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<document id="A8EEADC434EC9A92E59039DF92D37A57" ID-DOI="10.5281/zenodo.193489" ID-GBIF-Dataset="7975c079-5a3e-47f5-83b4-b47524d1298c" ID-ISSN="1175-5326" ID-Zenodo-Dep="193489" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460146994407" checkinUser="plazi" docAuthor="Lin, Tomoyuki Komai Feng-Jiau &amp; Chan, Tin-Yam" docDate="2010" docId="038C87AC5E4FFFA443E0CCD453BACEBD" docLanguage="en" docName="zt02352p028.pdf" docOrigin="Zootaxa 2352" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Ambiaxius propinquus Lin &amp; Chan, 2010, n. sp." docType="treatment" docVersion="7" lastPageNumber="13" masterDocId="FFB5FFD45E48FFA84377CA2B5178CE6A" masterDocTitle="Five new species of Axiidae (Crustacea: Decapoda: Axiidea) from deep-water off Taiwan, with description of a new genus" masterLastPageNumber="28" masterPageNumber="1" pageNumber="8" updateTime="1698235478488" updateUser="plazi">
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<mods:title id="71DD92594B87C3DE660BCE67D848F70C">Five new species of Axiidae (Crustacea: Decapoda: Axiidea) from deep-water off Taiwan, with description of a new genus</mods:title>
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<mods:namePart id="54A19F29AEBAAC22159098F4E02126CF">Lin, Tomoyuki Komai Feng-Jiau</mods:namePart>
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<mods:namePart id="7A9E0AF9436598C3EA6BFCB78E2E996A">Chan, Tin-Yam</mods:namePart>
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<mods:title id="95D87F033B566E2EAD3D9251C728213A">Zootaxa</mods:title>
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<mods:date id="D618D4472B9CB47D5DECDB2DAF123718">2010</mods:date>
<mods:detail id="5608FBD779D9ED799E40766E5CDC0B84" type="volume">
<mods:number id="12FB698E43A3D07E0E7DCE9E8A6B8BEE">2352</mods:number>
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<mods:classification id="4B2F13BD7B164A9BDBF963A1A4FAD9CC">journal article</mods:classification>
<mods:identifier id="901147DA9198B284240AF78D2735FA9C" type="DOI">10.5281/zenodo.193489</mods:identifier>
<mods:identifier id="BA70A4B9EEFACD08408B652E58EA5EB5" type="GBIF-Dataset">7975c079-5a3e-47f5-83b4-b47524d1298c</mods:identifier>
<mods:identifier id="B14DE50111C1EFE18D2E8E439F26EED4" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="AAF50861E595AE5D7B4A0278B18C3DEE" type="Zenodo-Dep">193489</mods:identifier>
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<treatment id="038C87AC5E4FFFA443E0CCD453BACEBD" ID-DOI="http://doi.org/10.5281/zenodo.6211753" ID-GBIF-Taxon="124955948" ID-Zenodo-Dep="6211753" LSID="urn:lsid:plazi:treatment:038C87AC5E4FFFA443E0CCD453BACEBD" httpUri="http://treatment.plazi.org/id/038C87AC5E4FFFA443E0CCD453BACEBD" lastPageId="12" lastPageNumber="13" pageId="7" pageNumber="8">
<subSubSection id="C33F65315E4FFFAF43E0CCD4502FC955" pageId="7" pageNumber="8" type="nomenclature">
<paragraph id="8B9A36BA5E4FFFAF43E0CCD4508CC973" blockId="7.[151,500,1791,1855]" box="[151,500,1791,1817]" pageId="7" pageNumber="8">
<heading id="D0D281D65E4FFFAF43E0CCD4508CC973" bold="true" box="[151,500,1791,1817]" fontSize="11" level="1" pageId="7" pageNumber="8" reason="1">
<emphasis id="B951EAA85E4FFFAF43E0CCD4508CC973" bold="true" box="[151,500,1791,1817]" pageId="7" pageNumber="8">
<taxonomicName id="4C254D395E4FFFAF43E0CCD450D2C973" box="[151,426,1791,1817]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="propinquus" status="sp. nov.">
<emphasis id="B951EAA85E4FFFAF43E0CCD450D2C973" bold="true" box="[151,426,1791,1817]" italics="true" pageId="7" pageNumber="8">Ambiaxius propinquus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26257D35E4FFFAF42C5CCD4508CC973" box="[434,500,1791,1817]" pageId="7" pageNumber="8" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8B9A36BA5E4FFFAF43E0CD0E502FC955" blockId="7.[151,500,1791,1855]" box="[151,343,1829,1855]" pageId="7" pageNumber="8">
(
<figureCitation id="131E2A3F5E4FFFAF43E8CD0E518BC955" box="[159,243,1829,1855]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="7" pageNumber="8">Figs. 4</figureCitation>
, 5, 13C)
</paragraph>
</subSubSection>
<subSubSection id="C33F65315E4FFFAF43E0CD44523BC9D8" pageId="7" pageNumber="8" type="materials_examined">
<paragraph id="8B9A36BA5E4FFFAF43E0CD44523BC9D8" blockId="7.[151,1437,1903,1970]" pageId="7" pageNumber="8">
<emphasis id="B951EAA85E4FFFAF43E0CD44502EC9E3" bold="true" box="[151,342,1903,1929]" pageId="7" pageNumber="8">
<typeStatus id="549E88185E4FFFAF43E0CD4451A0C9E3" box="[151,216,1903,1929]" pageId="7" pageNumber="8">Type</typeStatus>
material
</emphasis>
.
