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<document id="72FC6B2EC4C7C90280D5864EAECCA4F2" ID-DOI="10.12651/JSR.2016.5.3.459" ID-ISSN="2713-8615" ID-Zenodo-Dep="13143332" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1722427599455" checkinUser="felipe" docAuthor="Ahn, Dong-Ha &amp; Min, Gi-Sik" docDate="2016" docId="7E548046616B494EFCE95783FDADF85B" docLanguage="en" docName="JSpeciesRes.5.3.459-462.pdf" docOrigin="Journal of Species Research 5 (3)" docSource="http://dx.doi.org/10.12651/jsr.2016.5.3.459" docStyle="DocumentStyle:4D398BFF45FF8CA9E08F546BB06AE372.2:JSpeciesRes.2012-.journal_article" docStyleId="4D398BFF45FF8CA9E08F546BB06AE372" docStyleName="JSpeciesRes.2012-.journal_article" docStyleVersion="2" docTitle="Holtodrilus truncatus Nj" docType="treatment" docVersion="2" lastPageNumber="461" masterDocId="826DF83E616A494CFFC05256FFBFFF90" masterDocTitle="First report of the branchiobdellidan Holtodrilus truncatus (Annelida: Clitellata) found on the freshwater atyid shrimp Neocaridina sp. from Korea" masterLastPageNumber="462" masterPageNumber="459" pageNumber="460" updateTime="1722427982745" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="96F92AA91D97A7D62051C1FFD7123D36">First report of the branchiobdellidan Holtodrilus truncatus (Annelida: Clitellata) found on the freshwater atyid shrimp Neocaridina sp. from Korea</mods:title>
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<paragraph id="F6423150616B494DFCE95783FB31F99E" blockId="1.[809,1414,1493,1808]" pageId="1" pageNumber="460">
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<emphasis id="C489ED42616B494DFCE95783FC4DF99E" bold="true" pageId="1" pageNumber="460">
<taxonomicName id="31FD4AD3616B494DFCE95783FCF7F99E" ID-CoL="3MBXD" authority="(Liang, 1963) Nj" authorityName="Nj" baseAuthorityName="Liang" baseAuthorityYear="1963" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="1" pageNumber="460" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED42616B494DFCE95783FBA9FA7D" bold="true" box="[809,1046,1493,1517]" italics="true" pageId="1" pageNumber="460">Holtodrilus truncatus</emphasis>
(
<bibRefCitation id="926C4CA1616B494DFBE25783FB14FA7D" author="Liang, Y. - L." box="[1058,1195,1493,1517]" pageId="1" pageNumber="460" pagination="560 - 570" refId="ref2121" refString="Liang, Y. - L. 1963. Studies on the aquatic Oligochaeta of China. I. Descriptions of new naids and branchiobdellids. Acta Zoologica Sinica 15: 560 - 570." type="journal article" year="1963">Liang, 1963</bibRefCitation>
) Nj
</taxonomicName>
ẹĄHƞmŠÑ
</emphasis>
(
<emphasis id="C489ED42616B494DFC3F57ACFB8EF99E" bold="true" box="[1023,1073,1530,1550]" pageId="1" pageNumber="460">ṳAE</emphasis>
) (
<figureCitation id="6EC62DD5616B494DFB8657A0FB3BF99E" box="[1094,1156,1526,1550]" captionStart="Fig" captionStartId="1.[144,177,1031,1053]" captionTargetBox="[207,1355,259,998]" captionTargetId="figure-389@1.[207,1355,259,998]" captionTargetPageId="1" captionText="Fig. 1. Holtodrilus truncatus (Liang, 1963) from the Andeok Valley, Jeju­do Province, South Korea. A. whole body (preserved); B. each jaw with a large median tooth and three pairs of small lateral teeth(3­1­3/3­1­3); C. live specimens of H. truncatus (marked with arrows) on the body surface of the freshwater atyid shrimp, Neocaridina sp. Scale bars:A =0.5 mm, B=20 μm." figureDoi="http://doi.org/10.5281/zenodo.13143334" httpUri="https://zenodo.org/record/13143334/files/figure.png" pageId="1" pageNumber="460">Fig. 1</figureCitation>
)
</heading>
</paragraph>
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<treatmentCitationGroup id="D6ED167E616B494DFCE95440FBA9F9DE" pageId="1" pageNumber="460">
<treatmentCitation id="775C1741616B494DFCE95440FA88F9BE" author="Liang, Y. - L." box="[809,1335,1558,1582]" page="567" pageId="1" pageNumber="460" year="1963">
