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<document id="49BDAE5127223BEA049D95348AA1923E" ID-DOI="10.11646/zootaxa.4088.3.1" ID-GBIF-Dataset="c09a5f42-c1ac-4b6c-a98d-d836a56711db" ID-ISSN="1175-5326" ID-Zenodo-Dep="267464" ID-ZooBank="D055AB86-A0A2-4E30-8671-4B0990C478FB" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1457597009995" checkinUser="plazi" docAuthor="Komai, Tomoyuki &amp; Chan, Tin-Yam" docDate="2016" docId="03D78781E242FF81D4A4FB1A09089D78" docLanguage="en" docName="15575-5104-1-PB.pdf.imf" docOrigin="Zootaxa 4088 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Trizocheles moosai Forest 1987" docType="treatment" docVersion="11" lastPageNumber="320" masterDocId="FFEEFFF9E250FF92D433FFE20D6A982D" masterDocTitle="“ Symmetrical ” hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the “ BIOPAPUA ” and “ PAPUA NIUGINI ” expeditions in the Papua New Guinea, with descriptions of two new species" masterLastPageNumber="328" masterPageNumber="301" pageNumber="319" updateTime="1698177513233" updateUser="plazi">
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<mods:title id="FA32D6C84C2C35A9DAA75932D7D798AA">“ Symmetrical ” hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the “ BIOPAPUA ” and “ PAPUA NIUGINI ” expeditions in the Papua New Guinea, with descriptions of two new species</mods:title>
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<mods:namePart id="E4D31A627C8463D94CB12990A9323064">Komai, Tomoyuki</mods:namePart>
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<mods:namePart id="FD4B6E10650D4A50E6971E3B96DB0881">Chan, Tin-Yam</mods:namePart>
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<mods:title id="A645D902F6D42811403FAFCF7AB814E5">Zootaxa</mods:title>
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<mods:date id="90089E50D07304589560B35A8789C315">2016</mods:date>
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<mods:number id="B5E75029C94DD6CFC3B1221910F80F44">4088</mods:number>
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<treatment id="03D78781E242FF81D4A4FB1A09089D78" ID-DOI="http://doi.org/10.5281/zenodo.6076081" ID-GBIF-Taxon="125783247" ID-Zenodo-Dep="6076081" LSID="urn:lsid:plazi:treatment:03D78781E242FF81D4A4FB1A09089D78" httpUri="http://treatment.plazi.org/id/03D78781E242FF81D4A4FB1A09089D78" lastPageId="19" lastPageNumber="320" pageId="18" pageNumber="319">
<subSubSection id="C364651CE242FF80D4A4FB1A09529D5E" pageId="18" pageNumber="319" type="nomenclature">
<paragraph id="8BC13697E242FF80D4A4FB1A0F749D3F" blockId="18.[151,542,1272,1298]" box="[151,542,1272,1298]" pageId="18" pageNumber="319">
<heading id="D08981FBE242FF80D4A4FB1A0F749D3F" bold="true" box="[151,542,1272,1298]" fontSize="11" level="1" pageId="18" pageNumber="319" reason="1">
<taxonomicName id="4C7E4D14E242FF80D4A4FB1A0F749D3F" ID-CoL="101d9e87-71b4-4d23-a299-febbd6acd9e4" authority="Forest, 1987" authorityName="Forest" authorityYear="1987" box="[151,542,1272,1298]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="18" pageNumber="319" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E242FF80D4A4FB1A0F749D3F" bold="true" box="[151,542,1272,1298]" pageId="18" pageNumber="319">
<emphasis id="B90AEA85E242FF80D4A4FB1A0C179D3F" bold="true" box="[151,381,1272,1298]" italics="true" pageId="18" pageNumber="319">Trizocheles moosai</emphasis>
Forest, 1987
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="8BC13697E242FF80D4A4FADC09529D5E" blockId="18.[151,1436,1342,1395]" pageId="18" pageNumber="319">
<taxonomicName id="4C7E4D14E242FF80D4A4FADC0F4E9D79" authority="Forest, 1987a: 181" authorityName="Forest" authorityPageNumber="181" authorityYear="1987" box="[151,548,1342,1364]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="18" pageNumber="319" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E242FF80D4A4FADC0C319D79" box="[151,347,1342,1364]" italics="true" pageId="18" pageNumber="319">Trizocheles moosai</emphasis>
Forest, 1987a: 181
</taxonomicName>
, figs. 7b, 47a, 48a–c, 51h, 58, 59d [type locality: Makassar Strait, Indonesia, 411–445 m]; 1987b: 315, fig. 2.—Lemaitre
<emphasis id="B90AEA85E242FF80D615FABC0F399D5E" box="[550,595,1373,1395]" italics="true" pageId="18" pageNumber="319">et al</emphasis>
. 2009: 5.—McLaughlin &amp; Lemaitre 2009: 221.
