treatments-xml/data/03/D6/13/03D6135B0A0AC57439AC57FCFE9FFB41.xml

<document id="CD5A4162D07281860FCC5AD8E4B20B3A" ID-DOI="10.5281/zenodo.187392" ID-GBIF-Dataset="4d5fb1ce-c4c8-4f47-b3f1-4e43ca86c125" ID-ISSN="1175-5326" ID-Zenodo-Dep="187392" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461068919161" checkinUser="plazi" docAuthor="Ashelby, Christopher W. &amp; Grave, Sammy De" docDate="2009" docId="03D6135B0A0AC57439AC57FCFE9FFB41" docLanguage="en" docName="zt02085p044.pdf" docOrigin="Zootaxa 2085" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Palaemon powelli Ashelby &amp; Grave, 2009, sp. nov." docType="treatment" docVersion="7" lastPageNumber="42" masterDocId="FFEF6B230A0CC57B393B5165FFADFF87" masterDocTitle="A new species of Palaemon (Crustacea, Decapoda, Palaemonidae) from West Africa, with a re-description of Palaemon maculatus (Thallwitz, 1892)" masterLastPageNumber="44" masterPageNumber="27" pageNumber="33" updateTime="1698583909839" updateUser="plazi">
<mods:mods id="654DA0ED0143F5AEEB13FCCBCB674376" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="260BB22A48981010548DA9DECF0E7936">
<mods:title id="18A51FA10C4EE96DA307475A31FD70CA">A new species of Palaemon (Crustacea, Decapoda, Palaemonidae) from West Africa, with a re-description of Palaemon maculatus (Thallwitz, 1892)</mods:title>
</mods:titleInfo>
<mods:name id="8798A3B0F049AB26D74EAA0CC17FE6FA" type="personal">
<mods:role id="AB10599CE8E7E9A817B969CBB934E5B2">
<mods:roleTerm id="5F891B3361AC5937E85ADA55DE527792">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="033D401243B01C1D58F26EB39BC7B660">Ashelby, Christopher W.</mods:namePart>
</mods:name>
<mods:name id="FA06D5EBDC7B155DB8E072B631ABE0BF" type="personal">
<mods:role id="E29F338743491F6960A034493B8E9BAD">
<mods:roleTerm id="3B769A47DFFCC284C7A06C97EA83C4A7">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="1067745F24270AC96C78F74651024180">Grave, Sammy De</mods:namePart>
</mods:name>
<mods:typeOfResource id="4E1DA01A5BFC6A090CC7AC5507F60B3D">text</mods:typeOfResource>
<mods:relatedItem id="82F922D8BA0225E5494E7F5445954984" type="host">
<mods:titleInfo id="28A890A165E6AEEB1A01DCF037E2B47A">
<mods:title id="0CD66F6A63CF619665259E3415DF9B18">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="12ACDF789EF09E71A3C2CED6E3E5DC50">
<mods:date id="51F4DC813F5DDABCBCECF27D58A0D98B">2009</mods:date>
<mods:detail id="8C1F7D65B854476228BE6ADCA9A2E963" type="volume">
<mods:number id="0A8EB2AAA975F00EFAF51F0247921994">2085</mods:number>
</mods:detail>
<mods:extent id="3CC02618C2A6C0B5AC988A51BB611F8C" unit="page">
<mods:start id="D86808195799B3EF5B18E7DEE7152F1A">27</mods:start>
<mods:end id="D073C9BF353588D1BAC54542E6060F1A">44</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="3387FC939853C3502997E61FA9AB2C30">journal article</mods:classification>
<mods:identifier id="E592D388DA8C664426A187D1395099D6" type="DOI">10.5281/zenodo.187392</mods:identifier>
<mods:identifier id="335A0AC3871ACA8CF1A9C3192C47EA63" type="GBIF-Dataset">4d5fb1ce-c4c8-4f47-b3f1-4e43ca86c125</mods:identifier>
<mods:identifier id="72364E050EF833083DBBFFBE8F7A86D0" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="395C8FEF40C8414AB0BF2C5FE873B748" type="Zenodo-Dep">187392</mods:identifier>
</mods:mods>
<treatment id="03D6135B0A0AC57439AC57FCFE9FFB41" ID-DOI="http://doi.org/10.5281/zenodo.6220429" ID-GBIF-Taxon="119615560" ID-Zenodo-Dep="6220429" LSID="urn:lsid:plazi:treatment:03D6135B0A0AC57439AC57FCFE9FFB41" httpUri="http://treatment.plazi.org/id/03D6135B0A0AC57439AC57FCFE9FFB41" lastPageId="15" lastPageNumber="42" pageId="6" pageNumber="33">
<subSubSection id="C365F1C60A0AC57D39AC57FCFE8FF951" pageId="6" pageNumber="33" type="nomenclature">
<paragraph id="8BC0A24D0A0AC57D39AC57FCFE7EF935" blockId="6.[151,467,1688,1750]" box="[151,467,1688,1715]" pageId="6" pageNumber="33">
<heading id="D08815210A0AC57D39AC57FCFE7EF935" bold="true" box="[151,467,1688,1715]" fontSize="11" level="1" pageId="6" pageNumber="33" reason="1">
<emphasis id="B90B7E5F0A0AC57D39AC57FCFE7EF935" bold="true" box="[151,467,1688,1715]" pageId="6" pageNumber="33">
<taxonomicName id="4C7FD9CE0A0AC57D39AC57FCFEC3F934" ID-CoL="6a6fae35-9dca-4280-a70a-911f064d9b18" box="[151,366,1689,1715]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="33" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A0AC57D39AC57FCFEC3F934" bold="true" box="[151,366,1689,1715]" italics="true" pageId="6" pageNumber="33">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A0AC57D384D57FDFE7EF935" box="[374,467,1688,1714]" pageId="6" pageNumber="33" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BC0A24D0A0AC57D39AC57D9FE8FF951" blockId="6.[151,467,1688,1750]" box="[151,290,1724,1750]" pageId="6" pageNumber="33">
<figureCitation id="1344BEC80A0AC57D39AC57D9FE8FF951" box="[151,290,1724,1750]" captionStart-0="FIGURE 3" captionStart-1="FIGURE 4" captionStart-2="FIGURE 5" captionStart-3="FIGURE 6" captionStart-4="FIGURE 7" captionStart-5="FIGURE 8" captionStartId-0="8.[151,255,1931,1955]" captionStartId-1="9.[151,256,1928,1952]" captionStartId-2="10.[151,255,1941,1965]" captionStartId-3="11.[151,257,1969,1993]" captionStartId-4="12.[151,255,1515,1539]" captionStartId-5="13.[151,255,1360,1384]" captionTargetBox-0="[199,1386,187,1885]" captionTargetBox-1="[221,1353,197,1885]" captionTargetBox-2="[190,1399,188,1906]" captionTargetBox-3="[205,1373,190,1938]" captionTargetBox-4="[169,1402,203,1495]" captionTargetBox-5="[184,1414,678,1323]" captionTargetId-0="figure@8.[181,1425,183,1899]" captionTargetId-1="figure@9.[213,1371,197,1899]" captionTargetId-2="figure@10.[172,1416,166,1914]" captionTargetId-3="figure@11.[175,1460,166,1971]" captionTargetId-4="figure@12.[155,1440,176,1496]" captionTargetId-5="figure@13.[150,1435,661,1336]" captionTargetPageId-0="8" captionTargetPageId-1="9" captionTargetPageId-2="10" captionTargetPageId-3="11" captionTargetPageId-4="12" captionTargetPageId-5="13" captionText-0="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." captionText-1="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." captionText-2="FIGURE 5. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Second pereiopod, chela, proximal. E. Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.)." captionText-3="FIGURE 6. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Third pereiopod. B. Same, dactylus. C. Fifth pereiopod. D. Same, dactylus. Scale bar indicates 1 mm (A), 0.7 mm (C) or 0.35 m (B, D)." captionText-4="FIGURE 7. Palaemon powelli sp. nov., male paratype NHM 1980.325 b. A. First pleopod, endopod. B. Second pleopod, endopod. C. Appendices masculina and interna. Scale bar indicates 0.5 mm (A-B) or 0.25 mm (C)." captionText-5="FIGURE 8. Palaemon powelli sp. nov., rostral variation NHM 1980.325 d. A. Ov. female, pocl 4.6. B. Ov. female, pocl 5.0. C. Ov. female, pocl 4.6. D. Female, pocl 3.0. E. Female, pocl 3.4. F. Female (pocl 3.5). Scale bar indicates 1 mm." httpUri-0="https://zenodo.org/record/187395/files/figure.png" httpUri-1="https://zenodo.org/record/187396/files/figure.png" httpUri-2="https://zenodo.org/record/187397/files/figure.png" httpUri-3="https://zenodo.org/record/187398/files/figure.png" httpUri-4="https://zenodo.org/record/187399/files/figure.png" httpUri-5="https://zenodo.org/record/187400/files/figure.png" pageId="6" pageNumber="33">Figures 3–8</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C365F1C60A0AC57D39AC5667FDABF8BE" pageId="6" pageNumber="33" type="reference_group">
<paragraph id="8BC0A24D0A0AC57D39AC5667FDABF8BE" blockId="6.[151,666,1794,1849]" pageId="6" pageNumber="33">
<treatmentCitationGroup id="AB6F85630A0AC57D39AC5667FDABF8BE" pageId="6" pageNumber="33">
<taxonomicName id="4C7FD9CE0A0AC57D39AC5667FEAEF89E" ID-CoL="b79096a2-67de-4dbe-8dfe-21c115530b02" box="[151,259,1794,1817]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B90B7E5F0A0AC57D39AC5667FEAEF89E" box="[151,259,1794,1817]" italics="true" pageId="6" pageNumber="33">Palaemon</emphasis>
</taxonomicName>
species A.– 
<treatmentCitation id="0ADE845C0A0AC57D38B95667FDEEF89E" author="Powell" box="[386,579,1794,1817]" page="273" pageId="6" pageNumber="33" year="1983">
<bibRefCitation id="EFEEDFBC0A0AC57D38B95667FDA3F89E" author="Powell" box="[386,526,1794,1817]" pageId="6" pageNumber="43" refString="Powell C. B. (1983) Fresh and brackish water shrimps of economic importance in the Niger Delta. In Proceedings of Second Annual Conference of the Fisheries Society of Nigeria, Calabar. pp. 254 - 285." type="book chapter" year="1983">Powell 1983</bibRefCitation>
: 273
</treatmentCitation>
, fig. 15. 
<taxonomicName id="4C7FD9CE0A0AC57D39AC5647FEAEF8BE" ID-CoL="b79096a2-67de-4dbe-8dfe-21c115530b02" box="[151,259,1826,1849]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="33" phylum="Arthropoda" rank="genus">
<emphasis id="B90B7E5F0A0AC57D39AC5647FEAEF8BE" box="[151,259,1826,1849]" italics="true" pageId="6" pageNumber="33">Palaemon</emphasis>
</taxonomicName>
sp— 
<treatmentCitation id="0ADE845C0A0AC57D38785647FDAFF8BE" author="Powell" box="[323,514,1826,1849]" page="235" pageId="6" pageNumber="33" year="1985">
<bibRefCitation id="EFEEDFBC0A0AC57D38785647FE61F8BE" author="Powell" box="[323,460,1826,1849]" pageId="6" pageNumber="43" refString="Powell, C. B. (1985) The decapod crustaceans of the Niger Delta, pp. 226 - 238. In: Wilcox B. H. R., Powell C. B. (eds). The mangrove ecosystem of the Niger Delta: proceedings of a workshop. University of Port Harcourt Press, Port Harcourt: i - v + 1 - 357." type="book chapter" year="1985">Powell 1985</bibRefCitation>
: 235
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C365F1C60A0AC57C39AC560DFDAFFDAD" lastPageId="7" lastPageNumber="34" pageId="6" pageNumber="33" type="materials_examined">
<paragraph id="8BC0A24D0A0AC57C39AC560DFB43FEAD" blockId="6.[151,1436,1896,2036]" lastBlockId="7.[151,1438,158,2021]" lastPageId="7" lastPageNumber="34" pageId="6" pageNumber="33">
<emphasis id="B90B7E5F0A0AC57D39AC560DFDB6F805" bold="true" box="[151,539,1896,1922]" pageId="6" pageNumber="33">
Material Examined. 
