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<document id="5A94A866D91D768134FF5D442158771F" ID-DOI="10.5281/zenodo.181729" ID-GBIF-Dataset="4f3eeed9-6817-4a8f-8464-95f84391260e" ID-ISSN="1175-5326" ID-Zenodo-Dep="181729" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459838520192" checkinUser="plazi" docAuthor="Grave, De" docDate="2008" docId="03C5878E63189F13FF46FA474E00C9AA" docLanguage="en" docName="zt01750p052.pdf" docOrigin="Zootaxa 1750" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Leptathanas powelli Grave, 2008, sp. nov." docType="treatment" docVersion="9" lastPageNumber="51" masterDocId="FFFCFFF6631A9F1BFFD1FFD04D64CE48" masterDocTitle="Leptathanas powelli gen. nov., sp. nov, a new infaunal alpheid shrimp associated with upogebiid mudshrimps in Nigeria (Crustacea, Decapoda)" masterLastPageNumber="52" masterPageNumber="43" pageNumber="45" updateTime="1698224011786" updateUser="plazi">
<mods:mods id="CB43CB561FBE9CB839E47DFD1C74455A" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="682EE616510BE3BC2D57A721156B5951">
<mods:title id="706911D7E35CF6351BD812E0096266D7">Leptathanas powelli gen. nov., sp. nov, a new infaunal alpheid shrimp associated with upogebiid mudshrimps in Nigeria (Crustacea, Decapoda)</mods:title>
</mods:titleInfo>
<mods:name id="BC6559B7F57CF9EC5ADB5A445BAC2441" type="personal">
<mods:role id="52DAD2FEE6559DBB2B34BDF44E786965">
<mods:roleTerm id="6FDE95649B163C2E3F5EF03B38AA10FE">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="36C608E8AF19FFBF0DCF5D08FCBE3560">Grave, De</mods:namePart>
</mods:name>
<mods:typeOfResource id="00A85F1443DCEFC8E4D510D933A5BFDE">text</mods:typeOfResource>
<mods:relatedItem id="DAA335BCCAC4CF882AB1CBC616072846" type="host">
<mods:titleInfo id="50325189ED8EC2EF11F2820C6D4EB044">
<mods:title id="0F3716E2AD98BEFD4F4987ECBD6A5CB0">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="4C94E80CED73E5E80B45EAAB673B6D01">
<mods:date id="1163D783DB5F115F5FC30500BAF41768">2008</mods:date>
<mods:detail id="C2312DF01EA0F7932DFA3152D10FDE60" type="volume">
<mods:number id="42D31B453CD289E5FF6D98858783EAA4">1750</mods:number>
</mods:detail>
<mods:extent id="12AA8ACF67AE6658F12C803A305972D7" unit="page">
<mods:start id="9E7A7A54C6E277375E3127BF55E46067">43</mods:start>
<mods:end id="CE2264935CE626781AC4371B78220F56">52</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="85DD47A9D901DCD79823FFEECE183D07">journal article</mods:classification>
<mods:identifier id="6BD9904203DDDEC034F3540FE52FF83B" type="DOI">10.5281/zenodo.181729</mods:identifier>
<mods:identifier id="C441BA94F75CFB635421821C6FD6AAD1" type="GBIF-Dataset">4f3eeed9-6817-4a8f-8464-95f84391260e</mods:identifier>
<mods:identifier id="9F1FCA89FD8EECA591401C79B40023F3" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="E49CD492C606B8C28E8D8B5CD13BDFD8" type="Zenodo-Dep">181729</mods:identifier>
</mods:mods>
<treatment id="03C5878E63189F13FF46FA474E00C9AA" ID-DOI="http://doi.org/10.5281/zenodo.6228012" ID-GBIF-Taxon="119359530" ID-Zenodo-Dep="6228012" LSID="urn:lsid:plazi:treatment:03C5878E63189F13FF46FA474E00C9AA" httpUri="http://treatment.plazi.org/id/03C5878E63189F13FF46FA474E00C9AA" lastPageId="8" lastPageNumber="51" pageId="2" pageNumber="45">
<subSubSection id="C376651363189F19FF46FA474C60CB9C" pageId="2" pageNumber="45" type="nomenclature">
<paragraph id="8BD3369863189F19FF46FA474C8BCBF9" blockId="2.[151,495,1431,1492]" box="[151,495,1431,1457]" pageId="2" pageNumber="45">
<heading id="D09B81F463189F19FF46FA474C8BCBF9" bold="true" box="[151,495,1431,1457]" fontSize="11" level="1" pageId="2" pageNumber="45" reason="1">
<emphasis id="B918EA8A63189F19FF46FA474C8BCBF9" bold="true" box="[151,495,1431,1457]" pageId="2" pageNumber="45">
<taxonomicName id="4C6C4D1B63189F19FF46FA474CEECBF9" ID-CoL="85TJW" box="[151,394,1431,1457]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="45" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B918EA8A63189F19FF46FA474CEECBF9" bold="true" box="[151,394,1431,1457]" italics="true" pageId="2" pageNumber="45">Leptathanas powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22B57F163189F19FE40FA474C8BCBF9" box="[401,495,1431,1457]" pageId="2" pageNumber="45" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BD3369863189F19FF46FA6A4C60CB9C" blockId="2.[151,495,1431,1492]" box="[151,260,1466,1492]" pageId="2" pageNumber="45">
