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<document id="CA8E243F8440AAD734D2A0D847278F34" ID-DOI="10.5281/zenodo.170186" ID-GBIF-Dataset="d91ae7dd-a600-4f24-a890-7201060d61b6" ID-ISSN="1175­5326" ID-Zenodo-Dep="170186" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459751486132" checkinUser="plazi" docAuthor="Davids, Kees, Sabatino, Antonio Di, Gerecke, Reinhard, Gledhill, Terence &amp; Smit, Harry" docDate="2005" docId="03F7DE69B044FFFAFEF6FC02FDAD829B" docLanguage="en" docName="zt01061p064.pdf" docOrigin="Zootaxa 1061" docStyle="DocumentStyle:FA7E419B012A62B0FC3AC15A186C3DAF.3:Zootaxa.2001-2006.journal_article" docStyleId="FA7E419B012A62B0FC3AC15A186C3DAF" docStyleName="Zootaxa.2001-2006.journal_article" docStyleVersion="3" docTitle="Hydrachna skorikowi Piersig 1900" docType="treatment" docVersion="8" lastPageNumber="51" masterDocId="FFCEA611B04BFFEAFFFEFFABFFDF8075" masterDocTitle="On the taxonomy of water mites (Acari: Hydrachnidia) described from the Palaearctic, part 1: Hydrachnidae, Limnocharidae and Eylaidae" masterLastPageNumber="64" masterPageNumber="36" pageNumber="50" updateTime="1698211877776" updateUser="plazi">
<mods:mods id="B5D14F52C65D4479C079E91EC29A29DE" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="AAB241E3C85E86640361ACC30A03D1BE">
<mods:title id="661F642BE6A911E1BE6FDA5A1D50BFD7">On the taxonomy of water mites (Acari: Hydrachnidia) described from the Palaearctic, part 1: Hydrachnidae, Limnocharidae and Eylaidae</mods:title>
</mods:titleInfo>
<mods:name id="FCC768F5F78D0C7B123AF71EECB91AE8" type="personal">
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<mods:namePart id="ADF9990B19DFE486F10EA4BE84A706CA">Davids, Kees</mods:namePart>
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<mods:namePart id="DC7107D01B157AE16890BBBB39A16C07">Sabatino, Antonio Di</mods:namePart>
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<mods:name id="9A8BC9C4B88FFE9013F6DA78A64B7E6F" type="personal">
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<mods:namePart id="511096523DFCBC368E68D5BDAAA7D1FE">Gerecke, Reinhard</mods:namePart>
</mods:name>
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<mods:namePart id="B7F3F6A3BA43BF9FF11D20AF9938399B">Gledhill, Terence</mods:namePart>
</mods:name>
<mods:name id="4F2735E895F0512B44392DD3F70C0FBE" type="personal">
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<mods:namePart id="DBD426F918069AB0FF4499A2B1908986">Smit, Harry</mods:namePart>
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<mods:typeOfResource id="2A2D0A0B43E4B5E8CEF175D180B80685">text</mods:typeOfResource>
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<mods:title id="FBA840385000CF60DCB6F27D4377B824">Zootaxa</mods:title>
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<mods:part id="DE187B9972EE15CFB69E554823009AAF">
<mods:date id="E14E0CF828290B12AF35BE6CF3F7F88B">2005</mods:date>
<mods:detail id="18C5205834D940EBD9577DF61B32FD00" type="volume">
<mods:number id="F536F58D48AB52E95CD338AE28081E9D">1061</mods:number>
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<mods:classification id="C4B744F83072ADA6A1B1BCE0547A74DA">journal article</mods:classification>
<mods:identifier id="D16940FDFD92520A9C9C33A2526BED8A" type="DOI">10.5281/zenodo.170186</mods:identifier>
<mods:identifier id="A0B92A5F66073E9E73D0388FC4B020F8" type="GBIF-Dataset">d91ae7dd-a600-4f24-a890-7201060d61b6</mods:identifier>
<mods:identifier id="49CB377D2D2A29F2B689570684CBB62B" type="ISSN">1175­5326</mods:identifier>
<mods:identifier id="D969D8E434D8B3FCE05FBBAA99EEF687" type="Zenodo-Dep">170186</mods:identifier>
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<treatment id="03F7DE69B044FFFAFEF6FC02FDAD829B" ID-DOI="http://doi.org/10.5281/zenodo.6267654" ID-GBIF-Taxon="119337860" ID-Zenodo-Dep="6267654" LSID="urn:lsid:plazi:treatment:03F7DE69B044FFFAFEF6FC02FDAD829B" httpUri="http://treatment.plazi.org/id/03F7DE69B044FFFAFEF6FC02FDAD829B" lastPageId="16" lastPageNumber="51" pageId="15" pageNumber="50">
<subSubSection id="C3443CF4B044FFE5FEF6FC02FD1783B6" box="[264,712,937,963]" pageId="15" pageNumber="50" type="nomenclature">
<paragraph id="8BE16F7FB044FFE5FEF6FC02FD1783B6" blockId="15.[264,712,937,963]" box="[264,712,937,963]" pageId="15" pageNumber="50">
<heading id="D0A9D813B044FFE5FEF6FC02FD1783B6" bold="true" box="[264,712,937,963]" fontSize="11" level="1" pageId="15" pageNumber="50" reason="1">
<taxonomicName id="4C5E14FCB044FFE5FEF6FC02FD1783B6" authority="Piersig, 1900" authorityName="Piersig" authorityYear="1900" box="[264,712,937,963]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="skorikowi">
<emphasis id="B92AB36DB044FFE5FEF6FC02FD1783B6" bold="true" box="[264,712,937,963]" pageId="15" pageNumber="50">
<emphasis id="B92AB36DB044FFE5FEF6FC02FDD283B6" bold="true" box="[264,525,937,963]" italics="true" pageId="15" pageNumber="50">Hydrachna skorikowi</emphasis>
(
<bibRefCitation id="EFCF128EB044FFE5FDE3FC02FD6083B6" author="Piersig" box="[541,703,937,963]" pageId="15" pageNumber="63" refString="Piersig, R. (1900) Hydrachniden aus den Salzseen bei Slaviansk. Annuaire du Musee Zoologiquede l' Academie Imperiale des Sciences de St. - Petersbourg (1899), 4, 481 - 486." type="journal article" year="1900">Piersig, 1900</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3443CF4B044FFE5FEF6FC47FC938453" pageId="15" pageNumber="50" type="reference_group">
<paragraph id="8BE16F7FB044FFE5FEF6FC47FD288476" blockId="15.[264,844,1004,1062]" box="[264,759,1004,1027]" pageId="15" pageNumber="50">
<taxonomicName id="4C5E14FCB044FFE5FEF6FC47FD288476" authority="Piersig, 1900" authorityName="Piersig" authorityYear="1900" box="[264,759,1004,1027]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="subSpecies" species="schneideri" subSpecies="skorikowi">
<emphasis id="B92AB36DB044FFE5FEF6FC47FDBB8476" box="[264,612,1004,1027]" italics="true" pageId="15" pageNumber="50">Hydrachna schneideri skorikowi</emphasis>
<bibRefCitation id="EFCF128EB044FFE5FD95FC47FD288476" author="Piersig" box="[619,759,1004,1027]" pageId="15" pageNumber="63" refString="Piersig, R. (1900) Hydrachniden aus den Salzseen bei Slaviansk. Annuaire du Musee Zoologiquede l' Academie Imperiale des Sciences de St. - Petersbourg (1899), 4, 481 - 486." type="journal article" year="1900">Piersig, 1900</bibRefCitation>
