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<document id="F8F6297734D598A459B6A0032268E6A1" ID-CLB-Dataset="32762" ID-DOI="10.11646/zootaxa.4286.1.2" ID-GBIF-Dataset="dddc215c-61ae-484e-bc8e-1314354620b2" ID-ISSN="1175-5326" ID-Zenodo-Dep="828294" ID-ZooBank="3B62E1C2-79C6-4A14-9F6D-80D8872118FA" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1500108503344" checkinUser="plazi" docAuthor="Zelaya, Diego G. &amp; Güller, Marina" docDate="2017" docId="03BCFB5FFFCBFFE5FF26FE89377EE8F5" docLanguage="en" docName="zootaxa.4286.1.2.pdf" docOrigin="Zootaxa 4286 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Cirsotrema" docType="treatment" docVersion="8" lastPageNumber="59" masterDocId="FF858327FFDAFFF7FFB1FFEC3539EA70" masterDocTitle="Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic" masterLastPageNumber="69" masterPageNumber="41" pageNumber="58" updateTime="1698465097681" updateUser="ExternalLinkService">
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<mods:title id="E1D54C0187CF4248455FE846B85D2173">Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic</mods:title>
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<mods:namePart id="332FEA09D4DA4E75618085F294F044CB">Zelaya, Diego G.</mods:namePart>
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<treatment id="03BCFB5FFFCBFFE5FF26FE89377EE8F5" ID-DOI="http://doi.org/10.5281/zenodo.6033229" ID-GBIF-Taxon="132548559" ID-Zenodo-Dep="6033229" LSID="urn:lsid:plazi:treatment:03BCFB5FFFCBFFE5FF26FE89377EE8F5" httpUri="http://treatment.plazi.org/id/03BCFB5FFFCBFFE5FF26FE89377EE8F5" lastPageId="18" lastPageNumber="59" pageId="17" pageNumber="58">
<subSubSection id="C30F19C2FFCBFFE6FF26FE89342CEBD0" pageId="17" pageNumber="58" type="nomenclature">
<paragraph id="8BAA4A49FFCBFFE6FF26FE8937A9EB0F" blockId="17.[151,656,357,416]" box="[151,656,357,383]" pageId="17" pageNumber="58">
<heading id="D0E2FD25FFCBFFE6FF26FE8937A9EB0F" bold="true" box="[151,656,357,383]" fontSize="11" level="1" pageId="17" pageNumber="58" reason="1">
<emphasis id="B961965BFFCBFFE6FF26FE8937A9EB0F" bold="true" box="[151,656,357,383]" italics="true" pageId="17" pageNumber="58">
<taxonomicName id="4C1531CAFFCBFFE6FF14FE893414EB0F" ID-CoL="7NSZ5" box="[165,301,357,383]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="17" pageNumber="58" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
” georgeanum nomen novum
</emphasis>
</heading>
</paragraph>
<paragraph id="8BAA4A49FFCBFFE6FF26FE6B342CEBD0" blockId="17.[151,656,357,416]" box="[151,277,391,416]" pageId="17" pageNumber="58">
(
<figureCitation id="132E56CCFFCBFFE6FF2FFE6B3434EBD0" box="[158,269,391,416]" captionStart="FIGURE 10" captionStartId="17.[151,249,1951,1973]" captionTargetBox="[273,1315,638,1935]" captionTargetId="figure@17.[273,1315,638,1935]" captionTargetPageId="17" captionText="FIGURE 10. “ Cirsotrema ” georgeanum new name, shell. A. Syntype of Epitonium fenestratum (SMNH type- 918). B, C. Syntype of Epitonium fenestratum (ZMH 3139). C. Detail of teleoconch sculpture at the suture. Scale bars: A, B = 10 mm; C = 2 mm." httpUri="https://zenodo.org/record/828314/files/figure.png" pageId="17" pageNumber="58">Figure 10</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C30F19C2FFCBFFE6FF26FE3C37C6E874" pageId="17" pageNumber="58" type="reference_group">
<paragraph id="8BAA4A49FFCBFFE6FF26FE3C37C6E874" blockId="17.[151,1332,464,516]" pageId="17" pageNumber="58">
<treatmentCitationGroup id="AB056D67FFCBFFE6FF26FE3C37C6E874" pageId="17" pageNumber="58">