<figureCitation id="13572A1D63189F19FF46FA6A4C60CB9C" box="[151,260,1466,1492]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStartId-0="3.[151,255,1941,1965]" captionStartId-1="4.[151,255,1932,1956]" captionStartId-2="5.[151,255,1854,1878]" captionStartId-3="6.[151,255,1626,1650]" captionStartId-4="7.[151,255,1637,1661]" captionTargetBox-0="[191,1386,195,1897]" captionTargetBox-1="[161,1401,199,1908]" captionTargetBox-2="[166,1411,204,1806]" captionTargetBox-3="[185,1370,189,1625]" captionTargetBox-4="[176,1376,300,1606]" captionTargetId-0="figure@3.[179,1425,189,1929]" captionTargetId-1="figure@4.[155,1431,194,1908]" captionTargetId-2="figure@5.[160,1427,194,1830]" captionTargetId-3="figure@6.[182,1408,184,1631]" captionTargetId-4="figure@7.[154,1389,288,1607]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionTargetPageId-4="7" captionText-0="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." captionText-1="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." captionText-2="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." captionText-3="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." captionText-4="FIGURE 5. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D 49914 - 3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E – F), 0.25 mm (D, G), 0.1 mm (B)." httpUri-0="https://zenodo.org/record/181730/files/figure.png" httpUri-1="https://zenodo.org/record/181731/files/figure.png" httpUri-2="https://zenodo.org/record/181732/files/figure.png" httpUri-3="https://zenodo.org/record/181733/files/figure.png" httpUri-4="https://zenodo.org/record/181734/files/figure.png" pageId="2" pageNumber="45">Figs. 1–5</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C376651363189F19FF46F9D04F6CC85F" box="[151,520,1536,1559]" pageId="2" pageNumber="45" type="description">
<paragraph id="8BD3369863189F19FF46F9D04F6CC85F" blockId="2.[151,520,1536,1559]" box="[151,520,1536,1559]" pageId="2" pageNumber="45">
<treatmentCitationGroup id="AB7C11B663189F19FF46F9D04F6CC85F" box="[151,520,1536,1559]" pageId="2" pageNumber="45">
<taxonomicName id="4C6C4D1B63189F19FF46F9D04C7EC85F" ID-CoL="84PMC" box="[151,282,1536,1559]" class="Malacostraca" family="Alpheidae" genus="Leptalpheus" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="45" phylum="Arthropoda" rank="genus">
<emphasis id="B918EA8A63189F19FF46F9D04C7EC85F" box="[151,282,1536,1559]" italics="true" pageId="2" pageNumber="45">Leptalpheus</emphasis>
</taxonomicName>
sp.
<treatmentCitation id="0ACD108963189F19FE94F9D04F6CC85F" author="Powell" box="[325,520,1536,1559]" page="236" pageId="2" pageNumber="45" year="1985">
<bibRefCitation id="EFFD4B6963189F19FE94F9D04CB1C85F" author="Powell" box="[325,469,1536,1559]" pageId="2" pageNumber="52" refString="Powell, C. B. (1985) The decapod crustaceans of the Niger Delta. In: Wilcox, B. H. R &amp; Powell, C. B. The mangrove system of the Niger delta: Proceedings of a workshop, 226 - 238. University of Port Harcourt Press, Port Harcourt." type="book chapter" year="1985">Powell, 1985</bibRefCitation>
: 236
</treatmentCitation>
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C376651363189F19FF46F9974CD4C91A" pageId="2" pageNumber="45" type="materials_examined">
<paragraph id="8BD3369863189F19FF46F9974E2FC892" blockId="2.[151,1436,1607,1994]" pageId="2" pageNumber="45">
<emphasis id="B918EA8A63189F19FF46F9974CF5C829" bold="true" box="[151,401,1607,1633]" pageId="2" pageNumber="45">Material examined:</emphasis>
<typeStatus id="54D7883A63189F19FE4CF9984F6BC82A" box="[413,527,1608,1634]" pageId="2" pageNumber="45" type="holotype">Holotype</typeStatus>
: ovigerous female (cl
<quantity id="4C949B7D63189F19FCF2F9984EE2C82A" box="[803,902,1608,1634]" metricMagnitude="-3" metricUnit="m" metricValue="3.2" pageId="2" pageNumber="45" unit="mm" value="3.2">3.2 mm</quantity>
),
<collectingCountry id="F37B760863189F19FC4EF9984E9EC82A" box="[927,1018,1608,1634]" name="Nigeria" pageId="2" pageNumber="45">Nigeria</collectingCountry>
,
<collectingCountry id="F37B760863189F19FBD8F9984928C82A" box="[1033,1100,1608,1634]" name="Niger" pageId="2" pageNumber="45">Niger</collectingCountry>
delta, Eagle Island, Bonny River system, leg. C.B. Powell,
<date id="FFD2105863189F19FDCDF9A04E6CC8C2" box="[540,776,1648,1674]" pageId="2" pageNumber="45" value="1979-09-20">20 September 1979</date>
, from burrows of
<taxonomicName id="4C6C4D1B63189F19FC37F9A049D3C8C1" box="[998,1207,1648,1673]" class="Malacostraca" family="Upogebiidae" genus="Upogebia" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="45" phylum="Arthropoda" rank="species" species="furcata">
<emphasis id="B918EA8A63189F19FC37F9A049D3C8C1" box="[998,1207,1648,1673]" italics="true" pageId="2" pageNumber="45">Upogebia furcata</emphasis>
</taxonomicName>
(
<collectionCode id="ED7DAE5D63189F19FB19F9A04846C8C2" LSID="urn:lsid:biocol.org:col:34992" box="[1224,1314,1648,1674]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="2" pageNumber="45">RMNH</collectionCode>
D52026).
<typeStatus id="54D7883A63189F19FF46F9484C6AC8FA" box="[151,270,1688,1714]" pageId="2" pageNumber="45" type="paratype">Paratypes</typeStatus>
:
<specimenCount id="9D6AFD1163189F19FECDF9484CA5C8FA" box="[284,449,1688,1714]" pageId="2" pageNumber="45" type="generic">13 specimens</specimenCount>
, males and females (cl
<quantity id="4C949B7D63189F19FD35F9484E1DC8FA" box="[740,889,1688,1714]" metricMagnitude="-3" metricUnit="m" metricValue="2.6" metricValueMax="3.4" metricValueMin="1.8" pageId="2" pageNumber="45" unit="mm" value="2.6" valueMax="3.4" valueMin="1.8">1.8–3.4 mm</quantity>
), from same lot/locality (
<collectionCode id="ED7DAE5D63189F19FB7CF9484863C8FA" LSID="urn:lsid:biocol.org:col:34992" box="[1197,1287,1688,1714]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="2" pageNumber="45">RMNH</collectionCode>
D49914);
<specimenCount id="9D6AFD1163189F19FA5CF9484C75C892" pageId="2" pageNumber="45" type="generic">5 specimens</specimenCount>
from same lot/locality (
<collectionCode id="ED7DAE5D63189F19FDFBF9104FFFC892" box="[554,667,1728,1754]" pageId="2" pageNumber="45">OUMNH</collectionCode>
2008-02-001).
</paragraph>
<paragraph id="8BD3369863189F19FF17F9374CD4C91A" blockId="2.[151,1436,1607,1994]" pageId="2" pageNumber="45">
<emphasis id="B918EA8A63189F19FF17F9374CA6C949" bold="true" box="[198,450,1767,1793]" pageId="2" pageNumber="45">Derivation of name:</emphasis>
Named after the collector of the
<typeStatus id="54D7883A63189F19FC9BF9384E18C94A" box="[842,892,1768,1794]" pageId="2" pageNumber="45">type</typeStatus>
series, C. B. Powell (
<date id="FFD2105863189F19FBAFF9384863C94A" box="[1150,1287,1768,1794]" pageId="2" pageNumber="45" value="1943" valueMax="1998">1943–1998</date>
), in recognition of his considerable field collecting skills and his advancement of our knowledge of Nigerian
<taxonomicName id="4C6C4D1B63189F19FAF6F8C048F8C962" box="[1319,1436,1808,1834]" class="Malacostraca" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="45" phylum="Arthropoda" rank="order">Decapoda</taxonomicName>
(see
<bibRefCitation id="EFFD4B6963189F19FF1CF8E84CC0C91A" author="Williamson" box="[205,420,1848,1874]" pageId="2" pageNumber="52" refString="Williamson, K. (2003) Charles Bruce Powell 1943 - 1998. Crustaceana, 75, 1275 - 1278." type="journal article" year="2003">Williamson, 2003</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C376651363189F13FF17F88F4CAAC90A" lastPageId="8" lastPageNumber="51" pageId="2" pageNumber="45" type="description">
<paragraph id="8BD3369863189F1DFF17F88F4805C90F" blockId="2.[151,1436,1607,1994]" lastBlockId="6.[151,1436,1800,2020]" lastPageId="6" lastPageNumber="49" pageId="2" pageNumber="45">
<emphasis id="B918EA8A63189F19FF17F88F4C05C931" bold="true" box="[198,353,1887,1913]" pageId="2" pageNumber="45">Description:</emphasis>
Body moderately elongate (
<figureCitation id="13572A1D63189F19FD01F8B04E73C932" box="[720,791,1888,1914]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="2" pageNumber="45">Fig. 1</figureCitation>
A), not compressed laterally, glabrous. Orbital teeth absent, pterygostomial angle rounded, branchiostegal margin sparsely furnished with setae, cardiac notch well developed (
<figureCitation id="13572A1D63189F19FECEF8604C05C982" box="[287,353,1968,1994]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="2" pageNumber="45">Fig. 1</figureCitation>
D). Frontal margin with shallow, triangular rostrum (
<figureCitation id="13572A1D63189F19FC06F860497DC982" box="[983,1049,1968,1994]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="2" pageNumber="45">Fig. 1</figureCitation>
B, C), rostral carina weakly developed, extending to mid-length of carapace. Eyes concealed in dorsal or lateral view (
<figureCitation id="13572A1D631C9F1DFB61F8D84996C96A" box="[1200,1266,1800,1826]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="6" pageNumber="49">Fig. 1</figureCitation>
B, C), without anterior projections, cornea well developed. Ocellar beak not conspicuous. Epistomial sclerite unarmed.
</paragraph>
<caption id="DF13661063199F18FF46F8454CF2C9BA" httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="3" pageNumber="46" targetBox="[191,1386,195,1897]" targetPageId="3">
<paragraph id="8BD3369863199F18FF46F8454CF2C9BA" blockId="3.[151,1436,1941,2034]" pageId="3" pageNumber="46">
<emphasis id="B918EA8A63199F18FF46F8454C7DC9E5" bold="true" box="[151,281,1941,1965]" pageId="3" pageNumber="46">FIGURE 1.</emphasis>
<taxonomicName id="4C6C4D1B63199F18FEF0F8464C9FC9E5" box="[289,507,1942,1965]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="3" pageNumber="46" phylum="Arthropoda" rank="species" species="powelli" status="gen. nov.">
<emphasis id="B918EA8A63199F18FEF0F8464C9FC9E5" box="[289,507,1942,1965]" italics="true" pageId="3" pageNumber="46">Leptathanas powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A63199F18FDD3F8454F02C9E5" bold="true" box="[514,614,1941,1965]" pageId="3" pageNumber="46">
<taxonomicNameLabel id="A22B57F163199F18FDD3F8454F02C9E5" box="[514,614,1941,1965]" pageId="3" pageNumber="46" rank="genus">gen. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis id="B918EA8A63199F18FDA5F8454FAFC9E5" bold="true" box="[628,715,1941,1965]" pageId="3" pageNumber="46">sp. nov.</emphasis>
Holotype ovigerous female (cl 3.2 mm, RMNH
<accessionNumber id="943FAB7B63199F18FB06F8464855C9E5" box="[1239,1329,1942,1965]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/D00000" pageId="3" pageNumber="46" type="EnaNcbi">D00000</accessionNumber>
). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm.
