142 lines
17 KiB
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142 lines
17 KiB
XML
<document id="58BCDBD323E3440C6FA2E38BE35D0727" ID-CLB-Dataset="26970" ID-DOI="10.11646/zootaxa.4590.1.8" ID-GBIF-Dataset="5ae498c8-8199-4227-a5df-09ae40face89" ID-ISSN="1175-5326" ID-Zenodo-Dep="2651588" ID-ZooBank="68AA0AEC-969C-49F7-A8D1-99D96A905471" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1556226197898" checkinUser="plazi" docAuthor="Gill, Anthony C., Bogorodsky, Sergey V. & Mal, Ahmad O." docDate="2019" docId="1F20FB335604FF98FF1AF88B73C251E4" docLanguage="en" docName="zootaxa.4590.1.8.pdf" docOrigin="Zootaxa 4590 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Gymnoxenisthmus Gill, Bogorodsky & Mal 2014" docType="treatment" docVersion="10" lastPageNumber="178" masterDocId="E319834B5604FF99FF8DFFF1715D5329" masterDocTitle="Description of a second species of Gymnoxenisthmus from the Red Sea (Teleostei: Gobioidei: Xenisthmidae)" masterLastPageNumber="183" masterPageNumber="177" pageNumber="177" updateTime="1698723851815" updateUser="ExternalLinkService">
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<mods:title id="02A12F7D4B9DD8161596669AEEF217D6">Description of a second species of Gymnoxenisthmus from the Red Sea (Teleostei: Gobioidei: Xenisthmidae)</mods:title>
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<mods:namePart id="CCCBED75BE2EE56DECCF3481D223A4B6">Gill, Anthony C.</mods:namePart>
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<mods:namePart id="44EC7276FD5B7277A37447E81A6590B5">Bogorodsky, Sergey V.</mods:namePart>
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<mods:namePart id="40E57C618DF798A32C7AF2E2FDE5E2C2">Mal, Ahmad O.</mods:namePart>
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<mods:typeOfResource id="00F237234BFD5E6B70FC11870D4D4C87">text</mods:typeOfResource>
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<mods:title id="469E64F209DC5E0AB548D4D394AAF677">Zootaxa</mods:title>
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<mods:date id="7A9EBDDD2671F1F370228333BC80C507">2019</mods:date>
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<mods:number id="F6F5E3611DDC74E5953CD4327C3380AF">2019-04-24</mods:number>
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<treatment id="1F20FB335604FF98FF1AF88B73C251E4" ID-DOI="http://doi.org/10.5281/zenodo.3512647" ID-GBIF-Taxon="156844030" ID-Zenodo-Dep="3512647" LSID="urn:lsid:plazi:treatment:1F20FB335604FF98FF1AF88B73C251E4" httpUri="http://treatment.plazi.org/id/1F20FB335604FF98FF1AF88B73C251E4" lastPageId="1" lastPageNumber="178" pageId="0" pageNumber="177">
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<subSubSection id="DF9319AE5604FF99FF1AF88B73AA54BC" box="[151,759,1914,1941]" pageId="0" pageNumber="177" type="nomenclature">
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<paragraph id="97364A255604FF99FF1AF88B73AA54BC" blockId="0.[151,759,1914,1941]" box="[151,759,1914,1941]" pageId="0" pageNumber="177">
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<heading id="CC7EFD495604FF99FF1AF88B73AA54BC" bold="true" box="[151,759,1914,1941]" fontSize="11" level="1" pageId="0" pageNumber="177" reason="1">
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<taxonomicName id="508931A65604FF99FF1AF88B73AA54BC" ID-CoL="4RYL" authority="Gill, Bogorodsky & Mal, 2014" authorityName="Gill, Bogorodsky & Mal" authorityYear="2014" box="[151,759,1914,1941]" class="Actinopterygii" family="Xenisthmidae" genus="Gymnoxenisthmus" kingdom="Animalia" order="Perciformes" pageId="0" pageNumber="177" phylum="Chordata" rank="genus">
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<emphasis id="A5FD96375604FF99FF1AF88B73AA54BC" bold="true" box="[151,759,1914,1941]" pageId="0" pageNumber="177">
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<emphasis id="A5FD96375604FF99FF1AF88B702454BD" bold="true" box="[151,377,1914,1940]" italics="true" pageId="0" pageNumber="177">Gymnoxenisthmus</emphasis>
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<bibRefCitation id="F31837D45604FF99FE0DF88A73AA54BC" author="Gill, A. C. & Bogorodsky, S. V. & Mal, A. O." box="[384,759,1915,1941]" pageId="0" pageNumber="177" pagination="491 - 495" refId="ref2914" refString="Gill, A. C., Bogorodsky, S. V. & Mal, A. O. (2014) Gymnoxenisthmus tigrellus, new genus and species of gobioid fish from the Red Sea (Gobioidei: Xenisthmidae). Zootaxa, 3755 (5), 491 - 495. https: // doi. org / 10.11646 / zootaxa. 3755.5.9" type="journal article" year="2014">Gill, Bogorodsky & Mal, 2014</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="DF9319AE5604FF99FF1AF830706054DF" pageId="0" pageNumber="177" type="reference_group">
