170 lines
20 KiB
XML
170 lines
20 KiB
XML
<document id="F9DF8968B19FCFEF745C6F18BEFB7B74" ID-CLB-Dataset="45585" ID-DOI="10.11646/zootaxa.3811.4.3" ID-GBIF-Dataset="6ab9cc07-eac7-4d4b-9b1d-c994697cd39f" ID-ISSN="1175-5326" ID-Zenodo-Dep="230701" ID-ZooBank="8D217288-2C30-4FD8-921D-5EDBEE3C02C9" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460432151992" checkinUser="plazi" docAuthor="Schwank, Peter & Kånneby, Tobias" docDate="2014" docId="03DD87DD6D17FFE5F2E0FA0D8FDEFE09" docLanguage="en" docName="zt03811p490.pdf" docOrigin="Zootaxa 3811 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Chaetonotus (Chaetonotus) ontariensis Schwank 1990" docType="treatment" docVersion="9" lastPageNumber="479" masterDocId="FFE4FFA56D19FFF5F277FFA28A42FFD9" masterDocTitle="Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America" masterLastPageNumber="490" masterPageNumber="463" pageNumber="477" updateTime="1698331565811" updateUser="ExternalLinkService">
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<mods:title id="04DEDA8F40F5D4710BA9CC0A383B8B31">Contribution to the freshwater gastrotrich fauna of wetland areas of southwestern Ontario (Canada) with redescriptions of seven species and a check-list for North America</mods:title>
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<mods:namePart id="F8ADE182986C6B1A05EE846B552368B8">Schwank, Peter</mods:namePart>
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<mods:namePart id="CF0024A1358FC580B72E1F71851FDFC3">Kånneby, Tobias</mods:namePart>
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<mods:title id="EF605A6C356CBBF12C970194D6C0A21C">Zootaxa</mods:title>
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<mods:date id="843B8EE2E29CC5C6F09B59BB9EFA691A">2014</mods:date>
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<mods:number id="73AA0791ACBA28374D6E50950161E0D7">3811</mods:number>
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<mods:identifier id="98B5D511D7ECE0003C20D0B70BD74C1B" type="DOI">10.11646/zootaxa.3811.4.3</mods:identifier>
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<treatment id="03DD87DD6D17FFE5F2E0FA0D8FDEFE09" ID-DOI="http://doi.org/10.5281/zenodo.6135585" ID-GBIF-Taxon="119430625" ID-Zenodo-Dep="6135585" LSID="urn:lsid:plazi:treatment:03DD87DD6D17FFE5F2E0FA0D8FDEFE09" httpUri="http://treatment.plazi.org/id/03DD87DD6D17FFE5F2E0FA0D8FDEFE09" lastPageId="16" lastPageNumber="479" pageId="14" pageNumber="477">
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<subSubSection id="C36E65406D17FFFBF2E0FA0D8AA9FA32" pageId="14" pageNumber="477" type="nomenclature">
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<paragraph id="8BCB36CB6D17FFFBF2E0FA0D8971FA13" blockId="14.[151,819,1455,1515]" box="[151,819,1455,1482]" pageId="14" pageNumber="477">
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<heading id="D08381A76D17FFFBF2E0FA0D8971FA13" bold="true" box="[151,819,1455,1482]" fontSize="11" level="1" pageId="14" pageNumber="477" reason="1">
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<taxonomicName id="4C744D486D17FFFBF2E0FA0D8971FA13" ID-CoL="69PF8" authority="Schwank, 1990" authorityName="Schwank" authorityYear="1990" box="[151,819,1455,1482]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="14" pageNumber="477" phylum="Gastrotricha" rank="species" species="ontariensis" subGenus="Chaetonotus">
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<emphasis id="B900EAD96D17FFFBF2E0FA0D8971FA13" bold="true" box="[151,819,1455,1482]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2E0FA0D8832FA10" bold="true" box="[151,624,1455,1481]" italics="true" pageId="14" pageNumber="477">Chaetonotus (Chaetonotus) ontariensis</emphasis>
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<bibRefCitation id="EFE54B3A6D17FFFBF000FA128971FA13" author="Schwank" box="[631,819,1456,1482]" pageId="14" pageNumber="477" refString="Schwank, P. (1990) Gastrotricha. In: Schwoerbel, J. & Zwick, P. (Eds.), Sußwasserfauna von Mitteleuropa, Band 3. Gastrotricha und Nemertini. Gustav Fischer Verlag, Stuttgart, Jena, New York, pp. 1 - 252." type="book chapter" year="1990">Schwank, 1990</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BCB36CB6D17FFFBF2E0FA708AA9FA32" blockId="14.[151,819,1455,1515]" box="[151,235,1490,1515]" pageId="14" pageNumber="477">
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(
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<figureCitation id="134F2A4E6D17FFFBF2E8FA708AA0FA32" box="[159,226,1490,1515]" captionStart="FIGURE 8" captionStartId="15.[151,250,1958,1980]" captionTargetBox="[508,1069,492,1926]" captionTargetId="figure@15.[501,1086,481,1937]" captionTargetPageId="15" captionText="FIGURE 8. Schematic drawing of Chaetonotus (Chaetonotus) ontariensis. A) Dorsal view. B) Spined scale of the trunk region." httpUri="https://zenodo.org/record/230708/files/figure.png" pageId="14" pageNumber="477">Fig. 8</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C36E65406D17FFFBF2E0F9B88973F947" pageId="14" pageNumber="477" type="materials_examined">
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<paragraph id="8BCB36CB6D17FFFBF2E0F9B889B1F9EA" blockId="14.[151,1436,1562,2019]" box="[151,1011,1562,1587]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2E0F9B88B77F9EA" bold="true" box="[151,309,1562,1587]" pageId="14" pageNumber="477">
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<typeStatus id="54CF88696D17FFFBF2E0F9B88A90F9EA" box="[151,210,1562,1587]" pageId="14" pageNumber="477">Type</typeStatus>
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locality.
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</emphasis>
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In wet mosses, Galt Creek, Puslinch district, Ontario,
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<collectingCountry id="F363765B6D17FFFBF1EFF9B889B2F9EA" box="[920,1008,1562,1587]" name="Canada" pageId="14" pageNumber="477">Canada</collectingCountry>
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.
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</paragraph>
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<paragraph id="8BCB36CB6D17FFFBF2B0F99C887BF9A2" blockId="14.[151,1436,1562,2019]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2B0F99C8B37F98E" bold="true" box="[199,373,1598,1623]" pageId="14" pageNumber="477">
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<typeStatus id="54CF88696D17FFFBF2B0F99C8B40F98E" box="[199,258,1598,1623]" pageId="14" pageNumber="477">Type</typeStatus>
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material.
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</emphasis>
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Drawing of one specimen.
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<typeStatus id="54CF88696D17FFFBF0DDF99D895FF98E" box="[682,797,1599,1623]" pageId="14" pageNumber="477" type="lectotype">Lectotype</typeStatus>
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,
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<collectionCode id="ED65AE0E6D17FFFBF15FF99D893BF98E" box="[808,889,1599,1623]" httpUri="http://grbio.org/cool/8z6v-f8is" name="Saskatchewan Museum of Natural History" pageId="14" pageNumber="477">SMNH</collectionCode>
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Type-8554 deposited at the Swedish Museum of Natural History, Stockholm,
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<collectingCountry id="F363765B6D17FFFBF3AEF9C08874F9A2" box="[473,566,1634,1659]" name="Sweden" pageId="14" pageNumber="477">Sweden</collectingCountry>
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.
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</paragraph>
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<paragraph id="8BCB36CB6D17FFFBF2B0F9248973F947" blockId="14.[151,1436,1562,2019]" box="[199,817,1670,1695]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2B0F9248BC3F946" bold="true" box="[199,385,1670,1695]" pageId="14" pageNumber="477">Other material.</emphasis>
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<specimenCount id="9D72FD426D17FFFBF3FFF9258850F946" box="[392,530,1670,1695]" pageId="14" pageNumber="477" type="generic">2 specimens</specimenCount>
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that are no longer extant.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36E65406D17FFFBF2B0F9088E50F91A" box="[199,1042,1706,1731]" pageId="14" pageNumber="477" type="etymology">
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<paragraph id="8BCB36CB6D17FFFBF2B0F9088E50F91A" blockId="14.[151,1436,1562,2019]" box="[199,1042,1706,1731]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2B0F9088B0CF91A" bold="true" box="[199,334,1706,1731]" pageId="14" pageNumber="477">Etymology.</emphasis>
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Species name derived from the province of Ontario in
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<collectingCountry id="F363765B6D17FFFBF1C0F9088E4DF91A" box="[951,1039,1706,1731]" name="Canada" pageId="14" pageNumber="477">Canada</collectingCountry>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36E65406D17FFFBF2B0F96C8822F8AE" pageId="14" pageNumber="477" type="diagnosis">
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<paragraph id="8BCB36CB6D17FFFBF2B0F96C8822F8AE" blockId="14.[151,1436,1562,2019]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2B0F96C8B03F93E" bold="true" box="[199,321,1742,1767]" pageId="14" pageNumber="477">Diagnosis.</emphasis>
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Small species, 120–130 µm in total body length. Head weakly five-lobed with two pairs of sensory ciliary tufts. Head as wide as trunk. Furca straight, 10–15 µm in length with thin adhesive tubes. Seven columns of dorsal scales in head/neck region and 5 columns of dorsal scales in trunk region. Scales are bluntly arrowheadshaped with deep posterior incision and thick strongly curved spines. Both scales and spines increase in size from anterior to posterior. Pharynx 26–27 µm.
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</paragraph>
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</subSubSection>
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<subSubSection id="C36E65406D17FFE5F2B0F8208FDEFE09" lastPageId="16" lastPageNumber="479" pageId="14" pageNumber="477" type="description">
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<paragraph id="8BCB36CB6D17FFFBF2B0F8208BA1F83A" blockId="14.[151,1436,1562,2019]" pageId="14" pageNumber="477">
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<emphasis id="B900EAD96D17FFFBF2B0F8208B1BF842" bold="true" box="[199,345,1922,1947]" pageId="14" pageNumber="477">Description.</emphasis>
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A typical species of
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<taxonomicName id="4C744D486D17FFFBF036F821888CF842" box="[577,718,1923,1947]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="14" pageNumber="477" phylum="Gastrotricha" rank="genus">
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<emphasis id="B900EAD96D17FFFBF036F821888CF842" box="[577,718,1923,1947]" italics="true" pageId="14" pageNumber="477">Chaetonotus</emphasis>
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</taxonomicName>
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, 120–130 µm in total body length. Head weakly five-lobed with two pairs of short sensory ciliary tufts. Head plates weakly cuticularized, cephalion 9 µm in diameter. Dorsal sensory bristles not observed.
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</paragraph>
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<paragraph id="8BCB36CB6D16FFFAF2B0FF358B6AFE74" blockId="15.[151,1436,151,429]" pageId="15" pageNumber="478">Body width 21 µm at the head (U07), 16–17 µm at the neck (U18), 21 µm at the trunk (U53) and 9–10 µm at the base of the furca (U88). Head as wide as trunk but well delimited by a neck constriction. Furca straight, 10–15 µm in length, and somewhat separated from the trunk by weak constriction. Adhesive tubes are thin and account for 5–8 µm of the total furca length. Proximal parts of furcal branches naked. In the head/neck region there are 7 columns of dorsal scales and in the dorsal trunk region only 5 columns of scales. Dorsal scales are distributed in 18 rows and increase in size from anterior to posterior end. The arrowhead-shaped scales are deeply incised distally, without keels. Their edges are slightly rounded. Spines increase in length from 2–3 µm at the head to 10 µm in the trunk region.</paragraph>
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<caption id="DF0B66436D16FFFAF2E0F8048A9DF802" httpUri="https://zenodo.org/record/230708/files/figure.png" pageId="15" pageNumber="478" targetBox="[508,1069,492,1926]" targetPageId="15">
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<paragraph id="8BCB36CB6D16FFFAF2E0F8048A9DF802" blockId="15.[151,1435,1958,2011]" pageId="15" pageNumber="478">
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<emphasis id="B900EAD96D16FFFAF2E0F8048B54F862" bold="true" box="[151,278,1958,1980]" pageId="15" pageNumber="478">FIGURE 8.</emphasis>
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Schematic drawing of
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<taxonomicName id="4C744D486D16FFFAF065F80489EAF865" box="[530,936,1958,1980]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="15" pageNumber="478" phylum="Gastrotricha" rank="species" species="ontariensis" subGenus="Chaetonotus">
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<emphasis id="B900EAD96D16FFFAF065F80489EAF865" box="[530,936,1958,1980]" italics="true" pageId="15" pageNumber="478">Chaetonotus (Chaetonotus) ontariensis</emphasis>
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</taxonomicName>
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. A) Dorsal view. B) Spined scale of the trunk region.
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</paragraph>
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</caption>
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<paragraph id="8BCB36CB6D09FFE5F2B0FF3588E6FF69" blockId="16.[151,1437,151,464]" box="[199,676,151,176]" pageId="16" pageNumber="479">The ventral surface could not be observed.</paragraph>
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<paragraph id="8BCB36CB6D09FFE5F2B0FF1E8F17FF0C" blockId="16.[151,1437,151,464]" box="[199,1365,188,213]" pageId="16" pageNumber="479">Mouth subterminal, 4–5 µm in diameter. Pharynx, 26–27 µm in length, widens towards the PhIJ at U25.</paragraph>
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<paragraph id="8BCB36CB6D09FFE5F2B0FF7D8FDEFE09" blockId="16.[151,1437,151,464]" pageId="16" pageNumber="479">
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<emphasis id="B900EAD96D09FFE5F2B0FF7D8B82FF21" bold="true" box="[199,448,223,248]" pageId="16" pageNumber="479">Taxonomic remarks.</emphasis>
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Based on its short, simple spines and arrowhead-shaped scales,
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<taxonomicName id="4C744D486D09FFE5F6DDFF428FC2FF2E" box="[1194,1408,224,247]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="ontariensis" subGenus="Chaetonotus">
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<emphasis id="B900EAD96D09FFE5F6DDFF428FC2FF2E" box="[1194,1408,224,247]" italics="true" pageId="16" pageNumber="479">C. (C.) ontariensis</emphasis>
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</taxonomicName>
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is closely related to a group of species comprising among others
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<taxonomicName id="4C744D486D09FFE5F115FEA68F29FEC5" authority="Zelinka, 1889" authorityName="Zelinka" authorityYear="1889" box="[866,1387,260,285]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="brevispinosus" subGenus="Chaetonotus">
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<emphasis id="B900EAD96D09FFE5F115FEA68E84FEC5" box="[866,1222,260,284]" italics="true" pageId="16" pageNumber="479">Chaetonotus (C.) brevispinosus</emphasis>
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<bibRefCitation id="EFE54B3A6D09FFE5F6B9FEA68F29FEC5" author="Zelinka" box="[1230,1387,260,285]" pageId="16" pageNumber="479" refString="Zelinka, C. (1889) Die Gastrotrichen. Eine monographische Darstellung ihrer Anatomie, Biologie und Systematik. Zeitschrift fur Wissenschaftliche Zoologie, 49, 209 - 384." type="journal article" year="1889">Zelinka, 1889</bibRefCitation>
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</taxonomicName>
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and
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<taxonomicName id="4C744D486D09FFE5F2E0FE8A88E5FE99" authority="Greuter, 1917" authorityName="Greuter" authorityYear="1917" box="[151,679,296,320]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="polyspinosus" subGenus="Chaetonotus">
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<emphasis id="B900EAD96D09FFE5F2E0FE8A8BBBFE99" box="[151,505,296,320]" italics="true" pageId="16" pageNumber="479">Chaetonotus (C.) polyspinosus</emphasis>
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<bibRefCitation id="EFE54B3A6D09FFE5F073FE8A88E5FE99" author="Greuter" box="[516,679,296,320]" pageId="16" pageNumber="479" refString="Greuter, A. (1917) Beitrage zur Systematik der Gastrotrichen in der Schweiz. Revue Suisse de Zoologie, 25, 35 - 76." type="journal article" year="1917">Greuter, 1917</bibRefCitation>
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</taxonomicName>
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. The low number of scales indicates a relationship with
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<taxonomicName id="4C744D486D09FFE5F73DFE8A8B72FEBD" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="brevispinosus" subGenus="Chaetonotus">
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||
<emphasis id="B900EAD96D09FFE5F73DFE8A8B72FEBD" italics="true" pageId="16" pageNumber="479">C. (C.) brevispinosus</emphasis>
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</taxonomicName>
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but this species has a higher number of dorsal columns and thinner trunk spines.
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<taxonomicName id="4C744D486D09FFE5F693FEEE8B01FE51" authority="Schwank, 1990" authorityName="Schwank" authorityYear="1990" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="oculatus" subGenus="Chaetonotus">
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<emphasis id="B900EAD96D09FFE5F693FEEE8FDEFEBD" box="[1252,1436,332,356]" italics="true" pageId="16" pageNumber="479">C. (C.) oculatus</emphasis>
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<bibRefCitation id="EFE54B3A6D09FFE5F2E0FECD8B01FE51" author="Schwank" box="[151,323,367,392]" pageId="16" pageNumber="479" refString="Schwank, P. (1990) Gastrotricha. In: Schwoerbel, J. & Zwick, P. (Eds.), Sußwasserfauna von Mitteleuropa, Band 3. Gastrotricha und Nemertini. Gustav Fischer Verlag, Stuttgart, Jena, New York, pp. 1 - 252." type="book chapter" year="1990">Schwank, 1990</bibRefCitation>
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</taxonomicName>
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has a pair of ocellar granules, longer sensory ciliary tufts and a higher total number of dorsal scales. Species within the series
|
||
<taxonomicName id="4C744D486D09FFE5F3B3FE368817FE75" box="[452,597,404,428]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="polyspinosus">
|
||
<emphasis id="B900EAD96D09FFE5F3B3FE368817FE75" box="[452,597,404,428]" italics="true" pageId="16" pageNumber="479">polyspinosus</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<emphasis id="B900EAD96D09FFE5F0E3FE36896CFE75" box="[660,814,404,428]" italics="true" pageId="16" pageNumber="479">multispinosus</emphasis>
|
||
(see
|
||
<bibRefCitation id="EFE54B3A6D09FFE5F106FE368E5FFE75" author="Schwank" box="[881,1053,404,429]" pageId="16" pageNumber="479" refString="Schwank, P. (1990) Gastrotricha. In: Schwoerbel, J. & Zwick, P. (Eds.), Sußwasserfauna von Mitteleuropa, Band 3. Gastrotricha und Nemertini. Gustav Fischer Verlag, Stuttgart, Jena, New York, pp. 1 - 252." type="book chapter" year="1990">Schwank 1990</bibRefCitation>
|
||
) have many more dorsal spines.
|
||
<taxonomicName id="4C744D486D09FFE5F2E0FE1A8827FE09" authority="Brunson, 1950" authorityName="Brunson" authorityYear="1950" box="[151,613,439,464]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="16" pageNumber="479" phylum="Gastrotricha" rank="species" species="vulgaris" subGenus="Chaetonotus">
|
||
<emphasis id="B900EAD96D09FFE5F2E0FE1A8BF8FE09" box="[151,442,440,464]" italics="true" pageId="16" pageNumber="479">Chaetonotus (C.) vulgaris</emphasis>
|
||
<bibRefCitation id="EFE54B3A6D09FFE5F3B6FE1A8827FE09" author="Brunson" box="[449,613,439,464]" pageId="16" pageNumber="479" refString="Brunson, R. B. (1950) An introduction to the taxonomy of the Gastrotricha with a study of eighteen species from Michigan. Transactions of the American Microscopical Society, 69, 325 - 352." type="journal article" year="1950">Brunson, 1950</bibRefCitation>
|
||
</taxonomicName>
|
||
is similar but apparently this species has no scales that anchor the spines.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |