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<document id="C63FADE5BB93F0CDAF600FDCC86FAFD0" ID-DOI="10.5281/zenodo.212118" ID-GBIF-Dataset="3971e0cf-2026-45cc-825d-601f5dfe024a" ID-ISSN="1175-5326" ID-Zenodo-Dep="212118" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460474666502" checkinUser="plazi" docAuthor="Edgar, Graham J." docDate="2012" docId="4D340E78FFCA905546A3FEF9FC2DFA31" docLanguage="en" docName="zt03276p037.pdf" docOrigin="Zootaxa 3276" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Leptochelia evansi Edgar, 2012, n. sp." docType="treatment" docVersion="9" lastPageNumber="15" masterDocId="B10D7600FFC1905B4634FFB5FFC1FFAD" masterDocTitle="New Leptocheliidae (Crustacea: Tanaidacea: Tanaidomorpha) from Australian seagrass and macro-algal habitats, and a redescription of the poorly-known Leptochelia ignota from Sydney Harbour" masterLastPageNumber="37" masterPageNumber="1" pageNumber="12" updateTime="1698306514470" updateUser="plazi">
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<mods:title id="D20ADF48FFB7984CA5EED588F2E0FE4C">New Leptocheliidae (Crustacea: Tanaidacea: Tanaidomorpha) from Australian seagrass and macro-algal habitats, and a redescription of the poorly-known Leptochelia ignota from Sydney Harbour</mods:title>
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<mods:namePart id="C21C6A3B7F4E439C64E5BEF3E10FD99A">Edgar, Graham J.</mods:namePart>
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<mods:date id="51EF2DCA2C75904281B7AC021FEA1959">2012</mods:date>
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<treatment id="4D340E78FFCA905546A3FEF9FC2DFA31" ID-DOI="http://doi.org/10.5281/zenodo.3506305" ID-GBIF-Taxon="119516032" ID-Zenodo-Dep="3506305" LSID="urn:lsid:plazi:treatment:4D340E78FFCA905546A3FEF9FC2DFA31" httpUri="http://treatment.plazi.org/id/4D340E78FFCA905546A3FEF9FC2DFA31" lastPageId="14" lastPageNumber="15" pageId="11" pageNumber="12">
<subSubSection id="8D87ECE5FFCA905046A3FEF9FED3FE2B" pageId="11" pageNumber="12" type="nomenclature">
<paragraph id="C522BF6EFFCA905046A3FEF9FE00FEC8" blockId="11.[151,449,331,390]" box="[151,449,331,358]" pageId="11" pageNumber="12">
<heading id="9E6A0802FFCA905046A3FEF9FE00FEC8" bold="true" box="[151,449,331,358]" fontSize="11" level="1" pageId="11" pageNumber="12" reason="1">
<emphasis id="F7E9637CFFCA905046A3FEF9FE00FEC8" bold="true" box="[151,449,331,358]" pageId="11" pageNumber="12">
<taxonomicName id="029DC4EDFFCA905046A3FEF9FEB9FECB" ID-CoL="6PFGF" box="[151,376,332,358]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="11" pageNumber="12" phylum="Arthropoda" rank="species" species="evansi" status="sp. nov.">
<emphasis id="F7E9637CFFCA905046A3FEF9FEB9FECB" bold="true" box="[151,376,332,358]" italics="true" pageId="11" pageNumber="12">Leptochelia evansi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="ECDADE07FFCA9050474BFEFEFE00FEC8" box="[383,449,331,357]" pageId="11" pageNumber="12" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="C522BF6EFFCA905046AAFEDBFED3FE2B" blockId="11.[151,449,331,390]" box="[158,274,366,390]" pageId="11" pageNumber="12">
(
<figureCitation id="5DA6A3EBFFCA90504692FEDBFECBFE2B" box="[166,266,366,390]" captionStart-0="FIGURE 6" captionStart-1="FIGURE 7" captionStartId-0="12.[151,250,1974,1997]" captionStartId-1="13.[151,250,1980,2003]" captionTargetBox-0="[180,1393,217,1931]" captionTargetBox-1="[193,1395,211,1940]" captionTargetId-0="figure@12.[174,1406,193,1939]" captionTargetId-1="figure@13.[176,1408,193,1954]" captionTargetPageId-0="12" captionTargetPageId-1="13" captionText-0="FIGURE 6. Leptochelia evansi. Seven Mile Beach, WA. Male dorsal (holotype), antennule (A 1), antenna (A 2), cheliped (CH), pleotelson (Plt). Scale units: 1 mm for whole animal, 0.1 mm for appendages." captionText-1="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri-0="https://zenodo.org/record/212123/files/figure.png" httpUri-1="https://zenodo.org/record/212124/files/figure.png" pageId="11" pageNumber="12">Figs 67</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="8D87ECE5FFCA905046A3FE03FCA9FD2F" pageId="11" pageNumber="12" type="materials_examined">
<paragraph id="C522BF6EFFCA905046A3FE03FBE6FE5F" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046A3FE03FE43FE62" bold="true" box="[151,386,438,463]" pageId="11" pageNumber="12">Material examined.</emphasis>
<emphasis id="F7E9637CFFCA905047BFFE03FE3BFE63" box="[395,506,438,462]" italics="true" pageId="11" pageNumber="12">
<typeStatus id="1A2601CCFFCA905047BFFE03FE37FE63" box="[395,502,438,462]" pageId="11" pageNumber="12" type="holotype">Holotype</typeStatus>
.