<typeStatus id="54C41CEF0A0AC57D38A4560DFDB8F805" box="[415,533,1896,1922]" pageId="6" pageNumber="33" type="holotype">Holotype</typeStatus>
:
</emphasis>
ovigerous Ψ, pocl. 
<quantity id="4C870FA80A0AC57D3A3B560CFCF0F804" box="[768,861,1897,1923]" metricMagnitude="-3" metricUnit="m" metricValue="7.7" pageId="6" pageNumber="33" unit="mm" value="7.7">7.7 mm</quantity>
; Oguck, 
<quantity id="4C870FA80A0AC57D3AFD560CFC40F804" box="[966,1005,1897,1923]" metricMagnitude="-1" metricUnit="m" metricValue="3.048" pageId="6" pageNumber="33" unit="ft" value="1.0">1 ft</quantity>
bank, ½ km from entrance to Bonny River, 
<collectingCountry id="F368E2DD0A0AC57D39D356EAFE86F82E" box="[232,299,1935,1961]" name="Niger" pageId="6" pageNumber="33">Niger</collectingCountry>
Delta, 
<collectingCountry id="F368E2DD0A0AC57D38BE56EAFE4CF82E" box="[389,481,1935,1961]" name="Nigeria" pageId="6" pageNumber="33">Nigeria</collectingCountry>
; 04˚39’40”N 07˚09’20”; leg. C.B. Powell; NHM1980.325a. 
<emphasis id="B90B7E5F0A0AC57D3DFF56EBFAE6F82F" bold="true" box="[1220,1355,1934,1960]" pageId="6" pageNumber="33">
<typeStatus id="54C41CEF0A0AC57D3DFF56EBFAEBF82F" box="[1220,1350,1934,1960]" pageId="6" pageNumber="33" type="paratype">Paratypes</typeStatus>
:
</emphasis>
5 ɗɗ, pocl. 
<quantity id="4C870FA80A0AC57D39E256D1FED4F849" box="[217,377,1972,1998]" metricMagnitude="-3" metricUnit="m" metricValue="4.15" metricValueMax="4.7" metricValueMin="3.6" pageId="6" pageNumber="33" unit="mm" value="4.15" valueMax="4.7" valueMin="3.6">3.6 – 4.7 mm</quantity>
; 7 ΨΨ, pocl. 
<quantity id="4C870FA80A0AC57D3B2E56D1FD1BF849" box="[533,694,1972,1998]" metricMagnitude="-3" metricUnit="m" metricValue="5.55" metricValueMax="6.5" metricValueMin="4.6" pageId="6" pageNumber="33" unit="mm" value="5.55" valueMax="6.5" valueMin="4.6">4.6 – 6.5 mm</quantity>
; 4 ovigerous ΨΨ, pocl. 
<quantity id="4C870FA80A0AC57D3AF656D1FBC3F849" box="[973,1134,1972,1998]" metricMagnitude="-3" metricUnit="m" metricValue="6.15" metricValueMax="6.5" metricValueMin="5.8" pageId="6" pageNumber="33" unit="mm" value="6.15" valueMax="6.5" valueMin="5.8">5.8 – 6.5 mm</quantity>
; 
<specimenCount id="9D7969C40A0AC57D3D4056D1FB42F849" box="[1147,1263,1972,1998]" pageId="6" pageNumber="33" type="juvenile">1 juvenile</specimenCount>
pocl. 
<quantity id="4C870FA80A0AC57D3C0156D1FA3AF849" box="[1338,1431,1972,1998]" metricMagnitude="-3" metricUnit="m" metricValue="2.4" pageId="6" pageNumber="33" unit="mm" value="2.4">2.4 mm</quantity>
; same data as 
<typeStatus id="54C41CEF0A0AC57D380D56BFFE0AF873" box="[310,423,2010,2036]" pageId="6" pageNumber="33" type="holotype">Holotype</typeStatus>
; NHM1980.325b-d. 4 ɗɗ, pocl. 
<quantity id="4C870FA80A0AC57D3A0C56BFFC77F873" box="[823,986,2010,2036]" metricMagnitude="-3" metricUnit="m" metricValue="4.2" metricValueMax="4.8" metricValueMin="3.6" pageId="6" pageNumber="33" unit="mm" value="4.2" valueMax="4.8" valueMin="3.6">3.6 – 4.8 mm</quantity>
; 5 ovigerous ΨΨ, pocl. 
<quantity id="4C870FA80A0AC57D3DCF56BFFA35F873" box="[1268,1432,2010,2036]" metricMagnitude="-3" metricUnit="m" metricValue="6.75" metricValueMax="7.6" metricValueMin="5.9" pageId="6" pageNumber="33" unit="mm" value="6.75" valueMax="7.6" valueMin="5.9">5.9 – 7.6 mm</quantity>
; medium salinity mangrove creeks, 
<collectingCountry id="F368E2DD0A0BC57C3B1451FBFDDFFF3F" box="[559,626,158,184]" name="Niger" pageId="7" pageNumber="34">Niger</collectingCountry>
Delta; leg. C.B. Powell; 
<collectionCode id="ED6E3A880A0BC57C3AAD51FBFC5FFF3F" LSID="urn:lsid:biocol.org:col:34992" box="[918,1010,158,184]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="7" pageNumber="34">RMNH</collectionCode>
.D 49892. 7 ɗɗ, pocl. 
<quantity id="4C870FA80A0BC57C3DC151FBFA3AFF3F" box="[1274,1431,158,184]" metricMagnitude="-3" metricUnit="m" metricValue="3.15" metricValueMax="4.1" metricValueMin="2.2" pageId="7" pageNumber="34" unit="mm" value="3.15" valueMax="4.1" valueMin="2.2">2.2 – 4.1 mm</quantity>
; 4 ovigerous ΨΨ, pocl. 5.5 – 6.0 mm; 18 ΨΨ, pocl. 
<quantity id="4C870FA80A0BC57C3A3B51A1FC0BFF59" box="[768,934,196,222]" metricMagnitude="-3" metricUnit="m" metricValue="3.7" metricValueMax="4.8" metricValueMin="2.6" pageId="7" pageNumber="34" unit="mm" value="3.7" valueMax="4.8" valueMin="2.6">2.6 – 4.8 mm</quantity>
; medium salinity mangrove creeks, 
<collectingCountry id="F368E2DD0A0BC57C3C6251A1FA31FF59" box="[1369,1436,196,222]" name="Niger" pageId="7" pageNumber="34">Niger</collectingCountry>
Delta; leg. C.B. Powell; 
<collectionCode id="ED6E3A880A0BC57C3885518FFDB7FE83" LSID="urn:lsid:biocol.org:col:34992" box="[446,538,234,260]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="7" pageNumber="34">RMNH</collectionCode>
.D 49887. 2 ɗɗ, pocl. 
<quantity id="4C870FA80A0BC57C3A0A518FFC7BFE83" box="[817,982,234,260]" metricMagnitude="-3" metricUnit="m" metricValue="4.2" metricValueMax="4.8" metricValueMin="3.6" pageId="7" pageNumber="34" unit="mm" value="4.2" valueMax="4.8" valueMin="3.6">3.6 – 4.8 mm</quantity>
; 3 ovigerous ΨΨ, pocl. 
<quantity id="4C870FA80A0BC57C3DC8518FFA3AFE83" box="[1267,1431,234,260]" metricMagnitude="-3" metricUnit="m" metricValue="6.75" metricValueMax="7.6" metricValueMin="5.9" pageId="7" pageNumber="34" unit="mm" value="6.75" valueMax="7.6" valueMin="5.9">5.9 – 7.6 mm</quantity>
; medium salinity mangrove creeks, 
<collectingCountry id="F368E2DD0A0BC57C3B0A5075FDD9FEAD" box="[561,628,272,298]" name="Niger" pageId="7" pageNumber="34">Niger</collectingCountry>
Delta; leg. C.B. Powell; OUMNH-ZC 2008-01-0017.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39F45050FF74FE1C" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
<emphasis id="B90B7E5F0A0BC57C39F45050FDD5FEC8" bold="true" box="[207,632,309,335]" pageId="7" pageNumber="34">Comparative Material Examined.</emphasis>
<taxonomicName id="4C7FD9CE0A0BC57C3BB35053FCD1FEC8" box="[648,892,310,335]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="34" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A0BC57C3BB35053FCD1FEC8" box="[648,892,310,335]" italics="true" pageId="7" pageNumber="34">Palaemon adspersus</emphasis>
</taxonomicName>
: 7 ΨΨ, pocl. 
<quantity id="4C870FA80A0BC57C3D265050FB63FEC8" box="[1053,1230,309,335]" metricMagnitude="-3" metricUnit="m" metricValue="8.3" metricValueMax="10.3" metricValueMin="6.3" pageId="7" pageNumber="34" unit="mm" value="8.3" valueMax="10.3" valueMin="6.3">6.3 – 10.3 mm</quantity>
; 2 ovigerous ΨΨ, pocl. 10.5, 
<quantity id="4C870FA80A0BC57C3827503EFE24FEF2" box="[284,393,347,373]" metricMagnitude="-2" metricUnit="m" metricValue="1.0699999999999998" pageId="7" pageNumber="34" unit="mm" value="10.7">10.7 mm</quantity>
; Ria 
<collectingCountry id="F368E2DD0A0BC57C38FC503EFD9DFEF2" box="[455,560,347,373]" name="Taiwan" pageId="7" pageNumber="34">Formosa</collectingCountry>
, Algarve, 
<collectingCountry id="F368E2DD0A0BC57C3B97503EFCBEFEF2" box="[684,787,347,373]" name="Portugal" pageId="7" pageNumber="34">Portugal</collectingCountry>
; 
<date id="FFC1848D0A0BC57C3A24503EFC05FEF2" box="[799,936,347,373]" pageId="7" pageNumber="34" value="2004-04-01">01/04/2004</date>
; leg. A. Whitaker; OUMNHZC 
<date id="FFC1848D0A0BC57C3C0B503EFA39FEF2" box="[1328,1428,347,373]" pageId="7" pageNumber="34" value="2004" valueMax="2016">2004-16</date>
- 0 0 0 1.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FD50C5FDAFFDAD" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
<taxonomicName id="4C7FD9CE0A0BC57C39FD50C5FE62FE3E" box="[198,463,416,441]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="34" phylum="Arthropoda" rank="species" species="longirostris">
<emphasis id="B90B7E5F0A0BC57C39FD50C5FE62FE3E" box="[198,463,416,441]" italics="true" pageId="7" pageNumber="34">Palaemon longirostris</emphasis>
</taxonomicName>
: 35 ɗɗ, pocl. 
<quantity id="4C870FA80A0BC57C3BBE50C5FC80FE3D" box="[645,813,416,442]" metricMagnitude="-3" metricUnit="m" metricValue="7.45" metricValueMax="9.5" metricValueMin="5.4" pageId="7" pageNumber="34" unit="mm" value="7.45" valueMax="9.5" valueMin="5.4">5.4 – 9.5 mm</quantity>
; 3 ΨΨ, pocl. 
<quantity id="4C870FA80A0BC57C3AE850C5FB24FE3D" box="[979,1161,416,442]" metricMagnitude="-2" metricUnit="m" metricValue="1.03" metricValueMax="1.09" metricValueMin="0.97" pageId="7" pageNumber="34" unit="mm" value="10.3" valueMax="10.9" valueMin="9.7">9.7 – 10.9 mm</quantity>
; Guadalquivir Estuary, 
<collectingCountry id="F368E2DD0A0BC57C39AC50A0FF70FE58" box="[151,221,453,479]" name="Spain" pageId="7" pageNumber="34">Spain</collectingCountry>
; 
<date id="FFC1848D0A0BC57C39D350A0FEDDFE58" box="[232,368,453,479]" pageId="7" pageNumber="34" value="2004-11-13">13/11/2004</date>
; leg. E. González-Ortegón; OUMNHZC 2005-03-0001. 11 ɗɗ, pocl. 
