than following articles, naked; article 2 shorter than article 5, with one spiniform dorsodistal seta and one simple seta on each distal margin; article 3 shorter than article 2, with one spiniform dorsodistal seta; article 4 longer than other articles, with one simple and one pinnate medial seta and eight distal setae; article 5 slightly longer than half of article 4, with one distal seta; article 6 minute, distally with three long simple setae and two short setae.
</paragraph>
<paragraph id="8B9E36E46848826855257B98C1C5FD71" blockId="10.[264,1324,884,1870]" lastBlockId="11.[264,1324,284,1870]" lastPageId="11" lastPageNumber="12" pageId="10" pageNumber="11">
<emphasis id="B955EAF66848826955257B98C187F962" box="[312,449,1764,1789]" italics="true" pageId="10" pageNumber="11">Mouthparts</emphasis>
. Labrum (
<figureCitation id="131A2A616848826956207B98C2D0F961" box="[573,662,1764,1790]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="10" pageNumber="11">Fig. 3E</figureCitation>
) setose and with flat apex. Mandibles (
<figureCitation id="131A2A6168488269507B7B98C4ECF961" box="[1126,1194,1764,1790]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="10" pageNumber="11">Fig. 3</figureCitation>
F–H) large and well developed; molar broad and twisted relative to incisor, longer than incisor. Left mandible (
<figureCitation id="131A2A616848826955977A48C1A0F8D1" box="[394,486,1844,1870]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="10" pageNumber="11">Fig. 3F</figureCitation>
) 
<emphasis id="B955EAF66848826955E67A48C2E9F8D2" box="[507,687,1844,1869]" italics="true" pageId="10" pageNumber="11">lacinia mobilis</emphasis>
larger than incisor, with several distal denticles on upper margin; incisor with tapering apex without denticles. Right mandible (
<figureCitation id="131A2A616849826850977C60C564FEA9" box="[1162,1314,284,310]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="11" pageNumber="12">Fig. 3G &amp; H</figureCitation>
) incisor with tapering apex and serration on both margins. Labium (
<figureCitation id="131A2A616849826850367C38C43BFEC1" box="[1067,1149,324,350]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="11" pageNumber="12">
Fig. 
<date id="FF9F10246849826850797C38C43BFEC1" box="[1124,1149,324,350]" pageId="11" pageNumber="12">3I</date>
</figureCitation>
) consisting of two pairs of lobes, outer lobe setose on distal margin, inner lobes apparently naked. Maxillule (
<figureCitation id="131A2A616849826855907CE8C1A4FE31" box="[397,482,404,430]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="11" pageNumber="12">Fig. 3J</figureCitation>
) with nine spiniform terminal setae, several distal setules and row of setae proximally on inner margin of endite shaft; palp (
<figureCitation id="131A2A616849826857BB7CC0C442FE49" box="[934,1028,444,470]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="11" pageNumber="12">Fig. 3K</figureCitation>
) shorter than endite and with two distal setae. Maxilla not recovered. Maxilliped (
<figureCitation id="131A2A616849826857C77C98C47AFE61" box="[986,1084,484,510]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4A</figureCitation>
) endites small and narrow, with three rounded, flat, short setae (middle one with irregular distal edge). Basis with only one long simple seta at palp insertion. Palp article 1 naked; article 2 with one outer seta, four short medial setae, and four long distal setae (of which at least one is serrated) on inner margin; article 3 with multiple inner setae of variable thickness, (of which several are serrated); article 4 with six distal inner and one outer setae. Epignath not recovered.
</paragraph>
<paragraph id="8B9E36E46849826855257F80C493FC29" blockId="11.[264,1324,284,1870]" pageId="11" pageNumber="12">
<emphasis id="B955EAF66849826855257F80C1E4FC8A" box="[312,418,764,789]" italics="true" pageId="11" pageNumber="12">Cheliped</emphasis>
(
<figureCitation id="131A2A616849826855A87F80C250FC89" box="[437,534,764,790]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4B</figureCitation>
). Basis shorter than carpus, naked, attached via anterior sclerite. Merus with one ventral seta. Carpus shorter than propodus including fixed finger, with three ventral and two dorsal setae. Propodus elongated and with several setae at dactylus insertion. Fixed finger with two ventral setae and three setae on inner margin and with conspicuous denticles on inner margin. Dactylus as long as fixed finger and naked.
