209 lines
23 KiB
XML
209 lines
23 KiB
XML
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<mods:title id="FD22DB7C16F924B0665341B2BA01207A">Crabs (Crustacea, Decapoda) from the Sea off East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 2. Timor Sea</mods:title>
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<mods:namePart id="5E7C3D033077BC3521A852FF5A06B4B0">Islam, Atikul</mods:namePart>
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<treatment id="039387ECAF51FF85FF222CF28E39FA54" ID-DOI="http://doi.org/10.5281/zenodo.12571401" ID-GBIF-Taxon="233808348" ID-Zenodo-Dep="12571401" LSID="urn:lsid:plazi:treatment:039387ECAF51FF85FF222CF28E39FA54" httpUri="http://treatment.plazi.org/id/039387ECAF51FF85FF222CF28E39FA54" lastPageNumber="13" pageId="8" pageNumber="13">
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<subSubSection id="C3206571AF51FF85FF222CF288ECF954" box="[164,645,1684,1709]" pageId="8" pageNumber="13" type="nomenclature">
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<paragraph id="8B8536FAAF51FF85FF222CF288ECF954" blockId="8.[144,664,1652,1739]" box="[164,645,1684,1709]" pageId="8" pageNumber="13">
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<heading id="D0CD8196AF51FF85FF222CF288ECF954" box="[164,645,1684,1709]" centered="true" fontSize="9" level="2" pageId="8" pageNumber="13" reason="4">
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<taxonomicName id="4C3A4D79AF51FF85FF222CF288ECF954" ID-CoL="4K6NH" authority="Ahyong and Lee, 2006" authorityName="Ahyong and Lee" authorityYear="2006" box="[164,645,1684,1709]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="griffini">
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<emphasis id="B94EEAE8AF51FF85FF222CF28BE5F955" bold="true" box="[164,396,1684,1708]" italics="true" pageId="8" pageNumber="13">Pleistacantha griffini</emphasis>
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<bibRefCitation id="EFAB4B0BAF51FF85FE172CF388ECF954" author="Ahyong, S. T. & T. Lee" box="[401,645,1685,1709]" pageId="8" pageNumber="13" pagination="1 - 17" refId="ref9726" refString="Ahyong, S. T. and T. Lee 2006. Two new species of Pleis- tacantha Miers, 1879 from the Indo-West Pacific region (Crustacea, Decapoda, Majidae). Zootaxa 1378: 1 - 17." type="journal article" year="2006">Ahyong and Lee, 2006</bibRefCitation>
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</taxonomicName>
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</heading>
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</paragraph>
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<subSubSection id="C3206571AF51FF85FEEC2CD28EFCFCC4" pageId="8" pageNumber="13" type="description">
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<paragraph id="8B8536FAAF51FF85FEEC2CD28BD6F932" blockId="8.[144,664,1652,1739]" box="[362,447,1716,1739]" pageId="8" pageNumber="13">
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(
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<figureCitation id="13012A7FAF51FF85FEF72CD28BD1F932" box="[369,440,1716,1739]" captionStart="Fig" captionStartId="9.[163,196,1357,1379]" captionTargetBox="[234,1142,215,1323]" captionTargetId="figure-66@9.[233,1143,213,1324]" captionTargetPageId="9" captionText="Fig. 5. A: Pleistacantha griffini Ahyong and Lee, male (NSMT-Cr 29258: CB 6.7mm×CL 10.2mm excluding pseudorostral spines) from sta. 28 (Timor Sea, 295–296m depth). B: Cyrtomaia suhmi Miers, male infected by epicaridean parasites in both branchial chambers (NSMT-Cr 29259: CB 31.6mm excluding branchial spines×CL 26.2mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690m depth). C–D: Dorhynchus rostratus (Sakai), female (NSMT-Cr 29261: CB 15.2mm×CL 15.0mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690m depth). E: Platymaia fimbriata Rathbun, male (NSMT-Cr 29263: CB 14.0mm×CL 12.6mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690m depth). F: Platymaia wyvillethomsoni Miers, ovigerous female (NSMT-Cr 29264: CB 39.5mm excluding branchial spines×CL 36.7mm excluding pseudorostral spines) from sta. 28 (Timor Sea, 295–296m depth)." figureDoi="http://doi.org/10.5281/zenodo.12571364" httpUri="https://zenodo.org/record/12571364/files/figure.png" pageId="8" pageNumber="13">Fig. 5A</figureCitation>
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)
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</paragraph>
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<emphasis id="B94EEAE8AF51FF85FF212C898B04F8FE" box="[167,365,1775,1799]" italics="true" pageId="8" pageNumber="13">Material examined</emphasis>