<taxonomicName id="31FD4AD3616B494DFCE95440FA88F9BE" ID-CoL="52CC8" authority="Liang, 1963: 565 - 567" authorityName="Liang" authorityPageNumber="565 - 567" authorityYear="1963" box="[809,1335,1558,1582]" class="Clitellata" family="Branchiobdellidae" genus="Stephanodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="1" pageNumber="460" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED42616B494DFCE95440FB83F9BE" box="[809,1084,1558,1582]" italics="true" pageId="1" pageNumber="460">Stephanodrilus truncatus</emphasis>
<bibRefCitation id="926C4CA1616B494DFB855440FA88F9BE" author="Liang, Y. - L." box="[1093,1335,1558,1582]" pageId="1" pageNumber="460" pagination="560 - 570" refId="ref2121" refString="Liang, Y. - L. 1963. Studies on the aquatic Oligochaeta of China. I. Descriptions of new naids and branchiobdellids. Acta Zoologica Sinica 15: 560 - 570." type="journal article" year="1963">Liang, 1963: 565-567</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, fig. 4;
<treatmentCitation id="775C1741616B494DFC805460FBAEF9DE" author="Liu, S. - C." box="[832,1041,1590,1615]" page="353" pageId="1" pageNumber="460" year="1984">
<bibRefCitation id="926C4CA1616B494DFC805460FBAEF9DE" author="Liu, S. - C." box="[832,1041,1590,1615]" pageId="1" pageNumber="460" pagination="351 - 355" refId="ref2156" refString="Liu, S. - C. 1984. Descriptions of two new species of the genus Stephanodrilus from northeast china and notes on St. truncatus Liang from Guangdong Province. Acta Zootaxonomica Sinica 9: 351 - 355." type="journal article" year="1984">Liu, 1984: 353­354</bibRefCitation>
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
<paragraph id="F6423150616B494DFCE95401FB92F880" blockId="1.[809,1414,1493,1808]" pageId="1" pageNumber="460">
<treatmentCitationGroup id="D6ED167E616B494DFCE95401FB92F880" pageId="1" pageNumber="460">
<treatmentCitation id="775C1741616B494DFCE95401FCD6F91F" author="Gelder, S. &amp; R. Brinkhurst" page="132" pageId="1" pageNumber="460" year="1990">
<taxonomicName id="31FD4AD3616B494DFCE95401FCD6F91F" ID-CoL="3MBXD" authority="Gelder and Brinkhurst, 1990: 1320 - 132" authorityName="Gelder and Brinkhurst, 1990:" authorityPageNumber="1320 - 132" authorityYear="1320" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="1" pageNumber="460" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED42616B494DFCE95401FBB5F9FE" box="[809,1034,1623,1647]" italics="true" pageId="1" pageNumber="460">Holtodrilus truncatus</emphasis>
<bibRefCitation id="926C4CA1616B494DFBD05401FCD6F91F" author="Gelder, S. &amp; R. Brinkhurst" pageId="1" pageNumber="460" pagination="1318 - 1326" refId="ref1953" refString="Gelder, S. and R. Brinkhurst. 1990. An assessment of the phylogeny of the Branchiobdellida (Annelida: Clitellata), using PAUP. Canadian Journal of Zoology 68: 1318 - 1326." type="journal article" year="1990">Gelder and Brinkhurst, 1990: 1320­ 132</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, fig. 3;
<treatmentCitation id="775C1741616B494DFC035421FB4DF91F" author="Niwa, N. &amp; J. Ohtomi &amp; A. Ohtaka &amp; S. R. Gelder" box="[963,1266,1655,1679]" page="685" pageId="1" pageNumber="460" year="2005">
<bibRefCitation id="926C4CA1616B494DFC035421FB4DF91F" author="Niwa, N. &amp; J. Ohtomi &amp; A. Ohtaka &amp; S. R. Gelder" box="[963,1266,1655,1679]" pageId="1" pageNumber="460" pagination="685 - 687" refId="ref2328" refString="Niwa, N., J. Ohtomi, A. Ohtaka and S. R. Gelder. 2005. The first record of the ectosymbiotic branchiobdellidan Holtodrilus truncatus (Annelida, Clitellata) and on the fresh-water shrimp Neocaridina denticulata denticulata (Caridea, Atyidae) in Japan. Fisheries Science 71: 685 - 687." type="journal article" year="2005">
Niwa
<emphasis id="C489ED42616B494DFBC6542EFB80F91F" box="[1030,1087,1655,1679]" italics="true" pageId="1" pageNumber="460">et al.</emphasis>
, 2005: 685­686
</bibRefCitation>
</treatmentCitation>
, fig. 1;
<treatmentCitation id="775C1741616B494DFA8B5421FBD9F93F" author="Niwa, N. &amp; A. Ohtaka" page="182" pageId="1" pageNumber="460" year="2006">