</emphasis>
Male (
<collectionCode id="A38C27ABFFCA90504478FE03FD4EFE63" LSID="urn:lsid:biocol.org:col:34978" box="[588,655,438,462]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34978" name="Museum Victoria" pageId="11" pageNumber="12">NMV</collectionCode>
<accessionNumber id="DACE228DFFCA905044ADFE03FD2FFE63" box="[665,750,438,462]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/J62324" pageId="11" pageNumber="12" type="EnaNcbi">J62324</accessionNumber>
),
<quantity id="0265128BFFCA90504537FE03FC9CFE63" box="[771,861,438,462]" metricMagnitude="-3" metricUnit="m" metricValue="3.2" pageId="11" pageNumber="12" unit="mm" value="3.2">3.2 mm</quantity>
, Seven Mile Beach, WA (
<geoCoordinate id="A0A9D9A9FFCA905042BDFE03FB25FE63" box="[1161,1252,438,462]" direction="south" orientation="latitude" pageId="11" pageNumber="12" precision="555" value="-29.17">29.17°S</geoCoordinate>
<geoCoordinate id="A0A9D9A9FFCA905042D9FE03FA98FE63" box="[1261,1369,438,462]" direction="east" orientation="longitude" pageId="11" pageNumber="12" precision="555" value="114.89">114.89°E</geoCoordinate>
),
<quantity id="0265128BFFCA9050435BFE03FA5DFE63" box="[1391,1436,438,462]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="11" pageNumber="12" unit="m" value="1.0">1 m</quantity>
depth, seagrass (
<taxonomicName id="029DC4EDFFCA90504765FE6EFD88FE5E" box="[337,585,475,499]" class="Liliopsida" family="Cymodoceaceae" genus="Amphibolis" kingdom="Plantae" order="Alismatales" pageId="11" pageNumber="12" phylum="Tracheophyta" rank="species" species="antarctica">
<emphasis id="F7E9637CFFCA90504765FE6EFD88FE5E" box="[337,585,475,499]" italics="true" pageId="11" pageNumber="12">Amphibolis antarctica</emphasis>
</taxonomicName>
and
<taxonomicName id="029DC4EDFFCA905044B4FE6EFD3DFE5E" box="[640,764,475,499]" class="Liliopsida" family="Cymodoceaceae" genus="Amphibolis" kingdom="Plantae" order="Alismatales" pageId="11" pageNumber="12" phylum="Tracheophyta" rank="species" species="griffithii">
<emphasis id="F7E9637CFFCA905044B4FE6EFD3DFE5E" box="[640,764,475,499]" italics="true" pageId="11" pageNumber="12">A. griffithii</emphasis>
</taxonomicName>
) washings,
<date id="B12399AEFFCA905045B7FE6FFBE2FE5F" box="[899,1059,474,498]" pageId="11" pageNumber="12" value="1985-03-03">3 March 1985</date>
.
</paragraph>
<paragraph id="C522BF6EFFCA905046A3FDB5FBC6FDBB" blockId="11.[151,1437,438,1974]" box="[151,1031,510,535]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046A3FDB5FED1FDBA" box="[151,272,512,535]" italics="true" pageId="11" pageNumber="12">
<typeStatus id="1A2601CCFFCA905046A3FDB5FECDFDBA" box="[151,268,512,535]" pageId="11" pageNumber="12" type="paratype">Paratypes</typeStatus>
.
</emphasis>
<specimenCount id="D39B74E7FFCA90504722FE4BFEBBFDBB" box="[278,378,510,534]" pageId="11" pageNumber="12" type="male">16 males</specimenCount>
(
<collectionCode id="A38C27ABFFCA905047BDFE4BFE0DFDBB" LSID="urn:lsid:biocol.org:col:34978" box="[393,460,510,534]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34978" name="Museum Victoria" pageId="11" pageNumber="12">NMV</collectionCode>
<accessionNumber id="DACE228DFFCA905047E7FE4BFDE9FDBB" box="[467,552,510,534]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/J62325" pageId="11" pageNumber="12" type="EnaNcbi">J62325</accessionNumber>
),
<typeStatus id="1A2601CCFFCA90504408FE4BFD5FFDBB" box="[572,670,510,534]" pageId="11" pageNumber="12" type="holotype">holotype</typeStatus>
location,
<date id="B12399AEFFCA90504538FE4AFCBCFDBB" box="[780,893,510,534]" pageId="11" pageNumber="12" value="1985-06">June 1985</date>
<date id="B12399AEFFCA905045B8FE4BFBC3FDBB" box="[908,1026,510,534]" pageId="11" pageNumber="12" value="1987-06">June 1987</date>
.
</paragraph>
<paragraph id="C522BF6EFFCA905046A3FD96FCA9FD2F" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046A3FD96FE81FD96" box="[151,320,547,571]" italics="true" pageId="11" pageNumber="12">Other material</emphasis>
.