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. RV
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<emphasis id="B94EEAE8AF51FF85FE222C89885EF8FE" box="[420,567,1775,1799]" italics="true" pageId="8" pageNumber="13">Hakuhō Maru</emphasis>
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KH-72-1 cruise, sta. 28 (Timor Sea;
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<geoCoordinate id="EE0E503DAF51FF85FBEE2AB18EA6FF16" box="[1128,1231,214,239]" degrees="09" direction="south" minutes="34.4" orientation="latitude" pageId="8" pageNumber="13" precision="92" value="-9.573334">09°34.4′S</geoCoordinate>
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,
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<geoCoordinate id="EE0E503DAF51FF85FD452A9C895EFEEB" box="[707,823,249,274]" degrees="128" direction="east" minutes="06.0" orientation="longitude" pageId="8" pageNumber="13" precision="92" value="128.1">128°06.0′E</geoCoordinate>
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–
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<geoCoordinate id="EE0E503DAF51FF85FCC22A9C89C3FEEB" box="[836,938,249,274]" degrees="09" direction="south" minutes="33.5" orientation="latitude" pageId="8" pageNumber="13" precision="92" value="-9.558333">09°33.5′S</geoCoordinate>
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,
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<geoCoordinate id="EE0E503DAF51FF85FC4D2A9C8E28FEE8" box="[971,1089,249,274]" degrees="128" direction="east" minutes="03.4" orientation="longitude" pageId="8" pageNumber="13" precision="92" value="128.05667">128°03.4′E</geoCoordinate>
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,
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<quantity id="4CC29B1FAF51FF85FBE72A9C8EBDFEE8" box="[1121,1236,250,274]" metricMagnitude="2" metricUnit="m" metricValue="2.955" metricValueMax="2.96" metricValueMin="2.95" pageId="8" pageNumber="13" unit="m" value="295.5" valueMax="296.0" valueMin="295.0">295–296 m</quantity>
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depth);
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<quantity id="4CC29B1FAF51FF85FC982B7B892BFECD" box="[798,834,285,309]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="8" pageNumber="13" unit="m" value="3.0">3 m</quantity>
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beam trawl;
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<date id="FF84103AAF51FF85FC6D2B7B8EFDFECC" box="[1003,1172,285,309]" pageId="8" pageNumber="13" value="1972-06-24">June 24, 1972</date>
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; 1 ♂ (NSMT-Cr 29258: CL
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<quantity id="4CC29B1FAF51FF85FC342B598E65FEAE" box="[946,1036,319,343]" metricMagnitude="-2" metricUnit="m" metricValue="1.02" pageId="8" pageNumber="13" unit="mm" value="10.2">10.2 mm</quantity>
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excluding pseudorostral spines, CB
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||
<quantity id="4CC29B1FAF51FF85FC0E2B0489B3FE83" box="[904,986,354,378]" metricMagnitude="-3" metricUnit="m" metricValue="6.7" pageId="8" pageNumber="13" unit="mm" value="6.7">6.7 mm</quantity>
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).
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</paragraph>
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<paragraph id="8B8536FAAF51FF85FD5B2BE38EFCFCC4" blockId="8.[707,1240,214,1453]" pageId="8" pageNumber="13">
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<emphasis id="B94EEAE8AF51FF85FD5B2BE3892BFE64" box="[733,834,389,413]" italics="true" pageId="8" pageNumber="13">Remarks.</emphasis>
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The general appearance of species of
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<taxonomicName id="4C3A4D79AF51FF85FD452BC1893FFE46" authorityName="Miers" authorityYear="1879" box="[707,854,423,447]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="genus">
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<emphasis id="B94EEAE8AF51FF85FD452BC1893FFE46" box="[707,854,423,447]" italics="true" pageId="8" pageNumber="13">Pleistacantha</emphasis>
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</taxonomicName>
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changes somewhat owing to sizerelated inflation of the branchial regions and to sexual dimorphism (e.g.