</taxonomicName>
</paragraph>
<paragraph id="8BE16F7FB044FFE5FEF6FBA4FC938453" blockId="15.[264,844,1004,1062]" box="[264,844,1038,1062]" pageId="15" pageNumber="50">
<taxonomicName id="4C5E14FCB044FFE5FEF6FBA4FD008450" authority="K.Viets, 1930" authorityName="K.Viets" authorityYear="1930" box="[264,735,1038,1062]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="subSpecies" species="skorikowi" subSpecies="integra">
<emphasis id="B92AB36DB044FFE5FEF6FBA4FD9D8453" box="[264,578,1039,1062]" italics="true" pageId="15" pageNumber="50">Hydrachna skorikowi integra</emphasis>
<bibRefCitation id="EFCF128EB044FFE5FDB7FBA5FD008450" author="Viets" box="[585,735,1038,1061]" lastPageId="15" lastPageNumber="64" pageId="15" pageNumber="63" refString="Viets, K. (1930) Zur Kenntnis der Hydracarinen-Fauna von Spanien. Archiv fur Hydrobiologie, 21, 175 - 240, 21, 359 - 446." type="journal article" year="1930">K.Viets, 1930</bibRefCitation>
</taxonomicName>
,
<emphasis id="B92AB36DB044FFE5FD17FBA5FC938453" bold="true" box="[745,844,1038,1062]" pageId="15" pageNumber="50">
<taxonomicNameLabel id="A2190E16B044FFE5FD17FBA5FC938453" box="[745,844,1038,1062]" pageId="15" pageNumber="50">syn. nov.</taxonomicNameLabel>
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C3443CF4B044FFFAFEF6FBE4FDAD829B" lastPageId="16" lastPageNumber="51" pageId="15" pageNumber="50" type="materials_examined">
<paragraph id="8BE16F7FB044FFE5FEF6FBE4FD1A857C" blockId="15.[264,1324,1103,1889]" pageId="15" pageNumber="50">
Material examined:
<collectingCountry id="F3492FEFB044FFE5FE03FBE4FDE8841C" box="[509,567,1103,1129]" name="Italy" pageId="15" pageNumber="50">Italy</collectingCountry>
: Friuli­Venezia Giulia, Staranzano (GO), foci F. Isonzo,
<collectingCountry id="F3492FEFB044FFE5FB0CFBE4FAF4841C" box="[1266,1323,1103,1129]" name="Iceland" pageId="15" pageNumber="50">Isola</collectingCountry>
della Cona, Stoch (1/2/1);
<taxonomicName id="4C5E14FCB044FFE5FDADFBDCFBB584E4" authority="K.Viets, 1930" authorityName="K.Viets" authorityYear="1930" box="[595,1130,1143,1169]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="subSpecies" species="skorikowi" subSpecies="integra">
<emphasis id="B92AB36DB044FFE5FDADFBDCFC6884E5" box="[595,951,1143,1168]" italics="true" pageId="15" pageNumber="50">Hydrachna skorikowi integra</emphasis>
<bibRefCitation id="EFCF128EB044FFE5FC3DFBDCFBB584E4" author="Viets" box="[963,1130,1143,1169]" lastPageId="15" lastPageNumber="64" pageId="15" pageNumber="63" refString="Viets, K. (1930) Zur Kenntnis der Hydracarinen-Fauna von Spanien. Archiv fur Hydrobiologie, 21, 175 - 240, 21, 359 - 446." type="journal article" year="1930">K.Viets, 1930</bibRefCitation>
</taxonomicName>
<typeStatus id="54E5D1DDB044FFE5FB89FBDCFB0284E4" box="[1143,1245,1143,1169]" pageId="15" pageNumber="50" type="holotype">holotype</typeStatus>
male,