<quantity id="4C870FA80A0BC57C3D9950A0FAE0FE58" box="[1186,1357,453,479]" metricMagnitude="-2" metricUnit="m" metricValue="1.015" metricValueMax="1.08" metricValueMin="0.95" pageId="7" pageNumber="34" unit="mm" value="10.15" valueMax="10.8" valueMin="9.5">9.5 – 10.8 mm</quantity>
; 2 ΨΨ, pocl. 12.3, 
<quantity id="4C870FA80A0BC57C3819508EFE3FFD82" box="[290,402,491,517]" metricMagnitude="-2" metricUnit="m" metricValue="1.3599999999999999" pageId="7" pageNumber="34" unit="mm" value="13.6">13.6 mm</quantity>
; Tilbury Power Station, Thames, 
<collectingCountry id="F368E2DD0A0BC57C3A14508EFCF3FD82" box="[815,862,491,517]" name="United Kingdom" pageId="7" pageNumber="34">UK</collectingCountry>
; 
<geoCoordinate id="EE4BC48A0A0BC57C3A50508EFBAEFD82" box="[875,1027,491,517]" direction="north" orientation="latitude" pageId="7" pageNumber="34" precision="1" value="51.451805">51°27'6.5&quot;N</geoCoordinate>
<geoCoordinate id="EE4BC48A0A0BC57C3D31508EFB0CFD82" box="[1034,1185,491,517]" direction="east" orientation="longitude" pageId="7" pageNumber="34" precision="1" value="0.3886111">0°23'19.0&quot;E</geoCoordinate>
; 
<date id="FFC1848D0A0BC57C3D94508EFA90FD82" box="[1199,1341,491,517]" pageId="7" pageNumber="34" value="2007-01-24">24/01/2007</date>
; leg. R. Kowalik; NHM 2008.872-881.
</paragraph>
</subSubSection>
<subSubSection id="C365F1C60A0BC57539FD5350FAC6FB25" lastPageId="14" lastPageNumber="41" pageId="7" pageNumber="34" type="description">
<paragraph id="8BC0A24D0A0BC57C39FD5350FD4AFDC8" blockId="7.[151,1438,158,2021]" box="[198,743,565,591]" pageId="7" pageNumber="34">
<emphasis id="B90B7E5F0A0BC57C39FD5350FEF3FDC8" bold="true" box="[198,350,565,591]" pageId="7" pageNumber="34">Description.</emphasis>
A small sized 
<taxonomicName id="4C7FD9CE0A0BC57C3B375353FD2EFDC8" box="[524,643,566,591]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="34" phylum="Arthropoda" rank="genus">
<emphasis id="B90B7E5F0A0BC57C3B375353FD2EFDC8" box="[524,643,566,591]" italics="true" pageId="7" pageNumber="34">Palaemon</emphasis>
</taxonomicName>
species.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FE533EFB7FFB99" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
Carapace glabrous. Rostrum (
<figureCitation id="1344BEC80A0BC57C3B1E533EFD39FDF2" box="[549,660,603,629]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figures 3</figureCitation>
A–B, 8A–F) slender, ascendant in distal half, sometimes, slightly concave in middle; approximately equal to pocl., overreaching scaphocerite by 0.125 times length; armed with 6–8 dorsal teeth and 3–4 ventral teeth; proximal three dorsal teeth with weakly constricted bases; second tooth situated above or slightly behind margin of orbit; proximal most tooth 1.5 more distant than gaps between other teeth; distal portion (approximately one third) unarmed but with bifid tip. Double row of setae present in ventral unarmed portion, single row of setae present between teeth. Antennal and branchiostegal teeth present (
<figureCitation id="1344BEC80A0BC57C38705226FE14FCDA" box="[331,441,835,861]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
C); antennal tooth marginal, branchiostegal tooth variable in position, usually submarginal but may be slightly displaced from margin of carapace by up to 1–1.5 times its length. Branchiostegal groove originating dorsal to branchiostegal tooth, evenly curved and finishing just in front of half carapace length, slightly lower than at its origin. Sub-orbital lobe subquadrate (
<figureCitation id="1344BEC80A0BC57C3C3A52D2FAD9FC56" box="[1281,1396,951,977]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
C), pterygostomial angle rounded. Bec ocellaire (
<figureCitation id="1344BEC80A0BC57C3BF152B8FC9EFC70" box="[714,819,989,1015]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
C) with convex anterior margin, pronounced beak pointing upwards at approximately 45˚, dorsal surface convex with slight anterior concavity.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FE554EFD90FBEC" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
Eye (
<figureCitation id="1344BEC80A0BC57C383F554EFEC1FBC2" box="[260,364,1067,1093]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
B) well developed, with pigmented cornea; cornea slightly wider and longer than stalk; ocellus present on dorsomesial side.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FE551DFE3AFAAA" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
Antennular peduncle (
<figureCitation id="1344BEC80A0BC57C38F1551DFD82FB15" box="[458,559,1144,1170]" captionStart="FIGURE 4" captionStartId="9.[151,256,1928,1952]" captionTargetBox="[221,1353,197,1885]" captionTargetId="figure@9.[213,1371,197,1899]" captionTargetPageId="9" captionText="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="7" pageNumber="34">Figure 4</figureCitation>
C) extending to level with base of tooth of scaphocerite, or slightly further in males. Basal segment 2 times as long as wide with strongly convex outer margin, stylocerite acute; anterodistal tooth falling short of laminar portion; inner ventro-mesial tooth present; statocyst with statolith; ultimate segment 1.8 times as long as penultimate, their combined length being slightly less than 0.75 times that of basal segment.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FD545CFB90FAFD" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
Dorsal flagellum of the antennula (
<figureCitation id="1344BEC80A0BC57C3B56545CFD79FAD4" box="[621,724,1337,1363]" captionStart="FIGURE 4" captionStartId="9.[151,256,1928,1952]" captionTargetBox="[221,1353,197,1885]" captionTargetId="figure@9.[213,1371,197,1899]" captionTargetPageId="9" captionText="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="7" pageNumber="34">Figure 4</figureCitation>
D) fused for just under half its length (approximately 7–10 segments fused, 8–12 free); free portion bearing 2 or 3 aesthetascs per segment.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39AC54E2FF7AF992" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
Scaphocerite (
<figureCitation id="1344BEC80A0BC57C380554E2FE0FFA26" box="[318,418,1415,1441]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
F) laminar and just over three times as long as broad; outer margin straight or slightly concave terminating in tooth, falling short of distal margin of lamina; basal segment of antenna with large mesial tooth; antenna articulated to lateral margin of this segment. Flagellum of antenna about twice length of body.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FE5747FCB8F928" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">
Abdominal pleurae (
<figureCitation id="1344BEC80A0BC57C38E95747FDEFF9BB" box="[466,578,1570,1596]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
D) furnished with plumose setae on ventral margin; fifth pleuron posterodistal angle acute, sometimes prolonged into small laterally directed tooth; sixth segment approximately 1.5 times length of fifth; lateral margin (
<figureCitation id="1344BEC80A0BC57C3A18570AFC2AF90E" box="[803,903,1647,1673]" captionStart="FIGURE 3" captionStartId="8.[151,255,1931,1955]" captionTargetBox="[199,1386,187,1885]" captionTargetId="figure@8.[181,1425,183,1899]" captionTargetPageId="8" captionText="FIGURE 3. Palaemon powelli sp. nov., A. Carapace. B. Frontal region, lateral. C. Same, eye removed. D. Abdomen. E. Sixth pleonite. F. Antennal peduncle and scaphocerite. A-E holotype NHM 1980.325 a, F paratype NHM 1980.325 c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B)." httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="7" pageNumber="34">Figure 3</figureCitation>
e) with small tooth and notch disto-ventrally; median lobe blunt, lacking ventral submedian process.
</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FE57D9FF50F8CD" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">Thoracic sternal armature sexually dimorphic. Fourth thoracic sternite in females armed with sharp tooth, flanked by two submedian bosses, remainder with low transverse ridge; in ovigerous and post-ovigerous females eighth sternite with flattened setose plate. Eighth thoracic sternite in males with small, median tubercle.</paragraph>
<paragraph id="8BC0A24D0A0BC57C39FE5632FE08F862" blockId="7.[151,1438,158,2021]" pageId="7" pageNumber="34">Abdominal sternal armature sexually dimorphic. Females with blunt process on fourth abdominal sternite and acute longitudinal ridge on fifth; in males first to third abdominal sternite armed with broad flattened teeth with emarginated tips; longitudinal ridges present on fifth and sixth abdominal sternite. Pre-anal carina unarmed in both sexes.</paragraph>
<caption id="DF00F2C50A04C57339AC56EEFCDDF865" httpUri="https://zenodo.org/record/187395/files/figure.png" pageId="8" pageNumber="35" targetBox="[199,1386,187,1885]" targetPageId="8">
<paragraph id="8BC0A24D0A04C57339AC56EEFCDDF865" blockId="8.[151,1436,1931,2018]" pageId="8" pageNumber="35">
<emphasis id="B90B7E5F0A04C57339AC56EEFEB4F824" bold="true" box="[151,281,1931,1955]" pageId="8" pageNumber="35">FIGURE 3.</emphasis>
<taxonomicName id="4C7FD9CE0A04C573382456EEFE4DF825" box="[287,480,1931,1954]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="35" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A04C573382456EEFE4DF825" box="[287,480,1931,1954]" italics="true" pageId="8" pageNumber="35">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A04C57338DC56EEFD91F824" box="[487,572,1931,1955]" pageId="8" pageNumber="35" rank="species">
<emphasis id="B90B7E5F0A04C57338DC56EEFD91F824" bold="true" box="[487,572,1931,1955]" pageId="8" pageNumber="35">sp. nov.</emphasis>
</taxonomicNameLabel>
, 
<emphasis id="B90B7E5F0A04C5733B7256EEFDC9F824" bold="true" box="[585,612,1931,1955]" pageId="8" pageNumber="35">A.</emphasis>
Carapace. 
<emphasis id="B90B7E5F0A04C5733BE156EEFD5FF824" bold="true" box="[730,754,1931,1955]" pageId="8" pageNumber="35">B.</emphasis>
Frontal region, lateral. 
<emphasis id="B90B7E5F0A04C5733AD556EEFBAAF824" bold="true" box="[1006,1031,1931,1955]" pageId="8" pageNumber="35">C.</emphasis>
Same, eye removed. 
<emphasis id="B90B7E5F0A04C5733DD756EEFAABF824" bold="true" box="[1260,1286,1931,1955]" pageId="8" pageNumber="35">D.</emphasis>
Abdomen. 
<emphasis id="B90B7E5F0A04C5733CBF56EEFA31F824" bold="true" box="[1412,1436,1931,1955]" pageId="8" pageNumber="35">E.</emphasis>
Sixth pleonite. 
<emphasis id="B90B7E5F0A04C573380356CEFEE7F844" bold="true" box="[312,330,1963,1987]" pageId="8" pageNumber="35">F.</emphasis>
Antennal peduncle and scaphocerite. A-E holotype NHM1980.325a, F paratype NHM1980.325c. Scale bar indicates 2 mm (D), 1 mm (E-F), 0.8 mm (A, C) or 0.5 mm (B).
</paragraph>
</caption>
<caption id="DF00F2C50A05C57239AC56EDFDACF867" httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="9" pageNumber="36" targetBox="[221,1353,197,1885]" targetPageId="9">
<paragraph id="8BC0A24D0A05C57239AC56EDFDACF867" blockId="9.[151,1436,1928,2016]" pageId="9" pageNumber="36">
<emphasis id="B90B7E5F0A05C57239AC56EDFEB0F827" bold="true" box="[151,285,1928,1952]" pageId="9" pageNumber="36">FIGURE 4.</emphasis>
<taxonomicName id="4C7FD9CE0A05C572381F56ECFE47F827" box="[292,490,1929,1952]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="9" pageNumber="36" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A05C572381F56ECFE47F827" box="[292,490,1929,1952]" italics="true" pageId="9" pageNumber="36">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A05C57238C956EDFDE7F827" box="[498,586,1928,1952]" pageId="9" pageNumber="36" rank="species">
<emphasis id="B90B7E5F0A05C57238C956EDFDE7F827" bold="true" box="[498,586,1928,1952]" pageId="9" pageNumber="36">sp. nov.</emphasis>
</taxonomicNameLabel>
, paratype NHM1980.325c. 
<emphasis id="B90B7E5F0A05C5723A4556EDFC35F827" bold="true" box="[894,920,1928,1952]" pageId="9" pageNumber="36">A.</emphasis>
Mandible. 
<emphasis id="B90B7E5F0A05C5723D2C56EDFB9CF827" bold="true" box="[1047,1073,1928,1952]" pageId="9" pageNumber="36">B.</emphasis>
Third maxilliped. 