<taxonomicName id="4C1531CAFFCBFFE6FF26FE3C3732EB96" ID-CoL="79SB8" authority="Strebel, 1908: 63" authorityName="Strebel" authorityPageNumber="63" authorityYear="1908" box="[151,523,464,486]" class="Gastropoda" family="Epitoniidae" genus="Scalaria" higherTaxonomySource="CoL" kingdom="Animalia" pageId="17" pageNumber="58" phylum="Mollusca" rank="species" species="fenestrata">
<emphasis id="B961965BFFCBFFE6FF26FE3C3461EB96" box="[151,344,464,486]" italics="true" pageId="17" pageNumber="58">Scalaria fenestrata</emphasis>
<treatmentCitation id="0AB46C58FFCBFFE6FEEFFE3C3732EB96" author="Strebel" box="[350,523,464,486]" page="63" pageId="17" pageNumber="58" year="1908">
<bibRefCitation id="EF8437B8FFCBFFE6FEEFFE3C34D0EB96" author="Strebel" box="[350,489,464,486]" pageId="17" pageNumber="58" refString="Strebel, H. (1908) Die Gastropoden. Wissenschaftliche Ergebnisse der Schwedischen Sudpolar-Expedition, 1901 - 1903 unter Leitung von Dr Otto Nordenskjold, 6 (1), 1 - 112, pls. 1 - 6." type="journal article" year="1908">Strebel, 1908</bibRefCitation>
: 63
</treatmentCitation>
</taxonomicName>
64, pl. 4, fig. 61ad (
<emphasis id="B961965BFFCBFFE6FD5CFE3D362AEB96" box="[749,787,465,486]" italics="true" pageId="17" pageNumber="58">non</emphasis>
Meneghini in de Stefani, 1875 nor Wöhrmann, 1889)
<taxonomicName id="4C1531CAFFCBFFE6FF26FE033704E874" ID-CoL="79SB8" authority="Powell, 1951: 114" authorityName="Powell" authorityPageNumber="114" authorityYear="1951" box="[151,573,494,516]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="17" pageNumber="58" phylum="Mollusca" rank="species" species="fenestrata">
<emphasis id="B961965BFFCBFFE6FF26FE03344DE874" box="[151,372,494,516]" italics="true" pageId="17" pageNumber="58">Cirsotrema fenestrata</emphasis>
:
<treatmentCitation id="0AB46C58FFCBFFE6FE33FE023704E874" author="Powell" box="[386,573,494,516]" page="114" pageId="17" pageNumber="58" year="1951">
<bibRefCitation id="EF8437B8FFCBFFE6FE33FE023732E874" author="Powell" box="[386,523,494,516]" pageId="17" pageNumber="58" refString="Powell, A. W. B. (1951) Antarctic and subantarctic Mollusca: Pelecypoda and Gastropoda. Discovery Reports, 26, 47 - 196. https: // doi. org / 10.5962 / bhl. part. 16335" type="journal article" year="1951">Powell, 1951</bibRefCitation>
: 114
</treatmentCitation>
</taxonomicName>
;
<treatmentCitation id="0AB46C58FFCBFFE6FDF6FE0237C6E874" author="Zelaya" box="[583,767,494,516]" page="121" pageId="17" pageNumber="58" year="2005">
<bibRefCitation id="EF8437B8FFCBFFE6FDF6FE0237F6E874" author="Zelaya" box="[583,719,494,516]" pageId="17" pageNumber="58" refString="Zelaya, D. G. (2005) Systematics and biogeography of marine gastropod molluscs from South Georgia. Spixiana, 28, 109 - 139." type="journal article" year="2005">Zelaya, 2005</bibRefCitation>
: 121
</treatmentCitation>
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</paragraph>
</subSubSection>
<subSubSection id="C30F19C2FFCBFFE5FF26FDDD3603EA88" lastPageId="18" lastPageNumber="59" pageId="17" pageNumber="58" type="materials_examined">
<paragraph id="8BAA4A49FFCBFFE6FF26FDDD3128E839" blockId="17.[151,1041,561,586]" box="[151,1041,561,586]" pageId="17" pageNumber="58">
<materialsCitation id="3B7D4014FFCBFFE6FF26FDDD3128E839" ID-GBIF-Occurrence="1572324863" box="[151,1041,561,586]" country="South Georgia and the South Sandwich Islands" elevation="281" latitude="-54.183334" location="Cumberland Bay" longLatPrecision="1072" longitude="-36.3" pageId="17" pageNumber="58" specimenCount="1" typeStatus="holotype">
<emphasis id="B961965BFFCBFFE6FF26FDDD340CE83A" bold="true" box="[151,309,561,586]" pageId="17" pageNumber="58">
<typeStatus id="54AEF4EBFFCBFFE6FF26FDDD35EBE83A" box="[151,210,561,586]" pageId="17" pageNumber="58">Type</typeStatus>
locality.
