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<document ID-DOI="10.11646/zootaxa.5249.2.4" ID-ISSN="1175-5326" ID-Zenodo-Dep="7687418" ID-ZooBank="81426096-9E0D-4E3D-9B1A-660B4D1BBB65" approvalRequired="9" approvalRequired_for_taxonomicNames="1" approvalRequired_for_textStreams="5" approvalRequired_for_treatments="3" checkinTime="1677656213532" checkinUser="plazi" docAuthor="Páll-Gergely, Barna" docDate="2023" docId="8B1E6842FF80733FFF34FD9BFD822660" docLanguage="en" docName="zootaxa.5249.2.4.pdf" docOrigin="Zootaxa 5249 (2)" docSource="http://dx.doi.org/10.11646/zootaxa.5249.2.4" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Pincerna yaanensis Z.-G. Chen 2022" docType="treatment" docVersion="2" lastPageNumber="274" masterDocId="7727103AFF95732AFFA3FFB9FFB2234B" masterDocTitle="Revision of the Alycaeidae of China, Laos and Vietnam (Gastropoda: Cyclophoroidea) II: The genera Alycaeus and Pincerna" masterLastPageNumber="276" masterPageNumber="253" pageNumber="274" updateTime="1677656825642" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title>Revision of the Alycaeidae of China, Laos and Vietnam (Gastropoda: Cyclophoroidea) II: The genera Alycaeus and Pincerna</mods:title>
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<mods:namePart>Páll-Gergely, Barna</mods:namePart>
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<mods:title>Zootaxa</mods:title>
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<mods:date>2023</mods:date>
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<mods:number>2023-03-01</mods:number>
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<mods:number>5249</mods:number>
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<mods:identifier type="ISSN">1175-5326</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.7687466" ID-Zenodo-Dep="7687466" LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660" httpUri="http://treatment.plazi.org/id/8B1E6842FF80733FFF34FD9BFD822660" lastPageNumber="274" pageId="21" pageNumber="274">
<subSubSection box="[151,606,546,572]" pageId="21" pageNumber="274" type="nomenclature">
<paragraph blockId="21.[151,606,546,609]" box="[151,606,546,572]" pageId="21" pageNumber="274">
<heading bold="true" box="[151,606,546,572]" fontSize="11" level="1" pageId="21" pageNumber="274" reason="1">
<emphasis bold="true" box="[151,606,546,572]" pageId="21" pageNumber="274">
<taxonomicName ID-CoL="9FZJK" authorityName="Z.-G. Chen" authorityYear="2022" box="[151,388,546,572]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis bold="true" box="[151,388,546,572]" italics="true" pageId="21" pageNumber="274">Pincerna yaanensis</emphasis>
</taxonomicName>
Z.-Y.
<bibRefCitation author="Chen, Z. - Y." box="[465,606,546,572]" pageId="21" pageNumber="274" pagination="117 - 120" refId="ref14220" refString="Chen, Z. - Y. (2022) A new species of Pincerna Preston, 1907 from China (Gastropoda: Caenogastropoda: Alycaeidae). Folia Malacologica, 30 (2), 117 - 120. https: // doi. org / 10.12657 / folmal. 030.015" type="journal article" year="2022">Chen, 2022</bibRefCitation>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection box="[151,283,582,609]" pageId="21" pageNumber="274" type="description">
<paragraph blockId="21.[151,606,546,609]" box="[151,283,582,609]" pageId="21" pageNumber="274">
(
<figureCitation box="[159,275,582,609]" captionStart="FIGURE 5" captionStartId="8.[152,255,1894,1918]" captionTargetBox="[198,1390,181,1871]" captionTargetId="figure-31@8.[198,1390,181,1871]" captionTargetPageId="8" captionText="FIGURE 5. Shells of Pincerna Preston, 1907 species.AE: Pincerna acroptychia n. sp. (holotype); FI: Pincerna maolanensis (Luo, Zhang &amp; Zhuo, 2009) (holotype); JM: Pincerna yaanensis Z.-G. Chen, 2022, holotype; NR: P. yaanensis, locality 2015/53, coll. HA. Photos: Kaibaryer Meng (FI), B. Páll-Gergely (AE, NR), photos from the original description (JM). White lines indicate length of suture." figureDoi="http://doi.org/10.5281/zenodo.7687428" httpUri="https://zenodo.org/record/7687428/files/figure.png" pageId="21" pageNumber="274">Figs 5JR</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection box="[151,589,651,675]" pageId="21" pageNumber="274" type="reference_group">
<paragraph blockId="21.[151,589,651,675]" box="[151,589,651,675]" pageId="21" pageNumber="274">
<treatmentCitationGroup box="[151,589,651,675]" pageId="21" pageNumber="274">
<taxonomicName ID-CoL="9FZJK" authorityName="Z.-G. Chen" authorityYear="2022" box="[151,350,651,674]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis box="[151,350,651,674]" italics="true" pageId="21" pageNumber="274">Pincerna yaanensis</emphasis>
</taxonomicName>
Z.-Y.
