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<document id="F1F94C3D3F5B2585ED39901B826E174C" ID-CLB-Dataset="303589" ID-DOI="10.50826/bnmnszool.49.1_7" ID-GBIF-Dataset="cc963576-f629-4950-92ca-062bbbcfd983" ID-ISSN="2434-091X" ID-Zenodo-Dep="13826440" IM.bibliography_approvedBy="karina" IM.illustrations_approvedBy="karina" IM.materialsCitations_approvedBy="karina" IM.metadata_approvedBy="karina" IM.tables_approvedBy="karina" IM.taxonomicNames_approvedBy="karina" IM.treatmentCitations_approvedBy="karina" IM.treatments_approvedBy="karina" checkinTime="1718644172263" checkinUser="felipe" docAuthor="Shaga, I Bevin, Priya, K, Ramar, Selvakumar, Srinidhi, S, Mohan, G Chandra, Ranganathan, Sukanya, Moulvi, S M M &amp; Mani, Bhuvaneswari" docDate="2023" docId="1B153E3AFF8AFFB4F23DCC225EB0FBA8" docLanguage="en" docName=" BullNatlMusNatSciSerA.49.1.7-42.imf" docOrigin="Bulletin of the National Museum of Nature and Science. Series A, Zoology 49 (1)" docSource="http://dx.doi.org/10.4103/jpbs.jpbs_1095_23" docStyle="DocumentStyle:EEA6C589EB70DFF4CCECB2264A05AF4C.2:BullNatlMusNatSciSerA.2021-.journal_article.english.noindex" docStyleId="EEA6C589EB70DFF4CCECB2264A05AF4C" docStyleName="BullNatlMusNatSciSerA.2021-.journal_article.english.noindex" docStyleVersion="2" docTitle="Trierarchus squamosus" docType="treatment" docVersion="3" lastPageNumber="22" masterDocId="E72C4642FF85FFBBF32EC8235A35FFDD" masterDocTitle="A Small Collection of Subtidal Crabs (Crustacea: Decapoda: Brachyura) from the Palau Islands Collected by Dredging" masterLastPageNumber="42" masterPageNumber="7" pageNumber="22" updateTime="1727046838326" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="AD2E6469351D91AC3DB61360DAC2A966">A Small Collection of Subtidal Crabs (Crustacea: Decapoda: Brachyura) from the Palau Islands Collected by Dredging</mods:title>
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<treatment id="1B153E3AFF8AFFB4F23DCC225EB0FBA8" ID-DOI="http://doi.org/10.5281/zenodo.13826509" ID-Zenodo-Dep="13826509" LSID="urn:lsid:plazi:treatment:1B153E3AFF8AFFB4F23DCC225EB0FBA8" httpUri="http://treatment.plazi.org/id/1B153E3AFF8AFFB4F23DCC225EB0FBA8" lastPageNumber="22" pageId="15" pageNumber="22">
<subSubSection id="DBA6DCA7FF8AFFB4F23DCC225875FBE1" pageId="15" pageNumber="22" type="nomenclature">
<paragraph id="93038F2CFF8AFFB4F23DCC225875FBE1" blockId="15.[140,670,1025,1275]" pageId="15" pageNumber="22">
<taxonomicName id="54BCF4AFFF8AFFB4F23DCC225875FBE1" ID-CoL="84HF7" authority="(Stephenson and Hudson, 1957)" baseAuthorityName="Stephenson and Hudson" baseAuthorityYear="1957" class="Malacostraca" family="Portunidae" genus="Trierarchus" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="22" phylum="Arthropoda" rank="species" species="squamosus">
<heading id="C84B3840FF8AFFB4F23DCC225823FBC4" bold="true" box="[275,534,1025,1049]" centered="true" fontSize="36" level="1" pageId="15" pageNumber="22" reason="1">
<emphasis id="A1C8533EFF8AFFB4F23DCC225823FBC4" bold="true" box="[275,534,1025,1049]" italics="true" pageId="15" pageNumber="22">Trierarchus squamosus</emphasis>
</heading>
(
<bibRefCitation id="F72DF2DDFF8AFFB4F3DECC06580DFBE1" author="Stephenson, W. &amp; J. J. Hudson" box="[240,568,1060,1085]" pageId="15" pageNumber="22" pagination="312 - 368" refId="ref23049" refString="Stephenson, W. and J. J. Hudson 1957. The Australian portunids (Crustacea: Portunidae). I. The genus Thalamita. Australian Journal of Marine and Freshwater Research 8: 312 - 368, pls. 1 - 10." type="journal article" year="1957">Stephenson and Hudson, 1957</bibRefCitation>
)
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="DBA6DCA7FF8AFFB4F21ECC6F5BCCFBBE" box="[304,505,1100,1123]" pageId="15" pageNumber="22" type="description">
<paragraph id="93038F2CFF8AFFB4F21ECC6F5BCCFBBE" blockId="15.[140,670,1025,1275]" box="[304,505,1100,1123]" pageId="15" pageNumber="22">
(
<figureCitation id="0B8793A9FF8AFFB4F218CC6F5B42FBBC" box="[310,375,1100,1122]" captionStart="Fig" captionStartId="16.[163,196,1689,1711]" captionTargetBox="[159,1217,215,1654]" captionTargetId="figure-9@16.[157,1218,213,1655]" captionTargetPageId="16" captionText="Fig. 8. Trierarchus squamosus (Stehenson and Hudson 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Carapace in dorsal view (A), abdomen (B), both chelipeds in outer (C) and upper (D) views." figureDoi="http://doi.org/10.5281/zenodo.13826462" httpUri="https://zenodo.org/record/13826462/files/figure.png" pageId="15" pageNumber="22">Figs. 8</figureCitation>
,
<figureCitation id="0B8793A9FF8AFFB4F2AECC6F5B9CFBBC" box="[384,425,1100,1121]" captionStart="Fig" captionStartId="20.[163,196,996,1018]" captionTargetBox="[159,1217,213,963]" captionTargetId="figure-273@20.[159,1217,213,963]" captionTargetPageId="20" captionText="Fig. 10. A: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Front-orbital region in dorsal view. BC: Chlorodiella xishaensis Chen and Lan, ♂ (NSMT-Cr 30983; cb 8.0×cl 5.7mm). Left G1 in ventral view (B) and right third ambulatory leg in dorsal view (C). DF: Chlorodiella corallicola Miyake and Takeda, ♂ (holotype, ZLKU 1724; cb 6.6×cl 4.4mm). Distal part of right G1 in ventral (D) and sternal (E) views (original figures by Miyake and Takeda, 1968). Scales for A=5mm, B= 0.5mm, C=3 mm, F=0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.13826468" httpUri="https://zenodo.org/record/13826468/files/figure.png" pageId="15" pageNumber="22">10A</figureCitation>
,
<figureCitation id="0B8793A9FF8AFFB4F29DCC6E5BC6FBBE" box="[435,499,1101,1123]" captionStart="Fig" captionStartId="28.[163,196,1571,1593]" captionTargetBox="[215,1161,213,1537]" captionTargetId="figure-9@28.[214,1162,213,1537]" captionTargetPageId="28" captionText="Fig. 15. AB: Palicoides whitei (Miers), ♂(NSMT-Cr 31000; cb 7.0×cl 4.7mm). Left orbital region, with third maxilliped, in ventral view (A) and right G1 in sternal view (B). Arrow in Fig. A shows a curved tubercle extending from the eyestalk to guard the cornea. CE: Neopalicus jukesii (White), ♂ (NSMT-Cr 30997; cb 8.2×cl 7.3mm). Left third maxilliped (C), G1 in ventral view (D) and distal part of the same in sternal view (E). FG: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Left third maxilliped (F) and left G1 in sternal view. (G). Scales for AC=1mm, BEFG=2 mm, D=0.5mm." figureDoi="http://doi.org/10.5281/zenodo.13826482" httpUri="https://zenodo.org/record/13826482/files/figure.png" pageId="15" pageNumber="22">15FG</figureCitation>
)
</paragraph>
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<paragraph id="93038F2CFF8AFFB4F3A2CC535B9BFB27" blockId="15.[140,670,1025,1275]" pageId="15" pageNumber="22">
<taxonomicName id="54BCF4AFFF8AFFB4F3A2CC535841FB5B" ID-CoL="7Z5MN" authority="Stephenson and Hudson, 1957" authorityName="Stephenson and Hudson" authorityYear="1957" box="[140,628,1136,1158]" class="Malacostraca" family="Portunidae" genus="Thalamita" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="22" phylum="Arthropoda" rank="species" species="squamosa">
<emphasis id="A1C8533EFF8AFFB4F3A2CC535B78FB58" box="[140,333,1136,1157]" italics="true" pageId="15" pageNumber="22">Thalamita squamosa</emphasis>
<bibRefCitation id="F72DF2DDFF8AFFB4F27BCC535841FB5B" author="Stephenson, W. &amp; J. J. Hudson" box="[341,628,1136,1158]" pageId="15" pageNumber="22" pagination="312 - 368" refId="ref23049" refString="Stephenson, W. and J. J. Hudson 1957. The Australian portunids (Crustacea: Portunidae). I. The genus Thalamita. Australian Journal of Marine and Freshwater Research 8: 312 - 368, pls. 1 - 10." type="journal article" year="1957">Stephenson and Hudson, 1957</bibRefCitation>
</taxonomicName>
, pp. 320 (in key), 355, figs. 2K, 3K, pl. 5 fig. 4, pl. 8 fig. Q, pl. 10 fig. J. ─
<bibRefCitation id="F72DF2DDFF8AFFB4F217CC895BE9FB1D" author="Stephenson, W." box="[313,476,1194,1216]" pageId="15" pageNumber="22" pagination="11 - 26" refId="ref22983" refString="Stephenson, W. 1976. Notes on Indo-West-Pacific portu- nids (Decapoda, Portunidae) in the Smithsonian Institution. Crustaceana 31: 11 - 26." type="journal article" year="1976">Stephenson, 1976</bibRefCitation>
, p. 24.
<taxonomicName id="54BCF4AFFF8AFFB4F3A2CCEB5863FB03" ID-CoL="84HF7" authority="(Stephenson and Hudson)" baseAuthorityName="Stephenson and Hudson" baseAuthorityYear="1957" box="[140,598,1224,1246]" class="Malacostraca" family="Portunidae" genus="Trierarchus" kingdom="Animalia" order="Decapoda" pageId="15" pageNumber="22" phylum="Arthropoda" rank="species" species="squamosus">
<emphasis id="A1C8533EFF8AFFB4F3A2CCEB5B55FB00" box="[140,352,1224,1245]" italics="true" pageId="15" pageNumber="22">Trierarchus squamosus</emphasis>
(Stephenson and Hudson)
</taxonomicName>
:
<bibRefCitation id="F72DF2DDFF8AFFB4F14ECCEB5AE3FB27" author="Evans, N." pageId="15" pageNumber="22" refId="ref18393" refString="Evans, N. 2018. Molecular phylogenetics of swimming crabs (Portunoidea Rafinesque, 1815) supports a revised family-level classification and suggests a single derived origin of symbiotic taxa. PeerJ 6: e 4260." type="journal volume" year="2018">Evans, 2018</bibRefCitation>
, p. 14 (in table), fig. 3J.
</paragraph>
</subSubSection>
<subSubSection id="DBA6DCA7FF8AFFB4F389CD0E5B9BFA12" pageId="15" pageNumber="22" type="materials_examined">
<paragraph id="93038F2CFF8AFFB4F389CD0E5B9BFA12" blockId="15.[140,669,1325,1799]" pageId="15" pageNumber="22">
<emphasis id="A1C8533EFF8AFFB4F389CD0E5B41FA98" box="[167,372,1325,1349]" italics="true" pageId="15" pageNumber="22">Material examined</emphasis>
.
<materialsCitation id="23D48571FF8AFFB4F2B8CD0E5B9BFA12" collectingDate="1980-06-19" collectorName="Babelthuap I. &amp; K. Baba" country="Palau" elevation="35" location="Entrance" municipality="Toagel Mid in Arangel Channel" pageId="15" pageNumber="22" specimenCount="1">
<location id="9663D9F7FF8AFFB4F2B8CD0E5BC0FA99" LSID="urn:lsid:plazi:treatment:1B153E3AFF8AFFB4F23DCC225EB0FBA8:9663D9F7FF8AFFB4F2B8CD0E5BC0FA99" box="[406,501,1325,1348]" country="Palau" municipality="Toagel Mid in Arangel Channel" name="Entrance" pageId="15" pageNumber="22">Entrance</location>
to
<collectingMunicipality id="73671556FF8AFFB4F130CD0E5B45FABA" pageId="15" pageNumber="22">Toagel Mid in Arangel Channel</collectingMunicipality>
,
<collectorName id="3E49EAFAFF8AFFB4F2ADCD6C5828FABA" box="[387,541,1359,1383]" pageId="15" pageNumber="22">Babelthuap I.</collectorName>
,
<collectingCountry id="EBABCFBCFF8AFFB4F11CCD6C5858FABA" box="[562,621,1359,1383]" name="Palau" pageId="15" pageNumber="22">Palau</collectingCountry>
Is., dredged,
<quantity id="544422C9FF8AFFB4F3DCCD515B78FA54" box="[242,333,1394,1418]" metricMagnitude="1" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="15" pageNumber="22" unit="m" value="35.0" valueMax="40.0" valueMin="30.0">
<elevation id="1891681FFF8AFFB4F3DCCD515B78FA54" box="[242,333,1394,1418]" metricMagnitude="1" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="15" pageNumber="22" unit="m" value="35.0" valueMax="40.0" valueMin="30.0">3040 m</elevation>
</quantity>
in depth, with coralline algae; 1 ♂ (cb 12.6×cl
<quantity id="544422C9FF8AFFB4F246CDB65B8FFA70" box="[360,442,1429,1453]" metricMagnitude="-3" metricUnit="m" metricValue="8.7" pageId="15" pageNumber="22" unit="mm" value="8.7">8.7 mm</quantity>
), NSMT-Cr 30977;
<date id="E702A9ECFF8AFFB4F3A2CD9B5B2BFA12" box="[140,286,1463,1487]" pageId="15" pageNumber="22" value="1980-06-19">
<collectingDate id="F7465004FF8AFFB4F3A2CD9B5B2BFA12" box="[140,286,1463,1487]" pageId="15" pageNumber="22" value="1980-06-19">June 19 1980</collectingDate>
</date>
;
<collectorName id="3E49EAFAFF8AFFB4F206CD9B5BB5FA12" box="[296,384,1463,1487]" pageId="15" pageNumber="22">K. Baba</collectorName>
leg.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="DBA6DCA7FF8AFFB4F389CDF95963FBD0" pageId="15" pageNumber="22" type="discussion">
<paragraph id="93038F2CFF8AFFB4F389CDF95963FBD0" blockId="15.[140,669,1325,1799]" lastBlockId="15.[707,1237,215,1141]" pageId="15" pageNumber="22">
<emphasis id="A1C8533EFF8AFFB4F389CDF95B3EFA2F" box="[167,267,1498,1522]" italics="true" pageId="15" pageNumber="22">Remarks.</emphasis>
This species is most characteristic in having only four strong and sharp anterolateral teeth of the carapace including the external orbital tooth (
<figureCitation id="0B8793A9FF8AFFB4F201CE615BA2F987" box="[303,407,1602,1626]" captionStart="Fig" captionStartId="16.[163,196,1689,1711]" captionTargetBox="[159,1217,215,1654]" captionTargetId="figure-9@16.[157,1218,213,1655]" captionTargetPageId="16" captionText="Fig. 8. Trierarchus squamosus (Stehenson and Hudson 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Carapace in dorsal view (A), abdomen (B), both chelipeds in outer (C) and upper (D) views." figureDoi="http://doi.org/10.5281/zenodo.13826462" httpUri="https://zenodo.org/record/13826462/files/figure.png" pageId="15" pageNumber="22">Figs. 8A</figureCitation>
,
<figureCitation id="0B8793A9FF8AFFB4F285CE615BE8F987" box="[427,477,1602,1626]" captionStart="Fig" captionStartId="20.[163,196,996,1018]" captionTargetBox="[159,1217,213,963]" captionTargetId="figure-273@20.[159,1217,213,963]" captionTargetPageId="20" captionText="Fig. 10. A: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Front-orbital region in dorsal view. BC: Chlorodiella xishaensis Chen and Lan, ♂ (NSMT-Cr 30983; cb 8.0×cl 5.7mm). Left G1 in ventral view (B) and right third ambulatory leg in dorsal view (C). DF: Chlorodiella corallicola Miyake and Takeda, ♂ (holotype, ZLKU 1724; cb 6.6×cl 4.4mm). Distal part of right G1 in ventral (D) and sternal (E) views (original figures by Miyake and Takeda, 1968). Scales for A=5mm, B= 0.5mm, C=3 mm, F=0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.13826468" httpUri="https://zenodo.org/record/13826468/files/figure.png" pageId="15" pageNumber="22">10A</figureCitation>
); posterior three teeth are only slightly smaller than the first or the external orbital tooth. All the ridges of the carapace areolae are distinct (
<figureCitation id="0B8793A9FF8AFFB4F29ACE89582DF91F" box="[436,536,1706,1730]" captionStart="Fig" captionStartId="16.[163,196,1689,1711]" captionTargetBox="[159,1217,215,1654]" captionTargetId="figure-9@16.[157,1218,213,1655]" captionTargetPageId="16" captionText="Fig. 8. Trierarchus squamosus (Stehenson and Hudson 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Carapace in dorsal view (A), abdomen (B), both chelipeds in outer (C) and upper (D) views." figureDoi="http://doi.org/10.5281/zenodo.13826462" httpUri="https://zenodo.org/record/13826462/files/figure.png" pageId="15" pageNumber="22">Figs. 8A</figureCitation>
,
<figureCitation id="0B8793A9FF8AFFB4F104CE89586EF91F" box="[554,603,1706,1730]" captionStart="Fig" captionStartId="20.[163,196,996,1018]" captionTargetBox="[159,1217,213,963]" captionTargetId="figure-273@20.[159,1217,213,963]" captionTargetPageId="20" captionText="Fig. 10. A: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Front-orbital region in dorsal view. BC: Chlorodiella xishaensis Chen and Lan, ♂ (NSMT-Cr 30983; cb 8.0×cl 5.7mm). Left G1 in ventral view (B) and right third ambulatory leg in dorsal view (C). DF: Chlorodiella corallicola Miyake and Takeda, ♂ (holotype, ZLKU 1724; cb 6.6×cl 4.4mm). Distal part of right G1 in ventral (D) and sternal (E) views (original figures by Miyake and Takeda, 1968). Scales for A=5mm, B= 0.5mm, C=3 mm, F=0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.13826468" httpUri="https://zenodo.org/record/13826468/files/figure.png" pageId="15" pageNumber="22">10A</figureCitation>
). The frontal margin is cut into four lobes (
<figureCitation id="0B8793A9FF8AFFB4F11BCEEE58ADF938" box="[565,664,1741,1765]" captionStart="Fig" captionStartId="16.[163,196,1689,1711]" captionTargetBox="[159,1217,215,1654]" captionTargetId="figure-9@16.[157,1218,213,1655]" captionTargetPageId="16" captionText="Fig. 8. Trierarchus squamosus (Stehenson and Hudson 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Carapace in dorsal view (A), abdomen (B), both chelipeds in outer (C) and upper (D) views." figureDoi="http://doi.org/10.5281/zenodo.13826462" httpUri="https://zenodo.org/record/13826462/files/figure.png" pageId="15" pageNumber="22">Figs. 8A</figureCitation>
,
<figureCitation id="0B8793A9FF8AFFB4F3A2CECC5A88F8DA" box="[140,189,1775,1799]" captionStart="Fig" captionStartId="20.[163,196,996,1018]" captionTargetBox="[159,1217,213,963]" captionTargetId="figure-273@20.[159,1217,213,963]" captionTargetPageId="20" captionText="Fig. 10. A: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Front-orbital region in dorsal view. BC: Chlorodiella xishaensis Chen and Lan, ♂ (NSMT-Cr 30983; cb 8.0×cl 5.7mm). Left G1 in ventral view (B) and right third ambulatory leg in dorsal view (C). DF: Chlorodiella corallicola Miyake and Takeda, ♂ (holotype, ZLKU 1724; cb 6.6×cl 4.4mm). Distal part of right G1 in ventral (D) and sternal (E) views (original figures by Miyake and Takeda, 1968). Scales for A=5mm, B= 0.5mm, C=3 mm, F=0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.13826468" httpUri="https://zenodo.org/record/13826468/files/figure.png" pageId="15" pageNumber="22">10A</figureCitation>
); each median lobe about two-thirds as wide as the lateral lobe, its outer end being shortly overlapped by the lateral lobe; the lateral lobe is slightly behind the frontal level of the median lobe, weakly concave in the middle, making the appearance of the six-lobed front. The frontal and supraorbital margins are narrowly crested along the whole lengths (
<figureCitation id="0B8793A9FF8AFFB4F0FCC9845E03FE62" box="[978,1078,423,447]" captionStart="Fig" captionStartId="20.[163,196,996,1018]" captionTargetBox="[159,1217,213,963]" captionTargetId="figure-273@20.[159,1217,213,963]" captionTargetPageId="20" captionText="Fig. 10. A: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Front-orbital region in dorsal view. BC: Chlorodiella xishaensis Chen and Lan, ♂ (NSMT-Cr 30983; cb 8.0×cl 5.7mm). Left G1 in ventral view (B) and right third ambulatory leg in dorsal view (C). DF: Chlorodiella corallicola Miyake and Takeda, ♂ (holotype, ZLKU 1724; cb 6.6×cl 4.4mm). Distal part of right G1 in ventral (D) and sternal (E) views (original figures by Miyake and Takeda, 1968). Scales for A=5mm, B= 0.5mm, C=3 mm, F=0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.13826468" httpUri="https://zenodo.org/record/13826468/files/figure.png" pageId="15" pageNumber="22">Fig. 10A</figureCitation>
). The antennal basal segment is armed with a distinct ridge tipped with small granules along the distal half. The third maxilliped is as figured, with the anterodistal angle of the merus is narrowly extended forward (
<figureCitation id="0B8793A9FF8AFFB4F0BACA7659C3FDB1" box="[916,1014,596,621]" captionStart="Fig" captionStartId="28.[163,196,1571,1593]" captionTargetBox="[215,1161,213,1537]" captionTargetId="figure-9@28.[214,1162,213,1537]" captionTargetPageId="28" captionText="Fig. 15. AB: Palicoides whitei (Miers), ♂(NSMT-Cr 31000; cb 7.0×cl 4.7mm). Left orbital region, with third maxilliped, in ventral view (A) and right G1 in sternal view (B). Arrow in Fig. A shows a curved tubercle extending from the eyestalk to guard the cornea. CE: Neopalicus jukesii (White), ♂ (NSMT-Cr 30997; cb 8.2×cl 7.3mm). Left third maxilliped (C), G1 in ventral view (D) and distal part of the same in sternal view (E). FG: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Left third maxilliped (F) and left G1 in sternal view. (G). Scales for AC=1mm, BEFG=2 mm, D=0.5mm." figureDoi="http://doi.org/10.5281/zenodo.13826482" httpUri="https://zenodo.org/record/13826482/files/figure.png" pageId="15" pageNumber="22">Fig. 15F</figureCitation>
). The male pleon is comparatively wide, with the bulged sixth pleonite (
<figureCitation id="0B8793A9FF8AFFB4F1DECAB95972FD6F" box="[752,839,666,690]" captionStart="Fig" captionStartId="16.[163,196,1689,1711]" captionTargetBox="[159,1217,215,1654]" captionTargetId="figure-9@16.[157,1218,213,1655]" captionTargetPageId="16" captionText="Fig. 8. Trierarchus squamosus (Stehenson and Hudson 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Carapace in dorsal view (A), abdomen (B), both chelipeds in outer (C) and upper (D) views." figureDoi="http://doi.org/10.5281/zenodo.13826462" httpUri="https://zenodo.org/record/13826462/files/figure.png" pageId="15" pageNumber="22">Fig. 8B</figureCitation>