</paragraph>
</caption>
<caption id="DF136610631E9F1FFF46F85C4866C9A1" httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="4" pageNumber="47" targetBox="[161,1401,199,1908]" targetPageId="4">
<paragraph id="8BD33698631E9F1FFF46F85C4866C9A1" blockId="4.[151,1436,1932,2025]" pageId="4" pageNumber="47">
<emphasis id="B918EA8A631E9F1FFF46F85C4C7CC9EC" bold="true" box="[151,280,1932,1956]" pageId="4" pageNumber="47">FIGURE 2.</emphasis>
<taxonomicName id="4C6C4D1B631E9F1FFECEF85C4C9CC9EB" box="[287,504,1932,1955]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="47" phylum="Arthropoda" rank="species" species="powelli" status="gen. nov.">
<emphasis id="B918EA8A631E9F1FFECEF85C4C9CC9EB" box="[287,504,1932,1955]" italics="true" pageId="4" pageNumber="47">Leptathanas powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A631E9F1FFE2FF85C4F05C9EC" bold="true" box="[510,609,1932,1956]" pageId="4" pageNumber="47">
<taxonomicNameLabel id="A22B57F1631E9F1FFE2FF85C4F05C9EC" box="[510,609,1932,1956]" pageId="4" pageNumber="47" rank="genus">gen. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis id="B918EA8A631E9F1FFDBFF85C4FA0C9EC" bold="true" box="[622,708,1932,1956]" pageId="4" pageNumber="47">sp. nov.</emphasis>
Paratype ovigerous female (cl 4.0 mm, RMNH D49914-1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm.
</paragraph>
</caption>
<caption id="DF136610631F9F1EFF46F8EE4FA5C9F5" httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="5" pageNumber="48" targetBox="[166,1411,204,1806]" targetPageId="5">
<paragraph id="8BD33698631F9F1EFF46F8EE4FA5C9F5" blockId="5.[151,1436,1854,1981]" pageId="5" pageNumber="48">
<emphasis id="B918EA8A631F9F1EFF46F8EE4C78C91E" bold="true" box="[151,284,1854,1878]" pageId="5" pageNumber="48">FIGURE 3.</emphasis>
<taxonomicName id="4C6C4D1B631F9F1EFEF4F8EE4F66C91D" box="[293,514,1854,1877]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="48" phylum="Arthropoda" rank="species" species="powelli" status="gen. nov.">
<emphasis id="B918EA8A631F9F1EFEF4F8EE4F66C91D" box="[293,514,1854,1877]" italics="true" pageId="5" pageNumber="48">Leptathanas powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A631F9F1EFDDAF8EE4F16C91E" bold="true" box="[523,626,1854,1878]" pageId="5" pageNumber="48">
<taxonomicNameLabel id="A22B57F1631F9F1EFDDAF8EE4F16C91E" box="[523,626,1854,1878]" pageId="5" pageNumber="48" rank="genus">gen. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis id="B918EA8A631F9F1EFD53F8EE4FBEC91E" bold="true" box="[642,730,1854,1878]" pageId="5" pageNumber="48">sp. nov.</emphasis>
Paratype ovigerous female (cl 3.0 mm, RMNH D49914-2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A–C, E–G), 0.25 mm (H).
</paragraph>
</caption>
<caption id="DF136610631C9F1DFF46F98A4FC5C891" httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="6" pageNumber="49" targetBox="[185,1370,189,1625]" targetPageId="6">
<paragraph id="8BD33698631C9F1DFF46F98A4FC5C891" blockId="6.[151,1437,1626,1753]" pageId="6" pageNumber="49">
<emphasis id="B918EA8A631C9F1DFF46F98A4C7DC83A" bold="true" box="[151,281,1626,1650]" pageId="6" pageNumber="49">FIGURE 4.</emphasis>
<taxonomicName id="4C6C4D1B631C9F1DFEF1F98A4C9EC839" box="[288,506,1626,1649]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="49" phylum="Arthropoda" rank="species" species="powelli" status="gen. nov.">
<emphasis id="B918EA8A631C9F1DFEF1F98A4C9EC839" box="[288,506,1626,1649]" italics="true" pageId="6" pageNumber="49">Leptathanas powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A631C9F1DFDD0F98A4F01C83A" bold="true" box="[513,613,1626,1650]" pageId="6" pageNumber="49">
<taxonomicNameLabel id="A22B57F1631C9F1DFDD0F98A4F01C83A" box="[513,613,1626,1650]" pageId="6" pageNumber="49" rank="genus">gen. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis id="B918EA8A631C9F1DFDA2F98A4FADC83A" bold="true" box="[627,713,1626,1650]" pageId="6" pageNumber="49">sp. nov.</emphasis>
Paratype ovigerous female (cl 3.0 mm, RMNH D49914-2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E–F), 0.25 mm (D, G).
</paragraph>
</caption>
<paragraph id="8BD33698631C9F1DFF17F88249DCC9DC" blockId="6.[151,1436,1800,2020]" pageId="6" pageNumber="49">
Pleura of first through to fourth abdominal somites rounded, those of fifth and sixth somites somewhat angular (
<figureCitation id="13572A1D631C9F1DFF2EF8AA4C24C9DC" box="[255,320,1914,1940]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="6" pageNumber="49">Fig. 1</figureCitation>
E); sixth somite with subtriangular articulated plate at posteroventral angle.
</paragraph>
<paragraph id="8BD33698631C9F1CFF14F872482DCF4A" blockId="6.[151,1436,1800,2020]" lastBlockId="7.[151,1436,152,258]" lastPageId="7" lastPageNumber="50" pageId="6" pageNumber="49">
Antennular peduncle moderately stout (
<figureCitation id="13572A1D631C9F1DFD48F8724FB2C9F4" box="[665,726,1954,1980]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="6" pageNumber="49">Fig 1</figureCitation>
C, 3A), second segment shorter than first; stylocerite reaching to mesial margin of second segment, distally acute; lateral flagellum biramous, accessory branch reduced, consisting of two segments furnished with groups of aesthetascs (
<figureCitation id="13572A1D631D9F1CFC6DFF484E9BCEFA" box="[956,1023,152,178]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="7" pageNumber="50">Fig 3</figureCitation>
A). Antenna with basicerite stout, armed with strong ventrolateral tooth; scaphocerite (
<figureCitation id="13572A1D631D9F1CFCD5FF104E2ECE92" box="[772,842,192,218]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="7" pageNumber="50">Fig. 3</figureCitation>
B) short, square, anterior margin of blade convex, not extending beyond distolateral tooth; carpocerite robust, exceeding to distal margin of scaphocerite.
</paragraph>
<caption id="DF136610631D9F1CFF46F9B54949C8AC" httpUri="https://zenodo.org/record/181734/files/figure.png" pageId="7" pageNumber="50" targetBox="[176,1376,300,1606]" targetPageId="7">
<paragraph id="8BD33698631D9F1CFF46F9B54949C8AC" blockId="7.[151,1436,1637,1764]" pageId="7" pageNumber="50">
<emphasis id="B918EA8A631D9F1CFF46F9B54C7DC835" bold="true" box="[151,281,1637,1661]" pageId="7" pageNumber="50">FIGURE 5.</emphasis>
<taxonomicName id="4C6C4D1B631D9F1CFEF1F9B54C9EC834" box="[288,506,1637,1660]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="powelli" status="gen. nov.">
<emphasis id="B918EA8A631D9F1CFEF1F9B54C9EC834" box="[288,506,1637,1660]" italics="true" pageId="7" pageNumber="50">Leptathanas powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A631D9F1CFDD1F9B54F01C835" bold="true" box="[512,613,1637,1661]" pageId="7" pageNumber="50">
<taxonomicNameLabel id="A22B57F1631D9F1CFDD1F9B54F01C835" box="[512,613,1637,1661]" pageId="7" pageNumber="50" rank="genus">gen. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis id="B918EA8A631D9F1CFDA3F9B54FACC835" bold="true" box="[626,712,1637,1661]" pageId="7" pageNumber="50">sp. nov.</emphasis>
Paratype ovigerous female (cl 3.0 mm, RMNH D49914-2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D49914-3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E–F), 0.25 mm (D, G), 0.1 mm (B).
</paragraph>
</caption>
<paragraph id="8BD33698631D9F13FF14F8C84FCCCF1A" blockId="7.[151,1436,1816,2002]" lastBlockId="8.[151,1437,152,2018]" lastPageId="8" lastPageNumber="51" pageId="7" pageNumber="50">
Mouthparts fairly typical for family. Mandible (
<figureCitation id="13572A1D631D9F1CFD26F8C84E58C97A" box="[759,828,1816,1842]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="7" pageNumber="50">Fig. 2</figureCitation>
A) with two-segmented palp; molar process as illustrated; incisor process with five subtriangular teeth, second ventral tooth largest. Maxillule (
<figureCitation id="13572A1D631D9F1CFB29F8904825C912" box="[1272,1345,1856,1882]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="7" pageNumber="50">Fig. 2</figureCitation>
B) with bilobed palp, dorsal lobe without setae, ventral lobe with single plumose seta; ventral endite with pappose setae. Maxilla (
<figureCitation id="13572A1D631D9F1CFE81F8404CFCC9E2" box="[336,408,1936,1962]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="7" pageNumber="50">Fig. 2</figureCitation>
C) with moderately broad scaphognathite; endopod small, unsegmented; dorsal endite not subdivided. First maxilliped (
<figureCitation id="13572A1D631D9F1CFDF8F8684F14C99A" box="[553,624,1976,2002]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="7" pageNumber="50">Fig. 2</figureCitation>
D) with moderately expanded caridean lobe on exopod; endopod not segmented, terminally with single robust plumose seta, laterally with several less robust plumose setae; epipod large, ear-shaped, slightly subdivided. Second maxilliped (
<figureCitation id="13572A1D63129F13FC54FF104EAFCE92" box="[901,971,192,218]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="8" pageNumber="51">Fig. 2</figureCitation>
E) not particularly modified, with elongate epipod. Third maxilliped (
<figureCitation id="13572A1D63129F13FDFEFF384F18CF4A" box="[559,636,232,258]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="8" pageNumber="51">Fig. 2</figureCitation>
F) pediform, moderately slender; lateral plate acutely produced; penultimate segment about 2.5 times as long as wide; tip of ultimate segment tapered, with three cuspidate setae on apex (
<figureCitation id="13572A1D63129F13FE95FEE84CEFCF1A" box="[324,395,312,338]" captionStart="FIGURE 2" captionStartId="4.[151,255,1932,1956]" captionTargetBox="[161,1401,199,1908]" captionTargetId="figure@4.[155,1431,194,1908]" captionTargetPageId="4" captionText="FIGURE 2. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 4.0 mm, RMNH D 49914 - 1). A; mandible, mesial view; B: maxillule, lateral view; C: maxilla, lateral view; D; first maxilliped, lateral view; E; second maxilliped, lateral view; F: third maxilliped, lateral view; G: same, tip of ultimate segment. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/181731/files/figure.png" pageId="8" pageNumber="51">Fig. 2</figureCitation>
G); arthrobranch absent.