<typeStatus id="549E88185E4FFFAF421CCD5B5091C9E0" box="[363,489,1904,1930]" pageId="7" pageNumber="8" type="holotype">Holotype</typeStatus>
: hermaphrodite (cl
<quantity id="4CDD9B5F5E4FFFAF419DCD5B521AC9E0" box="[746,866,1904,1930]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="7" pageNumber="8" unit="mm" value="11.8">11.8 mm</quantity>
),
<collectingCountry id="F332762A5E4FFFAF400DCD5B528CC9E0" box="[890,1012,1904,1930]" name="Taiwan" pageId="7" pageNumber="8">TAIWAN</collectingCountry>
2001, stn CD 129,
<date id="FF9B107A5E4FFFAF4780CD5B54E0C9E0" box="[1271,1432,1904,1930]" pageId="7" pageNumber="8" value="2001-05-06">6 May 2001</date>
,
<geoCoordinate id="EE11507D5E4FFFAF43E0CDB35067C9D8" box="[151,287,1941,1970]" direction="north" orientation="latitude" pageId="7" pageNumber="8" precision="9" value="22.9355">22o56.13’N</geoCoordinate>
,
<geoCoordinate id="EE11507D5E4FFFAF425CCDB350CDC9D8" box="[299,437,1941,1970]" direction="east" orientation="longitude" pageId="7" pageNumber="8" precision="9" value="122.0615">122 o3.69’E</geoCoordinate>
,
<quantity id="4CDD9B5F5E4FFFAF42B6CDB3531EC9D8" box="[449,614,1944,1970]" metricMagnitude="3" metricUnit="m" metricValue="1.273" metricValueMax="1.275" metricValueMin="1.271" pageId="7" pageNumber="8" unit="m" value="1273.0" valueMax="1275.0" valueMin="1271.0">1271–1275 m</quantity>
, (
<collectionCode id="ED34AE7F5E4FFFAF410BCDB353B5C9D8" box="[636,717,1944,1970]" httpUri="http://grbio.org/cool/be15-j6k8" name="Institute of Marine Biology, National Taiwan Ocean University" pageId="7" pageNumber="8">NTOU</collectionCode>
<accessionNumber id="9476AB595E4FFFAF41A3CDB3524BC9D8" box="[724,819,1944,1970]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A00044" pageId="7" pageNumber="8" type="EnaNcbi">A00044</accessionNumber>
).
</paragraph>
</subSubSection>
<caption id="DF5A66325E40FFA043E0CD10537BC999" httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="8" pageNumber="9" targetBox="[220,1355,184,1850]" targetPageId="8">
<paragraph id="8B9A36BA5E40FFA043E0CD10537BC999" blockId="8.[151,1437,1851,2035]" pageId="8" pageNumber="9">
<emphasis id="B951EAA85E40FFA043E0CD105065C939" bold="true" box="[151,285,1851,1875]" pageId="8" pageNumber="9">FIGURE 4.</emphasis>
<taxonomicName id="4C254D395E40FFA04253CD175362C939" box="[292,538,1852,1875]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="propinquus" status="sp. nov.">
<emphasis id="B951EAA85E40FFA04253CD175362C939" box="[292,538,1852,1875]" italics="true" pageId="8" pageNumber="9">Ambiaxius propinquus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26257D35E40FFA04156CD175325C939" box="[545,605,1852,1875]" pageId="8" pageNumber="9" rank="species">n. sp.</taxonomicNameLabel>
, holotype, hermaphrodite (cl 11.8 mm), NTOU
<accessionNumber id="9476AB595E40FFA04719CD1755B2C939" box="[1134,1226,1852,1875]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/A00044" pageId="8" pageNumber="9" type="EnaNcbi">A00044</accessionNumber>
. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm.
</paragraph>
</caption>
<subSubSection id="C33F65315E41FFA243B1CABC50FBCDF6" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10" type="description">
<paragraph id="8B9A36BA5E41FFA143B1CABC53BFCFB6" blockId="9.[151,1437,151,2007]" pageId="9" pageNumber="10">
<emphasis id="B951EAA85E41FFA143B1CABC5094CEDB" bold="true" box="[198,492,151,177]" pageId="9" pageNumber="10">
Description of
<typeStatus id="549E88185E41FFA142F7CABC5094CEDB" box="[384,492,151,177]" pageId="9" pageNumber="10" type="holotype">holotype</typeStatus>
</emphasis>
. Rostrum (
<figureCitation id="131E2A3F5E41FFA14107CAB353CFCED8" box="[624,695,152,178]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
A–C) 0.35 as long as carapace, slender, upturned, extending to midlength of fourth segment of antennal peduncle, armed with 1 (left) or 2 (right) tiny lateral spines, continuous with base of supraocular spine; dorsal surface channeled medially. Carapace (
<figureCitation id="131E2A3F5E41FFA147C1CAC95584CE96" box="[1206,1276,226,252]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
A–C) smooth except for slight rugosity on branchiostegite; supraocular spines prominent; gastric region convex, sloping to rostral base; lateral gastric carina very short, limited to base of supraocular spine; submedian gastric carina blunt, slightly rugose anteriorly, gradually becoming obsolete posteriorly; median gastric carina also blunt, unarmed, becoming obsolete gradually, not reaching cervical groove; cervical groove very shallow, but extending to pterygostomial region; very shallow branchial groove also present; no postcervical groove on dorsal midline; pterygostomial margin rounded.
</paragraph>
<paragraph id="8B9A36BA5E41FFA143B1CBC35188CC4D" blockId="9.[151,1437,151,2007]" pageId="9" pageNumber="10">
Thoracic sternum (
<figureCitation id="131E2A3F5E41FFA142DDCBC3508ACC68" box="[426,498,488,514]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
D) with shield on seventh somite weakly delimited, medially divided by deep groove.
</paragraph>
<paragraph id="8B9A36BA5E41FFA143B1C8195403CC88" blockId="9.[151,1437,151,2007]" pageId="9" pageNumber="10">
First abdominal pleuron (
<figureCitation id="131E2A3F5E41FFA14283C8195344CC26" box="[500,572,562,588]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
E) short, produced ventrally as projection with narrowly rounded ventral margin; second pleuron broad, anteroventrally rounded, lateral surface shallowly depressed; third to fifth pleura rounded; sixth pleura also rounded. Telson (
<figureCitation id="131E2A3F5E41FFA14188C856523FCCFD" box="[767,839,637,663]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
F) 1.8 times longer than wide, widest proximally, then approximately parallel-sided, lateral margin unarmed, posterior margin strongly convex without posteromedian spine, posterolateral region unarmed; dorsal face without spines on obsolete oblique ridges.
</paragraph>
<paragraph id="8B9A36BA5E41FFA143B1C8C6526ECA66" blockId="9.[151,1437,151,2007]" pageId="9" pageNumber="10">
Eyestalks (
<figureCitation id="131E2A3F5E41FFA1423DC8C650EBCD6D" box="[330,403,749,775]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
A, C) very short, immovably attached to cephalothorax, contiguous, hardly visible in dorsal view; cornea depressed dorsoventrally, unpigmented, unfaceted, division between cornea and eyestalk unclear. Antennular peduncle (
<figureCitation id="131E2A3F5E41FFA1417FC9135328CD38" box="[520,592,824,850]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
A, C) slightly falling short of midlength of fourth segment of antennal peduncle; first segment with small spine on statocyst lobe distolaterally; flagella missing. Antennal peduncle (
<figureCitation id="131E2A3F5E41FFA143D7C9A95197CDF6" box="[160,239,898,924]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="9" pageNumber="10">Fig. 4</figureCitation>
A, C) with first segment unarmed; second segment with very small dorsolateral distal spine; scaphocerite small, directed slightly upwards, less than half length of second segment; third segment with sharp spine on distomesial angle; fourth segment about 1.8 times longer than second segment; fifth segment about 0.3 length of fourth segment; flagellum missing.
</paragraph>
<paragraph id="8B9A36BA5E41FFA143B1CE3350B9CAC8" blockId="9.[151,1437,151,2007]" pageId="9" pageNumber="10">Third maxilliped (Fig. 5A) moderately slender; coxa with 1 ventromesial spinule; basis also with very small ventromesial spinule; ischium unarmed on ventral margin; crista dentata with about 30 small, corneoustipped teeth; merus with 1 small subdistal spine on ventral margin; carpus unarmed; exopod with multiarticulate flagellum.</paragraph>
<paragraph id="8B9A36BA5E41FFA143B1CE865192C8C6" blockId="9.[151,1437,151,2007]" pageId="9" pageNumber="10">Only left cheliped preserved. Cheliped (Fig. 5B, C) elongate. Coxa bearing minute denticle on ventrodistal margin. Basis unarmed. Ischium with 2 minute denticles on ventral margin medially. Merus 4.9 times longer than high, with 1 subdistal spine (but fairly close to distal margin) on dorsal margin, unarmed on ventral margin. Carpus about 2.3 times longer than high, unarmed. Chela subequal in length to carapace and about 4.0 times longer than high (dorsal spine excluded), ventral margin faintly sinuous. Palm slightly becoming higher distally, 2.1 times longer than high, with 1 subdistal spine; lateral surface slightly convex, smooth, with few tufts of stiff setae, no carina along ventral margin; mesial face also smooth, with row of long stiff setae along ventral margin extending onto fixed finger. Fixed finger (Fig. 5D) smooth on lateral surface, with row of tufts of setae medially; mesial face faintly elevated along midline; cutting edge with row of very small triangular teeth interspersing 1 to 4 minute denticles in proximal 0.7 and row of tiny denticles in distal 0.3. Dactylus subequal in length to palm, with rows of tufts of long stiff setae on lateral and mesial faces; mesial face slightly elevated along midline; cutting edge thin, sharply edge, with row of minute denticles, tip crossing with that of fixed finger when closed; small hiatus formed proximally between fingers when dactylus closed.</paragraph>
<paragraph id="8B9A36BA5E41FFA243B1CC9350F2CF48" blockId="9.[151,1437,151,2007]" lastBlockId="10.[151,1437,152,2007]" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
Second pereopod (Fig. 5E) slender, unarmed on ischium to carpus; carpus about 0.6 length of chela; chela wider than carpus, with tufts of long setae on margins, fingers slightly longer than palm, each with row of minute corneous spinules on cutting edge. Third pereopod missing. Fourth pereopod (Fig. 5F) somewhat elongate, unarmed on ischium to carpus; propodus distally with cluster consisting of stiff setae and few stout setulose setae located distally (Fig. 5G, H), possibly representing grooming apparatus, but otherwise nearly smooth on lateral surface; dactylus (Fig. 5G, H) slender, about 0.3 times as long as propodus, slightly twisted, bearing numerous tufts of stiff setae along extensor and flexor margins. Fifth pereopod (Fig.