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<bibRefCitation id="EFAB4B0BAF51FF85FC502B8B8EC0FDFC" author="Prema, M. & S. Ravichandran & P. K. L. Ng" box="[982,1193,493,517]" pageId="8" pageNumber="13" pagination="86 - 94" refId="ref12840" refString="Prema, M., S. Ravichandran and P. K. L. Ng 2020. Mor- phometric and sexual dimorphism in the giant spiny spider crab Pleistacantha kannu Ng, Ravinesh & Ravi- chandran 2017 (Crustacea: Brachyura: Oregoniidae) from India. Proceedings of the Zoological Society 73: 86 - 94." type="journal article" year="2020">
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Prema
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<emphasis id="B94EEAE8AF51FF85FBA32B8B8E37FDFC" box="[1061,1118,493,517]" italics="true" pageId="8" pageNumber="13">et al.</emphasis>
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, 2020
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||
</bibRefCitation>
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||
). In addition, as briefly discussed by
|
||
<bibRefCitation id="EFAB4B0BAF51FF85FBA728698964FDB3" author="Ahyong, S. T. & T. Lee" pageId="8" pageNumber="13" pagination="1 - 17" refId="ref9726" refString="Ahyong, S. T. and T. Lee 2006. Two new species of Pleis- tacantha Miers, 1879 from the Indo-West Pacific region (Crustacea, Decapoda, Majidae). Zootaxa 1378: 1 - 17." type="journal article" year="2006">Ahyong and Lee (2006)</bibRefCitation>
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, the distinctness of sexual dimorphism probably varies among species. The taxonomy is, therefore, usually discussed mainly on the basis of adult specimens. The present specimen, a juvenile male with poorly developed gonopods, nevertheless possesses diagnostic features of
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<taxonomicName id="4C3A4D79AF51FF85FB4628868964FCE3" authorityName="Ahyong and Lee" authorityYear="2006" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="griffini">
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<emphasis id="B94EEAE8AF51FF85FB4628868964FCE3" italics="true" pageId="8" pageNumber="13">P. griffini</emphasis>
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</taxonomicName>
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, described from the North West Shelf,
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<collectingRegion id="49FEF818AF51FF85FD45294389E8FCC4" box="[707,897,805,829]" country="Australia" name="Western Australia" pageId="8" pageNumber="13">Western Australia</collectingRegion>
|
||
(
|
||
<bibRefCitation id="EFAB4B0BAF51FF85FC0829438EE0FCC4" author="Ahyong, S. T. & T. Lee" box="[910,1161,805,829]" pageId="8" pageNumber="13" pagination="1 - 17" refId="ref9726" refString="Ahyong, S. T. and T. Lee 2006. Two new species of Pleis- tacantha Miers, 1879 from the Indo-West Pacific region (Crustacea, Decapoda, Majidae). Zootaxa 1378: 1 - 17." type="journal article" year="2006">Ahyong and Lee, 2006</bibRefCitation>
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||
).
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</paragraph>
|
||
</subSubSection>
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<subSubSection id="C3206571AF51FF85FD5B29218ED4FABC" pageId="8" pageNumber="13" type="reference_group">
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<paragraph id="8B8536FAAF51FF85FD5B29218ED4FABC" blockId="8.[707,1240,214,1453]" pageId="8" pageNumber="13">
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<taxonomicName id="4C3A4D79AF51FF85FD5B292189A7FCA6" ID-CoL="4K6NH" authorityName="Ahyong and Lee" authorityYear="2006" box="[733,974,839,863]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="griffini">
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<emphasis id="B94EEAE8AF51FF85FD5B292189A7FCA6" box="[733,974,839,863]" italics="true" pageId="8" pageNumber="13">Pleistacantha griffini</emphasis>
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||
</taxonomicName>