<specimenCount id="D39B74E7FFCA90504764FD97FE77FD97" box="[336,438,546,570]" pageId="11" pageNumber="12" type="male">32 males</specimenCount>
(
<collectionCode id="A38C27ABFFCA905047F3FD97FDCBFD97" LSID="urn:lsid:biocol.org:col:34978" box="[455,522,546,570]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34978" name="Museum Victoria" pageId="11" pageNumber="12">NMV</collectionCode>
<accessionNumber id="DACE228DFFCA90504427FD97FDA9FD97" box="[531,616,546,570]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/J62326" pageId="11" pageNumber="12" type="EnaNcbi">J62326</accessionNumber>
), Cliff Head, WA (
<geoCoordinate id="A0A9D9A9FFCA90504576FD97FC5FFD97" box="[834,926,546,570]" direction="south" orientation="latitude" pageId="11" pageNumber="12" precision="555" value="-29.52">29.52°S</geoCoordinate>
<geoCoordinate id="A0A9D9A9FFCA90504593FD97FBD2FD97" box="[935,1043,546,570]" direction="east" orientation="longitude" pageId="11" pageNumber="12" precision="555" value="114.99">114.99°E</geoCoordinate>
),
<quantity id="0265128BFFCA9050421CFD97FB94FD97" box="[1064,1109,546,570]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="11" pageNumber="12" unit="m" value="1.0">1 m</quantity>
depth, seagrass (
<taxonomicName id="029DC4EDFFCA90504328FD96FEC8FDF3" class="Liliopsida" family="Cymodoceaceae" genus="Amphibolis" kingdom="Plantae" order="Alismatales" pageId="11" pageNumber="12" phylum="Tracheophyta" rank="species" species="antarctica">
<emphasis id="F7E9637CFFCA90504328FD96FEC8FDF3" italics="true" pageId="11" pageNumber="12">Amphibolis antarctica</emphasis>
</taxonomicName>
) washings,
<date id="B12399AEFFCA905047A4FDF2FDC1FDF3" box="[400,512,582,606]" pageId="11" pageNumber="12" value="1985-06">June 1985</date>
<date id="B12399AEFFCA9050443BFDF3FD44FDF3" box="[527,645,582,606]" pageId="11" pageNumber="12" value="1987-06">June 1987</date>
; six males (
<collectionCode id="A38C27ABFFCA9050453DFDF3FC8DFDF3" LSID="urn:lsid:biocol.org:col:34978" box="[777,844,582,606]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34978" name="Museum Victoria" pageId="11" pageNumber="12">NMV</collectionCode>
<accessionNumber id="DACE228DFFCA90504567FDF3FC69FDF3" box="[851,936,582,606]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/J62327" pageId="11" pageNumber="12" type="EnaNcbi">J62327</accessionNumber>
), Little Armstrong Bay, Rottnest Island, WA (
<geoCoordinate id="A0A9D9A9FFCA905046ABFDDFFF3BFD2F" box="[159,250,618,642]" direction="south" orientation="latitude" pageId="11" pageNumber="12" precision="555" value="-31.99">31.99°S</geoCoordinate>
<geoCoordinate id="A0A9D9A9FFCA90504735FDDFFEACFD2F" box="[257,365,618,642]" direction="east" orientation="longitude" pageId="11" pageNumber="12" precision="555" value="115.5">115.50°E</geoCoordinate>
), seagrass washings,
<quantity id="0265128BFFCA9050446FFDDFFD47FD2F" box="[603,646,618,642]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="11" pageNumber="12" unit="m" value="1.0">1 m</quantity>
depth,
<date id="B12399AEFFCA905044EDFDDFFCA2FD2F" box="[729,867,618,642]" pageId="11" pageNumber="12" value="1996-01-21">21 Jan 1996</date>
.
</paragraph>
</subSubSection>
<subSubSection id="8D87ECE5FFCA905546F3FD3BFD84FD42" lastPageId="14" lastPageNumber="15" pageId="11" pageNumber="12" type="description">
<paragraph id="C522BF6EFFCA905046F3FD3BFF3DFC9B" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046F3FD3BFE99FD0B" bold="true" box="[199,344,654,679]" pageId="11" pageNumber="12">Description.</emphasis>
MALE.
<emphasis id="F7E9637CFFCA905047F4FD3BFE3BFD0B" box="[448,506,654,678]" italics="true" pageId="11" pageNumber="12">Body</emphasis>
(
<figureCitation id="5DA6A3EBFFCA9050443FFD3BFD90FD0B" box="[523,593,654,678]" captionStart="FIGURE 6" captionStartId="12.[151,250,1974,1997]" captionTargetBox="[180,1393,217,1931]" captionTargetId="figure@12.[174,1406,193,1939]" captionTargetPageId="12" captionText="FIGURE 6. Leptochelia evansi. Seven Mile Beach, WA. Male dorsal (holotype), antennule (A 1), antenna (A 2), cheliped (CH), pleotelson (Plt). Scale units: 1 mm for whole animal, 0.1 mm for appendages." httpUri="https://zenodo.org/record/212123/files/figure.png" pageId="11" pageNumber="12">Fig. 6</figureCitation>
). Observed length 1.84.0 mm; body slender, about ten times longer than broad; cephalothorax frontal margin straight from eye to slight rostrum, lateral margin straight-sided for about one third distance from eye, then expanded in smooth convex curve to anterio-lateral corner of pereonite-1, length about 1.2 times width and approximately one-sixth body length; eyes pear-shaped, about one-fifth length of cephalothorax.
</paragraph>
<paragraph id="C522BF6EFFCA905046FDFCF6FA40FC0F" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">Pereon just over half total length; pereonite-1 length about one-quarter width; pereonites 2 and 3 similar, about 1.5 times length of pereonite-1, length about one-third width; pereonites 4 and 5 about 1.6 times length of pereonite-3, length about half width; pereonite-6 about 1.1 times length of pereonite-3, length about one-third width.</paragraph>
<paragraph id="C522BF6EFFCA905046FDFC1BFDD7FC47" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">Pleonites 15 similar other than declining in width posteriorly with pleonite 5 four-fifths width of pleonite-1, together one-fifth as long as body.</paragraph>
<paragraph id="C522BF6EFFCA905046FDFC43FE51FBFB" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">Pleotelson about 1.2 times length of pleonite 5; posterior margin with paired long and small central setae, one or two simple setae and plumose seta posterio-laterally, one or two simple seta anterio-laterally and another near anterio-dorsal margin.</paragraph>
<paragraph id="C522BF6EFFCA905046FDFBD6FAB6FB6F" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046FDFBD6FEFAFBD6" box="[201,315,1123,1147]" italics="true" pageId="11" pageNumber="12">Antennule</emphasis>
(
<figureCitation id="5DA6A3EBFFCA9050477EFBD7FE4FFBD7" box="[330,398,1122,1146]" captionStart="FIGURE 6" captionStartId="12.[151,250,1974,1997]" captionTargetBox="[180,1393,217,1931]" captionTargetId="figure@12.[174,1406,193,1939]" captionTargetPageId="12" captionText="FIGURE 6. Leptochelia evansi. Seven Mile Beach, WA. Male dorsal (holotype), antennule (A 1), antenna (A 2), cheliped (CH), pleotelson (Plt). Scale units: 1 mm for whole animal, 0.1 mm for appendages." httpUri="https://zenodo.org/record/212123/files/figure.png" pageId="11" pageNumber="12">Fig. 6</figureCitation>
). Two-thirds length of body, article-1 about ten times longer than wide, with distal seta; article-2 about 44% of article-1; article-3 about 17% of article-2, articles 4-11 comprising flagellum that extends about one-quarter of total antennule length, each article with two or three aesthetascs distally; terminal article minute.
</paragraph>
<paragraph id="C522BF6EFFCA905046FDFB7BFA4DFADB" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046FDFB7BFEE7FB4B" box="[201,294,1230,1254]" italics="true" pageId="11" pageNumber="12">Antenna</emphasis>
(
<figureCitation id="5DA6A3EBFFCA90504703FB7BFEBFFB4B" box="[311,382,1230,1254]" captionStart="FIGURE 6" captionStartId="12.[151,250,1974,1997]" captionTargetBox="[180,1393,217,1931]" captionTargetId="figure@12.[174,1406,193,1939]" captionTargetPageId="12" captionText="FIGURE 6. Leptochelia evansi. Seven Mile Beach, WA. Male dorsal (holotype), antennule (A 1), antenna (A 2), cheliped (CH), pleotelson (Plt). Scale units: 1 mm for whole animal, 0.1 mm for appendages." httpUri="https://zenodo.org/record/212123/files/figure.png" pageId="11" pageNumber="12">Fig. 6</figureCitation>
). Six articles, together about two-fifths as long as antennule; article-1 as long as wide, with single seta; article-2 about length of article-1 but narrower, with two or three setae; article-3 length 1.5 times length of article-2, with two distal setae; article-4 about two-thirds length of article-3, with three simple and two plumose setae; article-5 about 2.1 times length of article-4 but half width, with two or three long setae distally; article-6 reduced to small terminal cap, with about five setae, the longest extending about half length of antennule articles.
</paragraph>
<paragraph id="C522BF6EFFCA905046FDFA36FDE7FA37" blockId="11.[151,1437,438,1974]" box="[201,550,1410,1435]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046FDFA36FE8DFA36" box="[201,332,1411,1435]" italics="true" pageId="11" pageNumber="12">Mouthparts</emphasis>
reduced and fused.
</paragraph>
<paragraph id="C522BF6EFFCA905046FDFA13FC86F93B" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046FDFA13FEEEFA13" box="[201,303,1446,1470]" italics="true" pageId="11" pageNumber="12">Cheliped</emphasis>
(
<figureCitation id="5DA6A3EBFFCA9050470BFA13FE47FA13" box="[319,390,1446,1470]" captionStart="FIGURE 6" captionStartId="12.[151,250,1974,1997]" captionTargetBox="[180,1393,217,1931]" captionTargetId="figure@12.[174,1406,193,1939]" captionTargetPageId="12" captionText="FIGURE 6. Leptochelia evansi. Seven Mile Beach, WA. Male dorsal (holotype), antennule (A 1), antenna (A 2), cheliped (CH), pleotelson (Plt). Scale units: 1 mm for whole animal, 0.1 mm for appendages." httpUri="https://zenodo.org/record/212123/files/figure.png" pageId="11" pageNumber="12">Fig. 6</figureCitation>
). Length similar to length of body; basis large, one sixth length of carpus; merus triangular with two setae; carpus about half length of cheliped, seven times longer than wide, with about eight scattered setae; propodus similar in length and width to carpus, inner comb-like row of about 15 seta and separate longer seta near articulation with dactylus, fixed finger similar length to palm, smoothly curved as long projection with length about 15 times width, three setae on inner margin and two setae on outer margin, minute terminal spine; dactylus slightly longer than fixed finger but otherwise with matching proportions and with overlapping tip, inner margin smoothlycurved with row of about ten very short setae, unguis minute.
</paragraph>
<paragraph id="C522BF6EFFCA905046FDF916FC4EF8E7" blockId="11.[151,1437,438,1974]" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046FDF916FE8DF916" box="[201,332,1699,1723]" italics="true" pageId="11" pageNumber="12">Pereopod-1</emphasis>
(
<figureCitation id="5DA6A3EBFFCA90504768F917FE60F917" box="[348,417,1698,1722]" captionStart="FIGURE 7" captionStartId="13.[151,250,1980,2003]" captionTargetBox="[193,1395,211,1940]" captionTargetId="figure@13.[176,1408,193,1954]" captionTargetPageId="13" captionText="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="11" pageNumber="12">Fig. 7</figureCitation>
). Basis width one-sixth length, length 1.4 times length of merus and carpus together, with single seta about one-fifth distance along dorsal margin; ischium with one ventral seta; merus one-third length of basis with dorso-distal seta; carpus similar in length to merus with five distal setae; propodus slightly less than length of merus and carpus together, with four or five distal setae including spiniform seta; dactylus about threefifths length of propodus, unguis about 1.5 times length of dactylus.
</paragraph>
<paragraph id="C522BF6EFFCA905546FDF8E2FDE7FF5A" blockId="11.[151,1437,438,1974]" lastBlockId="14.[151,1436,151,1436]" lastPageId="14" lastPageNumber="15" pageId="11" pageNumber="12">
<emphasis id="F7E9637CFFCA905046FDF8E2FE5CF8C2" box="[201,413,1879,1903]" italics="true" pageId="11" pageNumber="12">Pereopods 2 and 3</emphasis>
(
<figureCitation id="5DA6A3EBFFCA90504799F8E3FE33F8C3" box="[429,498,1878,1902]" captionStart="FIGURE 7" captionStartId="13.[151,250,1980,2003]" captionTargetBox="[193,1395,211,1940]" captionTargetId="figure@13.[176,1408,193,1954]" captionTargetPageId="13" captionText="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="11" pageNumber="12">Fig. 7</figureCitation>
). Similar; basis width about one-sixth length, length 1.6 times length of merus and carpus together, with seta about one-quarter distance along dorsal margin; ischium with two ventro-distal setae; merus one-quarter length of basis, with spiniform seta and simple seta distally; carpus slightly longer than merus, with two spiniform setae and simple seta near distal margin; propodus 1.3 times length of carpus, with spiniform seta and two simple setae near distal margin; dactylus and unguis together about half length of propodus, unguis about two-thirds length of dactylus.
</paragraph>
<caption id="91E2EFE6FFCD905746A3F803FC6BF846" httpUri="https://zenodo.org/record/212123/files/figure.png" pageId="12" pageNumber="13" targetBox="[180,1393,217,1931]" targetPageId="12">
<paragraph id="C522BF6EFFCD905746A3F803FC6BF846" blockId="12.[151,1436,1974,2027]" pageId="12" pageNumber="13">
<emphasis id="F7E9637CFFCD905746A3F803FED3F861" bold="true" box="[151,274,1974,1997]" pageId="12" pageNumber="13">FIGURE 6.</emphasis>
<emphasis id="F7E9637CFFCD9057472CF802FE1FF860" box="[280,478,1975,1997]" italics="true" pageId="12" pageNumber="13">
<taxonomicName id="029DC4EDFFCD9057472CF802FE1BF860" box="[280,474,1975,1997]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="12" pageNumber="13" phylum="Arthropoda" rank="species" species="evansi">Leptochelia evansi</taxonomicName>
.
</emphasis>
Seven Mile Beach, WA. Male dorsal (holotype), antennule (A1), antenna (A2), cheliped (CH), pleotelson (Plt). Scale units: 1 mm for whole animal, 0.1 mm for appendages.
</paragraph>
</caption>
<caption id="91E2EFE6FFCC905646A3F809FE74F85C" httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="13" pageNumber="14" targetBox="[193,1395,211,1940]" targetPageId="13">
<paragraph id="C522BF6EFFCC905646A3F809FE74F85C" blockId="13.[151,1436,1980,2034]" pageId="13" pageNumber="14">
<emphasis id="F7E9637CFFCC905646A3F809FED2F87F" bold="true" box="[151,275,1980,2003]" pageId="13" pageNumber="14">FIGURE 7.</emphasis>
<emphasis id="F7E9637CFFCC9056472EF808FE21F87E" box="[282,480,1981,2003]" italics="true" pageId="13" pageNumber="14">
<taxonomicName id="029DC4EDFFCC9056472EF808FE1DF87E" box="[282,476,1981,2003]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="13" pageNumber="14" phylum="Arthropoda" rank="species" species="evansi">Leptochelia evansi</taxonomicName>
.
</emphasis>
Seven Mile Beach, WA. Male. Pereopods 16 (P1P6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages.
</paragraph>
</caption>
<paragraph id="C522BF6EFFCF905546FDFEB1FC6EFE62" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546FDFEB1FE5CFEB1" box="[201,413,260,284]" italics="true" pageId="14" pageNumber="15">Pereopods 4 and 5</emphasis>
(
<figureCitation id="5DA6A3EBFFCF90554799FEB1FE32FEB1" box="[429,499,260,284]" captionStart="FIGURE 7" captionStartId="13.[151,250,1980,2003]" captionTargetBox="[193,1395,211,1940]" captionTargetId="figure@13.[176,1408,193,1954]" captionTargetPageId="13" captionText="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="14" pageNumber="15">Fig. 7</figureCitation>
). Similar; basis width about one-third length, length 1.3 times length of merus and carpus together, with two setae near ventral margin; ischium with 2 ventro-distal setae; merus two-fifths length of basis, with two spiniform setae distally; carpus slightly longer and about equal in width to merus, with four spiniform setae and one or two simple setae near distal margin; propodus 1.2 times length of carpus, with two spiniform setae ventro-distally and two simple setae dorso-distally; dactylus and unguis partially fused into claw, together just over half length of propodus, unguis about one-half length of dactylus.
</paragraph>
<paragraph id="C522BF6EFFCF905546FDFE69FCC2FDBA" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546FDFE69FE8CFE59" box="[201,333,476,500]" italics="true" pageId="14" pageNumber="15">Pereopod-6</emphasis>
(
<figureCitation id="5DA6A3EBFFCF9055476AFE69FE65FE59" box="[350,420,476,500]" captionStart="FIGURE 7" captionStartId="13.[151,250,1980,2003]" captionTargetBox="[193,1395,211,1940]" captionTargetId="figure@13.[176,1408,193,1954]" captionTargetPageId="13" captionText="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="14" pageNumber="15">Fig. 7</figureCitation>
). Similar to pereopod-5, other than with slightly wider basis with width about 2.7 times length; propodus with three simple setae dorso-distally.
</paragraph>
<paragraph id="C522BF6EFFCF905546FDFD91FD29FD29" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546FDFD91FEA2FD91" box="[201,355,548,572]" italics="true" pageId="14" pageNumber="15">Pleopods 15</emphasis>
(
<figureCitation id="5DA6A3EBFFCF90554747FD91FE79FD91" box="[371,440,548,572]" captionStart="FIGURE 7" captionStartId="13.[151,250,1980,2003]" captionTargetBox="[193,1395,211,1940]" captionTargetId="figure@13.[176,1408,193,1954]" captionTargetPageId="13" captionText="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="14" pageNumber="15">Fig. 7</figureCitation>
). Similar; basal article with plumose seta, exopod with about 29 plumose setae on inner margin, no clear gap between proximal-most seta and others in series; endopod with about 21 plumose setae on inner margin, plumose seta midway on outer margin.
</paragraph>
<paragraph id="C522BF6EFFCF905546FDFD25FD84FD42" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546FDFD25FEDEFD05" box="[201,287,656,680]" italics="true" pageId="14" pageNumber="15">Uropod</emphasis>
(
<figureCitation id="5DA6A3EBFFCF9055471BFD3AFEB2FD0A" box="[303,371,655,679]" captionStart="FIGURE 7" captionStartId="13.[151,250,1980,2003]" captionTargetBox="[193,1395,211,1940]" captionTargetId="figure@13.[176,1408,193,1954]" captionTargetPageId="13" captionText="FIGURE 7. Leptochelia evansi. Seven Mile Beach, WA. Male. Pereopods 1 6 (P 1 P 6), pleopod (Pl), uropod (U). Scale units 0.1 mm for full appendages." httpUri="https://zenodo.org/record/212124/files/figure.png" pageId="14" pageNumber="15">Fig. 7</figureCitation>
). Basal article length about 1.4 times width, with four distal setae; exopod with one small article, length about one-third of article-1 of endopod, with four long terminal setae that extend about halfway to end of endopod; endopod with six articles.
</paragraph>
</subSubSection>
<subSubSection id="8D87ECE5FFCF905546FDFD49FDCAFC9A" pageId="14" pageNumber="15" type="etymology">
<paragraph id="C522BF6EFFCF905546FDFD49FDCAFC9A" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546FDFD49FE91FCB9" bold="true" box="[201,336,764,788]" pageId="14" pageNumber="15">Etymology.</emphasis>
This species is named in honour of David Evans, CSIRO senior technician, who assisted with field surveys at the
<typeStatus id="1A2601CCFFCF90554746FC94FE63FC94" box="[370,418,801,825]" pageId="14" pageNumber="15">type</typeStatus>
location.
</paragraph>
</subSubSection>
<subSubSection id="8D87ECE5FFCF905546F3FCF6FD14FCF1" box="[199,725,835,861]" pageId="14" pageNumber="15" type="distribution">
<paragraph id="C522BF6EFFCF905546F3FCF6FD14FCF1" blockId="14.[151,1436,151,1436]" box="[199,725,835,861]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546F3FCF6FEA1FCF1" bold="true" box="[199,352,835,860]" pageId="14" pageNumber="15">Distribution.</emphasis>
Rottnest Island to Dongara, WA.
</paragraph>
</subSubSection>
<subSubSection id="8D87ECE5FFCF905546F3FCDDFC2DFA31" pageId="14" pageNumber="15" type="discussion">
<paragraph id="C522BF6EFFCF905546F3FCDDFEE4FAA1" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
<emphasis id="F7E9637CFFCF905546F3FCDDFEFAFC2D" bold="true" box="[199,315,872,896]" pageId="14" pageNumber="15">Remarks.</emphasis>
<taxonomicName id="029DC4EDFFCF90554775FCDDFDD2FC2D" box="[321,531,872,896]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="evansi" status="sp. nov.">
<emphasis id="F7E9637CFFCF90554775FCDDFDD2FC2D" box="[321,531,872,896]" italics="true" pageId="14" pageNumber="15">Leptochelia evansi</emphasis>
</taxonomicName>
<emphasis id="F7E9637CFFCF9055442DFCDDFD96FC2D" bold="true" box="[537,599,872,896]" pageId="14" pageNumber="15">
<taxonomicNameLabel id="ECDADE07FFCF9055442DFCDDFD96FC2D" box="[537,599,872,896]" pageId="14" pageNumber="15" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
belongs to a well-defined group of
<taxonomicName id="029DC4EDFFCF905545D7FCDDFBA9FC2D" box="[995,1128,872,896]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="genus">
<emphasis id="F7E9637CFFCF905545D7FCDDFBA9FC2D" box="[995,1128,872,896]" italics="true" pageId="14" pageNumber="15">Leptochelia</emphasis>
</taxonomicName>
with males possessing chelipeds that are long, slender and chelate—a group referred to by
<bibRefCitation id="A10CC29FFFCF9055455EFC38FC34FC09" author="Lang" box="[874,1013,908,933]" pageId="14" pageNumber="15" refString="Lang, K. (1973) Taxonomische und phylogenetische Untersuchungen uber die Tanaidaceen (Crustacea). 8. Die Gattungen Leptochelia Dana, Paratanais Dana, Heterotanais G. O. Sars und Nototanais Richardson. Dazu eininge Bemerkungen uber die Monokonophora und ein Nachtrag. Zoologica Scripta, 2, 197 - 229." type="journal article" year="1973">Lang (1973)</bibRefCitation>
as
<taxonomicName id="029DC4EDFFCF9055422FFC39FB5EFC09" box="[1051,1183,908,932]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="genus">
<emphasis id="F7E9637CFFCF9055422FFC39FB5EFC09" box="[1051,1183,908,932]" italics="true" pageId="14" pageNumber="15">Leptochelia</emphasis>
</taxonomicName>
group 1, and by
<bibRefCitation id="A10CC29FFFCF9055436AFC38FED2FC6A" author="Bamber" pageId="14" pageNumber="15" refString="Bamber, R. N. (2005) The tanaidaceans (Arthropoda: Crustacea: Peracarida: Tanaidacea) of Esperance, Western Australia, Australia. In: Wells, F. E., Walker, D. I. &amp; Kendrick, G. A. (Eds.), The Marine Flora and Fauna of Esperance, Western Australia. Western Australian Museum, Perth, pp. 613 - 728." type="book chapter" year="2005">Bamber (2005)</bibRefCitation>
as
<taxonomicName id="029DC4EDFFCF90554771FC05FDE5FC65" box="[325,548,944,968]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="minuta">
<emphasis id="F7E9637CFFCF90554771FC05FDE5FC65" box="[325,548,944,968]" italics="true" pageId="14" pageNumber="15">Leptochelia minuta</emphasis>
</taxonomicName>
aggregate. This group includes
<taxonomicName id="029DC4EDFFCF90554598FC04FAD3FC6A" authority="Kossman, 1880" authorityName="Kossman" authorityYear="1880" box="[940,1298,943,968]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="erythraea">
<emphasis id="F7E9637CFFCF90554598FC04FBFDFC65" box="[940,1084,944,968]" italics="true" pageId="14" pageNumber="15">L. erythraea</emphasis>
(Kossman, 1880)
</taxonomicName>
,
<taxonomicName id="029DC4EDFFCF90554312FC04FE94FC41" authority="Stebbing, 1896" authorityName="Stebbing" authorityYear="1896" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="forresti">
<emphasis id="F7E9637CFFCF90554312FC04FA5DFC65" box="[1318,1436,944,968]" italics="true" pageId="14" pageNumber="15">L. forresti</emphasis>
(Stebbing, 1896)
</taxonomicName>
,
<taxonomicName id="029DC4EDFFCF90554751FC60FD7AFC41" authority="Lang, 1973" authorityName="Lang" authorityYear="1973" box="[357,699,980,1004]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="longichelipes">
<emphasis id="F7E9637CFFCF90554751FC60FDDBFC41" box="[357,538,980,1004]" italics="true" pageId="14" pageNumber="15">L. longichelipes</emphasis>
(
<bibRefCitation id="A10CC29FFFCF90554418FC61FD73FC41" author="Lang" box="[556,690,980,1004]" pageId="14" pageNumber="15" refString="Lang, K. (1973) Taxonomische und phylogenetische Untersuchungen uber die Tanaidaceen (Crustacea). 8. Die Gattungen Leptochelia Dana, Paratanais Dana, Heterotanais G. O. Sars und Nototanais Richardson. Dazu eininge Bemerkungen uber die Monokonophora und ein Nachtrag. Zoologica Scripta, 2, 197 - 229." type="journal article" year="1973">Lang, 1973</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="029DC4EDFFCF905544FDFC60FC3AFC41" authority="Shiino, 1963" authorityName="Shiino" authorityYear="1963" box="[713,1019,980,1004]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="longimana">
<emphasis id="F7E9637CFFCF905544FDFC60FCA0FC41" box="[713,865,980,1004]" italics="true" pageId="14" pageNumber="15">L. longimana</emphasis>
<bibRefCitation id="A10CC29FFFCF9055455EFC61FC3AFC41" author="Shiino" box="[874,1019,980,1004]" pageId="14" pageNumber="15" refString="Shiino, S. M. (1963) Tanaidacea collected by the Naga Expedition in the Bay of Nha-Trang, South Viet-Nam. Report of the Faculty of Fisheries, Prefectural University of Mie, 4, 437 - 507." type="journal article" year="1963">Shiino, 1963</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="029DC4EDFFCF90554238FC60FAC7FC41" authority="Dana, 1849" authorityName="Dana" authorityYear="1849" box="[1036,1286,980,1004]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="minuta">
<emphasis id="F7E9637CFFCF90554238FC60FBBBFC41" box="[1036,1146,981,1004]" italics="true" pageId="14" pageNumber="15">L. minuta</emphasis>
Dana, 1849
</taxonomicName>
,
<taxonomicName id="029DC4EDFFCF90554323FC60FE83FBA2" authority="Stebbing, 1905" authorityName="Stebbing" authorityYear="1905" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="mirabilis">
<emphasis id="F7E9637CFFCF90554323FC60FA5DFC41" box="[1303,1436,980,1004]" italics="true" pageId="14" pageNumber="15">L. mirabilis</emphasis>
Stebbing, 1905
</taxonomicName>
and
<taxonomicName id="029DC4EDFFCF90554749FC4CFD50FBA2" authority="Bamber, 2005" authorityName="Bamber" authorityYear="2005" box="[381,657,1015,1040]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="vimesi">
<emphasis id="F7E9637CFFCF90554749FC4CFE25FBBD" box="[381,484,1017,1040]" italics="true" pageId="14" pageNumber="15">L. vimesi</emphasis>
<bibRefCitation id="A10CC29FFFCF905547D9FC42FD50FBA2" author="Bamber" box="[493,657,1015,1039]" pageId="14" pageNumber="15" refString="Bamber, R. N. (2005) The tanaidaceans (Arthropoda: Crustacea: Peracarida: Tanaidacea) of Esperance, Western Australia, Australia. In: Wells, F. E., Walker, D. I. &amp; Kendrick, G. A. (Eds.), The Marine Flora and Fauna of Esperance, Western Australia. Western Australian Museum, Perth, pp. 613 - 728." type="book chapter" year="2005">Bamber, 2005</bibRefCitation>
</taxonomicName>
. The smoothly curving fixed finger and dactylus of the male distinguish
<taxonomicName id="029DC4EDFFCF905546EEFBA8FE81FB99" box="[218,320,1053,1076]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="evansi">
<emphasis id="F7E9637CFFCF905546EEFBA8FE81FB99" box="[218,320,1053,1076]" italics="true" pageId="14" pageNumber="15">L. evansi</emphasis>
</taxonomicName>
from others in the group.
<emphasis id="F7E9637CFFCF90554450FBA9FBC0FB99" box="[612,1025,1052,1076]" italics="true" pageId="14" pageNumber="15">
<taxonomicName id="029DC4EDFFCF90554450FBA9FC82FB99" box="[612,835,1052,1076]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="forresti">Leptochelia forresti</taxonomicName>
,
<taxonomicName id="029DC4EDFFCF9055457BFBA8FBC0FB99" box="[847,1025,1052,1076]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="longichelipes">L. longichelipes</taxonomicName>
</emphasis>
and
<taxonomicName id="029DC4EDFFCF9055420CFBA8FB0CFB99" box="[1080,1229,1052,1076]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="longimana">
<emphasis id="F7E9637CFFCF9055420CFBA8FB0CFB99" box="[1080,1229,1052,1076]" italics="true" pageId="14" pageNumber="15">L. longimana</emphasis>
</taxonomicName>
all possess a male cheliped with a fixed finger that has a turning point in convexity (apophysis) about one-third distance to end (see
<bibRefCitation id="A10CC29FFFCF905546A3FBD1FEE2FBD1" author="Shiino" box="[151,291,1124,1148]" pageId="14" pageNumber="15" refString="Shiino, S. M. (1963) Tanaidacea collected by the Naga Expedition in the Bay of Nha-Trang, South Viet-Nam. Report of the Faculty of Fisheries, Prefectural University of Mie, 4, 437 - 507." type="journal article" year="1963">Shiino 1963</bibRefCitation>
;
<bibRefCitation id="A10CC29FFFCF90554704FBD0FE6CFBD1" author="Lang" box="[304,429,1124,1149]" pageId="14" pageNumber="15" refString="Lang, K. (1973) Taxonomische und phylogenetische Untersuchungen uber die Tanaidaceen (Crustacea). 8. Die Gattungen Leptochelia Dana, Paratanais Dana, Heterotanais G. O. Sars und Nototanais Richardson. Dazu eininge Bemerkungen uber die Monokonophora und ein Nachtrag. Zoologica Scripta, 2, 197 - 229." type="journal article" year="1973">Lang 1973</bibRefCitation>
), rather than smoothly curved as in
<taxonomicName id="029DC4EDFFCF90554572FBD0FC6AFBD1" box="[838,939,1125,1148]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="evansi">
<emphasis id="F7E9637CFFCF90554572FBD0FC6AFBD1" box="[838,939,1125,1148]" italics="true" pageId="14" pageNumber="15">L. evansi</emphasis>
</taxonomicName>
. The chelipeds of
<taxonomicName id="029DC4EDFFCF905542B4FBD1FAB0FBD1" box="[1152,1393,1124,1148]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="mirabilis">
<emphasis id="F7E9637CFFCF905542B4FBD1FAB0FBD1" box="[1152,1393,1124,1148]" italics="true" pageId="14" pageNumber="15">Leptochelia mirabilis</emphasis>
</taxonomicName>
are about twice as long as the body (
<bibRefCitation id="A10CC29FFFCF90554437FB3DFD52FB0D" author="Brown" box="[515,659,1160,1184]" pageId="14" pageNumber="15" refString="Brown, A. C. (1957) A revision of the genus Leptochelia (Crustacea: Tanaidacea) in southern African waters. Annals and Magazine of Natural History, 12 (10), 401 - 408." type="journal article" year="1957">Brown 1957</bibRefCitation>
), and both this species and
<taxonomicName id="029DC4EDFFCF905545F1FB3CFBF0FB0D" box="[965,1073,1161,1184]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="minuta">
<emphasis id="F7E9637CFFCF905545F1FB3CFBF0FB0D" box="[965,1073,1161,1184]" italics="true" pageId="14" pageNumber="15">L. minuta</emphasis>
</taxonomicName>
possess a protuberant process at the distal end of the inner margin of the fixed finger (
<bibRefCitation id="A10CC29FFFCF905544D8FB19FC57FB69" author="Larwood" box="[748,918,1196,1220]" pageId="14" pageNumber="15" refString="Larwood, H. J. (1954) Crustacea Tanaidacea and Isopoda from Suez Canal. Annals and Magazine of Natural History, 12 (7), 561 - 577." type="journal article" year="1954">Larwood 1954</bibRefCitation>
).
<taxonomicName id="029DC4EDFFCF9055459EFB19FB63FB69" box="[938,1186,1196,1220]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="erythraea">
<emphasis id="F7E9637CFFCF9055459EFB19FB63FB69" box="[938,1186,1196,1220]" italics="true" pageId="14" pageNumber="15">Leptochelia erythraea</emphasis>
</taxonomicName>
differs from
<taxonomicName id="029DC4EDFFCF90554302FB18FA5AFB69" box="[1334,1435,1197,1220]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="evansi">
<emphasis id="F7E9637CFFCF90554302FB18FA5AFB69" box="[1334,1435,1197,1220]" italics="true" pageId="14" pageNumber="15">L. evansi</emphasis>
</taxonomicName>
in
<emphasis id="F7E9637CFFCF90554681FB64FEDFFB45" box="[181,286,1232,1256]" italics="true" pageId="14" pageNumber="15">inter alia</emphasis>
having an antennule article-3 that is more than half (cf. about one-sixth) the length of article-2 (
<bibRefCitation id="A10CC29FFFCF9055435EFB65FED8FAA1" author="Larwood" pageId="14" pageNumber="15" refString="Larwood, H. J. (1954) Crustacea Tanaidacea and Isopoda from Suez Canal. Annals and Magazine of Natural History, 12 (7), 561 - 577." type="journal article" year="1954">Larwood 1954</bibRefCitation>
).
</paragraph>
<paragraph id="C522BF6EFFCF905546FDFAADFC2DFA31" blockId="14.[151,1436,151,1436]" pageId="14" pageNumber="15">
The only previously-known Australian species in this group,
<taxonomicName id="029DC4EDFFCF9055454EFAACFC21FA9D" box="[890,992,1305,1328]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="vimesi">
<emphasis id="F7E9637CFFCF9055454EFAACFC21FA9D" box="[890,992,1305,1328]" italics="true" pageId="14" pageNumber="15">L. vimesi</emphasis>
</taxonomicName>
from Albany, Western
<collectingCountry id="BD8AFFFEFFCF905542D2FAADFA8CFA9D" box="[1254,1357,1304,1328]" name="Australia" pageId="14" pageNumber="15">Australia</collectingCountry>
(
<bibRefCitation id="A10CC29FFFCF90554368FAADFF3EFAF9" author="Bamber" pageId="14" pageNumber="15" refString="Bamber, R. N. (2005) The tanaidaceans (Arthropoda: Crustacea: Peracarida: Tanaidacea) of Esperance, Western Australia, Australia. In: Wells, F. E., Walker, D. I. &amp; Kendrick, G. A. (Eds.), The Marine Flora and Fauna of Esperance, Western Australia. Western Australian Museum, Perth, pp. 613 - 728." type="book chapter" year="2005">Bamber 2005</bibRefCitation>
), possesses prominent hyposphenia below pereonites 24. It also differs from
<taxonomicName id="029DC4EDFFCF905542B4FA88FB26FAF9" box="[1152,1255,1341,1364]" class="Malacostraca" family="Leptocheliidae" genus="Leptochelia" kingdom="Animalia" order="Tanaidacea" pageId="14" pageNumber="15" phylum="Arthropoda" rank="species" species="evansi">
<emphasis id="F7E9637CFFCF905542B4FA88FB26FAF9" box="[1152,1255,1341,1364]" italics="true" pageId="14" pageNumber="15">L. evansi</emphasis>
</taxonomicName>
in possessing a longer antennule (three-quarters body length), cheliped dactylus with low apophysis on inner margin, and uropod with two-articled exopod and six-articled endopod in well-developed males.
</paragraph>
</subSubSection>
</treatment>
</document>