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<document id="D9023C14C2ADF690E33459F222E26B7F" ID-DOI="10.5281/zenodo.281437" ID-GBIF-Dataset="d2ba1c60-b8e6-4623-8231-d98150162598" ID-ISSN="1175-5326" ID-Zenodo-Dep="281437" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460488764929" checkinUser="plazi" docAuthor="Geiger, Daniel L. &amp; Marshall, Bruce A." docDate="2012" docId="D077A52CA32FFFE9FF18FB67637A1DF2" docLanguage="en" docName="zt03344p033.pdf" docOrigin="Zootaxa 3344" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Sinezona platyspira Geiger &amp; Marshall, 2012, new species" docType="treatment" docVersion="7" lastPageNumber="11" masterDocId="2C4EDD54A327FFE3FF8FFF9661441F76" masterDocTitle="New species of Scissurellidae, Anatomidae, and Larocheidae (Mollusca: Gastropoda: Vetigastropoda) from New Zealand and beyond" masterLastPageNumber="33" masterPageNumber="1" pageNumber="9" updateTime="1698309732748" updateUser="plazi">
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<mods:title id="98FF9CDD32F40115ADA2F4A4BD482376">New species of Scissurellidae, Anatomidae, and Larocheidae (Mollusca: Gastropoda: Vetigastropoda) from New Zealand and beyond</mods:title>
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<mods:name id="6D34DC69528EE594E83F5678731BA367" type="personal">
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<mods:namePart id="1D89ABE19D60A0D530FA90D83207D034">Geiger, Daniel L.</mods:namePart>
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<mods:namePart id="09015D780D23B754469A44ED27BC0E17">Marshall, Bruce A.</mods:namePart>
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<mods:date id="26D0943B7D664160D9DCDD1603F0744A">2012</mods:date>
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<treatment id="D077A52CA32FFFE9FF18FB67637A1DF2" ID-DOI="http://doi.org/10.5281/zenodo.6166676" ID-GBIF-Taxon="119519082" ID-Zenodo-Dep="6166676" LSID="urn:lsid:zoobank.org:act:C5AD65EF-D6EA-4ACE-9FD2-3104D34961FF" httpUri="http://treatment.plazi.org/id/D077A52CA32FFFE9FF18FB67637A1DF2" lastPageId="10" lastPageNumber="11" pageId="8" pageNumber="9">
<subSubSection id="10C447B1A32FFFEBFF18FB67604C1A5A" pageId="8" pageNumber="9" type="nomenclature">
<paragraph id="5861143AA32FFFEBFF18FB67635F1A7D" blockId="8.[151,539,1265,1324]" box="[151,539,1265,1291]" pageId="8" pageNumber="9">
<heading id="0329A356A32FFFEBFF18FB67635F1A7D" bold="true" box="[151,539,1265,1291]" fontSize="11" level="1" pageId="8" pageNumber="9" reason="1">
<emphasis id="6AAAC828A32FFFEBFF18FB67635F1A7D" bold="true" box="[151,539,1265,1291]" pageId="8" pageNumber="9">
<taxonomicName id="9FDE6FB9A32FFFEBFF18FB6760C01A7D" ID-CoL="4XJXW" box="[151,388,1265,1291]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="platyspira" status="sp. nov.">
<emphasis id="6AAAC828A32FFFEBFF18FB6760C01A7D" bold="true" box="[151,388,1265,1291]" italics="true" pageId="8" pageNumber="9">Sinezona platyspira</emphasis>
</taxonomicName>
<taxonomicNameLabel id="71997553A32FFFEBFE04FB67635F1A7D" box="[395,539,1265,1291]" pageId="8" pageNumber="9" rank="species">new species</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="5861143AA32FFFEBFF18FA82604C1A5A" blockId="8.[151,539,1265,1324]" box="[151,264,1300,1324]" pageId="8" pageNumber="9">
(
<figureCitation id="C0E508BFA32FFFEBFF11FA8261BA1A5A" box="[158,254,1300,1324]" captionStart="FIGURE 7" captionStartId="9.[151,250,1968,1991]" captionTargetBox="[191,1395,203,1946]" captionTargetId="figure@9.[191,1396,203,1947]" captionTargetPageId="9" captionText="FIGURE 7. Sinezona platyspira new species. West Norfolk Ridge, W of Cape Reinga, 34.298 ˚ S, 168.430 ˚ E, 785 800 m A. Holotype. (NMNZ M. 301400). B. Paratype (NMNZ M. 301399). Scale bars shell = 0.5 mm. Scale bars protoconch = 100 µm." httpUri="https://zenodo.org/record/281444/files/figure.png" pageId="8" pageNumber="9">Figure 7</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="10C447B1A32FFFEBFF18FAF7627C1A93" pageId="8" pageNumber="9" type="materials_examined">
<paragraph id="5861143AA32FFFEBFF18FAF760DE1AEB" blockId="8.[151,1437,1376,2013]" pageId="8" pageNumber="9">
<emphasis id="6AAAC828A32FFFEBFF18FAF7600D1A0F" bold="true" box="[151,329,1376,1401]" pageId="8" pageNumber="9">
<typeStatus id="8765AA98A32FFFEBFF18FAF761961A0F" box="[151,210,1377,1401]" pageId="8" pageNumber="9">Type</typeStatus>
material.