</paragraph>
</subSubSection>
<subSubSection id="C364651CE242FF80D4A4FA7D096B9F9D" pageId="18" pageNumber="319" type="materials_examined">
<paragraph id="8BC13697E242FF80D4A4FA7D0F609F69" blockId="18.[151,1437,1439,2005]" pageId="18" pageNumber="319">
<emphasis id="B90AEA85E242FF80D4A4FA7D0C139D95" bold="true" box="[151,377,1439,1464]" pageId="18" pageNumber="319">Material examined</emphasis>
. BIOPAPUA, stn CP 3671, N of Rabaul, 04°04’S, 151°56’E, 585–601 m, 24 September 2010, 1 male (sl 4.2 mm), MNHN-IU-2011-1091; same data, 2 females (sl 3.8, 4.3 mm), MNHN-IU-2011-3363; same data, 1 female (sl 4.1 mm), CBM-ZC 13127; stn DW 3688, S of Manus Island, 03°04’S, 147°32’E, 402–640 m, 28 September 2010, 1 male (sl 3.6 mm), MNHN-IU-2011-2300; stn CP 3689, SE of Manus Island, 02°16’S, 147°29’E, 685–679 m, 29 September 2010, 1 ovigerous female (sl 4.9 mm), MNHN-IU-2014-12072; stn CP 3690, SE of Manus Island, 02°14’S, 147°16’E, 611–618 m, 29 September 2010, 1 ovigerous female (sl 4.8 mm), MNHN- IU-2011-2723; stn CP 3708, off Madang, 04°58’S, 145°50’E, 502–529 m, 2 October 2010, 1 female (sl 6.1 mm), MNHN-IU-2011-2913; stn CP 3739, off Woodlark Islands, 09°09’S, 152°15’E, 503–546 m, 10 October 2010, 1 female (sl 3.7 mm), MNHN-IU-2011-3124; stn DW 3752, off Bougainville Island, 05°04’S, 154°31’E, 412 m, 13 October 2010, 1 male (sl 4.5 mm), MNHN-IU-2011-3035; stn CP 3760, off Feni Islands, 03°58’S, 153°43’E, 613– 660 m, 14 October 2010, 1 male (sl 3.2 mm), 1 female (sl 3.2 mm), MNHN-IU-2011-3554; same station, 1 male (sl 4.0 mm), MNHN-IU-2011-2477.
</paragraph>
<paragraph id="8BC13697E242FF80D4F4F8B2096B9F9D" blockId="18.[151,1437,1439,2005]" pageId="18" pageNumber="319">PAPUA NIUGINI, stn CP 3981, N of Long Island, Bismarck Sea, 05°11’S, 147°03’E, 688 m, 6 December 2012, 1 female (sl 4.9 mm), MNHN-IU-2013-14443; stn CP 4009, SE of Tuam Island, 06°04’S, 148°12’E, 550– 575 m, 11 December 2012, 2 males (sl 4.3, 4.4 mm), MNHN-IU-2013-14444.</paragraph>
</subSubSection>
<subSubSection id="C364651CE242FF81D4F4F85E09089882" lastPageId="19" lastPageNumber="320" pageId="18" pageNumber="319" type="description">
<paragraph id="8BC13697E242FF80D4F4F85E092D9FF8" blockId="18.[151,1437,1439,2005]" box="[199,1095,1980,2005]" pageId="18" pageNumber="319">
<emphasis id="B90AEA85E242FF80D4F4F85E0C3B9FF8" bold="true" box="[199,337,1980,2005]" pageId="18" pageNumber="319">Description</emphasis>
. See Forest (1987a: 181) and McLaughlin &amp; Lemaitre (2009: 221).
</paragraph>
<paragraph id="8BC13697E243FF81D4F4FF7509089882" blockId="19.[151,1437,151,1365]" box="[199,1122,151,176]" pageId="19" pageNumber="320">
<emphasis id="B90AEA85E243FF81D4F4FF750D9D989D" bold="true" box="[199,247,151,176]" pageId="19" pageNumber="320">Size</emphasis>
. Largest male sl 4.5 mm, largest female sl 6.1 mm, ovigerous female 4.8 mm.