<treatmentCitation author="Chen, Z. - Y." box="[415,585,651,675]" page="118" pageId="21" pageNumber="274" year="2022">
<bibRefCitation author="Chen, Z. - Y." box="[415,585,651,675]" pageId="21" pageNumber="274" pagination="117 - 120" refId="ref14220" refString="Chen, Z. - Y. (2022) A new species of Pincerna Preston, 1907 from China (Gastropoda: Caenogastropoda: Alycaeidae). Folia Malacologica, 30 (2), 117 - 120. https: // doi. org / 10.12657 / folmal. 030.015" type="journal article" year="2022">Chen, 2022: 118</bibRefCitation>
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection pageId="21" pageNumber="274" type="materials_examined">
<paragraph blockId="21.[151,1437,721,1323]" pageId="21" pageNumber="274">
<materialsCitation collectionCode="AEIJ" country="China" county="Bffl" latitude="30.07389" location="Bifengxia" longLatPrecision="20" longitude="102.989716" municipality="Bdzm" pageId="21" pageNumber="274" specimenCount="1" stateProvince="Sichuan" typeStatus="holotype">
<emphasis bold="true" box="[151,310,721,747]" pageId="21" pageNumber="274">
<typeStatus box="[151,210,721,747]" pageId="21" pageNumber="274">Type</typeStatus>
locality.
</emphasis>
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFEEBFD68FE0B21A0" box="[328,441,721,747]" country="China" county="Bffl" latitude="30.07389" longLatPrecision="20" longitude="102.989716" municipality="Bdzm" name="Bifengxia" pageId="21" pageNumber="274" stateProvince="Sichuan">Bifengxia</location>
scenic spot [
<emphasis bold="true" box="[590,758,722,745]" pageId="21" pageNumber="274">
<collectionCode box="[590,658,722,745]" pageId="21" pageNumber="274">AEIJ</collectionCode>
ẈṃḆḢ
</emphasis>
],
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFCADFD68FC0E21A0" box="[782,956,721,747]" country="China" county="Bffl" latitude="30.07389" longLatPrecision="20" longitude="102.989716" municipality="Bdzm" name="Bifengxia town" pageId="21" pageNumber="274" stateProvince="Sichuan">Bifengxia town</location>
[
<emphasis bold="true" box="[973,1086,722,745]" pageId="21" pageNumber="274">
<collectionCode box="[973,1033,722,745]" pageId="21" pageNumber="274">AEIJ</collectionCode>
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFBA9FD6BFB8C21A2" box="[1034,1086,722,745]" country="China" county="Bffl" latitude="30.07389" longLatPrecision="20" longitude="102.989716" municipality="Bdzm" name="Wffi" pageId="21" pageNumber="274" stateProvince="Sichuan">Ẉffi</location>
</emphasis>
],
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFBF6FD68FB7721A0" box="[1109,1221,721,747]" country="China" county="Bffl" latitude="30.07389" longLatPrecision="20" longitude="102.989716" municipality="Bdzm" name="Yaan City" pageId="21" pageNumber="274" stateProvince="Sichuan">Yaan City</location>
[
<emphasis bold="true" box="[1238,1322,722,745]" pageId="21" pageNumber="274">
<collectingMunicipality box="[1238,1322,722,745]" pageId="21" pageNumber="274">Bdzm</collectingMunicipality>
</emphasis>
],
<collectingRegion country="China" name="Sichuan" pageId="21" pageNumber="274">Sichuan Province</collectingRegion>
[
<emphasis bold="true" box="[267,351,758,781]" pageId="21" pageNumber="274">
<collectingCounty box="[267,326,758,781]" pageId="21" pageNumber="274">Ɓffl</collectingCounty>
</emphasis>
],
<collectingCountry box="[374,444,757,783]" name="China" pageId="21" pageNumber="274">China</collectingCountry>
,
<geoCoordinate box="[455,602,758,785]" degrees="102" direction="east" minutes="59" orientation="longitude" pageId="21" pageNumber="274" precision="15" seconds="23" value="102.989716">102°5923″E</geoCoordinate>
,
<geoCoordinate box="[613,752,758,785]" degrees="30" direction="north" minutes="04" orientation="latitude" pageId="21" pageNumber="274" precision="15" seconds="26" value="30.07389">30°0426″N</geoCoordinate>
</materialsCitation>
.
</paragraph>
<paragraph blockId="21.[151,1437,721,1323]" pageId="21" pageNumber="274">
<emphasis bold="true" box="[199,588,793,819]" pageId="21" pageNumber="274">Additional material examined.</emphasis>
<materialsCitation collectingDate="2015-06-06" collectorName="Hunyadi, A." country="China" county="Chengdu Shi" elevation="200" latitude="30.905617" location="Qingcheng Shan" longLatPrecision="1" longitude="103.5547" municipality="Dujiangyan Shi" pageId="21" pageNumber="274" specimenCount="1" stateProvince="Sichuan">
<collectingCountry box="[606,698,793,819]" name="China" pageId="21" pageNumber="274">CHINA</collectingCountry>
,
<collectingRegion box="[720,813,793,819]" country="China" name="Sichuan" pageId="21" pageNumber="274">Sichuan</collectingRegion>
,
<collectingCounty box="[836,996,793,819]" pageId="21" pageNumber="274">Chengdu Shi</collectingCounty>
,
<collectingMunicipality box="[1019,1209,793,819]" pageId="21" pageNumber="274">Dujiangyan Shi</collectingMunicipality>
,
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFB73FCA0FA2A2078" box="[1232,1432,793,819]" country="China" county="Chengdu Shi" latitude="30.905617" longLatPrecision="1" longitude="103.5547" municipality="Dujiangyan Shi" name="Qingcheng Shan" pageId="21" pageNumber="274" stateProvince="Sichuan">Qingcheng Shan</location>
,
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFF34FC84FE83201C" box="[151,305,829,855]" country="China" county="Chengdu Shi" latitude="30.905617" longLatPrecision="1" longitude="103.5547" municipality="Dujiangyan Shi" name="Fangningqiao" pageId="21" pageNumber="274" stateProvince="Sichuan">Fangningqiao</location>
<quantity box="[314,387,829,855]" metricMagnitude="2" metricUnit="m" metricValue="2.0" pageId="21" pageNumber="274" unit="m" value="200.0">
<elevation box="[314,387,829,855]" metricMagnitude="2" metricUnit="m" metricValue="2.0" pageId="21" pageNumber="274" unit="m" value="200.0">200 m</elevation>
</quantity>
towards
<location LSID="urn:lsid:plazi:treatment:8B1E6842FF80733FFF34FD9BFD822660:06688F8FFF80733FFE4DFC84FDD3201C" box="[494,609,829,855]" country="China" county="Chengdu Shi" latitude="30.905617" longLatPrecision="1" longitude="103.5547" municipality="Dujiangyan Shi" name="Zushidian" pageId="21" pageNumber="274" stateProvince="Sichuan">Zushidian</location>
,
<elevation box="[622,770,829,855]" metricMagnitude="3" metricUnit="m" metricValue="1.13" pageId="21" pageNumber="274" unit="m" value="1130.0">
<quantity box="[622,708,829,855]" metricMagnitude="3" metricUnit="m" metricValue="1.13" pageId="21" pageNumber="274" unit="m" value="1130.0">1130 m</quantity>
a.s.l.
</elevation>
,
<geoCoordinate box="[785,930,830,857]" degrees="30" direction="north" minutes="54.337" orientation="latitude" pageId="21" pageNumber="274" precision="1" value="30.905617">30°54.337N</geoCoordinate>
,
<geoCoordinate box="[943,1097,830,857]" degrees="103" direction="east" minutes="33.282" orientation="longitude" pageId="21" pageNumber="274" precision="1" value="103.5547">103°33.282E</geoCoordinate>
(locality code: 2015/53), leg.
<collectorName box="[151,289,865,891]" pageId="21" pageNumber="274">Hunyadi, A.</collectorName>
,
<date box="[301,440,865,892]" pageId="21" pageNumber="274" value="2015-06-06">
<collectingDate box="[301,440,865,892]" pageId="21" pageNumber="274" value="2015-06-06">6 June 2015</collectingDate>
</date>
, HA/1 (
<figureCitation box="[528,652,865,892]" captionStart="FIGURE 5" captionStartId="8.[152,255,1894,1918]" captionTargetBox="[198,1390,181,1871]" captionTargetId="figure-31@8.[198,1390,181,1871]" captionTargetPageId="8" captionText="FIGURE 5. Shells of Pincerna Preston, 1907 species.AE: Pincerna acroptychia n. sp. (holotype); FI: Pincerna maolanensis (Luo, Zhang &amp; Zhuo, 2009) (holotype); JM: Pincerna yaanensis Z.-G. Chen, 2022, holotype; NR: P. yaanensis, locality 2015/53, coll. HA. Photos: Kaibaryer Meng (FI), B. Páll-Gergely (AE, NR), photos from the original description (JM). White lines indicate length of suture." figureDoi="http://doi.org/10.5281/zenodo.7687428" httpUri="https://zenodo.org/record/7687428/files/figure.png" pageId="21" pageNumber="274">Fig. 5NR</figureCitation>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="21" pageNumber="274" type="distribution">
<paragraph blockId="21.[151,1437,721,1323]" pageId="21" pageNumber="274">
<emphasis bold="true" box="[199,353,901,927]" pageId="21" pageNumber="274">Distribution.</emphasis>
This species is known from two closely situated localities in central
<collectingRegion box="[1136,1230,901,927]" country="China" name="Sichuan" pageId="21" pageNumber="274">Sichuan</collectingRegion>
. Here I report this species from another site ca.
<quantity box="[476,561,937,963]" metricMagnitude="5" metricUnit="m" metricValue="1.0" pageId="21" pageNumber="274" unit="km" value="100.0">100 km</quantity>
north from the known localities (
<figureCitation box="[936,1005,937,963]" captionStart="FIGURE 6" captionStartId="9.[152,255,1367,1391]" captionTargetBox="[151,1436,181,1343]" captionTargetId="figure-15@9.[151,1436,181,1343]" captionTargetPageId="9" captionText="FIGURE 6. Distribution of Pincerna Preston, 1907 species. Circles: Pincerna costulosus (Bavay &amp; Dautzenberg, 1912) (yellow circle indicates the type locality of Pincerna vallis Z.-Y. Chen &amp; M. Wu, 2020); Yellow triangle: Pincerna acroptychia n. sp.; Green rhomb: Pincerna yaanensis Z.-Y. Chen, 2022. The map was made using Google Earth Pro." figureDoi="http://doi.org/10.5281/zenodo.7687430" httpUri="https://zenodo.org/record/7687430/files/figure.png" pageId="21" pageNumber="274">Fig. 6</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="21" pageNumber="274" type="discussion">
<paragraph blockId="21.[151,1437,721,1323]" pageId="21" pageNumber="274">
<emphasis bold="true" box="[199,315,973,999]" pageId="21" pageNumber="274">Remarks.</emphasis>
<taxonomicName authorityName="Z.-G. Chen" authorityYear="2022" box="[323,544,974,999]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis box="[323,544,974,999]" italics="true" pageId="21" pageNumber="274">Pincerna yaanensis</emphasis>
</taxonomicName>
is a recently described species from central
<collectingRegion box="[1048,1142,973,999]" country="China" name="Sichuan" pageId="21" pageNumber="274">Sichuan</collectingRegion>
. According to the original description, it is larger than
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[456,599,1009,1035]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[456,599,1009,1035]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
, it has a ribbed R3 (smooth in
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[930,1073,1009,1035]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[930,1073,1009,1035]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
), has a more convex body whorl, denser ribs, and an umbilicus completely covered by the reflected peristome. After examining several
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[1292,1437,1045,1071]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[1292,1437,1045,1071]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
shells belonging to multiple populations, the differences between
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[891,1036,1081,1107]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[891,1036,1081,1107]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Z.-G. Chen" authorityYear="2022" box="[1091,1229,1082,1107]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis box="[1091,1229,1082,1107]" italics="true" pageId="21" pageNumber="274">P. yaanensis</emphasis>
</taxonomicName>
do not seem to be convincing. The difference in size between
<taxonomicName authorityName="Z.-G. Chen" authorityYear="2022" box="[637,774,1118,1143]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis box="[637,774,1118,1143]" italics="true" pageId="21" pageNumber="274">P. yaanensis</emphasis>
</taxonomicName>
and
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[828,973,1117,1143]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[828,973,1117,1143]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
is only minimal; the difference regarding R3 is not correct, because some
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[511,655,1153,1179]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[511,655,1153,1179]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
shells (even
<typeStatus box="[800,901,1153,1179]" pageId="21" pageNumber="274">syntypes</typeStatus>
, see
<figureCitation box="[954,1072,1153,1179]" captionStart="FIGURE 8" captionStartId="11.[152,255,1975,1999]" captionTargetBox="[151,1436,885,1952]" captionTargetId="figure-310@11.[151,1436,885,1952]" captionTargetPageId="11" captionText="FIGURE 8. Shells of Pincerna costulosus (Bavay &amp; Dautzenberg, 1912).AD: MNHN-IM-2000-31786 (syntype); EH:Phong Tho, MNHN-IM-2012-27043 (probable syntype); IL: Northern Laos, MNHN-IM-2012-27218." figureDoi="http://doi.org/10.5281/zenodo.7687434" httpUri="https://zenodo.org/record/7687434/files/figure.png" pageId="21" pageNumber="274">Fig. 8EH</figureCitation>
) have ribs on R3; the rib density is also variable across populations of
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[575,720,1189,1215]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[575,720,1189,1215]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
(although probably still denser than in any
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[1214,1359,1189,1215]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[1214,1359,1189,1215]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
shell); and the umbilicus is completely covered in some
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[713,858,1225,1251]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[713,858,1225,1251]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
shells (see
<figureCitation box="[991,1113,1225,1251]" captionStart="FIGURE 8" captionStartId="11.[152,255,1975,1999]" captionTargetBox="[151,1436,885,1952]" captionTargetId="figure-310@11.[151,1436,885,1952]" captionTargetPageId="11" captionText="FIGURE 8. Shells of Pincerna costulosus (Bavay &amp; Dautzenberg, 1912).AD: MNHN-IM-2000-31786 (syntype); EH:Phong Tho, MNHN-IM-2012-27043 (probable syntype); IL: Northern Laos, MNHN-IM-2012-27218." figureDoi="http://doi.org/10.5281/zenodo.7687434" httpUri="https://zenodo.org/record/7687434/files/figure.png" pageId="21" pageNumber="274">Fig. 8EH</figureCitation>
).
<taxonomicName authorityName="Z.-G. Chen" authorityYear="2022" box="[1133,1353,1226,1251]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis box="[1133,1353,1226,1251]" italics="true" pageId="21" pageNumber="274">Pincerna yaanensis</emphasis>
</taxonomicName>
should be kept as an independent species because of the R3 of
<taxonomicName baseAuthorityName="Bavay &amp; Dautzenberg" baseAuthorityYear="1912" box="[791,937,1261,1287]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="costulosus">
<emphasis box="[791,937,1261,1287]" italics="true" pageId="21" pageNumber="274">P. costulosus</emphasis>
</taxonomicName>
has a central swelling, whereas it is shifted towards the aperture in
<taxonomicName authorityName="Z.-G. Chen" authorityYear="2022" box="[416,553,1298,1323]" class="Gastropoda" family="Alycaeidae" genus="Pincerna" kingdom="Animalia" order="Architaenioglossa" pageId="21" pageNumber="274" phylum="Mollusca" rank="species" species="yaanensis">
<emphasis box="[416,553,1298,1323]" italics="true" pageId="21" pageNumber="274">P. yaanensis</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>