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||
closely resembles
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<taxonomicName id="4C3A4D79AF51FF85FB46292E89B8FC7B" ID-CoL="4K6NM" authority="(Miers, 1886)" baseAuthorityName="Miers" baseAuthorityYear="1886" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="moseleyi">
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||
<emphasis id="B94EEAE8AF51FF85FB46292E8949FC7B" italics="true" pageId="8" pageNumber="13">P. moseleyi</emphasis>
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||
(
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<bibRefCitation id="EFAB4B0BAF51FF85FCBC290C89A0FC7B" author="Miers, E. J." box="[826,969,874,898]" pageId="8" pageNumber="13" pagination="1 - 29" refId="ref11996" refString="Miers, E. J. 1886. Report on the Brachyura collected by H. M. S. Challenger during the years 1873 - 76. In: Report on the Scientific Results of the Voyage of H. M. S. Challenger during the years 1873 - 1876 under the command of Captain George S. Nares, R. N., F. R. S. and the late Captain Frank Tourle Thomson, R. N. prepared under the Superintendence of the late Sir C. Wyville Thomson, Knt., F. R. S. & c. Regius Professor of Natural History in the University of Edinburgh of the civilian scientific staff on board and now of John Mur- ray, one of the naturalists of the Expedition. Zoology, 17: i - L, 1 - 362, pls. 1 - 29." type="journal article" year="1886">Miers, 1886</bibRefCitation>
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||
)
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</taxonomicName>
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from the
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<collectingCountry id="F32D766AAF51FF85FBDA290C8EBDFC7B" box="[1116,1236,874,898]" name="Philippines" pageId="8" pageNumber="13">Philippines</collectingCountry>
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||
(
|
||
<bibRefCitation id="EFAB4B0BAF51FF85FD4C29EB89ADFC5C" author="Ahyong, S. T. & T. Lee" box="[714,964,909,933]" pageId="8" pageNumber="13" pagination="1 - 17" refId="ref9726" refString="Ahyong, S. T. and T. Lee 2006. Two new species of Pleis- tacantha Miers, 1879 from the Indo-West Pacific region (Crustacea, Decapoda, Majidae). Zootaxa 1378: 1 - 17." type="journal article" year="2006">Ahyong and Lee, 2006</bibRefCitation>
|
||
), and of five features discussed by
|
||
<bibRefCitation id="EFAB4B0BAF51FF85FCBC29C98E23FC3E" author="Ahyong, S. T. & T. Lee" box="[826,1098,943,967]" pageId="8" pageNumber="13" pagination="1 - 17" refId="ref9726" refString="Ahyong, S. T. and T. Lee 2006. Two new species of Pleis- tacantha Miers, 1879 from the Indo-West Pacific region (Crustacea, Decapoda, Majidae). Zootaxa 1378: 1 - 17." type="journal article" year="2006">Ahyong and Lee (2006)</bibRefCitation>
|
||
, the followings are available to distinguish the two species (see also
|
||
<bibRefCitation id="EFAB4B0BAF51FF85FCB129938998FBF4" author="Ng, P. K. L. & R. Ravinesh & S. Ravichanran" box="[823,1009,1013,1037]" pageId="8" pageNumber="13" pagination="127 - 146" refId="ref12504" refString="Ng, P. K. L., R. Ravinesh and S. Ravichanran 2017. A new large oregoniid spider crab pf the genus Pleista- cantha Miers, 1879, from the Bay of Bengal, India (Crustacea, Brachyura, Majoidea). Zookeys 716: 127 - 146." type="journal article" year="2017">
|
||
Ng
|
||
<emphasis id="B94EEAE8AF51FF85FCE0299389CDFBF4" box="[870,932,1013,1037]" italics="true" pageId="8" pageNumber="13">et al.</emphasis>
|
||
, 2017
|
||
</bibRefCitation>
|
||
, figs. 3A, 4A, 5A, 6A–B, 7A–C, 8A–B, 9A–B, 10A–D). The mesial margins of the branchial regions are more widely separated such that several rows of small spines are present along the midline between the two regions in
|
||
<taxonomicName id="4C3A4D79AF51FF85FCB02EC589F5FB43" ID-CoL="4K6NH" authorityName="Ahyong and Lee" authorityYear="2006" box="[822,924,1186,1210]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="griffini">
|
||
<emphasis id="B94EEAE8AF51FF85FCB02EC589F5FB43" box="[822,924,1186,1210]" italics="true" pageId="8" pageNumber="13">P. griffini</emphasis>
|
||
</taxonomicName>
|
||
(a single row of spines in
|
||
<taxonomicName id="4C3A4D79AF51FF85FB462EC58949FB24" ID-CoL="4K6NM" baseAuthorityName="Miers" baseAuthorityYear="1886" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="moseleyi">
|
||
<emphasis id="B94EEAE8AF51FF85FB462EC58949FB24" italics="true" pageId="8" pageNumber="13">P. moseleyi</emphasis>
|
||
</taxonomicName>
|
||
); and the merus of the fifth ambulatory leg is relatively shorter in
|
||
<taxonomicName id="4C3A4D79AF51FF85FC742E8E8E32FB06" ID-CoL="4K6NH" authorityName="Ahyong and Lee" authorityYear="2006" box="[1010,1115,1255,1279]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="griffini">
|
||
<emphasis id="B94EEAE8AF51FF85FC742E8E8E32FB06" box="[1010,1115,1255,1279]" italics="true" pageId="8" pageNumber="13">P. griffini</emphasis>
|
||
</taxonomicName>
|
||
than in
|
||
<taxonomicName id="4C3A4D79AF51FF85FB462E8E8949FADB" ID-CoL="4K6NM" baseAuthorityName="Miers" baseAuthorityYear="1886" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="moseleyi">
|
||
<emphasis id="B94EEAE8AF51FF85FB462E8E8949FADB" italics="true" pageId="8" pageNumber="13">P. moseleyi</emphasis>
|
||
</taxonomicName>
|
||
(merus length/pcl:
|
||
<quantity id="4CC29B1FAF51FF85FB8D2F6C8E39FADB" box="[1035,1104,1290,1314]" metricMagnitude="-2" metricUnit="m" metricValue="1.7779999999999998" pageId="8" pageNumber="13" unit="in" value="0.7">0.7 in</quantity>
|
||
<taxonomicName id="4C3A4D79AF51FF85FBE62F6D8EA4FADB" ID-CoL="4K6NH" authorityName="Ahyong and Lee" authorityYear="2006" box="[1120,1229,1290,1314]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="griffini">
|
||
<emphasis id="B94EEAE8AF51FF85FBE62F6D8EA4FADB" box="[1120,1229,1290,1314]" italics="true" pageId="8" pageNumber="13">P. griffini</emphasis>
|
||
</taxonomicName>
|
||
; 0.8–1.0 in
|
||
<taxonomicName id="4C3A4D79AF51FF85FCB32F4B89C5FABC" ID-CoL="4K6NM" baseAuthorityName="Miers" baseAuthorityYear="1886" box="[821,940,1325,1349]" class="Malacostraca" family="Oregoniidae" genus="Pleistacantha" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="13" phylum="Arthropoda" rank="species" species="moseleyi">
|
||
<emphasis id="B94EEAE8AF51FF85FCB32F4B89C5FABC" box="[821,940,1325,1349]" italics="true" pageId="8" pageNumber="13">P. moseleyi</emphasis>
|
||
</taxonomicName>
|
||
;
|
||
<quantity id="4CC29B1FAF51FF85FC3C2F4B899EFABC" box="[954,1015,1325,1349]" metricMagnitude="-2" metricUnit="m" metricValue="1.524" pageId="8" pageNumber="13" unit="in" value="0.6">0.6 in</quantity>
|
||
the present male).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3206571AF51FF85FD5B2F298E39FA54" pageId="8" pageNumber="13" type="distribution">
|
||
<paragraph id="8B8536FAAF51FF85FD5B2F298E39FA54" blockId="8.[707,1240,214,1453]" pageId="8" pageNumber="13">
|
||
<emphasis id="B94EEAE8AF51FF85FD5B2F29890EFA9E" box="[733,871,1359,1383]" italics="true" pageId="8" pageNumber="13">Distribution.</emphasis>
|
||
North West Shelf of
|
||
<collectingCountry id="F32D766AAF51FF85FBED2F298EB9FA9E" box="[1131,1232,1359,1383]" name="Australia" pageId="8" pageNumber="13">Australia</collectingCountry>
|
||
; Timor Sea;
|
||
<collectingRegion id="49FEF818AF51FF85FCDB2F1489DFFA73" box="[861,950,1394,1418]" country="Indonesia" name="Sumatera Utara" pageId="8" pageNumber="13">Sumatra</collectingRegion>
|
||
and off the Tanimbar Islands,
|
||
<collectingCountry id="F32D766AAF51FF85FC9A2FF389EEFA54" box="[796,903,1429,1453]" name="Indonesia" pageId="8" pageNumber="13">Indonesia</collectingCountry>
|
||
;
|
||
<quantity id="4CC29B1FAF51FF85FC172FF28E6EFA55" box="[913,1031,1428,1452]" metricMagnitude="2" metricUnit="m" metricValue="3.475" metricValueMax="4.0" metricValueMin="2.95" pageId="8" pageNumber="13" unit="m" value="347.5" valueMax="400.0" valueMin="295.0">295–400 m</quantity>
|
||
depth.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |