349 lines
71 KiB
XML
349 lines
71 KiB
XML
<document id="65EB534E0FCD8CBD7CFBE14FCCA89928" ID-CLB-Dataset="26151" ID-DOI="10.11646/zootaxa.4646.1.5" ID-GBIF-Dataset="cd55c657-9465-4ab3-9e76-d885c145caba" ID-ISSN="1175-5326" ID-Zenodo-Dep="3346375" ID-ZooBank="9DBCFAB6-5D6A-40E8-AC85-617E02879679" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1563862758078" checkinUser="plazi" docAuthor="Anker, Arthur" docDate="2019" docId="B074274DFFBFFFFDFF31FCB6FDF10529" docLanguage="en" docName="zootaxa.4646.1.5.pdf" docOrigin="Zootaxa 4646 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Nennalpheus gabonensis Anker 2019, sp. nov." docType="treatment" docVersion="7" lastPageNumber="92" masterDocId="4C4D5F35FFBEFFF8FFA6FFDFFF9C074A" masterDocTitle="The alpheid shrimp genus Nennalpheus Banner & Banner, 1981 in the tropical eastern Atlantic, with description of a new species from Gabon and new records of N. sibogae (De Man, 1910) in the Indo-West Pacific (Malacostraca: Decapoda: Caridea)" masterLastPageNumber="100" masterPageNumber="87" pageNumber="88" updateTime="1698746988302" updateUser="ExternalLinkService">
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<mods:title id="38AD25C259BD3BA4E83C0814BBD810B5">The alpheid shrimp genus Nennalpheus Banner & Banner, 1981 in the tropical eastern Atlantic, with description of a new species from Gabon and new records of N. sibogae (De Man, 1910) in the Indo-West Pacific (Malacostraca: Decapoda: Caridea)</mods:title>
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<mods:namePart id="BA895EBA485DA4A7C793B50A2325E71A">Anker, Arthur</mods:namePart>
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<mods:title id="7BD9F07B30644BE0FB077D580AB07B32">Zootaxa</mods:title>
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<mods:part id="E43C1585BA1E5E89FC407B6C0661FD1C">
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<mods:date id="8D7494BFDA3474A951461CB822CE47A5">2019</mods:date>
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<mods:number id="2DCCA90E393F5DEEDCC8A31963A1FC6C">2019-07-23</mods:number>
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<mods:number id="A41AAAF71B91B38B6268A9B3891644A7">4646</mods:number>
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<mods:identifier id="FC1EA02F0091728EF496194B32849A8F" type="DOI">10.11646/zootaxa.4646.1.5</mods:identifier>
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<treatment id="B074274DFFBFFFFDFF31FCB6FDF10529" ID-GBIF-Taxon="158849592" LSID="urn:lsid:plazi:treatment:B074274DFFBFFFFDFF31FCB6FDF10529" httpUri="http://treatment.plazi.org/id/B074274DFFBFFFFDFF31FCB6FDF10529" lastPageId="5" lastPageNumber="92" pageId="1" pageNumber="88">
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<subSubSection id="70C7C5D0FFBFFFF9FF31FCB6FDB004C9" box="[151,556,873,900]" pageId="1" pageNumber="88" type="nomenclature">
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<paragraph id="3862965BFFBFFFF9FF31FCB6FDB004C9" blockId="1.[151,556,873,935]" box="[151,556,873,900]" pageId="1" pageNumber="88">
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<heading id="632A2137FFBFFFF9FF31FCB6FDB004C9" bold="true" box="[151,556,873,900]" fontSize="11" level="1" pageId="1" pageNumber="88" reason="1">
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<emphasis id="0AA94A49FFBFFFF9FF31FCB6FDB004C9" bold="true" box="[151,556,873,900]" pageId="1" pageNumber="88">
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<taxonomicName id="FFDDEDD8FFBFFFF9FF31FCB6FE5B04CE" ID-CoL="85VW7" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[151,455,873,900]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="88" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
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<emphasis id="0AA94A49FFBFFFF9FF31FCB6FE5B04CE" bold="true" box="[151,455,873,900]" italics="true" pageId="1" pageNumber="88">Nennalpheus gabonensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="119AF732FFBFFFF9FE69FCB6FDB004C9" box="[463,556,873,899]" pageId="1" pageNumber="88" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="70C7C5D0FFBFFFF9FF31FC52FED104ED" box="[151,333,908,935]" pageId="1" pageNumber="88" type="description">
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<paragraph id="3862965BFFBFFFF9FF31FC52FED104ED" blockId="1.[151,556,873,935]" box="[151,333,908,935]" pageId="1" pageNumber="88">
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<figureCitation id="A0E68ADEFFBFFFF9FF31FC52FE8204ED" box="[151,286,909,935]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="3.[151,250,1860,1885]" captionStartId-1="4.[151,250,1442,1467]" captionStartId-2="5.[151,250,1903,1928]" captionStartId-3="6.[151,250,1825,1850]" captionTargetBox-0="[197,1411,198,1819]" captionTargetBox-1="[162,1428,193,1414]" captionTargetBox-2="[202,1382,640,1871]" captionTargetBox-3="[184,1386,174,1792]" captionTargetId-0="figure@3.[154,1434,181,1835]" captionTargetId-1="figure@4.[151,1436,181,1422]" captionTargetId-2="figure@5.[194,1393,633,1883]" captionTargetId-3="figure@6.[175,1412,166,1805]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionText-0="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." captionText-1="FIGURE 2. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right third maxilliped, lateral view; B—same, apex of ultimate article, dorsal (left) and mesial (right) views; C—left first pleopod, lateral view; D—same, endopod; E—left second pleopod, lateral view; F—same, appendix masculina and appendix interna." captionText-2="FIGURE 3. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right cheliped with fingers slightly opened, lateral view; B—same, mesial view; C—same, ischium, merus and carpus, lateral view; D—same, cheliped fingers closed, lateral view; E, F, G—same, cheliped fingers slightly opened, mesial (E), dorsomesial (F) and ventromesial (G) views." captionText-3="FIGURE 4. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061:A—right second pereiopod, lateral view; B—right third pereiopod, lateral view; C—same, propodus and dactylus, lateral view; D—same, distal portion of propodus and dactylus, lateral view; E—right fourth pereiopod, lateral view; F—same, propodus and dactylus, lateral view; G—same, distal portion of propodus and dactylus, lateral view; H—right fifth pereiopod (dactylus missing, indicated by broken line), lateral view; I—same, propodus (dactylus missing, indicated by broken line), lateral view; J—left fifth pereiopod, distal portion of propodus and dactylus, lateral view." httpUri-0="https://zenodo.org/record/3346377/files/figure.png" httpUri-1="https://zenodo.org/record/3346379/files/figure.png" httpUri-2="https://zenodo.org/record/3346381/files/figure.png" httpUri-3="https://zenodo.org/record/3346383/files/figure.png" pageId="1" pageNumber="88">Figures 1–4</figureCitation>
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,
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<figureCitation id="A0E68ADEFFBFFFF9FE8CFC53FED104ED" box="[298,333,908,935]" captionStart="FIGURE 5" captionStartId="7.[151,250,1279,1304]" captionTargetBox="[151,1436,181,1260]" captionTargetId="figure@7.[151,1436,181,1260]" captionTargetPageId="7" captionText="FIGURE 5. A—Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061, living shrimp photographed in an aquarium soon after the collection [photograph by Patrick Louisy]; B, C—Habitat of Nennalpheus gabonensis sp. nov., silted reef with gorgonians, sponges and massive corals [photographs by Peter Wirtz]." httpUri="https://zenodo.org/record/3346385/files/figure.png" pageId="1" pageNumber="88">5A</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="70C7C5D0FFBFFFFDFF31FC0AFDF10529" lastPageId="5" lastPageNumber="92" pageId="1" pageNumber="88" type="materials_examined">
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<paragraph id="3862965BFFBFFFF9FF31FC0AFA9E0359" blockId="1.[151,1436,980,2015]" pageId="1" pageNumber="88">
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<emphasis id="0AA94A49FFBFFFF9FF31FC0AFED904A5" bold="true" box="[151,325,980,1007]" pageId="1" pageNumber="88">Type material</emphasis>
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.
