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<document id="01A9705F79775FA73CB7929787C5A8E2" ID-DOI="10.5281/zenodo.275059" ID-GBIF-Dataset="72e72b29-f730-4120-b9e0-149bc3712652" ID-ISSN="1175-5326" ID-Zenodo-Dep="275059" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461098083975" checkinUser="plazi" docAuthor="Balsamo, Maria, Pierboni, Lara &amp; Grilli, Paolo" docDate="2009" docId="03F50F68FFABFFFFF0C1321682599F66" docLanguage="en" docName="zt02158p019.pdf" docOrigin="Zootaxa 2158" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Rhomballichthys Schwank 1990" docType="treatment" docVersion="6" lastPageNumber="6" masterDocId="FFCC7710FFAEFFFAF056336D830A9A58" masterDocTitle="Taxonomic and nomenclatural notes on freshwater Gastrotricha" masterLastPageNumber="19" masterPageNumber="1" pageNumber="6" updateTime="1698590045101" updateUser="plazi">
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<mods:title id="E2E09D1A5FD3565AE274A2091449AF71">Taxonomic and nomenclatural notes on freshwater Gastrotricha</mods:title>
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<treatment id="03F50F68FFABFFFFF0C1321682599F66" ID-DOI="http://doi.org/10.5281/zenodo.6212848" ID-GBIF-Taxon="119620944" ID-Zenodo-Dep="6212848" LSID="urn:lsid:plazi:treatment:03F50F68FFABFFFFF0C1321682599F66" httpUri="http://treatment.plazi.org/id/03F50F68FFABFFFFF0C1321682599F66" lastPageNumber="6" pageId="5" pageNumber="6">
<subSubSection id="C346EDF5FFABFFFFF0C1321682B59BA4" pageId="5" pageNumber="6" type="nomenclature">
<paragraph id="8BE3BE7EFFABFFFFF0C1321681749BCD" blockId="5.[151,638,379,406]" box="[151,638,379,406]" pageId="5" pageNumber="6">
<heading id="D0AB0912FFABFFFFF0C1321681749BCD" bold="true" box="[151,638,379,406]" fontSize="11" level="1" pageId="5" pageNumber="6" reason="1">
<emphasis id="B928626CFFABFFFFF0C1321681749BCD" bold="true" box="[151,638,379,406]" pageId="5" pageNumber="6">
Genus
<taxonomicName id="4C5CC5FDFFABFFFFF0B8321181749BCD" ID-CoL="7P6BL" authority="Schwank, 1990" authorityName="Schwank" authorityYear="1990" box="[238,638,379,406]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF0B8321182B19BCE" bold="true" box="[238,443,380,406]" italics="true" pageId="5" pageNumber="6">Rhomballichthys</emphasis>
Schwank, 1990
</taxonomicName>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BE3BE7EFFABFFFFF0C132A882B59BA4" blockId="5.[151,1436,453,572]" pageId="5" pageNumber="6">
<bibRef id="52FC2A88FFABFFFFF0C132A882B59BA4" pageId="5" pageNumber="6" type="journal article">
<author id="53E1569BFFABFFFFF0C132A882149B84" box="[151,286,453,476]" fns="I" npo="LF" pageId="5" pageNumber="6">Schwank, P.</author>
<year id="FFF4FF2DFFABFFFFF17E32A8826A9B84" box="[296,352,453,476]" pageId="5" pageNumber="6">1990</year>
,
<title id="F9585548FFABFFFFF12632A882FD9B84" box="[368,503,453,476]" jopScore="0.1571277" pageId="5" pageNumber="6">Gastrotricha</title>
. In:
<editor id="4DC0567DFFABFFFFF27832A881979B84" box="[558,669,453,476]" pageId="5" pageNumber="6">Brauer A.</editor>
(Ed)
<volumeTitle id="34F0DC4EFFABFFFFF2B432A887689B84" box="[738,1122,453,476]" jopScore="0.1725682" pageId="5" pageNumber="6">Süsswasserfauna von Mitteleuropa</volumeTitle>
. Bd. 3/
<part id="FFF814E3FFABFFFFF4EB32A887C29B84" box="[1213,1224,453,476]" pageId="5" pageNumber="6" type="volume">1</part>
:
<pagination id="B295408AFFABFFFFF48132A886169B84" box="[1239,1308,453,476]" pageId="5" pageNumber="6" type="pagination">1252</pagination>
.
<journalOrPublisher id="519DB4B2FFABFFFFF57D32A882729BA4" jopScore="2.1997879" pageId="5" pageNumber="6" type="_" typeScore="27">G. Fis c he r Verlag, Stuttgart</journalOrPublisher>
, p. 82.
</bibRef>
</paragraph>
</subSubSection>
<subSubSection id="C346EDF5FFABFFFFF0C1316882599F66" pageId="5" pageNumber="6" type="description">
<paragraph id="8BE3BE7EFFABFFFFF0C13168823F9864" blockId="5.[151,1436,453,572]" pageId="5" pageNumber="6">
<emphasis id="B928626CFFABFFFFF0C1316882249844" box="[151,302,517,540]" italics="true" pageId="5" pageNumber="6">
<typeStatus id="54E700DCFFABFFFFF0C1316883DF9844" box="[151,213,517,540]" pageId="5" pageNumber="6">Typus</typeStatus>
generis
</emphasis>
:
<taxonomicName id="4C5CC5FDFFABFFFFF11F316881FF9844" authority="Greuter, 1917" authorityName="Greuter" authorityYear="1917" box="[329,757,517,540]" class="Myxomycetes" family="Didymiaceae" genus="Lepidoderma" kingdom="Animalia" order="Physarales" pageId="5" pageNumber="6" phylum="Mycetozoa" rank="species" species="punctatum">
<emphasis id="B928626CFFABFFFFF11F316881589844" box="[329,594,517,540]" italics="true" pageId="5" pageNumber="6">Lepidoderma punctatum</emphasis>
Greuter, 1917
</taxonomicName>
; original designation by Schwank (1990) as
<taxonomicName id="4C5CC5FDFFABFFFFF4BF316882259864" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="punctatus">
<emphasis id="B928626CFFABFFFFF4BF316882259864" italics="true" pageId="5" pageNumber="6">Rhomballichthys punctatus</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BE3BE7EFFABFFFFF0C1310182599F66" blockId="5.[151,1437,620,1342]" pageId="5" pageNumber="6">
Schwank (1990) introduced the genus
<taxonomicName id="4C5CC5FDFFABFFFFF20D3101802A98DD" box="[603,800,620,645]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF20D3101802A98DD" box="[603,800,620,645]" italics="true" pageId="5" pageNumber="6">Rhomballichthys</emphasis>
</taxonomicName>
for three freshwater species with a complete cuticular covering of rhombic, unpedunculated scales, smooth or keeled, and with a very short, minute spiny process. These features combine those of three different genera (
<emphasis id="B928626CFFABFFFFF37331D48681988A" box="[805,1419,697,722]" italics="true" pageId="5" pageNumber="6">
<taxonomicName id="4C5CC5FDFFABFFFFF37331D480D9988A" box="[805,979,697,722]" family="Chaetonotidae" genus="Aspidiophorus" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">Aspidiophorus</taxonomicName>
,
<taxonomicName id="4C5CC5FDFFABFFFFF38831D48791988A" box="[990,1179,697,722]" family="Chaetonotidae" genus="Lepidodermella" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">Lepidodermella</taxonomicName>
,
<taxonomicName id="4C5CC5FDFFABFFFFF4F031D48681988A" box="[1190,1419,697,722]" family="Chaetonotidae" genus="Heterolepidoderma" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">Heterolepidoderma</taxonomicName>
</emphasis>
). Scale shape and habitus of the species remind the species of
<taxonomicName id="4C5CC5FDFFABFFFFF329318D872598A1" box="[895,1071,736,761]" family="Chaetonotidae" genus="Aspidiophorus" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF329318D872598A1" box="[895,1071,736,761]" italics="true" pageId="5" pageNumber="6">Aspidiophorus</emphasis>
</taxonomicName>
, which all have pedunculated scales. On the other hand, the
<taxonomicName id="4C5CC5FDFFABFFFFF1AE306A81B89978" box="[504,690,775,800]" family="Chaetonotidae" genus="Lepidodermella" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF1AE306A81B89978" box="[504,690,775,800]" italics="true" pageId="5" pageNumber="6">Lepidodermella</emphasis>
</taxonomicName>
species have smooth scales and the
<taxonomicName id="4C5CC5FDFFABFFFFF40A306A864A9978" box="[1116,1344,775,800]" family="Chaetonotidae" genus="Heterolepidoderma" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF40A306A864A9978" box="[1116,1344,775,800]" italics="true" pageId="5" pageNumber="6">Heterolepidoderma</emphasis>
</taxonomicName>
species have numerous, small, elliptical, generally keeled, unpedunculated scales. The
<emphasis id="B928626CFFABFFFFF49330408672991E" box="[1221,1400,813,838]" italics="true" pageId="5" pageNumber="6">
<typeStatus id="54E700DCFFABFFFFF49330408601991E" box="[1221,1291,813,838]" pageId="5" pageNumber="6">typus</typeStatus>
generis
</emphasis>
of
<taxonomicName id="4C5CC5FDFFABFFFFF0C1303982639935" box="[151,361,852,877]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF0C1303982639935" box="[151,361,852,877]" italics="true" pageId="5" pageNumber="6">Rhomballichthys</emphasis>
</taxonomicName>
,
<taxonomicName id="4C5CC5FDFFABFFFFF12C303981EE9936" authority="Greuter, 1917" authorityName="Greuter" authorityYear="1917" box="[378,740,852,878]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="punctatus">
<emphasis id="B928626CFFABFFFFF12C303981129935" box="[378,536,852,877]" italics="true" pageId="5" pageNumber="6">R. punctatus</emphasis>
(Greuter, 1917)
</taxonomicName>
is a species whose taxonomical position has been long debated: it was assigned to either
<taxonomicName id="4C5CC5FDFFABFFFFF262301781EE99CB" box="[564,740,890,915]" family="Chaetonotidae" genus="Aspidiophorus" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF262301781EE99CB" box="[564,740,890,915]" italics="true" pageId="5" pageNumber="6">Aspidiophorus</emphasis>
</taxonomicName>
or
<taxonomicName id="4C5CC5FDFFABFFFFF35B301780C699CB" box="[781,972,890,915]" family="Chaetonotidae" genus="Lepidodermella" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF35B301780C699CB" box="[781,972,890,915]" italics="true" pageId="5" pageNumber="6">Lepidodermella</emphasis>
</taxonomicName>
and it was finally place into the latter genus due to the presence of unpedunculated, smooth scales, even if provided with a very short spiny extension (Balsamo 1983).
<taxonomicName id="4C5CC5FDFFABFFFFF1B830A5802199B9" box="[494,811,968,993]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="murrayi">
<emphasis id="B928626CFFABFFFFF1B830A5802199B9" box="[494,811,968,993]" italics="true" pageId="5" pageNumber="6">Rhomballichthys murrayi</emphasis>
</taxonomicName>
is a new name introduced by Schwank (1990) for
<taxonomicName id="4C5CC5FDFFABFFFFF0C1308282219E50" box="[151,299,1007,1032]" family="Chaetonotidae" genus="Chaetonotus" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF0C1308282219E50" box="[151,299,1007,1032]" italics="true" pageId="5" pageNumber="6">Chaetonotus</emphasis>
</taxonomicName>
sp. Murray, 1913: the original description of this species is quite incomplete and does not allow to define with certainty its morphological characters, so that it is a
<emphasis id="B928626CFFABFFFFF47F3778862F9E76" box="[1065,1317,1045,1070]" italics="true" pageId="5" pageNumber="6">species inquirenda</emphasis>
. Finally,
<taxonomicName id="4C5CC5FDFFABFFFFF0C13751810B9E0D" box="[151,513,1084,1109]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="carinatus">
<emphasis id="B928626CFFABFFFFF0C13751810B9E0D" box="[151,513,1084,1109]" italics="true" pageId="5" pageNumber="6">Rhomballichthys carinatus</emphasis>
</taxonomicName>
is a new name introduced by Schwank (1990) for the specimens of
<taxonomicName id="4C5CC5FDFFABFFFFF0C1370E81839E24" authority="Remane, 1936" authorityName="Remane" authorityYear="1936" box="[151,649,1122,1148]" family="Chaetonotidae" genus="Heterolepidoderma" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="fallax">
<emphasis id="B928626CFFABFFFFF0C1370E82DA9E24" box="[151,464,1123,1148]" italics="true" pageId="5" pageNumber="6">Heterolepidoderma fallax</emphasis>
Remane, 1936
</taxonomicName>
reported by Roszczak (1969) from
<collectingCountry id="F34BFEEEFFABFFFFF46B370F879F9E24" box="[1085,1173,1122,1148]" name="Poland" pageId="5" pageNumber="6">Poland</collectingCountry>
. Schwank considered these ones as belonging to a different species from
<taxonomicName id="4C5CC5FDFFABFFFFF2A537E487DC9EFB" authority="Remane, 1936" authorityName="Remane" authorityYear="1936" box="[755,1238,1161,1187]" family="Chaetonotidae" genus="Heterolepidoderma" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="fallax">
<emphasis id="B928626CFFABFFFFF2A537E487289EFA" box="[755,1058,1161,1186]" italics="true" pageId="5" pageNumber="6">Heterolepidoderma fallax</emphasis>
Remane, 1936
</taxonomicName>
, that he includes among the
<emphasis id="B928626CFFABFFFFF14B37DD811F9E91" box="[285,533,1200,1225]" italics="true" pageId="5" pageNumber="6">species inquirendae.</emphasis>
The assignment of the Polish specimens to a new species should require a careful revision of the distinctive characters:
<taxonomicName id="4C5CC5FDFFABFFFFF29A37BA87139EA8" box="[716,1049,1239,1264]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="carinatus">
<emphasis id="B928626CFFABFFFFF29A37BA87139EA8" box="[716,1049,1239,1264]" italics="true" pageId="5" pageNumber="6">Rhomballichthys carinatus</emphasis>
</taxonomicName>
is considered here as a
<emphasis id="B928626CFFABFFFFF51537BA822E9F4E" italics="true" pageId="5" pageNumber="6">species inquirenda.</emphasis>
The genus
<taxonomicName id="4C5CC5FDFFABFFFFF1E53790818A9F4E" box="[435,640,1277,1302]" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="genus">
<emphasis id="B928626CFFABFFFFF1E53790818A9F4E" box="[435,640,1277,1302]" italics="true" pageId="5" pageNumber="6">Rhomballichthys</emphasis>
</taxonomicName>
is maintained as a monotypic genus only including
<taxonomicName id="4C5CC5FDFFABFFFFF5553790825A9F66" authority="Greuter, 1917" authorityName="Greuter" authorityYear="1917" family="Chaetonotidae" genus="Rhomballichthys" kingdom="Animalia" order="Chaetonotida" pageId="5" pageNumber="6" phylum="Gastrotricha" rank="species" species="punctatus">
<emphasis id="B928626CFFABFFFFF555379086969F4E" box="[1283,1436,1277,1302]" italics="true" pageId="5" pageNumber="6">R. punctatus</emphasis>
(Greuter, 1917)
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
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