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<document id="B59DB0DAAD7508854C78621D47A96258" ID-DOI="10.35885/ruthenica.2022.32(2).5" ID-ISSN="2307-7336" ID-Zenodo-Dep="11041109" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="tatiana" IM.materialsCitations_approvedBy="tatiana" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="tatiana" IM.taxonomicNames_approvedBy="tatiana" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="tatiana" checkinTime="1713810364962" checkinUser="felipe" docAuthor="Hasegawa, Kazunori" docDate="2022" docId="03F65E35FFBE3D4CFCD80F60A7F5F814" docLanguage="en" docName="Ruthenica.32.2.85-92.pdf" docOrigin="Ruthenica, Russian Malacological Journal 32 (2)" docSource="http://dx.doi.org/10.35885/ruthenica.2022.32(2).5" docStyle="DocumentStyle:3A4A24405A53639AD762166AE048D148.1:Ruthenica.2022-.journal_article.english.index" docStyleId="3A4A24405A53639AD762166AE048D148" docStyleName="Ruthenica.2022-.journal_article.english.index" docStyleVersion="1" docTitle="Punctulum flavum" docType="treatment" docVersion="3" lastPageNumber="88" masterDocId="FFCF264DFFBD3D4FFFBA0C61A34EFFEB" masterDocTitle="Bathyal Rissoidae (Gastropoda: Rissooidea) off the Russian Far East coast of the Sea of Japan, with redescription of Punctulum reticulatum Golikov, 1986" masterLastPageNumber="92" masterPageNumber="85" pageNumber="88" updateTime="1715157570046" updateUser="tatiana" zenodo-license-document="CC-BY-4.0">
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<mods:title id="636FD8E8A694B05695FAC8E83109F9C5">Bathyal Rissoidae (Gastropoda: Rissooidea) off the Russian Far East coast of the Sea of Japan, with redescription of Punctulum reticulatum Golikov, 1986</mods:title>
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<treatment id="03F65E35FFBE3D4CFCD80F60A7F5F814" ID-DOI="http://doi.org/10.5281/zenodo.11041127" ID-Zenodo-Dep="11041127" LSID="urn:lsid:plazi:treatment:03F65E35FFBE3D4CFCD80F60A7F5F814" httpUri="http://treatment.plazi.org/id/03F65E35FFBE3D4CFCD80F60A7F5F814" lastPageNumber="88" pageId="3" pageNumber="88">
<subSubSection id="C345BCA8FFBE3D4CFCD80F60A651FCF5" box="[866,1311,769,798]" pageId="3" pageNumber="88" type="nomenclature">
<paragraph id="8BE0EF23FFBE3D4CFCD80F60A651FCF5" blockId="3.[866,1311,769,829]" box="[866,1311,769,798]" pageId="3" pageNumber="88">
<heading id="D0A8584FFFBE3D4CFCD80F60A651FCF5" box="[866,1311,769,798]" centered="true" fontSize="12" level="2" pageId="3" pageNumber="88" reason="4">
<taxonomicName id="4C5F94A0FFBE3D4CFCD80F60A651FCF5" ID-CoL="4QHRP" authority="(Okutani, 1964)" baseAuthorityName="Okutani" baseAuthorityYear="1964" box="[866,1311,769,798]" class="Gastropoda" family="Rissoidae" genus="Punctulum" kingdom="Animalia" order="Littorinimorpha" pageId="3" pageNumber="88" phylum="Mollusca" rank="species" species="flavum">
<emphasis id="B92B3331FFBE3D4CFCD80F60A704FCF5" box="[866,1098,769,798]" italics="true" pageId="3" pageNumber="88">Punctulum flavum</emphasis>
(
<bibRefCitation id="EFCE92D2FFBE3D4CFBE10F60A658FCF5" author="Okutani, T." box="[1115,1302,769,798]" pageId="3" pageNumber="88" pagination="371 - 447" refId="ref6203" refString="Okutani, T., 1964. Report on the archibenthal and abyssal gastropod Mollusca mainly collected from Sagami Bay and adjacent waters by the R. V. Soyo- Maru during the years 1955 - 1963. Journal of the Faculty of Science, University of Tokyo, Section II, 15: 371 - 447, pls. 1 - 7." type="journal article" year="1964">Okutani, 1964</bibRefCitation>
)
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C345BCA8FFBE3D4CFC400F42A7C9FCD6" box="[1018,1159,803,829]" pageId="3" pageNumber="88" type="description">
<paragraph id="8BE0EF23FFBE3D4CFC400F42A7C9FCD6" blockId="3.[866,1311,769,829]" box="[1018,1159,803,829]" pageId="3" pageNumber="88">
(
<figureCitation id="1364F3A6FFBE3D4CFBB90F42A731FCD6" box="[1027,1151,803,829]" captionStart="FIG" captionStartId="4.[174,216,1724,1745]" captionTargetBox="[174,1383,189,1701]" captionTargetId="figure-10@4.[174,1384,189,1701]" captionTargetPageId="4" captionText="FIG. 2. Species of Rissoidae. A. Punctulum akibai (Yokoyama, 1926), SoJaBio stn. A2-10 (455-456 m), MIBM 39336. B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio stn. A2-10 (455-456 m), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio stn. B7-7 (470-528 m), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio stn. B6-7 (1,001-1,011 m). G-J. Punctulum flavum (Okutani, 1964); G-H, “shallow-water form”, SoJaBio stn. A2-10 (455-456 m), MIBM 14270; I-J, “deep-water form”, SoJaBio stn. A6-7 (2,511-2,534 m), MIBM 39334. All at the same scale; scale = 1 mm. РИС. 2.Виды Rissoidae.A. Punctulum akibai (Yokoyama,1926), SoJaBioст.A2-10 (455-456м), MIBM 39336.B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio ст. A2-10 (455-456 м), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio ст. B7-7 (470-528 м), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio ст. B6-7 (1001-1011 м). G-J. Punctulum flavum (Okutani, 1964); G-H, “мелководнаЯ форма”, SoJaBio ст. A2-10 (455-456 м), MIBM 14270; I-J, “глубоководнаЯ форма”, SoJaBio ст. A6-7 (2511-2534 м), MIBM 39334. Все раковины в одном масШтабе, масШтабнаЯ линейка = 1 мм." figureDoi="http://doi.org/10.5281/zenodo.11041111" httpUri="https://zenodo.org/record/11041111/files/figure.png" pageId="3" pageNumber="88">Fig. 2 GI</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C345BCA8FFBE3D4CFC9B0F33A65AFC68" pageId="3" pageNumber="88" type="reference_group">
<paragraph id="8BE0EF23FFBE3D4CFC9B0F33A65AFC68" blockId="3.[801,1376,849,900]" pageId="3" pageNumber="88">
<treatmentCitationGroup id="AB4FC80DFFBE3D4CFC9B0F33A65AFC68" pageId="3" pageNumber="88">
<treatmentCitation id="0AFEC932FFBE3D4CFC9B0F33A78FFC8C" author="Okutani, T." box="[801,1217,850,872]" page="390" pageId="3" pageNumber="88" year="1964">
<taxonomicName id="4C5F94A0FFBE3D4CFC9B0F33A78FFC8C" ID-CoL="437B3" authority="Okutani, 1964: 389 - 390" authorityName="Okutani" authorityPageNumber="389 - 390" authorityYear="1964" box="[801,1217,850,872]" class="Gastropoda" family="Rissoidae" genus="Microstelma" kingdom="Animalia" order="Littorinimorpha" pageId="3" pageNumber="88" phylum="Mollusca" rank="species" species="flava">
<emphasis id="B92B3331FFBE3D4CFC9B0F33A081FC8C" box="[801,975,850,871]" italics="true" pageId="3" pageNumber="88">Microstelma flava</emphasis>
<bibRefCitation id="EFCE92D2FFBE3D4CFC6F0F33A78FFC8C" author="Okutani, T." box="[981,1217,850,872]" pageId="3" pageNumber="88" pagination="371 - 447" refId="ref6203" refString="Okutani, T., 1964. Report on the archibenthal and abyssal gastropod Mollusca mainly collected from Sagami Bay and adjacent waters by the R. V. Soyo- Maru during the years 1955 - 1963. Journal of the Faculty of Science, University of Tokyo, Section II, 15: 371 - 447, pls. 1 - 7." type="journal article" year="1964">Okutani, 1964: 389390</bibRefCitation>
</taxonomicName>
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, pl. 6, fig. 5 (see
<bibRefCitation id="EFCE92D2FFBE3D4CFCFD0F0FA0BEFC68" author="Hasegawa K." box="[839,1008,877,899]" pageId="3" pageNumber="88" pagination="75 - 148" refId="ref5887" refString="Hasegawa K. 2014. A review of bathyal Rissoidae in the Sea of Japan and adjacent waters (Gastropoda: Rissooidea). In: Fujita T. (Ed.). Deep-sea Fauna of the Sea of Japan. National Museum of Nature and Science Monographs, (44): 75 - 148." type="journal article" year="2014">Hasegawa [2014]</bibRefCitation>
for more detailed synonymy).
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C345BCA8FFBE3D4CFCFD0FF6A0E5FB40" pageId="3" pageNumber="88" type="materials_examined">
<paragraph id="8BE0EF23FFBE3D4CFCFD0FF6A61FFBD1" blockId="3.[800,1377,919,1195]" pageId="3" pageNumber="88">
<emphasis id="B92B3331FFBE3D4CFCFD0FF6A748FC46" bold="true" box="[839,1030,919,941]" pageId="3" pageNumber="88">Material examined</emphasis>
. SoJsBio A 2-10, MIBM 14270 (
<figureCitation id="1364F3A6FFBE3D4CFA830FF9A026FC21" captionStart="FIG" captionStartId="4.[174,216,1724,1745]" captionTargetBox="[174,1383,189,1701]" captionTargetId="figure-10@4.[174,1384,189,1701]" captionTargetPageId="4" captionText="FIG. 2. Species of Rissoidae. A. Punctulum akibai (Yokoyama, 1926), SoJaBio stn. A2-10 (455-456 m), MIBM 39336. B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio stn. A2-10 (455-456 m), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio stn. B7-7 (470-528 m), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio stn. B6-7 (1,001-1,011 m). G-J. Punctulum flavum (Okutani, 1964); G-H, “shallow-water form”, SoJaBio stn. A2-10 (455-456 m), MIBM 14270; I-J, “deep-water form”, SoJaBio stn. A6-7 (2,511-2,534 m), MIBM 39334. All at the same scale; scale = 1 mm. РИС. 2.Виды Rissoidae.A. Punctulum akibai (Yokoyama,1926), SoJaBioст.A2-10 (455-456м), MIBM 39336.B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio ст. A2-10 (455-456 м), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio ст. B7-7 (470-528 м), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio ст. B6-7 (1001-1011 м). G-J. Punctulum flavum (Okutani, 1964); G-H, “мелководнаЯ форма”, SoJaBio ст. A2-10 (455-456 м), MIBM 14270; I-J, “глубоководнаЯ форма”, SoJaBio ст. A6-7 (2511-2534 м), MIBM 39334. Все раковины в одном масШтабе, масШтабнаЯ линейка = 1 мм." figureDoi="http://doi.org/10.5281/zenodo.11041111" httpUri="https://zenodo.org/record/11041111/files/figure.png" pageId="3" pageNumber="88">Fig. 2 GH</figureCitation>
); SoJsBio A 3-10, MIBM 39344; SoJsBio A 3-11, MIBM 39335; SoJaBio A 6-7, MIBM 39334 (
<figureCitation id="1364F3A6FFBE3D4CFB550FB1A61AFC0D" box="[1263,1364,976,998]" captionStart="FIG" captionStartId="4.[174,216,1724,1745]" captionTargetBox="[174,1383,189,1701]" captionTargetId="figure-10@4.[174,1384,189,1701]" captionTargetPageId="4" captionText="FIG. 2. Species of Rissoidae. A. Punctulum akibai (Yokoyama, 1926), SoJaBio stn. A2-10 (455-456 m), MIBM 39336. B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio stn. A2-10 (455-456 m), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio stn. B7-7 (470-528 m), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio stn. B6-7 (1,001-1,011 m). G-J. Punctulum flavum (Okutani, 1964); G-H, “shallow-water form”, SoJaBio stn. A2-10 (455-456 m), MIBM 14270; I-J, “deep-water form”, SoJaBio stn. A6-7 (2,511-2,534 m), MIBM 39334. All at the same scale; scale = 1 mm. РИС. 2.Виды Rissoidae.A. Punctulum akibai (Yokoyama,1926), SoJaBioст.A2-10 (455-456м), MIBM 39336.B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio ст. A2-10 (455-456 м), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio ст. B7-7 (470-528 м), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio ст. B6-7 (1001-1011 м). G-J. Punctulum flavum (Okutani, 1964); G-H, “мелководнаЯ форма”, SoJaBio ст. A2-10 (455-456 м), MIBM 14270; I-J, “глубоководнаЯ форма”, SoJaBio ст. A6-7 (2511-2534 м), MIBM 39334. Все раковины в одном масШтабе, масШтабнаЯ линейка = 1 мм." figureDoi="http://doi.org/10.5281/zenodo.11041111" httpUri="https://zenodo.org/record/11041111/files/figure.png" pageId="3" pageNumber="88">Fig. 2 IJ</figureCitation>
); SoJaBio A6-8, MIBM 14412; SoJaBio B 6-6, MIBM 39346; SoJaBio B 6-7, MIBM 14492; SoJaBio B 7-6, MIBM 39345; SoJaBio B 7-7, MIBM 39341 [depth range:
<quantity id="4CA742C6FFBE3D4CFB730844A608FBD1" box="[1225,1350,1060,1083]" metricMagnitude="3" metricUnit="m" metricValue="1.5125" metricValueMax="2.555" metricValueMin="0.47" pageId="3" pageNumber="88" unit="m" value="1512.5" valueMax="2555.0" valueMin="470.0">4702555 m</quantity>
].
</paragraph>
<paragraph id="8BE0EF23FFBE3D4CFCFD0820A0E5FB40" blockId="3.[800,1377,919,1195]" pageId="3" pageNumber="88">
<emphasis id="B92B3331FFBE3D4CFCFD0820A733FBBC" bold="true" box="[839,1149,1089,1111]" pageId="3" pageNumber="88">Additional material examined</emphasis>
(cited from
<bibRefCitation id="EFCE92D2FFBE3D4CFB4D0820A019FB98" author="Hasegawa K." pageId="3" pageNumber="88" pagination="75 - 148" refId="ref5887" refString="Hasegawa K. 2014. A review of bathyal Rissoidae in the Sea of Japan and adjacent waters (Gastropoda: Rissooidea). In: Fujita T. (Ed.). Deep-sea Fauna of the Sea of Japan. National Museum of Nature and Science Monographs, (44): 75 - 148." type="journal article" year="2014">Hasegawa, 2014</bibRefCitation>
).
<materialsCitation id="3B37E57EFFBE3D4CFCDF083CA0E6FB40" collectorName="V Vityaz" elevation="1130" latitude="42.63" location="Vityaz st." longLatPrecision="114" longitude="134.30833" municipality="Great Bay" pageId="3" pageNumber="88" specimenCount="1">
IORAN, non-registered, R/
<collectorName id="26AA8AF5FFBE3D4CFBDC083CA7FCFB98" box="[1126,1202,1117,1139]" pageId="3" pageNumber="88">
V
<location id="8E80B9F8FFBE3D4CFBC2083FA781FB98" LSID="urn:lsid:plazi:treatment:03F65E35FFBE3D4CFCD80F60A7F5F814:8E80B9F8FFBE3D4CFBC2083FA781FB98" box="[1144,1231,1118,1139]" latitude="42.63" longLatPrecision="114" longitude="134.30833" municipality="Great Bay" name="Vityaz st." pageId="3" pageNumber="88">
<emphasis id="B92B3331FFBE3D4CFBC2083FA7FCFB98" box="[1144,1202,1118,1139]" italics="true" pageId="3" pageNumber="88">Vityaz</emphasis>
st.
</location>
</collectorName>
6649, Peter the
<collectingMunicipality id="6B847559FFBE3D4CFC9A0818A0CDFB64" box="[800,899,1145,1167]" pageId="3" pageNumber="88">Great Bay</collectingMunicipality>
,
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,
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42°37.8N, 134°18.5E, 1186
<quantity id="4CA742C6FFBE3D4CFCE708F4A0E6FB40" box="[861,936,1173,1195]" metricMagnitude="3" metricUnit="m" metricValue="1.13" pageId="3" pageNumber="88" unit="m" value="1130.0">
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.
</paragraph>
</subSubSection>
<subSubSection id="C345BCA8FFBE3D4CFCFD08DEA7A0FA90" pageId="3" pageNumber="88" type="distribution">
<paragraph id="8BE0EF23FFBE3D4CFCFD08DEA7A0FA90" blockId="3.[799,1377,1215,2048]" pageId="3" pageNumber="88">
<emphasis id="B92B3331FFBE3D4CFCFD08DEA097FB32" bold="true" box="[839,985,1215,1241]" pageId="3" pageNumber="88">Distribution</emphasis>
. Off the Primorsky Krai coast on the northern slope, and from off Rebun Island to the southernmost part of the southeastern slope in the Sea of
<collectingCountry id="F348AFB3FFBE3D4CFC870940A0CEFAD0" box="[829,896,1313,1339]" name="Japan" pageId="3" pageNumber="88">Japan</collectingCountry>
; the western Okhotsk Sea and Pacific coast of the Japanese archipelago south to Kyushu. Depth range in the Sea of
<collectingCountry id="F348AFB3FFBE3D4CFC430900A777FA90" box="[1017,1081,1377,1403]" name="Japan" pageId="3" pageNumber="88">Japan</collectingCountry>
is
<quantity id="4CA742C6FFBE3D4CFBE00900A7A4FA90" box="[1114,1258,1377,1403]" metricMagnitude="3" metricUnit="m" metricValue="1.1135" metricValueMax="2.027" metricValueMin="0.2" pageId="3" pageNumber="88" unit="m" value="1113.5" valueMax="2027.0" valueMin="200.0">2002027 m</quantity>
.
</paragraph>
</subSubSection>
<subSubSection id="C345BCA8FFBE3D4CFCFD09E0A7F5F814" pageId="3" pageNumber="88" type="discussion">
<paragraph id="8BE0EF23FFBE3D4CFCFD09E0A7F5F814" blockId="3.[799,1377,1215,2048]" pageId="3" pageNumber="88">
<emphasis id="B92B3331FFBE3D4CFCFD09E0A0FDFA70" bold="true" box="[839,947,1409,1435]" pageId="3" pageNumber="88">Remarks</emphasis>
. On both the northern and southeastern slopes of the Sea of
<collectingCountry id="F348AFB3FFBE3D4CFBBF09C3A706FA57" box="[1029,1096,1442,1468]" name="Japan" pageId="3" pageNumber="88">Japan</collectingCountry>
, two distinct phenotypes have been recognized in this species that are distinguished by the depth of their habitat [
<bibRefCitation id="EFCE92D2FFBE3D4CFB590983A02EF9F7" author="Hasegawa K." pageId="3" pageNumber="88" pagination="75 - 148" refId="ref5887" refString="Hasegawa K. 2014. A review of bathyal Rissoidae in the Sea of Japan and adjacent waters (Gastropoda: Rissooidea). In: Fujita T. (Ed.). Deep-sea Fauna of the Sea of Japan. National Museum of Nature and Science Monographs, (44): 75 - 148." type="journal article" year="2014">Hasegawa, 2014</bibRefCitation>
]. Down to ca.
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, specimens possess a low conical shell, with strong axial and spiral sculpture (the “shallow-water form”;
<figureCitation id="1364F3A6FFBE3D4CFB6B0A23A61CF9B6" box="[1233,1362,1602,1629]" captionStart="FIG" captionStartId="4.[174,216,1724,1745]" captionTargetBox="[174,1383,189,1701]" captionTargetId="figure-10@4.[174,1384,189,1701]" captionTargetPageId="4" captionText="FIG. 2. Species of Rissoidae. A. Punctulum akibai (Yokoyama, 1926), SoJaBio stn. A2-10 (455-456 m), MIBM 39336. B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio stn. A2-10 (455-456 m), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio stn. B7-7 (470-528 m), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio stn. B6-7 (1,001-1,011 m). G-J. Punctulum flavum (Okutani, 1964); G-H, “shallow-water form”, SoJaBio stn. A2-10 (455-456 m), MIBM 14270; I-J, “deep-water form”, SoJaBio stn. A6-7 (2,511-2,534 m), MIBM 39334. All at the same scale; scale = 1 mm. РИС. 2.Виды Rissoidae.A. Punctulum akibai (Yokoyama,1926), SoJaBioст.A2-10 (455-456м), MIBM 39336.B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio ст. A2-10 (455-456 м), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio ст. B7-7 (470-528 м), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio ст. B6-7 (1001-1011 м). G-J. Punctulum flavum (Okutani, 1964); G-H, “мелководнаЯ форма”, SoJaBio ст. A2-10 (455-456 м), MIBM 14270; I-J, “глубоководнаЯ форма”, SoJaBio ст. A6-7 (2511-2534 м), MIBM 39334. Все раковины в одном масШтабе, масШтабнаЯ линейка = 1 мм." figureDoi="http://doi.org/10.5281/zenodo.11041111" httpUri="https://zenodo.org/record/11041111/files/figure.png" pageId="3" pageNumber="88">Fig. 2G, H</figureCitation>
), while those from deeper stations possess a more inflated shell with very much weaker sculpture (the “deep-water form”;
<figureCitation id="1364F3A6FFBE3D4CFBB20AC2A73DF956" box="[1032,1139,1699,1725]" captionStart="FIG" captionStartId="4.[174,216,1724,1745]" captionTargetBox="[174,1383,189,1701]" captionTargetId="figure-10@4.[174,1384,189,1701]" captionTargetPageId="4" captionText="FIG. 2. Species of Rissoidae. A. Punctulum akibai (Yokoyama, 1926), SoJaBio stn. A2-10 (455-456 m), MIBM 39336. B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio stn. A2-10 (455-456 m), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio stn. B7-7 (470-528 m), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio stn. B6-7 (1,001-1,011 m). G-J. Punctulum flavum (Okutani, 1964); G-H, “shallow-water form”, SoJaBio stn. A2-10 (455-456 m), MIBM 14270; I-J, “deep-water form”, SoJaBio stn. A6-7 (2,511-2,534 m), MIBM 39334. All at the same scale; scale = 1 mm. РИС. 2.Виды Rissoidae.A. Punctulum akibai (Yokoyama,1926), SoJaBioст.A2-10 (455-456м), MIBM 39336.B. Punctulum nihonkaiensis (Hasegawa, 2014), SoJaBio ст. A2-10 (455-456 м), MIBM 39337. C-D. Frigidoalvania asura (Yokoyama, 1926), SoJaBio ст. B7-7 (470-528 м), MIBM 39340. E-F. Frigidoalvania tanseimaruae Hasegawa, 2014, SoJaBio ст. B6-7 (1001-1011 м). G-J. Punctulum flavum (Okutani, 1964); G-H, “мелководнаЯ форма”, SoJaBio ст. A2-10 (455-456 м), MIBM 14270; I-J, “глубоководнаЯ форма”, SoJaBio ст. A6-7 (2511-2534 м), MIBM 39334. Все раковины в одном масШтабе, масШтабнаЯ линейка = 1 мм." figureDoi="http://doi.org/10.5281/zenodo.11041111" httpUri="https://zenodo.org/record/11041111/files/figure.png" pageId="3" pageNumber="88">Fig. 2I, J</figureCitation>
). Furthermore, there is a correlation between the size of the protoconch and depth, with the “deep-water form” tending to have a larger protoconch. These two forms are still considered conspecific here because of the presence of intermediate forms at around
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. However, Criscione
<emphasis id="B92B3331FFBE3D4CFC280B04A08CF895" box="[914,962,1892,1918]" italics="true" pageId="3" pageNumber="88">et al</emphasis>
. [2019] indicated the presence of two genetically slightly distinct specimens identified as
<taxonomicName id="4C5F94A0FFBE3D4CFC9B0BC4A030F855" baseAuthorityName="Okutani" baseAuthorityYear="1964" box="[801,894,1956,1982]" class="Gastropoda" family="Rissoidae" genus="Punctulum" kingdom="Animalia" order="Littorinimorpha" pageId="3" pageNumber="88" phylum="Mollusca" rank="species" species="flavus">
<emphasis id="B92B3331FFBE3D4CFC9B0BC4A030F855" box="[801,894,1956,1982]" italics="true" pageId="3" pageNumber="88">P. flavus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5F94A0FFBE3D4CFC0F0BC4A778F855" baseAuthorityName="Okutani" baseAuthorityYear="1964" box="[949,1078,1956,1982]" class="Gastropoda" family="Rissoidae" genus="Punctulum" isUncertain="true" kingdom="Animalia" order="Littorinimorpha" pageId="3" pageNumber="88" phylum="Mollusca" rank="species" species="flavus">
<emphasis id="B92B3331FFBE3D4CFC0F0BC4A080F855" box="[949,974,1957,1982]" italics="true" pageId="3" pageNumber="88">P.</emphasis>
cf.
<emphasis id="B92B3331FFBE3D4CFC4F0BC5A778F855" box="[1013,1078,1956,1982]" italics="true" pageId="3" pageNumber="88">flavus</emphasis>
</taxonomicName>
in their analysis and if the latter corresponds to the “deep-water form”, the two may be separable as distinct species.
</paragraph>
</subSubSection>
</treatment>
</document>