</paragraph>
<paragraph id="8B9E36E46849826855257EB8C2DAFB51" blockId="11.[264,1324,284,1870]" pageId="11" pageNumber="12">
<emphasis id="B955EAF66849826855257EB8C187FC42" box="[312,449,964,989]" italics="true" pageId="11" pageNumber="12">Pereopod 1</emphasis>
(
<figureCitation id="131A2A616849826855C97EB8C272FC41" box="[468,564,964,990]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4C</figureCitation>
). Almost twice as long as pereopods 3–6. Coxa with one seta. Basis longer than three following articles combined, naked. Ischium naked. Merus as long as carpus, rectangular and naked. Carpus less than half as long as propodus, with three simple distal setae. Propodus longer than half of basis, with three simple dorso­subdistal setae, one minute ventro­subdistal seta and without apparent dorsal spine. Dactylus and unguis combined longer than propodus and not fused. Dactylus with one simple dorsal seta. Unguis shorter than dactylus.
</paragraph>
<paragraph id="8B9E36E468498268552579A0C365FA21" blockId="11.[264,1324,284,1870]" pageId="11" pageNumber="12">
<emphasis id="B955EAF668498268552579A0C187FB6A" box="[312,449,1244,1269]" italics="true" pageId="11" pageNumber="12">Pereopod 2</emphasis>
(
<figureCitation id="131A2A616849826855CE79A0C277FB69" box="[467,561,1244,1270]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4D</figureCitation>
) Coxa with one seta. Basis longer than three following articles combined. Ischium with one ventral seta. Merus widening distally, with one ventral distal seta. Carpus three­quarters length of propodus, with three minute distal setae. Propodus shorter than merus and carpus combined, with one ventral and two simple subdistal setae and without apparent dorsal spine. Dactylus and unguis shorter than propodus, not fused. Dactylus naked. Unguis shorter than dactylus.
</paragraph>
<paragraph id="8B9E36E468498268552578B0C3D5F9A9" blockId="11.[264,1324,284,1870]" pageId="11" pageNumber="12">
<emphasis id="B955EAF668498268552578B0C18AFA7A" box="[312,460,1484,1509]" italics="true" pageId="11" pageNumber="12">Pereopod 3</emphasis>
(
<figureCitation id="131A2A616849826855F478B0C214FA79" box="[489,594,1484,1510]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4E</figureCitation>
). As pereopod 2 except: coxa naked. Basis with one dorsoproximal seta. Merus with two simple distal setae. Carpus with two simple distal setae. Propodus with one subdistal seta on each margin.
</paragraph>
<paragraph id="8B9E36E46849826855257B38C381F8B9" blockId="11.[264,1324,284,1870]" pageId="11" pageNumber="12">
<emphasis id="B955EAF66849826855257B38C186F9C2" box="[312,448,1604,1629]" italics="true" pageId="11" pageNumber="12">Pereopod 4</emphasis>
(
<figureCitation id="131A2A616849826855CD7B38C26DF9C1" box="[464,555,1604,1630]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4F</figureCitation>
). Without coxa. Basis marginally thicker than on pereopods 1–3, with one dorsoproximal pinnate seta. Ischium with one ventral seta. Merus as long as carpus, with two spiniform ventral setae. Carpus with three spiniform distal setae. Propodus shorter than combined length of merus and carpus, with dorsomedial pinnate seta, one ventral and three dorsal spiniform and one stout distal setae. Dactylus and unguis incompletely fused to a slender claw, shorter than propodus.
</paragraph>
<paragraph id="8B9E36E46849826F55257A48C439FEA9" blockId="11.[264,1324,284,1870]" lastBlockId="12.[264,1324,284,430]" lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12">
<emphasis id="B955EAF66849826855257A48C183F8D2" box="[312,453,1844,1869]" italics="true" pageId="11" pageNumber="12">Pereopod 5</emphasis>
(
<figureCitation id="131A2A616849826855C77A48C279F8D1" box="[474,575,1844,1870]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="11" pageNumber="12">Fig. 4G</figureCitation>
). As pereopod 4 except: ischium naked. Propodus with one dorsodistal stout seta, and one ventral and two dorsal spiniform distal setae.