<date id="FF9B107A5E41FFA14631CDB3541AC9D8" box="[1350,1378,1944,1970]" pageId="9" pageNumber="10">5I</date>
) not subchelate, unarmed on ischium to carpus; propodus distally with grooming apparatus consisting of cluster of short to long setae, extending onto lateral and mesial faces, and transverse row of short, setulose, stout setae on ventrodistal margin (Fig. 5J, K); dactylus (Fig. 5J, K) very slender, elongate, about 0.4 times as long as propodus, flexor surface excavated near base, proximomesial margin slightly expanded, dorsal surface with numerous stiff setae.
</paragraph>
<paragraph id="8B9A36BA5E42FFA243B1CB0652A0CF2D" blockId="10.[151,1437,152,2007]" box="[198,984,301,327]" pageId="10" pageNumber="11">
Gonopores present on coxae of third and fifth pereopods (
<figureCitation id="131E2A3F5E42FFA2401BCB0652CBCF2D" box="[876,947,301,327]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="10" pageNumber="11">Fig. 4</figureCitation>
D).
</paragraph>
<paragraph id="8B9A36BA5E42FFA243B1CB795474CFF8" blockId="10.[151,1437,152,2007]" pageId="10" pageNumber="11">Pleurobranchs absent. Two arthrobranchs above bases of third maxilliped to fourth pereopod. Podobranchs on third maxilliped to third pereopod slender, simple, without trace of gill elements.</paragraph>
<paragraph id="8B9A36BA5E42FFA243B1CBB650FFCC88" blockId="10.[151,1437,152,2007]" pageId="10" pageNumber="11">First pleopod (Fig. 5L) with first segment (protopod) strongly flattened, slightly twisted; second segment (ramus) about 0.3 length of first segment, rounded triangular, leaf-like, small proximomesial protrusion representing appendix interna, terminally divided into two lobes by deep V-shaped incision. Second pleopod (Fig. 5M) with inner ramus consisting of elongate, somewhat twisted first segment of endopod while distal segment of endopod fused with appendix masculina (= distal fused segment); thumb-like appendix interna located at proximomesial margin of distal fused segment; distal fused segment tapering distally, boot-like in shape, distinctly shorter than first segment of endopod, with double row of spiniform setae on strongly sinuous mesial margin and with several terminal setae. Third to fifth pleopods very slender, without appendices internae.</paragraph>
<paragraph id="8B9A36BA5E42FFA243B1C8C6533ECD38" blockId="10.[151,1437,152,2007]" pageId="10" pageNumber="11">
Uropodal endopod (
<figureCitation id="131E2A3F5E42FFA242CDC8C6537CCD6D" box="[442,516,749,775]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="10" pageNumber="11">Fig. 4</figureCitation>
G) 2.4 times as long as wide, without lateral spines, dorsal ridge unarmed. Uropodal exopod (
<figureCitation id="131E2A3F5E42FFA2420FC93950B8CD46" box="[376,448,786,812]" captionStart="FIGURE 4" captionStartId="8.[151,256,1851,1875]" captionTargetBox="[220,1355,184,1850]" captionTargetId="figure@8.[203,1389,160,1855]" captionTargetPageId="8" captionText="FIGURE 4. Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00044. A, anterior part of carapace and cephalic appendages, dorsal view; B, carapace and cephalic appendages, lateral view; C, anterior part of carapace and cephalic appendages, lateral view; D, sixth to eighth thoracic sternites and coxae of third to fifth pereopods, ventral view (setae omitted); E, posterior part of thorax and abdomen, lateral view (damaged at second abdominal somite; setae omitted); F, telson, dorsal view (setae partially omitted); G, left uropod (setae omitted). Scale bars: B, E = 5 mm; A, C, F, G = 2 m; D = 1 mm." httpUri="https://zenodo.org/record/193493/files/figure.png" pageId="10" pageNumber="11">Fig. 4</figureCitation>
G) without lateral spines, posterolateral angle with 1 spine, but no spiniform setae apparent; transverse suture unarmed.
</paragraph>
<paragraph id="8B9A36BA5E42FFA243B1C97650FBCDF6" blockId="10.[151,1437,152,2007]" pageId="10" pageNumber="11">
<emphasis id="B951EAA85E42FFA243B1C9765035CD1D" bold="true" box="[198,333,861,887]" pageId="10" pageNumber="11">Coloration</emphasis>
. Body generally ivory-whitish, with anterior part of carapace including eyes somewhat dark greenish (
<figureCitation id="131E2A3F5E42FFA2427DC9A95027CDF6" box="[266,351,898,924]" captionStart="FIGURE 13. A" captionStartId="25.[151,260,1531,1555]" captionTargetBox="[151,1434,293,1507]" captionTargetId="figure@25.[151,1436,291,1507]" captionTargetPageId="25" captionText="FIGURE 13. A, Formosaxius dorsum n. gen., n. sp., holotype, female (cl about 12.0 mm), NTOU A 01087; B, Formosaxius dorsum n. gen., n. sp., paratype, female (cl 12.6 mm), NTOU A 00023; C, Ambiaxius propinquus n. sp., holotype, hermaphrodite (cl 11.8 mm), NTOU A 00110; D, Calastacus formosus n. sp., holotype, hermaphrodite (cl 7.6 mm), NTOU A 00083; E, Eiconaxius rubrirostris n. sp., holotype, male (cl 5.4 mm), NTOU A 00114; F, Eiconaxius kensleyi n. sp., holotype, male (cl 3.1 mm), NTOU A 00111." httpUri="https://zenodo.org/record/193501/files/figure.png" pageId="10" pageNumber="11">Fig. 13</figureCitation>
C).
</paragraph>
</subSubSection>
<subSubSection id="C33F65315E42FFA243B1C98C5500CDA8" box="[198,1144,935,962]" pageId="10" pageNumber="11" type="distribution">
<paragraph id="8B9A36BA5E42FFA243B1C98C5500CDA8" blockId="10.[151,1437,152,2007]" box="[198,1144,935,962]" pageId="10" pageNumber="11">
<emphasis id="B951EAA85E42FFA243B1C98C5027CDAB" bold="true" box="[198,351,935,961]" pageId="10" pageNumber="11">Distribution</emphasis>
. Known only from southeastern
<collectingCountry id="F332762A5E42FFA24196C983524DCDA8" box="[737,821,936,962]" name="Taiwan" pageId="10" pageNumber="11">Taiwan</collectingCountry>
at depths of
<quantity id="4CDD9B5F5E42FFA240B9C983550BCDA8" box="[974,1139,936,962]" metricMagnitude="3" metricUnit="m" metricValue="1.273" metricValueMax="1.275" metricValueMin="1.271" pageId="10" pageNumber="11" unit="m" value="1273.0" valueMax="1275.0" valueMin="1271.0">1271–1275 m</quantity>
.
</paragraph>
</subSubSection>
<subSubSection id="C33F65315E42FFA343B1C9E654FAC988" lastPageId="11" lastPageNumber="12" pageId="10" pageNumber="11" type="discussion">
<paragraph id="8B9A36BA5E42FFA243B1C9E6523DC89D" blockId="10.[151,1437,152,2007]" pageId="10" pageNumber="11">
<emphasis id="B951EAA85E42FFA243B1C9E65040CD8D" bold="true" box="[198,312,973,999]" pageId="10" pageNumber="11">Remarks</emphasis>
. The present specimen from
<collectingCountry id="F332762A5E42FFA241FBC9E6539ACD8D" box="[652,738,973,999]" name="Taiwan" pageId="10" pageNumber="11">Taiwan</collectingCountry>
is very similar to the respective
<typeStatus id="549E88185E42FFA2472AC9E655B7CD8D" box="[1117,1231,973,999]" pageId="10" pageNumber="11" type="holotype">holotypes</typeStatus>
of
<taxonomicName id="4C254D395E42FFA24781C9E65413CD8C" box="[1270,1387,973,998]" class="Malacostraca" family="Calocarididae" genus="Calocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E42FFA24781C9E65413CD8C" box="[1270,1387,973,998]" italics="true" pageId="10" pageNumber="11">A. alcocki</emphasis>
</taxonomicName>
and
<taxonomicName id="4C254D395E42FFA243E0C9D95049CA61" box="[151,305,1010,1035]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="franklinae">
<emphasis id="B951EAA85E42FFA243E0C9D95049CA61" box="[151,305,1010,1035]" italics="true" pageId="10" pageNumber="11">A. franklinae</emphasis>
</taxonomicName>
. However, it differs from the descriptions of the
<typeStatus id="549E88185E42FFA24005C9D952A0CA66" box="[882,984,1010,1036]" pageId="10" pageNumber="11" type="holotype">holotype</typeStatus>
of
<taxonomicName id="4C254D395E42FFA24777C9D955A1CA61" box="[1024,1241,1010,1035]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E42FFA24777C9D955A1CA61" box="[1024,1241,1010,1035]" italics="true" pageId="10" pageNumber="11">Ambiaxius alcocki</emphasis>
</taxonomicName>
from the Bay of Bengal in two points (
<bibRefCitation id="EFB44B4B5E42FFA242EBCE335336CA58" author="McArdle" box="[412,590,1048,1074]" pageId="10" pageNumber="27" refString="McArdle, A. F. (1900) Natural history notes from the Royal Indian Marine Survey Ship ' Investigator'. - Series III., No. 4. Some results of the dredging season 1899 - 1900. Annals and Magazine of Natural History, (7) 6, 471 - 478." type="journal article" year="1900">McArdle 1900</bibRefCitation>
; Alcock 1901). In the Taiwanese specimen, the postcervical carapace is rounded in the dorsal surface, whereas it was mentioned that the carapace was bluntly carinate along the midline in the
<typeStatus id="549E88185E42FFA24237CE4950D2CA16" box="[320,426,1122,1148]" pageId="10" pageNumber="11" type="holotype">holotype</typeStatus>
, clearly suggesting the presence of a postcervical carina on the carapace. In fact,
<bibRefCitation id="EFB44B4B5E42FFA2462CCE49519DCAC8" author="Sakai" lastPageId="10" lastPageNumber="28" pageId="10" pageNumber="27" refString="Sakai, K. (1995) A new record of the axiid, Ambiaxius alcocki (McArdle, 1900) (Crustacea, Anomura, Thalassinidea) from Suruga Bay, Japan. Bulletin of the National Science Museum, Ser. A (Zoology), 21, 79 - 86." type="journal article" year="1995">Sakai (1995)</bibRefCitation>
identified a Japanese specimen, which has a clearly delimited postcervical carina on the carapace, as
<taxonomicName id="4C254D395E42FFA246F4CEA35195CAAC" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E42FFA246F4CEA35195CAAC" italics="true" pageId="10" pageNumber="11">A. alcocki</emphasis>
</taxonomicName>
, although he later referred it to a new species,
<taxonomicName id="4C254D395E42FFA24051CE8652AFCAAC" box="[806,983,1197,1222]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="surugaensis">
<emphasis id="B951EAA85E42FFA24051CE8652AFCAAC" box="[806,983,1197,1222]" italics="true" pageId="10" pageNumber="11">A. surugaensis</emphasis>
</taxonomicName>
(cf.
<bibRefCitation id="EFB44B4B5E42FFA24766CE865586CAAD" author="Sakai" box="[1041,1278,1197,1223]" pageId="10" pageNumber="28" refString="Sakai, K. &amp; Ohta, S. (2005) Some thalassinid collections by R / V &quot; Hakuhou-Maru &quot; and R / V &quot; Tansei-Maru &quot;, University of Tokyo, in the Sulu Sea, Philippines, and in Sagami Bay and Suruga Bay, Japan, including two new species, one new genus, and one new family (Decapoda, Thalassinidea). Crustaceana, 78, 67 - 93." type="journal article" year="2005">Sakai &amp; Ohta 2005</bibRefCitation>
). The second point is the absence of an enlarged tooth on the cutting edge of the dactylus of the cheliped in the present specimen, which was said to be present in the
<typeStatus id="549E88185E42FFA24195CED3522CCB78" box="[738,852,1272,1298]" pageId="10" pageNumber="11" type="holotype">holotype</typeStatus>
. The significance of the second point is rather questionable, because only the left cheliped is preserved in the present specimen. However, the development of the postcervical carina on the carapace is considered to be species specific in
<taxonomicName id="4C254D395E42FFA24720CF6955CCCB36" box="[1111,1204,1346,1372]" class="Insecta" family="Axiidae" kingdom="Animalia" order="Lepidoptera" pageId="10" pageNumber="11" phylum="Arthropoda" rank="family">Axiidae</taxonomicName>
and
<taxonomicName id="4C254D395E42FFA24787CF6954E0CB36" box="[1264,1432,1346,1372]" class="Malacostraca" family="Calocarididae" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="family">Calocarididae</taxonomicName>
, and its absence alone seems to justify the separation of the Taiwanese specimen from
<taxonomicName id="4C254D395E42FFA247B4CF435447CBEB" box="[1219,1343,1384,1409]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E42FFA247B4CF435447CBEB" box="[1219,1343,1384,1409]" italics="true" pageId="10" pageNumber="11">A. alcocki</emphasis>
</taxonomicName>
. Direct comparison with the
<typeStatus id="549E88185E42FFA242F9CFA6508DCBCD" box="[398,501,1421,1447]" pageId="10" pageNumber="11" type="holotype">holotype</typeStatus>
likely will reveal further morphological differences. Moreover, the identities of
<taxonomicName id="4C254D395E42FFA243E0CF985074CBA6" box="[151,268,1459,1484]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E42FFA243E0CF985074CBA6" box="[151,268,1459,1484]" italics="true" pageId="10" pageNumber="11">A. alcocki</emphasis>
</taxonomicName>
reported from discrete localities such as
<collectingCountry id="F332762A5E42FFA2419ECF995207CBA6" box="[745,895,1458,1484]" name="South Africa" pageId="10" pageNumber="11">South Africa</collectingCountry>
and
<collectingCountry id="F332762A5E42FFA240C0CF995514CBA6" box="[951,1132,1458,1484]" name="New Caledonia" pageId="10" pageNumber="11">New Caledonia</collectingCountry>
(cf.
