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<document id="80894EC9F11D27C147F68E9FE2C5A879" ID="10.11646/zootaxa.4179.3.1" ID-DOI="10.11646/zootaxa.4179.3.1" ID-GBIF-Dataset="2509c232-3055-41e8-a304-d5d62ac3bb8c" ID-ISSN="1175-5326" ID-Zenodo-Dep="256431" ID-ZooBank="4E28347A-B0C4-4CF5-ACA4-0E9A6EAF930F" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1477984919727" checkinUser="plazi" docAuthor="Pastorino, Guido" docDate="2016" docId="BA7387ADFF96362CFF125B5CFD23F999" docLanguage="en" docName="zootaxa.4179.3.1.pdf" docOrigin="Zootaxa 4179 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Argeneuthria euthrioides Melvill &amp; Standen 1898, new comb." docType="treatment" docVersion="11" lastPageNumber="332" masterDocId="464AFFD5FF8B3633FF855D29FFA4FFAC" masterDocTitle="Revision of the genera Pareuthria Strebel, 1905, Glypteuthria Strebel, 1905 and Meteuthria Thiele, 1912 (Gastropoda: Buccinulidae) with the description of three new genera and two new species from Southwestern Atlantic waters" masterLastPageNumber="344" masterPageNumber="301" pageNumber="330" updateTime="1698391434060" updateUser="plazi">
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<mods:title id="86CEA6435C6B55347D18EAEB2F544F70">Revision of the genera Pareuthria Strebel, 1905, Glypteuthria Strebel, 1905 and Meteuthria Thiele, 1912 (Gastropoda: Buccinulidae) with the description of three new genera and two new species from Southwestern Atlantic waters</mods:title>
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<mods:namePart id="B2BCC9AF0389FEB34615D0F60A134072">Pastorino, Guido</mods:namePart>
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<mods:title id="7D7938210836779A8F0AB8AC7C99AAAB">Zootaxa</mods:title>
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<mods:date id="2828FE87490143A555FFED03B43F2A46">2016</mods:date>
<mods:detail id="ADC5417514000D9AE6CC3E5EB1F83CE6" type="volume">
<mods:number id="0630353D1DF15400A837E6B874DDC59A">4179</mods:number>
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<treatment id="BA7387ADFF96362CFF125B5CFD23F999" ID-DOI="http://doi.org/10.5281/zenodo.5662407" ID-GBIF-Taxon="124560814" ID-Zenodo-Dep="5662407" LSID="urn:lsid:plazi:treatment:BA7387ADFF96362CFF125B5CFD23F999" httpUri="http://treatment.plazi.org/id/BA7387ADFF96362CFF125B5CFD23F999" lastPageId="31" lastPageNumber="332" pageId="29" pageNumber="330">
<subSubSection id="7AC06530FF96362EFF125B5CFE3EF91C" pageId="29" pageNumber="330" type="nomenclature">
<paragraph id="326536BBFF96362EFF125B5CFC39F923" blockId="29.[151,925,1653,1713]" box="[151,925,1653,1679]" pageId="29" pageNumber="330">
<heading id="692D81D7FF96362EFF125B5CFC39F923" bold="true" box="[151,925,1653,1679]" fontSize="11" level="1" pageId="29" pageNumber="330" reason="1">
<emphasis id="00AEEAA9FF96362EFF125B5CFC39F923" bold="true" box="[151,925,1653,1679]" pageId="29" pageNumber="330">
<taxonomicName id="F5DA4D38FF96362EFF125B5CFCB4F923" authority="Melvill &amp; Standen, 1898" authorityName="Melvill &amp; Standen" authorityYear="1898" box="[151,784,1653,1679]" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="29" pageNumber="330" phylum="Mollusca" rank="species" species="euthrioides" status="comb. nov.">