</paragraph>
</subSubSection>
<subSubSection id="C364651CE243FF81D4F4FF5E09D198D5" pageId="19" pageNumber="320" type="distribution">
<paragraph id="8BC13697E243FF81D4F4FF5E09D198D5" blockId="19.[151,1437,151,1365]" pageId="19" pageNumber="320">
<emphasis id="B90AEA85E243FF81D4F4FF5E0C3398F8" bold="true" box="[199,345,188,213]" pageId="19" pageNumber="320">Distribution</emphasis>
. Previously known only from the Makassar Strait, Indonesia, 411 m depth (McLaughlin &amp; Lemaitre 2009). Newly recorded from Papua New Guinea (Bismarck Sea), 402–688 m depths.
</paragraph>
</subSubSection>
<subSubSection id="C364651CE243FF81D4F4FEE70C269C18" pageId="19" pageNumber="320" type="discussion">
<paragraph id="8BC13697E243FF81D4F4FEE70F479B70" blockId="19.[151,1437,151,1365]" pageId="19" pageNumber="320">
<emphasis id="B90AEA85E243FF81D4F4FEE70C5E9931" bold="true" box="[199,308,261,284]" pageId="19" pageNumber="320">Remarks</emphasis>
.
<taxonomicName id="4C7E4D14E243FF81D577FEE60F779931" box="[324,541,260,285]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D577FEE60F779931" box="[324,541,260,285]" italics="true" pageId="19" pageNumber="320">Trizocheles moosai</emphasis>
</taxonomicName>
was known only from the male holotype, and thus intraspecific variation was unknown. The present specimens are referred to
<taxonomicName id="4C7E4D14E243FF81D6FAFECA0E5D9912" box="[713,823,296,319]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D6FAFECA0E5D9912" box="[713,823,296,319]" italics="true" pageId="19" pageNumber="320">T. moosai</emphasis>
</taxonomicName>
because of the following characters: ocular peduncle stout, with corneal diameter 0.35–0.50 of length of ocular peduncle; chelipeds equal and similar in size and armature, palms bearing rows of spines; dactyli of second and third pereopods unarmed on dorsal margins; propodi of second pereopods each without dorsodistal spine or dorsal row of spines, but with numerous stridulatory rods or tubercles on mesial face; and carpi of third pereopods each with only small dorsodistal spine. In the present specimens, slight degree of intraspecific variation is seen in the following particulars: the ocular peduncle is 0.5– 0.6 times as long as the shield; the antennular peduncle overreaches the distal corneal margin by the entire to 0.9 length of the ultimate segment when fully extended anteriorly; the antennal peduncle falls slightly short of or just reaches the distal corneal margin. In the holotype, the ocular peduncle is 0.5 times as long as the shield; the antennular peduncle overreaches the distal corneal margin by the entire length of the ultimate segment; the antennal peduncle just reaches the distal corneal margin (Forest 1987a). The holotype differs from the present specimens in having more elongate terminal spine of the ocular acicle and the presence of two spinules on the lateral margin of the shield located posterior to the midlength. In the present specimens, each lateral margin of the shield is unarmed or armed with one minute tubercle or granule. On the other hand, the arrangement of the stridulatory rods or ridges on mesial faces of propodi of the second pereopods seems to be consistent between the holotype and the present specimens.
</paragraph>
<paragraph id="8BC13697E243FF81D4F4FC850C269C18" blockId="19.[151,1437,151,1365]" pageId="19" pageNumber="320">
<taxonomicName id="4C7E4D14E243FF81D4F4FC850CF59B52" box="[199,415,871,896]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D4F4FC850CF59B52" box="[199,415,871,896]" italics="true" pageId="19" pageNumber="320">Trizocheles moosai</emphasis>
</taxonomicName>
is morphologically very similar to
<taxonomicName id="4C7E4D14E243FF81D71CFC8A0EE39BAD" box="[815,905,871,896]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="boasi">
<emphasis id="B90AEA85E243FF81D71CFC8A0EE39BAD" box="[815,905,871,896]" italics="true" pageId="19" pageNumber="320">T. boasi</emphasis>
</taxonomicName>
. McLaughlin &amp; Lemaitre (2009) distinguished the two species by the extension of the antennular peduncle, but the present study demonstrates that this character is not reliable owing to variation, as noted above. Nevertheless,
<taxonomicName id="4C7E4D14E243FF81D76CFC520EDC9BE5" box="[863,950,943,968]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="boasi">
<emphasis id="B90AEA85E243FF81D76CFC520EDC9BE5" box="[863,950,943,968]" italics="true" pageId="19" pageNumber="320">T. boasi</emphasis>
</taxonomicName>
can be distinguished from
<taxonomicName id="4C7E4D14E243FF81D0D6FC52083B9BEA" box="[1253,1361,944,967]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D0D6FC52083B9BEA" box="[1253,1361,944,967]" italics="true" pageId="19" pageNumber="320">T. moosai</emphasis>
</taxonomicName>
by the slender propodi of the second pereopods (4.0–5.0 times as long as wide versus less than 3.5 times as long) with mesial faces unarmed or armed with only a few stridulatory rods or tubercles (Forest 1987a; McLaughlin &amp; Lemaitre 2009).
</paragraph>
</subSubSection>
<subSubSection id="C364651CE243FF81D4F4FBDD09089D78" pageId="19" pageNumber="320" type="description">
<paragraph id="8BC13697E243FF81D4F4FBDD09089D78" blockId="19.[151,1437,151,1365]" pageId="19" pageNumber="320">
<taxonomicName id="4C7E4D14E243FF81D4F4FBDD0CD59C75" box="[199,447,1087,1112]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="albatrossi">
<emphasis id="B90AEA85E243FF81D4F4FBDD0CD59C75" box="[199,447,1087,1112]" italics="true" pageId="19" pageNumber="320">Trizocheles albatrossi</emphasis>
</taxonomicName>
and
<taxonomicName id="4C7E4D14E243FF81D5C8FBA20FE99C75" box="[507,643,1087,1112]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="laurentae">
<emphasis id="B90AEA85E243FF81D5C8FBA20FE99C75" box="[507,643,1087,1112]" italics="true" pageId="19" pageNumber="320">T. laurentae</emphasis>
</taxonomicName>
are also rather similar to
<taxonomicName id="4C7E4D14E243FF81D782FBA2094A9C7A" box="[945,1056,1088,1111]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D782FBA2094A9C7A" box="[945,1056,1088,1111]" italics="true" pageId="19" pageNumber="320">T. moosai</emphasis>
</taxonomicName>
.
<taxonomicName id="4C7E4D14E243FF81D003FBDD08429C75" box="[1072,1320,1087,1112]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="albatrossi">
<emphasis id="B90AEA85E243FF81D003FBDD08429C75" box="[1072,1320,1087,1112]" italics="true" pageId="19" pageNumber="320">Trizocheles albatrossi</emphasis>
</taxonomicName>
is readily distinguished from
<taxonomicName id="4C7E4D14E243FF81D542FB870CB79C51" box="[369,477,1125,1148]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D542FB870CB79C51" box="[369,477,1125,1148]" italics="true" pageId="19" pageNumber="320">T. moosai</emphasis>
</taxonomicName>
by the more slender ocular peduncle (the corneal diameter is about 0.20 of the ocular peduncle length versus 0.35–0.50), shorter antennal peduncle (falling short of the lateral base of the cornea versus distinctly overreaching it) and fewer stridulatory rods or ridges on the mesial faces of propodi of the second pereopods (Forest 1987a; Komai 2013).
<taxonomicName id="4C7E4D14E243FF81D65EFB2D0E089CC5" box="[621,866,1231,1256]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="laurentae">
<emphasis id="B90AEA85E243FF81D65EFB2D0E089CC5" box="[621,866,1231,1256]" italics="true" pageId="19" pageNumber="320">Trizocheles laurentae</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C7E4D14E243FF81D033FB3309059CC5" box="[1024,1135,1233,1256]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D033FB3309059CC5" box="[1024,1135,1233,1256]" italics="true" pageId="19" pageNumber="320">T. moosai</emphasis>
</taxonomicName>
in the less dilated cornea being subequal to the basal width of the ocular peduncle and in having a broad median indentation on the terminal margin of the sixth pleomere (Forest 1987a; McLaughlin &amp; Lemaitre 2009). In
<taxonomicName id="4C7E4D14E243FF81D026FAFB09EB9D1D" box="[1045,1153,1305,1328]" class="Malacostraca" family="Pylochelidae" genus="Trizocheles" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="320" phylum="Arthropoda" rank="species" species="moosai">
<emphasis id="B90AEA85E243FF81D026FAFB09EB9D1D" box="[1045,1153,1305,1328]" italics="true" pageId="19" pageNumber="320">T. moosai</emphasis>
</taxonomicName>
, the cornea is wider than the base of the ocular peduncle and the terminal margin of the sixth pleomere is entire.
</paragraph>
</subSubSection>
</treatment>
</document>
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