</emphasis>
<geoCoordinate id="EE212C8EFFCBFFE6FE8DFDDD34A7E839" box="[316,414,561,586]" direction="south" orientation="latitude" pageId="17" pageNumber="58" precision="925" value="-54.183334">54°11 S</geoCoordinate>
<geoCoordinate id="EE212C8EFFCBFFE6FE14FDDD3735E83A" box="[421,524,561,586]" direction="west" orientation="longitude" pageId="17" pageNumber="58" precision="925" value="-36.3">36°18W</geoCoordinate>
,
<location id="8ECA1C92FFCBFFE6FDA6FDDD37EEE83A" LSID="urn:lsid:plazi:treatment:03BCFB5FFFCBFFE5FF26FE89377EE8F5:8ECA1C92FFCBFFE6FDA6FDDD37EEE83A" box="[535,727,561,586]" country="South Georgia and the South Sandwich Islands" latitude="-54.183334" longLatPrecision="1072" longitude="-36.3" name="Cumberland Bay" pageId="17" pageNumber="58">Cumberland Bay</location>
,
<collectingCountry id="F3020AD9FFCBFFE6FD53FDDD36BDE83A" box="[738,900,561,586]" name="South Georgia and the South Sandwich Islands" pageId="17" pageNumber="58">South Georgia</collectingCountry>
<elevation id="0038AD7AFFCBFFE6FC3AFDDD3134E839" box="[907,1037,561,586]" metricMagnitude="2" metricUnit="m" metricValue="2.81" metricValueMax="3.1" metricValueMin="2.52" pageId="17" pageNumber="58" unit="m" value="281.0" valueMax="310.0" valueMin="252.0">
<quantity id="4CEDE7ACFFCBFFE6FC3AFDDD3134E839" box="[907,1037,561,586]" metricMagnitude="2" metricUnit="m" metricValue="2.81" metricValueMax="3.1" metricValueMin="2.52" pageId="17" pageNumber="58" unit="m" value="281.0" valueMax="310.0" valueMin="252.0">252310 m</quantity>
</elevation>
.
</materialsCitation>
</paragraph>
<caption id="DF6A1AC1FFCBFFE6FF26F87335E0ED83" httpUri="https://zenodo.org/record/828314/files/figure.png" pageId="17" pageNumber="58" targetBox="[273,1315,638,1935]" targetPageId="17">
<paragraph id="8BAA4A49FFCBFFE6FF26F87335E0ED83" blockId="17.[151,1436,1951,2035]" pageId="17" pageNumber="58">
<emphasis id="B961965BFFCBFFE6FF26F873341BEDC4" bold="true" box="[151,290,1951,1973]" pageId="17" pageNumber="58">FIGURE 10.</emphasis>
<emphasis id="B961965BFFCBFFE6FE9DF84C377BEDC6" box="[300,578,1952,1974]" italics="true" pageId="17" pageNumber="58">
<taxonomicName id="4C1531CAFFCBFFE6FE82F84C348BEDC5" box="[307,434,1952,1973]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="17" pageNumber="58" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
” georgeanum
</emphasis>
new name, shell. A. Syntype of
<taxonomicName id="4C1531CAFFCBFFE6FC13F84D31B5EDC5" box="[930,1164,1951,1974]" class="Gastropoda" family="Epitoniidae" genus="Epitonium" higherTaxonomySource="CoL" kingdom="Animalia" order="Architaenioglossa" pageId="17" pageNumber="58" phylum="Mollusca" rank="species" species="fenestratum">
<emphasis id="B961965BFFCBFFE6FC13F84D31B5EDC5" box="[930,1164,1951,1974]" italics="true" pageId="17" pageNumber="58">Epitonium fenestratum</emphasis>
</taxonomicName>
(SMNH type-918). B, C. Syntype of
<taxonomicName id="4C1531CAFFCBFFE6FEBAF85334CAEDA4" box="[267,499,1982,2004]" class="Gastropoda" family="Epitoniidae" genus="Epitonium" higherTaxonomySource="CoL" kingdom="Animalia" order="Architaenioglossa" pageId="17" pageNumber="58" phylum="Mollusca" rank="species" species="fenestratum">
<emphasis id="B961965BFFCBFFE6FEBAF85334CAEDA4" box="[267,499,1982,2004]" italics="true" pageId="17" pageNumber="58">Epitonium fenestratum</emphasis>
</taxonomicName>
(ZMH 3139). C. Detail of teleoconch sculpture at the suture. Scale bars: A, B = 10 mm; C = 2 mm.
</paragraph>
</caption>
<paragraph id="8BAA4A49FFC8FFE5FF76FF7B35CFEAA4" blockId="18.[151,1437,151,645]" pageId="18" pageNumber="59">
<emphasis id="B961965BFFC8FFE5FF76FF7B344DEAC0" bold="true" box="[199,372,151,176]" pageId="18" pageNumber="59">Type material.</emphasis>
Two syntypes (one syntype at SMNH type-918:
<figureCitation id="132E56CCFFC8FFE5FC22FF7B36DAEAC0" box="[915,995,151,176]" captionStart="FIGURE 10" captionStartId="17.[151,249,1951,1973]" captionTargetBox="[273,1315,638,1935]" captionTargetId="figure@17.[273,1315,638,1935]" captionTargetPageId="17" captionText="FIGURE 10. “ Cirsotrema ” georgeanum new name, shell. A. Syntype of Epitonium fenestratum (SMNH type- 918). B, C. Syntype of Epitonium fenestratum (ZMH 3139). C. Detail of teleoconch sculpture at the suture. Scale bars: A, B = 10 mm; C = 2 mm." httpUri="https://zenodo.org/record/828314/files/figure.png" pageId="18" pageNumber="59">Fig. 10</figureCitation>
A; the other syntype at ZMH 3139:
<figureCitation id="132E56CCFFC8FFE5FAC1FF7B358DEAA4" captionStart="FIGURE 10" captionStartId="17.[151,249,1951,1973]" captionTargetBox="[273,1315,638,1935]" captionTargetId="figure@17.[273,1315,638,1935]" captionTargetPageId="17" captionText="FIGURE 10. “ Cirsotrema ” georgeanum new name, shell. A. Syntype of Epitonium fenestratum (SMNH type- 918). B, C. Syntype of Epitonium fenestratum (ZMH 3139). C. Detail of teleoconch sculpture at the suture. Scale bars: A, B = 10 mm; C = 2 mm." httpUri="https://zenodo.org/record/828314/files/figure.png" pageId="18" pageNumber="59">Fig. 10</figureCitation>
B, C).
</paragraph>
<paragraph id="8BAA4A49FFC8FFE5FF76FF333603EA88" blockId="18.[151,1437,151,645]" box="[199,826,223,248]" pageId="18" pageNumber="59">
<emphasis id="B961965BFFC8FFE5FF76FF333483EA88" bold="true" box="[199,442,223,248]" pageId="18" pageNumber="59">Known distribution.</emphasis>
Only known from South Georgia.
</paragraph>
</subSubSection>
<subSubSection id="C30F19C2FFC8FFE5FF76FEE83641EB6C" box="[199,888,260,285]" pageId="18" pageNumber="59" type="etymology">
<paragraph id="8BAA4A49FFC8FFE5FF76FEE83641EB6C" blockId="18.[151,1437,151,645]" box="[199,888,260,285]" pageId="18" pageNumber="59">
<emphasis id="B961965BFFC8FFE5FF76FEE83477EB6D" bold="true" box="[199,334,260,285]" pageId="18" pageNumber="59">Etymology.</emphasis>
The name of the species refers to its provenance.
</paragraph>
</subSubSection>
<subSubSection id="C30F19C2FFC8FFE5FF76FECB377EE8F5" pageId="18" pageNumber="59" type="discussion">
<paragraph id="8BAA4A49FFC8FFE5FF76FECB3143EBF8" blockId="18.[151,1437,151,645]" pageId="18" pageNumber="59">
<emphasis id="B961965BFFC8FFE5FF76FECB3402EB30" bold="true" box="[199,315,295,320]" pageId="18" pageNumber="59">Remarks.</emphasis>
<taxonomicName id="4C1531CAFFC8FFE5FEF4FEC437F8EB30" authority="Strebel, 1908" authorityName="Strebel" authorityYear="1908" box="[325,705,295,320]" class="Gastropoda" family="Epitoniidae" genus="Scalaria" higherTaxonomySource="CoL" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="species" species="fenestrata">
<emphasis id="B961965BFFC8FFE5FEF4FEC43727EB30" box="[325,542,296,320]" italics="true" pageId="18" pageNumber="59">Scalaria fenestrata</emphasis>
<bibRefCitation id="EF8437B8FFC8FFE5FD99FECB37F8EB30" author="Strebel" box="[552,705,295,320]" pageId="18" pageNumber="59" refString="Strebel, H. (1908) Die Gastropoden. Wissenschaftliche Ergebnisse der Schwedischen Sudpolar-Expedition, 1901 - 1903 unter Leitung von Dr Otto Nordenskjold, 6 (1), 1 - 112, pls. 1 - 6." type="journal article" year="1908">Strebel, 1908</bibRefCitation>
</taxonomicName>
appears at present as a junior (primary) homonym of
<taxonomicName id="4C1531CAFFC8FFE5FA8CFEC437ACEB15" authority="Meneghini in de Stefani, 1875" authorityName="Meneghini in de Stefani" authorityYear="1875" class="Gastropoda" family="Epitoniidae" genus="Scalaria" higherTaxonomySource="CoL" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="species" species="fenestrata">
<emphasis id="B961965BFFC8FFE5FA8CFEC4343EEB14" italics="true" pageId="18" pageNumber="59">Scalaria fenestrata</emphasis>
Meneghini in de Stefani, 1875
</taxonomicName>
and
<taxonomicName id="4C1531CAFFC8FFE5FD6EFEA0319BEB14" authority="Wohrmann, 1889" authorityName="Wohrmann" authorityYear="1889" box="[735,1186,332,357]" class="Gastropoda" family="Epitoniidae" genus="Scalaria" higherTaxonomySource="CoL" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="species" species="fenestrata">
<emphasis id="B961965BFFC8FFE5FD6EFEA03686EB14" box="[735,959,332,356]" italics="true" pageId="18" pageNumber="59">Scalaria fenestrata</emphasis>
Wöhrmann, 1889
</taxonomicName>
. Due to the above,
<emphasis id="B961965BFFC8FFE5FF26FE9C34FEEBF8" box="[151,455,368,392]" italics="true" pageId="18" pageNumber="59">
<taxonomicName id="4C1531CAFFC8FFE5FF2EFE9C3414EBF7" box="[159,301,368,391]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
” georgeanum
</emphasis>
is here proposed as a replacement name for Strebels species.
</paragraph>
<paragraph id="8BAA4A49FFC8FFE5FF76FE79377EE8F5" blockId="18.[151,1437,151,645]" pageId="18" pageNumber="59">
In shell morphology,
<emphasis id="B961965BFFC8FFE5FE0CFE7837C9EBDC" box="[445,752,404,428]" italics="true" pageId="18" pageNumber="59">
<taxonomicName id="4C1531CAFFC8FFE5FE74FE78376AEBDB" box="[453,595,404,427]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
” georgeanum
</emphasis>
resembles
<emphasis id="B961965BFFC8FFE5FCC2FE783180EBDC" box="[883,1209,404,428]" italics="true" pageId="18" pageNumber="59">
<taxonomicName id="4C1531CAFFC8FFE5FCCAFE783130EBDB" box="[891,1033,404,427]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
<taxonomicName id="4C1531CAFFC8FFE5FBABFE783180EBDC" box="[1050,1209,404,428]" class="Gastropoda" family="Epitoniidae" genus="Epitonium" higherTaxonomySource="CoL" kingdom="Animalia" order="Architaenioglossa" pageId="18" pageNumber="59" phylum="Mollusca" rank="species" species="magellanicum">magellanicum</taxonomicName>
</emphasis>
; both species reach large sizes, and are sculptured with widely separated, lamellate axial ribs, with low but strong spiral elements in the interspaces of axial sculpture, and with a prominent spiral cord at the base. In fact,
<bibRefCitation id="EF8437B8FFC8FFE5FBCAFE3130A5EB85" author="Brown" box="[1147,1436,476,501]" pageId="18" pageNumber="59" refString="Brown, L. G. &amp; Neville, B. D. (2015) Catalog of the Recent taxa of the families Epitoniidae and Nystiellidae (Mollusca: Gastropoda) with a bibliography of the descriptive and systematic literature. Zootaxa, 3907 (1), 1 - 188. https: // doi. org / 10.11646 / zootaxa. 3907.1.1" type="journal article" year="2015">Brown &amp; Neville (2015)</bibRefCitation>
suggested that both are probably synonyms. However,
<emphasis id="B961965BFFC8FFE5FC95FDEC3160E868" box="[804,1113,512,536]" italics="true" pageId="18" pageNumber="59">
<taxonomicName id="4C1531CAFFC8FFE5FC9DFDEC3683E867" box="[812,954,512,535]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
” georgeanum
</emphasis>
differs from
<emphasis id="B961965BFFC8FFE5FB4FFDEC340FE84C" italics="true" pageId="18" pageNumber="59">
<taxonomicName id="4C1531CAFFC8FFE5FAB7FDEC30ADE867" box="[1286,1428,512,535]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
<taxonomicName id="4C1531CAFFC8FFE5FF26FDC8340FE84C" box="[151,310,548,572]" class="Gastropoda" family="Epitoniidae" genus="Epitonium" higherTaxonomySource="CoL" kingdom="Animalia" order="Architaenioglossa" pageId="18" pageNumber="59" phylum="Mollusca" rank="species" species="magellanicum">magellanicum</taxonomicName>
</emphasis>
by being slender, with whorls separated by a deeper suture, axial ribs with prominent coronations, and by lacking the auriculate peristome that is present in
<emphasis id="B961965BFFC8FFE5FC80FDA4314EE810" box="[817,1143,584,608]" italics="true" pageId="18" pageNumber="59">
<taxonomicName id="4C1531CAFFC8FFE5FC88FDA436FEE82F" box="[825,967,584,607]" class="Gastropoda" family="Epitoniidae" genus="Cirsotrema" kingdom="Animalia" pageId="18" pageNumber="59" phylum="Mollusca" rank="genus">Cirsotrema</taxonomicName>
<taxonomicName id="4C1531CAFFC8FFE5FC69FDA4314EE810" box="[984,1143,584,608]" class="Gastropoda" family="Epitoniidae" genus="Epitonium" higherTaxonomySource="CoL" kingdom="Animalia" order="Architaenioglossa" pageId="18" pageNumber="59" phylum="Mollusca" rank="species" species="magellanicum">magellanicum</taxonomicName>
</emphasis>
. Given these differences, both taxa are here regarded as distinct.
</paragraph>
</subSubSection>
</treatment>
</document>