<collectionCode id="ED4FF7BAB044FFE5FEF6FB34FE9C84CC" LSID="urn:lsid:biocol.org:col:34838" box="[264,323,1183,1209]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34838" name="Forschungsinstitut und Natur-Museum Senckenberg" pageId="15" pageNumber="50">SMF</collectionCode>
3777; Sicily, numerous specimens from 11 sites, published as &quot;
<taxonomicName id="4C5E14FCB044FFE5FBD3FB34FE198494" authority="Gerecke 1991" authorityName="Gerecke" authorityYear="1991" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="subSpecies" species="skorikowi" subSpecies="integra">
<emphasis id="B92AB36DB044FFE5FBD3FB34FAC184CD" box="[1069,1310,1183,1208]" italics="true" pageId="15" pageNumber="50">H. skorikowi integra</emphasis>
&quot; (
<bibRefCitation id="EFCF128EB044FFE5FEEEFB6CFE628494" author="Gerecke" box="[272,445,1223,1249]" pageId="15" pageNumber="62" refString="Gerecke, R. (1991) Taxonomische, faunistische und okologische Untersuchungen an Wassermilben (Acari, Actinedida) aus Sizilien unter Berucksichtigung anderer aquatischer Invertebraten. Lauterbornia, 7, 1 - 304." type="journal article" year="1991">Gerecke 1991</bibRefCitation>
)
</taxonomicName>
;
<taxonomicName id="4C5E14FCB044FFE5FE28FB6CFD3F8495" box="[470,736,1223,1248]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="schneideri">
<emphasis id="B92AB36DB044FFE5FE28FB6CFD3F8495" box="[470,736,1223,1248]" italics="true" pageId="15" pageNumber="50">Hydrachna schneideri</emphasis>
</taxonomicName>
<typeStatus id="54E5D1DDB044FFE5FD15FB6CFC888494" box="[747,855,1223,1249]" pageId="15" pageNumber="50" type="lectotype">lectotype</typeStatus>
male,
<collectionCode id="ED4FF7BAB044FFE5FC53FB6CFBDD8494" box="[941,1026,1223,1249]" httpUri="http://grbio.org/cool/8z6v-f8is" name="Saskatchewan Museum of Natural History" pageId="15" pageNumber="50">SMNH</collectionCode>
373 Heiligenrode, 2370 Ostfriesland (=
<taxonomicName id="4C5E14FCB044FFE5FE3EFB44FDE2857D" box="[448,573,1263,1288]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="cruenta">
<emphasis id="B92AB36DB044FFE5FE3EFB44FDE2857D" box="[448,573,1263,1288]" italics="true" pageId="15" pageNumber="50">H. cruenta</emphasis>
</taxonomicName>
, see there).
</paragraph>
<paragraph id="8BE16F7FB044FFE5FEC6FABCFB3A8764" blockId="15.[264,1324,1103,1889]" pageId="15" pageNumber="50">
Discussion: The material on which
<bibRefCitation id="EFCF128EB044FFE5FCFEFABCFC1E8544" author="Koenike" box="[768,961,1303,1329]" pageId="15" pageNumber="62" refString="Koenike, F. (1895) Die Hydrachniden-Fauna von Juist nebst Beschreibung einer neuen Hydrachna - Spezies von Borkum und Norderney. Abhandlungen herausgegeben vom naturwissenschaftlichen Verein Bremen, 13, 227 - 235." type="journal article" year="1895">Koenike (1895)</bibRefCitation>
based the description of
<taxonomicName id="4C5E14FCB044FFE5FAF0FABCFE5D852D" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="schneideri">
<emphasis id="B92AB36DB044FFE5FAF0FABCFE5D852D" italics="true" pageId="15" pageNumber="50">H. schneideri</emphasis>
</taxonomicName>
consisted of two specimens. The male (slide number 375) is obviously identical with
<taxonomicName id="4C5E14FCB044FFE5FEBAFACCFDA585F4" authority="Muller, 1776" authorityName="Muller" authorityYear="1776" box="[324,634,1383,1409]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="cruenta">
<emphasis id="B92AB36DB044FFE5FEBAFACCFE1D85F5" box="[324,450,1383,1408]" italics="true" pageId="15" pageNumber="50">H. cruenta</emphasis>
(Müller, 1776)
</taxonomicName>
, but the female (slide number 373) has a distinctly stouter palp and was later named by
<bibRefCitation id="EFCF128EB044FFE5FD86FA24FCEA85DC" author="Koenike" box="[632,821,1423,1449]" pageId="15" pageNumber="63" refString="Koenike, F. (1914) Neue und neubenannte Wassermilben. Abhandlungen herausgegeben vom naturwissenschaftlichen Verein Bremen, 22, 383 - 404." type="journal article" year="1914">Koenike (1914)</bibRefCitation>
as
<taxonomicName id="4C5E14FCB044FFE5FC9BFA24FC0985DD" box="[869,982,1423,1448]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="valida">
<emphasis id="B92AB36DB044FFE5FC9BFA24FC0985DD" box="[869,982,1423,1448]" italics="true" pageId="15" pageNumber="50">H. valida</emphasis>
</taxonomicName>
. However, this specimen is morphologically identical with a subspecies described in the meantime by
<bibRefCitation id="EFCF128EB044FFE5FB7EFA1CFAF785A4" author="Piersig" box="[1152,1320,1463,1489]" pageId="15" pageNumber="63" refString="Piersig, R. (1900) Hydrachniden aus den Salzseen bei Slaviansk. Annuaire du Musee Zoologiquede l' Academie Imperiale des Sciences de St. - Petersbourg (1899), 4, 481 - 486." type="journal article" year="1900">Piersig (1900)</bibRefCitation>
as
<taxonomicName id="4C5E14FCB044FFE5FED5FA74FD98858D" box="[299,583,1503,1528]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="subSpecies" species="schneideri" subSpecies="skorikowi">
<emphasis id="B92AB36DB044FFE5FED5FA74FD98858D" box="[299,583,1503,1528]" italics="true" pageId="15" pageNumber="50">H. schneideri skorikowi</emphasis>
</taxonomicName>
. As in the description of Koenike no
<typeStatus id="54E5D1DDB044FFE5FBEDFA74FBA5858C" box="[1043,1146,1503,1529]" pageId="15" pageNumber="50" type="holotype">holotype</typeStatus>
specimen was selected, and also in his hand written catalogue (
<collectionCode id="ED4FF7BAB044FFE5FC9EF9ACFC628654" box="[864,957,1543,1569]" httpUri="http://grbio.org/cool/1d5a-4efs" name="Naturhistorisches Museum, Basel" pageId="15" pageNumber="50">NHMB</collectionCode>
, unpubl.), both specimens are simply designated as &quot;
<typeStatus id="54E5D1DDB044FFE5FDEAF984FD88863C" box="[532,599,1583,1609]" pageId="15" pageNumber="50">Type</typeStatus>
&quot;, they are obviously
<typeStatus id="54E5D1DDB044FFE5FCABF984FC60863C" box="[853,959,1583,1609]" pageId="15" pageNumber="50" type="syntype">syntypes</typeStatus>
. When
<bibRefCitation id="EFCF128EB044FFE5FBE3F984FB6C863C" author="Viets" box="[1053,1203,1583,1609]" pageId="15" pageNumber="64" refString="Viets, K. (1935) Uber die Synonymie von Hydrachna cruenta O. F. M. (Acari). Abhandlungen herausgegeben vom naturwissenschaftlichen Verein Bremen, 29, 245 - 251." type="journal article" year="1935">Viets (1935)</bibRefCitation>
, in a first statement about this problem, based his redescription on the male specimen (slide number 375), in the sense of the rules of the International Code of Zoological Nomenclature, this treatment was equivalent to a
<typeStatus id="54E5D1DDB044FFE5FD9BF90CFD0F86B4" box="[613,720,1703,1729]" pageId="15" pageNumber="50" type="lectotype">lectotype</typeStatus>
designation. Consequently, the name
<taxonomicName id="4C5E14FCB044FFE5FB73F90CFAF586B5" box="[1165,1322,1703,1728]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="schneideri">
<emphasis id="B92AB36DB044FFE5FB73F90CFAF586B5" box="[1165,1322,1703,1728]" italics="true" pageId="15" pageNumber="50">H. schneideri</emphasis>
</taxonomicName>
must be considered a junior synonym of
<taxonomicName id="4C5E14FCB044FFE5FD10F964FCB1869D" box="[750,878,1743,1768]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="cruenta">
<emphasis id="B92AB36DB044FFE5FD10F964FCB1869D" box="[750,878,1743,1768]" italics="true" pageId="15" pageNumber="50">H. cruenta</emphasis>
</taxonomicName>
and the valid name for all specimens ever published under this name is
<taxonomicName id="4C5E14FCB044FFE5FD67F95CFCF18765" box="[665,814,1783,1808]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="15" pageNumber="50" phylum="Arthropoda" rank="species" species="skorikowi">
<emphasis id="B92AB36DB044FFE5FD67F95CFCF18765" box="[665,814,1783,1808]" italics="true" pageId="15" pageNumber="50">H. skorikowi</emphasis>
</taxonomicName>
, as was proposed by
<bibRefCitation id="EFCF128EB044FFE5FBD7F95CFB3E8764" author="Viets" box="[1065,1249,1783,1809]" pageId="15" pageNumber="64" refString="Viets, K. (1935) Uber die Synonymie von Hydrachna cruenta O. F. M. (Acari). Abhandlungen herausgegeben vom naturwissenschaftlichen Verein Bremen, 29, 245 - 251." type="journal article" year="1935">K. Viets (1935)</bibRefCitation>
.
</paragraph>
<paragraph id="8BE16F7FB044FFFAFEC6F8B4FCB9812B" blockId="15.[264,1324,1103,1889]" lastBlockId="16.[264,1324,284,750]" lastPageId="16" lastPageNumber="51" pageId="15" pageNumber="50">
This position is in contrast to
<bibRefCitation id="EFCF128EB044FFE5FD4AF8B4FCA0874C" author="Lundblad" box="[692,895,1823,1849]" pageId="15" pageNumber="63" refString="Lundblad, O. (1956) Zur Kenntnis sud- und mitteleuropaischer Hydrachnellen. Arkiv for Zoologi, 10, 1 - 306." type="journal article" year="1956">Lundblad (1956)</bibRefCitation>
who pointed out that most of the figures in the original description refer to the female specimen with stout palps. This statement is correct, but in this special situation, the earlier treatment by
<bibRefCitation id="EFCF128EB05BFFFAFB8CFEB7FAF38143" author="Viets" box="[1138,1324,284,310]" pageId="16" pageNumber="64" refString="Viets, K. (1935) Uber die Synonymie von Hydrachna cruenta O. F. M. (Acari). Abhandlungen herausgegeben vom naturwissenschaftlichen Verein Bremen, 29, 245 - 251." type="journal article" year="1935">K. Viets (1935)</bibRefCitation>
established a
<typeStatus id="54E5D1DDB05BFFFAFE58FEEFFDCD812B" box="[422,530,324,350]" pageId="16" pageNumber="51" type="lectotype">lectotype</typeStatus>
thus precluding questioning.
</paragraph>
<paragraph id="8BE16F7FB05BFFFAFEC6FEC7FDAD829B" blockId="16.[264,1324,284,750]" pageId="16" pageNumber="51">
The diagnostic feature of a further subspecies described as
<taxonomicName id="4C5E14FCB05BFFFAFBEAFEC7FB3A81F0" box="[1044,1253,364,389]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="16" pageNumber="51" phylum="Arthropoda" rank="subSpecies" species="valida" subSpecies="integra">
<emphasis id="B92AB36DB05BFFFAFBEAFEC7FB3A81F0" box="[1044,1253,364,389]" italics="true" pageId="16" pageNumber="51">H. valida integra</emphasis>
</taxonomicName>
from
<collectingCountry id="F3492FEFB05BFFFAFEF6FE3FFE9481DB" box="[264,331,404,430]" name="Spain" pageId="16" pageNumber="51">Spain</collectingCountry>
(
<bibRefCitation id="EFCF128EB05BFFFAFEA3FE3FFDDB81DB" author="Viets" box="[349,516,404,430]" lastPageId="16" lastPageNumber="64" pageId="16" pageNumber="63" refString="Viets, K. (1930) Zur Kenntnis der Hydracarinen-Fauna von Spanien. Archiv fur Hydrobiologie, 21, 175 - 240, 21, 359 - 446." type="journal article" year="1930">K. Viets 1930</bibRefCitation>
) should be a straight, not medially indented posterior margin of the frontal shield. In fact, numerous specimens from
<collectingCountry id="F3492FEFB05BFFFAFCA8FE17FC5481A3" box="[854,907,444,470]" name="Italy" pageId="16" pageNumber="51">Italy</collectingCountry>
agree with this description, but an examination of populations from other parts of Europe and in
<collectingCountry id="F3492FEFB05BFFFAFBDCFE4FFBBC818B" box="[1058,1123,484,510]" name="Israel" pageId="16" pageNumber="51">Israel</collectingCountry>
reveal a strong individual variability of this character. As is suggested by observations with other frontal shield­bearing species of the genus (e.g.
<taxonomicName id="4C5E14FCB05BFFFAFD1AFD9FFC22823B" authority="Walter, 1927" authorityName="Walter" authorityYear="1927" box="[740,1021,564,590]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="16" pageNumber="51" phylum="Arthropoda" rank="species" species="inversa">
<emphasis id="B92AB36DB05BFFFAFD1AFD9FFC818238" box="[740,862,564,589]" italics="true" pageId="16" pageNumber="51">H. inversa</emphasis>
<bibRefCitation id="EFCF128EB05BFFFAFC9BFD9FFC22823B" author="Walter" box="[869,1021,564,590]" pageId="16" pageNumber="64" refString="Walter, C. &amp; Mota s, C. (1927) Hydracariens nouveaux ou peu connus du Sud-Est de la France. Travaux du Laboratoire de Pisciculture de l' Universite de Grenoble, 11, 65 - 163." type="journal article" year="1927">Walter, 1927</bibRefCitation>
</taxonomicName>
, see
<bibRefCitation id="EFCF128EB05BFFFAFBC8FD9FFB33823B" author="Lundblad" box="[1078,1260,564,590]" pageId="16" pageNumber="63" refString="Lundblad, O. (1956) Zur Kenntnis sud- und mitteleuropaischer Hydrachnellen. Arkiv for Zoologi, 10, 1 - 306." type="journal article" year="1956">Lundblad 1956</bibRefCitation>
), this shield is formed from the fusion of paired plates and this fusion may be more or less complete, in the latter case leaving an unsclerotized posteromedial indentation.
<taxonomicName id="4C5E14FCB05BFFFAFB59FD2FFE0682B0" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="16" pageNumber="51" phylum="Arthropoda" rank="subSpecies" species="skorikowi" subSpecies="integra">
<emphasis id="B92AB36DB05BFFFAFB59FD2FFE0682B0" italics="true" pageId="16" pageNumber="51">Hydrachna skorikowi integra</emphasis>
</taxonomicName>
agrees from all other points of view with
<taxonomicName id="4C5E14FCB05BFFFAFC21FD07FBA782B0" box="[991,1144,684,709]" class="Arachnida" family="Hydrachnidae" genus="Hydrachna" kingdom="Animalia" order="Trombidiformes" pageId="16" pageNumber="51" phylum="Arthropoda" rank="species" species="skorikowi">
<emphasis id="B92AB36DB05BFFFAFC21FD07FBA782B0" box="[991,1144,684,709]" italics="true" pageId="16" pageNumber="51">H. skorikowi</emphasis>
</taxonomicName>
and should be considered its junior synonym.
</paragraph>
</subSubSection>
</treatment>
</document>
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