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<materialsCitation id="88B59C06FFBFFFF9FEFCFC0AFA9E0359" ID-GBIF-Occurrence="2293867448" collectingDate="2017-11-27" collectionCode="OUMNH, ZC" collectorName="P. Wirtz" country="Gabon" elevation="11" latitude="0.6745666" location="Gabon" longLatPrecision="1" longitude="9.270717" pageId="1" pageNumber="88" specimenCount="1" typeStatus="holotype">
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<collectingCountry id="40CAD6CBFFBFFFF9FEFCFC0AFE3904A5" box="[346,421,981,1007]" name="Gabon" pageId="1" pageNumber="88">Gabon</collectingCountry>
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.
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<typeStatus id="E76628F9FFBFFFF9FE1FFC0AFDBA04A5" box="[441,550,981,1007]" pageId="1" pageNumber="88" type="holotype">Holotype</typeStatus>
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: male (cl
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<quantity id="FF253BBEFFBFFFF9FD01FC0AFC9404A5" box="[679,776,981,1007]" metricMagnitude="-3" metricUnit="m" metricValue="8.4" pageId="1" pageNumber="88" unit="mm" value="8.4">8.4 mm</quantity>
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),
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<collectionCode id="5ECC0E9EFFBFFFF9FC84FC0AFC0E04A5" box="[802,914,981,1007]" pageId="1" pageNumber="88">OUMNH</collectionCode>
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.
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||
<collectionCode id="5ECC0E9EFFBFFFF9FC33FC0AFC2604A5" box="[917,954,981,1007]" country="Austria" name="Zoological Collection, University of Vienna" pageId="1" pageNumber="88" type="University or college">ZC</collectionCode>
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||
. 2018.01.061, Sahoué, off Cap Esterias,
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<geoCoordinate id="5DE9F09CFFBFFFF9FF31FC26FE870359" box="[151,283,1017,1043]" degrees="0" direction="north" minutes="40.474" orientation="latitude" pageId="1" pageNumber="88" precision="1" value="0.6745666">0°40.474’N</geoCoordinate>
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<geoCoordinate id="5DE9F09CFFBFFFF9FE84FC26FE390359" box="[290,421,1017,1043]" degrees="9" direction="east" minutes="16.243" orientation="longitude" pageId="1" pageNumber="88" precision="1" value="9.270717">9°16.243’E</geoCoordinate>
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, scuba diving, rocky reef, under rock, depth:
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<elevation id="B3F07168FFBFFFF9FC07FC26FC470359" box="[929,987,1017,1043]" metricMagnitude="1" metricUnit="m" metricValue="1.1" pageId="1" pageNumber="88" unit="m" value="11.0">
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<quantity id="FF253BBEFFBFFFF9FC07FC26FC470359" box="[929,987,1017,1043]" metricMagnitude="1" metricUnit="m" metricValue="1.1" pageId="1" pageNumber="88" unit="m" value="11.0">11 m</quantity>
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</elevation>
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, leg.
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<collectorName id="9528F38DFFBFFFF9FBB1FC26FBEF0359" box="[1047,1139,1017,1043]" pageId="1" pageNumber="88">P. Wirtz</collectorName>
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,
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||
<collectingDate id="5C274973FFBFFFF9FBDBFC26FB620359" box="[1149,1278,1017,1043]" pageId="1" pageNumber="88" value="2017-11-27">
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<date id="4C63B09BFFBFFFF9FBDBFC26FB620359" box="[1149,1278,1017,1043]" pageId="1" pageNumber="88" value="2017-11-27">27.11.2017</date>
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</collectingDate>
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.
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</materialsCitation>
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</paragraph>
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||
<paragraph id="3862965BFFBFFFF9FF51FBC3FAC70245" blockId="1.[151,1436,980,2015]" pageId="1" pageNumber="88">
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<emphasis id="0AA94A49FFBFFFF9FF51FBC3FE1D037D" bold="true" box="[247,385,1052,1079]" pageId="1" pageNumber="88">Description</emphasis>
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. Medium-sized alpheid shrimp (
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<typeStatus id="E76628F9FFBFFFF9FD5AFBC2FCFC037D" box="[764,864,1053,1079]" pageId="1" pageNumber="88" type="holotype">holotype</typeStatus>
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at cl
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<quantity id="FF253BBEFFBFFFF9FC0EFBC2FB9A037D" box="[936,1030,1053,1079]" metricMagnitude="-3" metricUnit="m" metricValue="8.4" pageId="1" pageNumber="88" unit="mm" value="8.4">8.4 mm</quantity>
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). Carapace glabrous. Rostrum well developed but relatively short, subtriangular, about 1.5 times as long as broad at base, acute distally, falling short of mid-length of first article of antennular peduncle; rostral carina not distinct; lateral margin not setose (
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<figureCitation id="A0E68ADEFFBFFFF9FA98FBBAFF3003E9" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1A, B</figureCitation>
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). Orbital hoods moderately developed, slightly swollen, covering most of eyes in dorsal view, except for anterior-most portion, and only partly concealing eyes laterally; anterior margin of each orbital hood projecting in form of broad blunt tooth, latter not reaching far beyond base of rostrum; margin between tooth and rostrum shallowly concave (
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<figureCitation id="A0E68ADEFFBFFFF9FEA4FB2AFEE00245" box="[258,380,1269,1295]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1A, B</figureCitation>
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). Pterygostomial angle rounded, not protruding (
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<figureCitation id="A0E68ADEFFBFFFF9FC39FB2AFC6A0245" box="[927,1014,1269,1295]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1B</figureCitation>
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); cardiac notch well developed.
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</paragraph>
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<paragraph id="3862965BFFBFFFF9FF61FAC6FE5402D5" blockId="1.[151,1436,980,2015]" pageId="1" pageNumber="88">
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Pleon with first to fourth pleura broadly rounded; fifth pleuron with blunt posteroventral angle; sixth pleonite with well-developed articulated flap (
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<figureCitation id="A0E68ADEFFBFFFF9FD98FAE2FD08021D" box="[574,660,1341,1367]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1E</figureCitation>
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); sternites of first to fifth pleonites each with strong median process, first four processes sharp diminishing in size towards posterior, fifth process shortest but also broadest of all, with bifid blunt tip (
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<figureCitation id="A0E68ADEFFBFFFF9FEE7FA5AFE2002D5" box="[321,444,1413,1439]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1C, D</figureCitation>
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).