<emphasis id="00AEEAA9FF96362EFF125B5CFE6CF923" bold="true" box="[151,456,1653,1679]" italics="true" pageId="29" pageNumber="330">Argeneuthria euthrioides</emphasis>
(
<bibRefCitation id="564B4B4AFF96362EFE525B5CFCACF923" author="Melvill" box="[471,776,1653,1679]" pageId="29" pageNumber="330" refString="Melvill, C. J. &amp; Standen, R. (1898) Notes on a collection of marine shells from Lively Island, Falklands, with list of species. Journal of Conchology, 9, 97 - 105." type="journal article" year="1898">Melvill &amp; Standen, 1898</bibRefCitation>
)
</taxonomicName>
<taxonomicNameLabel id="1B9D57D2FF96362EFC9D5B5CFC39F923" box="[792,925,1653,1679]" pageId="29" pageNumber="330">new comb.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="326536BBFF96362EFF125BB1FE3EF91C" blockId="29.[151,925,1653,1713]" box="[151,410,1688,1713]" pageId="29" pageNumber="330">
<figureCitation id="AAE12A3EFF96362EFF125BB1FEA8F91C" box="[151,268,1688,1713]" captionStart="FIGURE 21" captionStartId="30.[151,250,1940,1962]" captionTargetBox="[151,1435,445,1918]" captionTargetId="figure@30.[151,1436,445,1919]" captionTargetPageId="30" captionText="FIGURE 21. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – I. Lachesis euthrioides Melvill &amp; Standen; A – C: Lectotype, Shallow Bay, Lively Island, EE. 7750; D – F and G – I: two paralectotypes, EE. 7751. J – K. MACN-In 40507, Ushuaia. L – M. MACN-In 40507, Ushuaia, Scale bar = 3 mm. O – P. Two views of the protoconch, scale bar = 500 µm," httpUri="https://zenodo.org/record/256452/files/figure.png" pageId="29" pageNumber="330">Figures 21</figureCitation>
A–P, 22A–E
</paragraph>
</subSubSection>
<subSubSection id="7AC06530FF96362EFF125BC9FCF4F8B8" pageId="29" pageNumber="330" type="reference_group">
<paragraph id="326536BBFF96362EFF125BC9FCB6F95A" blockId="29.[151,848,1760,1813]" box="[151,786,1760,1782]" pageId="29" pageNumber="330">
<treatmentCitationGroup id="12CA1195FF96362EFF125BC9FCB6F95A" box="[151,786,1760,1782]" pageId="29" pageNumber="330">
<taxonomicName id="F5DA4D38FF96362EFF125BC9FD35F95A" authority="Melvill &amp; Standen, 1898: 98" authorityName="Melvill &amp; Standen" authorityPageNumber="98" authorityYear="1898" box="[151,657,1760,1782]" class="Reptilia" family="Viperidae" genus="Lachesis" kingdom="Animalia" order="Squamata" pageId="29" pageNumber="330" phylum="Chordata" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF96362EFF125BC9FECCF95A" box="[151,360,1760,1782]" italics="true" pageId="29" pageNumber="330">Lachesis euthrioides</emphasis>
<treatmentCitation id="B37B10AAFF96362EFEEB5BC9FD35F95A" author="Melvill" box="[366,657,1760,1782]" page="98" pageId="29" pageNumber="330" year="1898">
<bibRefCitation id="564B4B4AFF96362EFEEB5BC9FDC9F95A" author="Melvill" box="[366,621,1760,1782]" pageId="29" pageNumber="330" refString="Melvill, C. J. &amp; Standen, R. (1898) Notes on a collection of marine shells from Lively Island, Falklands, with list of species. Journal of Conchology, 9, 97 - 105." type="journal article" year="1898">Melvill &amp; Standen, 1898</bibRefCitation>
: 98
</treatmentCitation>
</taxonomicName>
, pl. 1, fig. 9.
</treatmentCitationGroup>
</paragraph>
<paragraph id="326536BBFF96362EFF125BD7FCF4F8B8" blockId="29.[151,848,1760,1813]" box="[151,848,1790,1813]" pageId="29" pageNumber="330">
<treatmentCitationGroup id="12CA1195FF96362EFF125BD7FCF4F8B8" box="[151,848,1790,1813]" pageId="29" pageNumber="330">
<taxonomicName id="F5DA4D38FF96362EFF125BD7FD3AF8B8" authority="Strebel. Castellanos, 1992: 20" authorityName="Strebel. Castellanos" authorityPageNumber="20" authorityYear="1992" box="[151,670,1790,1813]" class="Gastropoda" family="Buccinidae" genus="Meteuthria" kingdom="Animalia" order="Neogastropoda" pageId="29" pageNumber="330" phylum="Mollusca" rank="species" species="martensi">
<emphasis id="00AEEAA9FF96362EFF125BD7FEC2F8B9" box="[151,358,1790,1813]" italics="true" pageId="29" pageNumber="330">Meteuthria martensi</emphasis>
Strebel.
<treatmentCitation id="B37B10AAFF96362EFE455BD7FD3AF8B8" author="Castellanos" box="[448,670,1790,1812]" page="20" pageId="29" pageNumber="330" year="1992">
<bibRefCitation id="564B4B4AFF96362EFE455BD7FDDCF8B8" author="Castellanos" box="[448,632,1790,1812]" pageId="29" pageNumber="330" refString="Castellanos, Z. J. A. de (1992) Catalogo descriptivo de la malacofauna marina magallanica 7. Neogastropoda Columbellidae = Pyrenidae, Cominellidae y Fasciolariidae. Comision de Investigaciones Cientificas de la Provincia de Buenos Aires, La Plata, 41 pp." type="book" year="1992">Castellanos, 1992</bibRefCitation>
: 20
</treatmentCitation>
</taxonomicName>
, pl. 1, fig. 7 only.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="7AC06530FF96362EFF125A68FACBF80E" pageId="29" pageNumber="330" type="materials_examined">
<paragraph id="326536BBFF96362EFF125A68FACBF80E" blockId="29.[151,1437,1857,2033]" pageId="29" pageNumber="330">
<materialsCitation id="82B23CE6FF96362EFF125A68FACBF80E" ID-GBIF-Occurrence="1324404794" collectionCode="ICZN" country="Iceland" location="Figs" municipality="Shallow Bay" pageId="29" pageNumber="330" specimenCount="3" stateProvince="Manchester" typeStatus="lectotype">
<emphasis id="00AEEAA9FF96362EFF125A68FEE0F8F6" bold="true" box="[151,324,1857,1882]" pageId="29" pageNumber="330">
<typeStatus id="ED618819FF96362EFF125A68FF76F8F6" box="[151,210,1857,1882]" pageId="29" pageNumber="330">Type</typeStatus>
material.
</emphasis>
<specimenCount id="24DCFD32FF96362EFECF5A6BFE65F8F6" box="[330,449,1858,1882]" pageId="29" pageNumber="330" type="generic" typeStatus="syntypes">3 syntypes</specimenCount>
from
<collectingMunicipality id="D201ACC1FF96362EFD815A68FD30F8F6" box="[516,660,1857,1882]" pageId="29" pageNumber="330">Shallow Bay</collectingMunicipality>
, Lively
<collectingCountry id="4ACD762BFF96362EFD6A5A68FC97F8F6" box="[751,819,1857,1882]" name="Iceland" pageId="29" pageNumber="330">Island</collectingCountry>
are deposited at the
<collectingRegion id="F01EF859FF96362EFB925A68FB3EF8F6" box="[1047,1178,1857,1882]" country="United Kingdom" name="Manchester" pageId="29" pageNumber="330">Manchester</collectingRegion>
Museum. One of these specimens, EE.7750, illustrated here in
<figureCitation id="AAE12A3EFF96362EFDE15A4CFD1DF8D2" box="[612,697,1893,1918]" captionStart="FIGURE 21" captionStartId="30.[151,250,1940,1962]" captionTargetBox="[151,1435,445,1918]" captionTargetId="figure@30.[151,1436,445,1919]" captionTargetPageId="30" captionText="FIGURE 21. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – I. Lachesis euthrioides Melvill &amp; Standen; A – C: Lectotype, Shallow Bay, Lively Island, EE. 7750; D – F and G – I: two paralectotypes, EE. 7751. J – K. MACN-In 40507, Ushuaia. L – M. MACN-In 40507, Ushuaia, Scale bar = 3 mm. O – P. Two views of the protoconch, scale bar = 500 µm," httpUri="https://zenodo.org/record/256452/files/figure.png" pageId="29" pageNumber="330">
<location id="37056060FF96362EFDE15A4CFD30F8D2" LSID="urn:lsid:plazi:treatment:BA7387ADFF96362CFF125B5CFD23F999:37056060FF96362EFDE15A4CFD30F8D2" box="[612,660,1893,1918]" country="Iceland" municipality="Shallow Bay" name="Figs" pageId="29" pageNumber="330" stateProvince="Manchester">Figs</location>
21
</figureCitation>
A–C, is designated as
<typeStatus id="ED618819FF96362EFC445A4CFB83F8D2" box="[961,1063,1893,1918]" pageId="29" pageNumber="330" type="lectotype">lectotype</typeStatus>
in order to preserve stability of nomenclature in agreement with
<collectionCode id="54CBAE7EFF96362EFD825AA3FDECF80E" box="[519,584,1930,1954]" pageId="29" pageNumber="330">ICZN</collectionCode>
article 74; and 2 others are
<typeStatus id="ED618819FF96362EFC055AA0FB81F80E" box="[896,1061,1929,1954]" pageId="29" pageNumber="330" type="paralectotype">paralectotypes</typeStatus>
, EE.7751 (
<figureCitation id="AAE12A3EFF96362EFB255AA0FB57F80E" box="[1184,1267,1929,1954]" captionStart="FIGURE 21" captionStartId="30.[151,250,1940,1962]" captionTargetBox="[151,1435,445,1918]" captionTargetId="figure@30.[151,1436,445,1919]" captionTargetPageId="30" captionText="FIGURE 21. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – I. Lachesis euthrioides Melvill &amp; Standen; A – C: Lectotype, Shallow Bay, Lively Island, EE. 7750; D – F and G – I: two paralectotypes, EE. 7751. J – K. MACN-In 40507, Ushuaia. L – M. MACN-In 40507, Ushuaia, Scale bar = 3 mm. O – P. Two views of the protoconch, scale bar = 500 µm," httpUri="https://zenodo.org/record/256452/files/figure.png" pageId="29" pageNumber="330">Figs 21</figureCitation>
D–F, G–I).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="7AC06530FF96362DFF425A84FCB6FE24" lastPageId="30" lastPageNumber="331" pageId="29" pageNumber="330" type="description">
<paragraph id="326536BBFF96362DFF425A84FDA2FEB1" blockId="29.[151,1437,1857,2033]" lastBlockId="30.[151,1436,151,392]" lastPageId="30" lastPageNumber="331" pageId="29" pageNumber="330">
<emphasis id="00AEEAA9FF96362EFF425A84FEFDF86A" bold="true" box="[199,345,1965,1990]" pageId="29" pageNumber="330">Description.</emphasis>
Shell small, less than
<quantity id="F5229B5EFF96362EFDDC5A87FD0EF869" box="[601,682,1966,1990]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="29" pageNumber="330" unit="mm" value="10.0">10 mm</quantity>
in height, fusiform, red, brownish, bright, outside and inside, of 6 slightly convex, distinct whorls; protoconch of 2 1/2 convex whorls (
<figureCitation id="AAE12A3EFF96362EFC2E5AFDFBA1F841" box="[939,1029,2004,2029]" captionStart="FIGURE 21" captionStartId="30.[151,250,1940,1962]" captionTargetBox="[151,1435,445,1918]" captionTargetId="figure@30.[151,1436,445,1919]" captionTargetPageId="30" captionText="FIGURE 21. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – I. Lachesis euthrioides Melvill &amp; Standen; A – C: Lectotype, Shallow Bay, Lively Island, EE. 7750; D – F and G – I: two paralectotypes, EE. 7751. J – K. MACN-In 40507, Ushuaia. L – M. MACN-In 40507, Ushuaia, Scale bar = 3 mm. O – P. Two views of the protoconch, scale bar = 500 µm," httpUri="https://zenodo.org/record/256452/files/figure.png" pageId="29" pageNumber="330">Figs 21</figureCitation>
O, P), translucent, entirely smooth, transition to teleoconch only signalled by onset of spiral ornamentation; suture impressed, somewhat channelled; aperture oval, siphonal canal deep, oblique and short; parietal callus very thin; spiral ornamentation of thick threads,
<quantity id="F5229B5EFF95362DFF705DC9FE84FF54" box="[245,288,223,248]" metricMagnitude="-2" metricUnit="m" metricValue="7.62" pageId="30" pageNumber="331" unit="in" value="3.0">3 in</quantity>
the second and third whorls,
<quantity id="F5229B5EFF95362DFDEC5DC9FD30FF54" box="[617,660,223,248]" metricMagnitude="-1" metricUnit="m" metricValue="1.016" pageId="30" pageNumber="331" unit="in" value="4.0">4 in</quantity>
the others; axial sculpture of 12 to 13 varices that develop into nodes when crossing the spiral threads.
</paragraph>
<paragraph id="326536BBFF95362DFF425C0EFCB6FE24" blockId="30.[151,1436,151,392]" pageId="30" pageNumber="331">
Operculum (
<figureCitation id="AAE12A3EFF95362DFED15C0EFE01FEEC" box="[340,421,295,320]" captionStart="FIGURE 22" captionStartId="31.[151,250,1155,1177]" captionTargetBox="[185,1403,181,1131]" captionTargetId="figure@31.[185,1404,181,1132]" captionTargetPageId="31" captionText="FIGURE 22. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – C. three views of the radula, scale bars: A = 20 µm, B = 10 µm; C = 50 µm. D. external and internal view of the operculum, scale bar = 500 µm. E. critical point dry of the penis, scale bar = 200 µm." httpUri="https://zenodo.org/record/256453/files/figure.png" pageId="30" pageNumber="331">Fig. 22</figureCitation>
D) thick, elliptical in shape, nucleus subterminal, attachment area with a thick rim. Radula (
<figureCitation id="AAE12A3EFF95362DFEA05C65FEDEFEC8" box="[293,378,332,357]" captionStart="FIGURE 22" captionStartId="31.[151,250,1155,1177]" captionTargetBox="[185,1403,181,1131]" captionTargetId="figure@31.[185,1404,181,1132]" captionTargetPageId="31" captionText="FIGURE 22. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – C. three views of the radula, scale bars: A = 20 µm, B = 10 µm; C = 50 µm. D. external and internal view of the operculum, scale bar = 500 µm. E. critical point dry of the penis, scale bar = 200 µm." httpUri="https://zenodo.org/record/256453/files/figure.png" pageId="30" pageNumber="331">Figs 22</figureCitation>
A–C) as in
<taxonomicName id="F5DA4D38FF95362DFE7F5C65FDDAFEC9" box="[506,638,332,357]" class="Gastropoda" family="Buccinidae" genus="Pareuthria" kingdom="Animalia" order="Neogastropoda" pageId="30" pageNumber="331" phylum="Mollusca" rank="species" species="paessleri">
<emphasis id="00AEEAA9FF95362DFE7F5C65FDDAFEC9" box="[506,638,332,357]" italics="true" pageId="30" pageNumber="331">A. paessleri</emphasis>
</taxonomicName>
; lateral teeth have 3 cusps but the innermost less developed. Penis (
<figureCitation id="AAE12A3EFF95362DFE965C46FEC0FE24" box="[275,356,367,392]" captionStart="FIGURE 22" captionStartId="31.[151,250,1155,1177]" captionTargetBox="[185,1403,181,1131]" captionTargetId="figure@31.[185,1404,181,1132]" captionTargetPageId="31" captionText="FIGURE 22. Argeneuthria euthrioides (Melvill &amp; Standen, 1898). A – C. three views of the radula, scale bars: A = 20 µm, B = 10 µm; C = 50 µm. D. external and internal view of the operculum, scale bar = 500 µm. E. critical point dry of the penis, scale bar = 200 µm." httpUri="https://zenodo.org/record/256453/files/figure.png" pageId="30" pageNumber="331">Fig. 22</figureCitation>
E) as in the other species of the genus.
</paragraph>
</subSubSection>
<caption id="66A56633FF95362DFF125ABDFB4EF844" httpUri="https://zenodo.org/record/256452/files/figure.png" pageId="30" pageNumber="331" targetBox="[151,1435,445,1918]" targetPageId="30">
<paragraph id="326536BBFF95362DFF125ABDFB4EF844" blockId="30.[151,1437,1940,2024]" pageId="30" pageNumber="331">
<emphasis id="00AEEAA9FF95362DFF125ABDFE80F806" bold="true" box="[151,292,1940,1962]" pageId="30" pageNumber="331">FIGURE 21.</emphasis>
<taxonomicName id="F5DA4D38FF95362DFEB55ABDFCFBF806" authority="Melvill &amp; Standen, 1898" authorityName="Melvill &amp; Standen" authorityYear="1898" box="[304,863,1940,1962]" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="30" pageNumber="331" phylum="Mollusca" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF95362DFEB55ABDFD90F806" box="[304,564,1940,1962]" italics="true" pageId="30" pageNumber="331">Argeneuthria euthrioides</emphasis>
(Melvill &amp; Standen, 1898)
</taxonomicName>
.
<emphasis id="00AEEAA9FF95362DFCEB5ABDFC39F806" bold="true" box="[878,925,1940,1962]" pageId="30" pageNumber="331">A–I.</emphasis>
<taxonomicName id="F5DA4D38FF95362DFC2C5ABDFAF2F806" authority="Melvill &amp; Standen" authorityName="Melvill &amp; Standen" box="[937,1366,1940,1962]" class="Reptilia" family="Viperidae" genus="Lachesis" kingdom="Animalia" order="Squamata" pageId="30" pageNumber="331" phylum="Chordata" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF95362DFC2C5ABDFBDBF806" box="[937,1151,1940,1962]" italics="true" pageId="30" pageNumber="331">Lachesis euthrioides</emphasis>
Melvill &amp; Standen
</taxonomicName>
; A–C: Lectotype, Shallow Bay, Lively Island, EE.7750; D–F and G–I: two paralectotypes, EE.7751.
<emphasis id="00AEEAA9FF95362DFBCB5A9AFB26F865" bold="true" box="[1102,1154,1971,1993]" pageId="30" pageNumber="331">J–K.</emphasis>
MACN-In 40507, Ushuaia.
<emphasis id="00AEEAA9FF95362DFF125AFBFF77F844" bold="true" box="[151,211,2002,2024]" pageId="30" pageNumber="331">L–M.</emphasis>
MACN-In 40507, Ushuaia, Scale bar = 3 mm.
<emphasis id="00AEEAA9FF95362DFD315AFBFD43F844" bold="true" box="[692,743,2002,2024]" pageId="30" pageNumber="331">O–P.</emphasis>
Two views of the protoconch, scale bar = 500 µm,
</paragraph>
</caption>
<caption id="66A56633FF94362CFF1259AAFE8CFB7A" httpUri="https://zenodo.org/record/256453/files/figure.png" pageId="31" pageNumber="332" targetBox="[185,1403,181,1131]" targetPageId="31">
<paragraph id="326536BBFF94362CFF1259AAFE8CFB7A" blockId="31.[151,1436,1155,1238]" pageId="31" pageNumber="332">
<emphasis id="00AEEAA9FF94362CFF1259AAFEBBFB35" bold="true" box="[151,287,1155,1177]" pageId="31" pageNumber="332">FIGURE 22.</emphasis>
<taxonomicName id="F5DA4D38FF94362CFEA059AAFC9EFB35" authority="Melvill &amp; Standen, 1898" authorityName="Melvill &amp; Standen" authorityYear="1898" box="[293,826,1155,1177]" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF94362CFEA059AAFD80FB35" box="[293,548,1155,1177]" italics="true" pageId="31" pageNumber="332">Argeneuthria euthrioides</emphasis>
(Melvill &amp; Standen, 1898)
</taxonomicName>
.
<emphasis id="00AEEAA9FF94362CFCC159AAFCDFFB35" bold="true" box="[836,891,1155,1177]" pageId="31" pageNumber="332">A–C.</emphasis>
three views of the radula, scale bars: A = 20 µm, B = 10 µm; C = 50 µm.
<emphasis id="00AEEAA9FF94362CFEE45988FEDEFB1B" bold="true" box="[353,378,1185,1207]" pageId="31" pageNumber="332">D.</emphasis>
external and internal view of the operculum, scale bar = 500 µm.
<emphasis id="00AEEAA9FF94362CFB9C5988FB94FB1B" bold="true" box="[1049,1072,1185,1207]" pageId="31" pageNumber="332">E.</emphasis>
critical point dry of the penis, scale bar = 200 µm.
</paragraph>
</caption>
<subSubSection id="7AC06530FF94362CFF4259D4FCCAFABA" box="[199,878,1277,1302]" pageId="31" pageNumber="332" type="materials_examined">
<paragraph id="326536BBFF94362CFF4259D4FCCAFABA" blockId="31.[151,1436,1277,1590]" box="[199,878,1277,1302]" pageId="31" pageNumber="332">
<emphasis id="00AEEAA9FF94362CFF4259D4FE14FABA" bold="true" box="[199,432,1277,1302]" pageId="31" pageNumber="332">Material examined.</emphasis>
29 spms., Ushuaia, (MACN-In 40507).
</paragraph>
</subSubSection>
<subSubSection id="7AC06530FF94362CFF425808FBC3FA95" box="[199,1127,1313,1338]" pageId="31" pageNumber="332" type="distribution">
<paragraph id="326536BBFF94362CFF425808FBC3FA95" blockId="31.[151,1436,1277,1590]" box="[199,1127,1313,1338]" pageId="31" pageNumber="332">
<emphasis id="00AEEAA9FF94362CFF425808FEC4FA96" bold="true" box="[199,352,1313,1338]" pageId="31" pageNumber="332">Distribution.</emphasis>
Known from Ushuaia, Beagle Canal,
<collectingRegion id="F01EF859FF94362CFC895808FC61FA96" box="[780,965,1313,1338]" country="Argentina" name="Tierra del Fuego - Antartida e Islas del Atlantico Sur" pageId="31" pageNumber="332">Tierra del Fuego</collectingRegion>
and Lively Is.
</paragraph>
</subSubSection>
<subSubSection id="7AC06530FF94362CFF42586CFD23F999" pageId="31" pageNumber="332" type="discussion">
<paragraph id="326536BBFF94362CFF42586CFD23F999" blockId="31.[151,1436,1277,1590]" pageId="31" pageNumber="332">
<emphasis id="00AEEAA9FF94362CFF42586CFE9FFAF2" bold="true" box="[199,315,1349,1374]" pageId="31" pageNumber="332">Remarks.</emphasis>
This species was included in
<taxonomicName id="F5DA4D38FF94362CFD0E586CFCBBFAF2" box="[651,799,1349,1374]" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="326" phylum="Mollusca" rank="genus" status="gen. nov.">
<emphasis id="00AEEAA9FF94362CFD0E586CFCBBFAF2" box="[651,799,1349,1374]" italics="true" pageId="31" pageNumber="332">Argeneuthria</emphasis>
</taxonomicName>
basically because of the close similarity with radula and penis of
<taxonomicName id="F5DA4D38FF94362CFF735843FEDDFA2E" box="[246,377,1385,1410]" class="Gastropoda" family="Buccinidae" genus="Pareuthria" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="paessleri">
<emphasis id="00AEEAA9FF94362CFF735843FEDDFA2E" box="[246,377,1385,1410]" italics="true" pageId="31" pageNumber="332">A. paessleri</emphasis>
</taxonomicName>
despite some minor proportional variations. The shell morphology most closely resembles that of
<taxonomicName id="F5DA4D38FF94362CFF3E58A7FE8CFA0A" box="[187,296,1421,1446]" class="Gastropoda" family="Buccinidae" genus="Falsimacme" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="kobelti">
<emphasis id="00AEEAA9FF94362CFF3E58A7FE8CFA0A" box="[187,296,1421,1446]" italics="true" pageId="31" pageNumber="332">F. kobelti</emphasis>
</taxonomicName>
; however, the protoconch in
<taxonomicName id="F5DA4D38FF94362CFD0F58A7FD53FA0A" box="[650,759,1421,1446]" class="Gastropoda" family="Buccinidae" genus="Falsimacme" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="kobelti">
<emphasis id="00AEEAA9FF94362CFD0F58A7FD53FA0A" box="[650,759,1421,1446]" italics="true" pageId="31" pageNumber="332">F. kobelti</emphasis>
</taxonomicName>
is smaller (1.5 whorls in
<emphasis id="00AEEAA9FF94362CFBB058A7FB62FA09" box="[1077,1222,1421,1446]" italics="true" pageId="31" pageNumber="332">
<taxonomicName id="F5DA4D38FF94362CFBB058A7FB06FA0A" box="[1077,1186,1421,1446]" class="Gastropoda" family="Buccinidae" genus="Falsimacme" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="kobelti">F. kobelti</taxonomicName>
vs
</emphasis>
. 2.5 whorls in
<taxonomicName id="F5DA4D38FF94362CFA0158A7FEB1FA66" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF94362CFA0158A7FEB1FA66" italics="true" pageId="31" pageNumber="332">A. euthrioides</emphasis>
</taxonomicName>
). Also, in
<taxonomicName id="F5DA4D38FF94362CFE0A589BFD8AFA66" box="[399,558,1457,1482]" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF94362CFE0A589BFD8AFA66" box="[399,558,1457,1482]" italics="true" pageId="31" pageNumber="332">A. euthrioides</emphasis>
</taxonomicName>
the ornamentation begins with axial varices and then the spiral cords appear, while in
<taxonomicName id="F5DA4D38FF94362CFF7C58FFFEC5FA42" box="[249,353,1493,1518]" class="Gastropoda" family="Buccinidae" genus="Falsimacme" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="kobelti">
<emphasis id="00AEEAA9FF94362CFF7C58FFFEC5FA42" box="[249,353,1493,1518]" italics="true" pageId="31" pageNumber="332">F. kobelti</emphasis>
</taxonomicName>
three cords develop initially on the first whorls over a smooth surface and then the axial varices rise (see figures
<date id="4664107BFF94362CFEC858D0FED7F9BE" box="[333,371,1529,1554]" pageId="31" pageNumber="332" value="2015-01">15I</date>
–K). In addition,
<taxonomicName id="F5DA4D38FF94362CFDB658D3FD74F9BE" box="[563,720,1529,1554]" class="Gastropoda" family="Buccinidae" genus="Argeneuthria" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="euthrioides">
<emphasis id="00AEEAA9FF94362CFDB658D3FD74F9BE" box="[563,720,1529,1554]" italics="true" pageId="31" pageNumber="332">A. euthrioides</emphasis>
</taxonomicName>
has a shorter siphonal canal, lower spire and the nodes are more globose and rounded that those of
<taxonomicName id="F5DA4D38FF94362CFD9D5B37FD24F99A" box="[536,640,1565,1590]" class="Gastropoda" family="Buccinidae" genus="Falsimacme" higherTaxonomySource="GBIF" kingdom="Animalia" order="Neogastropoda" pageId="31" pageNumber="332" phylum="Mollusca" rank="species" species="kobelti">
<emphasis id="00AEEAA9FF94362CFD9D5B37FD24F99A" box="[536,640,1565,1590]" italics="true" pageId="31" pageNumber="332">F. kobelti</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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