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<document id="8C621F0C3A9C35240820A043A62CB382" ID-DOI="10.24199/j.mmv.2009.66.20" ID-ISSN="1447-2554" ID-Zenodo-Dep="12208159" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1718988851880" checkinUser="felipe" docAuthor="Poore, Gary C. B. &amp; Collins, David J." docDate="2009" docId="E74287C83D458D06665FFB5FFB01FA2D" docLanguage="en" docName="MemMusVictoria.66.2.221-287.pdf" docOrigin="Memoirs of Museum Victoria 66 (2)" docSource="https://museumsvictoria.com.au/collections-research/journals/memoirs-of-museum-victoria/volume-66-issue-2-2009/pages-221-287/" docStyle="DocumentStyle:5B3B5C052A93BFEEE334AD6097A94E45.2:MemMusVictoria.2003-.journal_article.type1" docStyleId="5B3B5C052A93BFEEE334AD6097A94E45" docStyleName="MemMusVictoria.2003-.journal_article.type1" docStyleVersion="2" docTitle="Pilbaraxius Poore &amp; Collins, 2009, gen. nov." docType="treatment" docVersion="3" lastPageNumber="269" masterDocId="1B7BFFB03D6B8D366576FFDBFFCDFFD7" masterDocTitle="Australian Axiidae (Crustacea: Decapoda: Axiidea)" masterLastPageNumber="287" masterPageNumber="221" pageNumber="267" updateTime="1718994965132" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="E31D066EE39FE42B11EC9705123B62CD">Australian Axiidae (Crustacea: Decapoda: Axiidea)</mods:title>
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<mods:namePart id="76C4A6086F116F3CB6FD2EA244186E6E">Poore, Gary C. B.</mods:namePart>
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<mods:namePart id="747177741B4BFAC06E0F9EA786BFEADD">Collins, David J.</mods:namePart>
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<mods:title id="F246A2DF224613F883CD387885F74AF1">Memoirs of Museum Victoria</mods:title>
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<treatment id="E74287C83D458D06665FFB5FFB01FA2D" ID-DOI="http://doi.org/10.5281/zenodo.12208885" ID-Zenodo-Dep="12208885" LSID="urn:lsid:plazi:treatment:E74287C83D458D06665FFB5FFB01FA2D" httpUri="http://treatment.plazi.org/id/E74287C83D458D06665FFB5FFB01FA2D" lastPageId="48" lastPageNumber="269" pageId="46" pageNumber="267">
<subSubSection id="27F165553D458D18665FFB5FFBCBFB4D" box="[809,1030,1156,1178]" pageId="46" pageNumber="267" type="nomenclature">
<paragraph id="6F5436DE3D458D18665FFB5FFBCBFB4D" blockId="46.[809,1030,1156,1178]" box="[809,1030,1156,1178]" pageId="46" pageNumber="267">
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<taxonomicName id="A8EB4D5D3D458D18665FFB5FFC68FB4D" ID-CoL="BMLRW" authorityName="Poore &amp; Collins" authorityYear="2009" box="[809,933,1156,1178]" class="Malacostraca" family="Axiidae" genus="Pilbaraxius" higherTaxonomySource="CoL,GBIF" kingdom="Animalia" order="Decapoda" pageId="46" pageNumber="267" phylum="Arthropoda" rank="genus" status="gen. nov.">
<emphasis id="5D9FEACC3D458D18665FFB5FFC68FB4D" bold="true" box="[809,933,1156,1178]" italics="true" pageId="46" pageNumber="267">Pilbaraxius</emphasis>
</taxonomicName>
<taxonomicNameLabel id="46AC57B73D458D1866DDFB5EFBCBFB4D" box="[939,1030,1157,1178]" pageId="46" pageNumber="267" rank="genus">gen. nov.</taxonomicNameLabel>
</heading>
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<subSubSection id="27F165553D458D06665FFB6AFB01FA2D" lastPageId="48" lastPageNumber="269" pageId="46" pageNumber="267" type="materials_examined">
<paragraph id="6F5436DE3D458D18665FFB6AFC50FB34" blockId="46.[809,1440,1200,1251]" pageId="46" pageNumber="267">
<emphasis id="5D9FEACC3D458D18665FFB6AFB06FB12" box="[809,1227,1200,1222]" italics="true" pageId="46" pageNumber="267">
<typeStatus id="B050887C3D458D18665FFB6AFC95FB11" box="[809,856,1201,1222]" pageId="46" pageNumber="267">Type</typeStatus>
species.