</paragraph>
<paragraph id="8BD3369863129F13FF14FEB04C77CCF2" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="51">
First pereiopods unequal in size, asymmetrical in shape (
<figureCitation id="13572A1D63129F13FCAFFEB04EA3CF32" box="[894,967,352,378]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
C, D), carried flexed when not in use. Major cheliped (
<figureCitation id="13572A1D63129F13FE8DFE584CC8CFEA" box="[348,428,392,418]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Figs. 3</figureCitation>
D–H) robust; basis with minute exopod (
<figureCitation id="13572A1D63129F13FC47FE584EB8CFEA" box="[918,988,392,418]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
E); coxa, basis and ischium unarmed; merus about 2.5 times as long as wide, mesially excavated (
<figureCitation id="13572A1D63129F13FC84FE604EFECF82" box="[853,922,432,458]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
F), lateral margin distinctly crenulated (
<figureCitation id="13572A1D63129F13FABDFE604DC1CFBA" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
G); carpus vase-shaped; chela robust, ventral margin of palm crenulated (
<figureCitation id="13572A1D63129F13FBD6FE084928CFBA" box="[1031,1100,472,498]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
E); linea impressa and adhesive discs absent; fingers about 0.35 times length of palm, cutting edges of pollex and dactylus each with large tooth fitting in a hiatus on opposed margin (
<figureCitation id="13572A1D63129F13FD4AFDF84F84CC0A" box="[667,736,552,578]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
H), finger tips blunt, broad. Minor cheliped (
<figureCitation id="13572A1D63129F13FB21FDF84851CC0A" box="[1264,1333,552,578]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
C) much weaker than major cheliped; basis with minute exopod (
<figureCitation id="13572A1D63129F13FCEDFD804EE1CC22" box="[828,901,592,618]" captionStart="FIGURE 3" captionStartId="5.[151,255,1854,1878]" captionTargetBox="[166,1411,204,1806]" captionTargetId="figure@5.[160,1427,194,1830]" captionTargetPageId="5" captionText="FIGURE 3. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: antennule, dorsal view; B: scaphocerite, dorsal view; C: left (minor) cheliped, mesial view; D: right (major) cheliped, mesial view; E: same, detail of coxa; F: same, detail of merus; G: same, chela in lateral view; H: same, fingers. Scale bars: 1 mm (D), 0.5 mm (A – C, E – G), 0.25 mm (H)." httpUri="https://zenodo.org/record/181732/files/figure.png" pageId="8" pageNumber="51">Fig. 3</figureCitation>
C); coxa, basis and ischium unarmed, merus about 2.7 times as long as wide, carpus slightly longer than propodus; fingers about as along as palm, with broad tips.
</paragraph>
<paragraph id="8BD3369863129F13FF14FD18498CCA3A" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="51">
Second pereiopod (
<figureCitation id="13572A1D63129F13FE7BFD184C94CCAA" box="[426,496,712,738]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Fig. 4</figureCitation>
A) relatively short, stout; ischium shorter than merus, mesially somewhat excavated; merus mesially depressed; carpus with five segments, segment length ratio approximately:; chela simple, fingers as long as palm, tips conical, without additional teeth (
<figureCitation id="13572A1D63129F13FC07FCC84947CD7A" box="[982,1059,792,818]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Fig. 4</figureCitation>
B). Third pereiopod (
<figureCitation id="13572A1D63129F13FAF8FCC8481BCD7A" box="[1321,1407,792,818]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Figs. 4</figureCitation>
C) relatively stout; basis with slender cuspidate seta disto-dorsally; ischium unarmed ventrally, with slender cuspidate seta disto-dorsally; merus unarmed, about 3.5 times as long as ischium; carpus about 0.6 times as long as merus, with one ventrolateral cuspidate seta disto-ventrally; propodus subequal to carpus in length, with three ventral cuspidate setae and one disto-ventral cuspidate seta proximal to dactylus (
<figureCitation id="13572A1D63129F13FB5CFC6849B7CD9A" box="[1165,1235,952,978]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Fig. 4</figureCitation>
D); dactylus simple, subconical, curved, about 0.5 times as long as propodus. Fourth pereiopod (
<figureCitation id="13572A1D63129F13FBA6FC3049A5CDB2" box="[1143,1217,992,1018]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Fig. 4</figureCitation>
E) similar to third pereiopod, with fewer ventral cuspidate setae on propodus. Fifth pereiopod (
<figureCitation id="13572A1D63129F13FBF7FBD84908CA6A" box="[1062,1132,1032,1058]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Fig. 4</figureCitation>
F) more gracile than third and fourth; propodus with two ventral cuspidate setae; setal brush well developed (
<figureCitation id="13572A1D63129F13FBB3FBE049CCCA02" box="[1122,1192,1072,1098]" captionStart="FIGURE 4" captionStartId="6.[151,255,1626,1650]" captionTargetBox="[185,1370,189,1625]" captionTargetId="figure@6.[182,1408,184,1631]" captionTargetPageId="6" captionText="FIGURE 4. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: second pereiopod, mesial view; B: same, tip of chela; C: third pereiopod, mesial view; D: same, distal propodus and dactylus; E: fourth pereiopod, mesial view; F: fifth pereiopod, mesial view; G: same, distal propodus and dactylus. Scale bars: 1 mm (B), 0.5 mm (A, C, E – F), 0.25 mm (D, G)." httpUri="https://zenodo.org/record/181733/files/figure.png" pageId="8" pageNumber="51">Fig. 4</figureCitation>
G), with two rows of thick pappose setae; dactylus slender, curved, slightly more than 0.6 times length of propodus.
</paragraph>
<paragraph id="8BD3369863129F13FF14FB50487ACA8A" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="51">
Male second pleopod (
<figureCitation id="13572A1D63129F13FE0BFB504F46CAD2" box="[474,546,1152,1178]" captionStart="FIGURE 5" captionStartId="7.[151,255,1637,1661]" captionTargetBox="[176,1376,300,1606]" captionTargetId="figure@7.[154,1389,288,1607]" captionTargetPageId="7" captionText="FIGURE 5. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D 49914 - 3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E – F), 0.25 mm (D, G), 0.1 mm (B)." httpUri="https://zenodo.org/record/181734/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
F) with appendix masculina shorter than appendix interna, furnished with five distal and subdistal simple setae (
<figureCitation id="13572A1D63129F13FD82FB784FFDCA8A" box="[595,665,1192,1218]" captionStart="FIGURE 5" captionStartId="7.[151,255,1637,1661]" captionTargetBox="[176,1376,300,1606]" captionTargetId="figure@7.[154,1389,288,1607]" captionTargetPageId="7" captionText="FIGURE 5. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D 49914 - 3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E – F), 0.25 mm (D, G), 0.1 mm (B)." httpUri="https://zenodo.org/record/181734/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
G); female second pleopod with appendix interna only.
</paragraph>
<paragraph id="8BD3369863129F13FF14FB004C7AC84A" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="51">
Uropods slightly longer than telson (
<figureCitation id="13572A1D63129F13FD50FB004FA1CAA2" box="[641,709,1232,1258]" captionStart="FIGURE 1" captionStartId="3.[151,255,1941,1965]" captionTargetBox="[191,1386,195,1897]" captionTargetId="figure@3.[179,1425,189,1929]" captionTargetPageId="3" captionText="FIGURE 1. Leptathanas powelli gen. nov., sp. nov. Holotype ovigerous female (cl 3.2 mm, RMNH D 00000). A: habitus, lateral view; B: frontal region, lateral view; C: frontal region, dorsal view; D; carapace, lateral view; E: pleon, lateral view. Scale bars: 1 mm." httpUri="https://zenodo.org/record/181730/files/figure.png" pageId="8" pageNumber="51">Fig. 1</figureCitation>
E); lateral lobe of protopod distally concave, furnished with five-six stout cuspidate setae; endopod and exopod subequal in length, latter with incomplete diaeresis; distolateral spine submarginal (
<figureCitation id="13572A1D63129F13FE1FFAF04F70CB72" box="[462,532,1312,1338]" captionStart="FIGURE 5" captionStartId="7.[151,255,1637,1661]" captionTargetBox="[176,1376,300,1606]" captionTargetId="figure@7.[154,1389,288,1607]" captionTargetPageId="7" captionText="FIGURE 5. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D 49914 - 3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E – F), 0.25 mm (D, G), 0.1 mm (B)." httpUri="https://zenodo.org/record/181734/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
C). Telson broad, approximately 0.7 times as wide as long, tapering distally; dorsal surface with two pairs of cuspidate setae, distant from lateral margin, anterior pair situated at about 0.25 of telson length, posterior pair at about 0.65 of telson length; posterior margin (
<figureCitation id="13572A1D63129F13FBAFFAA049A0CBC2" box="[1150,1220,1392,1418]" captionStart="FIGURE 5" captionStartId="7.[151,255,1637,1661]" captionTargetBox="[176,1376,300,1606]" captionTargetId="figure@7.[154,1389,288,1607]" captionTargetPageId="7" captionText="FIGURE 5. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D 49914 - 3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E – F), 0.25 mm (D, G), 0.1 mm (B)." httpUri="https://zenodo.org/record/181734/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
E) somewhat convex, each posterolateral angle with pair of cuspidate setae, mesial ones about twice as long as lateral ones; central portion of posterior margin between cuspidate setae with 10–12 plumose setae (
<figureCitation id="13572A1D63129F13FB79FA104994CB92" box="[1192,1264,1472,1498]" captionStart="FIGURE 5" captionStartId="7.[151,255,1637,1661]" captionTargetBox="[176,1376,300,1606]" captionTargetId="figure@7.[154,1389,288,1607]" captionTargetPageId="7" captionText="FIGURE 5. Leptathanas powelli gen. nov., sp. nov. Paratype ovigerous female (cl 3.0 mm, RMNH D 49914 - 2). A: uropod, dorsal view; B: same, protopod; C: same, lateral portion of diaeresis; D: telson, dorsal view; E: same, detail of posterior margin. Paratype male (cl 2.25 mm, RMNH D 49914 - 3). F: second pleopod, mesial view; G: same, appendix interna and masculina. Scale bars: 0.5 mm (A, C, E – F), 0.25 mm (D, G), 0.1 mm (B)." httpUri="https://zenodo.org/record/181734/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
E); anal tubercles absent.
</paragraph>
<paragraph id="8BD3369863129F13FF17F9DF4CAAC90A" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="51">
<emphasis id="B918EA8A63129F13FF17F9DF4C57C861" bold="true" box="[198,307,1551,1577]" pageId="8" pageNumber="51">Ecology:</emphasis>
All specimens of
<taxonomicName id="4C6C4D1B63129F13FDC3F9C04FE3C861" box="[530,647,1552,1577]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B918EA8A63129F13FDC3F9C04FE3C861" box="[530,647,1552,1577]" italics="true" pageId="8" pageNumber="51">L. powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A63129F13FD5EF9DF4F89C861" bold="true" box="[655,749,1551,1577]" pageId="8" pageNumber="51">
<taxonomicNameLabel id="A22B57F163129F13FD5EF9DF4F89C861" box="[655,749,1551,1577]" pageId="8" pageNumber="51" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
were collected from burrows of the mudshrimp
<taxonomicName id="4C6C4D1B63129F13FAF9F9C04CB4C81A" authority="Aurivillius, 1898" authorityName="Aurivillius" authorityYear="1898" class="Malacostraca" family="Upogebiidae" genus="Upogebia" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="furcata">
<emphasis id="B918EA8A63129F13FAF9F9C04D8FC819" italics="true" pageId="8" pageNumber="51">Upogebia furcata</emphasis>
(Aurivillius, 1898)
</taxonomicName>
(Thalassinidea,
<taxonomicName id="4C6C4D1B63129F13FD42F9E84E4FC81A" box="[659,811,1592,1618]" class="Malacostraca" family="Upogebiidae" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="family">Upogebiidae</taxonomicName>
) from high and medium salinity mangrove creeks in the Bonny River system of the
<collectingCountry id="F37B760863129F13FDD7F9B04F2DC832" box="[518,585,1632,1658]" name="Niger" pageId="8" pageNumber="51">Niger</collectingCountry>
delta. The general morphology of
<taxonomicName id="4C6C4D1B63129F13FC3AF9B04905C831" box="[1003,1121,1632,1657]" class="Malacostraca" family="Alpheidae" genus="Leptathanas" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B918EA8A63129F13FC3AF9B04905C831" box="[1003,1121,1632,1657]" italics="true" pageId="8" pageNumber="51">L. powelli</emphasis>
</taxonomicName>
<emphasis id="B918EA8A63129F13FBB9F98F49A2C831" bold="true" box="[1128,1222,1631,1657]" pageId="8" pageNumber="51">
<taxonomicNameLabel id="A22B57F163129F13FBB9F98F49A2C831" box="[1128,1222,1631,1657]" pageId="8" pageNumber="51" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
also suggests that this shrimp may indeed be an infaunal “commensal” inhabitant of upogebiid burrows. At least two species of the presumably closely related genus
<taxonomicName id="4C6C4D1B63129F13FD85F9604FB2C881" box="[596,726,1712,1737]" class="Malacostraca" family="Alpheidae" genus="Athanopsis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="genus">
<emphasis id="B918EA8A63129F13FD85F9604FB2C881" box="[596,726,1712,1737]" italics="true" pageId="8" pageNumber="51">Athanopsis</emphasis>
</taxonomicName>
(see above) are known to be associated with echiurans (see Anker
<emphasis id="B918EA8A63129F13FF39F9084C47C8B9" box="[232,291,1752,1777]" italics="true" pageId="8" pageNumber="51">et al.</emphasis>
2005 for review). This hypothesis is also reinforced by the fact that the non-related but morphologically very similar shrimps of the genus
<taxonomicName id="4C6C4D1B63129F13FD7EF8D04E5AC951" box="[687,830,1792,1817]" class="Malacostraca" family="Alpheidae" genus="Leptalpheus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="51" phylum="Arthropoda" rank="genus">
<emphasis id="B918EA8A63129F13FD7EF8D04E5AC951" box="[687,830,1792,1817]" italics="true" pageId="8" pageNumber="51">Leptalpheus</emphasis>
</taxonomicName>
are infaunal associates of various thalassinideans (e.g., Anker
<emphasis id="B918EA8A63129F13FEFBF8F84C01C909" box="[298,357,1832,1857]" italics="true" pageId="8" pageNumber="51">et al.</emphasis>
, 2006b).
</paragraph>
</subSubSection>
<subSubSection id="C376651363129F13FF17F89F4E00C9AA" pageId="8" pageNumber="51" type="distribution">
<paragraph id="8BD3369863129F13FF17F89F4C28C9F2" blockId="8.[151,1437,152,2018]" pageId="8" pageNumber="51">
<emphasis id="B918EA8A63129F13FF17F89F4C0DC921" bold="true" box="[198,361,1871,1897]" pageId="8" pageNumber="51">Distribution:</emphasis>
Presently known only from the
<collectingCountry id="F37B760863129F13FD0FF8804E45C922" box="[734,801,1872,1898]" name="Niger" pageId="8" pageNumber="51">Niger</collectingCountry>
delta in
<collectingCountry id="F37B760863129F13FC55F8804EBBC922" box="[900,991,1872,1898]" name="Nigeria" pageId="8" pageNumber="51">Nigeria</collectingCountry>
, West Africa.
<bibRefCitation id="EFFD4B6963129F13FB5BF8804855C922" author="Powell" box="[1162,1329,1872,1898]" pageId="8" pageNumber="52" refString="Powell, C. B. (1985) The decapod crustaceans of the Niger Delta. In: Wilcox, B. H. R &amp; Powell, C. B. The mangrove system of the Niger delta: Proceedings of a workshop, 226 - 238. University of Port Harcourt Press, Port Harcourt." type="book chapter" year="1985">Powell (1985)</bibRefCitation>
provides no further details of this species’ possible wider distribution, beyond noting its occurrence in brackish water in the
<collectingCountry id="F37B760863129F13FF13F8704C61C9F2" box="[194,261,1952,1978]" name="Niger" pageId="8" pageNumber="51">Niger</collectingCountry>
delta.
</paragraph>
<paragraph id="8BD3369863129F13FF17F8174E00C9AA" blockId="8.[151,1437,152,2018]" box="[198,868,1991,2018]" pageId="8" pageNumber="51">
<emphasis id="B918EA8A63129F13FF17F8174F65C9A9" bold="true" box="[198,513,1991,2017]" pageId="8" pageNumber="51">Taxonomic relationships:</emphasis>
See under generic discussion.
</paragraph>
</subSubSection>
</treatment>
</document>
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