<emphasis id="B90B7E5F0A05C5723DC456EDFAB7F827" bold="true" box="[1279,1306,1928,1952]" pageId="9" pageNumber="36">C.</emphasis>
Antennular peduncle, mesial view. 
<emphasis id="B90B7E5F0A05C57238A856CDFE00F847" bold="true" box="[403,429,1960,1984]" pageId="9" pageNumber="36">D.</emphasis>
Antennular flagella, proximal part. 
<emphasis id="B90B7E5F0A05C5723A0956CDFCE7F847" bold="true" box="[818,842,1960,1984]" pageId="9" pageNumber="36">E.</emphasis>
Telson. 
<emphasis id="B90B7E5F0A05C5723A9D56CDFC15F847" bold="true" box="[934,952,1960,1984]" pageId="9" pageNumber="36">F.</emphasis>
Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F).
</paragraph>
</caption>
<caption id="DF00F2C50A06C57139AC56F0FF10F86B" httpUri="https://zenodo.org/record/187397/files/figure.png" pageId="10" pageNumber="37" targetBox="[190,1399,188,1906]" targetPageId="10">
<paragraph id="8BC0A24D0A06C57139AC56F0FF10F86B" blockId="10.[151,1436,1941,2028]" pageId="10" pageNumber="37">
<emphasis id="B90B7E5F0A06C57139AC56F0FEB6F82A" bold="true" box="[151,283,1941,1965]" pageId="10" pageNumber="37">FIGURE 5.</emphasis>
<taxonomicName id="4C7FD9CE0A06C571381956F0FE48F82B" box="[290,485,1941,1964]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="37" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A06C571381956F0FE48F82B" box="[290,485,1941,1964]" italics="true" pageId="10" pageNumber="37">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A06C57138D656F0FDE9F82A" box="[493,580,1941,1965]" pageId="10" pageNumber="37" rank="species">
<emphasis id="B90B7E5F0A06C57138D656F0FDE9F82A" bold="true" box="[493,580,1941,1965]" pageId="10" pageNumber="37">sp. nov.</emphasis>
</taxonomicNameLabel>
, paratype NHM1980.325c. 
<emphasis id="B90B7E5F0A06C5713A4F56F0FC20F82A" bold="true" box="[884,909,1941,1965]" pageId="10" pageNumber="37">A.</emphasis>
First pereiopod. 
<emphasis id="B90B7E5F0A06C5713D7356F0FBCDF82A" bold="true" box="[1096,1120,1941,1965]" pageId="10" pageNumber="37">B.</emphasis>
Second pereiopod. 
<emphasis id="B90B7E5F0A06C5713C0356F0FAFEF82A" bold="true" box="[1336,1363,1941,1965]" pageId="10" pageNumber="37">C.</emphasis>
Same, chela. 
<emphasis id="B90B7E5F0A06C57139E756D0FF5BF84A" bold="true" box="[220,246,1973,1997]" pageId="10" pageNumber="37">D.</emphasis>
Second pereiopod, chela, proximal. 
<emphasis id="B90B7E5F0A06C5713B4156D0FD3FF84A" bold="true" box="[634,658,1973,1997]" pageId="10" pageNumber="37">E.</emphasis>
Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.).
</paragraph>
</caption>
<caption id="DF00F2C50A07C57039AC56D4FBC9F86C" httpUri="https://zenodo.org/record/187398/files/figure.png" pageId="11" pageNumber="38" targetBox="[205,1373,190,1938]" targetPageId="11">
<paragraph id="8BC0A24D0A07C57039AC56D4FBC9F86C" blockId="11.[151,1436,1969,2027]" pageId="11" pageNumber="38">
<emphasis id="B90B7E5F0A07C57039AC56D4FEB3F84E" bold="true" box="[151,286,1969,1993]" pageId="11" pageNumber="38">FIGURE 6.</emphasis>
<taxonomicName id="4C7FD9CE0A07C570381E56D4FE43F84F" box="[293,494,1969,1992]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="38" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A07C570381E56D4FE43F84F" box="[293,494,1969,1992]" italics="true" pageId="11" pageNumber="38">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A07C57038CD56D4FDE2F84E" box="[502,591,1969,1993]" pageId="11" pageNumber="38" rank="species">
<emphasis id="B90B7E5F0A07C57038CD56D4FDE2F84E" bold="true" box="[502,591,1969,1993]" pageId="11" pageNumber="38">sp. nov.</emphasis>
</taxonomicNameLabel>
, paratype NHM1980.325c. 
<emphasis id="B90B7E5F0A07C5703ABC56D4FC0CF84E" bold="true" box="[903,929,1969,1993]" pageId="11" pageNumber="38">A.</emphasis>
Third pereiopod. 
<emphasis id="B90B7E5F0A07C5703D5756D4FB2BF84E" bold="true" box="[1132,1158,1969,1993]" pageId="11" pageNumber="38">B.</emphasis>
Same, dactylus. 
<emphasis id="B90B7E5F0A07C5703C7F56D4FAF2F84E" bold="true" box="[1348,1375,1969,1993]" pageId="11" pageNumber="38">C.</emphasis>
Fifth pereiopod. 
<emphasis id="B90B7E5F0A07C570383456B6FE85F86C" bold="true" box="[271,296,2003,2027]" pageId="11" pageNumber="38">D.</emphasis>
Same, dactylus. Scale bar indicates 1 mm (A), 0.7 mm (C) or 0.35 m (B, D).
</paragraph>
</caption>
<caption id="DF00F2C50A00C57739AC548EFB10F9A4" httpUri="https://zenodo.org/record/187399/files/figure.png" pageId="12" pageNumber="39" targetBox="[169,1402,203,1495]" targetPageId="12">
<paragraph id="8BC0A24D0A00C57739AC548EFB10F9A4" blockId="12.[151,1436,1515,1571]" pageId="12" pageNumber="39">
<emphasis id="B90B7E5F0A00C57739AC548EFEB4F984" bold="true" box="[151,281,1515,1539]" pageId="12" pageNumber="39">FIGURE 7.</emphasis>
<taxonomicName id="4C7FD9CE0A00C577381B5489FE4FF984" box="[288,482,1516,1539]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="12" pageNumber="39" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A00C577381B5489FE4FF984" box="[288,482,1516,1539]" italics="true" pageId="12" pageNumber="39">Palaemon powelli</emphasis>
</taxonomicName>
<emphasis id="B90B7E5F0A00C57738D3548EFD93F984" bold="true" box="[488,574,1515,1539]" pageId="12" pageNumber="39">
<taxonomicNameLabel id="A238C3240A00C57738D3548EFD93F984" box="[488,574,1515,1539]" pageId="12" pageNumber="39" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, male paratype NHM1980.325b. 
<emphasis id="B90B7E5F0A00C5773A9E548EFC12F984" bold="true" box="[933,959,1515,1539]" pageId="12" pageNumber="39">A.</emphasis>
First pleopod, endopod. 
<emphasis id="B90B7E5F0A00C5773DF0548EFB4FF984" bold="true" box="[1227,1250,1515,1539]" pageId="12" pageNumber="39">B.</emphasis>
Second pleopod, endopod. 
<emphasis id="B90B7E5F0A00C577383B576EFEB4F9A4" bold="true" box="[256,281,1547,1571]" pageId="12" pageNumber="39">C.</emphasis>
Appendices masculina and interna. Scale bar indicates 0.5 mm (A-B) or 0.25 mm (C).
</paragraph>
</caption>
<paragraph id="8BC0A24D0A00C57639FE5710FD86FDDC" blockId="12.[151,1436,1653,2027]" lastBlockId="13.[151,1437,152,603]" lastPageId="13" lastPageNumber="40" pageId="12" pageNumber="39">
Mandible (
<figureCitation id="1344BEC80A00C577387D5710FE01F908" box="[326,428,1653,1679]" captionStart="FIGURE 4" captionStartId="9.[151,256,1928,1952]" captionTargetBox="[221,1353,197,1885]" captionTargetId="figure@9.[213,1371,197,1899]" captionTargetPageId="9" captionText="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="12" pageNumber="39">Figure 4</figureCitation>
A) with two segmented palp; terminal segment about 1.5–2 times length of proximal segment; terminal segment bearing two apical simple setae and two lateral setae; proximal segment with slightly swollen inner margin, bearing a single seta distally. Incisor process of mandible with 3 teeth on right mandible, the middle of which is the smallest, and 4 teeth on left mandible, the middle 2 of which are smaller than the outer ones; molar process with 6 teeth of varying sizes. Paragnaths covering about half the mandibles; alae formed by broad, transverse more or less oval distal lobes, ventromesial lobes triangular. Corpus short, narrowly separated; base with two posteriorly diverging carinae. Epistome triangular with rounded anterior angle and strong anteromedial carina. Labrum broadly rectangular, flanked by triangular lobes on each side. Maxillula with lower lacinia near oval, smaller and narrower than upper lacinia; upper lacinia provided with several distal cuspidate and stout setae but otherwise naked; palp with bifid tip; upper process naked, lower process broad with small ventral tubercle that bears a single recurved setiform process. Maxilla with upper lacinia deeply cleft, ending in a number of stout setae, two simple setae on its upper margin; palp well developed, broad and naked except for a few plumose setae proximally on its outer margin; scaphognathite is large, fringed with plumose setae; lower lobe narrower than the upper. First maxilliped with endites separated by distinct notch; palp slender, slightly twisted and provided with single apical seta; exopod well developed, slender and furnished with plumose setae distally; caridean lobe well developed; epipod large and bilobed. Second maxilliped with slender rectangular ultimate segment; penultimate segment broadly triangular, with convex, semicircular upper margin; exopod well developed; well developed podobranch present. Third maxilliped (
<figureCitation id="1344BEC80A01C576381150A8FE39FE60" box="[298,404,461,487]" captionStart="FIGURE 4" captionStartId="9.[151,256,1928,1952]" captionTargetBox="[221,1353,197,1885]" captionTargetId="figure@9.[213,1371,197,1899]" captionTargetPageId="9" captionText="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="13" pageNumber="40">Figure 4</figureCitation>
B) pediform; ultimate segment 0.8 times length of penultimate; antepenultimate and preceding segment fused, with strongly curved dorsal margin; single spine subdistally; exopod reaches just over half length of antepenultimate segment; epipodal plate cupped, ear shaped; well developed arthrobranch and reduced pleurobranch present.
</paragraph>
<caption id="DF00F2C50A01C57639AC5435FA25FA0C" httpUri="https://zenodo.org/record/187400/files/figure.png" pageId="13" pageNumber="40" targetBox="[184,1414,678,1323]" targetPageId="13">
<paragraph id="8BC0A24D0A01C57639AC5435FA25FA0C" blockId="13.[151,1436,1360,1419]" pageId="13" pageNumber="40">
<emphasis id="B90B7E5F0A01C57639AC5435FEB6FAEF" bold="true" box="[151,283,1360,1384]" pageId="13" pageNumber="40">FIGURE 8.</emphasis>
<taxonomicName id="4C7FD9CE0A01C57638195434FE49FAEF" box="[290,484,1361,1384]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="13" pageNumber="40" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A01C57638195434FE49FAEF" box="[290,484,1361,1384]" italics="true" pageId="13" pageNumber="40">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A01C57638D75435FDEFFAEF" box="[492,578,1360,1384]" pageId="13" pageNumber="40" rank="species">
<emphasis id="B90B7E5F0A01C57638D75435FDEFFAEF" bold="true" box="[492,578,1360,1384]" pageId="13" pageNumber="40">sp. nov.</emphasis>
</taxonomicNameLabel>
, rostral variation NHM1980.325d. 
<emphasis id="B90B7E5F0A01C5763AFB5435FC77FAEF" bold="true" box="[960,986,1360,1384]" pageId="13" pageNumber="40">A.</emphasis>
Ov. female, pocl 4.6. 
<emphasis id="B90B7E5F0A01C5763DF15435FB4FFAEF" bold="true" box="[1226,1250,1360,1384]" pageId="13" pageNumber="40">B.</emphasis>
Ov. female, pocl 5.0. 
<emphasis id="B90B7E5F0A01C57639FE5416FF72FA0C" bold="true" box="[197,223,1395,1419]" pageId="13" pageNumber="40">C.</emphasis>
Ov. female, pocl 4.6. 
<emphasis id="B90B7E5F0A01C57638F05416FE48FA0C" bold="true" box="[459,485,1395,1419]" pageId="13" pageNumber="40">D.</emphasis>
Female, pocl 3.0. 
<emphasis id="B90B7E5F0A01C5763B905416FD6EFA0C" bold="true" box="[683,707,1395,1419]" pageId="13" pageNumber="40">E.</emphasis>
Female, pocl 3.4. 
<emphasis id="B90B7E5F0A01C5763AB25416FC36FA0C" bold="true" box="[905,923,1395,1419]" pageId="13" pageNumber="40">F.</emphasis>
Female (pocl 3.5). Scale bar indicates 1 mm.
</paragraph>
</caption>
<paragraph id="8BC0A24D0A01C57539FE5486FDC9FECB" blockId="13.[151,1437,1507,2036]" lastBlockId="14.[151,1437,152,2036]" lastPageId="14" lastPageNumber="41" pageId="13" pageNumber="40">
Well developed pleurobranchiae present on all thoracic legs. First pereiopod (
<figureCitation id="1344BEC80A01C5763D4B5486FB7AFA7A" box="[1136,1239,1507,1533]" captionStart="FIGURE 5" captionStartId="10.[151,255,1941,1965]" captionTargetBox="[190,1399,188,1906]" captionTargetId="figure@10.[172,1416,166,1914]" captionTargetPageId="10" captionText="FIGURE 5. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Second pereiopod, chela, proximal. E. Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.)." httpUri="https://zenodo.org/record/187397/files/figure.png" pageId="13" pageNumber="40">Figure 5</figureCitation>
A) overreaching scaphocerite by length of fingers and half palm; basis 0.5 length of ischium; merus 1.7 length of ischium; carpus slightly longer (1.1x) than merus; chela 0.6 times length of carpus, fingers approximately equal to palm, with tufts of setae; carpal-propodal brush well developed. Second pereiopod (
<figureCitation id="1344BEC80A01C5763DAD573DFB52F9F5" box="[1174,1279,1624,1650]" captionStart="FIGURE 5" captionStartId="10.[151,255,1941,1965]" captionTargetBox="[190,1399,188,1906]" captionTargetId="figure@10.[172,1416,166,1914]" captionTargetPageId="10" captionText="FIGURE 5. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Second pereiopod, chela, proximal. E. Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.)." httpUri="https://zenodo.org/record/187397/files/figure.png" pageId="13" pageNumber="40">Figure 5</figureCitation>
B) extending beyond scaphocerite by full length of chela and 0.75 length of carpus; ischium 5 times length of basis; merus 1.1 length of ischium; carpus 1.1 length of merus; chela (
<figureCitation id="1344BEC80A01C5763A7D57C0FC06F938" box="[838,939,1701,1727]" captionStart="FIGURE 5" captionStartId="10.[151,255,1941,1965]" captionTargetBox="[190,1399,188,1906]" captionTargetId="figure@10.[172,1416,166,1914]" captionTargetPageId="10" captionText="FIGURE 5. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Second pereiopod, chela, proximal. E. Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.)." httpUri="https://zenodo.org/record/187397/files/figure.png" pageId="13" pageNumber="40">Figure 5</figureCitation>
C–E) 1.25 times length of carpus, fingers about 1.2 times palm (but may be equal to palm in males and immature females), fingers slender, forcipitous, palm slightly swollen, strong dentition proximally between fingers (
<figureCitation id="1344BEC80A01C5763ADB5797FBE4F88B" box="[992,1097,1778,1804]" captionStart="FIGURE 5" captionStartId="10.[151,255,1941,1965]" captionTargetBox="[190,1399,188,1906]" captionTargetId="figure@10.[172,1416,166,1914]" captionTargetPageId="10" captionText="FIGURE 5. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Second pereiopod, chela, proximal. E. Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.)." httpUri="https://zenodo.org/record/187397/files/figure.png" pageId="13" pageNumber="40">Figure 5</figureCitation>
D). Ambulatory pereiopods increase in length, pereiopod 3 being shortest. Third pereiopod (
<figureCitation id="1344BEC80A01C5763AB0567CFC42F8B4" box="[907,1007,1817,1843]" captionStart="FIGURE 6" captionStartId="11.[151,257,1969,1993]" captionTargetBox="[205,1373,190,1938]" captionTargetId="figure@11.[175,1460,166,1971]" captionTargetPageId="11" captionText="FIGURE 6. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Third pereiopod. B. Same, dactylus. C. Fifth pereiopod. D. Same, dactylus. Scale bar indicates 1 mm (A), 0.7 mm (C) or 0.35 m (B, D)." httpUri="https://zenodo.org/record/187398/files/figure.png" pageId="13" pageNumber="40">Figure 6</figureCitation>
A) overreaching scaphocerite by 0.5 length of its dactylus; ischium 2 times basis; merus 2.5 times length of ischium; carpus 0.5 length of merus; propodus 2 times length of carpus, approximately equal to merus, ventral margin armed with 6 pairs of cuspidate setae; dactylus simple, about 0.3 length of propodus. Fourth pereiopod overreaching scaphocerite by one sixth of its propodus; ischium 3 times length of basis; merus 2.8 times length of ischium; carpus 0.5 length of merus; propodus 2 times length of carpus and subequal to merus, ventral margin provided with 6 pairs of cuspidate setae; dactylus about 0.3 length of propodus. Fifth pereiopod (
<figureCitation id="1344BEC80A02C5753D7951FDFB0AFF35" box="[1090,1191,152,178]" captionStart="FIGURE 6" captionStartId="11.[151,257,1969,1993]" captionTargetBox="[205,1373,190,1938]" captionTargetId="figure@11.[175,1460,166,1971]" captionTargetPageId="11" captionText="FIGURE 6. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Third pereiopod. B. Same, dactylus. C. Fifth pereiopod. D. Same, dactylus. Scale bar indicates 1 mm (A), 0.7 mm (C) or 0.35 m (B, D)." httpUri="https://zenodo.org/record/187398/files/figure.png" pageId="14" pageNumber="41">Figure 6</figureCitation>
C) extending beyond distal margin of scaphocerite by 0.6 of propodus; ischium 2 times length of basis; merus 2.8 times length of ischium; carpus 0.6 length of merus; propodus 1.8 length of carpus and longer than merus, ventral margin armed with 6 pairs of unevenly spaced cuspidate setae, grooming brush comprises 2 rows of serrulate setae and extends for 0.1 length of propodus.
</paragraph>
<paragraph id="8BC0A24D0A02C57539FD503CFB23FDDC" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">
First pleopod sexually dimorphic in proportions, lacking appendix interna in both sexes; in males endopod 0.8 times length of exopod; both exo- and endopods fringed with plumose setae but mesial portion of inner margin of endopod devoid of plumose setae, with 6 spiniform setae (
<figureCitation id="1344BEC80A02C5753AC450C3FBC1FE47" box="[1023,1132,422,448]" captionStart="FIGURE 7" captionStartId="12.[151,255,1515,1539]" captionTargetBox="[169,1402,203,1495]" captionTargetId="figure@12.[155,1440,176,1496]" captionTargetPageId="12" captionText="FIGURE 7. Palaemon powelli sp. nov., male paratype NHM 1980.325 b. A. First pleopod, endopod. B. Second pleopod, endopod. C. Appendices masculina and interna. Scale bar indicates 0.5 mm (A-B) or 0.25 mm (C)." httpUri="https://zenodo.org/record/187399/files/figure.png" pageId="14" pageNumber="41">Figure 7</figureCitation>
A); in females, endopod approximately one third length of exopod. Second to fifth pleopods broadly similar with endopod being slightly shorter than exopod, with appendix interna. Second pleopod of males with appendix masculina; appendix masculina subequal in length to appendix interna (
<figureCitation id="1344BEC80A02C5753A4A537FFC48FDB3" box="[881,997,538,564]" captionStart="FIGURE 7" captionStartId="12.[151,255,1515,1539]" captionTargetBox="[169,1402,203,1495]" captionTargetId="figure@12.[155,1440,176,1496]" captionTargetPageId="12" captionText="FIGURE 7. Palaemon powelli sp. nov., male paratype NHM 1980.325 b. A. First pleopod, endopod. B. Second pleopod, endopod. C. Appendices masculina and interna. Scale bar indicates 0.5 mm (A-B) or 0.25 mm (C)." httpUri="https://zenodo.org/record/187399/files/figure.png" pageId="14" pageNumber="41">Figures 7</figureCitation>
B–C), furnished with 8 lateral and 5 apical setae; both apical and lateral setae smooth; apical setae longer than lateral setae.
</paragraph>
<paragraph id="8BC0A24D0A02C57539FD530DFF5AFCED" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">
Telson (
<figureCitation id="1344BEC80A02C575381E530DFE26FD05" box="[293,395,616,642]" captionStart="FIGURE 4" captionStartId="9.[151,256,1928,1952]" captionTargetBox="[221,1353,197,1885]" captionTargetId="figure@9.[213,1371,197,1899]" captionTargetPageId="9" captionText="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="14" pageNumber="41">Figure 4</figureCitation>
E) approximately 1.2 times length of sixth pleonite; length:width ratio 2.8:1 proximally narrowing to 8.8:1 distally; dorsal surface with two pairs of cuspidate setae, proximal dorsal tuft of setae (few in number 2–4) and one pair of simple setae subdistally on median process; proximal pair of cuspidate setae situated at approximately 0.5 length, distal pair at 0.75 length; marginal setae present in distal portion only; posterior margin (
<figureCitation id="1344BEC80A02C57538505267FE7CFC9B" box="[363,465,770,796]" captionStart="FIGURE 4" captionStartId="9.[151,256,1928,1952]" captionTargetBox="[221,1353,197,1885]" captionTargetId="figure@9.[213,1371,197,1899]" captionTargetPageId="9" captionText="FIGURE 4. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. Mandible. B. Third maxilliped. C. Antennular peduncle, mesial view. D. Antennular flagella, proximal part. E. Telson. F. Same, distal part. Scale bar indicates 1 mm (B-E), 0.8 mm (A) or 0.5 mm (F)." httpUri="https://zenodo.org/record/187396/files/figure.png" pageId="14" pageNumber="41">Figure 4</figureCitation>
F) prolonged into acute process, with 1 pair of plumose setae, and 2 pairs of stout setae, inner pair more than 3 times longer than outer pair; outer pair finish approximately level with median process.
</paragraph>
<paragraph id="8BC0A24D0A02C57539FD5213FA23FC30" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">Uropods broadly ovate, overreaching telson by 0.2 times length of endopod; exopod slightly longer than endopod, weak diaresis present; mobile lateral spine of exopod overreaching the fixed tooth by length of tip.</paragraph>
<paragraph id="8BC0A24D0A02C57539FD52A1FD8DFC59" blockId="14.[151,1437,152,2036]" box="[198,544,964,990]" pageId="14" pageNumber="41">
Eggs numerous; 0.8x 
<quantity id="4C870FA80A02C575388452A1FDB1FC59" box="[447,540,964,990]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="14" pageNumber="41" unit="mm" value="0.5">0.5 mm</quantity>
.
</paragraph>
<paragraph id="8BC0A24D0A02C57539FD5288FAC6FB25" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">
<emphasis id="B90B7E5F0A02C57539FD5288FE24FB80" bold="true" box="[198,393,1005,1031]" pageId="14" pageNumber="41">Colour pattern.</emphasis>
“Transparent shrimp with thin dark transverse line across posterior edge of 3rd abdominal somite, more intense than any such line (if present) on other somites; and a short dark vertical (not oblique) line in middle of posterior half of side of carapace. Legs (including chelipeds) uncoloured, lacking reddish pigment at joints. Eggs dark olive, appearing black. Pleura of ovigerous females with 4 vertical bars (the last one an extension of the transverse abdominal line), with large conspicuous white patches” (
<bibRefCitation id="EFEEDFBC0A02C5753DFF55EDFAF3FB25" author="Powell" box="[1220,1374,1160,1186]" pageId="14" pageNumber="43" refString="Powell C. B. (1983) Fresh and brackish water shrimps of economic importance in the Niger Delta. In Proceedings of Second Annual Conference of the Fisheries Society of Nigeria, Calabar. pp. 254 - 285." type="book chapter" year="1983">Powell 1983</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C365F1C60A02C57539FD55CBFAC7FABB" pageId="14" pageNumber="41" type="distribution">
<paragraph id="8BC0A24D0A02C57539FD55CBFBDCFB68" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">
<emphasis id="B90B7E5F0A02C57539FD55CBFDA8FB4F" bold="true" box="[198,517,1198,1224]" pageId="14" pageNumber="41">Distribution and habitat.</emphasis>
Currently only known from medium salinity mangrove creeks in the 
<collectingCountry id="F368E2DD0A02C5753C6255CAFA31FB4E" box="[1369,1436,1199,1225]" name="Niger" pageId="14" pageNumber="41">Niger</collectingCountry>
Delta, 
<collectingCountry id="F368E2DD0A02C57539DE55B0FEECFB68" box="[229,321,1237,1263]" name="Nigeria" pageId="14" pageNumber="41">Nigeria</collectingCountry>
. 
