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<mods:title id="44C849E66640A92126686F7794F339BA">New records of Tylokepon with the description of a new species (Epicaridea, Bopyridae, Keponinae)</mods:title>
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<mods:namePart id="55074185E2D5CFBED60212713FC323CD">An, Jianmei</mods:namePart>
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<mods:namePart id="FFDAC6A4AFEE95D0827D0236FA705CF7">Zhang, Miao</mods:namePart>
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<mods:namePart id="5A4DD3B203D09B3542609AA91D05D730">Paulay, Gustav</mods:namePart>
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<treatment id="A4538BFD204395BD3942241BBB8A1E1F" ID-GBIF-Taxon="148771520" LSID="urn:lsid:plazi:treatment:A4538BFD204395BD3942241BBB8A1E1F" httpUri="http://treatment.plazi.org/id/A4538BFD204395BD3942241BBB8A1E1F" lastPageId="6" lastPageNumber="83" pageId="3" pageNumber="80">
<subSubSection id="2329DC013AADA81FC81134334B214021" pageId="3" pageNumber="80" type="nomenclature">
<paragraph id="DA3E2DC8DF4AFBAED5B9507FE7E9E7EB" pageId="3" pageNumber="80">
<taxonomicName id="3322991E212D7BE41BFF134D2C171983" ID-CoL="59TF3" authority="Stebbing, 1904" authorityName="Stebbing" authorityYear="1904" class="Malacostraca" family="Bopyridae" genus="Tylokepon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylokepon bonnieri" order="Isopoda" pageId="3" pageNumber="80" phylum="Arthropoda" rank="species" species="bonnieri">Tylokepon bonnieri Stebbing, 1904</taxonomicName>
Figure 2
</paragraph>
</subSubSection>
<subSubSection id="48DAC0A6DB3A8909EB914C2425CC8FC3" pageId="4" pageNumber="81" type="reference_group">
<paragraph id="6CA50F66A26A61AE1CD7D58A8372A62F" pageId="4" pageNumber="81">
<taxonomicName id="AF7594DD5A8D92682D174A4AF0BFCA75" class="Malacostraca" family="Bopyridae" genus="Tylokepon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylokepon bonnieri" order="Isopoda" pageId="4" pageNumber="81" phylum="Arthropoda" rank="species" species="bonnieri">
<pageBreakToken id="381A6D154B08D38E09A9C5EB69B06D7D" pageId="4" pageNumber="81" start="start">Tylokepon</pageBreakToken>
bonnieri
</taxonomicName>
Stebbing, 1904: 716-717, pl. LIII, B, C;
<bibRefCitation id="4245F85725FE0962C110749D0FA12515" author="Shiino, SM" journalOrPublisher="Mie Medical Journal" pageId="8" pageNumber="85" pagination="151 - 167" title="Notes on some new bopyrids from Japan." volume="1" year="1950">Shiino 1950</bibRefCitation>
: 166;
<bibRefCitation id="781C988A544D6C2A72ED63C71712C61C" pageId="4" pageNumber="81">Pillai 1954</bibRefCitation>
: 19; Pillai 1964: 187-188, figs. 7-11;
<bibRefCitation id="38DE614DE49E5CE89AD0EB2347DD878D" author="An, JM" journalOrPublisher="Integrative and Comparative Biology" pageId="7" pageNumber="84" pagination="95 - 105" title="A review of bopyrid isopods infesting crabs from China." url="https://doi.org/10.1093/icb/icp022" volume="49" year="2009">An 2009</bibRefCitation>
: 96-98.
</paragraph>
</subSubSection>
<subSubSection id="840966CC379A06EADAC402F7684FCD1D" pageId="4" pageNumber="81" type="materials_examined">
<paragraph id="C446385C089794FD8F70F0CC11E70443" pageId="4" pageNumber="81">Material examined.</paragraph>
<paragraph id="2033C0E6226DF080F55311EFC855A3FD" pageId="4" pageNumber="81">
UF 42219: 1♀, 1♂, Australia, Queensland, Lizard Island, north side, at &quot;Washing Machine,
<geoCoordinate id="ACBB896A66537EB7A46E2860235CACE5" direction="south" orientation="latitude" precision="9" value="-14.650333">14°39.02'S</geoCoordinate>
,
<geoCoordinate id="73012693F0979CA8F3482234E0B670B1" direction="east" orientation="longitude" precision="9" value="145.46217">145°27.73'E</geoCoordinate>
, from dead
<taxonomicName id="3E6F3BB669EB6DBC0F7FE302C3BFC1B4" class="Anthozoa" family="Pocilloporidae" genus="Pocillopora" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pocillopora" order="Scleractinia" pageId="4" pageNumber="81" phylum="Cnidaria" rank="genus">Pocillopora</taxonomicName>
, 21 February 2009, coll. Molly Timmers. Infesting right branchial chamber of
<taxonomicName id="24078EF6C8452F74A345DB510604799C" class="Malacostraca" family="Epialtidae" genus="Tylocarcinus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylocarcinus styx" order="Decapoda" pageId="4" pageNumber="81" phylum="Arthropoda" rank="species" species="styx">Tylocarcinus styx</taxonomicName>
(Herbst, 1803) (UF 18294).
