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<document id="57BE9BD248C760FFE909F722AC295447" ID-CLB-Dataset="283961" ID-DOI="10.5252/zoosystema2023v45a25" ID-GBIF-Dataset="6247b5e8-e434-4ff4-a408-d8ee87c09da7" ID-ISSN="1638-9387" ID-Zenodo-Dep="10458066" ID-ZooBank="054D312B-C54B-459D-8A47-AC9CB681D7D4" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.materialsCitations_approvedBy="tatiana" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="tatiana" IM.taxonomicNames_approvedBy="tatiana" IM.treatmentCitations_approvedBy="tatiana" IM.treatments_approvedBy="tatiana" checkinTime="1703327942758" checkinUser="plazi" docAuthor="Amati, Bruno, Giulio, Andrea Di &amp; Oliverio, Marco" docDate="2023" docId="03E387F10B617507FC534D76EEECFB66" docLanguage="en" docName="zoosystema.2023.45.25.pdf" docOrigin="Zoosystema 45 (25)" docSource="https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2023v45a25.pdf" docStyle="DocumentStyle:5CC576F744449C1860B4E72ABD884631.7:Zoosystema.2020-.journal_article" docStyleId="5CC576F744449C1860B4E72ABD884631" docStyleName="Zoosystema.2020-.journal_article" docStyleVersion="7" docTitle="Alvania letourneuxi Amati &amp; Giulio &amp; Oliverio 2023, n. sp." docType="treatment" docUuid="A14FC6C0-1612-4047-9680-667661FE88A5" docUuidSource="ZooBank" docVersion="6" lastPageNumber="811" masterDocId="FFDAFF890B69750DFFB24B64EC17FF88" masterDocTitle="Shallow-water Rissoidae of the genera Alvania Risso 1826 Haurakia Iredale 1915 Parashiela Laseron 1956 Simulamerelina Ponder 1985 and Subestea Cotton 1944 Gastropoda Caenogastropoda Rissooidea from French Polynesia with the description of a new deep-water genus" masterLastPageNumber="892" masterPageNumber="803" pageNumber="809" updateTime="1704365806984" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="1D2EA962CDAEB8A6E004B4D98171A339">Shallow-water Rissoidae of the genera Alvania Risso 1826 Haurakia Iredale 1915 Parashiela Laseron 1956 Simulamerelina Ponder 1985 and Subestea Cotton 1944 Gastropoda Caenogastropoda Rissooidea from French Polynesia with the description of a new deep-water genus</mods:title>
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<mods:namePart id="0609E67D48710BF3D67601EDF9387098">Amati, Bruno</mods:namePart>
<mods:affiliation id="C4A8E196D45DF55881EFB4B3A8EC8CD5">Largo Giuseppe Veratti, 37 / D, I- 00146 Roma (Italy) bruno _ amati @ yahoo. it</mods:affiliation>
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<mods:namePart id="113A626CB97D28D99BCCD545B3D9141F">Giulio, Andrea Di</mods:namePart>
<mods:affiliation id="E8B33FA2206AADD47C5B9A330FBE3CCB">Dipartimento di Scienze, LIME Lab, Università “ Roma Tre ”, Viale Marconi, 446, I- 00146 Roma (Italy) and NBFC, National Biodiversity Future Center, Palermo I- 90133 (Italy) andrea. digiulio @ uniroma 3. it</mods:affiliation>
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<mods:affiliation id="BE1CCF3913CF803CCAC92419687F27E6">Dipartimento di Biologia e Biotecnologie Charles Darwin, Sapienza Università di Roma, Viale dellUniversità 32, I- 00185 Roma (Italy) marco. oliverio @ uniroma 1. it</mods:affiliation>
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<emphasis id="B93EEAF50B617505FC534D76E8AEF9A5" bold="true" box="[993,1209,1554,1581]" italics="true" pageId="8" pageNumber="809">Alvania letourneuxi</emphasis>
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<paragraph id="8BF536E70B617505FC094D56E936F9C5" blockId="8.[955,1313,1554,1613]" box="[955,1313,1586,1613]" pageId="8" pageNumber="809">
(
<figureCitation id="13712A620B617505FC704D56E811F9C5" box="[962,1030,1586,1613]" captionStart="FIG" captionStartId="9.[132,143,1264,1282]" captionTargetBox="[162,1425,216,1222]" captionTargetId="figure-297@9.[152,1425,200,1229]" captionTargetPageId="9" captionText="FIG. 5. — Alvania letourneuxi n. sp.: holotype, Tuamotu, Makemo, Passe Arikitamiro 1-20 m, MNHN-IM-2000-38703, height 1.60 mm: A-C, shell; D, E, details of the protoconch. Scale bars: D, E, 20 μm." figureDoi="http://doi.org/10.5281/zenodo.10458076" httpUri="https://zenodo.org/record/10458076/files/figure.png" pageId="8" pageNumber="809">Figs 5</figureCitation>
;
<figureCitation id="13712A620B617505FBA04D56E835F9C4" box="[1042,1058,1586,1612]" captionStart="FIG" captionStartId="10.[132,143,1013,1031]" captionTargetBox="[134,1455,216,968]" captionTargetId="figure-658@10.[133,1455,216,968]" captionTargetPageId="10" captionText="FIG. 6. — Alvania letourneuxi n. sp.: holotype, Tuamotu, Makemo, Passe Arikitamiro 1-20 m, MNHN-IM-2000-38703, height 1.60 mm: A, shell; B-D, detail of the protoconch sculpture. Scale bars: B, C, 100 μm; D, 20 μm." figureDoi="http://doi.org/10.5281/zenodo.10458078" httpUri="https://zenodo.org/record/10458078/files/figure.png" pageId="8" pageNumber="809">6</figureCitation>
;
<figureCitation id="13712A620B617505FB9C4D57E849F9C5" box="[1070,1118,1587,1613]" captionStart="FIG" captionStartId="75.[134,145,1706,1724]" captionTargetBox="[130,1458,1233,1662]" captionTargetId="figure-467@75.[130,1458,1233,1662]" captionTargetPageId="75" captionText="FIG. 49. — Type locality of Alvania isolata (Laseron, 1956) (○, Christmas Island), and location of the stations of the “Valdivia” deep-water expedition (●) where types of Alvania denseclathrata (Thiele, 1925) (Stns 81, 95 and 104) and of Alvania proditoris (Thiele, 1925) n. comb. (Stns 81, 95 and 101) were collected." figureDoi="http://doi.org/10.5281/zenodo.10458172" httpUri="https://zenodo.org/record/10458172/files/figure.png" pageId="8" pageNumber="809">49A</figureCitation>
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<figureCitation id="13712A620B617505FBDB4D56E88EF9C5" box="[1129,1177,1586,1613]" captionStart="FIG" captionStartId="78.[132,143,1757,1775]" captionTargetBox="[168,1424,215,1709]" captionTargetId="figure-15@78.[168,1424,206,1709]" captionTargetPageId="78" captionText="FIG. 53. — Alvania Risso,1826,Ellenstrongia n. gen., Haurakia Iredale,1915,Parashiela Laseron,1956,Simulamerelina Ponder,1985 and Substea Cotton,1944:A, Alvania letouneuxi n.sp., holotype,MNHN-IM-2000 38703, height 1.60 mm; B, Alvania herosae n. sp., holotype,MNHN-IM-2000-38704, height 2.02 mm;C, Alvania herosae n.sp.(morph B),MNHN,height 2.16 mm;D, Alvania parvimaculata n. sp.,holotype,MNHN-IM-2000-38706, height 1.65 mm;E, Alvania prosocostata n.sp., holotype, MNHN-IM-2000-38708 height 2.05 mm; F, Alvania uapou n. sp., holotype, MNHN-IM-2000-38710, height 1.70 mm; G, Ellenstrongia tarasoc n. gen., n. sp., holotype,MNHN-IM-2000-39448, height 4.50 mm; H, Haurakia marmorata (Hedley, 1907), Society Islands,height 1.95 mm, coll. JL; I, Parashiela ambulata Laseron, 1956, Australes: Rapa Pointe Kauira, height 1.60 mm, MNHN; J, Parashiela expansilabrum n. sp. holotype, MNHN-IM-2000-38712 height 1.47 mm; K, Parashiela obesula n. sp. holotype, MNHN-IM-2000-38714, height 1.32 mm; L, Parashiela rimatara n. sp. holotype, MNHN-IM-2000-38716, height 