<bibRefCitation id="EFEEDFBC0A02C575387755B0FE5EFB68" author="Powell" box="[332,499,1237,1263]" pageId="14" pageNumber="43" refString="Powell C. B. (1983) Fresh and brackish water shrimps of economic importance in the Niger Delta. In Proceedings of Second Annual Conference of the Fisheries Society of Nigeria, Calabar. pp. 254 - 285." type="book chapter" year="1983">Powell (1983)</bibRefCitation>
states that it occurs in salinities between 5 and 20 ppt.
</paragraph>
<paragraph id="8BC0A24D0A02C57539FD5599FAC7FABB" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">
<emphasis id="B90B7E5F0A02C57539FD5599FE68FA91" bold="true" box="[198,453,1276,1302]" pageId="14" pageNumber="41">Derivation of name.</emphasis>
The new species is dedicated to the collector of the 
<typeStatus id="54C41CEF0A02C5753D765599FB2DFA91" box="[1101,1152,1276,1302]" pageId="14" pageNumber="41">type</typeStatus>
series, the late Charles Bruce Powell (
<date id="FFC1848D0A02C575387E5447FE62FABB" box="[325,463,1314,1340]" pageId="14" pageNumber="41" value="1943" valueMax="1998">1943–1998</date>
), in recognition of his work on the 
<taxonomicName id="4C7FD9CE0A02C5753A515447FC72FABB" box="[874,991,1314,1340]" class="Malacostraca" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="order">Decapoda</taxonomicName>
of 
<collectingCountry id="F368E2DD0A02C5753D3D5447FBCFFABB" box="[1030,1122,1314,1340]" name="Nigeria" pageId="14" pageNumber="41">Nigeria</collectingCountry>
. The name is genitive.
</paragraph>
</subSubSection>
<subSubSection id="C365F1C60A02C57439FD542CFE9FFB41" lastPageId="15" lastPageNumber="42" pageId="14" pageNumber="41" type="discussion">
<paragraph id="8BC0A24D0A02C57539FD542CFCEEF9A3" blockId="14.[151,1437,152,2036]" pageId="14" pageNumber="41">
<emphasis id="B90B7E5F0A02C57539FD542CFEEDFAE4" bold="true" box="[198,320,1353,1379]" pageId="14" pageNumber="41">Remarks.</emphasis>
<taxonomicName id="4C7FD9CE0A02C5753870542CFD8EFAE5" box="[331,547,1353,1378]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A02C5753870542CFD8EFAE5" box="[331,547,1353,1378]" italics="true" pageId="14" pageNumber="41">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A02C5753B16542CFD22FAE4" box="[557,655,1353,1379]" pageId="14" pageNumber="41" rank="species">
<emphasis id="B90B7E5F0A02C5753B16542CFD22FAE4" bold="true" box="[557,655,1353,1379]" pageId="14" pageNumber="41">sp. nov.</emphasis>
</taxonomicNameLabel>
is characterised by a combination of features. The shape of the chelae of the second pereiopod, having the grooming brush of the fifth pereiopod comprising just two rows of setae, the absence of a pre-anal spine and having the proximal most tooth of the dorsal rostral series 1.5 times removed are diagnostic for the species. A number of more subjective features may, likewise, have some diagnostic value; these include the relative length of the apical setae of the appendix masculina compared with the lateral series and the shape of the antennular peduncle.
</paragraph>
<paragraph id="8BC0A24D0A02C57439FE5754FE97FD05" blockId="14.[151,1437,152,2036]" lastBlockId="15.[151,1437,152,1222]" lastPageId="15" lastPageNumber="42" pageId="14" pageNumber="41">
In addition to 
<taxonomicName id="4C7FD9CE0A02C57538505754FE72F9CD" box="[363,479,1585,1611]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A02C57538505754FED7F9CD" box="[363,378,1585,1610]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C57538B25754FE72F9CD" box="[393,479,1585,1610]" italics="true" pageId="14" pageNumber="41">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A02C57538DC5754FDE9F9CC" box="[487,580,1585,1611]" pageId="14" pageNumber="41" rank="species">
<emphasis id="B90B7E5F0A02C57538DC5754FDE9F9CC" bold="true" box="[487,580,1585,1611]" pageId="14" pageNumber="41">sp. nov.</emphasis>
</taxonomicNameLabel>
a further 12 species of 
<taxonomicName id="4C7FD9CE0A02C5753A615754FC7CF9CD" box="[858,977,1585,1610]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="genus">
<emphasis id="B90B7E5F0A02C5753A615754FC7CF9CD" box="[858,977,1585,1610]" italics="true" pageId="14" pageNumber="41">Palaemon</emphasis>
</taxonomicName>
are reported from marine and brackish waters in the Atlantic: 
<taxonomicName id="4C7FD9CE0A02C5753895573DFD41F9F5" authority="Rathke 1837" authorityName="Rathke" authorityYear="1837" box="[430,748,1624,1650]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A02C5753895573DFE10F9F6" box="[430,445,1624,1649]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C57538F6573DFDEBF9F6" box="[461,582,1624,1649]" italics="true" pageId="14" pageNumber="41">adspersus</emphasis>
Rathke 1837
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753BC2573DFCD8F9F6" box="[761,885,1624,1650]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="elegans">
<emphasis id="B90B7E5F0A02C5753BC2573DFCA5F9F6" box="[761,776,1624,1649]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753A22573DFCD8F9F6" box="[793,885,1624,1649]" italics="true" pageId="14" pageNumber="41">elegans</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753ABE573DFB11F9F5" authority="Chace 1942" authorityName="Chace" authorityYear="1942" box="[901,1212,1624,1650]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="floridanus">
<emphasis id="B90B7E5F0A02C5753ABE573DFC39F9F6" box="[901,916,1624,1649]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753A9F573DFB8DF9F6" box="[932,1056,1624,1649]" italics="true" pageId="14" pageNumber="41">floridanus</emphasis>
Chace 1942
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753DF2573DFAD8F9F6" box="[1225,1397,1624,1650]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="longirostris">
<emphasis id="B90B7E5F0A02C5753DF2573DFB75F9F6" box="[1225,1240,1624,1649]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753DD2573DFAD8F9F6" box="[1257,1397,1624,1649]" italics="true" pageId="14" pageNumber="41">longirostris</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753CBE573DFE58F91E" authority="Rathbun 1902" authorityName="Rathbun" authorityYear="1902" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="macrodactylus">
<emphasis id="B90B7E5F0A02C5753CBE573DFA39F9F6" box="[1413,1428,1624,1649]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C57539AC571AFEEEF91F" box="[151,323,1663,1688]" italics="true" pageId="14" pageNumber="41">macrodactylus</emphasis>
Rathbun 1902
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753B3A571AFD35F91F" box="[513,664,1663,1689]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="maculatus">
<emphasis id="B90B7E5F0A02C5753B3A571AFDBDF91F" box="[513,528,1663,1688]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753B24571AFD35F91F" box="[543,664,1663,1688]" italics="true" pageId="14" pageNumber="41">maculatus</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753B93571AFC9BF91F" box="[680,822,1663,1689]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="northropi">
<emphasis id="B90B7E5F0A02C5753B93571AFD1AF91F" box="[680,695,1663,1688]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753BFD571AFC9BF91F" box="[710,822,1663,1688]" italics="true" pageId="14" pageNumber="41">northropi</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753A7E571AFB94F91E" authority="Filho 1967" authorityName="Filho" authorityYear="1967" box="[837,1081,1663,1689]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="paivai">
<emphasis id="B90B7E5F0A02C5753A7E571AFCF9F91F" box="[837,852,1663,1688]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753A58571AFC00F91F" box="[867,941,1663,1688]" italics="true" pageId="14" pageNumber="41">paivai</emphasis>
Filho 1967
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C5753D7E571AFA3AF91E" authority="Stebbing 1915" authorityName="Stebbing" authorityYear="1915" box="[1093,1431,1663,1689]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="peringueyi">
<emphasis id="B90B7E5F0A02C5753D7E571AFBF9F91F" box="[1093,1108,1663,1688]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753D5F571AFB4FF91F" box="[1124,1250,1663,1688]" italics="true" pageId="14" pageNumber="41">peringueyi</emphasis>
Stebbing 1915
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C57539AC57C3FE0EF938" authority="Rodriguez" authorityName="Rodriguez" box="[151,419,1701,1727]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="rosalesi">
<emphasis id="B90B7E5F0A02C57539AC57C3FF0BF938" box="[151,166,1702,1727]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C575398C57C3FEB4F938" box="[183,281,1702,1727]" italics="true" pageId="14" pageNumber="41">rosalesi</emphasis>
Rodriguez
</taxonomicName>
de la Cruz 1965, 
<taxonomicName id="4C7FD9CE0A02C5753BBD57C3FCA1F938" box="[646,780,1701,1727]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="serratus">
<emphasis id="B90B7E5F0A02C5753BBD57C3FD3BF938" box="[646,662,1702,1727]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753B9D57C3FCA1F938" box="[678,780,1702,1727]" italics="true" pageId="14" pageNumber="41">serratus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C7FD9CE0A02C5753A7057C3FBF2F938" authority="Risso 1816" authorityName="Risso" authorityYear="1816" box="[843,1119,1701,1727]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="xiphias">
<emphasis id="B90B7E5F0A02C5753A7057C3FCF7F938" box="[843,858,1702,1727]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753A5757C3FC6BF938" box="[876,966,1702,1727]" italics="true" pageId="14" pageNumber="41">xiphias</emphasis>
Risso 1816
</taxonomicName>
. With the exception of 
<taxonomicName id="4C7FD9CE0A02C5753CBE57C3FEA2F962" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A02C5753CBE57C3FA39F938" box="[1413,1428,1702,1727]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C57539AC57A9FEA2F962" box="[151,271,1740,1765]" italics="true" pageId="14" pageNumber="41">adspersus</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C575382457A9FE17F962" box="[287,442,1740,1766]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="floridanus">
<emphasis id="B90B7E5F0A02C575382457A9FE83F962" box="[287,302,1740,1765]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C575380557A9FE17F962" box="[318,442,1740,1765]" italics="true" pageId="14" pageNumber="41">floridanus</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C7FD9CE0A02C57538F257A9FDD9F962" box="[457,628,1740,1766]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="longirostris">
<emphasis id="B90B7E5F0A02C57538F257A9FE75F962" box="[457,472,1740,1765]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C57538D357A9FDD9F962" box="[488,628,1740,1765]" italics="true" pageId="14" pageNumber="41">longirostris</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C7FD9CE0A02C5753B8B57A9FCE7F962" box="[688,842,1740,1766]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="maculatus">
<emphasis id="B90B7E5F0A02C5753B8B57A9FD12F962" box="[688,703,1740,1765]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753BF457A9FCE7F962" box="[719,842,1740,1765]" italics="true" pageId="14" pageNumber="41">maculatus</emphasis>
</taxonomicName>
, all these species possess a strong pre-anal spine easily separating them from 
<taxonomicName id="4C7FD9CE0A02C57538D35796FDF0F88B" box="[488,605,1778,1804]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A02C57538D35796FE5AF88B" box="[488,503,1779,1804]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753B3D5796FDF0F88B" box="[518,605,1779,1804]" italics="true" pageId="14" pageNumber="41">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A02C5753B5E5797FD69F88B" box="[613,708,1778,1804]" pageId="14" pageNumber="41" rank="species">
<emphasis id="B90B7E5F0A02C5753B5E5797FD69F88B" bold="true" box="[613,708,1778,1804]" pageId="14" pageNumber="41">sp. nov.</emphasis>
</taxonomicNameLabel>
Currently, 
<taxonomicName id="4C7FD9CE0A02C5753A715796FC1FF88B" box="[842,946,1778,1804]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="paivai">
<emphasis id="B90B7E5F0A02C5753A715796FCF4F88B" box="[842,857,1779,1804]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753A535796FC1FF88B" box="[872,946,1779,1804]" italics="true" pageId="14" pageNumber="41">paivai</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C7FD9CE0A02C5753AD75796FBC8F88B" box="[1004,1125,1778,1804]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="roselesi">
<emphasis id="B90B7E5F0A02C5753AD75796FC56F88B" box="[1004,1019,1779,1804]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753D315796FBC8F88B" box="[1034,1125,1779,1804]" italics="true" pageId="14" pageNumber="41">roselesi</emphasis>
</taxonomicName>
are poorly known and the pre-anal spine is not mentioned in their original descriptions. 