</paragraph>
</subSubSection>
<subSubSection id="870A2BB7C2EE856CD89CB95856C34893" lastPageId="6" lastPageNumber="83" pageId="5" pageNumber="82" type="description">
<paragraph id="25D8F699BD839841B6EA162E7CD4BB1B" pageId="5" pageNumber="82">
<pageBreakToken id="D43DE0DCC96FBEAD06FE01A63FC14A63" pageId="5" pageNumber="82" start="start">Description</pageBreakToken>
of female.
</paragraph>
<paragraph id="9AAF1227A281933E3A6A6D9B5863068D" pageId="5" pageNumber="82">Length 3.58 mm (excluding uropods), maximum width 2.28 mm across pereomere 3, head length 0.66 mm, head width 1.26 mm. (Figure 2A).</paragraph>
<paragraph id="8B874A809D610F1956C5FBE2BF318D8C" lastPageId="6" lastPageNumber="83" pageId="5" pageNumber="82">
Head large, covering pereomere 1, wider than long, completely bilobed, with two ellipsoid structures separated by a deep median groove. Frontal lamina narrow, visible in dorsal view. Small black eyes near frontal lamina (Figure 2A). First and second antennae rudimentary, with three and five articles, respectively, terminally setose (Figure 2B). Barbula (Figure 2C) with two large falcate projections and a mediad sharp
<pageBreakToken id="283384B047DD39FB4D5FD8B3ACA829D9" pageId="6" pageNumber="83" start="start">projection</pageBreakToken>
on each side. Anterior article of maxilliped (Figure 2D) much larger than posterior one, with prominent, inwardly-directed and setose palp, plectron short.
</paragraph>
<paragraph id="C0A63FFEF2A322D0DFA052F4BDA3382D" pageId="6" pageNumber="83">Pereon broadest across pereomere 3. Head covering much of pereomere 1. Distinct dorsolateral bosses on first four pereomeres on both sides. Coxal plates absent. Tergal projection present on pereomeres 2 and 3. Middorsal projections on last two pereomeres: three parallel projections on pereomere 6, one large and posteriorly extended projection on pereomere 7 (Figure 2A). Brood pouch incompletely covered by oostegites. Oostegite 1 (Figure 2E, F) composed of two subequal in size articles, with smooth internal ridge that bears three marginal projections; ending in extended posterolateral point. Pereopod 1 much smaller than others, all pereopods with short dactyli (Figure 2G, H).</paragraph>
<paragraph id="C1F4EE40697B6DE3A5274F5020AAC15D" pageId="6" pageNumber="83">Pleon of six distinct pleomeres, first five with well-developed, tuberculate lateral plates, and biramous, tuberculate pleopods. All lateral plates and exopodites of pleopods with digitate margins. Endopodites of pleopods 1-5 small and smooth (Figure 2A). Uniramous uropods similar to exopodites of pleopod 5.</paragraph>
<caption id="2924433B5EE805990891F320F1317541" pageId="6" pageNumber="83">
<paragraph id="8F34625C5047BAC84FFA243325CD73B3" pageId="6" pageNumber="83">
Figure 2.
<taxonomicName id="835927C2E75FE19D0634BA5BB660909F" class="Malacostraca" family="Bopyridae" genus="Tylokepon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylokepon bonnieri" order="Isopoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="bonnieri">Tylokepon bonnieri</taxonomicName>
Stebbing, 1904. Female (UF 42219) (
<normalizedToken id="1755E8014D4152E6306E4E2988F5CB7F" originalValue="AH">A-H</normalizedToken>
). A Dorsal view B Right antennae C Barbula, left side D Left maxilliped, external view E Left oostegite 1, external view F Left oostegite 1, internal view G Right pereopod 1 H Left pereopod 5. Male (UF 42219) (
<normalizedToken id="7C109FF0F20AA0DE04925F8AA0A39AE6" originalValue="IK">I-K</normalizedToken>
). I Dorsal view J Left antenna K Pleon, ventral view. Scale bars: 1.00 mm (A); 0.65 mm (C); 0.42 mm (
<normalizedToken id="26B942E1C96C0EE965A79493F34FB064" originalValue="DF">D-F</normalizedToken>
); 0.31 mm (B, G, H, J); 0.42 mm (I, K).