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</paragraph>
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||
<paragraph id="3862965BFFBFFFF9FF61FA76FDA80119" blockId="1.[151,1436,980,2015]" pageId="1" pageNumber="88">
|
||
Telson moderately broad, subrectangular, tapering distally, more than twice as long as maximum width; dorsal surface with two pairs of stout spiniform setae both inserted at some distance from lateral margins, first pair at about telson mid-length, second pair between 0.7 and 0.8 of telson length; posterior margin protruding as broadly rounded lobe; posterolateral angles each with one pair of spiniform setae, mesial ones six to seven times longer and much stouter than lateral ones (
|
||
<figureCitation id="A0E68ADEFFBFFFF9FE17F9E6FDBB0119" box="[433,551,1593,1619]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1F, G</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBFFFF9FF61F982FBA501D1" blockId="1.[151,1436,980,2015]" pageId="1" pageNumber="88">
|
||
Eyestalk with very large well-pigmented cornea; anteromesial angle with short blunt process visible in dorsal view (
|
||
<figureCitation id="A0E68ADEFFBFFFF9FF7BF95EFEAA01D1" box="[221,310,1665,1691]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1A</figureCitation>
|
||
), but not in lateral view. Epistomial sclerite with short blunt process.
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBFFFF9FF61F97AFB7000DD" blockId="1.[151,1436,980,2015]" pageId="1" pageNumber="88">
|
||
Antennular peduncle relatively slender; stylocerite long, slender, with sharp tip reaching well beyond distal margin of first article, however, not reaching mid-length of second article; ventromesial carina with anteriorly directed tooth; second article elongate, about 2.5 times as long as wide; lateral antennular flagellum with short fused portion, consisting of five subdivisions, and well-developed secondary ramus, latter with numerous groups of aesthetascs (
|
||
<figureCitation id="A0E68ADEFFBFFFF9FF06F8EAFEBC0005" box="[160,288,1845,1871]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1B, H</figureCitation>
|
||
). Antenna with stout basicerite bearing slender sharp distoventral tooth; scaphocerite elongate, with straight lateral margin and well-developed blade, latter not overreaching small sharp distolateral tooth; carpocerite reaching well beyond scaphocerite and slightly exceeding end of antennular peduncle (
|
||
<figureCitation id="A0E68ADEFFBFFFF9FBC2F8A2FB4200DD" box="[1124,1246,1917,1943]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="1" pageNumber="88">Fig. 1A, B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBFFFFAFF61F87EFE3D07B1" blockId="1.[151,1436,980,2015]" lastBlockId="2.[151,1437,152,2015]" lastPageId="2" lastPageNumber="89" pageId="1" pageNumber="88">
|
||
Mouthparts typical for genus in external observation (see below under
|
||
<taxonomicName id="FFDDEDD8FFBFFFF9FC48F87DFBFB00F1" baseAuthorityName="De Man" baseAuthorityYear="1910" box="[1006,1127,1953,1979]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="88" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBFFFF9FC48F87DFBFB00F1" box="[1006,1127,1953,1979]" italics="true" pageId="1" pageNumber="88">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
). Third maxilliped slender, pediform; coxa with ear-shaped, distally subacute lateral plate; antepenultimate article slightly flattened ventrolater- ally; penultimate article about 3.5 times as long as wide; ultimate article with numerous rows of short serrulate setae and longer simple setae, apex armed with four (one apparently broken) stouter spiniform setae; arthrobranch well developed (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFEBCFF3EFE0F07B1" box="[282,403,225,251]" captionStart="FIGURE 2" captionStartId="4.[151,250,1442,1467]" captionTargetBox="[162,1428,193,1414]" captionTargetId="figure@4.[151,1436,181,1422]" captionTargetPageId="4" captionText="FIGURE 2. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right third maxilliped, lateral view; B—same, apex of ultimate article, dorsal (left) and mesial (right) views; C—left first pleopod, lateral view; D—same, endopod; E—left second pleopod, lateral view; F—same, appendix masculina and appendix interna." httpUri="https://zenodo.org/record/3346379/files/figure.png" pageId="2" pageNumber="89">Fig. 2A, B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61FEDAFCB60529" blockId="2.[151,1437,152,2015]" pageId="2" pageNumber="89">
|
||
Chelipeds symmetrical, very similar in size and shape, carried extended, inverted, with dactylus in ventral position; ischium very short, stout; merus moderately slender, noticeably widening distally, smooth, its distodorsal and distomesial margins unarmed; carpus shorter than high, somewhat cup-shaped, with strong acute distodorsal tooth and two rounded distomesial lobes; chela elongate, with palm about twice as long as fingers, smooth, subcylindrical in cross-section; dactylus slightly shorter than pollex, articulated in the same axis as palm, not twisted; cutting edge of dactylus with one stout bulging tooth at about mid-length, excavated distally, and two much smaller, simple, rounded teeth on proximal half, in addition to shallow proximal bump; pollex with similarly positioned, distally excavated bulging tooth, opposed to dactylar tooth, and two additional smaller, simple, rounded teeth proximally; fingertips and adjacent distal areas of dactylar cutting edges corneous; distoventral surface of palm and proximal surface of dactylus with small adhesive disks (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFD06FD96FD7C0529" box="[672,736,585,611]" captionStart="FIGURE 3" captionStartId="5.[151,250,1903,1928]" captionTargetBox="[202,1382,640,1871]" captionTargetId="figure@5.[194,1393,633,1883]" captionTargetPageId="5" captionText="FIGURE 3. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right cheliped with fingers slightly opened, lateral view; B—same, mesial view; C—same, ischium, merus and carpus, lateral view; D—same, cheliped fingers closed, lateral view; E, F, G—same, cheliped fingers slightly opened, mesial (E), dorsomesial (F) and ventromesial (G) views." httpUri="https://zenodo.org/record/3346381/files/figure.png" pageId="2" pageNumber="89">Fig. 3</figureCitation>
|
||
A–G).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61FDB2FCFE021D" blockId="2.[151,1437,152,2015]" pageId="2" pageNumber="89">
|
||
Second pereiopod slender; ischium and merus subequal in length; carpus with five subdivisions, first longer than sum of others, with ratio approximately equal to 6.0/1.2/1.0/1.2/1.3; chela as long as two distal-most carpal subdivisions combined (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFE0CFD6AFD990585" box="[426,517,693,719]" captionStart="FIGURE 4" captionStartId="6.[151,250,1825,1850]" captionTargetBox="[184,1386,174,1792]" captionTargetId="figure@6.[175,1412,166,1805]" captionTargetPageId="6" captionText="FIGURE 4. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061:A—right second pereiopod, lateral view; B—right third pereiopod, lateral view; C—same, propodus and dactylus, lateral view; D—same, distal portion of propodus and dactylus, lateral view; E—right fourth pereiopod, lateral view; F—same, propodus and dactylus, lateral view; G—same, distal portion of propodus and dactylus, lateral view; H—right fifth pereiopod (dactylus missing, indicated by broken line), lateral view; I—same, propodus (dactylus missing, indicated by broken line), lateral view; J—left fifth pereiopod, distal portion of propodus and dactylus, lateral view." httpUri="https://zenodo.org/record/3346383/files/figure.png" pageId="2" pageNumber="89">Fig. 4A</figureCitation>
|
||
). Third pereiopod slender; ischium with two spiniform setae on ventrolateral surface, inserted in deep pits; merus about 10 times as long as wide, unarmed; carpus about half-length of merus, noticeably more slender than merus, unarmed; propodus much longer than carpus but shorter than merus, with four spaced small spiniform setae on ventral margin in addition to one pair of longer spiniform setae near dactylar base, distodorsal margin with single spiniform seta near dactylar base, remaining dorsal margin unarmed; dactylus about 0.6 length of propodus, slender, gradually curving, conical, simple, subdistal portion with two minute notches on dorsal margin each marked by tuft of thick setae (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFD71FC52FC8004ED" box="[727,796,909,935]" captionStart="FIGURE 4" captionStartId="6.[151,250,1825,1850]" captionTargetBox="[184,1386,174,1792]" captionTargetId="figure@6.[175,1412,166,1805]" captionTargetPageId="6" captionText="FIGURE 4. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061:A—right second pereiopod, lateral view; B—right third pereiopod, lateral view; C—same, propodus and dactylus, lateral view; D—same, distal portion of propodus and dactylus, lateral view; E—right fourth pereiopod, lateral view; F—same, propodus and dactylus, lateral view; G—same, distal portion of propodus and dactylus, lateral view; H—right fifth pereiopod (dactylus missing, indicated by broken line), lateral view; I—same, propodus (dactylus missing, indicated by broken line), lateral view; J—left fifth pereiopod, distal portion of propodus and dactylus, lateral view." httpUri="https://zenodo.org/record/3346383/files/figure.png" pageId="2" pageNumber="89">Fig. 4</figureCitation>
|
||
B–D). Fourth pereiopod generally similar to third, more slender; ischium with two spiniform setae on ventrolateral surface, inserted in deep pits; merus about 12 times as long as wide, unarmed; carpus slightly less than half-length of merus, somewhat more slender than merus, unarmed; propodus with four spaced small spiniform setae on ventral margin in addition to one pair of longer spiniform setae near dactylar base, distal half of dorsal margin with row of five long stout spiniform setae, most-distal above dactylar base; dactylus about 0.5 length of propodus, slender, gradually curving, conical, simple, subdistal portion with two minute dorsal notches each with setal tuft (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFD00FBBAFD740335" box="[678,744,1125,1151]" captionStart="FIGURE 4" captionStartId="6.[151,250,1825,1850]" captionTargetBox="[184,1386,174,1792]" captionTargetId="figure@6.[175,1412,166,1805]" captionTargetPageId="6" captionText="FIGURE 4. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061:A—right second pereiopod, lateral view; B—right third pereiopod, lateral view; C—same, propodus and dactylus, lateral view; D—same, distal portion of propodus and dactylus, lateral view; E—right fourth pereiopod, lateral view; F—same, propodus and dactylus, lateral view; G—same, distal portion of propodus and dactylus, lateral view; H—right fifth pereiopod (dactylus missing, indicated by broken line), lateral view; I—same, propodus (dactylus missing, indicated by broken line), lateral view; J—left fifth pereiopod, distal portion of propodus and dactylus, lateral view." httpUri="https://zenodo.org/record/3346383/files/figure.png" pageId="2" pageNumber="89">Fig. 4</figureCitation>
|
||
E–G). Fifth pereiopod as slender as fourth pereiopod; ischium with two spiniform setae on ventrolateral surface, inserted in deep pits; merus about 12 times as long as wide, unarmed; carpus slightly less than half-length of merus, somewhat more slender than merus, unarmed; propodus with two spaced small spiniform setae on proximal half of ventral margin and 10 short rows of serrulate setae forming cleaning brush on distal half of ventrolateral surface; dactylus (broken on the right side in the
|
||
<typeStatus id="E76628F9FFBCFFFAFB1EFB2AFA810245" box="[1208,1309,1269,1295]" pageId="2" pageNumber="89" type="holotype">holotype</typeStatus>
|
||
, present on the left side) slightly less than 0.5 length of propodus, slender, gradually curving, conical, simple, subdistal portion with two minute dorsal notches each with setal tuft (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFD47FAE2FCB9021D" box="[737,805,1341,1367]" captionStart="FIGURE 4" captionStartId="6.[151,250,1825,1850]" captionTargetBox="[184,1386,174,1792]" captionTargetId="figure@6.[175,1412,166,1805]" captionTargetPageId="6" captionText="FIGURE 4. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061:A—right second pereiopod, lateral view; B—right third pereiopod, lateral view; C—same, propodus and dactylus, lateral view; D—same, distal portion of propodus and dactylus, lateral view; E—right fourth pereiopod, lateral view; F—same, propodus and dactylus, lateral view; G—same, distal portion of propodus and dactylus, lateral view; H—right fifth pereiopod (dactylus missing, indicated by broken line), lateral view; I—same, propodus (dactylus missing, indicated by broken line), lateral view; J—left fifth pereiopod, distal portion of propodus and dactylus, lateral view." httpUri="https://zenodo.org/record/3346383/files/figure.png" pageId="2" pageNumber="89">Fig. 4</figureCitation>
|
||
H–J).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61FABEFA060141" blockId="2.[151,1437,152,2015]" pageId="2" pageNumber="89">
|
||
Male first pleopod with small elongate endopod, latter fringed with long setae and some stouter and shorter setae on anterior margin (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFE15FA5AFDB002D5" box="[435,556,1413,1439]" captionStart="FIGURE 2" captionStartId="4.[151,250,1442,1467]" captionTargetBox="[162,1428,193,1414]" captionTargetId="figure@4.[151,1436,181,1422]" captionTargetPageId="4" captionText="FIGURE 2. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right third maxilliped, lateral view; B—same, apex of ultimate article, dorsal (left) and mesial (right) views; C—left first pleopod, lateral view; D—same, endopod; E—left second pleopod, lateral view; F—same, appendix masculina and appendix interna." httpUri="https://zenodo.org/record/3346379/files/figure.png" pageId="2" pageNumber="89">Fig. 2C, D</figureCitation>
|
||
). Male second pleopod with appendix masculina slightly shorter than appendix interna, with stiff setae on apex and subapical area (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFD74FA76FCD80289" box="[722,836,1449,1475]" captionStart="FIGURE 2" captionStartId="4.[151,250,1442,1467]" captionTargetBox="[162,1428,193,1414]" captionTargetId="figure@4.[151,1436,181,1422]" captionTargetPageId="4" captionText="FIGURE 2. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right third maxilliped, lateral view; B—same, apex of ultimate article, dorsal (left) and mesial (right) views; C—left first pleopod, lateral view; D—same, endopod; E—left second pleopod, lateral view; F—same, appendix masculina and appendix interna." httpUri="https://zenodo.org/record/3346379/files/figure.png" pageId="2" pageNumber="89">Fig. 2E, F</figureCitation>
|
||
). Uropod with lateral lobe of protopod ending in blunt tooth; exopod broadly ovoid, with strong distolateral tooth; diaeresis strongly sinuous, with subtriangular tooth adjacent to stout spiniform seta; endopod somewhat narrower than exopod, ovoid, without specific features (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFA98FA2EFA160141" box="[1342,1418,1521,1547]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="2" pageNumber="89">
|
||
Fig.