). Both chelipeds are somewhat different in size and shape (
<figureCitation id="0B8793A9FF8AFFB4F0E2CA9E5E77FD08" box="[972,1090,701,725]" captionStart="Fig" captionStartId="16.[163,196,1689,1711]" captionTargetBox="[159,1217,215,1654]" captionTargetId="figure-9@16.[157,1218,213,1655]" captionTargetPageId="16" captionText="Fig. 8. Trierarchus squamosus (Stehenson and Hudson 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Carapace in dorsal view (A), abdomen (B), both chelipeds in outer (C) and upper (D) views." figureDoi="http://doi.org/10.5281/zenodo.13826462" httpUri="https://zenodo.org/record/13826462/files/figure.png" pageId="15" pageNumber="22">Fig. 8CD</figureCitation>
); the surfaces of the carpus and palm are of somewhat squamous appearance with depressed granules of variable sizes; the fingers are strongly and irregularly toothed throughout the lengths of both cutting edges. The G1 was roughly figured by Stephenson and Hudson (1957: fig. 2K) and in the present paper (
<figureCitation id="0B8793A9FF8AFFB4F04FCB8C59F1FC1A" box="[865,964,943,967]" captionStart="Fig" captionStartId="28.[163,196,1571,1593]" captionTargetBox="[215,1161,213,1537]" captionTargetId="figure-9@28.[214,1162,213,1537]" captionTargetPageId="28" captionText="Fig. 15. AB: Palicoides whitei (Miers), ♂(NSMT-Cr 31000; cb 7.0×cl 4.7mm). Left orbital region, with third maxilliped, in ventral view (A) and right G1 in sternal view (B). Arrow in Fig. A shows a curved tubercle extending from the eyestalk to guard the cornea. CE: Neopalicus jukesii (White), ♂ (NSMT-Cr 30997; cb 8.2×cl 7.3mm). Left third maxilliped (C), G1 in ventral view (D) and distal part of the same in sternal view (E). FG: Trierarchus squamosus (Stephenson and Hudson, 1957), ♂ (NSMT-Cr 30977; cb 12.6×cl 8.7mm). Left third maxilliped (F) and left G1 in sternal view. (G). Scales for AC=1mm, BEFG=2 mm, D=0.5mm." figureDoi="http://doi.org/10.5281/zenodo.13826482" httpUri="https://zenodo.org/record/13826482/files/figure.png" pageId="15" pageNumber="22">Fig. 15G</figureCitation>
); the shaft is stout, parallel-sided throughout the length, strongly curved at the middle.
</paragraph>
</subSubSection>
<subSubSection id="DBA6DCA7FF8AFFB4F1F3CC345EB0FBA8" pageId="15" pageNumber="22" type="distribution">
<paragraph id="93038F2CFF8AFFB4F1F3CC345EB0FBA8" blockId="15.[707,1237,215,1141]" pageId="15" pageNumber="22">
<emphasis id="A1C8533EFF8AFFB4F1F3CC34596FFBF2" box="[733,858,1047,1071]" italics="true" pageId="15" pageNumber="22">Distribution</emphasis>
. The Great Barrier Reef;
<collectingRegion id="517841CEFF8AFFB4F1EDCC195910FB8F" box="[707,805,1082,1106]" country="Marshall Islands" name="Rongelap" pageId="15" pageNumber="22">Rongelap</collectingRegion>
and Bikini Atolls in the
<collectingCountry id="EBABCFBCFF8AFFB4F70DCC195EE5FB8F" box="[1059,1232,1082,1106]" name="Marshall Islands" pageId="15" pageNumber="22">Marshall Islands</collectingCountry>
,
<quantity id="544422C9FF8AFFB4F1EDCC7F592FFBA9" box="[707,794,1116,1140]" metricMagnitude="1" metricUnit="m" metricValue="5.0" metricValueMax="5.5" metricValueMin="4.5" pageId="15" pageNumber="22" unit="m" value="50.0" valueMax="55.0" valueMin="45.0">4555 m</quantity>
in depth. New to the
<collectingCountry id="EBABCFBCFF8AFFB4F0D8CC7E5E1AFBA8" box="[1014,1071,1117,1141]" name="Palau" pageId="15" pageNumber="22">Palau</collectingCountry>
Islands.
</paragraph>
</subSubSection>
</treatment>
</document>