</paragraph>
</caption>
</subSubSection>
<subSubSection id="61C99841783D8F259D87506B063B1243" pageId="6" pageNumber="83" type="description">
<paragraph id="37A8F8AD2C0D014946D50374686D00A4" pageId="6" pageNumber="83">Description of male.</paragraph>
<paragraph id="22D719D60AE0A64544FE2E6E4BCC5A26" pageId="6" pageNumber="83">Length 1.08 mm, maximal width 0.32 mm, across pereomere 3, head length 0.11 mm, head width 0.16 mm, pleonal length 0.39 mm. Body gradually tapered posteriorly, all segments distinct (Figure 2I).</paragraph>
<paragraph id="0FE92A4AB1106BB95DB712EA44C2D2FD" pageId="6" pageNumber="83">Head semicircular, broader than long; without eyes. First and second antennae of three and five articles, respectively (Figure 2J), basal articles greatly expanded, final articles fringed with setae. Pereon broadest across pereomere 3. Pleon of six segments, first five pleomeres with tuberculate uniramous pleopods. Pleomere 6 bilobed, with tuberculate projections and setae (Figure 2K).</paragraph>
</subSubSection>
<subSubSection id="CAEC91C36EFA7125738BB6C4B6D86A20" pageId="6" pageNumber="83" type="remarks">
<paragraph id="3F44A8D64A2F5D6CE8A8B853EE7BD9F5" pageId="6" pageNumber="83">Remarks.</paragraph>
<paragraph id="A2BCF0ECE91565F79F6FD9767FBDD91C" pageId="6" pageNumber="83">
<bibRefCitation id="C0C3899BEE01945D6DAA9E6D0F055845" pageId="6" pageNumber="83">Stebbing (1904)</bibRefCitation>
erected
<taxonomicName id="DAE7E04886BF17AE17809D8DE8B12A1E" class="Malacostraca" family="Bopyridae" genus="Tylokepon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylokepon" order="Isopoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="genus">Tylokepon</taxonomicName>
for
<taxonomicName id="9781E07C18B7753A35F0D9F19328F8BA" lsidName="T. bonnieri" pageId="6" pageNumber="83" rank="species" species="bonnieri">T. bonnieri</taxonomicName>
infesting
<taxonomicName id="D6851E91F1ABCFF9EB15E98E3E05A2E0" class="Malacostraca" family="Epialtidae" genus="Tylocarcinus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylocarcinus styx" order="Decapoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="styx">Tylocarcinus styx</taxonomicName>
from the Indian Ocean.
<bibRefCitation id="F2A2D374D0F489A5BE7FE9BFACAF0C83" pageId="6" pageNumber="83">Pillai (1954</bibRefCitation>
,
<bibRefCitation id="E4A8A96776A549D0C45B87AE014BD72C" author="Pillai, NK" journalOrPublisher="Crustaceana" pageId="8" pageNumber="85" pagination="183 - 191" title="Isopod parasites of south Indian crustaceans." url="https://doi.org/10.1163/156854066X00702" volume="10" year="1966">1966</bibRefCitation>
) recorded the species from Kovalam, southwest India, infesting
<taxonomicName id="9A80E12726DBD865A95087662252FD67" class="Malacostraca" family="Epialtidae" genus="Menaethius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Menaethius monoceros" order="Decapoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="monoceros">Menaethius monoceros</taxonomicName>
.
<bibRefCitation id="A5960482D6D3157822A98B9D66A49CAA" author="An, JM" journalOrPublisher="Integrative and Comparative Biology" pageId="7" pageNumber="84" pagination="95 - 105" title="A review of bopyrid isopods infesting crabs from China." url="https://doi.org/10.1093/icb/icp022" volume="49" year="2009">An (2009)</bibRefCitation>
reported it from Beibu Gulf and Hainan, China, infesting
<taxonomicName id="687B10E660424BEB1A409046CF838C5F" class="Malacostraca" family="Epialtidae" genus="Hyastenus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyastenus diacanthus" order="Decapoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="diacanthus">Hyastenus diacanthus</taxonomicName>
and the parthenopid crab
<taxonomicName id="5D9C328EA3D3A645CF07B08EDCACC1D6" class="Malacostraca" family="Parthenopidae" genus="Enoplolambrus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Enoplolambrus validus" order="Decapoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="validus">Enoplolambrus validus</taxonomicName>
(De Haan, 1837). Although
<taxonomicName id="7CEC42BDB441B1DAD75E544D8AE69956" class="Malacostraca" family="Epialtidae" genus="Hyastenus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyastenus diacanthus" order="Decapoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="diacanthus">Hyastenus diacanthus</taxonomicName>
was recorded to be infested by
<taxonomicName id="FDEE997D594A45D25194F3F485FB8677" class="Malacostraca" family="Bopyridae" genus="Tylokepon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tylokepon naxiae" order="Isopoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="naxiae">Tylokepon naxiae</taxonomicName>
from Hong Kong, it is not impossible that a single host is found bearing two different species, such as the case of
<taxonomicName id="80825ECE4681E6943BE7793355E1BF65" genus="Petrolishthes" lsidName="Petrolishthes quadratus" pageId="6" pageNumber="83" rank="species" species="quadratus">Petrolishthes quadratus</taxonomicName>
Benedict, 1901 bearing
<taxonomicName id="12DA44A00C2831BEB041166E54436039" class="Malacostraca" family="Bopyridae" genus="Aporobopyrus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Aporobopyrus crutatus" order="Isopoda" pageId="6" pageNumber="83" phylum="Arthropoda" rank="species" species="crutatus">Aporobopyrus crutatus</taxonomicName>
(Richardson, 1910) and
<taxonomicName id="EA777BFD585F849EA1870BE428E5234C" lsidName="A. bonairensis" pageId="6" pageNumber="83" rank="species" species="bonairensis">A. bonairensis</taxonomicName>
Markham, 1988.
</paragraph>
<paragraph id="574244677FB02C15817F9991A3D3DD79" pageId="6" pageNumber="83">
As for
<taxonomicName id="EC0A1E00769144D7DEB825CFF82C0E08" lsidName="T. naxiae" pageId="6" pageNumber="83" rank="species" species="naxiae">T. naxiae</taxonomicName>
,
<bibRefCitation id="5F954DACDF29796476895F4239A1A3D6" author="Bonnier, J" journalOrPublisher="Travaux de l'lnstitut Zoologique de Lille et du Laboratoire de Zoologie Maritime de Wimereux" pageId="7" pageNumber="84" pagination="1 - 478" title="Contribution a l'etude des epicarides. Les Bopyridae." volume="8" year="1900">Bonnier (1900)</bibRefCitation>
only gave a brief description, and
<bibRefCitation id="4E677843F5017B7289C850691793C35B" pageId="6" pageNumber="83">Markham (1982)</bibRefCitation>
found that the holotype female is badly damaged, and only three useful characters can be defined. However, from the figure (
<bibRefCitation id="750F9A781021F3BC066298443C2D0C6C" pageId="6" pageNumber="83">Markham 1982</bibRefCitation>
: fig. 18), it can be seen that the species has an almost smooth surface to the pleopods and the lateral plates are not covered with tuberculate (while the pleopods and lateral plates of
<taxonomicName id="0469840F04C3C082346A4BC5B123671B" lsidName="T. bonnieri" pageId="6" pageNumber="83" rank="species" species="bonnieri">T. bonnieri</taxonomicName>
are densely covered with tubercles). Therefore,
<taxonomicName id="71F8CB311A3AE26A13F1ECEE1E9E3F98" lsidName="T. bonnieri" pageId="6" pageNumber="83" rank="species" species="bonnieri">T. bonnieri</taxonomicName>
differs from
<taxonomicName id="9E994A526C2DA9EC9EE7B6EC439486DA" lsidName="T. naxiae" pageId="6" pageNumber="83" rank="species" species="naxiae">T. naxiae</taxonomicName>
.
</paragraph>
<paragraph id="F060890A2348441BA8E8EE246F1AEC3D" pageId="6" pageNumber="83">
The present specimens conform well to
<normalizedToken id="D0E63AC99B8E0BB8FE09698198823019" originalValue="Stebbings">Stebbing's</normalizedToken>
description (1904), except for some minor differences, such as the male specimen lacking eyes. There are slight differences between the present specimens and those from Beibu Gulf (
<bibRefCitation id="6501404A3BFA79ACD652AF7CADC7D3EA" author="An, JM" journalOrPublisher="Integrative and Comparative Biology" pageId="7" pageNumber="84" pagination="95 - 105" title="A review of bopyrid isopods infesting crabs from China." url="https://doi.org/10.1093/icb/icp022" volume="49" year="2009">An 2009</bibRefCitation>
) in the middorsal projections on pereopod 6 and frontal lamina of the head, but the key characters of the females, such as oostegite 1, maxilliped, barbula, lateral plates and pleopods, as well as of males, are similar.
</paragraph>
</subSubSection>
</treatment>
</document>