</paragraph>
<paragraph id="8B9E36E4684E826F55257C38C278FE31" blockId="12.[264,1324,284,430]" pageId="12" pageNumber="13">
<emphasis id="B955EAF6684E826F55257C38C182FEC2" box="[312,452,324,349]" italics="true" pageId="12" pageNumber="13">Pereopod 6</emphasis>
(
<figureCitation id="131A2A61684E826F55CA7C38C27DFEC1" box="[471,571,324,350]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="12" pageNumber="13">Fig. 4H</figureCitation>
). As pereopod 5 except: basis naked. Ischium with one seta. Carpus with two spiniform and one simple distal setae. Propodus with five spiniform and two stout dorsodistal setae
</paragraph>
<caption id="DF5E666C684E826F55157B98C1F8F8FC" httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="12" pageNumber="13" startId="12.[264,367,1764,1788]" targetBox="[286,1298,477,1752]" targetPageId="12">
<paragraph id="8B9E36E4684E826F55157B98C1F8F8FC" blockId="12.[264,1323,1764,1891]" pageId="12" pageNumber="13">
<emphasis id="B955EAF6684E826F55157B98C1C9F963" bold="true" box="[264,399,1764,1788]" pageId="12" pageNumber="13">FIGURE 3.</emphasis>
<taxonomicName id="4C214D67684E826F55817B98C219F964" authority="Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha, 2006" authorityName="Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha" authorityYear="2006" box="[412,607,1764,1787]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="12" pageNumber="13" phylum="Arthropoda" rank="species" species="styxis" status="sp. nov.">
<emphasis id="B955EAF6684E826F55817B98C219F964" box="[412,607,1764,1787]" italics="true" pageId="12" pageNumber="13">Mesotanais styxis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266578D684E826F56767B98C2EBF963" box="[619,685,1764,1788]" pageId="12" pageNumber="13" rank="species">
<emphasis id="B955EAF6684E826F56767B98C2EBF963" bold="true" box="[619,685,1764,1788]" pageId="12" pageNumber="13">n. sp.</emphasis>
</taxonomicNameLabel>
A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm.
</paragraph>
</caption>
<caption id="DF5E666C684F826E55157A6BC480F8CE" httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="13" pageNumber="14" startId="13.[264,367,1815,1839]" targetBox="[94,1300,286,1797]" targetPageId="13">
<paragraph id="8B9E36E4684F826E55157A6BC480F8CE" blockId="13.[264,1321,1815,1873]" pageId="13" pageNumber="14">
<emphasis id="B955EAF6684F826E55157A6BC1CDF8B0" bold="true" box="[264,395,1815,1839]" pageId="13" pageNumber="14">FIGURE 4.</emphasis>
<taxonomicName id="4C214D67684F826E558E7A64C217F8B0" authority="Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha, 2006" authorityName="Larsen &amp; Błażewicz-Paszkowycz &amp; Cunha" authorityYear="2006" box="[403,593,1816,1839]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="13" pageNumber="14" phylum="Arthropoda" rank="species" species="styxis" status="sp. nov.">
<emphasis id="B955EAF6684F826E558E7A64C217F8B0" box="[403,593,1816,1839]" italics="true" pageId="13" pageNumber="14">Mesotanais styxis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266578D684F826E56447A6BC2CAF8B1" box="[601,652,1815,1838]" pageId="13" pageNumber="14" rank="species">n.sp.</taxonomicNameLabel>
A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm.
</paragraph>
</caption>
<paragraph id="8B9E36E4684C826D55257C60C40FFE19" blockId="14.[264,1323,284,1070]" pageId="14" pageNumber="15">
<emphasis id="B955EAF6684C826D55257C60C1E3FEAA" box="[312,421,284,309]" italics="true" pageId="14" pageNumber="15">Pleopods</emphasis>
(
<figureCitation id="131A2A61684C826D55AA7C60C253FEA9" box="[439,533,284,310]" captionStart="FIGURE 3" captionStartId="12.[264,367,1764,1788]" captionTargetBox="[286,1298,477,1752]" captionTargetId="figure@12.[278,1319,466,1752]" captionTargetPageId="12" captionText="FIGURE 3. Mesotanais styxis n. sp. A, holotype, dorsal view; B, holotype, lateral view; C, antennule; D, antenna; E, labrum; F, left mandible; G, right mandible, incisor; H, right mandible, molar; I, labium; J, maxillule, endite; K, maxillule, palp; L, pleopod. Scale bars: A &amp; B = 1 mm. others = 0.1 mm." httpUri="https://zenodo.org/record/2646098/files/figure.png" pageId="14" pageNumber="15">Fig. 3L</figureCitation>
). Well developed. Basal article with one plumose seta (setulation not illustrated). Exopod with seven outer and one inner plumose setae. Endopod with eleven outer plumose setae, gap between proximal seta and other setae.
</paragraph>
<paragraph id="8B9E36E4684C826D55257CE8C1A5FDB9" blockId="14.[264,1323,284,1070]" pageId="14" pageNumber="15">
<emphasis id="B955EAF6684C826D55257CE8C1DBFE32" box="[312,413,404,429]" italics="true" pageId="14" pageNumber="15">Uropods</emphasis>
(
<figureCitation id="131A2A61684C826D55AC7CE8C241FE31" box="[433,519,404,430]" captionStart="FIGURE 4" captionStartId="13.[264,367,1815,1839]" captionTargetBox="[94,1300,286,1797]" captionTargetId="figure@13.[295,1303,326,1805]" captionTargetPageId="13" captionText="FIGURE 4. Mesotanais styxis n.sp. A, maxilliped; B, cheliped; C, pereopod 1; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, uropod. Scale bars = 0.1 mm." httpUri="https://zenodo.org/record/2646100/files/figure.svg" pageId="14" pageNumber="15">
Fig. 
<date id="FF9F1024684C826D55F67CE8C241FE31" box="[491,519,404,430]" pageId="14" pageNumber="15">4I</date>
</figureCitation>
). Biramous, more than half as long as pleon. Basal article naked. Exopod biarticulated, longer than first endopod article; article 1 with one distal seta, article 2 with two distal setae. Endopod with four articles, all with distal setae; most articles also with pinnate setae.
</paragraph>
</subSubSection>
<subSubSection id="C33B656F684C826D55257F48C48EFBB1" pageId="14" pageNumber="15" type="discussion">
<paragraph id="8B9E36E4684C826D55257F48C56CFCA1" blockId="14.[264,1323,284,1070]" pageId="14" pageNumber="15">
<emphasis id="B955EAF6684C826D55257F48C1D8FDD2" box="[312,414,564,589]" italics="true" pageId="14" pageNumber="15">Remarks</emphasis>
. This new species can be separated from all other species of 
<taxonomicName id="4C214D67684C826D50607F48C542FDD2" authorityName="Dollfus" authorityYear="1897" box="[1149,1284,564,589]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="genus">
<emphasis id="B955EAF6684C826D50607F48C542FDD2" box="[1149,1284,564,589]" italics="true" pageId="14" pageNumber="15">Mesotanais</emphasis>
</taxonomicName>
by the presence of only one seta at the maxilliped bases. Furthermore, the new species differs from 
<taxonomicName id="4C214D67684C826D55547FF8C28BFD01" authority="Sieg &amp; Heard, 1989" authorityName="Sieg &amp; Heard" authorityYear="1989" box="[329,717,644,670]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="vadicola">
<emphasis id="B955EAF6684C826D55547FF8C191FD02" box="[329,471,644,669]" italics="true" pageId="14" pageNumber="15">M. vadicola</emphasis>
<bibRefCitation id="EFB04B15684C826D55C27FF8C28BFD01" author="Sieg, J. &amp; Heard, R. W." box="[479,717,644,670]" pageId="14" pageNumber="15" pagination="73 - 95" refId="ref12429" refString="Sieg, J. &amp; Heard, R. W. (1989) Tanaidacea (Crustacea: Peracarida) of the Gulf of Mexico. VI. On the genus Mesotanais Dollfus, 1897 with descriptions of two new species, M. longisetotus and M. vadicola. Gulf Research Report, 8 (2), 73 - 95." type="journal article" year="1989">Sieg &amp; Heard, 1989</bibRefCitation>
</taxonomicName>
by a slender, almost straight cheliped and from 
<taxonomicName id="4C214D67684C826D51167FF8C2E0FD59" authority="Sieg &amp; Heard, 1989" authorityName="Sieg &amp; Heard" authorityYear="1989" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="longisetosus">
<emphasis id="B955EAF6684C826D51167FF8C1DFFD5A" italics="true" pageId="14" pageNumber="15">M. longisetosus</emphasis>