|
||
<date id="4C63B09BFFBCFFFAFAD4FA2EFA160141" box="[1394,1418,1521,1547]" pageId="2" pageNumber="89">1I</date>
|
||
</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61F9CAFBAF013D" blockId="2.[151,1437,152,2015]" pageId="2" pageNumber="89">Gill formula typical for genus: five pleurobranchs above first to fifth pereiopods; one arthrobranch at third maxilliped; no podobranch; mastigobranchs (strap-like epipods) on coxae of third maxilliped and first to fourth pereiopods; setobranchs (setiferous tubercles) on coxae of first to fifth pereiopods.</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61F95FFCB9004D" blockId="2.[151,1437,152,2015]" pageId="2" pageNumber="89">
|
||
<emphasis id="0AA94A49FFBCFFFAFF61F95FFE8701D1" bold="true" box="[199,283,1664,1691]" pageId="2" pageNumber="89">Colour</emphasis>
|
||
. Most of body, tail fan and chelipeds semitransparent, uniformly speckled with fairly large, bright red chromatophores; chelae more intense red distally, with conspicuous whitish area on distal fingers, finger tips semitransparent, dark yellow-amber; walking legs with some red chromatophores proximally, mostly colourless distally; antennal flagella whitish; eyes with dark cornea (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFD1BF932FC84004D" box="[701,792,1772,1799]" captionStart="FIGURE 5" captionStartId="7.[151,250,1279,1304]" captionTargetBox="[151,1436,181,1260]" captionTargetId="figure@7.[151,1436,181,1260]" captionTargetPageId="7" captionText="FIGURE 5. A—Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061, living shrimp photographed in an aquarium soon after the collection [photograph by Patrick Louisy]; B, C—Habitat of Nennalpheus gabonensis sp. nov., silted reef with gorgonians, sponges and massive corals [photographs by Peter Wirtz]." httpUri="https://zenodo.org/record/3346385/files/figure.png" pageId="2" pageNumber="89">Fig. 5A</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61F8CFFB170061" blockId="2.[151,1437,152,2015]" box="[199,1163,1808,1835]" pageId="2" pageNumber="89">
|
||
<emphasis id="0AA94A49FFBCFFFAFF61F8CFFEC50061" bold="true" box="[199,345,1808,1835]" pageId="2" pageNumber="89">Distribution</emphasis>
|
||
. Eastern Atlantic: presently known only from the
|
||
<typeStatus id="E76628F9FFBCFFFAFC2CF8CEFC260061" box="[906,954,1809,1835]" pageId="2" pageNumber="89">type</typeStatus>
|
||
locality in
|
||
<collectingCountry id="40CAD6CBFFBCFFFAFB9FF8CEFB1B0061" box="[1081,1159,1809,1835]" name="Gabon" pageId="2" pageNumber="89">Gabon</collectingCountry>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61F8EBFBE100F1" blockId="2.[151,1437,152,2015]" pageId="2" pageNumber="89">
|
||
<emphasis id="0AA94A49FFBCFFFAFF61F8EBFEBF0005" bold="true" box="[199,291,1844,1871]" pageId="2" pageNumber="89">Habitat</emphasis>
|
||
. The
|
||
<typeStatus id="E76628F9FFBCFFFAFEC2F8EAFE5A0005" box="[356,454,1845,1871]" pageId="2" pageNumber="89" type="holotype">holotype</typeStatus>
|
||
specimen was collected on a rocky reef on top of a small seamount off Cap Esterias, at about
|
||
<specimenCount id="2EDB5DD2FFBCFFFAFF7BF886FE810039" box="[221,285,1881,1907]" pageId="2" pageNumber="89" type="generic">
|
||
<quantity id="FF253BBEFFBCFFFAFF7BF886FE850039" box="[221,281,1881,1907]" metricMagnitude="1" metricUnit="m" metricValue="1.1" pageId="2" pageNumber="89" unit="m" value="11.0">11 m</quantity>
|
||
.
|
||
</specimenCount>
|
||
Underwater photographs supplied by Dr. P. Wirtz show a heavily silted rocky reef with mediocre visibility (organic and non-organic matter in suspension), with rocky and sandy bottom with some algae, flat corals, sponges and gorgonians (
|
||
<figureCitation id="A0E68ADEFFBCFFFAFE15F87EFDB000F1" box="[435,556,1952,1979]" captionStart="FIGURE 5" captionStartId="7.[151,250,1279,1304]" captionTargetBox="[151,1436,181,1260]" captionTargetId="figure@7.[151,1436,181,1260]" captionTargetPageId="7" captionText="FIGURE 5. A—Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061, living shrimp photographed in an aquarium soon after the collection [photograph by Patrick Louisy]; B, C—Habitat of Nennalpheus gabonensis sp. nov., silted reef with gorgonians, sponges and massive corals [photographs by Peter Wirtz]." httpUri="https://zenodo.org/record/3346385/files/figure.png" pageId="2" pageNumber="89">Fig. 5B, C</figureCitation>
|
||
). The shrimp was found dwelling under a large rock.
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBCFFFAFF61F81AFB4F0095" blockId="2.[151,1437,152,2015]" box="[199,1235,1989,2015]" pageId="2" pageNumber="89">
|
||
<emphasis id="0AA94A49FFBCFFFAFF61F81AFED40095" bold="true" box="[199,328,1989,2015]" pageId="2" pageNumber="89">Etymology</emphasis>
|
||
. After the country of the
|
||
<typeStatus id="E76628F9FFBCFFFAFDC2F81AFD080095" box="[612,660,1989,2015]" pageId="2" pageNumber="89">type</typeStatus>
|
||
locality, the
|
||
<collectingCountry id="40CAD6CBFFBCFFFAFC83F81AFB9F0095" box="[805,1027,1989,2015]" name="Gabon" pageId="2" pageNumber="89">Gabonese Republic</collectingCountry>
|
||
; used as adjective.