<taxonomicName id="4C7FD9CE0A02C5753A4A567CFBE6F8B5" box="[881,1099,1817,1842]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="roselesi">
<emphasis id="B90B7E5F0A02C5753A4A567CFBE6F8B5" box="[881,1099,1817,1842]" italics="true" pageId="14" pageNumber="41">Palaemon roselesi</emphasis>
</taxonomicName>
(currently known only from 
<collectingCountry id="F368E2DD0A02C57539AC5625FF5EF8DD" box="[151,243,1856,1882]" name="Mexico" pageId="14" pageNumber="41">Mexico</collectingCountry>
) has a downwards sloping rostrum with dorsal teeth along its full length and 
<taxonomicName id="4C7FD9CE0A02C5753DB55625FB5BF8DE" box="[1166,1270,1856,1882]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="paivai">
<emphasis id="B90B7E5F0A02C5753DB55625FB30F8DE" box="[1166,1181,1856,1881]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753D975625FB5BF8DE" box="[1196,1270,1856,1881]" italics="true" pageId="14" pageNumber="41">paivai</emphasis>
</taxonomicName>
(from 
<collectingCountry id="F368E2DD0A02C5753C715625FA39F8DD" box="[1354,1428,1856,1882]" name="Brazil" pageId="14" pageNumber="41">Brazil</collectingCountry>
) has broad straight rostrum which would serve to separate them from 
<taxonomicName id="4C7FD9CE0A02C5753D395602FBD2F807" box="[1026,1151,1895,1921]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A02C5753D395602FBBFF807" box="[1026,1042,1895,1920]" italics="true" pageId="14" pageNumber="41">P</emphasis>
. 
<emphasis id="B90B7E5F0A02C5753D185602FBD2F807" box="[1059,1151,1895,1920]" italics="true" pageId="14" pageNumber="41">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A02C5753DB25603FB42F807" box="[1161,1263,1894,1920]" pageId="14" pageNumber="41" rank="species">
<emphasis id="B90B7E5F0A02C5753DB25603FB42F807" bold="true" box="[1161,1263,1894,1920]" pageId="14" pageNumber="41">sp. nov.</emphasis>
</taxonomicNameLabel>
which has an upturned, slender rostrum that is unarmed distally. In 
<taxonomicName id="4C7FD9CE0A02C5753A2B56EBFC2AF820" box="[784,903,1934,1959]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="elegans">
<emphasis id="B90B7E5F0A02C5753A2B56EBFC2AF820" box="[784,903,1934,1959]" italics="true" pageId="14" pageNumber="41">P. elegans</emphasis>
</taxonomicName>
the pre-anal spine is occasionally reduced or lacking however it may separated from the new species by having a quadrate versus acute posterodistal angle to its fifth abdominal pleura. 
<taxonomicName id="4C7FD9CE0A02C57538C856BEFD67F873" box="[499,714,2011,2036]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="14" pageNumber="41" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A02C57538C856BEFD67F873" box="[499,714,2011,2036]" italics="true" pageId="14" pageNumber="41">Palaemon powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A02C5753BE956BFFC9DF873" box="[722,816,2010,2036]" pageId="14" pageNumber="41" rank="species">
<emphasis id="B90B7E5F0A02C5753BE956BFFC9DF873" bold="true" box="[722,816,2010,2036]" pageId="14" pageNumber="41">sp. nov.</emphasis>
</taxonomicNameLabel>
can be separated from 
<emphasis id="B90B7E5F0A02C5753D7C56BEFB76F873" box="[1095,1243,2011,2036]" italics="true" pageId="14" pageNumber="41">P. m a c u l a t u s</emphasis>
by the shape of the rostrum (upturned versus straight and slender), the proportions of the second pereiopod (compare 
<figureCitation id="1344BEC80A03C5743C7451FDFF08FF5F" captionStart="FIGURE 2" captionStartId="3.[151,257,1934,1958]" captionTargetBox="[167,1413,188,1910]" captionTargetId="figure@3.[160,1424,144,1919]" captionTargetPageId="3" captionText="FIGURE 2. Palaemon maculatus (Thallwitz). Bonny River, Nigeria, ov. female (pocl 6.8). USNM 181904. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Third pereiopod. E. Same, dactylus. F. Fourth pereiopod. G. Fifth pereiopod. Scale bars indicate 1 mm (B, D, F – G), 0.7 mm (A), 0.5 mm (C) or 0.35 mm (E)." httpUri="https://zenodo.org/record/187394/files/figure.png" pageId="15" pageNumber="42">Figure 2</figureCitation>
b with 
<figureCitation id="1344BEC80A03C57439CC51DBFEF7FF5F" box="[247,346,190,216]" captionStart="FIGURE 5" captionStartId="10.[151,255,1941,1965]" captionTargetBox="[190,1399,188,1906]" captionTargetId="figure@10.[172,1416,166,1914]" captionTargetPageId="10" captionText="FIGURE 5. Palaemon powelli sp. nov., paratype NHM 1980.325 c. A. First pereiopod. B. Second pereiopod. C. Same, chela. D. Second pereiopod, chela, proximal. E. Same, distal. Scale bar indicates 1 mm (A, C), 0.7 mm (B) or 0.35 m (D, E.)." httpUri="https://zenodo.org/record/187397/files/figure.png" pageId="15" pageNumber="42">Figure 5</figureCitation>
b) and the grooming brush of the fifth pereiopod, which extends much further and comprises 11 rows of setae compared to 
<quantity id="4C870FA80A03C57438CF5180FD8CFF78" box="[500,545,229,255]" metricMagnitude="-2" metricUnit="m" metricValue="5.08" pageId="15" pageNumber="42" unit="in" value="2.0">2 in</quantity>
<taxonomicName id="4C7FD9CE0A03C5743B135180FD36FF79" box="[552,667,229,255]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C5743B135180FD9AFF79" box="[552,567,229,254]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743B7E5180FD36FF79" box="[581,667,229,254]" italics="true" pageId="15" pageNumber="42">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C5743B985180FCADFF78" box="[675,768,229,255]" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C5743B985180FCADFF78" bold="true" box="[675,768,229,255]" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
The western Atlantic, 
<taxonomicName id="4C7FD9CE0A03C5743D305180FB0CFF79" box="[1035,1185,229,254]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="floridanus">
<emphasis id="B90B7E5F0A03C5743D305180FB0CFF79" box="[1035,1185,229,254]" italics="true" pageId="15" pageNumber="42">P. floridanus</emphasis>
</taxonomicName>
has a greater number of ventral rostral teeth that 
<taxonomicName id="4C7FD9CE0A03C57438EC5069FDE6FEA2" box="[471,587,268,294]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C57438EC5069FE4BFEA2" box="[471,486,268,293]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C57438CE5069FDE6FEA2" box="[501,587,268,293]" italics="true" pageId="15" pageNumber="42">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C5743B6F506EFD1CFEA2" box="[596,689,267,293]" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C5743B6F506EFD1CFEA2" bold="true" box="[596,689,267,293]" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
(5–9 versus 3–4). From 
<taxonomicName id="4C7FD9CE0A03C5743AED5069FBC5FEA2" box="[982,1128,268,293]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A03C5743AED5069FBC5FEA2" box="[982,1128,268,293]" italics="true" pageId="15" pageNumber="42">P. adspersus</emphasis>
</taxonomicName>
it can be separated by the shape of the rostrum (straight and broad in 
<taxonomicName id="4C7FD9CE0A03C5743BAF5057FC8BFECC" box="[660,806,306,331]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A03C5743BAF5057FC8BFECC" box="[660,806,306,331]" italics="true" pageId="15" pageNumber="42">P. adspersus</emphasis>
</taxonomicName>
versus slender and upturned), the shape of the chelae (less elongate in 
<taxonomicName id="4C7FD9CE0A03C5743866503CFE42FEF5" box="[349,495,345,370]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A03C5743866503CFE42FEF5" box="[349,495,345,370]" italics="true" pageId="15" pageNumber="42">P. adspersus</emphasis>
</taxonomicName>
) and the number of rows in the grooming brush on the propodus of pereiopod 5 (4 rows in 
<taxonomicName id="4C7FD9CE0A03C574382750E5FE19FE1E" box="[284,436,384,410]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="adspersus">
<emphasis id="B90B7E5F0A03C574382750E5FE86FE1E" box="[284,299,384,409]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C574380050E5FE19FE1E" box="[315,436,384,409]" italics="true" pageId="15" pageNumber="42">adspersus</emphasis>
</taxonomicName>
versus 2 rows in 
<taxonomicName id="4C7FD9CE0A03C5743BB750E5FCA8FE1E" box="[652,773,384,410]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C5743BB750E5FD36FE1E" box="[652,667,384,409]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743B9750E5FCA8FE1E" box="[684,773,384,409]" italics="true" pageId="15" pageNumber="42">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C5743A36501AFCC3FE1E" box="[781,878,383,409]" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C5743A36501AFCC3FE1E" bold="true" box="[781,878,383,409]" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
). The taxonomy of 
<taxonomicName id="4C7FD9CE0A03C5743D5850E5FAA2FE1E" box="[1123,1295,384,410]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="longirostris">
<emphasis id="B90B7E5F0A03C5743D5850E5FBDFFE1E" box="[1123,1138,384,409]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743DB950E5FAA2FE1E" box="[1154,1295,384,409]" italics="true" pageId="15" pageNumber="42">longirostris</emphasis>
</taxonomicName>
is not fully resolved with 
<bibRefCitation id="EFEEDFBC0A03C574387A50C3FCACFE47" author="Gonzalez-Ortegon" box="[321,769,422,448]" pageId="15" pageNumber="43" refString="Gonzalez-Ortegon, E. &amp; Cuesta, J. A. (2006) An illustrated key to species of Palaemon and Palaemonetes (Crustacea: Decapoda: Caridea) from European waters, including the alien species Palaemon macrodactylus. Journal of the Marine Biological Association of the United Kingdom 86: 93 - 102." type="journal article" year="2006">González-Ortegón and Cuesta (2006)</bibRefCitation>
reporting two morphological forms. The northern form has a straight, deep rostrum with dorsal teeth along its length and is not easily confused with 
<taxonomicName id="4C7FD9CE0A03C5743DC150A8FADDFE61" box="[1274,1392,461,487]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C5743DC150A8FAA4FE61" box="[1274,1289,461,486]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743C2350A8FADDFE61" box="[1304,1392,461,486]" italics="true" pageId="15" pageNumber="42">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C5743C4350A8FF66FD8A" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C5743C4350A8FF66FD8A" bold="true" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
The southern form has a more slender and slightly upturned rostrum and is therefore more likely to be confused with the new species. It may be distinguished from 
<taxonomicName id="4C7FD9CE0A03C5743A45537FFC5BFDB4" box="[894,1014,538,564]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C5743A45537FFC20FDB4" box="[894,909,538,563]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743AA6537FFC5BFDB4" box="[925,1014,538,563]" italics="true" pageId="15" pageNumber="42">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C5743AC5537FFBF2FDB3" box="[1022,1119,538,564]" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C5743AC5537FFBF2FDB3" bold="true" box="[1022,1119,538,564]" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
by the number of rows of setae in the grooming brush of the fifth pereiopod (4 versus 2), the shape of the antennular peduncle as well as its larger size.