<bibRefCitation id="EFB04B15684C826D55BA7FD0C2E0FD59" author="Sieg, J. &amp; Heard, R. W." box="[423,678,684,710]" pageId="14" pageNumber="15" pagination="73 - 95" refId="ref12429" refString="Sieg, J. &amp; Heard, R. W. (1989) Tanaidacea (Crustacea: Peracarida) of the Gulf of Mexico. VI. On the genus Mesotanais Dollfus, 1897 with descriptions of two new species, M. longisetotus and M. vadicola. Gulf Research Report, 8 (2), 73 - 95." type="journal article" year="1989">Sieg &amp; Heard, 1989</bibRefCitation>
</taxonomicName>
by the absence of long antennular setae. From 
<taxonomicName id="4C214D67684C826D51167FD0C21BFD71" authority="Sieg &amp; Bird, 1989" authorityName="Sieg &amp; Bird" authorityYear="1989" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="elongatus">
<emphasis id="B955EAF6684C826D51167FD0C13CFD72" italics="true" pageId="14" pageNumber="15">M. elongatus</emphasis>
<bibRefCitation id="EFB04B15684C826D559F7FA8C21BFD71" author="Sieg, J. &amp; Bird, G. J." box="[386,605,724,750]" pageId="14" pageNumber="15" pagination="165 - 182" refId="ref12366" refString="Sieg, J. &amp; Bird, G. J. (1989) Remarks on the genus Mesotanais Dollfus, 1897 (Crustacea, Tanaidacea). Redescription of the type-species and description of M. elongatus sp. nov. Bulletin du Museum National dHistoire Naturelle, Section A. Zoologiebiologie et Ecologie Animales, 11, 165 - 182." type="journal article" year="1989">Sieg &amp; Bird, 1989</bibRefCitation>
</taxonomicName>
it differs by having three short flat maxillipedal endite setae and from 
<taxonomicName id="4C214D67684C826D55647F80C20AFC89" authority="Dollfus" authorityName="Dollfus" authorityYear="1897" box="[377,588,764,790]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="dubius">
<emphasis id="B955EAF6684C826D55647F80C1A8FC8A" box="[377,494,764,789]" italics="true" pageId="14" pageNumber="15">M. dubius</emphasis>
Dollfus
</taxonomicName>
by the simple shape of the right mandibular incisor, the lack of maxilliped basal simple setae, and by the two meral spiniform setae on pereopods 5 and 6.
</paragraph>
<paragraph id="8B9E36E4684C826D55257E30C3C6FC29" blockId="14.[264,1323,284,1070]" pageId="14" pageNumber="15">
The incomplete fusion of dactylus and unguis of the pereopods 4–6 is also seen in 
<taxonomicName id="4C214D67684C826D51167E30C12BFC12" authorityName="Sieg &amp; Heard" authorityYear="1989" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="vadicola">
<emphasis id="B955EAF6684C826D51167E30C12BFC12" italics="true" pageId="14" pageNumber="15">M. vadicola</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C214D67684C826D55B27E08C22AFC12" authorityName="Sieg &amp; Heard" authorityYear="1989" box="[431,620,884,909]" class="Malacostraca" family="Leptocheliidae" genus="Mesotanais" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="longisetosus">
<emphasis id="B955EAF6684C826D55B27E08C22AFC12" box="[431,620,884,909]" italics="true" pageId="14" pageNumber="15">M. longisetosus</emphasis>
</taxonomicName>
and, although not described, has been illustrated to vary within the individuals (
<bibRefCitation id="EFB04B15684C826D560B7EE0C336FC29" author="Sieg, J. &amp; Bird, G. J." box="[534,880,924,950]" pageId="14" pageNumber="15" pagination="165 - 182" refId="ref12366" refString="Sieg, J. &amp; Bird, G. J. (1989) Remarks on the genus Mesotanais Dollfus, 1897 (Crustacea, Tanaidacea). Redescription of the type-species and description of M. elongatus sp. nov. Bulletin du Museum National dHistoire Naturelle, Section A. Zoologiebiologie et Ecologie Animales, 11, 165 - 182." type="journal article" year="1989">Sieg &amp; Bird 1989: 177, fig. 8</bibRefCitation>
).