<bibRefCitation id="926C4CA1616B494DFA8B5421FBD9F93F" author="Niwa, N. &amp; A. Ohtaka" pageId="1" pageNumber="460" pagination="182 - 186" refId="ref2253" refString="Niwa, N. and A. Ohtaka. 2006. Accidental introduction of symbionts with imported freshwater shrimps. In: F. Koike, M. N. Clout, M. Kawamichi, M. De Poorter and K. Iwatsuki (eds.), Assessment and Control of Biological Invasion Risks, Gland, Shoukadoh Book Sellers, Kyoto, Japan and IUCN. pp. 182 - 186." type="book chapter" year="2006">Niwa and Ohtaka, 2006: 182-185</bibRefCitation>
</treatmentCitation>
, fig. 2;
<treatmentCitation id="775C1741616B494DFB7754C1FCD5F940" author="Ohtaka, A." page="486" pageId="1" pageNumber="460" year="2007">
<bibRefCitation id="926C4CA1616B494DFB7754C1FCD5F940" author="Ohtaka, A." pageId="1" pageNumber="460" pagination="483 - 489" refId="ref2387" refString="Ohtaka, A. 2007. Distribution of exotic branchiobdellidans (Annelida, Clitellata) in Japan. Japanese Journal of Limnology 68: 483 - 489." type="journal article" year="2007">Ohtaka, 2007: 486- 487</bibRefCitation>
</treatmentCitation>
, fig. 1;
<treatmentCitation id="775C1741616B494DFC0354E1FA89F940" author="Ohtaka, A. &amp; R. - T. Chen" box="[963,1334,1719,1744]" page="100" pageId="1" pageNumber="460" year="2010">
<bibRefCitation id="926C4CA1616B494DFC0354E1FA89F940" author="Ohtaka, A. &amp; R. - T. Chen" box="[963,1334,1719,1744]" pageId="1" pageNumber="460" pagination="97 - 110" refId="ref2415" refString="Ohtaka, A. and R. - T. Chen. 2010. New records of a branchiobdellidan and four microdrile oligochaetes (Annelida: Clitellata) from inland waters of Taiwan. Taiwan Journal of Biodiversity 12: 97 - 110." type="journal article" year="2010">Ohtaka and Chen, 2010: 100-102</bibRefCitation>
</treatmentCitation>
, fig. 2;
<treatmentCitation id="775C1741616B494DFC80548EFB1BF960" author="Ohtaka, A. &amp; S. Gelder &amp; M. Nishino &amp; M. Ikeda &amp; H. Toyama &amp; Y. - D. Cui &amp; X. - B. He &amp; H. - Z. Wang &amp; R. - B. Chen &amp; Z. - Y. Wang" box="[832,1188,1752,1776]" page="1547" pageId="1" pageNumber="460" year="2012">
<bibRefCitation id="926C4CA1616B494DFC80548EFB1BF960" author="Ohtaka, A. &amp; S. Gelder &amp; M. Nishino &amp; M. Ikeda &amp; H. Toyama &amp; Y. - D. Cui &amp; X. - B. He &amp; H. - Z. Wang &amp; R. - B. Chen &amp; Z. - Y. Wang" box="[832,1188,1752,1776]" pageId="1" pageNumber="460" pagination="1547 - 1556" refId="ref2459" refString="Ohtaka, A., S. Gelder, M. Nishino, M. Ikeda, H. Toyama, Y. - D. Cui, X. - B. He, H. - Z. Wang, R. - B. Chen and Z. - Y. Wang. 2012. Distributions of two ectosymbionts, branchiobdellidans (Annelida: Clitellata) and scutariellids (Platyhelminthes: &quot; Turbellaria &quot;: Temnocephalida), on atyid shrimp (Arthropoda: Crustacea) in southeast China. Journal of Natural History 46: 1547 - 1556." type="journal article" year="2012">
Ohtaka
<emphasis id="C489ED42616B494DFC58548EFC6DF960" box="[920,978,1752,1776]" italics="true" pageId="1" pageNumber="460">et al.</emphasis>
, 2012: 1547­1554
</bibRefCitation>
</treatmentCitation>
, fig. 1;
<treatmentCitation id="775C1741616B494DFAC0548EFC7CF880" author="Niwa, N. &amp; M. Archdale &amp; T. Matsuoka &amp; A. Kawamoto &amp; H. Nishiyama" page="80" pageId="1" pageNumber="460" year="2014">
<bibRefCitation id="926C4CA1616B494DFAC0548EFC7CF880" author="Niwa, N. &amp; M. Archdale &amp; T. Matsuoka &amp; A. Kawamoto &amp; H. Nishiyama" pageId="1" pageNumber="460" pagination="80 - 85" refId="ref2197" refString="Niwa, N., M. Archdale, T. Matsuoka, A. Kawamoto and H. Nishiyama. 2014. Microhabitat distribution and behaviour of Branchiobdellidan Holtodrilus truncatus found on the freshwater shrimp Neocaridina spp. from the Sugo Riv- er, Japan. Open Life Sciences 9: 80 - 85." type="journal article" year="2014">
Niwa
<emphasis id="C489ED42616B494DFA85548EFAC0F960" box="[1349,1407,1752,1776]" italics="true" pageId="1" pageNumber="460">et al.</emphasis>
, 2014: 80-84
</bibRefCitation>
</treatmentCitation>
, figs. 2-3.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="BEE762DB616B494DFCE95565FBD1F83C" pageId="1" pageNumber="460" type="materials_examined">
<paragraph id="F6423150616B494DFCE95565FBD1F83C" blockId="1.[808,1414,1843,1996]" pageId="1" pageNumber="460">
<emphasis id="C489ED42616B494DFCE95565FBB4F8DB" bold="true" box="[809,1035,1843,1867]" pageId="1" pageNumber="460">Material examined.</emphasis>
<materialsCitation id="46953B0D616B494DFBD45565FC06F81C" country="South Korea" county="Seogwipo-si" latitude="33.25" location="Gamsan-ri" longLatPrecision="1206" longitude="126.35" municipality="Andeok-myeon" pageId="1" pageNumber="460" specimenCount="1" stateProvince="Jeju">
<collectingCountry id="8EEA71C0616B494DFBD45565FBE7F8DA" box="[1044,1112,1843,1866]" name="South Korea" pageId="1" pageNumber="460">Korea</collectingCountry>
,
<collectingRegion id="3439FFB2616B494DFBA55565FAA0F8DB" box="[1125,1311,1843,1867]" country="South Korea" name="Jeju" pageId="1" pageNumber="460">Jeju­do Province</collectingRegion>
,
<collectingCounty id="1F2349DC616B494DFAEC5565FCE0F8FB" pageId="1" pageNumber="460">Seogwipo­si</collectingCounty>
,
<collectingMunicipality id="1626AB2A616B494DFCA85505FBB2F8FB" box="[872,1037,1875,1899]" pageId="1" pageNumber="460">Andeok­myeon</collectingMunicipality>
,
<location id="F322678B616B494DFBD75505FB3AF8FB" LSID="urn:lsid:plazi:treatment:7E548046616B494EFCE95783FDADF85B:F322678B616B494DFBD75505FB3AF8FB" box="[1047,1157,1875,1899]" country="South Korea" county="Seogwipo-si" latitude="33.25" longLatPrecision="1206" longitude="126.35" municipality="Andeok-myeon" name="Gamsan-ri" pageId="1" pageNumber="460" stateProvince="Jeju">Gamsan­ri</location>
(
<location id="F322678B616B494DFB505505FA91F8FB" LSID="urn:lsid:plazi:treatment:7E548046616B494EFCE95783FDADF85B:F322678B616B494DFB505505FA91F8FB" box="[1168,1326,1875,1899]" country="South Korea" county="Seogwipo-si" latitude="33.25" longLatPrecision="1206" longitude="126.35" municipality="Andeok-myeon" name="Andeok Valley" pageId="1" pageNumber="460" stateProvince="Jeju">Andeok Valley</location>
) (
<geoCoordinate id="93C95797616B494DFA815505FC81F81B" degrees="33" direction="north" minutes="15" orientation="latitude" pageId="1" pageNumber="460" precision="925" value="33.25">
33°15
<emphasis id="C489ED42616B494DFA405504FA39F8FC" bold="true" box="[1408,1414,1874,1900]" italics="true" pageId="1" pageNumber="460"></emphasis>
N
</geoCoordinate>
,
<geoCoordinate id="93C95797616B494DFC885525FC0DF81C" box="[840,946,1906,1932]" degrees="126" direction="east" minutes="21" orientation="longitude" pageId="1" pageNumber="460" precision="925" value="126.35">
126°21
<emphasis id="C489ED42616B494DFC535524FC26F81C" bold="true" box="[915,921,1906,1932]" italics="true" pageId="1" pageNumber="460"></emphasis>
E
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)
</materialsCitation>
,
<date id="82431790616B494DFC045522FBFAF81C" box="[964,1093,1908,1932]" pageId="1" pageNumber="460" value="2010-06-23">23 Jun 2010</date>
, D.H. Ahn;
<date id="82431790616B494DFB7F5522FAF8F81B" box="[1215,1351,1907,1932]" pageId="1" pageNumber="460" value="2015-08-23">23 Aug 2015</date>
, D.H. Ahn;
<date id="82431790616B494DFCA455C2FC4AF83C" box="[868,1013,1940,1964]" pageId="1" pageNumber="460" value="2016-05-18">18 May 2016</date>
, D.H. Ahn.
</paragraph>
</subSubSection>
<subSubSection id="BEE762DB616B494EFCE955E2FE5CFD30" lastPageId="2" lastPageNumber="461" pageId="1" pageNumber="460" type="diagnosis">
<paragraph id="F6423150616B494DFCE955E2FA39F85C" blockId="1.[808,1414,1843,1996]" box="[809,1414,1972,1996]" pageId="1" pageNumber="460">
<emphasis id="C489ED42616B494DFCE955E2FC25F85C" bold="true" box="[809,922,1972,1996]" pageId="1" pageNumber="460">Diagnosis.</emphasis>
Body terete, transparent, less than
<quantity id="31059CB5616B494DFACD55E2FAF7F85B" box="[1293,1352,1972,1996]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="1" pageNumber="460" unit="mm" value="2.0">2 mm</quantity>
long.
</paragraph>
<paragraph id="F64231506168494EFF6E5353FE5CFD30" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
Diameter of head about the same as segment II. No peristomial lobes (
<figureCitation id="6EC62DD56168494EFE8B5373FE1DFEAD" box="[331,418,293,317]" captionStart="Fig" captionStartId="1.[144,177,1031,1053]" captionTargetBox="[207,1355,259,998]" captionTargetId="figure-389@1.[207,1355,259,998]" captionTargetPageId="1" captionText="Fig. 1. Holtodrilus truncatus (Liang, 1963) from the Andeok Valley, Jeju­do Province, South Korea. A. whole body (preserved); B. each jaw with a large median tooth and three pairs of small lateral teeth(3­1­3/3­1­3); C. live specimens of H. truncatus (marked with arrows) on the body surface of the freshwater atyid shrimp, Neocaridina sp. Scale bars:A =0.5 mm, B=20 μm." figureDoi="http://doi.org/10.5281/zenodo.13143334" httpUri="https://zenodo.org/record/13143334/files/figure.png" pageId="2" pageNumber="461">Fig. 1A</figureCitation>
). Both jaws similar in shape and size, yellowish, triangular, dental formula 7­7 (with a large median tooth and three pairs of small lateral teeth [3­1­3/3­1­3]) (
<figureCitation id="6EC62DD56168494EFE9B53D0FE0AFE0E" box="[347,437,390,414]" captionStart="Fig" captionStartId="1.[144,177,1031,1053]" captionTargetBox="[207,1355,259,998]" captionTargetId="figure-389@1.[207,1355,259,998]" captionTargetPageId="1" captionText="Fig. 1. Holtodrilus truncatus (Liang, 1963) from the Andeok Valley, Jeju­do Province, South Korea. A. whole body (preserved); B. each jaw with a large median tooth and three pairs of small lateral teeth(3­1­3/3­1­3); C. live specimens of H. truncatus (marked with arrows) on the body surface of the freshwater atyid shrimp, Neocaridina sp. Scale bars:A =0.5 mm, B=20 μm." figureDoi="http://doi.org/10.5281/zenodo.13143334" httpUri="https://zenodo.org/record/13143334/files/figure.png" pageId="2" pageNumber="461">Fig. 1B</figureCitation>
). 3­5 annuli per segment. No trunk appendages. Clitellum inconspicuous. Diameter of posterior sucker about the same as head region. Spermatheca located in segment V, not bifurcated. Glandular atrium (spermiducal gland) tubular, bent posteriorly to the short ejaculatory duct. Vasa deferentia linked into the spermiducal gland. No prostate gland. Paired testes located in segment V and VI. Both muscular bursa and cone­shaped penis eversible.
</paragraph>
</subSubSection>
<subSubSection id="BEE762DB6168494EFF6E50FFFEA9FCD2" pageId="2" pageNumber="461" type="biology_ecology">
<paragraph id="F64231506168494EFF6E50FFFEACFC91" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
<emphasis id="C489ED426168494EFF6E50FFFF53FD51" bold="true" box="[174,236,681,705]" pageId="2" pageNumber="461">Host.</emphasis>
This species was found on the exoskeletons of freshwater shrimp,
<taxonomicName id="31FD4AD36168494EFEBF509FFD96FD70" box="[383,553,713,737]" class="Malacostraca" family="Atyidae" genus="Neocaridina" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis id="C489ED426168494EFEBF509FFDBBFD71" box="[383,516,713,737]" italics="true" pageId="2" pageNumber="461">Neocaridina</emphasis>
sp.
</taxonomicName>
(
<taxonomicName id="31FD4AD36168494EFDF5509FFD1AFD71" box="[565,677,713,737]" class="Malacostraca" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="order">Decapoda</taxonomicName>
: Caridea:
<taxonomicName id="31FD4AD36168494EFF6F50BFFEB7FC91" box="[175,264,745,769]" class="Malacostraca" family="Atyidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="family">Atyidae</taxonomicName>
).
</paragraph>
<paragraph id="F64231506168494EFF6E515FFEA9FCD2" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
<emphasis id="C489ED426168494EFF6E515FFEB3FCB1" bold="true" box="[174,268,777,801]" pageId="2" pageNumber="461">Habitat.</emphasis>
Ectosymbiont, living on the hosts exoskeleton (
<figureCitation id="6EC62DD56168494EFF76517FFEB6FCD2" box="[182,265,809,834]" captionStart="Fig" captionStartId="1.[144,177,1031,1053]" captionTargetBox="[207,1355,259,998]" captionTargetId="figure-389@1.[207,1355,259,998]" captionTargetPageId="1" captionText="Fig. 1. Holtodrilus truncatus (Liang, 1963) from the Andeok Valley, Jeju­do Province, South Korea. A. whole body (preserved); B. each jaw with a large median tooth and three pairs of small lateral teeth(3­1­3/3­1­3); C. live specimens of H. truncatus (marked with arrows) on the body surface of the freshwater atyid shrimp, Neocaridina sp. Scale bars:A =0.5 mm, B=20 μm." figureDoi="http://doi.org/10.5281/zenodo.13143334" httpUri="https://zenodo.org/record/13143334/files/figure.png" pageId="2" pageNumber="461">Fig. 1C</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="BEE762DB6168494EFF6E511CFDF6FA95" pageId="2" pageNumber="461" type="distribution">
<paragraph id="F64231506168494EFF6E511CFE6AFC53" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
<emphasis id="C489ED426168494EFF6E511CFEFFFCF2" bold="true" box="[174,320,842,866]" pageId="2" pageNumber="461">Distribution.</emphasis>
<collectingCountry id="8EEA71C06168494EFE88511CFE36FCF1" box="[328,393,842,865]" name="South Korea" pageId="2" pageNumber="461">Korea</collectingCountry>
(this study),
<collectingCountry id="8EEA71C06168494EFDD8511CFDE8FCF2" box="[536,599,842,866]" name="China" pageId="2" pageNumber="461">China</collectingCountry>
(
<collectingRegion id="3439FFB26168494EFDA5511CFD11FCF2" box="[613,686,842,866]" country="China" name="Henan" pageId="2" pageNumber="461">Henan</collectingRegion>
,
<collectingRegion id="3439FFB26168494EFD7B511CFF5AFC12" country="China" name="Guangdong" pageId="2" pageNumber="461">Guangdong</collectingRegion>
,
<collectingRegion id="3439FFB26168494EFF2D513CFE8EFC12" box="[237,305,874,898]" country="China" name="Anhui" pageId="2" pageNumber="461">Anhui</collectingRegion>
, and
<collectingRegion id="3439FFB26168494EFEA8513CFE7AFC12" box="[360,453,874,898]" country="China" name="Zhejiang" pageId="2" pageNumber="461">Zhejiang</collectingRegion>
Provinces),
<collectingCountry id="8EEA71C06168494EFD87513DFD3CFC12" box="[583,643,875,898]" name="Japan" pageId="2" pageNumber="461">Japan</collectingCountry>
(Sugo River,
<collectingRegion id="3439FFB26168494EFF6E51DDFED0FC32" box="[174,367,906,931]" country="Japan" name="Hyogo" pageId="2" pageNumber="461">Hyogo Prefecture</collectingRegion>
; Miyakojima Island,
<collectingRegion id="3439FFB26168494EFD9551DCFF64FC53" country="Japan" name="Okinawa" pageId="2" pageNumber="461">Okinawa Prefecture</collectingRegion>
), northwestern
<collectingCountry id="8EEA71C06168494EFEBF51FDFE6EFC53" box="[383,465,939,963]" name="Taiwan" pageId="2" pageNumber="461">Taiwan</collectingCountry>
.
</paragraph>
<paragraph id="F64231506168494EFF6E519DFE28FB93" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
<emphasis id="C489ED426168494EFF6E519DFE90FC73" bold="true" box="[174,303,971,995]" pageId="2" pageNumber="461">Depository.</emphasis>
NIBRIV0000668071, NIBRIV0000668072, NIBRIV0000668073.
</paragraph>
<paragraph id="F64231506168494EFF6E565AFDF6FA95" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
<emphasis id="C489ED426168494EFF6E565AFE66FBB3" bold="true" box="[174,473,1035,1060]" pageId="2" pageNumber="461">Molecular characteristics.</emphasis>
The partial sequence of the mitochondrial
<emphasis id="C489ED426168494EFE92567AFE39FBD4" box="[338,390,1068,1092]" italics="true" pageId="2" pageNumber="461">CO1</emphasis>
gene for
<taxonomicName id="31FD4AD36168494EFE36567AFD3DFBD3" authorityName="Gelder and Brinkhurst, 1990:" authorityYear="1320" box="[502,642,1068,1091]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED426168494EFE36567AFD3DFBD3" box="[502,642,1068,1091]" italics="true" pageId="2" pageNumber="461">H. truncatus</emphasis>
</taxonomicName>
was 674 bp long. The sequence was determined and registered for the first time for this genus at the NCBI GenBank data­ base (accession number: KX683299). The sequence did not contain any insertions or deletions. No frame shift was detected during amino acid translation with the invertebrate mitochondrial genetic code.
</paragraph>
</subSubSection>
<subSubSection id="BEE762DB6168494EFF6E5758FDADF85B" pageId="2" pageNumber="461" type="discussion">
<paragraph id="F64231506168494EFF6E5758FD80F9B8" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
<emphasis id="C489ED426168494EFF6E5758FEA0FAB6" bold="true" box="[174,287,1294,1318]" pageId="2" pageNumber="461">Remarks.</emphasis>
<taxonomicName id="31FD4AD36168494EFEE8575BFDA8FAB5" authorityName="Gelder and Brinkhurst, 1990:" authorityYear="1320" box="[296,535,1293,1317]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED426168494EFEE8575BFDA8FAB5" box="[296,535,1293,1317]" italics="true" pageId="2" pageNumber="461">Holtodrilus truncatus</emphasis>
</taxonomicName>
is the sole species in the genus
<taxonomicName id="31FD4AD36168494EFEDE5778FE26FAD6" authorityName="Gelder and Brinkhurst" authorityYear="1990" box="[286,409,1326,1350]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="genus">
<emphasis id="C489ED426168494EFEDE5778FE26FAD6" box="[286,409,1326,1350]" italics="true" pageId="2" pageNumber="461">Holtodrilus</emphasis>
</taxonomicName>
(family
<taxonomicName id="31FD4AD36168494EFE335778FD2AFAD6" authorityName="Holt" authorityYear="1986" box="[499,661,1326,1350]" family="Xironodrilidae" pageId="2" pageNumber="461" rank="family">Xironodrilidae</taxonomicName>
). This species was originally described and placed in the genus
<taxonomicName id="31FD4AD36168494EFF6E5738FEEBFA16" box="[174,340,1390,1414]" class="Clitellata" family="Branchiobdellidae" genus="Stephanodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="genus">
<emphasis id="C489ED426168494EFF6E5738FEEBFA16" box="[174,340,1390,1414]" italics="true" pageId="2" pageNumber="461">Stephanodrilus</emphasis>
</taxonomicName>
by
<bibRefCitation id="926C4CA16168494EFE425738FDAEFA16" author="Liang, Y. - L." box="[386,529,1390,1414]" pageId="2" pageNumber="461" pagination="560 - 570" refId="ref2121" refString="Liang, Y. - L. 1963. Studies on the aquatic Oligochaeta of China. I. Descriptions of new naids and branchiobdellids. Acta Zoologica Sinica 15: 560 - 570." type="journal article" year="1963">Liang (1963)</bibRefCitation>
based on the Chinese shrimp
<taxonomicName id="31FD4AD36168494EFEC257D8FCB4FA37" authority="(Kemp, 1918)" baseAuthorityName="Kemp" baseAuthorityYear="1918" box="[258,779,1422,1447]" class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="subSpecies" species="denticulata" subSpecies="sinensis">
<emphasis id="C489ED426168494EFEC257D8FDD4FA36" box="[258,619,1422,1446]" italics="true" pageId="2" pageNumber="461">Neocaridina denticulata sinensis</emphasis>
(Kemp, 1918)
</taxonomicName>
in
<collectingRegion id="3439FFB26168494EFF0A57F9FEC5FA57" box="[202,378,1455,1479]" country="China" name="Henan" pageId="2" pageNumber="461">Henan Province</collectingRegion>
,
<collectingCountry id="8EEA71C06168494EFE4557F9FE77FA57" box="[389,456,1455,1479]" name="China" pageId="2" pageNumber="461">China</collectingCountry>
. Since then,
<taxonomicName id="31FD4AD36168494EFD9457F9FD64FA56" authorityName="Gelder and Brinkhurst, 1990:" authorityYear="1320" box="[596,731,1455,1478]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED426168494EFD9457F9FD64FA56" box="[596,731,1455,1478]" italics="true" pageId="2" pageNumber="461">H. truncatus</emphasis>
</taxonomicName>
was also found on other atyid genera such as
<taxonomicName id="31FD4AD36168494EFDAC5786FEF0F997" authority="(Tanaka et al., 2016)" baseAuthorityName="Tanaka" baseAuthorityYear="2016" class="Malacostraca" family="Atyidae" genus="Paratya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="genus">
<emphasis id="C489ED426168494EFDAC5786FD7DFA77" box="[620,706,1488,1511]" italics="true" pageId="2" pageNumber="461">Paratya</emphasis>
(
<bibRefCitation id="926C4CA16168494EFD0D5799FEF7F997" author="Tanaka, K. &amp; K. Wada &amp; K. Hamasaki" pageId="2" pageNumber="461" pagination="154 - 161" refId="ref2601" refString="Tanaka, K., K. Wada and K. Hamasaki. 2016. Distribution of Holtodrilus truncatus, a Branchiobdellidan Ectosymbiotic on Atyid Shrimps in the Kii Peninsula, Western Japan, with Reference to Salinity Tolerance and Host Preference. Zoological Science 33: 154 - 161." type="journal article" year="2016">
Tanaka
<emphasis id="C489ED426168494EFF0E57A6FEBBF997" box="[206,260,1519,1543]" italics="true" pageId="2" pageNumber="461">et al.</emphasis>
, 2016
</bibRefCitation>
)
</taxonomicName>
and
<taxonomicName id="31FD4AD36168494EFE4457B9FE5BF997" box="[388,484,1519,1543]" class="Malacostraca" family="Atyidae" genus="Caridina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="genus">
<emphasis id="C489ED426168494EFE4457B9FE5BF997" box="[388,484,1519,1543]" italics="true" pageId="2" pageNumber="461">Caridina</emphasis>
</taxonomicName>
(
<bibRefCitation id="926C4CA16168494EFE3057B9FD0CF998" author="Fujita, Y. &amp; T. Kawahara &amp; N. Niwa &amp; S. Shokita" box="[496,691,1519,1544]" pageId="2" pageNumber="461" pagination="25 - 33" refId="ref1902" refString="Fujita, Y., T. Kawahara, N. Niwa and S. Shokita. 2010. First record of Holtodrilus truncatus (Liang, 1963) (Annelida, Clitellata: Branchiobdellidae) from the Ryukyu Islands. The Biological Magazine Okinawa 48: 25 - 33." type="journal article" year="2010">
Fujita
<emphasis id="C489ED426168494EFDF757A6FDD2F997" box="[567,621,1519,1543]" italics="true" pageId="2" pageNumber="461">et al.</emphasis>
, 2010
</bibRefCitation>
;
<bibRefCitation id="926C4CA16168494EFD7E57B9FEE5F9B8" author="Ohtaka, A. &amp; R. - T. Chen" pageId="2" pageNumber="461" pagination="97 - 110" refId="ref2415" refString="Ohtaka, A. and R. - T. Chen. 2010. New records of a branchiobdellidan and four microdrile oligochaetes (Annelida: Clitellata) from inland waters of Taiwan. Taiwan Journal of Biodiversity 12: 97 - 110." type="journal article" year="2010">Ohtaka and Chen, 2010</bibRefCitation>
;
<bibRefCitation id="926C4CA16168494EFEA45446FD8BF9B8" author="Tanaka, K. &amp; K. Wada &amp; K. Hamasaki" box="[356,564,1552,1576]" pageId="2" pageNumber="461" pagination="154 - 161" refId="ref2601" refString="Tanaka, K., K. Wada and K. Hamasaki. 2016. Distribution of Holtodrilus truncatus, a Branchiobdellidan Ectosymbiotic on Atyid Shrimps in the Kii Peninsula, Western Japan, with Reference to Salinity Tolerance and Host Preference. Zoological Science 33: 154 - 161." type="journal article" year="2016">
Tanaka
<emphasis id="C489ED426168494EFE775446FE52F9B8" box="[439,493,1552,1576]" italics="true" pageId="2" pageNumber="461">et al.</emphasis>
, 2016
</bibRefCitation>
).
</paragraph>
<paragraph id="F64231506168494EFF055466FE80F979" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
This paper reports the first record of
<taxonomicName id="31FD4AD36168494EFD8B5467FD6EF9D8" authorityName="Gelder and Brinkhurst, 1990:" authorityYear="1320" box="[587,721,1585,1608]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED426168494EFD8B5467FD6EF9D8" box="[587,721,1585,1608]" italics="true" pageId="2" pageNumber="461">H. truncatus</emphasis>
</taxonomicName>
from
<collectingCountry id="8EEA71C06168494EFF6E5406FE84F9F8" box="[174,315,1616,1640]" name="South Korea" pageId="2" pageNumber="461">South Korea</collectingCountry>
, and the genus and family of this species are also new to the Korean fauna. Moreover, this is the first record of a branchiobdellidan from a non-crayfish host (shrimp), unlike those previously known from crayfish in
<collectingCountry id="8EEA71C06168494EFF365484FE84F979" box="[246,315,1746,1769]" name="South Korea" pageId="2" pageNumber="461">Korea</collectingCountry>
.
</paragraph>
<paragraph id="F64231506168494EFF0554A4FDADF85B" blockId="2.[174,781,261,1995]" pageId="2" pageNumber="461">
To date, seven species (four genera in three families) of branchiobdellidans have been reported in the Kore­ an fauna. Further studies are needed to determine if the Korean population of
<taxonomicName id="31FD4AD36168494EFE615505FD96F8FA" authorityName="Gelder and Brinkhurst, 1990:" authorityYear="1320" box="[417,553,1875,1898]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED426168494EFE615505FD96F8FA" box="[417,553,1875,1898]" italics="true" pageId="2" pageNumber="461">H. truncatus</emphasis>
</taxonomicName>
was native or introduced, and if
<taxonomicName id="31FD4AD36168494EFE885525FE6EF81A" authorityName="Gelder and Brinkhurst, 1990:" authorityYear="1320" box="[328,465,1907,1930]" class="Clitellata" family="Branchiobdellidae" genus="Holtodrilus" kingdom="Animalia" order="Branchiobdellida" pageId="2" pageNumber="461" phylum="Annelida" rank="species" species="truncatus">
<emphasis id="C489ED426168494EFE885525FE6EF81A" box="[328,465,1907,1930]" italics="true" pageId="2" pageNumber="461">H. truncatus</emphasis>
</taxonomicName>
was found from other atyid shrimps in
<collectingCountry id="8EEA71C06168494EFEE755C5FED7F83A" box="[295,360,1939,1962]" name="South Korea" pageId="2" pageNumber="461">Korea</collectingCountry>
(such as
<taxonomicName id="31FD4AD36168494EFE0E55C5FD23F83A" baseAuthorityName="De Haan" baseAuthorityYear="1844" box="[462,668,1939,1962]" class="Malacostraca" family="Atyidae" genus="Paratya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="species" species="compressa">
<emphasis id="C489ED426168494EFE0E55C5FD23F83A" box="[462,668,1939,1962]" italics="true" pageId="2" pageNumber="461">Paratya compressa</emphasis>
</taxonomicName>
,
<taxonomicName id="31FD4AD36168494EFD6A55C5FE8AF85B" authorityName="Stimpson" authorityYear="1860" class="Malacostraca" family="Atyidae" genus="Caridina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="species" species="multidentata">
<emphasis id="C489ED426168494EFD6A55C5FE8AF85B" italics="true" pageId="2" pageNumber="461">Caridina multidentata</emphasis>
</taxonomicName>
, and
<taxonomicName id="31FD4AD36168494EFEAF55E5FDBDF85B" authorityName="Stimpson" authorityYear="1860" box="[367,514,1971,1995]" class="Malacostraca" family="Atyidae" genus="Caridina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="461" phylum="Arthropoda" rank="species" species="leucosticta">
<emphasis id="C489ED426168494EFEAF55E5FDBDF85B" box="[367,514,1971,1995]" italics="true" pageId="2" pageNumber="461">C. leucosticta</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
</treatment>
</document>