</paragraph>
<paragraph id="8BC0A24D0A03C57439FE53EBFBD3FC9B" blockId="15.[151,1437,152,1222]" pageId="15" pageNumber="42">
<collectingCountry id="F368E2DD0A03C57439FE53EBFF4BFD2F" box="[197,230,654,680]" name="American Samoa" pageId="15" pageNumber="42">As</collectingCountry>
is normal in 
<taxonomicName id="4C7FD9CE0A03C574384553EAFE58FD2F" box="[382,501,655,680]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="genus">
<emphasis id="B90B7E5F0A03C574384553EAFE58FD2F" box="[382,501,655,680]" italics="true" pageId="15" pageNumber="42">Palaemon</emphasis>
</taxonomicName>
(
<emphasis id="B90B7E5F0A03C5743B3E53EAFDBFFD2F" box="[517,530,655,680]" italics="true" pageId="15" pageNumber="42">e</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743B2153EAFD84FD2F" box="[538,553,655,680]" italics="true" pageId="15" pageNumber="42">g</emphasis>
. Yaldwyn, 1957; 
<bibRefCitation id="EFEEDFBC0A03C5743BCC53EBFCDBFD2F" author="Gutu" box="[759,886,654,680]" pageId="15" pageNumber="43" refString="Gutu, M. (1971) Precisions concernant le rostre chez Palaemon adspersus Rathke (Crustacea-Decapoda) de la Mer Noire, considere comme criterium taxonomique. Travaux Du Museum d'Histoire Naturelle &quot; Grigore Antipa &quot; 2: 83 - 90." type="journal article" year="1971">Gutu 1971</bibRefCitation>
; 
<bibRefCitation id="EFEEDFBC0A03C5743AB953EBFB9AFD2F" author="De" box="[898,1079,654,680]" pageId="15" pageNumber="43" refString="De Grave, S. (1999) Rostral variation in Palaemon concinnus Dana, 1852 (Decapoda, Palaemonidae). Crustaceana 72: 701 - 704." type="journal article" year="1999">
<collectingCountry id="F368E2DD0A03C5743AB953EBFC09FD2F" box="[898,932,654,680]" name="South Georgia and the South Sandwich Islands" pageId="15" pageNumber="42">De</collectingCountry>
Grave 1999
</bibRefCitation>
; 
<bibRefCitation id="EFEEDFBC0A03C5743D7853EBFF7BFD48" author="De" pageId="15" pageNumber="43" refString="De Grave, S. &amp; Al-Maslamani, I. (2006) A new species of Palaemon (Crustacea, Decapoda, Palaemonidae) from Qatar. Zootaxa 1187: 37 - 46." type="journal article" year="2006">
<collectingCountry id="F368E2DD0A03C5743D7853EBFBC8FD2F" box="[1091,1125,654,680]" name="South Georgia and the South Sandwich Islands" pageId="15" pageNumber="42">De</collectingCountry>
Grave and Al-Maslamani, 2006
</bibRefCitation>
), 
<taxonomicName id="4C7FD9CE0A03C57439D153D0FEF3FD49" box="[234,350,693,719]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C57439D153D0FF54FD49" box="[234,249,693,718]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C574383353D0FEF3FD49" box="[264,350,693,718]" italics="true" pageId="15" pageNumber="42">powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C574385D53D0FE69FD48" box="[358,452,693,719]" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C574385D53D0FE69FD48" bold="true" box="[358,452,693,719]" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
shows variation in its rostrum shape and dentition. Some of this variation is shown in 
<figureCitation id="1344BEC80A03C574398C53B9FE85FD71" box="[183,296,732,758]" captionStart="FIGURE 8" captionStartId="13.[151,255,1360,1384]" captionTargetBox="[184,1414,678,1323]" captionTargetId="figure@13.[150,1435,661,1336]" captionTargetPageId="13" captionText="FIGURE 8. Palaemon powelli sp. nov., rostral variation NHM 1980.325 d. A. Ov. female, pocl 4.6. B. Ov. female, pocl 5.0. C. Ov. female, pocl 4.6. D. Female, pocl 3.0. E. Female, pocl 3.4. F. Female (pocl 3.5). Scale bar indicates 1 mm." httpUri="https://zenodo.org/record/187400/files/figure.png" pageId="15" pageNumber="42">Figures 8</figureCitation>
A–F but this should be regarded as indicative rather than comprehensive. Although there are usually 3–4 ventral rostral teeth, one specimen (RMNH.D 49892) has 6 ventral teeth.
</paragraph>
<paragraph id="8BC0A24D0A03C57439FE524CFD10FC17" blockId="15.[151,1437,152,1222]" pageId="15" pageNumber="42">
<bibRefCitation id="EFEEDFBC0A03C57439FE524CFEDEFCC4" author="Powell" box="[197,371,809,835]" pageId="15" pageNumber="43" refString="Powell C. B. (1983) Fresh and brackish water shrimps of economic importance in the Niger Delta. In Proceedings of Second Annual Conference of the Fisheries Society of Nigeria, Calabar. pp. 254 - 285." type="book chapter" year="1983">Powell (1983)</bibRefCitation>
provides a brief diagnosis of this species which is based largely on colour pattern (see description of colour pattern, above) but also he mentions some rostral features. The rostral features he mentions agree well with those described here.
</paragraph>
<paragraph id="8BC0A24D0A03C57439FE52F8FE9FFB41" blockId="15.[151,1437,152,1222]" pageId="15" pageNumber="42">
Although formally undescribed until now, the presence of 
<taxonomicName id="4C7FD9CE0A03C5743A4D52F8FC47FC31" box="[886,1002,925,950]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="powelli" status="sp. nov.">
<emphasis id="B90B7E5F0A03C5743A4D52F8FC47FC31" box="[886,1002,925,950]" italics="true" pageId="15" pageNumber="42">P. powelli</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A238C3240A03C5743AC952F8FBFCFC30" box="[1010,1105,925,951]" pageId="15" pageNumber="42" rank="species">
<emphasis id="B90B7E5F0A03C5743AC952F8FBFCFC30" bold="true" box="[1010,1105,925,951]" pageId="15" pageNumber="42">sp. nov.</emphasis>
</taxonomicNameLabel>
in the 
<collectingCountry id="F368E2DD0A03C5743D9852F8FB4BFC30" box="[1187,1254,925,951]" name="Niger" pageId="15" pageNumber="42">Niger</collectingCountry>
Delta has been known for many years and, in accordance with the suggestion of 
<bibRefCitation id="EFEEDFBC0A03C5743AB552A1FB95FC59" author="Powell" box="[910,1080,964,990]" pageId="15" pageNumber="43" refString="Powell C. B. (1983) Fresh and brackish water shrimps of economic importance in the Niger Delta. In Proceedings of Second Annual Conference of the Fisheries Society of Nigeria, Calabar. pp. 254 - 285." type="book chapter" year="1983">Powell (1983)</bibRefCitation>
, some possible references to it are found in the literature as ‘ 
<taxonomicName id="4C7FD9CE0A03C5743B3E528FFD2DFB84" box="[517,640,1002,1027]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="genus">
<emphasis id="B90B7E5F0A03C5743B3E528FFD2DFB84" box="[517,640,1002,1027]" italics="true" pageId="15" pageNumber="42">Palaemon</emphasis>
</taxonomicName>
sp. A Powell’ (
<bibRefCitation id="EFEEDFBC0A03C5743A7A528FFBA2FB83" author="Marioghae" box="[833,1039,1002,1028]" pageId="15" pageNumber="43" refString="Marioghae, I. E. (1987) An appraisal of the cultivability of Nigerian palaemonid prawns. African Regional Aquaculture Centre, Working Paper 4: 1 - 11." type="journal article" year="1987">Marioghae 1987</bibRefCitation>
; 
<bibRefCitation id="EFEEDFBC0A03C5743D27528FFB42FB83" author="Ajayi" box="[1052,1263,1002,1028]" pageId="15" pageNumber="42" refString="Ajayi, T. O., Anyanwu, A. O., Adetayo, J. O., Abohweyere, P. O., Isebor, C. E., Abass, M. A., Oyebanji, M. O., Omotoyo, N. O. &amp; Ambrose, A. A. (1995) A survey of white shrimp (Nematopalaemon hastatus) fishery of Nigeria and its mechanisation status. 4 - 9. In: Nigerian Institute for Oceanography and Marine Research, Victoria Island, Lagos: 1995 Annual Report." type="journal article" year="1995">
Ajayi 
<emphasis id="B90B7E5F0A03C5743D53528FFB32FB84" box="[1128,1183,1002,1027]" italics="true" pageId="15" pageNumber="42">et al</emphasis>
. 1995
</bibRefCitation>
; 
<bibRefCitation id="EFEEDFBC0A03C5743DC6528FFEE3FBAC" author="Adeyeye" pageId="15" pageNumber="42" refString="Adeyeye, E. I. &amp; Adubiaro, H. O. (2004) Chemical composition of shell and flesh of three prawn samples from Lagos lagoon. Journal of the Science of Food and Agriculture, 84 (5), 411 - 414." type="journal article" year="2004">Adeyeye and Adubiaro 2004</bibRefCitation>
). Despite its small size, 
<bibRefCitation id="EFEEDFBC0A03C5743B555577FCA5FBAD" author="Powell" box="[622,776,1042,1066]" pageId="15" pageNumber="43" refString="Powell C. B. (1983) Fresh and brackish water shrimps of economic importance in the Niger Delta. In Proceedings of Second Annual Conference of the Fisheries Society of Nigeria, Calabar. pp. 254 - 285." type="book chapter" year="1983">Powell (1983</bibRefCitation>
, 
<bibRefCitation id="EFEEDFBC0A03C5743A2E5577FCE2FBAD" author="Powell" box="[789,847,1042,1066]" pageId="15" pageNumber="43" refString="Powell, C. B. (1985) The decapod crustaceans of the Niger Delta, pp. 226 - 238. In: Wilcox B. H. R., Powell C. B. (eds). The mangrove ecosystem of the Niger Delta: proceedings of a workshop. University of Port Harcourt Press, Port Harcourt: i - v + 1 - 357." type="book chapter" year="1985">1985</bibRefCitation>
) stated that the species has some fisheries potential and is often present in catches of 
<taxonomicName id="4C7FD9CE0A03C5743B0D555DFD7EFBD6" box="[566,723,1080,1106]" class="Malacostraca" family="Palaemonidae" genus="Palaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="maculatus">
<emphasis id="B90B7E5F0A03C5743B0D555DFDE8FBD6" box="[566,581,1080,1105]" italics="true" pageId="15" pageNumber="42">P</emphasis>
. 
<emphasis id="B90B7E5F0A03C5743B6D555DFD7EFBD6" box="[598,723,1080,1105]" italics="true" pageId="15" pageNumber="42">maculatus</emphasis>
</taxonomicName>
and there is evidence (
<bibRefCitation id="EFEEDFBC0A03C5743ACB555DFB69FBD5" author="Ajayi" box="[1008,1220,1080,1106]" pageId="15" pageNumber="42" refString="Ajayi, T. O., Anyanwu, A. O., Adetayo, J. O., Abohweyere, P. O., Isebor, C. E., Abass, M. A., Oyebanji, M. O., Omotoyo, N. O. &amp; Ambrose, A. A. (1995) A survey of white shrimp (Nematopalaemon hastatus) fishery of Nigeria and its mechanisation status. 4 - 9. In: Nigerian Institute for Oceanography and Marine Research, Victoria Island, Lagos: 1995 Annual Report." type="journal article" year="1995">
Ajayi 
<emphasis id="B90B7E5F0A03C5743D04555DFBDBFBD6" box="[1087,1142,1080,1105]" italics="true" pageId="15" pageNumber="42">et al</emphasis>
. 1995
</bibRefCitation>
) that it may have limited commercial importance and may be a by-catch species of the fishery for 
<taxonomicName id="4C7FD9CE0A03C5743D64553AFEC1FB18" authority="Aurivillius 1898" authorityName="Aurivillius" authorityYear="1898" class="Malacostraca" family="Palaemonidae" genus="Nematopalaemon" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="42" phylum="Arthropoda" rank="species" species="hastatus">
<emphasis id="B90B7E5F0A03C5743D64553AFA31FBFF" box="[1119,1436,1119,1144]" italics="true" pageId="15" pageNumber="42">Nematopalaemon hastatus</emphasis>
(Aurivillius 1898)
</taxonomicName>
although 
<bibRefCitation id="EFEEDFBC0A03C57438D855E0FD14FB18" author="Marioghae" box="[483,697,1157,1183]" pageId="15" pageNumber="43" refString="Marioghae, I. E. (1987) An appraisal of the cultivability of Nigerian palaemonid prawns. African Regional Aquaculture Centre, Working Paper 4: 1 - 11." type="journal article" year="1987">Marioghae (1987)</bibRefCitation>
suggests that the small size of this species makes it unsuitable for culturing.
</paragraph>
</subSubSection>
</treatment>
</document>