<taxonomicName id="A8EB4D5D3D458D1866ACFB6BFB06FB12" authorityName="Poore &amp; Collins" authorityYear="2009" box="[986,1227,1200,1221]" class="Malacostraca" family="Axiidae" genus="Pilbaraxius" higherTaxonomySource="CoL,GBIF" kingdom="Animalia" order="Decapoda" pageId="46" pageNumber="267" phylum="Arthropoda" rank="species" species="kariyarra" status="sp. nov.">Pilbaraxius kariyarra</taxonomicName>
</emphasis>
<taxonomicNameLabel id="46AC57B73D458D186192FB6AFA88FB11" box="[1252,1349,1201,1222]" pageId="46" pageNumber="267" rank="species">sp. nov.</taxonomicNameLabel>
, herein designated.
</paragraph>
<paragraph id="6F5436DE3D458D18665FFB21FB0BF8B8" blockId="46.[809,1441,1273,1903]" pageId="46" pageNumber="267">
<emphasis id="5D9FEACC3D458D18665FFB21FC43FAD8" box="[809,910,1274,1295]" italics="true" pageId="46" pageNumber="267">Diagnosis</emphasis>
. Carapace smooth or tuberculate; cervical groove visible laterally over third distance to anterolateral margin. Rostrum acutely triangular, with pair of lateral spines, longer than eyestalks, not depressed below level of carapace, continuous with definite lateral carinae; supraocular spines prominent; lateral carina with 1 spine; submedian carina present, with 1 spine; median carina a weak ridge, unarmed; postcervical carina absent. Abdominal somite 1 pleuron acute; pleuron 2 acute, pleura 35 acute, with anteroventral tooth. Eyestalk cylindrical, articulating; cornea weakly pigmented. Antenna, scaphocerite long. Maxilliped 3 exopod not clearly bent at base of flagellum. Pleurobranchs present above pereopods 24; podobranchs and arthrobranchs well developed; epipods present on maxilliped 2 to pereopod 4. Pereopods 1 slightly asymmetrical, with propodus flattened; carpus-propodus upper margin unarmed, sparsely setose. Pereopods 35 propodi with transverse rows of robust setae; dactyli tapering, with longitudinal row of robust setae. Pleopods 35, appendix interna present. Pleopod 1 of male absent. Pleopod 2 of male without appendix masculina.Uropodal endopod without lateral and distolateral spines; exopod with transverse suture. Telson with lateral fixed spines and posterolateral robust setae; apex rounded.
</paragraph>
<caption id="3B9466563D448D1965E5F8D7FE7AF8B9" ID-DOI="http://doi.org/10.5281/zenodo.12208231" ID-Zenodo-Dep="12208231" httpUri="https://zenodo.org/record/12208231/files/figure.png" pageId="47" pageNumber="268" startId="47.[147,207,1804,1823]" targetBox="[150,1445,229,1682]" targetPageId="47" targetType="figure">
<paragraph id="6F5436DE3D448D1965E5F8D7FE7AF8B9" blockId="47.[147,1448,1804,1902]" pageId="47" pageNumber="268">
Figure 30.
<taxonomicName id="A8EB4D5D3D448D196580F8D6FDFDF8F7" authority="(Sakai, 1994)" baseAuthorityName="Sakai" baseAuthorityYear="1994" box="[246,560,1804,1824]" class="Malacostraca" family="Axiidae" genus="Paraxiopsis" higherTaxonomySource="CoL,GBIF" kingdom="Animalia" order="Decapoda" pageId="47" pageNumber="268" phylum="Arthropoda" rank="species" species="pumilus">
<emphasis id="5D9FEACC3D448D196580F8D6FE7CF8C8" box="[246,433,1804,1823]" italics="true" pageId="47" pageNumber="268">Paraxiopsis pumilus</emphasis>
(
<bibRefCitation id="0B7A4B2F3D448D1964CBF8D7FDE7F8F7" author="Sakai, K." box="[445,554,1804,1824]" pageId="47" pageNumber="268" pagination="175 - 202" refId="ref40125" refString="Sakai, K. 1994. Eleven species of Australian Axiidae (Crustacea: Decapoda: Thalassinidea) with descriptions of one new genus and five new species. The Beagle, Occasional Papers of the Northern Territory Museum of Arts and Sciences 11: 175 - 202." type="journal article" year="1994">Sakai, 1994</bibRefCitation>
)
</taxonomicName>
. a, lateral view. b, dorsal view of carapace, peduncles of antennule and antenna. c, telson and right uropod. d, thoracic sternites 7 and 8, abdominal somite 1 with pleopods 1. e, left thoracic sternites 7 and 8, abdominal somite 1 with pleopod 1 (lateral). f, epistome, left antennule and antenna (ventral). g, maxilliped 3. h, major pereopod 1 (right, lateral). i, male pleopod 2. All figures from male, cl. 8.3 mm, NMV J53449.
</paragraph>
</caption>
<caption id="3B9466563D5B8D0665FAFAD1FAAFFAE0" ID-DOI="http://doi.org/10.5281/zenodo.12208233" ID-Zenodo-Dep="12208233" httpUri="https://zenodo.org/record/12208233/files/figure.png" pageId="48" pageNumber="269" startId="48.[140,200,1290,1309]" targetBox="[174,1421,229,1260]" targetPageId="48" targetType="figure">
<paragraph id="6F5436DE3D5B8D0665FAFAD1FAAFFAE0" blockId="48.[140,1440,1290,1336]" pageId="48" pageNumber="269">
Figure 31.
<taxonomicName id="A8EB4D5D3D5B8D066598FAD0FDE6FACA" authority="(Sakai, 1994)" baseAuthorityName="Sakai" baseAuthorityYear="1994" box="[238,555,1290,1309]" class="Malacostraca" family="Axiidae" genus="Paraxiopsis" higherTaxonomySource="CoL,GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="269" phylum="Arthropoda" rank="species" species="pumilus">
<emphasis id="5D9FEACC3D5B8D066598FAD0FE67FACA" box="[238,426,1290,1309]" italics="true" pageId="48" pageNumber="269">Paraxiopsis pumilus</emphasis>
(
<bibRefCitation id="0B7A4B2F3D5B8D0664C0FAD1FDE8FACA" author="Sakai, K." box="[438,549,1290,1309]" pageId="48" pageNumber="269" pagination="175 - 202" refId="ref40125" refString="Sakai, K. 1994. Eleven species of Australian Axiidae (Crustacea: Decapoda: Thalassinidea) with descriptions of one new genus and five new species. The Beagle, Occasional Papers of the Northern Territory Museum of Arts and Sciences 11: 175 - 202." type="journal article" year="1994">Sakai, 1994</bibRefCitation>
)
</taxonomicName>
. ac, pereopods 24. dh, anterior carapace, peduncles of antennule and antenna and rostrum of five individuals, cl. 4.8, 4.8, 5.2, 6.0, 7.3 mm. Figs ac from male, cl. 8.3 mm, NMV J53449; figs. de from male, 7.3 mm, NMV J59647.
</paragraph>
</caption>
<paragraph id="6F5436DE3D5B8D0665FAFA7DFD7DFA0E" blockId="48.[140,771,1446,1903]" pageId="48" pageNumber="269">
<emphasis id="5D9FEACC3D5B8D0665FAFA7DFF34FA6C" box="[140,249,1446,1467]" italics="true" pageId="48" pageNumber="269">Etymology</emphasis>
. Pilbara is the name of the region of North-western
<collectingCountry id="17FC764E3D5B8D0665FAFA18FF24FA0E" box="[140,233,1475,1497]" name="Australia" pageId="48" pageNumber="269">Australia</collectingCountry>
close to the
<typeStatus id="B050887C3D5B8D066411FA1FFE5EFA0E" box="[359,403,1476,1497]" pageId="48" pageNumber="269">type</typeStatus>
locality of the
<typeStatus id="B050887C3D5B8D06675BFA1FFD94FA0E" box="[557,601,1476,1497]" pageId="48" pageNumber="269">type</typeStatus>
species.
</paragraph>
<paragraph id="6F5436DE3D5B8D0665C4FA3BFB01FA2D" blockId="48.[140,771,1446,1903]" lastBlockId="48.[809,1440,1446,1530]" pageId="48" pageNumber="269">
<emphasis id="5D9FEACC3D5B8D0665C4FA3BFEC6FA22" box="[178,267,1504,1525]" italics="true" pageId="48" pageNumber="269">Remarks</emphasis>
. The problematic generic placement of the
<typeStatus id="B050887C3D5B8D0667A0FA3AFCCEFA21" box="[726,771,1505,1526]" pageId="48" pageNumber="269">type</typeStatus>
species highlights issues with the family
<taxonomicName id="A8EB4D5D3D5B8D06675DFA26FD4DF9C4" authorityName="Huxley" authorityYear="1879" box="[555,640,1533,1555]" class="Malacostraca" family="Axiidae" higherTaxonomySource="CoL,GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="269" phylum="Arthropoda" rank="family">Axiidae</taxonomicName>
. The spinose rostrum, diverging palm and long fingers on the chelipeds and abdominal pleura with prominent ventral spination closely resemble those of
<taxonomicName id="A8EB4D5D3D5B8D066420F98FFED3F951" authority="Sakai and de Saint Laurent, 1989" authorityName="Sakai and de Saint Laurent" authorityYear="1989" class="Malacostraca" family="Axiidae" genus="Calaxiopsis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="269" phylum="Arthropoda" rank="species" species="serrata">
<emphasis id="5D9FEACC3D5B8D066420F98FFDEAF9BD" box="[342,551,1620,1642]" italics="true" pageId="48" pageNumber="269">Calaxiopsis serrata</emphasis>
<bibRefCitation id="0B7A4B2F3D5B8D066745F98FFED3F951" author="Sakai, K. &amp; de Saint Laurent, M." pageId="48" pageNumber="269" pagination="1 - 104" refId="ref40228" refString="Sakai, K., and de Saint Laurent, M. 1989. A check list of Axiidae (Decapoda, Crustacea, Thalassinidea, Anomula), with remarks and in addition descriptions of one new subfamily, eleven new genera and two new species. Naturalists, Publications of Tokushima Biological Laboratory, Shikoku University 3: 1 - 104." type="journal article" year="1989">Sakai and de Saint Laurent, 1989</bibRefCitation>
</taxonomicName>
, a species belong to the “calocaridid” group. The new species differs from all in this group in possessing pleurobranchs and lacking the modified pleopods 1 and 2. The new species also resembles species of
<taxonomicName id="A8EB4D5D3D5B8D06674EF913FD59F90A" authorityName="Sakai and de Saint Laurent" authorityYear="1989" box="[568,660,1736,1757]" class="Malacostraca" family="Axiidae" genus="Calaxius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="269" phylum="Arthropoda" rank="genus">
<emphasis id="5D9FEACC3D5B8D06674EF913FD59F90A" box="[568,660,1736,1757]" italics="true" pageId="48" pageNumber="269">Calaxius</emphasis>
</taxonomicName>
but these usually have highly setose chelipeds and rows of prominent spines on the upper margin of the chelipeds (as in
<taxonomicName id="A8EB4D5D3D5B8D066706F8D9FCCFF8CF" authorityName="Sakai and de Saint Laurent" authorityYear="1989" box="[624,770,1794,1816]" class="Malacostraca" family="Axiidae" genus="Calaxius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="269" phylum="Arthropoda" rank="species" species="acutirostris">
<emphasis id="5D9FEACC3D5B8D066706F8D9FCCFF8CF" box="[624,770,1794,1816]" italics="true" pageId="48" pageNumber="269">C. acutirostris</emphasis>
</taxonomicName>
redescribed above). Neither of these conditions characterises the new species. In addition, the uropodal endopod is apically rounded and lacking lateral and distolateral spines typical of
<taxonomicName id="A8EB4D5D3D5B8D06665FFA7DFC48FA6C" authorityName="Sakai and de Saint Laurent" authorityYear="1989" box="[809,901,1446,1467]" class="Malacostraca" family="Axiidae" genus="Calaxius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="48" pageNumber="269" phylum="Arthropoda" rank="genus">
<emphasis id="5D9FEACC3D5B8D06665FFA7DFC48FA6C" box="[809,901,1446,1467]" italics="true" pageId="48" pageNumber="269">Calaxius</emphasis>
</taxonomicName>
and many other axiid genera. Further, pleopod 2 lacks an appendix masculina, a state seen in few axiids. In summary, a new genus seems warranted.
</paragraph>
</subSubSection>
</treatment>
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