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<document id="30B18C8090E4E3BA178E078FAB6A14EF" ID-CLB-Dataset="168313" ID-DOI="10.5852/ejt.2022.840.1941" ID-GBIF-Dataset="6129e7b4-3989-478f-8494-65e0fda5194f" ID-ISSN="2118-9773" ID-Zenodo-Dep="7195216" ID-ZooBank="CE89365D-A3C5-483D-9C80-E5CAECCA740F" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1665683179388" checkinUser="felipe" docAuthor="Križanová, Františka Rataj &amp; Vďačný, Peter" docDate="2022" docId="03D72F3EFF98FF8550A8DC362C0EFDC8" docLanguage="en" docName="ejt-840_1-93.pdf" docOrigin="European Journal of Taxonomy 840" docSource="http://dx.doi.org/10.5852/ejt.2022.840.1941" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Chaetonotus (Hystricochaetonotus) iratus Križanová &amp; Vďačný 2022, sp. nov." docType="treatment" docUuid="1A749F30-3FDF-4A02-8923-1DAE313BAB8E" docUuidSource="ZooBank" docVersion="8" lastPageNumber="59" masterDocId="FFEE5746FFAEFFBF5143DD3E2959FFB6" masterDocTitle="A huge undescribed diversity of the subgenus Hystricochaetonotus (Gastrotricha, Chaetonotidae, Chaetonotus) in Central Europe" masterLastPageNumber="93" masterPageNumber="1" pageNumber="55" updateTime="1699407395920" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="CF441858DAD490F72843631E1C5E29C1">A huge undescribed diversity of the subgenus Hystricochaetonotus (Gastrotricha, Chaetonotidae, Chaetonotus) in Central Europe</mods:title>
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<mods:namePart id="A8DB93EDF84A39D4ACE7C9C032735DC2">Križanová, Františka Rataj</mods:namePart>
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<mods:affiliation id="617430ABD784E4F0CDA50688B672EAEB">Department of Zoology, Comenius University in Bratislava, 842 15 Bratislava, Slovakia.</mods:affiliation>
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<mods:namePart id="5C09D3A5E94579C045F817496B4C8A63">Vďačný, Peter</mods:namePart>
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<mods:affiliation id="E464689708B8F1408EC43D70DFE521F2">Department of Zoology, Comenius University in Bratislava, 842 15 Bratislava, Slovakia.</mods:affiliation>
<mods:nameIdentifier id="CAD90490CFCBF879C15763B0C78EAD91" type="email">peter.vdacny@uniba.sk</mods:nameIdentifier>
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<mods:title id="BF2FEA8563F78BEE06FFC789EC78B5F2">European Journal of Taxonomy</mods:title>
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<mods:date id="61C3304F9DB582CF039C1F75E9D59F7F">2022</mods:date>
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<treatment id="03D72F3EFF98FF8550A8DC362C0EFDC8" ID-DOI="http://doi.org/10.5281/zenodo.7195234" ID-GBIF-Taxon="203115298" ID-Zenodo-Dep="7195234" LSID="urn:lsid:zoobank.org:act:1A749F30-3FDF-4A02-8923-1DAE313BAB8E" httpUri="http://treatment.plazi.org/id/03D72F3EFF98FF8550A8DC362C0EFDC8" lastPageId="58" lastPageNumber="59" pageId="54" pageNumber="55">
<subSubSection id="C364CDA3FF98FF8950A8DC362D11FE92" box="[491,1096,264,292]" pageId="54" pageNumber="55" type="nomenclature">
<paragraph id="8BC19E28FF98FF8950A8DC362D11FE92" blockId="54.[363,1225,264,362]" box="[491,1096,264,292]" pageId="54" pageNumber="55">
<heading id="D0892944FF98FF8950A8DC362D11FE92" box="[491,1096,264,292]" centered="true" fontSize="11" level="2" pageId="54" pageNumber="55" reason="2">
<taxonomicName id="4C7EE5ABFF98FF8950A8DC362ABFFE95" ID-CoL="b19623a4-02c9-4b3f-8837-e585264c8073" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[491,998,264,291]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="54" pageNumber="55" phylum="Gastrotricha" rank="species" species="iratus" status="sp. nov." subGenus="Hystricochaetonotus">
<emphasis id="B90A423AFF98FF8950A8DC362ABFFE95" bold="true" box="[491,998,264,291]" pageId="54" pageNumber="55">
<emphasis id="B90A423AFF98FF8950A8DC362BDDFE95" bold="true" box="[491,644,264,291]" italics="true" pageId="54" pageNumber="55">Chaetonotus</emphasis>
(
<emphasis id="B90A423AFF98FF8953D5DC362AD6FE95" bold="true" box="[662,911,264,291]" italics="true" pageId="54" pageNumber="55">Hystricochaetonotus</emphasis>
)
<emphasis id="B90A423AFF98FF8952E3DC372ABFFE95" bold="true" box="[928,998,265,291]" italics="true" pageId="54" pageNumber="55">iratus</emphasis>
</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF98FF8952ADDC342D11FE92" box="[1006,1096,266,292]" pageId="54" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C364CDA3FF98FF895028DC122AB8FEDC" pageId="54" pageNumber="55" type="description">
<paragraph id="8BC19E28FF98FF895028DC122D90FEF0" blockId="54.[363,1225,264,362]" box="[363,1225,300,326]" pageId="54" pageNumber="55">
<uri id="FFEF922AFF98FF895028DC122D90FEF0" box="[363,1225,300,326]" pageId="54" pageNumber="55">
urn:lsid:zoobank.org:act:
<uuid id="FFD8A4FDFF98FF8953CFDC122D90FEF0" box="[652,1225,300,326]" pageId="54" pageNumber="55">1A749F30-3FDF-4A02-8923-1DAE313BAB8E</uuid>
</uri>
</paragraph>
<paragraph id="8BC19E28FF98FF895311DC712AB8FEDC" blockId="54.[363,1225,264,362]" box="[594,993,335,362]" pageId="54" pageNumber="55">
<figureCitation id="134582ADFF98FF895311DC712B81FEDC" box="[594,728,335,362]" captionStart-0="Fig" captionStart-1="Fig" captionStartId-0="56.[189,232,1854,1880]" captionStartId-1="57.[189,232,1814,1840]" captionTargetBox-0="[207,1381,266,1810]" captionTargetBox-1="[244,1344,265,1777]" captionTargetId-0="figure-17@56.[203,1385,265,1816]" captionTargetId-1="figure-11@57.[244,1344,265,1777]" captionTargetPageId-0="56" captionTargetPageId-1="57" captionText-0="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." captionText-1="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi-0="http://doi.org/10.5281/zenodo.7195304" figureDoi-1="http://doi.org/10.5281/zenodo.7195308" httpUri-0="https://zenodo.org/record/7195304/files/figure.png" httpUri-1="https://zenodo.org/record/7195308/files/figure.png" pageId="54" pageNumber="55">Figs 31‒32</figureCitation>
; Supp. file 1:
<tableCitation id="C6FCAB93FF98FF895239DC712AB8FEDC" box="[890,993,335,362]" captionStart="Table 7" captionStartId="78.[184,254,565,593]" captionTargetPageId="78" captionText="Table 7 (continued on next page). Comparison of Chaetonotus (Hystricochaetonotus) superbus sp. nov., Chaetonotus (Hystricochaetonotus) arcanus sp. nov., and Chaetonotus (Hystricochaetonotus) luxus sp. nov. with most similar congeners. Abbreviation: n.a. = data not available." httpUri="http://table.plazi.org/id/DF01CEA0FFE0FFF151FBDF0B2F9FFDC3" pageId="54" pageNumber="55" tableUuid="DF01CEA0FFE0FFF151FBDF0B2F9FFDC3">Table S7</tableCitation>
</paragraph>
</subSubSection>
<subSubSection id="C364CDA3FF98FF8951FEDCAF2C01FAF0" pageId="54" pageNumber="55" type="diagnosis">
<paragraph id="8BC19E28FF98FF8951FEDCAF28A9FE1D" blockId="54.[189,496,401,427]" box="[189,496,401,427]" pageId="54" pageNumber="55">
<heading id="D0892944FF98FF8951FEDCAF28A9FE1D" bold="true" box="[189,496,401,427]" fontSize="11" level="3" pageId="54" pageNumber="55" reason="3">
<emphasis id="B90A423AFF98FF8951FEDCAF28A9FE1D" bold="true" box="[189,496,401,427]" pageId="54" pageNumber="55">Morphological diagnosis</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF98FF8951FEDC8128F6FCA0" blockId="54.[189,1399,447,790]" pageId="54" pageNumber="55">Body elongated and about 124 µm long. Head slightly wider than neck, separated from trunk by an inconspicuous neck constriction. Cephalion, epipleurae, and hypopleurae clearly demarcated. Trunk widest at ca U61, gradually tapers towards furca base (U82). Mouth ventral, one central cuticular tooth. Hypostomium bears two parallel, horizontally arranged lamellae accompanied by tear-shaped protuberances. Pharynx without dilatations. Intestine straight, with a marked anterior section. Scales spined, three-lobed, slightly overlapping, distributed in about 12 columns, 22 scales per column. Scales and spines increase gradually in size in a posterior direction. Dorsal surface covered by scales from posterior end of cephalion (ca U4) to furca branches (ca U83). Furca branches slightly shorter than adhesive tubes, lateral margins more or less straight, furcal indentation V-shaped, adhesive tubes comparatively short.</paragraph>
<paragraph id="8BC19E28FF98FF8951FEDE0028E1FCE1" blockId="54.[189,440,829,856]" box="[189,440,829,856]" pageId="54" pageNumber="55">
<heading id="D0892944FF98FF8951FEDE0028E1FCE1" bold="true" box="[189,440,829,856]" fontSize="11" level="3" pageId="54" pageNumber="55" reason="3">
<emphasis id="B90A423AFF98FF8951FEDE0028E1FCE1" bold="true" box="[189,440,829,856]" pageId="54" pageNumber="55">Molecular diagnosis</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF98FF8951FEDE522AA1FC46" blockId="54.[189,1399,876,1009]" pageId="54" pageNumber="55">
18S rRNA gene: 1716 C. ITS2: 38 C, 61 T, 67 C, 68 A, 85 T, 86 G, 91 C, 103 C, 113 T, 114 A, 124 A, 129 G, 155 C. 28S rRNA gene: 465 C, 656 T, 674 G. Cytochrome
<emphasis id="B90A423AFF98FF89529CDEAE2AB5FC1F" box="[991,1004,912,937]" italics="true" pageId="54" pageNumber="55">c</emphasis>
oxidase subunit I (codon ordinal numbers are followed by the corresponding span of nucleotide positions in parentheses): 123 (367‒369) GTG, 159 (475‒477) CGG, 186 (556‒558) CTA, 216 (646‒648) ATC.
</paragraph>
<paragraph id="8BC19E28FF98FF8951FED9292B07FBCE" blockId="54.[189,1398,1047,1144]" pageId="54" pageNumber="55">
Reference molecules are shown in Supp. file 1:
<figureCitation id="134582ADFF98FF895273D9292ACAFB84" box="[816,915,1047,1074]" captionStart="Fig" captionStartId="11.[189,232,1814,1840]" captionTargetBox="[190,1395,276,1752]" captionTargetId="figure-11@11.[189,1398,267,1758]" captionTargetPageId="11" captionText="Fig. 5. Secondary structure of the 18S rRNA molecule of Chaetonotus (Hystricochaetonotus) mirabilis sp. nov. The single diagnostic molecular autapomorphy (red arrow) is situated in the terminal loop of helix 21es6c in the V4 region of the C domain. Note the long-range tertiary contacts between the V2 and V4 regions (highlighted in pink). The reference 18S secondary structure map of Saccharomyces cerevisiae Meyen ex E.C.Hansen (inset) is from http://apollo.chemistry.gatech.edu/RibosomeGallery (Petrov et al. 2014)." figureDoi="http://doi.org/10.5281/zenodo.7195230" httpUri="https://zenodo.org/record/7195230/files/figure.png" pageId="54" pageNumber="55">Figs S5</figureCitation>
, S
<figureCitation id="134582ADFF98FF8952FBD9292D4BFB87" box="[952,1042,1047,1073]" captionStart="Fig" captionStartId="21.[189,232,1920,1946]" captionTargetBox="[196,1388,703,1871]" captionTargetId="figure-166@21.[189,1398,697,1881]" captionTargetPageId="21" captionText="Fig. 11. Scales of Chaetonotus (Hystricochaetonotus) mirabilis sp. nov. A. Head lateral scales. B. Head dorsal scales. C. Neck dorsal scales. D. Trunk lateral scale. E. Trunk dorsolateral scale. F. Trunk dorsal scale. G. Terminal dorsal scale. H. Furcal ventral three-lobed scales. I. Furcal ventral oblong scales." figureDoi="http://doi.org/10.5281/zenodo.7195246" httpUri="https://zenodo.org/record/7195246/files/figure.png" pageId="54" pageNumber="55">11A, S</figureCitation>
<figureCitation id="134582ADFF98FF895551D9292D6BFB87" box="[1042,1074,1047,1073]" captionStart="Fig" captionStartId="30.[189,232,1816,1842]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-17@30.[244,1344,265,1777]" captionTargetPageId="30" captionText="Fig. 17. Chaetonotus (Hystricochaetonotus) superbus sp. nov., differential interference contrast. A–B. Paratype (CU-FNS-22-06-20/PA). C–G. Holotype (CU-FNS-15-06-20/HO). A. Detail showing the salivary gland, pharyngeal-intestinal junction, and differentiated anterior section of the intestine. B. Detail showing the connection of transversal bands to the base of scales. C. Detail showing the anterior portion of the digestive tract. D. Head scales. E. Neck scales. F. Spines. G. Trunk spined scales. Scale bars: A–B, D‒G = 5 µm; C = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.7195262" httpUri="https://zenodo.org/record/7195262/files/figure.png" pageId="54" pageNumber="55">17</figureCitation>
. All diagnostic molecular autapomorphies are marked by arrows. Reference alignments with corresponding nucleotide positions are in Supp. file 1: Alignments 1‒4.
</paragraph>
<paragraph id="8BC19E28FF98FF8951FED9A12C01FAF0" blockId="54.[189,1399,1183,1350]" pageId="54" pageNumber="55">
The
<emphasis id="B90A423AFF98FF8951B5D99E285CFB0F" box="[246,261,1184,1209]" italics="true" pageId="54" pageNumber="55">p</emphasis>
-distance from species described in the present study is 0.05‒4.33% in 18S, 14.44‒37.76% in ITS2, 0.25‒9.79% in 28S, and 5.62‒12.74% in COI. There are 1‒16 CBCs (except for
<emphasis id="B90A423AFF98FF8955F1D9FC2D82FB6A" box="[1202,1243,1218,1244]" italics="true" pageId="54" pageNumber="55">Ch.</emphasis>
(
<emphasis id="B90A423AFF98FF8955AFD9FD2C58FB6A" box="[1260,1281,1219,1244]" italics="true" pageId="54" pageNumber="55">H</emphasis>
).
<taxonomicName id="4C7EE5ABFF98FF895459D9FD2C2EFB6A" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[1306,1399,1219,1244]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="54" pageNumber="55" phylum="Gastrotricha" rank="species" species="arcanus" status="sp. nov.">
<emphasis id="B90A423AFF98FF895459D9FD2C2EFB6A" box="[1306,1399,1219,1244]" italics="true" pageId="54" pageNumber="55">arcanus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF98FF8951FED9D82841FAB6" box="[189,280,1254,1280]" pageId="54" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
,
<emphasis id="B90A423AFF98FF895061D9DB2812FB49" box="[290,331,1253,1279]" italics="true" pageId="54" pageNumber="55">Ch.</emphasis>
(
<emphasis id="B90A423AFF98FF895019D9D82836FB49" box="[346,367,1254,1279]" italics="true" pageId="54" pageNumber="55">H</emphasis>
).
<taxonomicName id="4C7EE5ABFF98FF8950C5D9DB289AFB49" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[390,451,1253,1279]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="54" pageNumber="55" phylum="Gastrotricha" rank="species" species="luxus" status="sp. nov.">
<emphasis id="B90A423AFF98FF8950C5D9DB289AFB49" box="[390,451,1253,1279]" italics="true" pageId="54" pageNumber="55">luxus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF98FF89508BD9D82B7DFAB6" box="[456,548,1254,1280]" pageId="54" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
, and
<emphasis id="B90A423AFF98FF89531DD9DB2BDEFB49" box="[606,647,1253,1279]" italics="true" pageId="54" pageNumber="55">Ch.</emphasis>
(
<emphasis id="B90A423AFF98FF8953D5D9D82BF2FB49" box="[662,683,1254,1279]" italics="true" pageId="54" pageNumber="55">H</emphasis>
).
<taxonomicName id="4C7EE5ABFF98FF895381D9DB2A46FB49" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[706,799,1253,1279]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="54" pageNumber="55" phylum="Gastrotricha" rank="species" species="slavicus" status="sp. nov.">
<emphasis id="B90A423AFF98FF895381D9DB2A46FB49" box="[706,799,1253,1279]" italics="true" pageId="54" pageNumber="55">slavicus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF98FF895267D9D82AD9FAB6" box="[804,896,1254,1280]" pageId="54" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
, where there are no CBCs) in the 18S rRNA molecule, 1‒3 CBCs in the ITS2 molecule, and 1‒18 CBCs in the first two domains of the 28S rRNA molecule (except for
<emphasis id="B90A423AFF98FF8950F7D8122884FAF0" box="[436,477,1324,1350]" italics="true" pageId="54" pageNumber="55">Ch.</emphasis>
(
<emphasis id="B90A423AFF98FF8950ADD8132B5AFAF0" box="[494,515,1325,1350]" italics="true" pageId="54" pageNumber="55">H</emphasis>
).
<taxonomicName id="4C7EE5ABFF98FF895358D8122B01FAF0" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[539,600,1324,1350]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="54" pageNumber="55" phylum="Gastrotricha" rank="species" species="luxus" status="sp. nov.">
<emphasis id="B90A423AFF98FF895358D8122B01FAF0" box="[539,600,1324,1350]" italics="true" pageId="54" pageNumber="55">luxus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF98FF89531CD8122BE0FAF0" box="[607,697,1324,1350]" pageId="54" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
and
<emphasis id="B90A423AFF98FF8953B3D8122A43FAF0" box="[752,794,1324,1350]" italics="true" pageId="54" pageNumber="55">Ch.</emphasis>
(
<emphasis id="B90A423AFF98FF895269D8132A66FAF0" box="[810,831,1325,1350]" italics="true" pageId="54" pageNumber="55">H</emphasis>
).
<taxonomicName id="4C7EE5ABFF98FF89521BD8122AECFAF0" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[856,949,1324,1350]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="54" pageNumber="55" phylum="Gastrotricha" rank="species" species="slavicus" status="sp. nov.">
<emphasis id="B90A423AFF98FF89521BD8122AECFAF0" box="[856,949,1324,1350]" italics="true" pageId="54" pageNumber="55">slavicus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF98FF8952FFD8122D41FAF0" box="[956,1048,1324,1350]" pageId="54" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
, where there are no CBCs).
</paragraph>
</subSubSection>
<subSubSection id="C364CDA3FF98FF8951FED8532840FA6F" pageId="54" pageNumber="55" type="etymology">
<paragraph id="8BC19E28FF98FF8951FED853281DFA31" blockId="54.[189,324,1389,1415]" box="[189,324,1389,1415]" pageId="54" pageNumber="55">
<heading id="D0892944FF98FF8951FED853281DFA31" bold="true" box="[189,324,1389,1415]" fontSize="11" level="3" pageId="54" pageNumber="55" reason="3">
<emphasis id="B90A423AFF98FF8951FED853281DFA31" bold="true" box="[189,324,1389,1415]" pageId="54" pageNumber="55">Etymology</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF98FF8951FED8A22840FA6F" blockId="54.[189,1399,1436,1497]" pageId="54" pageNumber="55">
The Latin adjective ‘
<emphasis id="B90A423AFF98FF8950F2D8A328B3FA00" box="[433,490,1437,1462]" italics="true" pageId="54" pageNumber="55">iratu</emphasis>
·
<emphasis id="B90A423AFF98FF8950B7D8A32B57FA00" box="[500,526,1437,1462]" italics="true" pageId="54" pageNumber="55">us</emphasis>
, -
<emphasis id="B90A423AFF98FF895365D8A32B6CFA00" box="[550,565,1437,1462]" italics="true" pageId="54" pageNumber="55">a</emphasis>
, -
<emphasis id="B90A423AFF98FF89530ED8A32B28FA00" box="[589,625,1437,1462]" italics="true" pageId="54" pageNumber="55">um</emphasis>
’ [m, f, n] (‘angry, irate’) refers to the spiny appearance of the new species.
</paragraph>
</subSubSection>
<subSubSection id="C364CDA3FF98FF8851FEDB3E2AE0FD9D" lastPageId="55" lastPageNumber="56" pageId="54" pageNumber="55" type="materials_examined">
<paragraph id="8BC19E28FF98FF8951FEDB3E28F3F9AC" blockId="54.[189,426,1536,1562]" box="[189,426,1536,1562]" pageId="54" pageNumber="55">
<heading id="D0892944FF98FF8951FEDB3E28F3F9AC" bold="true" box="[189,426,1536,1562]" fontSize="11" level="3" pageId="54" pageNumber="55" reason="3">
<emphasis id="B90A423AFF98FF8951FEDB3E28F3F9AC" bold="true" box="[189,426,1536,1562]" pageId="54" pageNumber="55">Material examined</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF98FF8951A9DB112D49F939" blockId="54.[189,1398,1583,1680]" pageId="54" pageNumber="55">
<materialsCitation id="3B169475FF98FF8951A9DB112D49F939" ID-GBIF-Occurrence="3926158306" country="Slovakia" county="Velka Fatra Mts" latitude="49.14064" location="Shallow section of the River Vah" longLatPrecision="1" longitude="19.170721" municipality="Stankovany" pageId="54" pageNumber="55" specimenCount="1" typeStatus="holotype">
<emphasis id="B90A423AFF98FF8951A9DB112805F9FF" bold="true" box="[234,348,1583,1609]" pageId="54" pageNumber="55">
<typeStatus id="54C5208AFF98FF8951A9DB112805F9FF" box="[234,348,1583,1609]" pageId="54" pageNumber="55" type="holotype">Holotype</typeStatus>
</emphasis>
<collectingCountry id="F369DEB8FF98FF8951FEDB6C2817F9DA" box="[189,334,1618,1644]" name="Slovakia" pageId="54" pageNumber="55">SLOVAKIA</collectingCountry>
•
<specimenCount id="9D7855A1FF98FF895027DB6C28C6F9DA" box="[356,415,1618,1644]" pageId="54" pageNumber="55" type="adult">adult</specimenCount>
(photomicrographs, hologenophore);
<location id="8EA1C8F3FF98FF89521ADB6C2D85F9DA" LSID="urn:lsid:plazi:treatment:03D72F3EFF98FF8550A8DC362C0EFDC8:8EA1C8F3FF98FF89521ADB6C2D85F9DA" box="[857,1244,1618,1644]" country="Slovakia" county="Velka Fatra Mts" latitude="49.14064" longLatPrecision="1" longitude="19.170721" municipality="Stankovany" name="Shallow section of the River Vah" pageId="54" pageNumber="55">Shallow section of the River Váh</location>
,
<collectingMunicipality id="6BA50452FF98FF8955A5DB6C2C2BF9DA" box="[1254,1394,1618,1644]" pageId="54" pageNumber="55">Stankovany</collectingMunicipality>
,
<collectingCounty id="62A0E6A4FF98FF8951FEDB4B2826F926" box="[189,383,1653,1680]" pageId="54" pageNumber="55">Veľká Fatra Mts</collectingCounty>
;
<geoCoordinate id="EE4AF8EFFF98FF8950CFDB4A2B6EF926" box="[396,567,1652,1680]" degrees="49" direction="north" minutes="08" orientation="latitude" pageId="54" pageNumber="55" precision="1" seconds="26.3" value="49.14064">49°08′26.3″ N</geoCoordinate>
,
<geoCoordinate id="EE4AF8EFFF98FF895300DB4A2BB5F926" box="[579,748,1652,1680]" degrees="19" direction="east" minutes="10" orientation="longitude" pageId="54" pageNumber="55" precision="1" seconds="14.6" value="19.170721">19°10′14.6″ E</geoCoordinate>
; CU-FNS-
<date id="FFC0B8E8FF98FF895233DB4B2A8EF939" box="[880,983,1653,1679]" pageId="54" pageNumber="55" value="2020-09-21">21-09-20</date>
/HO.
</materialsCitation>
</paragraph>
<paragraph id="8BC19E28FF98FF8951FEDB892DD7F942" blockId="54.[189,1399,1719,1781]" pageId="54" pageNumber="55">
Photomicrographs of the
<typeStatus id="54C5208AFF98FF8950A4DB892B17F967" box="[487,590,1719,1745]" pageId="54" pageNumber="55" type="holotype">holotype</typeStatus>
are available at the Department of Zoology, Comenius University in Bratislava at https://fns.uniba.sk/en/gastrotricha/. The
<typeStatus id="54C5208AFF98FF89527ADBE42AF9F942" box="[825,928,1754,1780]" pageId="54" pageNumber="55" type="holotype">holotype</typeStatus>
is shown in
<figureCitation id="134582ADFF98FF895577DBE42DD3F942" box="[1076,1162,1754,1780]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="54" pageNumber="55">Fig. 32</figureCitation>
.
</paragraph>
<paragraph id="8BC19E28FF98FF8951FEDA222835F883" blockId="54.[189,364,1819,1846]" box="[189,364,1819,1846]" pageId="54" pageNumber="55">
<heading id="D0892944FF98FF8951FEDA222835F883" bold="true" box="[189,364,1819,1846]" fontSize="11" level="3" pageId="54" pageNumber="55" reason="3">
<emphasis id="B90A423AFF98FF8951FEDA222835F883" bold="true" box="[189,364,1819,1846]" pageId="54" pageNumber="55">Type material</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF98FF8951FEDA742DC4F831" blockId="54.[189,1398,1866,1927]" pageId="54" pageNumber="55">
A DNA sample of the
<typeStatus id="54C5208AFF98FF89508BDA742B76F8D2" box="[456,559,1866,1892]" pageId="54" pageNumber="55" type="holotype">holotype</typeStatus>
specimen STV 65 has been deposited in the Natural History Museum, Vajanského nábrežie 2, 810 06 Bratislava,
<collectingCountry id="F369DEB8FF98FF8953F2DA532A41F831" box="[689,792,1901,1927]" name="Slovakia" pageId="54" pageNumber="55">Slovakia</collectingCountry>
(ID Collection Code 01427609).
</paragraph>
<paragraph id="8BC19E28FF99FF8851FEDC372804FE94" blockId="55.[189,349,264,291]" box="[189,349,264,291]" pageId="55" pageNumber="56">
<heading id="D0892944FF99FF8851FEDC372804FE94" bold="true" box="[189,349,264,291]" fontSize="11" level="3" pageId="55" pageNumber="56" reason="3">
<emphasis id="B90A423AFF99FF8851FEDC372804FE94" bold="true" box="[189,349,264,291]" pageId="55" pageNumber="56">Type locality</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF99FF8851FEDC092B78FEC3" blockId="55.[189,1398,311,373]" pageId="55" pageNumber="56">
Shallow section of the River Váh near the village of Stankovany, Veľká Fatra Mts,
<collectingCountry id="F369DEB8FF99FF88544BDC092C2BFEE7" box="[1288,1394,311,337]" name="Slovakia" pageId="55" pageNumber="56">Slovakia</collectingCountry>
,
<geoCoordinate id="EE4AF8EFFF99FF8851FEDC672830FEC3" box="[189,361,345,373]" degrees="49" direction="north" minutes="08" orientation="latitude" pageId="55" pageNumber="56" precision="1" seconds="26.3" value="49.14064">49°08′26.3″ N</geoCoordinate>
,
<geoCoordinate id="EE4AF8EFFF99FF885036DC672B44FEC3" box="[373,541,345,373]" degrees="19" direction="east" minutes="10" orientation="longitude" pageId="55" pageNumber="56" precision="1" seconds="14.6" value="19.170721">19°10′14.6″ E</geoCoordinate>
.
</paragraph>
<paragraph id="8BC19E28FF99FF8851FEDCA528D8FE00" blockId="55.[189,385,411,438]" box="[189,385,411,438]" pageId="55" pageNumber="56">
<heading id="D0892944FF99FF8851FEDCA528D8FE00" bold="true" box="[189,385,411,438]" fontSize="11" level="3" pageId="55" pageNumber="56" reason="3">
<emphasis id="B90A423AFF99FF8851FEDCA528D8FE00" bold="true" box="[189,385,411,438]" pageId="55" pageNumber="56">Gene sequences</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF99FF8851FEDCF42AE0FD9D" blockId="55.[189,1399,458,555]" pageId="55" pageNumber="56">
The nuclear 18S and
<collectionCode id="ED6F06EDFF99FF8850F5DCF428BDFE53" box="[438,484,458,485]" pageId="55" pageNumber="56">ITS</collectionCode>
1-5.8S-ITS2-28S rDNA sequences as well as the mitochondrial COI sequence of the
<typeStatus id="54C5208AFF99FF885052DCD32821FDB1" box="[273,376,493,519]" pageId="55" pageNumber="56" type="holotype">holotype</typeStatus>
specimen STV 65 have been deposited in GenBank under the following accession numbers:
<accessionNumber id="942D03CBFF99FF885072DF2F28E5FD9D" box="[305,444,529,555]" httpUri="https://www.ncbi.nlm.nih.gov/nuccore/OM421720" pageId="55" pageNumber="56" type="GenBank">
<collectionCode id="ED6F06EDFF99FF885072DF2F2838FD9D" box="[305,353,529,555]" country="New Zealand" name="Otago Museum" pageId="55" pageNumber="56">OM</collectionCode>
421720
</accessionNumber>
,
<accessionNumber id="942D03CBFF99FF885084DF2E2B0BFD9C" box="[455,594,528,554]" httpUri="https://www.ncbi.nlm.nih.gov/nuccore/OM421696" pageId="55" pageNumber="56" type="GenBank">
<collectionCode id="ED6F06EDFF99FF885084DF2E28AEFD9C" box="[455,503,528,554]" country="New Zealand" name="Otago Museum" pageId="55" pageNumber="56">OM</collectionCode>
421696
</accessionNumber>
, and
<accessionNumber id="942D03CBFF99FF8853CCDF2E2A40FD9D" box="[655,793,528,555]" httpUri="https://www.ncbi.nlm.nih.gov/nuccore/OM424075" pageId="55" pageNumber="56" type="GenBank">
<collectionCode id="ED6F06EDFF99FF8853CCDF2E2BE6FD9D" box="[655,703,528,555]" country="New Zealand" name="Otago Museum" pageId="55" pageNumber="56">OM</collectionCode>
424075
</accessionNumber>
, respectively.
</paragraph>
</subSubSection>
<subSubSection id="C364CDA3FF99FF8551FEDF6C2C0EFDC8" lastPageId="58" lastPageNumber="59" pageId="55" pageNumber="56" type="description">
<paragraph id="8BC19E28FF99FF8851FEDF6C2817FDDA" blockId="55.[189,334,594,620]" box="[189,334,594,620]" pageId="55" pageNumber="56">
<heading id="D0892944FF99FF8851FEDF6C2817FDDA" bold="true" box="[189,334,594,620]" fontSize="11" level="3" pageId="55" pageNumber="56" reason="3">
<emphasis id="B90A423AFF99FF8851FEDF6C2817FDDA" bold="true" box="[189,334,594,620]" pageId="55" pageNumber="56">Description</emphasis>
</heading>
</paragraph>
<paragraph id="8BC19E28FF99FF8851FEDFBF2DC6FC61" blockId="55.[189,1399,640,984]" pageId="55" pageNumber="56">
HABITUS.
<taxonomicName id="4C7EE5ABFF99FF88506CDFBE2A7BFD2C" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[303,802,640,667]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="55" pageNumber="56" phylum="Gastrotricha" rank="species" species="iratus" status="sp. nov." subGenus="Hystricochaetonotus">
<emphasis id="B90A423AFF99FF88506CDFBE289AFD2C" box="[303,451,640,666]" italics="true" pageId="55" pageNumber="56">Chaetonotus</emphasis>
(
<emphasis id="B90A423AFF99FF885094DFBE2B93FD2C" box="[471,714,640,666]" italics="true" pageId="55" pageNumber="56">Hystricochaetonotus</emphasis>
)
<emphasis id="B90A423AFF99FF88539DDFBF2A7BFD2C" box="[734,802,641,666]" italics="true" pageId="55" pageNumber="56">iratus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF99FF88526EDFBF2AD2FD2D" box="[813,907,641,667]" pageId="55" pageNumber="56" rank="species">sp. nov.</taxonomicNameLabel>
is about 124 µm long and has a slender elongated body, with a head region slightly broader than the neck and trunk (
<figureCitation id="134582ADFF99FF885512DF9A2D87FD08" box="[1105,1246,676,702]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31A, J</figureCitation>
,
<figureCitation id="134582ADFF99FF8855A8DF9A2C78FD08" box="[1259,1313,676,702]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32A</figureCitation>
). Body width is about 21.5 µm at U10, 20.0 µm at U50, and 22.5 µm at U60. The head is relatively wide (20.2 µm at U6), with a plate-like cephalion. Epi- and hypopleurae are clearly demarcated in the head outline (
<figureCitation id="134582ADFF99FF885186DE33280DFC9E" box="[197,340,781,808]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31A, J</figureCitation>
,
<figureCitation id="134582ADFF99FF885021DE3328CCFC91" box="[354,405,781,807]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32A</figureCitation>
). The neck (ca U13–U34) is only inconspicuously marked and smoothly continues to the trunk. In comparison with the head, the trunk is comparatively slender, gradually dilatating from about U35 to U61, where it reaches the maximum width. Then, the trunk gradually narrows towards U82, where more or less straight margins of the furca branches start to form. Dorsal sensory bristles were not observed. The furcal indentation is deeply V-shaped and approximately 19.4 µm long. Welldeveloped adhesive tubes are straight and approximately 10.7 µm long (
<figureCitation id="134582ADFF99FF885548DE832DC8FC61" box="[1035,1169,957,983]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Fig. 31A, J</figureCitation>
).
</paragraph>
<paragraph id="8BC19E28FF99FF8851FEDEC12AE4FA2A" blockId="55.[189,1399,1023,1436]" pageId="55" pageNumber="56">
HEAD. The cephalion (U1) is clearly demarcated in the body outline, distinctly flattened, and surrounds the mouth ventrally like a bib. The epipleurae are formed approximately at U3–U7 while the hypopleurae at U8–U14. The latter structures are well recognizable in the head outline (
<figureCitation id="134582ADFF99FF885517D97B2DBCFBD6" box="[1108,1253,1093,1120]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31A, J</figureCitation>
,
<figureCitation id="134582ADFF99FF8855B6D97B2C72FBE9" box="[1269,1323,1093,1119]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32A</figureCitation>
). Two pairs of cephalic ciliary tufts (6.9–18.8 µm) emerge laterally between the cephalion and the epipleurae edge (ca U3) as well as between the epi- and the hypopleurae edge (U7). The mouth ring is oval, approximately 6.9 µm in the largest diameter, and located subapically at U2–U5. There are strong but short, rod-like reinforcements lining the walls of the mouth ring and inner delicate structures directed towards the center of the mouth ring (
<figureCitation id="134582ADFF99FF8853C2D9CB2A58FAB9" box="[641,769,1269,1295]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31I–J</figureCitation>
,
<figureCitation id="134582ADFF99FF88524CD9CB2A3DFAB9" box="[783,868,1269,1295]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32C, F</figureCitation>
). One cuticular tooth is clearly visible in the center of the mouth ring (
<figureCitation id="134582ADFF99FF8850BED8262B3CFA85" box="[509,613,1304,1331]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31I</figureCitation>
,
<figureCitation id="134582ADFF99FF885336D8272BFEFA85" box="[629,679,1305,1331]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32F</figureCitation>
). The hypostomium (ca U5–U9) is composed of two more or less parallel, horizontally arranged lamellae whose lateral sides are accompanied by tear-shaped protuberances. Moreover, the lateral sides of the hypostomium are lined from U3 to U8 by relatively wide patches of irregularly arranged basal bodies (
<figureCitation id="134582ADFF99FF88524ED8BC2A2BFA2A" box="[781,882,1410,1436]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31I</figureCitation>
,
<figureCitation id="134582ADFF99FF88523DD8BC2AE9FA2A" box="[894,944,1410,1436]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32F</figureCitation>
).
</paragraph>
<paragraph id="8BC19E28FF99FF8851FED8FA2D6CF9DC" blockId="55.[189,1399,1475,1643]" pageId="55" pageNumber="56">
INTERNAL MORPHOLOGY. The pharynx extends from ca U5 to U31, is 28 µm long and 6.2–8.8 µm wide, sinuous, and without dilatations (
<figureCitation id="134582ADFF99FF885312D8D92BE2F9B7" box="[593,699,1511,1537]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Figs 31J</figureCitation>
,
<figureCitation id="134582ADFF99FF885388D8D92A7CF9B7" box="[715,805,1511,1537]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="55" pageNumber="56">32A–B</figureCitation>
). The intestine runs from U22 to U87 and has a separate, well-differentiated anterior section (U32–U35). Transversal bands connected to the base of dorsal scales are well recognizable. The adhesive gland is placed right behind the terminal part of the intestine (ca U85–U87), forming a short dichotomy at the subtle furca base.
</paragraph>
<paragraph id="8BC19E28FF99FF8551FEDBAC29BAFE3B" blockId="55.[189,1401,1682,1990]" lastBlockId="58.[189,1399,265,397]" lastPageId="58" lastPageNumber="59" pageId="55" pageNumber="56">
SCALES AND SPINES. Almost the entire body is covered by slightly overlapping, mostly three-lobed scales that adhere to the basal cuticle layer along either all or most of their perimeter. Scales are very densely packed, forming a minimum of 12 longitudinal rows on the dorsal side, with 22 scales in the central row. They have a rounded anterior lobe and elongated posterior lobes narrowly rounded distally. The transition between the anterior and posterior lobes is marked except for the ventro- and dorsolateral scales in which the transition is indistinct (
<figureCitation id="134582ADFF99FF8853F7DA7C2A1FF8EA" box="[692,838,1858,1884]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Fig. 31D‒G</figureCitation>
). The size of scales increases from 2.3×2.1 µm to 7.4×3.1 µm in a posterior direction. Dorsal furca branches scales are 4.3 ×3.4 µm in size, threelobed and spined but their anterior lobe is more elongated, their posterior lobes are slightly shorter and narrower, the transition between the anterior and posterior lobes is continuous and indistinct (
<figureCitation id="134582ADFF99FF8855BEDA952C3FF873" box="[1277,1382,1963,1989]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="55" pageNumber="56">Fig. 31H</figureCitation>
). Spines do not differentiate into various
<typeStatus id="54C5208AFF94FF8553CADC372B93FE95" box="[649,714,265,291]" pageId="58" pageNumber="59">types</typeStatus>
, only their length slightly increases from 2.3 µm to 6.5 µm in a posterior direction (
<figureCitation id="134582ADFF94FF85509CDC122BC8FEF1" box="[479,657,300,327]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="58" pageNumber="59">Figs 31A‒H, J</figureCitation>
,
<figureCitation id="134582ADFF94FF8553DCDC122BA3FEF1" box="[671,762,300,327]" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="58" pageNumber="59">32A, D</figureCitation>
, Supp. file 1:
<tableCitation id="C6FCAB93FF94FF8552E0DC122D49FEF0" box="[931,1040,300,326]" captionStart="Table 7" captionStartId="78.[184,254,565,593]" captionTargetPageId="78" captionText="Table 7 (continued on next page). Comparison of Chaetonotus (Hystricochaetonotus) superbus sp. nov., Chaetonotus (Hystricochaetonotus) arcanus sp. nov., and Chaetonotus (Hystricochaetonotus) luxus sp. nov. with most similar congeners. Abbreviation: n.a. = data not available." httpUri="http://table.plazi.org/id/DF01CEA0FFE0FFF151FBDF0B2F9FFDC3" pageId="58" pageNumber="59" tableUuid="DF01CEA0FFE0FFF151FBDF0B2F9FFDC3">Table S7</tableCitation>
). Spines are slightly narrower posteriorly but do not become hair-like terminally.A lateral denticle is not developed (
<figureCitation id="134582ADFF94FF8555E1DC712C68FEDF" box="[1186,1329,335,361]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="58" pageNumber="59">Figs 31B–C</figureCitation>
,
<figureCitation id="134582ADFF94FF85547EDC71298FFE3B" captionStart="Fig" captionStartId="57.[189,232,1814,1840]" captionTargetBox="[244,1344,265,1777]" captionTargetId="figure-11@57.[244,1344,265,1777]" captionTargetPageId="57" captionText="Fig. 32. Chaetonotus (Hystricochaetonotus) iratus sp. nov., holotype (CU-FNS-21-09-20/HO), differential interference contrast. A. Overview showing the internal morphology. B. Pharynx. C. Mouth. D. Head scales. E. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine. F. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm." figureDoi="http://doi.org/10.5281/zenodo.7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="58" pageNumber="59">32A, D</figureCitation>
).
</paragraph>
<caption id="DF01CEA0FF96FF8751FEDA002B8CF850" ID-DOI="http://doi.org/10.5281/zenodo.7195304" ID-Zenodo-Dep="7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="56" pageNumber="57" startId="56.[189,232,1854,1880]" targetBox="[207,1381,266,1810]" targetPageId="56">
<paragraph id="8BC19E28FF96FF8751FEDA002B8CF850" blockId="56.[189,1399,1854,2022]" pageId="56" pageNumber="57">
<emphasis id="B90A423AFF96FF8751FEDA002842F8EE" bold="true" box="[189,283,1854,1880]" pageId="56" pageNumber="57">Fig. 31.</emphasis>
<taxonomicName id="4C7EE5ABFF96FF875067DA002A4AF8EE" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[292,787,1854,1880]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="56" pageNumber="57" phylum="Gastrotricha" rank="species" species="iratus" status="sp. nov." subGenus="Hystricochaetonotus">
<emphasis id="B90A423AFF96FF875067DA0028E1F8EE" box="[292,440,1854,1880]" italics="true" pageId="56" pageNumber="57">Chaetonotus</emphasis>
(
<emphasis id="B90A423AFF96FF875089DA002BE4F8EE" box="[458,701,1854,1880]" italics="true" pageId="56" pageNumber="57">Hystricochaetonotus</emphasis>
)
<emphasis id="B90A423AFF96FF87538CDA012A4AF8EE" box="[719,787,1855,1880]" italics="true" pageId="56" pageNumber="57">iratus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF96FF87525FDA012A21F8EF" box="[796,888,1855,1881]" pageId="56" pageNumber="57" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="B90A423AFF96FF8752C3DA002ACCF8EE" bold="true" box="[896,917,1854,1880]" pageId="56" pageNumber="57">A</emphasis>
. Dorsal overview showing the scale and spine pattern.
<emphasis id="B90A423AFF96FF875028DA5C2826F8CA" bold="true" box="[363,383,1890,1916]" pageId="56" pageNumber="57">B</emphasis>
,
<emphasis id="B90A423AFF96FF8750D1DA5C28FEF8CA" bold="true" box="[402,423,1890,1916]" pageId="56" pageNumber="57">D</emphasis>
. Lateral and dorsal views of a head scale.
<emphasis id="B90A423AFF96FF875283DA5F2A8CF8CD" bold="true" box="[960,981,1889,1915]" pageId="56" pageNumber="57">C</emphasis>
,
<emphasis id="B90A423AFF96FF8752ABDA5C2AA3F8CA" bold="true" box="[1000,1018,1890,1916]" pageId="56" pageNumber="57">F</emphasis>
. Lateral and dorsal views of a trunk scale.
<emphasis id="B90A423AFF96FF87500DDABB2838F829" bold="true" box="[334,353,1925,1951]" pageId="56" pageNumber="57">E</emphasis>
. Dorsolateral head scale.
<emphasis id="B90A423AFF96FF8753D0DABA2BF3F828" bold="true" box="[659,682,1924,1950]" pageId="56" pageNumber="57">G</emphasis>
. Ventrolateral trunk scale.
<emphasis id="B90A423AFF96FF8752ABDABB2AA6F829" bold="true" box="[1000,1023,1925,1951]" pageId="56" pageNumber="57">H</emphasis>
. Furca branches scale.
<emphasis id="B90A423AFF96FF875457DABB2C46F829" bold="true" box="[1300,1311,1925,1951]" pageId="56" pageNumber="57">I</emphasis>
. Detail showing the mouth region.
<emphasis id="B90A423AFF96FF8750BEDA962B55F874" bold="true" box="[509,524,1960,1986]" pageId="56" pageNumber="57">J</emphasis>
. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm.
</paragraph>
</caption>
<caption id="DF01CEA0FF97FF8651FEDA282BDCF857" ID-DOI="http://doi.org/10.5281/zenodo.7195308" ID-Zenodo-Dep="7195308" httpUri="https://zenodo.org/record/7195308/files/figure.png" pageId="57" pageNumber="58" startId="57.[189,232,1814,1840]" targetBox="[244,1344,265,1777]" targetPageId="57">
<paragraph id="8BC19E28FF97FF8651FEDA282BDCF857" blockId="57.[189,1399,1814,2017]" pageId="57" pageNumber="58">
<emphasis id="B90A423AFF97FF8651FEDA28287FF886" bold="true" box="[189,294,1814,1840]" pageId="57" pageNumber="58">Fig. 32.</emphasis>
<taxonomicName id="4C7EE5ABFF97FF86507ADA282A67F886" authority="Križanová &amp; Vďačný, 2022" authorityName="Križanová &amp; Vďačný" authorityYear="2022" box="[313,830,1814,1841]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="57" pageNumber="58" phylum="Gastrotricha" rank="species" species="iratus" status="sp. nov." subGenus="Hystricochaetonotus">
<emphasis id="B90A423AFF97FF86507ADA282894F886" box="[313,461,1814,1840]" italics="true" pageId="57" pageNumber="58">Chaetonotus</emphasis>
(
<emphasis id="B90A423AFF97FF8650A9DA282B84F886" box="[490,733,1814,1840]" italics="true" pageId="57" pageNumber="58">Hystricochaetonotus</emphasis>
)
<emphasis id="B90A423AFF97FF8653B9DA292A67F886" box="[762,830,1815,1840]" italics="true" pageId="57" pageNumber="58">iratus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A239FF41FF97FF865212DA292AE3F887" box="[849,954,1815,1841]" pageId="57" pageNumber="58" rank="species">sp. nov.</taxonomicNameLabel>
, holotype (CU-FNS-21-09-20/HO), differential interference contrast.
<emphasis id="B90A423AFF97FF865302DA072B0FF8E5" bold="true" box="[577,598,1849,1875]" pageId="57" pageNumber="58">A</emphasis>
. Overview showing the internal morphology.
<emphasis id="B90A423AFF97FF86552EDA042DD8F8E2" bold="true" box="[1133,1153,1850,1876]" pageId="57" pageNumber="58">B</emphasis>
. Pharynx.
<emphasis id="B90A423AFF97FF8655BDDA072C4AF8E5" bold="true" box="[1278,1299,1849,1875]" pageId="57" pageNumber="58">C</emphasis>
. Mouth.
<emphasis id="B90A423AFF97FF8651FEDA63298BF8C1" bold="true" box="[189,210,1885,1911]" pageId="57" pageNumber="58">D</emphasis>
. Head scales.
<emphasis id="B90A423AFF97FF8650CEDA6328F8F8C1" bold="true" box="[397,417,1885,1911]" pageId="57" pageNumber="58">E</emphasis>
. Detail showing the posterior section of the pharynx, the pharyngeal-intestinal junction, and the differentiated anterior section of the intestine.
<emphasis id="B90A423AFF97FF8652F7DABE2A9CF82C" bold="true" box="[948,965,1920,1946]" pageId="57" pageNumber="58">F</emphasis>
. Detail of the mouth region. Arrows mark the hypostomial structures, asterisks mark the beginning of ciliary bands. Scale bars: A = 30 µm; B = 10 µm; C–D = 2 µm; E–F = 5 µm.
</paragraph>
</caption>
<paragraph id="8BC19E28FF94FF8551FEDC8B2C0EFDC8" blockId="58.[189,1399,436,639]" pageId="58" pageNumber="59">
VENTRAL CILIARY BANDS AND VENTRAL INTERCILIARY FIELD. Ventral ciliary bands commence almost right behind the hypostomium (U10) and terminate at ca U87. Their anterior region is broadened as typical of most species described herein. The ciliary bands are accompanied by two ventrolateral rows of threelobed scales that start at U13. They are 3.6–5.3× 2.5–3.1 µm in size and have a similar morphology as the dorsal and dorsolateral scales but the transition between the anterior and posterior lobes is continuous and hence indistinct (
<figureCitation id="134582ADFF94FF8550FBDF5A2B7CFDC8" box="[440,549,612,638]" captionStart="Fig" captionStartId="56.[189,232,1854,1880]" captionTargetBox="[207,1381,266,1810]" captionTargetId="figure-17@56.[203,1385,265,1816]" captionTargetPageId="56" captionText="Fig. 31. Chaetonotus (Hystricochaetonotus) iratus sp. nov. A. Dorsal overview showing the scale and spine pattern. B, D. Lateral and dorsal views of a head scale. C, F. Lateral and dorsal views of a trunk scale. E. Dorsolateral head scale. G. Ventrolateral trunk scale. H. Furca branches scale. I. Detail showing the mouth region. J. Internal morphology. The structure of the cerebral ganglion was observed only in a single specimen. Scale bar = 30 µm." figureDoi="http://doi.org/10.5281/zenodo.7195304" httpUri="https://zenodo.org/record/7195304/files/figure.png" pageId="58" pageNumber="59">Fig. 31G</figureCitation>
). Unfortunately, no further features of the ventral side were observed.
</paragraph>
</subSubSection>
</treatment>
</document>
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