1.47 mm; M, Parashiela rotundata n. sp. holotype, MNHN-IM-200038718-, height 1.10 mm; N, Parashiela soniae n. sp., holotype, MNHN-IM-2000-38720, height 1.17 mm; O, Simulamerelina australes n. sp. holotype, MNHN-IM-2000-38722, height 2.47 mm; P, Simulamerelina densestriata n. sp., holotype, MNHN-IM-2000-38724, height 2.45 mm; Q, Simulamerelina gracilis n. sp., holotype, MNHN-IM-2000-38726, height 2.45 mm; R, Simulamerelina lepteseiras n. sp., holotype, MNHN- IM-2000-38727, height 1.47 mm; S, Simulamerelina micrometrica n. sp., holotype, MNHN-IM-2000-38728, height 1.33 mm; T, Simulamerelina tuamotu n. sp. holotype, MNHN-IM-2000-38730, height 1.57 mm; U, Subestea moruroa n. sp., holotype, MNHN-IM-2000-38732, height 1.96 mm." figureDoi="http://doi.org/10.5281/zenodo.10458180" httpUri="https://zenodo.org/record/10458180/files/figure.png" pageId="8" pageNumber="809">53A</figureCitation>
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<tableCitation id="C6C8035C0B617505FB114D56E8EBF9C5" box="[1187,1276,1586,1613]" captionStart="TABLE" captionStartId="29.[132,143,219,237]" captionTargetPageId="29" captionText="TABLE 1. — Measurements of teleoconch and protoconch of Polynesian species of Alvania and Ellenstrongia n. gen., in mm, with minimum-maximum range and mean [standard deviation in square parentheses]; sample size in parentheses with the species name; M, protoconch multispiral; P, protoconch paucispiral." httpUri="http://table.plazi.org/id/DF35666F0B747510FF364BBFE9A6FE8C" pageId="8" pageNumber="809" tableUuid="DF35666F0B747510FF364BBFE9A6FE8C">Tables 1</tableCitation>
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;
<collectorName id="26BF53310B617505FBB54D8CE891F977" box="[1031,1158,1768,1791]" pageId="8" pageNumber="809">J. Letourneux</collectorName>
leg.;
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.
</materialsCitation>
</paragraph>
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.
<emphasis id="B93EEAF50B617505FC0D4C7FEFCFF8BA" box="[959,984,1819,1842]" italics="true" pageId="8" pageNumber="809"></emphasis>
Tuamotu: Makemo, Passe Arikitamiro;
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,
<geoCoordinate id="EE7E50200B617505FC9F4C50EFA3F8C4" box="[813,948,1844,1868]" degrees="143" direction="west" minutes="33" orientation="longitude" pageId="8" pageNumber="809" precision="15" seconds="50" value="-143.56389">143°3350”W</geoCoordinate>
;
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1-
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.
</paragraph>
</subSubSection>
<subSubSection id="C350656C0B617505FC9F4C0CE862F861" pageId="8" pageNumber="809" type="distribution">
<paragraph id="8BF536E70B617505FC9F4C0CE810F83C" blockId="8.[813,1457,1895,2025]" pageId="8" pageNumber="809">
<smallCapsWord id="8D13A03B0B617505FC9F4C0CEFD7F8F6" baselines="1913,1914" box="[813,960,1896,1919]" lowerCaseFontSize="7" mainFontSize="10" normCase="title" normString="Distribution" pageId="8" pageNumber="809">DISTRIBUTION</smallCapsWord>
<smallCapsWord id="8D13A03B0B617505FC7A4C09EFE4F8F6" baselines="1914" box="[968,1011,1901,1918]" lowerCaseFontSize="7" mainFontSize="10" normCase="lower" normString="and" pageId="8" pageNumber="809">AND</smallCapsWord>
<smallCapsWord id="8D13A03B0B617505FC4E4C09E848F8F6" baselines="1914" box="[1020,1119,1901,1918]" lowerCaseFontSize="7" mainFontSize="10" normCase="lower" normString="sympatry" pageId="8" pageNumber="809">SYMPATRY</smallCapsWord>
.
<emphasis id="B93EEAF50B617505FBDD4C0CE941F8F7" box="[1135,1366,1895,1919]" italics="true" pageId="8" pageNumber="809">
<taxonomicName id="4C4A4D640B617505FB234C03E941F8F7" authority="Amati &amp; Giulio &amp; Oliverio, 2023" authorityName="Amati &amp; Giulio &amp; Oliverio" authorityYear="2023" box="[1169,1366,1895,1919]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="809" phylum="Mollusca" rank="species" species="letourneuxi" status="sp. nov.">Alvania letourneuxi</taxonomicName>
</emphasis>
<taxonomicNameLabel id="A20D578E0B617505FAEC4C0CE98FF8F7" box="[1374,1432,1896,1919]" pageId="8" pageNumber="809" rank="species">n. sp.</taxonomicNameLabel>
is known from the South Pacific Ocean, in the
<taxonomicName id="4C4A4D640B617505FB6F4CE6E9A6F811" authority="Archipelago" authorityName="Archipelago" box="[1245,1457,1921,1945]" class="Gastropoda" family="Rissoidae" genus="Simulamerelina" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="809" phylum="Mollusca" rank="species" species="tuamotu">Tuamotu Archipelago</taxonomicName>
(Makemo) (
<figureCitation id="13712A620B617505FC104CF8EFECF83C" box="[930,1019,1948,1972]" captionStart="FIG" captionStartId="75.[134,145,1706,1724]" captionTargetBox="[130,1458,1233,1662]" captionTargetId="figure-467@75.[130,1458,1233,1662]" captionTargetPageId="75" captionText="FIG. 49. — Type locality of Alvania isolata (Laseron, 1956) (○, Christmas Island), and location of the stations of the “Valdivia” deep-water expedition (●) where types of Alvania denseclathrata (Thiele, 1925) (Stns 81, 95 and 104) and of Alvania proditoris (Thiele, 1925) n. comb. (Stns 81, 95 and 101) were collected." figureDoi="http://doi.org/10.5281/zenodo.10458172" httpUri="https://zenodo.org/record/10458172/files/figure.png" pageId="8" pageNumber="809">Fig. 49A</figureCitation>
).
</paragraph>
<paragraph id="8BF536E70B617505FC9F4CD2E862F861" blockId="8.[813,1457,1895,2025]" pageId="8" pageNumber="809">
<taxonomicName id="4C4A4D640B617505FC9F4CD2EFF0F846" authority="Amati &amp; Giulio &amp; Oliverio, 2023" authorityName="Amati &amp; Giulio &amp; Oliverio" authorityYear="2023" box="[813,999,1974,1998]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="809" phylum="Mollusca" rank="species" species="letourneuxi" status="sp. nov.">
<emphasis id="B93EEAF50B617505FC9F4CD2EFF0F846" box="[813,999,1974,1998]" italics="true" pageId="8" pageNumber="809">Alvania letourneuxi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A20D578E0B617505FC5F4CD3E834F846" box="[1005,1059,1975,1998]" pageId="8" pageNumber="809" rank="species">n. sp.</taxonomicNameLabel>
is sympatric with
<taxonomicName id="4C4A4D640B617505FB654CD2E9B8F846" authority="Amati &amp; Giulio &amp; Oliverio, 2023" authorityName="Amati &amp; Giulio &amp; Oliverio" authorityYear="2023" box="[1239,1455,1974,1998]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="809" phylum="Mollusca" rank="species" species="parvimaculata" status="sp. nov.">
<emphasis id="B93EEAF50B617505FB654CD2E9B8F846" box="[1239,1455,1974,1998]" italics="true" pageId="8" pageNumber="809">Alvania parvimaculata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A20D578E0B617505FC9F4CB5EF75F860" box="[813,866,2001,2024]" pageId="8" pageNumber="809" rank="species">n. sp.</taxonomicNameLabel>
in the
<taxonomicName id="4C4A4D640B617505FC144CB5E866F861" authority="(Makemo)" baseAuthorityName="Makemo" box="[934,1137,2001,2025]" class="Gastropoda" family="Rissoidae" genus="Simulamerelina" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="809" phylum="Mollusca" rank="species" species="tuamotu">Tuamotu (Makemo)</taxonomicName>
.
</paragraph>
</subSubSection>
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. 5.
<emphasis id="B93EEAF50B607504FF0E4F94ED66FA8A" box="[188,369,1264,1282]" italics="true" pageId="9" pageNumber="810">
<taxonomicName id="4C4A4D640B607504FF664F94ED66FA8A" authority="Amati &amp; Giulio &amp; Oliverio, 2023" authorityName="Amati &amp; Giulio &amp; Oliverio" authorityYear="2023" box="[212,369,1264,1282]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="9" pageNumber="810" phylum="Mollusca" rank="species" species="letourneuxi" status="sp. nov.">Alvania letourneuxi</taxonomicName>
</emphasis>
<taxonomicNameLabel id="A20D578E0B607504FEC74F94EDB0FA8A" box="[373,423,1264,1282]" pageId="9" pageNumber="810" rank="species">n. sp.</taxonomicNameLabel>
: holotype,
<taxonomicName id="4C4A4D640B607504FDB24F94EF21FA8A" authority=", Makemo, Passe Arikitamiro" authorityName="Makemo, Passe Arikitamiro" box="[512,822,1264,1282]" class="Gastropoda" family="Rissoidae" genus="Simulamerelina" kingdom="Animalia" order="Littorinimorpha" pageId="9" pageNumber="810" phylum="Mollusca" rank="species" species="tuamotu">Tuamotu, Makemo, Passe Arikitamiro</taxonomicName>
1-20 m, MNHN-IM-2000-38703, height 1.60 mm:
<emphasis id="B93EEAF50B607504FB6A4F94E8EDFA8A" bold="true" box="[1240,1274,1264,1282]" pageId="9" pageNumber="810">A -C</emphasis>
, shell;
<emphasis id="B93EEAF50B607504FA874F94E954FA8A" bold="true" box="[1333,1347,1264,1282]" pageId="9" pageNumber="810">D</emphasis>
,
<emphasis id="B93EEAF50B607504FAFF4F94E94EFA8A" bold="true" box="[1357,1369,1264,1282]" pageId="9" pageNumber="810">E</emphasis>
, details of the protoconch. Scale bars: D, E, 20 μm.
</paragraph>
</caption>
<subSubSection id="C350656C0B607504FF364E32EE2AFA35" pageId="9" pageNumber="810" type="etymology">
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.
<emphasis id="B93EEAF50B607504FEBE4E32ED32FAE5" box="[268,293,1366,1389]" italics="true" pageId="9" pageNumber="810"></emphasis>
Named after Jean Letourneux (Mahina, Tahiti), who collected the
<typeStatus id="54F188450B607504FE864E14ED49FA00" box="[308,350,1392,1416]" pageId="9" pageNumber="810">type</typeStatus>
material in the Tuamotu, for his continuous study of the Polynesian molluscs, and for having made materials from his collection available for this revision.
</paragraph>
</subSubSection>
<subSubSection id="C350656C0B607504FF364EBAED50F9CD" pageId="9" pageNumber="810" type="diagnosis">
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.
<emphasis id="B93EEAF50B607504FF4A4EBAED49FA7D" box="[248,350,1501,1525]" italics="true" pageId="9" pageNumber="810">
<taxonomicName id="4C4A4D640B607504FEA44EB9ED49FA7D" authorityName="Risso" authorityYear="1826" box="[278,350,1501,1525]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="9" pageNumber="810" phylum="Mollusca" rank="genus">Alvania</taxonomicName>
</emphasis>
with small shell (&lt;
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height); protoconch paucispiral; spiral sculpture a little stronger than axial; two spiral cordlets starting after protoconch-teleoconch boundary; colouration uniform white.
</paragraph>
</subSubSection>
<subSubSection id="C350656C0B607507FF364D17EEFCFB06" lastPageId="10" lastPageNumber="811" pageId="9" pageNumber="810" type="description">
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<smallCapsWord id="8D13A03B0B607504FEF24D1CEDA7F903" baselines="1670" box="[320,432,1656,1675]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="holotype" pageId="9" pageNumber="810">
<typeStatus id="54F188450B607504FEF24D1CEDA7F903" box="[320,432,1656,1675]" pageId="9" pageNumber="810" type="holotype">HOLOTYPE</typeStatus>
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</paragraph>
<paragraph id="8BF536E70B607504FF364DF6ED88F924" blockId="9.[132,775,1651,1772]" box="[132,415,1682,1708]" pageId="9" pageNumber="810">
<emphasis id="B93EEAF50B607504FF364DF6ED88F924" box="[132,415,1682,1708]" italics="true" pageId="9" pageNumber="810">
Shell (
<figureCitation id="13712A620B607504FF764DF6ED15F924" box="[196,258,1682,1708]" captionStart="FIG" captionStartId="9.[132,143,1264,1282]" captionTargetBox="[162,1425,216,1222]" captionTargetId="figure-297@9.[152,1425,200,1229]" captionTargetPageId="9" captionText="FIG. 5. — Alvania letourneuxi n. sp.: holotype, Tuamotu, Makemo, Passe Arikitamiro 1-20 m, MNHN-IM-2000-38703, height 1.60 mm: A-C, shell; D, E, details of the protoconch. Scale bars: D, E, 20 μm." figureDoi="http://doi.org/10.5281/zenodo.10458076" httpUri="https://zenodo.org/record/10458076/files/figure.png" pageId="9" pageNumber="810">Figs 5</figureCitation>
A-C; 6A; 53A)
</emphasis>
</paragraph>
<paragraph id="8BF536E70B607504FF364DD6EE3DF964" blockId="9.[132,775,1651,1772]" pageId="9" pageNumber="810">
Small for the genus, height
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, width
<quantity id="4CB29B020B607504FDFC4DD6EEA6F945" box="[590,689,1714,1741]" metricMagnitude="-4" metricUnit="m" metricValue="9.5" pageId="9" pageNumber="810" unit="mm" value="0.95">0.95 mm</quantity>
, height/ width ratio 1.69, robust, ovate-conical.
</paragraph>
<paragraph id="8BF536E70B607504FF364C76EDDFF8A4" blockId="9.[132,777,1810,2027]" box="[132,456,1810,1836]" pageId="9" pageNumber="810">
<emphasis id="B93EEAF50B607504FF364C76EDDFF8A4" box="[132,456,1810,1836]" italics="true" pageId="9" pageNumber="810">
Protoconch (
<figureCitation id="13712A620B607504FEB14C76ED61F8A3" box="[259,374,1810,1836]" captionStart="FIG" captionStartId="9.[132,143,1264,1282]" captionTargetBox="[162,1425,216,1222]" captionTargetId="figure-297@9.[152,1425,200,1229]" captionTargetPageId="9" captionText="FIG. 5. — Alvania letourneuxi n. sp.: holotype, Tuamotu, Makemo, Passe Arikitamiro 1-20 m, MNHN-IM-2000-38703, height 1.60 mm: A-C, shell; D, E, details of the protoconch. Scale bars: D, E, 20 μm." figureDoi="http://doi.org/10.5281/zenodo.10458076" httpUri="https://zenodo.org/record/10458076/files/figure.png" pageId="9" pageNumber="810">Figs 5D, E</figureCitation>
;
<figureCitation id="13712A620B607504FE314C76ED86F8A4" box="[387,401,1810,1836]" captionStart="FIG" captionStartId="10.[132,143,1013,1031]" captionTargetBox="[134,1455,216,968]" captionTargetId="figure-658@10.[133,1455,216,968]" captionTargetPageId="10" captionText="FIG. 6. — Alvania letourneuxi n. sp.: holotype, Tuamotu, Makemo, Passe Arikitamiro 1-20 m, MNHN-IM-2000-38703, height 1.60 mm: A, shell; B-D, detail of the protoconch sculpture. Scale bars: B, C, 100 μm; D, 20 μm." figureDoi="http://doi.org/10.5281/zenodo.10458078" httpUri="https://zenodo.org/record/10458078/files/figure.png" pageId="9" pageNumber="810">6</figureCitation>
B-D)
</emphasis>
</paragraph>
<paragraph id="8BF536E70B607504FF364C55EDE9F863" blockId="9.[132,777,1810,2027]" pageId="9" pageNumber="810">
Paucispiral with nucleus intorted, of 1 convex whorl, height
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, nucleus diameter
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, first half whorl diameter
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, maximum diameter 0.200 mm; with 5 small keels, interspaced by axial riblets, replaced by scattered on the last quarter of whorl. Protoconch-teleoconch boundary well marked, prosocline.
</paragraph>
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<emphasis id="B93EEAF50B607504FC9F4E37EF8DFAE5" box="[813,922,1363,1389]" italics="true" pageId="9" pageNumber="810">Teleoconch</emphasis>
</paragraph>
<paragraph id="8BF536E70B607504FC9F4E17E879F8A4" blockId="9.[811,1456,1363,1836]" pageId="9" pageNumber="810">
Of 2.90 convex whorls, with suture impressed. Axial sculpture on the last whorl of 21 slightly prosocline ribs thinner than interspaces, gradually vanishing at the base. Spiral sculpture of equidistant cordlets slightly broader than axials, 7 on the last whorl, 3 above the aperture, one on suture line and 3 on the base. Cordlets II and III starting immediately after the protoconch-teleoconch boundary; cordlet I (subsutural) thinner, starting subsequently. Medium size, rounded tubercles at the intersections; interspaces quadrangular. Microsculpture of weak, minute spiral threads crossing the growth lines (
<figureCitation id="13712A620B607504FAE04DF6E9B6F924" box="[1362,1441,1682,1708]" captionStart="FIG" captionStartId="10.[132,143,1013,1031]" captionTargetBox="[134,1455,216,968]" captionTargetId="figure-658@10.[133,1455,216,968]" captionTargetPageId="10" captionText="FIG. 6. — Alvania letourneuxi n. sp.: holotype, Tuamotu, Makemo, Passe Arikitamiro 1-20 m, MNHN-IM-2000-38703, height 1.60 mm: A, shell; B-D, detail of the protoconch sculpture. Scale bars: B, C, 100 μm; D, 20 μm." figureDoi="http://doi.org/10.5281/zenodo.10458078" httpUri="https://zenodo.org/record/10458078/files/figure.png" pageId="9" pageNumber="810">Fig. 6B</figureCitation>
). Umbilical fissure absent. Aperture piriform, height
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, height/aperture height ratio 1.74, peristome continuous and simple, external varix moderately thickened, outer lip sharp, smooth internally, prosocline.
</paragraph>
<paragraph id="8BF536E70B607504FC9F4C35EF63F8E3" blockId="9.[813,1116,1873,1931]" box="[813,884,1873,1899]" pageId="9" pageNumber="810">
<emphasis id="B93EEAF50B607504FC9F4C35EF63F8E3" box="[813,884,1873,1899]" italics="true" pageId="9" pageNumber="810">Colour</emphasis>
</paragraph>
<paragraph id="8BF536E70B607504FC9F4C15E84BF803" blockId="9.[813,1116,1873,1931]" box="[813,1116,1905,1931]" pageId="9" pageNumber="810">Colouration uniform white.</paragraph>
<paragraph id="8BF536E70B607504FC9F4CD5E825F843" blockId="9.[813,1074,1969,2027]" box="[813,1074,1969,1995]" pageId="9" pageNumber="810">
<emphasis id="B93EEAF50B607504FC9F4CD5E825F843" box="[813,1074,1969,1995]" italics="true" pageId="9" pageNumber="810">Operculum and soft parts</emphasis>
</paragraph>
<paragraph id="8BF536E70B607504FC9F4CB5EFB5F863" blockId="9.[813,1074,1969,2027]" box="[813,930,2001,2027]" pageId="9" pageNumber="810">Unknown.</paragraph>
<caption id="DF35666F0B637507FF364891EE79FB96" ID-DOI="http://doi.org/10.5281/zenodo.10458078" ID-Zenodo-Dep="10458078" httpUri="https://zenodo.org/record/10458078/files/figure.png" pageId="10" pageNumber="811" startId="10.[132,143,1013,1031]" targetBox="[134,1455,216,968]" targetPageId="10" targetType="figure">
<paragraph id="8BF536E70B637507FF364891EE79FB96" blockId="10.[132,1455,1013,1054]" pageId="10" pageNumber="811">
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. 6.
<emphasis id="B93EEAF50B637507FF0E4891ED66FB8F" box="[188,369,1013,1031]" italics="true" pageId="10" pageNumber="811">
<taxonomicName id="4C4A4D640B637507FF664891ED66FB8F" authority="Amati &amp; Giulio &amp; Oliverio, 2023" authorityName="Amati &amp; Giulio &amp; Oliverio" authorityYear="2023" box="[212,369,1013,1031]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="10" pageNumber="811" phylum="Mollusca" rank="species" species="letourneuxi" status="sp. nov.">Alvania letourneuxi</taxonomicName>
</emphasis>
<taxonomicNameLabel id="A20D578E0B637507FEC74891EDBFFB8F" box="[373,424,1013,1031]" pageId="10" pageNumber="811" rank="species">n. sp.</taxonomicNameLabel>
: holotype,
<taxonomicName id="4C4A4D640B637507FDB34891EF20FB8F" authority=", Makemo, Passe Arikitamiro" authorityName="Makemo, Passe Arikitamiro" box="[513,823,1013,1031]" class="Gastropoda" family="Rissoidae" genus="Simulamerelina" kingdom="Animalia" order="Littorinimorpha" pageId="10" pageNumber="811" phylum="Mollusca" rank="species" species="tuamotu">Tuamotu, Makemo, Passe Arikitamiro</taxonomicName>
1-20 m, MNHN-IM-2000-38703, height 1.60 mm:
<emphasis id="B93EEAF50B637507FB6B4891E8F1FB8F" bold="true" box="[1241,1254,1013,1031]" pageId="10" pageNumber="811">A</emphasis>
, shell;
<emphasis id="B93EEAF50B637507FA934891E954FB8F" bold="true" box="[1313,1347,1013,1031]" pageId="10" pageNumber="811">B -D</emphasis>
, detail of the protoconch sculpture. Scale bars: B, C, 100 μm; D, 20 μm.
</paragraph>
</caption>
<paragraph id="8BF536E70B637507FF364F31ED11FBE5" blockId="10.[132,747,1109,1166]" box="[132,262,1109,1135]" pageId="10" pageNumber="811">
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</paragraph>
<paragraph id="8BF536E70B637507FF364F10EEFCFB06" blockId="10.[132,747,1109,1166]" box="[132,747,1140,1166]" pageId="10" pageNumber="811">
A single specimen known. (See
<tableCitation id="C6C8035C0B637507FE6A4F10EE30FB06" box="[472,551,1140,1166]" captionStart="TABLE" captionStartId="29.[132,143,219,237]" captionTargetPageId="29" captionText="TABLE 1. — Measurements of teleoconch and protoconch of Polynesian species of Alvania and Ellenstrongia n. gen., in mm, with minimum-maximum range and mean [standard deviation in square parentheses]; sample size in parentheses with the species name; M, protoconch multispiral; P, protoconch paucispiral." httpUri="http://table.plazi.org/id/DF35666F0B747510FF364BBFE9A6FE8C" pageId="10" pageNumber="811" tableUuid="DF35666F0B747510FF364BBFE9A6FE8C">Table 1</tableCitation>
and
<figureCitation id="13712A620B637507FDEC4F10EECDFB06" box="[606,730,1140,1166]" captionStart="APPENDIX" captionStartId="83.[132,144,422,440]" captionTargetPageId="83" captionText="APPENDIX 1. — Measurements of teleoconch and protoconch of Alvania letourneuxi n. sp. in mm: 1, holotype, Tuamotu, Makemo, Passe Arikitamiro." pageId="10" pageNumber="811">Appendix 1</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C350656C0B637507FF364FD0EEECFB66" pageId="10" pageNumber="811" type="discussion">
<paragraph id="8BF536E70B637507FF364FD0ECC9FB44" blockId="10.[132,763,1204,1262]" box="[132,222,1204,1230]" pageId="10" pageNumber="811">
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</paragraph>
<paragraph id="8BF536E70B637507FF364FB0EEECFB66" blockId="10.[132,763,1204,1262]" box="[132,763,1236,1262]" pageId="10" pageNumber="811">
See under
<taxonomicName id="4C4A4D640B637507FF474FB0EDBCFB66" authority="Amati &amp; Giulio &amp; Oliverio, 2023" authorityName="Amati &amp; Giulio &amp; Oliverio" authorityYear="2023" box="[245,427,1236,1262]" class="Gastropoda" family="Rissoidae" genus="Alvania" kingdom="Animalia" order="Littorinimorpha" pageId="10" pageNumber="811" phylum="Mollusca" rank="species" species="parvimaculata" status="n. sp.">
<emphasis id="B93EEAF50B637507FF474FB0EDBCFB66" box="[245,427,1236,1262]" italics="true" pageId="10" pageNumber="811">A. parvimaculata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A20D578E0B637507FE004FB0EDFAFB66" box="[434,493,1236,1262]" pageId="10" pageNumber="811" rank="species">n. sp.</taxonomicNameLabel>
for detailed comparison.
</paragraph>
</subSubSection>
</treatment>
</document>