|
||
</paragraph>
|
||
<caption id="6CA2C6D3FFBDFFFBFF31F89BFB5B00A7" httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="3" pageNumber="90" startId="3.[151,250,1860,1885]" targetBox="[197,1411,198,1819]" targetPageId="3">
|
||
<paragraph id="3862965BFFBDFFFBFF31F89BFB5B00A7" blockId="3.[151,1437,1860,2029]" pageId="3" pageNumber="90">
|
||
<emphasis id="0AA94A49FFBDFFFBFF31F89BFE850017" bold="true" box="[151,281,1860,1885]" pageId="3" pageNumber="90">FIGURE 1.</emphasis>
|
||
<taxonomicName id="FFDDEDD8FFBDFFFBFE80F89AFDB40017" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[294,552,1861,1885]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="3" pageNumber="90" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBDFFFBFE80F89AFDB40017" box="[294,552,1861,1885]" italics="true" pageId="3" pageNumber="90">Nennalpheus gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBDFFFBFD93F89AFD100017" box="[565,652,1861,1885]" pageId="3" pageNumber="90" rank="species">
|
||
<emphasis id="0AA94A49FFBDFFFBFD93F89AFD100017" bold="true" box="[565,652,1861,1885]" pageId="3" pageNumber="90">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
, holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="6CA2C6D3FFBAFFFCFF31FA7DFED4016D" httpUri="https://zenodo.org/record/3346379/files/figure.png" pageId="4" pageNumber="91" startId="4.[151,250,1442,1467]" targetBox="[162,1428,193,1414]" targetPageId="4">
|
||
<paragraph id="3862965BFFBAFFFCFF31FA7DFED4016D" blockId="4.[151,1437,1442,1575]" pageId="4" pageNumber="91">
|
||
<emphasis id="0AA94A49FFBAFFFCFF31FA7DFE8502F1" bold="true" box="[151,281,1442,1467]" pageId="4" pageNumber="91">FIGURE 2.</emphasis>
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFE80FA7CFDB402F1" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[294,552,1443,1467]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBAFFFCFE80FA7CFDB402F1" box="[294,552,1443,1467]" italics="true" pageId="4" pageNumber="91">Nennalpheus gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBAFFFCFD93FA7CFD1002F1" box="[565,652,1443,1467]" pageId="4" pageNumber="91" rank="species">
|
||
<emphasis id="0AA94A49FFBAFFFCFD93FA7CFD1002F1" bold="true" box="[565,652,1443,1467]" pageId="4" pageNumber="91">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
, holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right third maxilliped, lateral view; B—same, apex of ultimate article, dorsal (left) and mesial (right) views; C—left first pleopod, lateral view; D—same, endopod; E—left second pleopod, lateral view; F—same, appendix masculina and appendix interna.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="3862965BFFBAFFFDFF61F98AFD220655" blockId="4.[151,1437,1621,2043]" lastBlockId="5.[151,1437,153,611]" lastPageId="5" lastPageNumber="92" pageId="4" pageNumber="91">
|
||
<emphasis id="0AA94A49FFBAFFFCFF61F98AFEA80125" bold="true" box="[199,308,1621,1647]" pageId="4" pageNumber="91">Remarks</emphasis>
|
||
.
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFEE4F98AFDC60125" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[322,602,1621,1647]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBAFFFCFEE4F98AFDC60125" box="[322,602,1621,1647]" italics="true" pageId="4" pageNumber="91">Nennalpheus gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBAFFFCFDC7F98AFD260125" box="[609,698,1621,1647]" pageId="4" pageNumber="91" rank="species">
|
||
<emphasis id="0AA94A49FFBAFFFCFDC7F98AFD260125" bold="true" box="[609,698,1621,1647]" pageId="4" pageNumber="91">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
is easily distinguishable from both
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFBEDF989FB5F0125" baseAuthorityName="De Man" baseAuthorityYear="1910" box="[1099,1219,1621,1647]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBAFFFCFBEDF989FB5F0125" box="[1099,1219,1621,1647]" italics="true" pageId="4" pageNumber="91">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
(see below) and
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFA25F989FEBA01D9" authorityName="Banner & Banner" authorityYear="1981" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="inarticulatus">
|
||
<emphasis id="0AA94A49FFBAFFFCFA25F989FEBA01D9" italics="true" pageId="4" pageNumber="91">N. inarticulatus</emphasis>
|
||
</taxonomicName>
|
||
by the different armature of the cheliped fingers and the presence of strong median processes on the pleonal sternites. In the new species, the dactylus and the pollex each possess a well-defined bulging tooth that is deeply excavated on its distal surface, in addition to two more proximal simple teeth (
|
||
<figureCitation id="A0E68ADEFFBAFFFCFBF3F91EFB370191" box="[1109,1195,1729,1755]" captionStart="FIGURE 3" captionStartId="5.[151,250,1903,1928]" captionTargetBox="[202,1382,640,1871]" captionTargetId="figure@5.[194,1393,633,1883]" captionTargetPageId="5" captionText="FIGURE 3. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right cheliped with fingers slightly opened, lateral view; B—same, mesial view; C—same, ischium, merus and carpus, lateral view; D—same, cheliped fingers closed, lateral view; E, F, G—same, cheliped fingers slightly opened, mesial (E), dorsomesial (F) and ventromesial (G) views." httpUri="https://zenodo.org/record/3346381/files/figure.png" pageId="4" pageNumber="91">Fig. 3E</figureCitation>
|
||
). In contrast, in
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFAC6F91DFF4701B5" baseAuthorityName="De Man" baseAuthorityYear="1910" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBAFFFCFAC6F91DFF4701B5" italics="true" pageId="4" pageNumber="91">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFEB7F939FE5C01B5" authorityName="Banner & Banner" authorityYear="1981" box="[273,448,1765,1791]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="inarticulatus">
|
||
<emphasis id="0AA94A49FFBAFFFCFEB7F939FE5C01B5" box="[273,448,1765,1791]" italics="true" pageId="4" pageNumber="91">N. inarticulatus</emphasis>
|
||
</taxonomicName>
|
||
, the pollex possesses a shallow depression opposed to a very shallow bulge—rather than a distally excavated tooth—on the dactylus, in addition to five or so simple teeth on the proximal half of the finger cutting edges (
|
||
<figureCitation id="A0E68ADEFFBAFFFCFE9DF8F2FE2F000D" box="[315,435,1837,1863]" captionStart="FIGURE 7" captionStartId="10.[151,250,1826,1851]" captionTargetBox="[183,1409,179,1794]" captionTargetId="figure@10.[167,1421,166,1806]" captionTargetPageId="10" captionText="FIGURE 7. Nennalpheus sibogae (De Man, 1910), ovigerous female (cl 8.2 mm) from Madang, Papua New Guinea, MNHN- IU-2014-6058:A—right cheliped with fingers closed, lateral view; B—same, mesial view; C—same, carpus and chela with fingers opened, mesial view; D—same, carpus, lateral view; E—same, cheliped fingers opened, ventromesial view; F—right second pereiopod, lateral view; G—right third pereiopod (dactylus tip missing, indicated by broken line), lateral view; H—same, propodus and dactylus (tip missing, indicated by broken line), lateral view; I—right fourth pereiopod, lateral view; J—right fifth pereiopod, lateral view; K—same, propodus and dactylus, lateral view; L—same, dactylus, lateral view." httpUri="https://zenodo.org/record/3346389/files/figure.png" pageId="4" pageNumber="91">Fig. 7C, E</figureCitation>
|
||
; see also
|
||
<bibRefCitation id="5C4CEBAAFFBAFFFCFDB8F8F2FCBB000D" author="Banner, A. H. & Banner, D. M." box="[542,807,1837,1863]" pageId="4" pageNumber="91" pagination="217 - 235" refId="ref7062" refString="Banner, A. H. & Banner, D. M. (1981) Decapod Crustacea: Alpheidae. In: Resultats des campagnes MUSORSTOM, I: Philippines (18 - 28 mars 1976). Memoires de l'ORSTOM, 91, 217 - 235." type="journal article" year="1981">Banner & Banner 1981</bibRefCitation>