<bibRefCitation id="EFB44B4B5E42FFA247D5CF995435CBA6" author="Stebbing" box="[1186,1357,1458,1484]" pageId="10" pageNumber="28" refString="Stebbing, T. R. R. (1915) South African Crustacea, Part VIII. Annals of the South African Museum, 15, 57 - 104, pls. 13 - 25." type="journal article" year="1915">Stebbing 1915</bibRefCitation>
,
<bibRefCitation id="EFB44B4B5E42FFA2462ECF9954EFCBA6" author="Stebbing" box="[1369,1431,1458,1484]" pageId="10" pageNumber="28" refString="Stebbing, T. R. R. (1917) South African Crustacea, Part IX. Annals of the South African Museum, 17, 23 - 46, pls. 1 - 8." type="journal article" year="1917">1917</bibRefCitation>
;
<bibRefCitation id="EFB44B4B5E42FFA243E0CFF35047CB98" author="Barnard" box="[151,319,1496,1522]" pageId="10" pageNumber="27" refString="Barnard, K. H. (1950) Descriptive catalogue of South African decapod Crustacea (crabs and shrimps). Annals of the South African Museum, 38, 1 - 837." type="journal article" year="1950">Barnard 1950</bibRefCitation>
; Sakai &amp; de
<bibRefCitation id="EFB44B4B5E42FFA242ABCFF353B0CB98" author="Saint" box="[476,712,1496,1522]" pageId="10" pageNumber="28" refString="Sakai, K. &amp; 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">Saint Laurent 1989</bibRefCitation>
;
<bibRefCitation id="EFB44B4B5E42FFA241A2CFF352C7CB98" author="Sakai" box="[725,959,1496,1522]" lastPageId="10" lastPageNumber="28" pageId="10" pageNumber="27" refString="Sakai, K. (1995) A new record of the axiid, Ambiaxius alcocki (McArdle, 1900) (Crustacea, Anomura, Thalassinidea) from Suruga Bay, Japan. Bulletin of the National Science Museum, Ser. A (Zoology), 21, 79 - 86." type="journal article" year="1995">Sakai &amp; Ohta 1995</bibRefCitation>
) will need to be verified (e.g.,
<bibRefCitation id="EFB44B4B5E42FFA2464DCFF3519BC87D" author="Kensley" pageId="10" pageNumber="27" refString="Kensley, B. (1996 a) New species of Calocarididae from the Caribbean Sea and Gulf of Mexico (Crustacea: Decapoda: Thalassinidea). Bulletin of Marine Science, 59, 158 - 168." type="journal article" year="1996" yearSuffix="a">Kensley 1996a</bibRefCitation>
). The lack of the postcervical carina on the carapace aligns the Taiwanese specimen with
<taxonomicName id="4C254D395E42FFA2478BCFD654ECC87C" box="[1276,1428,1533,1558]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="franklinae">
<emphasis id="B951EAA85E42FFA2478BCFD654ECC87C" box="[1276,1428,1533,1558]" italics="true" pageId="10" pageNumber="11">A. franklinae</emphasis>
</taxonomicName>
. However, it differs from the latter by the shorter and less curved rostrum. In the Taiwanese specimen, the rostrum does not reach the distal end of the fourth segment of the antennal peduncle, whereas in the
<typeStatus id="549E88185E42FFA24642CC6354E3C808" box="[1333,1435,1608,1634]" pageId="10" pageNumber="11" type="holotype">holotype</typeStatus>
of
<taxonomicName id="4C254D395E42FFA243CECC465021C8EC" box="[185,345,1645,1670]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="franklinae">
<emphasis id="B951EAA85E42FFA243CECC465021C8EC" box="[185,345,1645,1670]" italics="true" pageId="10" pageNumber="11">A. franklinae</emphasis>
</taxonomicName>
it is longer, nearly reaching the distal end of the fifth segment of the antennal peduncle. Furthermore, the spiniform setae on the concave anterior margin of the boot-shaped appendix masculina of the second pleopod seem to be more numerous in the Taiwanese specimen than in
<taxonomicName id="4C254D395E42FFA24716CC935582C8BB" box="[1121,1274,1720,1745]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="franklinae">
<emphasis id="B951EAA85E42FFA24716CC935582C8BB" box="[1121,1274,1720,1745]" italics="true" pageId="10" pageNumber="11">A. franklinae</emphasis>
</taxonomicName>
. Therefore, it is concluded that the Taiwanese form is a separate species.
</paragraph>
<paragraph id="8B9A36BA5E42FFA243B1CD2953B6C9BD" blockId="10.[151,1437,152,2007]" pageId="10" pageNumber="11">
Another species of the genus,
<taxonomicName id="4C254D395E42FFA2415DCD285241C976" box="[554,825,1795,1820]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="surugaensis">
<emphasis id="B951EAA85E42FFA2415DCD285241C976" box="[554,825,1795,1820]" italics="true" pageId="10" pageNumber="11">Ambiaxius surugaensis</emphasis>
</taxonomicName>
, can be immediately distinguished from the present new species and the other two species by the arthrobranchs bearing rudimentary gill elements. In the other three species, the arthrobranchs are distinctly lamellate. The presence of the postcervical carina also distinguishes
<taxonomicName id="4C254D395E42FFA24240CD58509CC9E6" box="[311,484,1907,1932]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="surugaensis">
<emphasis id="B951EAA85E42FFA24240CD58509CC9E6" box="[311,484,1907,1932]" italics="true" pageId="10" pageNumber="11">A. surugaensis</emphasis>
</taxonomicName>
from
<taxonomicName id="4C254D395E42FFA2415CCD5853A8C9E6" box="[555,720,1907,1932]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="propinquus" status="sp. nov.">
<emphasis id="B951EAA85E42FFA2415CCD5853A8C9E6" box="[555,720,1907,1932]" italics="true" pageId="10" pageNumber="11">A. propinquus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26257D35E42FFA241A0CD59526EC9E6" box="[727,790,1906,1932]" pageId="10" pageNumber="11" rank="species">n. sp.</taxonomicNameLabel>
and
<taxonomicName id="4C254D395E42FFA24039CD58529FC9E6" box="[846,999,1907,1932]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="franklinae">
<emphasis id="B951EAA85E42FFA24039CD58529FC9E6" box="[846,999,1907,1932]" italics="true" pageId="10" pageNumber="11">A. franklinae</emphasis>
</taxonomicName>
. The much broader distal segment of the first pleopod is also characteristic to
<taxonomicName id="4C254D395E42FFA241FCCDB35246C9DB" box="[651,830,1944,1969]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="surugaensis">
<emphasis id="B951EAA85E42FFA241FCCDB35246C9DB" box="[651,830,1944,1969]" italics="true" pageId="10" pageNumber="11">A. surugaensis</emphasis>
</taxonomicName>
, although the detailed structure of the appendage remains unknown for the
<typeStatus id="549E88185E42FFA242B3CD965352C9BD" box="[452,554,1981,2007]" pageId="10" pageNumber="11" type="holotype">holotype</typeStatus>
of
<taxonomicName id="4C254D395E42FFA24126CD9653BFC9BC" box="[593,711,1981,2006]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="11" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E42FFA24126CD9653BFC9BC" box="[593,711,1981,2006]" italics="true" pageId="10" pageNumber="11">A. alcocki</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B9A36BA5E43FFA343E0CD6054FAC988" blockId="11.[151,1437,1867,2018]" pageId="11" pageNumber="12">
FIGURE 5.
