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<mods:title id="AD6ADAC1B96A4EDA8DF8237588C7582A">Phylogeny, taxonomy, and biogeography of the Sphaeriinae (Bivalvia: Sphaeriidae)</mods:title>
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Genus
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Scopoli, 1777
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<paragraph id="8BCE36A11831FFFC3D55F948A7931ECA" blockId="11.[115,140,1787,1973]" box="[115,140,1787,1973]" pageId="11" pageNumber="316">Continued. 1 Table</paragraph>
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species:
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<emphasis id="B905EAB31831FFFC3E8DF8B8A32C1E5D" box="[939,1075,1803,1827]" italics="true" pageId="11" pageNumber="316">Tellina cornea</emphasis>
Linnaeus, 1758
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.
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<emphasis id="B905EAB31831FFFC3E0CF8F6A4901E23" box="[810,911,1861,1884]" italics="true" pageId="11" pageNumber="316">Diagnosis:</emphasis>
Shell large-sized (shell length in adults varies between 6 and
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), rounded to ovate in shape, typically thick walled (
<figureCitation id="134A2A241831FFFC38ABF8D0A45A1EE5" captionStart="Figure 5" captionStartId="15.[114,179,1076,1100]" captionTargetBox="[115,1458,144,1048]" captionTargetId="figure-413@15.[114,1458,144,1048]" captionTargetPageId="15" captionText="Figure 5. Representatives of valid genera in the subfamily Sphaeriinae:(A) Euglesa casertana, Russia, Yamalo-Nenets Autonomus Okrug, Gydan Peninsula; (B) Hindupisidium nevillianum (Myanmar, Inle Lake); (C) Conventus conventus, Russia (Arkhangelsk Region, Novaya Zemlya); (D) Pisidium amnicum (Russia, Nenets Autonomus Okrug, Vashutkiny Lakes); (E) Sphaerium corneum (Russia, Arkhangelsk Region, Bolshoy Solovetsky Island); (F) Sphaerium lacustre (Russia, Irkutsk Region, Angara River). Photos:O.V.Aksenova. Scale bar: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220098" httpUri="https://zenodo.org/record/13220098/files/figure.png" pageId="11" pageNumber="316">Fig. 5E</figureCitation>
). The beaks rounded and slightly prominent or narrow, pore density varies among species (
<figureCitation id="134A2A241831FFFC3945F811A3B41EC5" box="[1123,1195,1954,1978]" captionStart="Figure 5" captionStartId="15.[114,179,1076,1100]" captionTargetBox="[115,1458,144,1048]" captionTargetId="figure-413@15.[114,1458,144,1048]" captionTargetPageId="15" captionText="Figure 5. Representatives of valid genera in the subfamily Sphaeriinae:(A) Euglesa casertana, Russia, Yamalo-Nenets Autonomus Okrug, Gydan Peninsula; (B) Hindupisidium nevillianum (Myanmar, Inle Lake); (C) Conventus conventus, Russia (Arkhangelsk Region, Novaya Zemlya); (D) Pisidium amnicum (Russia, Nenets Autonomus Okrug, Vashutkiny Lakes); (E) Sphaerium corneum (Russia, Arkhangelsk Region, Bolshoy Solovetsky Island); (F) Sphaerium lacustre (Russia, Irkutsk Region, Angara River). Photos:O.V.Aksenova. Scale bar: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220098" httpUri="https://zenodo.org/record/13220098/files/figure.png" pageId="11" pageNumber="316">Fig. 5E</figureCitation>
,
<figureCitation id="134A2A241831FFFC399EF811A3CC1EC5" box="[1208,1235,1954,1978]" captionStart="Figure 6" captionStartId="16.[129,194,1363,1387]" captionTargetBox="[129,1473,146,1335]" captionTargetId="figure-227@16.[129,1473,145,1335]" captionTargetPageId="16" captionText="Figure 6. Teeth morphology and shell pores of representatives of the genera in the subfamily Sphaeriinae: (A) Euglesa casertana (Russia, Yamalo-Nenets Autonomus Okrug, Yamal Peninsula); (B) Hindupisidium nevillianum (Myanmar, Inle Lake); (C) Conventus conventus (Russia, Arkhangelsk Region, Novaya Zemlya); (D) Pisidium amnicum (Russia, Nenets Autonomus Okrug, Vashutkiny Lakes); (E) Sphaerium corneum (Russia, Arkhangelsk Region, Bolshoy Solovetsky Island).Photos: O.V. Aksenova.Scale bars: teeth—0.5 mm; pores—20 µm. The left-hand, central column—right and left valves, respectively; the right-hand column—pores." figureDoi="http://doi.org/10.5281/zenodo.13220100" httpUri="https://zenodo.org/record/13220100/files/figure.png" pageId="11" pageNumber="316">6E</figureCitation>
). Cardinal and lateral
</paragraph>
<caption id="DF0E66291836FFFB3DA7F89FA3711E02" ID-DOI="http://doi.org/10.5281/zenodo.13220084" ID-Zenodo-Dep="13220084" httpUri="https://zenodo.org/record/13220084/files/figure.png" pageId="12" pageNumber="317" startId="12.[129,194,1836,1860]" targetBox="[422,1181,141,1805]" targetPageId="12" targetType="figure">
<paragraph id="8BCE36A11836FFFB3DA7F89FA3711E02" blockId="12.[129,1423,1836,1917]" pageId="12" pageNumber="317">
<emphasis id="B905EAB31836FFFB3DA7F89FA7C71E3B" bold="true" box="[129,216,1836,1860]" pageId="12" pageNumber="317">Figure 2.</emphasis>
The phylogeny of the subfamily
<taxonomicName id="4C714D221836FFFB3F2CF89EA5661E3A" authorityName="Deshayes" authorityYear="1855" box="[522,633,1837,1861]" class="Bivalvia" family="Sphaeriidae" kingdom="Animalia" order="Sphaeriida" pageId="12" pageNumber="317" phylum="Mollusca" rank="subFamily" subFamily="Sphaeriinae">Sphaeriinae</taxonomicName>
recovered from ML analysis (W-IQ-TREE) and obtained for the complete dataset of mitochondrial and nuclear sequences (16S rRNA+28S rRNA). Black numbers near nodes are bootstrap support values (BS)/ Bayesian posterior probabilities (BPP). The new taxa are highlighted in red. Subgenera are marked by curly brackets.
</paragraph>
</caption>
<paragraph id="8BCE36A11837FFFA3D57FFF9A64A1920" blockId="13.[113,341,74,96]" box="[113,341,74,96]" pageId="13" pageNumber="318">
<emphasis id="B905EAB31837FFFA3D57FFF9A7A8191F" bold="true" box="[113,183,74,96]" pageId="13" pageNumber="318">318 •</emphasis>
Bespalaya
<emphasis id="B905EAB31837FFFA3C0AFFF8A64A1920" box="[300,341,74,96]" italics="true" pageId="13" pageNumber="318">et al.</emphasis>
</paragraph>
<caption id="DF0E66291837FFFA3D57FA44A32C1F55" ID-DOI="http://doi.org/10.5281/zenodo.13220090" ID-Zenodo-Dep="13220090" httpUri="https://zenodo.org/record/13220090/files/figure.png" pageId="13" pageNumber="318" startId="13.[113,178,1527,1551]" targetBox="[114,1458,144,1499]" targetPageId="13" targetType="figure">
<paragraph id="8BCE36A11837FFFA3D57FA44A32C1F55" blockId="13.[113,1437,1527,1579]" pageId="13" pageNumber="318">
<emphasis id="B905EAB31837FFFA3D57FA44A7D61F70" bold="true" box="[113,201,1527,1551]" pageId="13" pageNumber="318">Figure 3.</emphasis>
Maps of approximate geographic distribution of six genera of the
<taxonomicName id="4C714D221837FFFA3E14FA44A4BE1F70" authorityName="Deshayes" authorityYear="1855" box="[818,929,1527,1551]" class="Bivalvia" family="Sphaeriidae" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="subFamily" subFamily="Sphaeriinae">Sphaeriinae</taxonomicName>
in the world based on available 16S rRNA sequences: (A)
<taxonomicName id="4C714D221837FFFA3DBCF9A0A7E21F54" authorityName="Scopoli" authorityYear="1777" box="[154,253,1555,1579]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="genus">
<emphasis id="B905EAB31837FFFA3DBCF9A0A7E21F54" box="[154,253,1555,1579]" italics="true" pageId="13" pageNumber="318">Sphaerium</emphasis>
</taxonomicName>
; (B)
<taxonomicName id="4C714D221837FFFA3C08F9A0A66D1F54" authorityName="Jenyns" authorityYear="1832" box="[302,370,1555,1579]" class="Bivalvia" family="Sphaeriidae" genus="Euglesa" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="genus">
<emphasis id="B905EAB31837FFFA3C08F9A0A66D1F54" box="[302,370,1555,1579]" italics="true" pageId="13" pageNumber="318">Euglesa</emphasis>
</taxonomicName>
; (C)
<emphasis id="B905EAB31837FFFA3C81F9A0A50A1F54" box="[423,533,1555,1579]" italics="true" pageId="13" pageNumber="318">
<taxonomicName id="4C714D221837FFFA3C81F9A0A6E81F54" authorityName="C. Pfeifffer" authorityYear="1821" box="[423,503,1555,1579]" class="Bivalvia" family="Sphaeriidae" genus="Pisidium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="genus" sensu="stricto">Pisidium</taxonomicName>
<taxonomicNameLabel id="A23657C81837FFFA3CDAF9A7A50A1F54" box="[508,533,1556,1579]" pageId="13" pageNumber="318" sensu="stricto">s.s.</taxonomicNameLabel>
</emphasis>
; (D)
<emphasis id="B905EAB31837FFFA3F6CF9A0A5FB1F54" box="[586,740,1555,1579]" italics="true" pageId="13" pageNumber="318">Odhneripisiduim</emphasis>
; (E)
<taxonomicName id="4C714D221837FFFA3E30F9A0A4811F54" box="[790,926,1555,1579]" class="Bivalvia" family="Sphaeriidae" genus="Hindupisidium" higherTaxonomySource="CoL" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="genus">
<emphasis id="B905EAB31837FFFA3E30F9A0A4811F54" box="[790,926,1555,1579]" italics="true" pageId="13" pageNumber="318">Hindupisidium</emphasis>
</taxonomicName>
; (F)
<taxonomicName id="4C714D221837FFFA3EF6F9A0A3311F55" authorityName="Pirogov &amp; Starobogatov" authorityYear="1974" baseAuthorityName="Clessin" baseAuthorityYear="1877" box="[976,1070,1555,1578]" class="Bivalvia" family="Sphaeriidae" genus="Conventus" higherTaxonomySource="CoL" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="genus">
<emphasis id="B905EAB31837FFFA3EF6F9A0A3311F55" box="[976,1070,1555,1578]" italics="true" pageId="13" pageNumber="318">Conventus</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="8BCE36A11837FFFA3D57F9DEA5931FBB" blockId="13.[113,763,1645,1732]" pageId="13" pageNumber="318">
teeth well developed (
<figureCitation id="134A2A241837FFFA3C74F9DEA6871FFA" box="[338,408,1645,1669]" captionStart="Figure 6" captionStartId="16.[129,194,1363,1387]" captionTargetBox="[129,1473,146,1335]" captionTargetId="figure-227@16.[129,1473,145,1335]" captionTargetPageId="16" captionText="Figure 6. Teeth morphology and shell pores of representatives of the genera in the subfamily Sphaeriinae: (A) Euglesa casertana (Russia, Yamalo-Nenets Autonomus Okrug, Yamal Peninsula); (B) Hindupisidium nevillianum (Myanmar, Inle Lake); (C) Conventus conventus (Russia, Arkhangelsk Region, Novaya Zemlya); (D) Pisidium amnicum (Russia, Nenets Autonomus Okrug, Vashutkiny Lakes); (E) Sphaerium corneum (Russia, Arkhangelsk Region, Bolshoy Solovetsky Island).Photos: O.V. Aksenova.Scale bars: teeth—0.5 mm; pores—20 µm. The left-hand, central column—right and left valves, respectively; the right-hand column—pores." figureDoi="http://doi.org/10.5281/zenodo.13220100" httpUri="https://zenodo.org/record/13220100/files/figure.png" pageId="13" pageNumber="318">Fig. 6E</figureCitation>
). Nephridia moderately elongated. Two siphons (exhalant and inhalant) are present (
<figureCitation id="134A2A241837FFFA3F52F93EA5A31FDB" box="[628,700,1677,1701]" captionStart="Figure 7" captionStartId="17.[113,178,771,795]" captionTargetBox="[114,1458,143,743]" captionTargetId="figure-55@17.[114,1458,143,743]" captionTargetPageId="17" captionText="Figure 7. Anatomy of siphons and gills of representatives of the genera in the subfamily Sphaeriinae: (A) Euglesa casertana (Russia, Vaigach Island); (B) siphon of Hindupisidium nevillianum (Myanmar, Inle Lake); (C) siphon of Conventus conventus (Russia, Arkhangelsk Region, Novaya Zemlya); (D) siphon of Pisidium amnicum (Russia, Tyumen Region); (E) siphon of Sphaerium corneum (Russia, Arkhangelsk Region, Bolshoy Solovetsky Island); (F) siphon of Sphaerium lacustre (Russia, Irkutsk Region, Angara River); (G) gill with embryos of E. casertana (Russia, Vaigach Island); (H) gills with embryos of P.amnicum (Russia, Nenets Autonomus Okrug, Vashutkiny Lakes); (I) gills with embryos of S. lacustre (Russia, Irkutsk Region, Angara River). Photos:O.V.Aksenova. Scale bars: 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.13220104" httpUri="https://zenodo.org/record/13220104/files/figure.png" pageId="13" pageNumber="318">Fig. 7E</figureCitation>
). The outer and inner demibranch relatively well developed.
</paragraph>
<paragraph id="8BCE36A11837FFFA3D57F956A6531E43" blockId="13.[113,762,1765,1852]" pageId="13" pageNumber="318">
<emphasis id="B905EAB31837FFFA3D57F956A64D1F82" box="[113,338,1765,1789]" italics="true" pageId="13" pageNumber="318">Reproductive biology:</emphasis>
The species of the genus are asynchronous brooders (they incubate their progeny in several separate brood sacs).
</paragraph>
<paragraph id="8BCE36A11837FFFA3D57F8D0A4911FDA" blockId="13.[113,763,1891,1978]" lastBlockId="13.[810,1459,1645,1701]" pageId="13" pageNumber="318">
<emphasis id="B905EAB31837FFFA3D57F8D0A7F01E04" box="[113,239,1891,1915]" italics="true" pageId="13" pageNumber="318">Distribution:</emphasis>
Subglobal. This genus is known from Eurasia, Africa (
<taxonomicName id="4C714D221837FFFA3DECF830A6AD1EE4" authorityName="Martens" authorityYear="1897" box="[202,434,1923,1947]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="species" species="stuhlmanni">
<emphasis id="B905EAB31837FFFA3DECF830A6AD1EE4" box="[202,434,1923,1947]" italics="true" pageId="13" pageNumber="318">Sphaerium stuhlmanni</emphasis>
</taxonomicName>
), North and South America (
<taxonomicName id="4C714D221837FFFA3D5AF811A6421EC5" baseAuthorityName="d'Orbigny" baseAuthorityYear="1835" box="[124,349,1954,1978]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="species" species="argentinum">
<emphasis id="B905EAB31837FFFA3D5AF811A6421EC5" box="[124,349,1954,1978]" italics="true" pageId="13" pageNumber="318">Sphaerium argentinum</emphasis>
</taxonomicName>
), East Africa,
<collectingCountry id="F36676311837FFFA3CD5F810A5621EC5" box="[499,637,1954,1978]" name="New Zealand" pageId="13" pageNumber="318">New Zealand</collectingCountry>
(
<taxonomicName id="4C714D221837FFFA3FB6F811A4D51FFA" authorityName="Deshayes" authorityYear="1854" box="[656,970,1645,1978]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="species" species="novaezealandiae">
<emphasis id="B905EAB31837FFFA3FB6F811A4D51FFA" box="[656,970,1645,1978]" italics="true" pageId="13" pageNumber="318">Sphaerium novaezealandiae</emphasis>
</taxonomicName>
), and
<collectingCountry id="F36676311837FFFA3917F9DEA3931FFA" box="[1073,1164,1645,1669]" name="Australia" pageId="13" pageNumber="318">Australia</collectingCountry>
(
<taxonomicName id="4C714D221837FFFA3989F9DEA2B81FFA" baseAuthorityName="Tenison-Woods" baseAuthorityYear="1876" box="[1199,1447,1645,1669]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="species" species="tasmanicum">
<emphasis id="B905EAB31837FFFA3989F9DEA2B81FFA" box="[1199,1447,1645,1669]" italics="true" pageId="13" pageNumber="318">Sphaerium tasmanicum</emphasis>
</taxonomicName>
) (
<figureCitation id="134A2A241837FFFA3E13F93EA4611FDA" box="[821,894,1677,1701]" captionStart="Figure 3" captionStartId="13.[113,178,1527,1551]" captionTargetBox="[114,1458,144,1499]" captionTargetId="figure-136@13.[114,1458,144,1499]" captionTargetPageId="13" captionText="Figure 3. Maps of approximate geographic distribution of six genera of the Sphaeriinae in the world based on available 16S rRNA sequences: (A) Sphaerium; (B) Euglesa; (C) Pisidium s.s.; (D) Odhneripisiduim; (E) Hindupisidium; (F) Conventus." figureDoi="http://doi.org/10.5281/zenodo.13220090" httpUri="https://zenodo.org/record/13220090/files/figure.png" pageId="13" pageNumber="318">Fig. 3A</figureCitation>
).
</paragraph>
<paragraph id="8BCE36A11837FFFA3E51F977A2791FA1" blockId="13.[810,1382,1732,1795]" box="[887,1382,1732,1759]" pageId="13" pageNumber="318">
<emphasis id="B905EAB31837FFFA3E51F977A2791FA1" bold="true" box="[887,1382,1732,1759]" pageId="13" pageNumber="318">
<taxonomicName id="4C714D221837FFFA3E51F977A3931FA1" authority="Clessin" authorityName="Clessin" box="[887,1164,1732,1759]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31837FFFA3E51F977A3261FA0" bold="true" box="[887,1081,1732,1759]" italics="true" pageId="13" pageNumber="318">Sphaerium nitidum</emphasis>
Clessin
</taxonomicName>
in Westerlund, 1876
</emphasis>
</paragraph>
<paragraph id="8BCE36A11837FFFA3E0CF958A4671E7C" blockId="13.[810,1382,1732,1795]" box="[810,888,1771,1795]" pageId="13" pageNumber="318">
(
<figureCitation id="134A2A241837FFFA3E13F958A4721E7C" box="[821,877,1771,1795]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="13" pageNumber="318">Fig. 8</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C36B652A1837FFFA3E0CF897A21D1E43" box="[810,1282,1828,1852]" pageId="13" pageNumber="318" type="reference_group">
<paragraph id="8BCE36A11837FFFA3E0CF897A21D1E43" blockId="13.[810,1282,1828,1852]" box="[810,1282,1828,1852]" pageId="13" pageNumber="318">
<taxonomicName id="4C714D221837FFFA3E0CF897A3E11E43" ID-CoL="4YPLC" authority="Westerlund, 1876: 97 - 104" authorityName="Westerlund" authorityPageNumber="97 - 104" authorityYear="1876" box="[810,1278,1828,1852]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="13" pageNumber="318" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31837FFFA3E0CF897A4F81E43" box="[810,999,1828,1852]" italics="true" pageId="13" pageNumber="318">Sphaerium nitidum</emphasis>
Westerlund, 1876: 97104
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C36B652A1837FFF83E0CF8EDA4931F88" lastPageId="15" lastPageNumber="320" pageId="13" pageNumber="318" type="materials_examined">
<paragraph id="8BCE36A11837FFFA3E0CF8EDA2AC1ECB" blockId="13.[810,1459,1885,1972]" pageId="13" pageNumber="318">
<emphasis id="B905EAB31837FFFA3E0CF8EDA4B91E0A" box="[810,934,1886,1909]" italics="true" pageId="13" pageNumber="318">Type series:</emphasis>
<materialsCitation id="3B193CFC1837FFFA3E90F8EEA2AC1ECB" country="Sweden" location="National Museum of Natural History" pageId="13" pageNumber="318" specimenCount="8" stateProvince="Stockholm" typeStatus="lectotype">
The
<typeStatus id="54CA88031837FFFA3EC9F8EEA3501E0A" box="[1007,1103,1885,1909]" pageId="13" pageNumber="318" type="lectotype">lectotype</typeStatus>
[pair of valves, designated by Starobogatov in 1968] and
<specimenCount id="9D77FD281837FFFA396BF8CEA2011EEA" box="[1101,1310,1917,1941]" count="8" pageId="13" pageNumber="318" type="generic" typeStatus="paralectotype">eight paralectotypes</specimenCount>
are deposited in
<location id="8EAE607A1837FFFA3E6FF82FA3C91ECB" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1837FFFA3E6FF82FA3C91ECB" box="[841,1238,1948,1972]" country="Sweden" name="National Museum of Natural History" pageId="13" pageNumber="318" stateProvince="Stockholm">National Museum of Natural History</location>
,
<collectingRegion id="49B5F8431837FFFA39C2F82FA24A1ECB" box="[1252,1365,1948,1972]" country="Sweden" name="Stockholm" pageId="13" pageNumber="318">Stockholm</collectingRegion>
,
<collectingCountry id="F36676311837FFFA3845F82FA2AC1ECB" box="[1379,1459,1948,1972]" name="Sweden" pageId="13" pageNumber="318">Sweden</collectingCountry>
</materialsCitation>
</paragraph>
<caption id="DF0E66291834FFF93DA7F992A5661F9E" ID-DOI="http://doi.org/10.5281/zenodo.13220094" ID-Zenodo-Dep="13220094" httpUri="https://zenodo.org/record/13220094/files/figure.png" pageId="14" pageNumber="319" startId="14.[129,194,1569,1593]" targetBox="[132,1471,147,1538]" targetPageId="14" targetType="figure">
<paragraph id="8BCE36A11834FFF93DA7F992A5661F9E" blockId="14.[129,1450,1569,1761]" pageId="14" pageNumber="319">
<emphasis id="B905EAB31834FFF93DA7F992A7C71F46" bold="true" box="[129,216,1569,1593]" pageId="14" pageNumber="319">Figure 4.</emphasis>
Fossil-calibrated phylogeny of the
<taxonomicName id="4C714D221834FFF93F02F992A58C1F46" authorityName="Deshayes" authorityYear="1855" box="[548,659,1569,1593]" class="Bivalvia" family="Sphaeriidae" kingdom="Animalia" order="Sphaeriida" pageId="14" pageNumber="319" phylum="Mollusca" rank="subFamily" subFamily="Sphaeriinae">Sphaeriinae</taxonomicName>
calculated under a lognormal relaxed clock model and a Yule process speciation implemented in BEAST 1.10.4 and obtained for the complete dataset of mitochondrial and nuclear sequences (16S rRNA+28S rRNA). Bars indicate 95% HPD of the estimated divergence times between lineages (Mya). Red numbers above the nodes are mean ages (Mya). Black numbers under the nodes are Bayesian posterior probabilities (BPP). Stratigraphic chart according to the International Commission on Stratigraphy (2022) (URL: http://www.stratigraphy.org/ICSchart/ChronostratChart2022-02.pdf). The node pies indicate ancestral area reconstructions of the
<taxonomicName id="4C714D221834FFF93C73F91EA6DB1FBA" authorityName="Deshayes" authorityYear="1855" box="[341,452,1709,1733]" class="Bivalvia" family="Sphaeriidae" kingdom="Animalia" order="Sphaeriida" pageId="14" pageNumber="319" phylum="Mollusca" rank="subFamily" subFamily="Sphaeriinae">Sphaeriinae</taxonomicName>
clades (probability of each area combination) in accordance with the generalized biogeographic model (combination of the S-DIVA+DEC+S-DEC models).
</paragraph>
</caption>
<paragraph id="8BCE36A11834FFF93DA7F8A2A6221E37" blockId="14.[129,777,1809,1864]" pageId="14" pageNumber="319">
(
<collectionCode id="ED60AE641834FFF93DAEF8A2A7C41E56" box="[136,219,1809,1833]" country="Sweden" httpUri="http://grbio.org/cool/8z6v-f8is" name="Department of Paleozoology, Swedish Museum of Natural History" pageId="14" pageNumber="319">SMNH</collectionCode>
) nos 47254728 (see
<figureCitation id="134A2A241834FFF93CE7F8A2A5131E56" box="[449,524,1809,1833]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="14" pageNumber="319">Fig. 8A</figureCitation>
). The
<typeStatus id="54CA88031834FFF93F76F8A2A5AF1E56" box="[592,688,1809,1833]" pageId="14" pageNumber="319" type="lectotype">lectotype</typeStatus>
was collected in Dudinka.
</paragraph>
<paragraph id="8BCE36A11834FFF93DA7F8DDA5781EBC" blockId="14.[129,777,1901,1988]" pageId="14" pageNumber="319">
<materialsCitation id="3B193CFC1834FFF93DA7F8DDA57B1EBC" country="Russia" county="Territory" location="Dudinka" municipality="Yenisei River" pageId="14" pageNumber="319" specimenCount="1" stateProvince="Krasnoyarsk" typeStatus="holotype">
<emphasis id="B905EAB31834FFF93DA7F8DDA6181EFA" box="[129,263,1901,1925]" italics="true" pageId="14" pageNumber="319">
<typeStatus id="54CA88031834FFF93DA7F8DDA7AE1EFA" box="[129,177,1902,1925]" pageId="14" pageNumber="319">Type</typeStatus>
locality:
</emphasis>
<collectingCountry id="F36676311834FFF93C37F8DEA6491EFA" box="[273,342,1901,1925]" name="Russia" pageId="14" pageNumber="319">Russia</collectingCountry>
,
<collectingRegion id="49B5F8431834FFF93C45F8DEA6FD1EFA" box="[355,482,1901,1925]" country="Russia" name="Krasnoyarsk" pageId="14" pageNumber="319">Krasnoyarsk</collectingRegion>
<collectingCounty id="62AF4E2D1834FFF93CCAF8DEA5561EFA" box="[492,585,1901,1925]" pageId="14" pageNumber="319">Territory</collectingCounty>
, the
<collectingMunicipality id="6BAAACDB1834FFF93FA7F8DEA4161EFA" box="[641,777,1901,1925]" pageId="14" pageNumber="319">Yenisei River</collectingMunicipality>
near
<location id="8EAE607A1834FFF93D90F83FA60F1EDB" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1834FFF93D90F83FA60F1EDB" box="[182,272,1932,1956]" country="Russia" county="Territory" municipality="Yenisei River" name="Dudinka" pageId="14" pageNumber="319" stateProvince="Krasnoyarsk">Dudinka</location>
(Jenissei, Dudino … (lat. 69°15
<emphasis id="B905EAB31834FFF93F55F838A5661EDB" box="[627,633,1931,1956]" italics="true" pageId="14" pageNumber="319">ʹ</emphasis>
) … norr om Lusino … (lat. 68°40
<emphasis id="B905EAB31834FFF93C7FF819A6401EBC" box="[345,351,1962,1987]" italics="true" pageId="14" pageNumber="319">ʹ</emphasis>
); Westerlund, 1877: 67)
</materialsCitation>
.
</paragraph>
<paragraph id="8BCE36A11834FFF83E1FF8A2A6A91CDB" blockId="14.[825,1475,1809,1990]" lastBlockId="15.[113,763,1232,1444]" lastPageId="15" lastPageNumber="320" pageId="14" pageNumber="319">
<emphasis id="B905EAB31834FFF93E1FF8A2A4E31E56" box="[825,1020,1809,1833]" italics="true" pageId="14" pageNumber="319">Material examined:</emphasis>
<materialsCitation id="3B193CFC1834FFF83929F8A2A6AC1CDB" collectingDate="2010-08" collectingDateMax="2019-07" collectingDateMin="2010-08" collectionCode="RMBH" country="Russia" county="Vaygach Island" lastPageId="15" lastPageNumber="320" location="Aksenova" municipality="Talatinskoe Lake" pageId="14" pageNumber="319" specimenCount="188" stateProvince="Krasnoyarsk">
<collectingCountry id="F36676311834FFF93929F8A2A3491E56" box="[1039,1110,1809,1833]" name="Russia" pageId="14" pageNumber="319">Russia</collectingCountry>
:
<collectingCounty id="62AF4E2D1834FFF93944F8A2A3E01E56" box="[1122,1279,1809,1833]" pageId="14" pageNumber="319">Vaygach Island</collectingCounty>
,
<collectingMunicipality id="6BAAACDB1834FFF9382BF8A2A2A11E56" box="[1293,1470,1809,1833]" pageId="14" pageNumber="319">Talatinskoe Lake</collectingMunicipality>
,
<date id="FFCF10611834FFF93E1FF883A4BF1E37" box="[825,928,1840,1864]" pageId="14" pageNumber="319" value="2010-08">
<collectingDate id="EF8BE9891834FFF93E1FF883A4BF1E37" box="[825,928,1840,1864]" pageId="14" pageNumber="319" value="2010-08">VIII.2010</collectingDate>
</date>
,
<location id="8EAE607A1834FFF93E89F883A30A1E37" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1834FFF93E89F883A30A1E37" box="[943,1045,1840,1864]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="Aksenova" pageId="14" pageNumber="319" stateProvince="Krasnoyarsk">Aksenova</location>
,
<collectorName id="268453771834FFF93902F883A3971E37" box="[1060,1160,1840,1864]" pageId="14" pageNumber="319">Bespalaya</collectorName>
leg.,
<specimenCount id="9D77FD281834FFF939E1F883A27E1E37" box="[1223,1377,1840,1864]" count="5" pageId="14" pageNumber="319" type="generic">five specimens</specimenCount>
(lot nos INEP-615, INEP-619);
<location id="8EAE607A1834FFF9391EF8FCA3FB1E18" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1834FFF9391EF8FCA3FB1E18" box="[1080,1252,1871,1895]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="Yamal Peninsula" pageId="14" pageNumber="319" stateProvince="Krasnoyarsk">Yamal Peninsula</location>
,
<location id="8EAE607A1834FFF939D4F8FCA2A11E18" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1834FFF939D4F8FCA2A11E18" box="[1266,1470,1871,1895]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="Seyaha River Basin" pageId="14" pageNumber="319" stateProvince="Krasnoyarsk">
<location id="8EAE607A1834FFF939D4F8FCA2651E18" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1834FFF939D4F8FCA2651E18" box="[1266,1402,1871,1895]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="Seyaha River" pageId="14" pageNumber="319" stateProvince="Krasnoyarsk">
Seyaha
<location id="8EAE607A1834FFF93865F8FCA2651E18" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1834FFF93865F8FCA2651E18" box="[1347,1402,1871,1895]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="River Basin" pageId="14" pageNumber="319" stateProvince="Krasnoyarsk">River</location>
</location>
Basin
</location>
,
<date id="FFCF10611834FFF93E1FF8DCA4BF1EF8" box="[825,928,1903,1927]" pageId="14" pageNumber="319" value="2014-08">
<collectingDate id="EF8BE9891834FFF93E1FF8DCA4BF1EF8" box="[825,928,1903,1927]" pageId="14" pageNumber="319" value="2014-08">VIII.2014</collectingDate>
</date>
,
<collectorName id="268453771834FFF93E8BF8DCA4F11EF8" box="[941,1006,1903,1927]" pageId="14" pageNumber="319">Zubrii</collectorName>
leg.,
<specimenCount id="9D77FD281834FFF93901F8DCA3DE1EF8" box="[1063,1217,1903,1927]" count="151" pageId="14" pageNumber="319" type="generic">151 specimens</specimenCount>
(lot nos
<collectionCode id="ED60AE641834FFF93800F8DCA26C1EF9" box="[1318,1395,1903,1926]" pageId="14" pageNumber="319">RMBH</collectionCode>
MSph-0011, MSph-0014, MSph-0015); Gydan Peninsula
<date id="FFCF10611834FFF93846F83DA2A11ED9" box="[1376,1470,1934,1958]" pageId="14" pageNumber="319" value="2017-07">
<collectingDate id="EF8BE9891834FFF93846F83DA2A11ED9" box="[1376,1470,1934,1958]" pageId="14" pageNumber="319" value="2017-07">VII.2017</collectingDate>
</date>
,
<collectorName id="268453771834FFF93E1FF81EA4881EBA" box="[825,919,1965,1989]" pageId="14" pageNumber="319">Sokolova</collectorName>
&amp;
<collectorName id="268453771834FFF93EE6F81EA3231EBA" box="[960,1084,1965,1989]" pageId="14" pageNumber="319">Shevchenko</collectorName>
leg.,
<specimenCount id="9D77FD281834FFF9395CF81DA2151EBA" box="[1146,1290,1965,1990]" count="23" pageId="14" pageNumber="319" type="generic">23 specimens</specimenCount>
(lot nos
<collectionCode id="ED60AE641834FFF93850F81DA2DC1EBA" box="[1398,1475,1966,1989]" pageId="14" pageNumber="319">RMBH</collectionCode>
MSph 372), Yugorsky Peninsula
<date id="FFCF10611835FFF83C9FFB63A5001D97" box="[441,543,1232,1256]" pageId="15" pageNumber="320" value="2015-08">
<collectingDate id="EF8BE9891835FFF83C9FFB63A5001D97" box="[441,543,1232,1256]" pageId="15" pageNumber="320" value="2015-08">VIII.2015</collectingDate>
</date>
,
<collectorName id="268453771835FFF83F0EFB63A56B1D97" box="[552,628,1232,1256]" pageId="15" pageNumber="320">Spitsyn</collectorName>
leg.,
<specimenCount id="9D77FD281835FFF83F83FB62A7A51C77" count="2" pageId="15" pageNumber="320" type="generic">two specimens</specimenCount>
(lot nos
<collectionCode id="ED60AE641835FFF83C32FB43A67E1C78" box="[276,353,1264,1287]" pageId="15" pageNumber="320">RMBH</collectionCode>
MSph-0087, MSph-0037), Krasnoyarsk Region, Taymyr Peninsula,
<location id="8EAE607A1835FFF83CAFFABCA53F1C58" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1835FFF83CAFFABCA53F1C58" box="[393,544,1295,1319]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="Dudinka River" pageId="15" pageNumber="320" stateProvince="Krasnoyarsk">Dudinka River</location>
,
<date id="FFCF10611835FFF83F0FFABCA5971C58" box="[553,648,1295,1319]" pageId="15" pageNumber="320" value="2018-07">
<collectingDate id="EF8BE9891835FFF83F0FFABCA5971C58" box="[553,648,1295,1319]" pageId="15" pageNumber="320" value="2018-07">VII.2018</collectingDate>
</date>
, Aksenova, Sokolova, Shevchenko,
<collectorName id="268453771835FFF83C4CFA9DA6A81C39" box="[362,439,1326,1350]" pageId="15" pageNumber="320">Travina</collectorName>
leg.,
<specimenCount id="9D77FD281835FFF83CD3FA9DA5801C39" box="[501,671,1326,1350]" count="3" pageId="15" pageNumber="320" type="generic">three specimens</specimenCount>
(lot no.
<collectionCode id="ED60AE641835FFF83D57FAFDA7A11C1A" box="[113,190,1358,1381]" pageId="15" pageNumber="320">RMBH</collectionCode>
MSph-0415), Chukotka Peninsula,
<location id="8EAE607A1835FFF83F6AFAFDA5E51C19" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1835FFF83F6AFAFDA5E51C19" box="[588,762,1358,1382]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="Amguema River" pageId="15" pageNumber="320" stateProvince="Krasnoyarsk">
Amguema
<location id="8EAE607A1835FFF83FE5FAFDA5E51C19" LSID="urn:lsid:plazi:treatment:03D887B71831FFF83EE1F979A4931F88:8EAE607A1835FFF83FE5FAFDA5E51C19" box="[707,762,1358,1382]" country="Russia" county="Vaygach Island" municipality="Talatinskoe Lake" name="River Basin" pageId="15" pageNumber="320" stateProvince="Krasnoyarsk">River</location>
</location>
Basin,
<date id="FFCF10611835FFF83D93FADEA60C1CFA" box="[181,275,1389,1413]" pageId="15" pageNumber="320" value="2019-07">
<collectingDate id="EF8BE9891835FFF83D93FADEA60C1CFA" box="[181,275,1389,1413]" pageId="15" pageNumber="320" value="2019-07">VII.2019</collectingDate>
</date>
,
<collectorName id="268453771835FFF83C3BFADEA69E1CFA" box="[285,385,1389,1413]" pageId="15" pageNumber="320">Aksenova</collectorName>
leg.,
<specimenCount id="9D77FD281835FFF83C93FADEA54E1CFA" box="[437,593,1389,1413]" count="4" pageId="15" pageNumber="320" type="generic">four specimens</specimenCount>
(lot nos
<collectionCode id="ED60AE641835FFF83F88FADEA5E41CFB" box="[686,763,1389,1412]" pageId="15" pageNumber="320">RMBH</collectionCode>
MSph-0494/2, MSph-0497/1)
</materialsCitation>
.
</paragraph>
<caption id="DF0E66291835FFF83D54FB87A2551DDF" ID-DOI="http://doi.org/10.5281/zenodo.13220098" ID-Zenodo-Dep="13220098" httpUri="https://zenodo.org/record/13220098/files/figure.png" pageId="15" pageNumber="320" startId="15.[114,179,1076,1100]" targetBox="[115,1458,144,1048]" targetPageId="15" targetType="figure">
<paragraph id="8BCE36A11835FFF83D54FB87A2551DDF" blockId="15.[113,1457,1076,1185]" pageId="15" pageNumber="320">
<emphasis id="B905EAB31835FFF83D54FB87A7D51D32" bold="true" box="[114,202,1076,1101]" pageId="15" pageNumber="320">Figure 5.</emphasis>
Representatives of valid genera in the subfamily
<taxonomicName id="4C714D221835FFF83FBEFB87A4141D33" authorityName="Deshayes" authorityYear="1855" box="[664,779,1076,1100]" class="Bivalvia" family="Sphaeriidae" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="subFamily" subFamily="Sphaeriinae">Sphaeriinae</taxonomicName>
: (A)
<taxonomicName id="4C714D221835FFF83E1DFB87A4C51D33" baseAuthorityName="Poli" baseAuthorityYear="1791" box="[827,986,1076,1100]" class="Bivalvia" family="Sphaeriidae" genus="Euglesa" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="casertana">
<emphasis id="B905EAB31835FFF83E1DFB87A4C51D33" box="[827,986,1076,1100]" italics="true" pageId="15" pageNumber="320">Euglesa casertana</emphasis>
</taxonomicName>
, Russia, Yamalo-Nenets Autonomus Okrug, Gydan Peninsula; (B)
<taxonomicName id="4C714D221835FFF83C65FBE3A5251D17" baseAuthorityName="Theobald" baseAuthorityYear="1876" box="[323,570,1104,1128]" class="Bivalvia" family="Sphaeriidae" genus="Hindupisidium" higherTaxonomySource="CoL" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="nevillianum">
<emphasis id="B905EAB31835FFF83C65FBE3A5251D17" box="[323,570,1104,1128]" italics="true" pageId="15" pageNumber="320">Hindupisidium nevillianum</emphasis>
</taxonomicName>
(Myanmar, Inle Lake); (C)
<taxonomicName id="4C714D221835FFF83E62FBE2A4E11D17" baseAuthorityName="Clessin" baseAuthorityYear="1877" box="[836,1022,1105,1128]" class="Bivalvia" family="Sphaeriidae" genus="Conventus" higherTaxonomySource="CoL" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="conventus">
<emphasis id="B905EAB31835FFF83E62FBE2A4E11D17" box="[836,1022,1105,1128]" italics="true" pageId="15" pageNumber="320">Conventus conventus</emphasis>
</taxonomicName>
, Russia (Arkhangelsk Region, Novaya Zemlya); (D)
<taxonomicName id="4C714D221835FFF83DDFFBDFA6BE1DFB" baseAuthorityName="Muller" baseAuthorityYear="1774" box="[249,417,1132,1156]" class="Bivalvia" family="Sphaeriidae" genus="Pisidium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="amnicum">
<emphasis id="B905EAB31835FFF83DDFFBDFA6BE1DFB" box="[249,417,1132,1156]" italics="true" pageId="15" pageNumber="320">Pisidium amnicum</emphasis>
</taxonomicName>
(Russia, Nenets Autonomus Okrug, Vashutkiny Lakes); (E)
<taxonomicName id="4C714D221835FFF83EC6FBDFA38B1DFB" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[992,1172,1132,1156]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="corneum">
<emphasis id="B905EAB31835FFF83EC6FBDFA38B1DFB" box="[992,1172,1132,1156]" italics="true" pageId="15" pageNumber="320">Sphaerium corneum</emphasis>
</taxonomicName>
(Russia, Arkhangelsk Region, Bolshoy Solovetsky Island); (F)
<taxonomicName id="4C714D221835FFF83C85FB3BA5501DDF" baseAuthorityName="Muller" baseAuthorityYear="1774" box="[419,591,1160,1184]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="lacustre">
<emphasis id="B905EAB31835FFF83C85FB3BA5501DDF" box="[419,591,1160,1184]" italics="true" pageId="15" pageNumber="320">Sphaerium lacustre</emphasis>
</taxonomicName>
(Russia, Irkutsk Region, Angara River). Photos: O.V. Aksenova. Scale bar: 1 mm.
</paragraph>
</caption>
<paragraph id="8BCE36A11835FFF83D57FA7FA50A1E62" blockId="15.[113,763,1484,1821]" pageId="15" pageNumber="320">
<emphasis id="B905EAB31835FFF83D57FA7FA7F71C9C" box="[113,232,1484,1507]" italics="true" pageId="15" pageNumber="320">Description:</emphasis>
Shell medium sized (mean length ± SD 3.9 ±
<quantity id="4C899B441835FFF83FFDFA7FA7831F7D" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="15" pageNumber="320" unit="mm" value="1.1">1.1 mm</quantity>
, minmax
<quantity id="4C899B441835FFF83C28FA58A6931F7D" box="[270,396,1515,1539]" metricMagnitude="-3" metricUnit="m" metricValue="4.2" metricValueMax="6.5" metricValueMin="1.9" pageId="15" pageNumber="320" unit="mm" value="4.2" valueMax="6.5" valueMin="1.9">1.96.5 mm</quantity>
,
<emphasis id="B905EAB31835FFF83CB0FA5FA6B61F7C" box="[406,425,1516,1539]" italics="true" pageId="15" pageNumber="320">N</emphasis>
= 151), rectangular, with a characteristic concentric sculpture around the beaks (
<figureCitation id="134A2A241835FFF83F5BF9B9A5F61F5D" box="[637,745,1546,1570]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="15" pageNumber="320">Fig. 8AC</figureCitation>
). The beaks are rounded and slightly prominent. The cardinal tooth of the right valve is slightly curved, and the weaker split on the posterior end has divergent branches. The inner cardinal tooth of the left valve is thin, curved, and slightly S shaped (
<figureCitation id="134A2A241835FFF83FF2F934A78F1FC0" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="15" pageNumber="320">Fig. 8C</figureCitation>
). The outer cardinal tooth of the left valve is thin, slightly curved, and shorter than the inner cardinal tooth (
<figureCitation id="134A2A241835FFF83F55F975A5A21FA1" box="[627,701,1734,1758]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="15" pageNumber="320">Fig. 8C</figureCitation>
). The inner side of the valves is characterized by a high pore density. The nephridia are elongated (
<figureCitation id="134A2A241835FFF83CBBF8B6A51A1E63" box="[413,517,1797,1821]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="15" pageNumber="320">Fig. 8C, D</figureCitation>
).
</paragraph>
<paragraph id="8BCE36A11835FFF83D57F8F7A5E41EC5" blockId="15.[113,763,1860,1978]" pageId="15" pageNumber="320">
<emphasis id="B905EAB31835FFF83D57F8F7A7F01E23" box="[113,239,1860,1884]" italics="true" pageId="15" pageNumber="320">Distribution:</emphasis>
Kolguev Island, Vaygach Island, Yamal Peninsula, Gydan Peninsula, Yugorsky Peninsula, the Lower Yenisei Basin, Taymyr Peninsula,
<collectingRegion id="49B5F8431835FFF83C10F830A6831EE4" box="[310,412,1923,1947]" country="Russia" name="Chukotka" pageId="15" pageNumber="320">Chukotka</collectingRegion>
Peninsula. According to some authors,
<taxonomicName id="4C714D221835FFF83D95F811A6061EC5" authorityName="Westerlund" authorityYear="1876" box="[179,281,1954,1978]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31835FFF83D95F811A6061EC5" box="[179,281,1954,1978]" italics="true" pageId="15" pageNumber="320">S. nitidum</emphasis>
</taxonomicName>
was recorded in North America (
<bibRefCitation id="EFE04B501835FFF83F5FF811A5E41EC5" author="Mackie GL &amp; White DS &amp; Zdeba TW" box="[633,763,1954,1978]" pageId="15" pageNumber="320" refId="ref28165" refString="Mackie GL, White DS, Zdeba TW. A Guide to the Freshwater Mollusks of the Laurentian Great Lakes with Special Emphasis on the Genus Pisidium. Duluth: EPA- 600 / 3 - 89 - 068, US Environmental Protection Agency, 1980." type="book" year="1980">
Mackie
<emphasis id="B905EAB31835FFF83FEDF810A5E41EC5" box="[715,763,1954,1978]" italics="true" pageId="15" pageNumber="320">et al.</emphasis>
</bibRefCitation>
</paragraph>
<paragraph id="8BCE36A11835FFF83E0CFB63A4D61C78" blockId="15.[810,1459,1232,1287]" pageId="15" pageNumber="320">
1980,
<bibRefCitation id="EFE04B501835FFF83E4CFB63A4EF1D97" author="Mackie GL" box="[874,1008,1232,1256]" pageId="15" pageNumber="320" pagination="1 - 432" refId="ref28211" refString="Mackie GL. Biology of freshwater corbiculid and sphaeriid clams of North America. Ohio Biological Survey Bulletin New Series 2007; 15: 1 - 432." type="journal article" year="2007">Mackie 2007</bibRefCitation>
). However, their records are not confirmed by genetic data.
</paragraph>
<paragraph id="8BCE36A11835FFF83E0CFA9AA4931F88" blockId="15.[810,1460,1321,1783]" pageId="15" pageNumber="320">
<emphasis id="B905EAB31835FFF83E0CFA9AA4851C3F" box="[810,922,1321,1344]" italics="true" pageId="15" pageNumber="320">Comments:</emphasis>
The systematic position of
<taxonomicName id="4C714D221835FFF8399DFA9AA23D1C3E" authorityName="Westerlund" authorityYear="1876" box="[1211,1314,1321,1345]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31835FFF8399DFA9AA23D1C3E" box="[1211,1314,1321,1345]" italics="true" pageId="15" pageNumber="320">S. nitidum</emphasis>
</taxonomicName>
has remained controversial to date (
<bibRefCitation id="EFE04B501835FFF8392DFAFBA3A51C1F" author="Korniushin AV" box="[1035,1210,1352,1376]" pageId="15" pageNumber="320" pagination="77 - 122" refId="ref27622" refString="Korniushin AV. Taxonomic revision of the genus Sphaerium sensu lato (Bivalvia Sphaeriidae) in the Palaearctic Region, with some notes on the North American species. Archiv fur Molluskenkunde 2001; 129: 77 - 122." type="journal article" year="2001">Korniushin 2001</bibRefCitation>
,
<bibRefCitation id="EFE04B501835FFF839E3FAFBA2BD1C1F" author="Bespalaya Y &amp; Bolotov I &amp; Aksenova O" box="[1221,1442,1352,1376]" pageId="15" pageNumber="320" pagination="1545 - 51" refId="ref25043" refString="Bespalaya Y, Bolotov I, Aksenova O et al. Occurrence of a Sphaerium species (Bivalvia: Sphaeriidae) of Nearctic origin in European Arctic Russia (Vaigach Island) indicates an ancient exchange between freshwater faunas across the Arctic. Polar Biology 2015 a; 38: 1545 - 51. Available at: https: // doi. org / https: // doi. org / 10.1007 / s 0030 0 - 015 - 1656 - 5" type="journal article" year="2015">
Bespalaya
<emphasis id="B905EAB31835FFF83816FAFAA2401C1F" box="[1328,1375,1352,1376]" italics="true" pageId="15" pageNumber="320">et al.</emphasis>
2015a
</bibRefCitation>
). The specimens studied by us correspond to the morphological and anatomical diagnosis given in the original description of
<taxonomicName id="4C714D221835FFF83887FA34A4681CC1" authorityName="Westerlund" authorityYear="1876" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31835FFF83887FA34A4681CC1" italics="true" pageId="15" pageNumber="320">S. nitidum</emphasis>
</taxonomicName>
(
<figureCitation id="134A2A241835FFF83EACFA15A4C91CC1" box="[906,982,1446,1470]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="15" pageNumber="320">Fig. 8A</figureCitation>
; Westerlund 1876) and the re-description of this species published by
<bibRefCitation id="EFE04B501835FFF8390DFA76A3D31CA1" author="Odhner NHJ" box="[1067,1228,1477,1502]" pageId="15" pageNumber="320" pagination="218 - 23" refId="ref28784" refString="Odhner NHJ. On some species of Pisidium in the Swedish State Museum. Journal of Conchology 1921; 16: 218 - 23." type="journal article" year="1921">Odhner (1921)</bibRefCitation>
(
<figureCitation id="134A2A241835FFF839FAFA76A2391CA1" box="[1244,1318,1477,1502]" captionStart="Figure 8" captionStartId="17.[113,178,1733,1757]" captionTargetBox="[115,1458,984,1705]" captionTargetId="figure-168@17.[114,1458,983,1705]" captionTargetPageId="17" captionText="Figure 8. (A) The lectotype of Sphaerium nitidum (Russia, Krasnoyarsk Region, Dudinka) (SMNH No.4726); (B) S.nitidum, shell [Russia, Saint Petersburg, Staraya Derevnya (Old Village)] (ZIN No. 23); (C) S. nitidum, shell, nephridia, and teeth morphology (Russia, Vaigach Island, Yangoto Lake); (D) Nephridia, dorsal view of S. corneum (left) and S.nitidum (right) by Odhner (1921). Photos: A. Persson (A), P.V. Kijashko (B) and O.V. Aksenova (C). Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.13220106" httpUri="https://zenodo.org/record/13220106/files/figure.png" pageId="15" pageNumber="320">Fig. 8D</figureCitation>
). In addition, we obtained molecular-genetic data on
<taxonomicName id="4C714D221835FFF83995FA56A2091C82" authorityName="Westerlund" authorityYear="1876" box="[1203,1302,1509,1533]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31835FFF83995FA56A2091C82" box="[1203,1302,1509,1533]" italics="true" pageId="15" pageNumber="320">S. nitidum</emphasis>
</taxonomicName>
from the Arctic region (
<bibRefCitation id="EFE04B501835FFF83E5DF9B7A34C1F63" author="Bespalaya Y &amp; Bolotov I &amp; Aksenova O" box="[891,1107,1540,1564]" pageId="15" pageNumber="320" pagination="1545 - 51" refId="ref25043" refString="Bespalaya Y, Bolotov I, Aksenova O et al. Occurrence of a Sphaerium species (Bivalvia: Sphaeriidae) of Nearctic origin in European Arctic Russia (Vaigach Island) indicates an ancient exchange between freshwater faunas across the Arctic. Polar Biology 2015 a; 38: 1545 - 51. Available at: https: // doi. org / https: // doi. org / 10.1007 / s 0030 0 - 015 - 1656 - 5" type="journal article" year="2015">
Bespalaya
<emphasis id="B905EAB31835FFF83EC5F9B6A30E1F63" box="[995,1041,1540,1564]" italics="true" pageId="15" pageNumber="320">et al.</emphasis>
2015a
</bibRefCitation>
,
<bibRefCitation id="EFE04B501835FFF8397BF9B7A38E1F63" author="Bespalaya YV &amp; Travina OV &amp; Tomilova AA" box="[1117,1169,1540,1564]" pageId="15" pageNumber="320" pagination="836 - 49" refId="ref25488" refString="Bespalaya YV, Travina OV, Tomilova AA et al. Species diversity, settlement routes, and ecology of freshwater mollusks of Kolguev Island (Barents Sea, Russia). Inland Water Biology 2022; 15: 836 - 49. https: // doi. org / 10.1134 / S 1995082922060025" type="journal article" year="2022">2022</bibRefCitation>
). The sequenced individuals from Vaygach, Yugorsky Peninsula, Yamal Peninsula, and Gydan Peninsula share the same 16S rRNA haplotype, which is identical to
<taxonomicName id="4C714D221835FFF83E52F9D1A4C71F05" authorityName="Westerlund" authorityYear="1876" box="[884,984,1634,1658]" class="Bivalvia" family="Sphaeriidae" genus="Sphaerium" kingdom="Animalia" order="Sphaeriida" pageId="15" pageNumber="320" phylum="Mollusca" rank="species" species="nitidum">
<emphasis id="B905EAB31835FFF83E52F9D1A4C71F05" box="[884,984,1634,1658]" italics="true" pageId="15" pageNumber="320">S. nitidum</emphasis>
</taxonomicName>
sequences from its
<typeStatus id="54CA88031835FFF839BBF9D0A3D41F04" box="[1181,1227,1635,1659]" pageId="15" pageNumber="320">type</typeStatus>
locality (Yenisei River, Dudinka Town,
<collectingRegion id="49B5F8431835FFF83EF5F932A3BA1FE6" box="[979,1189,1665,1689]" country="Russia" name="Krasnoyarsk" pageId="15" pageNumber="320">Krasnoyarsk Region</collectingRegion>
) (
<figureCitation id="134A2A241835FFF8399BF932A3E81FE6" box="[1213,1271,1665,1689]" captionStart="Figure 2" captionStartId="12.[129,194,1836,1860]" captionTargetBox="[422,1181,141,1805]" captionTargetId="figure-10@12.[419,1183,141,1805]" captionTargetPageId="12" captionText="Figure 2. The phylogeny of the subfamily Sphaeriinae recovered from ML analysis (W-IQ-TREE) and obtained for the complete dataset of mitochondrial and nuclear sequences (16S rRNA+28S rRNA). Black numbers near nodes are bootstrap support values (BS)/ Bayesian posterior probabilities (BPP). The new taxa are highlighted in red. Subgenera are marked by curly brackets." figureDoi="http://doi.org/10.5281/zenodo.13220084" httpUri="https://zenodo.org/record/13220084/files/figure.png" pageId="15" pageNumber="320">Fig. 2</figureCitation>
), and is separated by three nucleotide substitutions from haplotypes of this species from Chukchi Peninsula and Kolguev Island (
<bibRefCitation id="EFE04B501835FFF83810F973A4641F88" author="Bespalaya YV &amp; Travina OV &amp; Tomilova AA" pageId="15" pageNumber="320" pagination="836 - 49" refId="ref25488" refString="Bespalaya YV, Travina OV, Tomilova AA et al. Species diversity, settlement routes, and ecology of freshwater mollusks of Kolguev Island (Barents Sea, Russia). Inland Water Biology 2022; 15: 836 - 49. https: // doi. org / 10.1134 / S 1995082922060025" type="journal article" year="2022">
Bespalaya
<emphasis id="B905EAB31835FFF83884F972A4231F88" italics="true" pageId="15" pageNumber="320">et al</emphasis>
. 2022
</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>