</paragraph>
<paragraph id="8B9E36E4684C826D55257EB8C48EFBB1" blockId="14.[264,1323,284,1070]" pageId="14" pageNumber="15">
This species is also unique in the having a four­articulated uropodal endopod, but this character has shown to be dependent on ontogeny in many species (
<bibRefCitation id="EFB04B15684C826D503C7E90C4F0FB99" author="Larsen, K." box="[1057,1206,1004,1030]" pageId="14" pageNumber="15" pagination="1 - 387" refId="ref11898" refString="Larsen, K. (2005) Deep-Sea Tanaidacea (Crustacea; Peracarida) from the Gulf of Mexico. Crustacean Monographs, 5, pp. 1 - 387." type="journal article" year="2005">Larsen 2005</bibRefCitation>
) which is also the case in the family 
<taxonomicName id="4C214D67684C826D56227968C2ABFBB1" authorityName="Lang" authorityYear="1973" box="[575,749,1044,1070]" class="Malacostraca" family="Leptocheliidae" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="family">Leptocheliidae</taxonomicName>
(
<bibRefCitation id="EFB04B15684C826D56E17968C3F4FBB1" author="Masunari, S." box="[764,946,1044,1070]" pageId="14" pageNumber="15" pagination="151 - 162" refId="ref12055" refString="Masunari, S. (1983) Postmarsupial development and population dynamic of Leptochelia savignyi (Kroyer, 1842) (Tanaidacea). Crustaceana, 44, 151 - 162." type="journal article" year="1983">Masunari 1983</bibRefCitation>
; 
<bibRefCitation id="EFB04B15684C826D57A37968C4FDFBB1" author="Bird, G. J. &amp; Bamber, R. N." box="[958,1211,1044,1070]" pageId="14" pageNumber="15" refId="ref10404" refString="Bird, G. J. &amp; Bamber, R. N. (2000) Additions to the Tanaidomorph tanaidaceans (Crustacea: Peracarida) of Hong Kong. Pp. 66 - 104. In: B. Morton (Ed.) The Marine Flora and Fauna of Hong Kong and Southern China IV. Proceedings of the Tenth International Marine Biological workshop: The Marine Flora and Fauna of Hong Kong and Southern China. Hong Kong, 2 - 26 April 1998. Hong Kong: Hong Kong University Press, 2000,." type="journal volume" year="2000">Bird &amp; Bamber 2000</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C33B656F684C826D551579F0C2F4FB39" box="[264,690,1164,1190]" pageId="14" pageNumber="15" type="reference_group">
<paragraph id="8B9E36E4684C826D551579F0C2F4FB39" blockId="14.[264,690,1164,1190]" box="[264,690,1164,1190]" pageId="14" pageNumber="15">
<emphasis id="B955EAF6684C826D551579F0C126FB39" bold="true" box="[264,352,1164,1190]" pageId="14" pageNumber="15">Family</emphasis>
<taxonomicName id="4C214D67684C826D557A79F0C2F4FB39" ID-CoL="84KKF" authority="Sieg, 1976" authorityName="Sieg" authorityYear="1976" box="[359,690,1164,1190]" class="Malacostraca" family="Nototanaidae" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="family">
<emphasis id="B955EAF6684C826D557A79F0C26BFB3A" bold="true" box="[359,557,1164,1190]" pageId="14" pageNumber="15">NOTOTANAIDAE</emphasis>
<bibRefCitation id="EFB04B15684C826D562879F0C2F4FB39" author="Sieg, J." box="[565,690,1164,1190]" pageId="14" pageNumber="15" pagination="177 - 198" refId="ref12264" refString="Sieg, J. (1976) Zum naturlichen System der Dikonophora Lang (Crustacea, Tanaidacea). Zeitschrift fur Zoologischer Systematik und Evolutionsforschung, 14, 177 - 198." type="journal article" year="1976">
<emphasis id="B955EAF6684C826D562879F0C2F4FB39" bold="true" box="[565,690,1164,1190]" pageId="14" pageNumber="15">Sieg, 1976</emphasis>
</bibRefCitation>
</taxonomicName>
</paragraph>
</subSubSection>
</treatment>
</document>