</emphasis>
<typeStatus id="8765AA98A32FFFEBFEDAFAF760F91A0F" box="[341,445,1377,1401]" pageId="8" pageNumber="9" type="holotype">Holotype</typeStatus>
(
<collectionCode id="3ECF8CFFA32FFFEBFE5FFAF763601A0F" box="[464,548,1377,1401]" httpUri="http://grbio.org/cool/fg7h-t7tk" name="Museum of New Zealand Te Papa Tongarewa" pageId="8" pageNumber="9">NMNZ</collectionCode>
M.301400:
<figureCitation id="C0E508BFA32FFFEBFD37FAF763BB1A0F" box="[696,767,1377,1401]" captionStart="FIGURE 7" captionStartId="9.[151,250,1968,1991]" captionTargetBox="[191,1395,203,1946]" captionTargetId="figure@9.[191,1396,203,1947]" captionTargetPageId="9" captionText="FIGURE 7. Sinezona platyspira new species. West Norfolk Ridge, W of Cape Reinga, 34.298 ˚ S, 168.430 ˚ E, 785 800 m A. Holotype. (NMNZ M. 301400). B. Paratype (NMNZ M. 301399). Scale bars shell = 0.5 mm. Scale bars protoconch = 100 µm." httpUri="https://zenodo.org/record/281444/files/figure.png" pageId="8" pageNumber="9">Fig. 7</figureCitation>
A). 0.95 ×
<quantity id="9F26B9DFA32FFFEBFC08FAF762A11A0F" box="[903,997,1377,1401]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="8" pageNumber="9" unit="mm" value="0.6">0.6 mm</quantity>
.
<typeStatus id="8765AA98A32FFFEBFC7BFAF465121A0C" box="[1012,1110,1378,1402]" pageId="8" pageNumber="9" type="paratype">Paratype</typeStatus>
from
<typeStatus id="8765AA98A32FFFEBFB2BFAF465901A0C" box="[1188,1236,1378,1402]" pageId="8" pageNumber="9">type</typeStatus>
locality (
<collectionCode id="3ECF8CFFA32FFFEBFAC7FAF764D91A0F" box="[1352,1437,1377,1401]" httpUri="http://grbio.org/cool/fg7h-t7tk" name="Museum of New Zealand Te Papa Tongarewa" pageId="8" pageNumber="9">NMNZ</collectionCode>
M.301399, 1:
<figureCitation id="C0E508BFA32FFFEBFEBAFA13603C1AEB" box="[309,376,1413,1437]" captionStart="FIGURE 7" captionStartId="9.[151,250,1968,1991]" captionTargetBox="[191,1395,203,1946]" captionTargetId="figure@9.[191,1396,203,1947]" captionTargetPageId="9" captionText="FIGURE 7. Sinezona platyspira new species. West Norfolk Ridge, W of Cape Reinga, 34.298 ˚ S, 168.430 ˚ E, 785 800 m A. Holotype. (NMNZ M. 301400). B. Paratype (NMNZ M. 301399). Scale bars shell = 0.5 mm. Scale bars protoconch = 100 µm." httpUri="https://zenodo.org/record/281444/files/figure.png" pageId="8" pageNumber="9">Fig. 7</figureCitation>
B).
</paragraph>
<paragraph id="5861143AA32FFFEBFF48FA3F627C1A93" blockId="8.[151,1437,1376,2013]" pageId="8" pageNumber="9">
<emphasis id="6AAAC828A32FFFEBFF48FA3F60231AB7" bold="true" box="[199,359,1448,1473]" pageId="8" pageNumber="9">
<typeStatus id="8765AA98A32FFFEBFF48FA3F60441AB7" box="[199,256,1449,1473]" pageId="8" pageNumber="9">Type</typeStatus>
locality.
</emphasis>
West
<collectingCountry id="20C954AAA32FFFEBFE3BFA3F63491AB7" box="[436,525,1449,1473]" name="Norfolk Island" pageId="8" pageNumber="9">Norfolk</collectingCountry>
Ridge, W of Cape Reinga,
<collectingCountry id="20C954AAA32FFFEBFCDAFA3C62B51AB7" box="[853,1009,1449,1473]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
, 34.298˚S, 168.430˚E,
<quantity id="9F26B9DFA32FFFEBFB72FA3F643A1AB7" box="[1277,1406,1449,1473]" metricMagnitude="2" metricUnit="m" metricValue="7.925" metricValueMax="8.0" metricValueMin="7.85" pageId="8" pageNumber="9" unit="m" value="792.5" valueMax="800.0" valueMin="785.0">785800 m</quantity>
,
<date id="2C6032FAA32FFFEBFA01FA3F60481A93" pageId="8" pageNumber="9" value="2003-06-02">2 June 2003</date>
, RV
<taxonomicName id="9FDE6FB9A32FFFEBFECCFA5860EA1A93" box="[323,430,1486,1509]" class="Arachnida" family="Uloboridae" genus="Tangaroa" kingdom="Animalia" order="Araneae" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">
<emphasis id="6AAAC828A32FFFEBFECCFA5860EA1A93" box="[323,430,1486,1509]" italics="true" pageId="8" pageNumber="9">Tangaroa</emphasis>
</taxonomicName>
, comminuted coral and bryozoans.
</paragraph>
</subSubSection>
<subSubSection id="10C447B1A32FFFEBFF48FA6765DB197F" box="[199,1183,1521,1545]" pageId="8" pageNumber="9" type="etymology">
<paragraph id="5861143AA32FFFEBFF48FA6765DB197F" blockId="8.[151,1437,1376,2013]" box="[199,1183,1521,1545]" pageId="8" pageNumber="9">
<emphasis id="6AAAC828A32FFFEBFF48FA67600A197F" bold="true" box="[199,334,1521,1545]" pageId="8" pageNumber="9">Etymology.</emphasis>
Platy-, flat, -spira, spire: referring to the flat spire of the species. Adjective.
</paragraph>
</subSubSection>
<subSubSection id="10C447B1A32FFFEBFF48F98360261807" pageId="8" pageNumber="9" type="description">
<paragraph id="5861143AA32FFFEBFF48F9836382183B" blockId="8.[151,1437,1376,2013]" pageId="8" pageNumber="9">
<emphasis id="6AAAC828A32FFFEBFF48F983601D1958" bold="true" box="[199,345,1557,1582]" pageId="8" pageNumber="9">Description.</emphasis>
Shell small (to
<quantity id="9F26B9DFA32FFFEBFD9AF9836338195B" box="[533,636,1557,1581]" metricMagnitude="-4" metricUnit="m" metricValue="9.5" pageId="8" pageNumber="9" unit="mm" value="0.95">0.95 mm</quantity>
.
<figureCitation id="C0E508BFA32FFFEBFD05F9836394195B" box="[650,720,1557,1581]" captionStart="FIGURE 7" captionStartId="9.[151,250,1968,1991]" captionTargetBox="[191,1395,203,1946]" captionTargetId="figure@9.[191,1396,203,1947]" captionTargetPageId="9" captionText="FIGURE 7. Sinezona platyspira new species. West Norfolk Ridge, W of Cape Reinga, 34.298 ˚ S, 168.430 ˚ E, 785 800 m A. Holotype. (NMNZ M. 301400). B. Paratype (NMNZ M. 301399). Scale bars shell = 0.5 mm. Scale bars protoconch = 100 µm." httpUri="https://zenodo.org/record/281444/files/figure.png" pageId="8" pageNumber="9">Fig. 7</figureCitation>
), trochiform depressed. Protoconch 1 whorl, strong axials, no apertural varix, apertural margin convex. Teleoconch I of 0.91.1 whorls, 1226 axial lamellae, interstices with finest growth marks, no spirals. Teleoconch II of 0.6 whorl, suture deeply impressed. Shoulder flat; approximately 1221 axial cords, often restricted to adsutural quarter, in some specimens almost absent; no spirals. Base with distinct constriction below selenizone; on teleoconch I, axial lamellae continuous into umbilicus; on teleoconch II, fewer axial lamellae (approximately 6) fading out towards umbilicus; no spirals. Umbilicus open, deep, cavity produced by rounded portion of previous whorls, underside of protoconch visible, bordered by strong spiral cord. Aperture tilted, D-shaped, roof overhanging. Selenizone above periphery, keels strong, quite elevated; lunules distinct, foramen closed with short anterior raphe.
</paragraph>
<paragraph id="5861143AA32FFFEBFF18F8CF60261807" blockId="8.[151,1437,1376,2013]" box="[151,354,1881,1905]" pageId="8" pageNumber="9">Animal unknown.</paragraph>
</subSubSection>
<subSubSection id="10C447B1A32FFFEBFF48F8EB600118AB" pageId="8" pageNumber="9" type="distribution">
<paragraph id="5861143AA32FFFEBFF48F8EB658718E3" blockId="8.[151,1437,1376,2013]" box="[199,1219,1917,1942]" pageId="8" pageNumber="9">
<emphasis id="6AAAC828A32FFFEBFF48F8EB602418E0" bold="true" box="[199,352,1917,1942]" pageId="8" pageNumber="9">Distribution.</emphasis>
West
<collectingCountry id="20C954AAA32FFFEBFE2AF8EB60BA18E3" box="[421,510,1917,1941]" name="Norfolk Island" pageId="8" pageNumber="9">Norfolk</collectingCountry>
Ridge, W of Cape Reinga, northern
<collectingCountry id="20C954AAA32FFFEBFC16F8E8657618E3" box="[921,1074,1917,1941]" name="New Zealand" pageId="8" pageNumber="9">New Zealand</collectingCountry>
,
<quantity id="9F26B9DFA32FFFEBFBB2F8EB65FB18E3" box="[1085,1215,1917,1941]" metricMagnitude="2" metricUnit="m" metricValue="7.925" metricValueMax="8.0" metricValueMin="7.85" pageId="8" pageNumber="9" unit="m" value="792.5" valueMax="800.0" valueMin="785.0">
785
<specimenCount id="4ED8DFB3A32FFFEBFBF9F8EB65FB18E3" box="[1142,1215,1917,1941]" pageId="8" pageNumber="9" type="generic">800 m</specimenCount>
</quantity>
.
</paragraph>
<paragraph id="5861143AA32FFFEBFF48F836600118AB" blockId="8.[151,1437,1376,2013]" pageId="8" pageNumber="9">
<emphasis id="6AAAC828A32FFFEBFF48F83660EC18CF" bold="true" box="[199,424,1952,1977]" pageId="8" pageNumber="9">Specimen records.</emphasis>
West
<collectingCountry id="20C954AAA32FFFEBFE75F837631718CF" box="[506,595,1953,1977]" name="Norfolk Island" pageId="8" pageNumber="9">Norfolk</collectingCountry>
Ridge, W of Cape Reinga, 34.285˚S, 168.430˚E,
<quantity id="9F26B9DFA32FFFEBFB3BF837647718CF" box="[1204,1331,1953,1977]" metricMagnitude="2" metricUnit="m" metricValue="7.925" metricValueMax="8.0" metricValueMin="7.85" pageId="8" pageNumber="9" unit="m" value="792.5" valueMax="800.0" valueMin="785.0">785800 m</quantity>
(NMNZ M.172128, 31).
</paragraph>
</subSubSection>
<caption id="0CA144B2A32EFFEAFF18F82664CB189F" httpUri="https://zenodo.org/record/281444/files/figure.png" pageId="9" pageNumber="10" targetBox="[191,1395,203,1946]" targetPageId="9">
<paragraph id="5861143AA32EFFEAFF18F82664CB189F" blockId="9.[151,1437,1968,2026]" pageId="9" pageNumber="10">
<emphasis id="6AAAC828A32EFFEAFF18F826605018B0" bold="true" box="[151,276,1968,1991]" pageId="9" pageNumber="10">FIGURE 7.</emphasis>
<taxonomicName id="9FDE6FB9A32EFFEAFE93F82760A318B0" box="[284,487,1968,1990]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="9" pageNumber="10" phylum="Mollusca" rank="species" species="platyspira" status="sp. nov.">
<emphasis id="6AAAC828A32EFFEAFE93F82760A318B0" box="[284,487,1968,1990]" italics="true" pageId="9" pageNumber="10">Sinezona platyspira</emphasis>
</taxonomicName>
<taxonomicNameLabel id="71997553A32EFFEAFE60F827632918B0" box="[495,621,1968,1990]" pageId="9" pageNumber="10" rank="species">new species</taxonomicNameLabel>
. West Norfolk Ridge, W of Cape Reinga, 34.298˚S, 168.430˚E, 785800 m A. Holotype. (NMNZ M.301400). B. Paratype (NMNZ M.301399). Scale bars shell = 0.5 mm. Scale bars protoconch = 100 µm.
</paragraph>
</caption>
<subSubSection id="10C447B1A32DFFE9FF48FF0E637A1DF2" pageId="10" pageNumber="11" type="discussion">
<paragraph id="5861143AA32DFFE9FF48FF0E633A1D61" blockId="10.[151,1436,151,644]" pageId="10" pageNumber="11">
<emphasis id="6AAAC828A32DFFE9FF48FF0E607F1FC6" bold="true" box="[199,315,152,176]" pageId="10" pageNumber="11">Remarks.</emphasis>
<taxonomicName id="9FDE6FB9A32DFFE9FECBFF0E63671FC6" box="[324,547,152,176]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="platyspira">
<emphasis id="6AAAC828A32DFFE9FECBFF0E63671FC6" box="[324,547,152,176]" italics="true" pageId="10" pageNumber="11">Sinezona platyspira</emphasis>
</taxonomicName>
can be distinguished from
<collectingCountry id="20C954AAA32DFFE9FCD3FF0E62B01FD9" box="[860,1012,151,175]" name="New Zealand" pageId="10" pageNumber="11">New Zealand</collectingCountry>
species as follows.
<taxonomicName id="9FDE6FB9A32DFFE9FB55FF0E64D81FC6" box="[1242,1436,152,176]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="bandeli">
<emphasis id="6AAAC828A32DFFE9FB55FF0E64D81FC6" box="[1242,1436,152,176]" italics="true" pageId="10" pageNumber="11">Sinezona bandeli</emphasis>
</taxonomicName>
has a strong constriction on the base below the selenizone, has an umbilicus with straight walls, and the protoconch has an apertural varix.
<taxonomicName id="9FDE6FB9A32DFFE9FE17FF76630D1F8E" box="[408,585,224,248]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="brevis">
<emphasis id="6AAAC828A32DFFE9FE17FF76630D1F8E" box="[408,585,224,248]" italics="true" pageId="10" pageNumber="11">Sinezona brevis</emphasis>
</taxonomicName>
has an umbilicus with straight walls, a much shorter selenizone (0.1 vs. 0.4 whorl), and a more elevated spire.
<taxonomicName id="9FDE6FB9A32DFFE9FD91FE9363F21E6A" box="[542,694,261,284]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="iota">
<emphasis id="6AAAC828A32DFFE9FD91FE9363F21E6A" box="[542,694,261,284]" italics="true" pageId="10" pageNumber="11">Sinezona iota</emphasis>
</taxonomicName>
has a much taller shell with protruding protoconch, the umbilicus has straight walls, and the protoconch has an apertural varix.
<taxonomicName id="9FDE6FB9A32DFFE9FCD8FEBE65581E36" box="[855,1052,296,320]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="laqueus">
<emphasis id="6AAAC828A32DFFE9FCD8FEBE65581E36" box="[855,1052,296,320]" italics="true" pageId="10" pageNumber="11">Sinezona laqueus</emphasis>
</taxonomicName>
has a stronger constriction of the base below the selenizone, the umbilicus has straight walls, and has axial folds as opposed to lamellae.
<taxonomicName id="9FDE6FB9A32DFFE9FAB8FEDB61B51EFE" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="levigata">
<emphasis id="6AAAC828A32DFFE9FAB8FEDB61B51EFE" italics="true" pageId="10" pageNumber="11">Sinezona levigata</emphasis>
</taxonomicName>
has a callus covering the umbilicus, lacks a constriction of the base below the umbilicus, and has no axial lamellae.
<taxonomicName id="9FDE6FB9A32DFFE9FE8BFE0360AD1EDA" box="[260,489,404,428]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="mechanica">
<emphasis id="6AAAC828A32DFFE9FE8BFE0360AD1EDA" box="[260,489,404,428]" italics="true" pageId="10" pageNumber="11">Sinezona mechanica</emphasis>
</taxonomicName>
has an umbilicus with straight walls, about twice as many finer axial cords, and has axial cords over the entire width of the shoulder on teleoconch II.
<taxonomicName id="9FDE6FB9A32DFFE9FCF2FE2E65001EA6" box="[893,1092,440,464]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="pacifica">
<emphasis id="6AAAC828A32DFFE9FCF2FE2E65001EA6" box="[893,1092,440,464]" italics="true" pageId="10" pageNumber="11">Sinezona pacifica</emphasis>
</taxonomicName>
has an umbilicus with straight walls, is overall taller, and has a protoconch with apertural varix.
<taxonomicName id="9FDE6FB9A32DFFE9FCE0FE4B650A1E82" box="[879,1102,477,500]" class="Gastropoda" family="Scissurellidae" genus="Sinezona" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="pauperata">
<emphasis id="6AAAC828A32DFFE9FCE0FE4B650A1E82" box="[879,1102,477,500]" italics="true" pageId="10" pageNumber="11">Sinezona pauperata</emphasis>
</taxonomicName>
lacks a selenizone, has a very narrow umbilicus, and lacks axial lamellae.
</paragraph>
<paragraph id="5861143AA32DFFE9FF48FDB2637A1DF2" blockId="10.[151,1436,151,644]" pageId="10" pageNumber="11">
The subantarctic
<emphasis id="6AAAC828A32DFFE9FE05FDB363121D4A" box="[394,598,548,572]" italics="true" pageId="10" pageNumber="11">
<collectingCountry id="20C954AAA32DFFE9FE05FDB360F51D4A" box="[394,433,549,572]" name="China" pageId="10" pageNumber="11">Sin</collectingCountry>
. subantarctica
</emphasis>
has a callus covering the umbilicus, a very short selenizone (&lt;0.1 whorl), and spiral threads on the lower base.
<taxonomicName id="9FDE6FB9A32DFFE9FDD5FDDE62961D29" authority="Bandel, 1998" authorityName="Bandel" authorityYear="1998" box="[602,978,583,608]" class="Gastropoda" family="Scissurellidae" genus="Satondella" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="10" pageNumber="11" phylum="Mollusca" rank="species" species="minuta">
<emphasis id="6AAAC828A32DFFE9FDD5FDDE62681D16" box="[602,812,584,608]" italics="true" pageId="10" pageNumber="11">Satondella minuta</emphasis>
Bandel, 1998
</taxonomicName>
from the Indo-Pacific has much more elevated keels bordering the foramen.
</paragraph>
</subSubSection>
</treatment>
</document>