|
||
: fig. 1f). In
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFC0AF8F1FBD7000D" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[940,1099,1837,1863]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBAFFFCFC0AF8F1FBD7000D" box="[940,1099,1837,1863]" italics="true" pageId="4" pageNumber="91">N. gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBAFFFCFBF4F8F2FB30000D" box="[1106,1196,1837,1863]" pageId="4" pageNumber="91" rank="species">
|
||
<emphasis id="0AA94A49FFBAFFFCFBF4F8F2FB30000D" bold="true" box="[1106,1196,1837,1863]" pageId="4" pageNumber="91">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
, each of the first five pleonal sternites is armed, at least in males, by a very strong median process; these processes are gradually diminishing in size from the first to the fifth (
|
||
<figureCitation id="A0E68ADEFFBAFFFCFD8AF8AAFD3A00C5" box="[556,678,1909,1935]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="4" pageNumber="91">Fig. 1C, D</figureCitation>
|
||
). Such processes are absent in both males and females of
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFA83F8A9FA0000C5" baseAuthorityName="De Man" baseAuthorityYear="1910" box="[1317,1436,1909,1935]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBAFFFCFA83F8A9FA0000C5" box="[1317,1436,1909,1935]" italics="true" pageId="4" pageNumber="91">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
(see below) and also in
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFE06F845FDCC00F9" authorityName="Banner & Banner" authorityYear="1981" box="[416,592,1945,1971]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="inarticulatus">
|
||
<emphasis id="0AA94A49FFBAFFFCFE06F845FDCC00F9" box="[416,592,1945,1971]" italics="true" pageId="4" pageNumber="91">N. inarticulatus</emphasis>
|
||
</taxonomicName>
|
||
, according to the very detailed description of the latter species provided by
|
||
<bibRefCitation id="5C4CEBAAFFBAFFFCFF31F862FE2F009D" author="Banner, A. H. & Banner, D. M." box="[151,435,1981,2007]" pageId="4" pageNumber="91" pagination="217 - 235" refId="ref7062" refString="Banner, A. H. & Banner, D. M. (1981) Decapod Crustacea: Alpheidae. In: Resultats des campagnes MUSORSTOM, I: Philippines (18 - 28 mars 1976). Memoires de l'ORSTOM, 91, 217 - 235." type="journal article" year="1981">Banner & Banner (1981)</bibRefCitation>
|
||
. Another diagnostic feature of
|
||
<taxonomicName id="FFDDEDD8FFBAFFFCFCABF861FC30009D" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[781,940,1981,2007]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="91" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBAFFFCFCABF861FC30009D" box="[781,940,1981,2007]" italics="true" pageId="4" pageNumber="91">N. gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBAFFFCFC15F862FB91009D" box="[947,1037,1981,2007]" pageId="4" pageNumber="91" rank="species">
|
||
<emphasis id="0AA94A49FFBAFFFCFC15F862FB91009D" bold="true" box="[947,1037,1981,2007]" pageId="4" pageNumber="91">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
that is absent in the two previously described congeners is the presence of spiniform setae on the dorsal surface of the propodus of the fourth pereiopod (
|
||
<figureCitation id="A0E68ADEFFBBFFFDFF06FF46FE8A07F9" box="[160,278,153,179]" captionStart="FIGURE 4" captionStartId="6.[151,250,1825,1850]" captionTargetBox="[184,1386,174,1792]" captionTargetId="figure@6.[175,1412,166,1805]" captionTargetPageId="6" captionText="FIGURE 4. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061:A—right second pereiopod, lateral view; B—right third pereiopod, lateral view; C—same, propodus and dactylus, lateral view; D—same, distal portion of propodus and dactylus, lateral view; E—right fourth pereiopod, lateral view; F—same, propodus and dactylus, lateral view; G—same, distal portion of propodus and dactylus, lateral view; H—right fifth pereiopod (dactylus missing, indicated by broken line), lateral view; I—same, propodus (dactylus missing, indicated by broken line), lateral view; J—left fifth pereiopod, distal portion of propodus and dactylus, lateral view." httpUri="https://zenodo.org/record/3346383/files/figure.png" pageId="5" pageNumber="92">Fig. 4F, G</figureCitation>
|
||
). The new species differs specifically from
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFD59FF45FCEB07F9" baseAuthorityName="De Man" baseAuthorityYear="1910" box="[767,887,153,179]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBBFFFDFD59FF45FCEB07F9" box="[767,887,153,179]" italics="true" pageId="5" pageNumber="92">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
by the presence of blunt orbital projections (
|
||
<figureCitation id="A0E68ADEFFBBFFFDFAC9FF46FF45079D" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="5" pageNumber="92">Fig. 1A, B</figureCitation>
|
||
) rather than distinct acute orbital teeth as in
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFD64FF61FCA4079D" baseAuthorityName="De Man" baseAuthorityYear="1910" box="[706,824,189,215]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBBFFFDFD64FF61FCA4079D" box="[706,824,189,215]" italics="true" pageId="5" pageNumber="92">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="A0E68ADEFFBBFFFDFCE1FF62FC22079D" box="[839,958,189,215]" captionStart="FIGURE 6" captionStartId="9.[151,250,1727,1752]" captionTargetBox="[227,1337,193,1682]" captionTargetId="figure@9.[222,1366,181,1702]" captionTargetPageId="9" captionText="FIGURE 6. Nennalpheus sibogae (De Man, 1910): ovigerous female (cl 8.2 mm) from Madang, Papua New Guinea, MNHN- IU-2014-6058 [A–L, O]; male (cl 5.5 mm) from Hansa Bay, Papua New Guinea, OUMNH.ZC.2003.11.0017 [M, N]:A—frontal region, dorsal view; B—same, lateral view; C—fifth and sixth pleonites, right lateral view; D—telson, dorsal view; E—same, posterior margin (plumose setae omitted); F—right mandible, mesial view; G—right maxillule, lateral view; H—right maxilla, lateral view; I—right first maxilliped, lateral view; J—right second maxiliped, lateral view; K—right third maxilliped, lateral view; L—same, apex of ultimate article, dorsomesial (left) and lateral (right) views; M—right second pleopod, lateral view; N—same, appendix masculina and appendix interna; O—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346387/files/figure.png" pageId="5" pageNumber="92">Fig. 6A, B</figureCitation>
|
||
), and from
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFB9AFF61FB77079D" authorityName="Banner & Banner" authorityYear="1981" box="[1084,1259,189,215]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="species" species="inarticulatus">
|
||
<emphasis id="0AA94A49FFBBFFFDFB9AFF61FB77079D" box="[1084,1259,189,215]" italics="true" pageId="5" pageNumber="92">N. inarticulatus</emphasis>
|
||
</taxonomicName>
|
||
by the presence of an articulated flap on the sixth pleonite (
|
||
<figureCitation id="A0E68ADEFFBBFFFDFDDDFF3EFD4C07B1" box="[635,720,225,251]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="5" pageNumber="92">Fig. 1E</figureCitation>
|
||
), which is absent in the latter species, as indeed indicated by its scientific name (
|
||
<bibRefCitation id="5C4CEBAAFFBBFFFDFEF6FEDAFDC60655" author="Banner, A. H. & Banner, D. M." box="[336,602,261,287]" pageId="5" pageNumber="92" pagination="217 - 235" refId="ref7062" refString="Banner, A. H. & Banner, D. M. (1981) Decapod Crustacea: Alpheidae. In: Resultats des campagnes MUSORSTOM, I: Philippines (18 - 28 mars 1976). Memoires de l'ORSTOM, 91, 217 - 235." type="journal article" year="1981">Banner & Banner 1981</bibRefCitation>
|
||
: fig. 1q).
|
||
</paragraph>
|
||
<paragraph id="3862965BFFBBFFFDFF61FEF6FDF10529" blockId="5.[151,1437,153,611]" pageId="5" pageNumber="92">
|
||
As mentioned above, the present description of
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFD55FEF5FC080609" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[755,916,297,323]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBBFFFDFD55FEF5FC080609" box="[755,916,297,323]" italics="true" pageId="5" pageNumber="92">N. gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBBFFFDFC38FEF6FC670609" box="[926,1019,297,323]" pageId="5" pageNumber="92" rank="species">
|
||
<emphasis id="0AA94A49FFBBFFFDFC38FEF6FC670609" bold="true" box="[926,1019,297,323]" pageId="5" pageNumber="92">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
significantly extends the previously known distribution range of the genus
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFDE9FE92FD7D062D" authorityName="in Banner & Banner" authorityYear="1981" box="[591,737,333,359]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="0AA94A49FFBBFFFDFDE9FE92FD7D062D" box="[591,737,333,359]" italics="true" pageId="5" pageNumber="92">Nennalpheus</emphasis>
|
||
</taxonomicName>
|
||
from the Indo-West Pacific (with new material of
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFA85FE91FA00062D" baseAuthorityName="De Man" baseAuthorityYear="1910" box="[1315,1436,333,359]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="species" species="sibogae">
|
||
<emphasis id="0AA94A49FFBBFFFDFA85FE91FA00062D" box="[1315,1436,333,359]" italics="true" pageId="5" pageNumber="92">N. sibogae</emphasis>
|
||
</taxonomicName>
|
||
form the southwestern Indian Ocean, see below) to the eastern Atlantic Ocean. In addition, the two “novel” morphological characters of
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFE17FE49FDCD06E5" authority="Anker, 2019" authorityName="Anker" authorityYear="2019" box="[433,593,405,431]" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="species" species="gabonensis" status="sp. nov.">
|
||
<emphasis id="0AA94A49FFBBFFFDFE17FE49FDCD06E5" box="[433,593,405,431]" italics="true" pageId="5" pageNumber="92">N. gabonensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="119AF732FFBBFFFDFDFCFE4AFD2906E5" box="[602,693,405,431]" pageId="5" pageNumber="92" rank="species">
|
||
<emphasis id="0AA94A49FFBBFFFDFDFCFE4AFD2906E5" bold="true" box="[602,693,405,431]" pageId="5" pageNumber="92">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
that should be added to the generic diagnosis of
|
||
<taxonomicName id="FFDDEDD8FFBBFFFDFB4DFE4AFE2C0699" authority="in Banner & Banner (1981)" authorityName="in Banner & Banner" authorityYear="1981" class="Malacostraca" family="Alpheidae" genus="Nennalpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="92" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="0AA94A49FFBBFFFDFB4DFE4AFAE106E5" box="[1259,1405,405,431]" italics="true" pageId="5" pageNumber="92">Nennalpheus</emphasis>
|
||
in
|
||
<bibRefCitation id="5C4CEBAAFFBBFFFDFF31FE66FE2C0699" author="Banner, A. H. & Banner, D. M." box="[151,432,441,467]" pageId="5" pageNumber="92" pagination="217 - 235" refId="ref7062" refString="Banner, A. H. & Banner, D. M. (1981) Decapod Crustacea: Alpheidae. In: Resultats des campagnes MUSORSTOM, I: Philippines (18 - 28 mars 1976). Memoires de l'ORSTOM, 91, 217 - 235." type="journal article" year="1981">Banner & Banner (1981)</bibRefCitation>
|
||
</taxonomicName>
|
||
are: (1) the pleonal sternites unarmed or armed with strong median processes (at least in males, condition in females presently unknown) (
|
||
<figureCitation id="A0E68ADEFFBBFFFDFD62FE02FCA306BD" box="[708,831,477,503]" captionStart="FIGURE 1" captionStartId="3.[151,250,1860,1885]" captionTargetBox="[197,1411,198,1819]" captionTargetId="figure@3.[154,1434,181,1835]" captionTargetPageId="3" captionText="FIGURE 1. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—frontal region, dorsal view; B—same, lateral view; C—posterior portion of cephalothorax and first three pleonites (left first and second pleopods removed), left ventrolateral view; D—median processes on first five (from left to right) pleonal sternites, left lateral view; E—fifth and sixth pleonites, right lateral view; F—telson, dorsal view; G—same, posterior margin (plumose setae omitted); H—left antennular flagellum, mesial view; I—right uropod, dorsal view." httpUri="https://zenodo.org/record/3346377/files/figure.png" pageId="5" pageNumber="92">Fig. 1C, D</figureCitation>
|
||
), and (2) the armature of the cheliped fingers consisting either of a abroad shallow bulge on the dactylus opposed to a fairly deep depression (fossa) on the pollex and five additional teeth on proximal half (
|
||
<figureCitation id="A0E68ADEFFBBFFFDFDEDFDFAFD5F0575" box="[587,707,549,575]" captionStart="FIGURE 7" captionStartId="10.[151,250,1826,1851]" captionTargetBox="[183,1409,179,1794]" captionTargetId="figure@10.[167,1421,166,1806]" captionTargetPageId="10" captionText="FIGURE 7. Nennalpheus sibogae (De Man, 1910), ovigerous female (cl 8.2 mm) from Madang, Papua New Guinea, MNHN- IU-2014-6058:A—right cheliped with fingers closed, lateral view; B—same, mesial view; C—same, carpus and chela with fingers opened, mesial view; D—same, carpus, lateral view; E—same, cheliped fingers opened, ventromesial view; F—right second pereiopod, lateral view; G—right third pereiopod (dactylus tip missing, indicated by broken line), lateral view; H—same, propodus and dactylus (tip missing, indicated by broken line), lateral view; I—right fourth pereiopod, lateral view; J—right fifth pereiopod, lateral view; K—same, propodus and dactylus, lateral view; L—same, dactylus, lateral view." httpUri="https://zenodo.org/record/3346389/files/figure.png" pageId="5" pageNumber="92">Fig. 7C, E</figureCitation>
|
||
), or two stout opposing tooth-like bulges, each deeply excavated distally, and two proximal teeth (
|
||
<figureCitation id="A0E68ADEFFBBFFFDFDAEFD96FDFC0529" box="[520,608,585,611]" captionStart="FIGURE 3" captionStartId="5.[151,250,1903,1928]" captionTargetBox="[202,1382,640,1871]" captionTargetId="figure@5.[194,1393,633,1883]" captionTargetPageId="5" captionText="FIGURE 3. Nennalpheus gabonensis sp. nov., holotype, male (cl 8.4 mm) from Cape Esterias, Gabon, OUMNH.ZC. 2018.01.061: A—right cheliped with fingers slightly opened, lateral view; B—same, mesial view; C—same, ischium, merus and carpus, lateral view; D—same, cheliped fingers closed, lateral view; E, F, G—same, cheliped fingers slightly opened, mesial (E), dorsomesial (F) and ventromesial (G) views." httpUri="https://zenodo.org/record/3346381/files/figure.png" pageId="5" pageNumber="92">Fig. 3B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |