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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.827.31365" ID-GBIF-Dataset="85f74389-c078-44de-b0bd-8b7e4c3b9404" ID-PMC="PMC6472301" ID-Pensoft-Pub="1313-2970-827-31" ID-PubMed="31114425" ID-ZBK="10B663895E424E5287D8F49E2405D651" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1313-2970-827-31" ModsDocOrigin="ZooKeys 827" ModsDocTitle="Mollusc species from the Pontocaspian region an expert opinion list" checkinTime="1551875342560" checkinUser="pensoft" docAuthor="Wesselingh, Frank, Poorten, Jan Johan ter, Kijashko, Pavel, Albrecht, Christian, Anistratenko, Olga Yu, Frolov, Pavel, Gándara, Alberto Martinez, Gittenberger, Arjan, Gogaladze, Aleksandre, Mikhail Karpinsky, Popa, Luis, Sands, Arthur F, Vandendorpe, Justine &amp; Wilke, Thomas" docDate="2019" docId="62DD080E5F88CD46DA53BFCEFAED20F2" docLanguage="en" docName="ZooKeys 827: 31-124" docOrigin="ZooKeys 827" docSource="http://dx.doi.org/10.3897/zookeys.827.31365" docTitle="Clessiniola variabilis" docType="treatment" docVersion="5" lastPageNumber="74" masterDocId="FFA2FA62FFEC4705FFBBFB79FFAAFFFE" masterDocTitle="Mollusc species from the Pontocaspian region - an expert opinion list" masterLastPageNumber="124" masterPageNumber="31" pageNumber="73" updateTime="1668166983143" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Mollusc species from the Pontocaspian region - an expert opinion list</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wesselingh, Frank</mods:namePart>
<mods:affiliation>Naturalis Biodiversity Center, Leiden, Netherlands</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Poorten, Jan Johan ter</mods:namePart>
<mods:affiliation>Field Museum of Natural History, Chicago, United States of America</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kijashko, Pavel</mods:namePart>
<mods:affiliation>Moscow State University, Moscow, Russia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Albrecht, Christian</mods:namePart>
<mods:affiliation>Justus Liebig University, Giessen, Germany</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Anistratenko, Olga Yu</mods:namePart>
<mods:affiliation>Schmalhausen Instite of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine &amp; Institute of Geological Sciences, National Academy of Sciences of Ukraine, KievUkraine</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Frolov, Pavel</mods:namePart>
<mods:affiliation>Saint-Petersburg State University, Saint Petersburg, Russia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gándara, Alberto Martinez</mods:namePart>
<mods:affiliation>Grigore Artipa National Museum of Natural History, Bucharest, Romania</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gittenberger, Arjan</mods:namePart>
<mods:affiliation>Gittenberger Marine Research, Inventory &amp; Strategy, Leiden, Netherlands</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gogaladze, Aleksandre</mods:namePart>
<mods:affiliation>Naturalis Biodiversity Center, Leiden, Netherlands</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Mikhail Karpinsky</mods:namePart>
<mods:affiliation>Russian Federal Research Institute of Fisheries and Oceanography, Moscow, Russia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Popa, Luis</mods:namePart>
<mods:affiliation>Grigore Antirpa National Museum of Natural History, Bucharest, Romania</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Sands, Arthur F</mods:namePart>
<mods:affiliation>Justus Liebig University, Giessen, Germany</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Vandendorpe, Justine</mods:namePart>
<mods:affiliation>Justus Liebig University, Giessen, Germany</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wilke, Thomas</mods:namePart>
<mods:affiliation>Justus Liebig University Giessen Germany</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2019</mods:date>
<mods:detail type="volume">
<mods:number>827</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>31</mods:start>
<mods:end>124</mods:end>
</mods:extent>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.827.31365</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.827.31365</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-827-31</mods:identifier>
<mods:identifier type="ZBK">10B663895E424E5287D8F49E2405D651</mods:identifier>
<mods:identifier type="ZooBank">10B663895E424E5287D8F49E2405D651</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="183410471" LSID="urn:lsid:plazi:treatment:62DD080E5F88CD46DA53BFCEFAED20F2" httpUri="http://treatment.plazi.org/id/62DD080E5F88CD46DA53BFCEFAED20F2" lastPageNumber="74" pageNumber="73">
<subSubSection type="nomenclature">
<paragraph pageId="42" pageNumber="73">
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Clessiniola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clessiniola variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Clessiniola variabilis</taxonomicName>
(Eichwald, 1838)
</paragraph>
</subSubSection>
<subSubSection type="reference_group">
<paragraph pageId="42" pageNumber="73">
*1838
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Paludina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paludina variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Paludina variabilis</taxonomicName>
Eichwald: 151-152.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1838
<taxonomicName class="Gastropoda" family="Amphimelaniidae" genus="Paludina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paludina" pageId="42" pageNumber="73" phylum="Mollusca" rank="genus">Paludina</taxonomicName>
Triton Eichwald: 152.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1874
<taxonomicName class="Gastropoda" family="Bithyniidae" genus="Bithynia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Bithynia" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="genus">Bithynia</taxonomicName>
?
<taxonomicName genus="Eichwaldi" lsidName="Eichwaldi" pageId="42" pageNumber="73" rank="genus">Eichwaldi</taxonomicName>
Martens: 81.
</paragraph>
<paragraph pageId="42" pageNumber="73">
?1887
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Caspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caspia" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="genus">Caspia</taxonomicName>
<taxonomicName genus="Grimmi" lsidName="Grimmi" pageId="42" pageNumber="73" rank="genus">Grimmi</taxonomicName>
Clessin and Dybowski in Dybowski: 39
</paragraph>
<paragraph pageId="42" pageNumber="73">
?1888 [
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Caspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Caspia" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="genus">Caspia</taxonomicName>
]
<taxonomicName genus="Grimmi" lsidName="Grimmi" pageId="42" pageNumber="73" rank="genus">Grimmi</taxonomicName>
n. sp. - Dybowski: 79, pl. 3, fig. 5a, b.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1887
<taxonomicName class="Gastropoda" family="Odontostomidae" genus="Clessinia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clessinia" order="Stylommatophora" pageId="42" pageNumber="73" phylum="Mollusca" rank="genus">Clessinia</taxonomicName>
Martensii Clessin and Dybowski in Dybowski: 43.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1888
<taxonomicName class="Gastropoda" family="Odontostomidae" genus="Clessinia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clessinia" order="Stylommatophora" pageId="42" pageNumber="73" phylum="Mollusca" rank="genus">Clessinia</taxonomicName>
Martensii n. sp. - Dybowski: 79, pl. 2, fig. 5.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1902a
<taxonomicName class="Gastropoda" family="Odontostomidae" genus="Clessinia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clessinia ahngeri" order="Stylommatophora" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="ahngeri">Clessinia ahngeri</taxonomicName>
Westerlund: 45-46.
</paragraph>
<paragraph pageId="42" pageNumber="73">1966 P.[yrgula] (Clessiniola) pseudotriton Golikov and Starobogatov: 356-357, fig. 2(3</paragraph>
<paragraph pageId="42" pageNumber="73">
?1969
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Pyrgula" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pyrgula (Caspiella) derbentina" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="derbentina" subGenus="Caspiella">Pyrgula (Caspiella) derbentina</taxonomicName>
Logvinenko and Starobogatov: 374, fig. 366(8).
</paragraph>
<paragraph pageId="42" pageNumber="73">
1969
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Pyrgula" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pyrgula (Caspiella) ovum" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="ovum" subGenus="Caspiella">Pyrgula (Caspiella) ovum</taxonomicName>
Logvinenko and Starobogatov: 374, fig. 366(9).
</paragraph>
<paragraph pageId="42" pageNumber="73">
1969
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Pyrgula" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pyrgula (Caspiella) trivialis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="trivialis" subGenus="Caspiella">Pyrgula (Caspiella) trivialis</taxonomicName>
Logvinenko and Starobogatov: 374-375, fig. 366(10).
</paragraph>
<paragraph pageId="42" pageNumber="73">
1987
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia (Clessiniola) variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis" subGenus="Clessiniola">Turricaspia (Clessiniola) variabilis</taxonomicName>
(Eichwald, 1838). - Alexenko and Starobogatov: 34, text fig. 5.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1987
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia (Clessiniola) triton" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="triton" subGenus="Clessiniola">Turricaspia (Clessiniola) triton</taxonomicName>
(Eichwald, 1838). - Alexenko and Starobogatov: 34, text fig. 3.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1987
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia (Clessiniola) martensii" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="martensii" subGenus="Clessiniola">Turricaspia (Clessiniola) martensii</taxonomicName>
(Clessin &amp; Dybowski in Dybowski, 1888). - Alexenko and Starobogatov: 34, text fig. 4.
</paragraph>
<paragraph pageId="42" pageNumber="73">
1987
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia (Clessiniola) bogensis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="bogensis" subGenus="Clessiniola">Turricaspia (Clessiniola) bogensis</taxonomicName>
(
<normalizedToken originalValue="Küster">Kuester</normalizedToken>
, 1852). - Alexenko and Starobogatov: 34.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2006
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Turricaspia variabilis</taxonomicName>
(Eichwald, 1838). - Kantor and Sysoev: 111, pl. 49, fig. J.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2011
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia martensii" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="martensii">Turricaspia martensii</taxonomicName>
(Clessin &amp; W. Dybowski in W. Dybowski, 1888). - Anistratenko et al.: 86, fig. 3(17).
</paragraph>
<paragraph pageId="42" pageNumber="73">
2011
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia triton" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="triton">Turricaspia triton</taxonomicName>
(Eichwald, 1838). - Anistratenko et al.: 85-86, fig. 3(16).
</paragraph>
<paragraph pageId="42" pageNumber="73">
2011
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Turricaspia variabilis</taxonomicName>
(Eichwald, 1838). - Anistratenko et al.: 85, fig. 3(15).
</paragraph>
<paragraph pageId="42" pageNumber="73">
2014
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Turricaspia variabilis</taxonomicName>
. - Taviani et al.: 4, fig. 3b.
</paragraph>
<paragraph pageId="42" pageNumber="73">
?2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia derbentina" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="derbentina">Turricaspia derbentina</taxonomicName>
(Logvinenko &amp; Starobogatov, 1968). - Vinarski and Kantor: 247.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia martensii" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="martensii">Turricaspia martensii</taxonomicName>
(Clessin &amp; W. Dybowski in W. Dybowski, 1888). - Vinarski and Kantor: 248.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia ovum" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="ovum">Turricaspia ovum</taxonomicName>
(Logvinenko &amp; Starobogatov, 1968). - Vinarski and Kantor: 248-249.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia pseudotriton" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="pseudotriton">Turricaspia pseudotriton</taxonomicName>
(Golikov &amp; Starobogatov, 1966). - Vinarski and Kantor: 249.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia triton" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="triton">Turricaspia triton</taxonomicName>
(Eichwald, 1838). - Vinarski and Kantor: 250.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia trivialis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="trivialis">Turricaspia trivialis</taxonomicName>
(Logvinenko &amp; Starobogatov, 1968). - Vinarski and Kantor: 250-251.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2016
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Turricaspia variabilis</taxonomicName>
(Eichwald, 1838).- Vinarski and Kantor: 251.
</paragraph>
<paragraph pageId="42" pageNumber="73">
2018
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Clessiniola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clessiniola variabilis" order="Littorinimorpha" pageId="42" pageNumber="73" phylum="Mollusca" rank="species" species="variabilis">Clessiniola variabilis</taxonomicName>
(Eichwald, 1838). - Neubauer et al.: 60-63, fig. 7
<normalizedToken originalValue="AI">A-I</normalizedToken>
.
</paragraph>
</subSubSection>
<subSubSection type="discussion">
<paragraph pageId="43" pageNumber="74">
<pageBreakToken pageId="43" pageNumber="74" start="start">Status</pageBreakToken>
. Accepted Pontocaspian species.
</paragraph>
</subSubSection>
<subSubSection type="distribution">
<paragraph pageId="43" pageNumber="74">Type locality. At the Volga River mouth near Astrakhan, and towards the Caspian Sea; also in recently lithified fossil limestone at the shores of Dagestan, Russia.</paragraph>
<paragraph pageId="43" pageNumber="74">
Distribution. Caspian Sea, Azov Sea, and northern Black Sea region. This species was mentioned in the South Caspian Basin of Azerbaijan (
<bibRefCitation author="Mirzoev, GS" journalOrPublisher="International Journal of Zoological Studies" pageId="79" pageNumber="110" pagination="43 - 48" title="Zoobenthos distribution patterns in the deepwater horizon of Azerbaijan sector of the Caspian Sea." url="http://www.zoologyjournals.com/download/74/1-7-29-696.pdf" volume="2" year="2017">Mirzoev and Alekperov 2017</bibRefCitation>
, who reported the species as
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia variabilis" order="Littorinimorpha" pageId="43" pageNumber="74" phylum="Mollusca" rank="species" species="variabilis">Turricaspia variabilis</taxonomicName>
,
<taxonomicName lsidName="T. derbentica" pageId="43" pageNumber="74" rank="species" species="derbentica">T. derbentica</taxonomicName>
, and
<taxonomicName lsidName="T. trivialis" pageId="43" pageNumber="74" rank="species" species="trivialis">T. trivialis</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection type="discussion">
<paragraph pageId="43" pageNumber="74">
Taxonomic notes.
<bibRefCitation author="Neubauer, TA" journalOrPublisher="ZooKeys" pageId="80" pageNumber="111" pagination="43 - 103" title="A late Pleistocene gastropod fauna from the northern Caspian Sea with implications for Pontocaspian gastropod taxonomy." url="https://doi.org/10.3897/zookeys.770.25365" volume="770" year="2018">Neubauer et al. (2018)</bibRefCitation>
recently demonstrated the high variability of this species. Comparison of available illustrations and descriptions of the species listed in the synonymy list indicates that all of them range within this
<normalizedToken originalValue="species">species'</normalizedToken>
variability. Consequently, we consider all of them as junior synonyms of
<taxonomicName lsidName="C. variabilis" pageId="43" pageNumber="74" rank="species" species="variabilis">C. variabilis</taxonomicName>
. A more in-depth review of the type material of the species involved is required to confirm this approach.
</paragraph>
<paragraph pageId="43" pageNumber="74">
The status of
<taxonomicName class="Gastropoda" family="Amphimelaniidae" genus="Paludina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paludina bogensis" pageId="43" pageNumber="74" phylum="Mollusca" rank="species" species="bogensis">Paludina bogensis</taxonomicName>
Dubois in
<normalizedToken originalValue="Küster">Kuester</normalizedToken>
, 1852, which was listed as a valid species of
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Turricaspia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Turricaspia" order="Littorinimorpha" pageId="43" pageNumber="74" phylum="Mollusca" rank="genus">Turricaspia</taxonomicName>
by
<bibRefCitation author="Anistratenko, VV" journalOrPublisher="Naukova dumka, Kiev" pageId="72" pageNumber="103" title="Fauna Ukraine. Vol. 29: Mollusca. Fasc. 1. B. 2: Orders Littoriniformes, Rissoiformes." year="1995">Anistratenko and Stadnichenko (1995)</bibRefCitation>
, is still unclear. That species was described from the Zapadnyi Bug River in Poland and closely resembles
<taxonomicName lsidName="C. variabilis" pageId="43" pageNumber="74" rank="species" species="variabilis">C. variabilis</taxonomicName>
. It is, however, unlikely that a Pontocaspian species typical of oligohaline conditions occurs so far away in a pure freshwater environment. &quot;
<taxonomicName class="Gastropoda" family="Amphimelaniidae" genus="Paludina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paludina eichwaldi" pageId="43" pageNumber="74" phylum="Mollusca" rank="species" species="eichwaldi">Paludina eichwaldi</taxonomicName>
Krynicki, 1837&quot; found in the literature is a nomen nudum.
<bibRefCitation author="Martens, Ev" journalOrPublisher="Supplement" pageId="78" pageNumber="109" pagination="1 - 127" title="Ueber vorderasiatische Conchylien nach den Sammlungen des Prof. Hausknecht. Novitates conchologicae." url="https://biodiversitylibrary.org/page/12980992" volume="5" year="1874">Martens (1874)</bibRefCitation>
provided measurements and made the name available, but he listed
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Paludina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paludina variabilis" order="Littorinimorpha" pageId="43" pageNumber="74" phylum="Mollusca" rank="species" species="variabilis">Paludina variabilis</taxonomicName>
Eichwald, 1838 in synonymy, which has priority. Dybowski (1887) obviously overlooked this and considered
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Nematurella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nematurella eichwaldi" order="Littorinimorpha" pageId="43" pageNumber="74" phylum="Mollusca" rank="species" species="eichwaldi">Nematurella eichwaldi</taxonomicName>
Krynicki a valid species. We follow
<bibRefCitation author="Vinarski, MV" journalOrPublisher="Severtsov Institute of Ecology and Evolution of RAS, Moscow" pageId="86" pageNumber="117" title="Analytical catalogue of fresh and brackish water molluscs of Russia and adjacent countries. A. N." year="2016">Vinarski and Kantor (2016)</bibRefCitation>
and consider the species as a junior synonym of
<taxonomicName class="Gastropoda" family="Hydrobiidae" genus="Clessiniola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Clessiniola variabilis" order="Littorinimorpha" pageId="43" pageNumber="74" phylum="Mollusca" rank="species" species="variabilis">Clessiniola variabilis</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection type="conservation">
<paragraph pageId="43" pageNumber="74">
Conservation status. Least Concern (
<bibRefCitation author="Cioboiu, O" journalOrPublisher="Bollettino della Societa Malacologica Italiana" pageId="73" pageNumber="104" url="https://doi.org/10.2305/IUCN.UK.2011-2.RLTS.T155608A4807675.en" year="2011">Cioboiu et al. 2011</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>