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<paragraph id="97364A255604FF99FF1AF830706054DF" blockId="0.[151,1435,1985,2038]" pageId="0" pageNumber="177">
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<treatmentCitationGroup id="B7996D0B5604FF99FF1AF830706054DF" pageId="0" pageNumber="177">
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<taxonomicName id="508931A65604FF99FF1AF830737254FE" ID-CoL="4RYL" authority="Gill et al., 2014: 492" authorityName="Gill" authorityPageNumber="492" authorityYear="2014" box="[151,559,1985,2007]" class="Actinopterygii" family="Xenisthmidae" genus="Gymnoxenisthmus" kingdom="Animalia" order="Perciformes" pageId="0" pageNumber="177" phylum="Chordata" rank="genus">
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<emphasis id="A5FD96375604FF99FF1AF830700C54FE" box="[151,337,1985,2007]" italics="true" pageId="0" pageNumber="177">Gymnoxenisthmus</emphasis>
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<treatmentCitation id="16286C345604FF99FED5F830737254FE" ID-DOI="http://doi.org/10.5281/zenodo.5671203" ID-Zenodo-Dep="5671203" author="Gill, A. C. & Bogorodsky, S. V. & Mal, A. O." box="[344,559,1985,2007]" httpUri="http://treatment.plazi.org/id/482B87B8FFB9FFE011CFFF2A7BBFFDDA" page="492" pageId="0" pageNumber="177" year="2014">
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<bibRefCitation id="F31837D45604FF99FED5F83070A254FE" author="Gill, A. C. & Bogorodsky, S. V. & Mal, A. O." box="[344,511,1985,2007]" pageId="0" pageNumber="177" pagination="491 - 495" refId="ref2914" refString="Gill, A. C., Bogorodsky, S. V. & Mal, A. O. (2014) Gymnoxenisthmus tigrellus, new genus and species of gobioid fish from the Red Sea (Gobioidei: Xenisthmidae). Zootaxa, 3755 (5), 491 - 495. https: // doi. org / 10.11646 / zootaxa. 3755.5.9" type="journal article" year="2014">
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Gill
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<emphasis id="A5FD96375604FF99FE0BF83370E654FE" box="[390,443,1985,2007]" italics="true" pageId="0" pageNumber="177">et al.</emphasis>
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, 2014
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</bibRefCitation>
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: 492
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</treatmentCitation>
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</taxonomicName>
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(
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<typeStatus id="4832F4875604FF99FDB0F830733754FE" box="[573,618,1985,2007]" pageId="0" pageNumber="177">type</typeStatus>
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species
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<taxonomicName id="508931A65604FF99FD4FF833752454FE" ID-CoL="3HVPH" authority="Gill, Bogorodsky & Mal, 2014" authorityName="Gill, Bogorodsky & Mal" authorityYear="2014" box="[706,1145,1985,2007]" class="Actinopterygii" family="Xenisthmidae" genus="Gymnoxenisthmus" kingdom="Animalia" order="Perciformes" pageId="0" pageNumber="177" phylum="Chordata" rank="species" species="tigrellus">
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<emphasis id="A5FD96375604FF99FD4FF833726E54FE" box="[706,819,1985,2007]" italics="true" pageId="0" pageNumber="177">G. tigrellus</emphasis>
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<bibRefCitation id="F31837D45604FF99FCB7F830752454FE" author="Gill, A. C. & Bogorodsky, S. V. & Mal, A. O." box="[826,1145,1985,2007]" pageId="0" pageNumber="177" pagination="491 - 495" refId="ref2914" refString="Gill, A. C., Bogorodsky, S. V. & Mal, A. O. (2014) Gymnoxenisthmus tigrellus, new genus and species of gobioid fish from the Red Sea (Gobioidei: Xenisthmidae). Zootaxa, 3755 (5), 491 - 495. https: // doi. org / 10.11646 / zootaxa. 3755.5.9" type="journal article" year="2014">Gill, Bogorodsky & Mal, 2014</bibRefCitation>
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</taxonomicName>
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, by original designation and monotypy).
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection id="DF9319AE5605FF98FF1AFF66759853D1" pageId="1" pageNumber="178" type="diagnosis">
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<paragraph id="97364A255605FF98FF1AFF66759853D1" blockId="1.[151,1436,151,717]" pageId="1" pageNumber="178">
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<emphasis id="A5FD96375605FF98FF1AFF66704C5399" bold="true" box="[151,273,151,176]" pageId="1" pageNumber="178">Diagnosis.</emphasis>
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The following combination of characters distinguishes
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<taxonomicName id="508931A65605FF98FC3BFF6675D95399" box="[950,1156,151,176]" class="Actinopterygii" family="Xenisthmidae" genus="Gymnoxenisthmus" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">
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<emphasis id="A5FD96375605FF98FC3BFF6675D95399" box="[950,1156,151,176]" italics="true" pageId="1" pageNumber="178">Gymnoxenisthmus</emphasis>
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</taxonomicName>
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from other xenisthmid genera: head pores absent; scales lacking; first dorsal fin with five spines; second dorsal-fin rays I,13; most segmented dorsal- and anal-fin rays branched; pelvic fin with a spine and five unbranched rays.
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</paragraph>
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</subSubSection>
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<subSubSection id="DF9319AE5605FF98FF4AFEF573C251E4" pageId="1" pageNumber="178" type="discussion">
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<paragraph id="97364A255605FF98FF4AFEF573C251E4" blockId="1.[151,1436,151,717]" pageId="1" pageNumber="178">
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<emphasis id="A5FD96375605FF98FF4AFEF570665234" bold="true" box="[199,315,260,285]" pageId="1" pageNumber="178">Remarks.</emphasis>
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The discovery of
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<taxonomicName id="508931A65605FF98FD9CFEF572345234" authority="Gill & Bogorodsky & Mal, 2019" authorityName="Gill & Bogorodsky & Mal" authorityYear="2019" box="[529,873,260,285]" class="Actinopterygii" family="Xenisthmidae" genus="Gymnoxenisthmus" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="species" species="flavicinctus" status="sp. nov.">
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<emphasis id="A5FD96375605FF98FD9CFEF572345234" box="[529,873,260,285]" italics="true" pageId="1" pageNumber="178">Gymnoxenisthmus flavicinctus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="BECE2B4C5605FF98FCFEFEF472A05234" box="[883,1021,260,285]" pageId="1" pageNumber="178" rank="species">new species</taxonomicNameLabel>
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necessitates revision of the original diagnosis for the genus. Previously we listed the presence of branched pectoral-fin rays as a diagnostic character of the genus, but the new species has entirely unbranched pectoral-fin rays. Entirely unbranched pectoral-fin rays is one of several characters that we proposed as synapomorphies of a clade consisting of
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<taxonomicName id="508931A65605FF98FB19FE8074CA52A1" authority="Springer (1983)" authorityName="Springer" authorityYear="1983" box="[1172,1431,367,392]" class="Actinopterygii" family="Xenisthmidae" genus="Tyson" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">
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<emphasis id="A5FD96375605FF98FB19FE80758E52A1" box="[1172,1235,369,392]" italics="true" pageId="1" pageNumber="178">Tyson</emphasis>
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<bibRefCitation id="F31837D45605FF98FB52FE9E74CA52A1" author="Springer, V. G." box="[1247,1431,367,392]" pageId="1" pageNumber="178" pagination="1 - 40" refId="ref3374" refString="Springer, V. G. (1983) Tyson belos, new genus and species of western Pacific fish (Gobiidae, Xenisthminae), with discussions of gobioid osteology and classification. Smithsonian Contributions to Zoology, 390, 1 - 40. https: // doi. org / 10.5479 / si. 00810282.390" type="journal article" year="1983">Springer (1983)</bibRefCitation>
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</taxonomicName>
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,
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<taxonomicName id="508931A65605FF98FF1AFE6470E85285" authority="Springer (1988)" authorityName="Springer" authorityYear="1988" box="[151,437,404,429]" class="Actinopterygii" family="Xenisthmidae" genus="Rotuma" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">
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<emphasis id="A5FD96375605FF98FF1AFE6471B35285" box="[151,238,405,428]" italics="true" pageId="1" pageNumber="178">Rotuma</emphasis>
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<bibRefCitation id="F31837D45605FF98FF71FE6570E85285" author="Springer, V. G." box="[252,437,404,429]" pageId="1" pageNumber="178" pagination="530 - 539" refId="ref3431" refString="Springer, V. G. (1988) Rotuma lewisi, new genus and species of fish from the southwest Pacific (Gobioidei, Xenisthmidae). Proceedings of the Biological Society of Washington, 101, 530 - 539." type="journal article" year="1988">Springer (1988)</bibRefCitation>
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</taxonomicName>
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and
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<taxonomicName id="508931A65605FF98FE74FE6575165284" authority="Schultz in Schultz et al. (1966)" authorityName="Schultz in Schultz" authorityYear="1966" box="[505,1099,404,429]" class="Actinopterygii" family="Xenisthmidae" genus="Allomicrodesmus" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">
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<emphasis id="A5FD96375605FF98FE74FE6573E75284" box="[505,698,404,429]" italics="true" pageId="1" pageNumber="178">Allomicrodesmus</emphasis>
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Schultz in
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<bibRefCitation id="F31837D45605FF98FCC3FE6575165284" author="Schultz, L. P. & Woods, L. P. & Lachner, E. A." box="[846,1099,404,429]" pageId="1" pageNumber="178" pagination="1 - 176" refId="ref3263" refString="Schultz, L. P., Woods, L. P. & Lachner, E. A. (1966) Fishes of the Marshall and Marianas islands. Vol. 3. Families Kraemeriidae through Antennariidae. Bulletin of the United States National Museum, 202 (3), 1 - 176." type="journal article" year="1966">
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Schultz
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<emphasis id="A5FD96375605FF98FC3DFE6472B25284" box="[944,1007,404,429]" italics="true" pageId="1" pageNumber="178">et al.</emphasis>
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(1966)
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</bibRefCitation>
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</taxonomicName>
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. The new species lacks the remaining proposed synapomorphies of this clade (all segmented second dorsal-fin rays unbranched; all segmented anal-fin rays unbranched; ceratohyals represented by a single ossification). This distribution of derived characters suggests that the new species should be placed in its own genus as sister-group to the
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<emphasis id="A5FD96375605FF98FB3AFDF070055114" italics="true" pageId="1" pageNumber="178">
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<taxonomicName id="508931A65605FF98FB3AFDF075A55131" authorityName="Springer" authorityYear="1983" box="[1207,1272,513,536]" class="Actinopterygii" family="Xenisthmidae" genus="Tyson" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">Tyson</taxonomicName>
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+
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<taxonomicName id="508931A65605FF98FAA8FDF074215131" authorityName="Springer" authorityYear="1988" box="[1317,1404,513,536]" class="Actinopterygii" family="Xenisthmidae" genus="Rotuma" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">Rotuma</taxonomicName>
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+
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<taxonomicName id="508931A65605FF98FF1AFDD570055114" box="[151,344,548,573]" class="Actinopterygii" family="Xenisthmidae" genus="Allomicrodesmus" kingdom="Animalia" order="Perciformes" pageId="1" pageNumber="178" phylum="Chordata" rank="genus">Allomicrodesmus</taxonomicName>
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</emphasis>
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clade. However, the general similarity in form and coloration suggests the two species are closely related. We are also reluctant to erect additional monotypic genera when the osteology of neither species has been adequately studied. We note, however, that synapomorphies linking the two species are lacking, and the possibility remains that the genus as recognised here is paraphyletic. Further testing must await the discovery of additional specimens for more detailed anatomical study.
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</paragraph>
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</subSubSection>
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</treatment>
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