<taxonomicName id="4C254D395E43FFA34254CD60535FC908" box="[291,551,1867,1890]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="12" phylum="Arthropoda" rank="species" species="propinquus" status="sp. nov.">
<emphasis id="B951EAA85E43FFA34254CD60535FC908" box="[291,551,1867,1890]" italics="true" pageId="11" pageNumber="12">Ambiaxius propinquus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26257D35E43FFA34158CD605316C908" box="[559,622,1867,1890]" pageId="11" pageNumber="12" rank="species">n. sp.</taxonomicNameLabel>
,
<typeStatus id="549E88185E43FFA34109CD60539BC908" box="[638,739,1867,1890]" pageId="11" pageNumber="12" type="holotype">holotype</typeStatus>
hermaphrodite (cl
<quantity id="4CDD9B5F5E43FFA340B4CD605554C908" box="[963,1068,1867,1890]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="11" pageNumber="12" unit="mm" value="11.8">11.8 mm</quantity>
), NTOU A0 0 0 44. A, right third maxilliped, lateral view; B, chela and carpus of left cheliped, lateral view; C, merus of left cheliped, lateral view; D, fixed finger of left chela, lateral view; E, left second pereopod, lateral view; F, left fourth pereopod; G, same, distal part of propodus and dactylus, lateral view; H, same, mesial view; I, left fifth pereopod, lateral view; J, same, distal part of propodus and dactylus, lateral view; K, same, mesial view. Scale bars: A–C, E, F, I =
<quantity id="4CDD9B5F5E43FFA34750CDE05510C988" box="[1063,1128,1995,2018]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="11" pageNumber="12" unit="mm" value="2.0">2 mm</quantity>
; D, G, H, J, K–M =
<quantity id="4CDD9B5F5E43FFA3464ACDE05406C988" box="[1341,1406,1995,2018]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="11" pageNumber="12" unit="mm" value="1.0">1 mm</quantity>
.
</paragraph>
</subSubSection>
<subSubSection id="C33F65315E44FFA443B1CABC53BACEBD" pageId="12" pageNumber="13" type="etymology">
<paragraph id="8B9A36BA5E44FFA443B1CABC53BACEBD" blockId="12.[151,1435,151,215]" pageId="12" pageNumber="13">
<emphasis id="B951EAA85E44FFA443B1CABC5033CEDB" bold="true" box="[198,331,151,177]" pageId="12" pageNumber="13">Etymology</emphasis>
. From the Latin,
<taxonomicName id="4C254D395E44FFA4416FCAB353E4CEDB" box="[536,668,152,177]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="12" pageNumber="13" phylum="Arthropoda" rank="species" species="propinquus">
<emphasis id="B951EAA85E44FFA4416FCAB353E4CEDB" box="[536,668,152,177]" italics="true" pageId="12" pageNumber="13">propinquus</emphasis>
</taxonomicName>
, meaning similar or related, in reference to the close similarity of the new species to
<taxonomicName id="4C254D395E44FFA44203CA965092CEBC" box="[372,490,189,214]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="12" pageNumber="13" phylum="Arthropoda" rank="species" species="alcocki">
<emphasis id="B951EAA85E44FFA44203CA965092CEBC" box="[372,490,189,214]" italics="true" pageId="12" pageNumber="13">A. alcocki</emphasis>
</taxonomicName>
and
<taxonomicName id="4C254D395E44FFA44155CA9653C3CEBC" box="[546,699,189,214]" class="Malacostraca" family="Calocarididae" genus="Ambiaxius" kingdom="Animalia" order="Decapoda" pageId="12" pageNumber="13" phylum="Arthropoda" rank="species" species="franklinae">
<emphasis id="B951EAA85E44FFA44155CA9653C3CEBC" box="[546,699,189,214]" italics="true" pageId="12" pageNumber="13">A. franklinae</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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