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<mods:title id="47FE3EC56DEE7DAC6E0AA6ED64BD1C70">Systematic evaluation of cryptic freshwater snails from central Chile, including the enigmatic Littoridina santiagensis (Gastropoda, Truncatelloidea)</mods:title>
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<emphasis id="B96C9378FFC31C13AFAEF9EC15015B4E" bold="true" box="[484,801,1575,1602]" italics="true" pageId="3" pageNumber="4">Potamolithus santiagensis</emphasis>
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<bibRefCitation id="EF89329BFFC31C13AD7BF9EC159E5B4E" author="Biese W. A." box="[817,958,1575,1602]" pageId="3" pageNumber="4" pagination="169 - 190" refId="ref4464" refString="Biese W. A. 1944. Revision de los moluscos terrestres y de agua dulce provistos de concha de Chile. Parte I, Familia Amnicolidae. Boletin del Museo Nacional de Historia Natural 22: 169 - 190." type="journal article" year="1944">Biese, 1944</bibRefCitation>
)
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<figureCitation id="132353EFFFC31C13ACADF980156D5B6A" box="[743,845,1611,1638]" captionStart-0="Fig" captionStart-1="Fig" captionStart-2="Fig" captionStart-3="Fig" captionStart-4="Fig" captionStartId-0="1.[190,233,1930,1956]" captionStartId-1="4.[189,232,1860,1886]" captionStartId-2="5.[189,232,1825,1851]" captionStartId-3="6.[189,232,1966,1992]" captionStartId-4="7.[189,232,1930,1956]" captionTargetBox-0="[628,961,1464,1865]" captionTargetBox-1="[189,1397,917,1807]" captionTargetBox-2="[189,1398,450,1776]" captionTargetBox-3="[194,1390,1018,1887]" captionTargetBox-4="[196,1349,961,1840]" captionTargetId-0="figure@1.[628,961,1464,1865]" captionTargetId-1="figure@4.[189,1397,917,1807]" captionTargetId-2="figure@5.[189,1399,450,1776]" captionTargetId-3="figure@6.[187,1395,1008,1895]" captionTargetId-4="figure@7.[189,1398,954,1852]" captionTargetPageId-0="1" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionTargetPageId-4="7" captionText-0="Fig. 1. ‟Littoridina” santiagensis Biese, 1944. A. The only drawings of a specimen of the species taken from the original description by Biese (1944). B. Lectotype housed at the Museo Nacional de Historia Natural, Santiago, Chile (MNHNCL) (after Collado et al. 2011)." captionText-1="Fig. 2. Shells of truncatelloidean freshwater snails observed in the present study. AB. Slender morphotype from El Yeso Spring (A) and Lo Carreño (B) assigned to Potamopyrgus antipodarum (Gray, 1843). CE. Thicker morphotype from El Yeso Spring (C), Lo Carreño (D) and El Colorado (E) assigned to Potamolithus santiagensis (Biese, 1944) comb. nov. F. Thicker morphotype from Viña Casas del Maule assigned to Potamolithus sp. Scale bar = 1 mm." captionText-2="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." captionText-3="Fig. 4. PCA of Potamolithus populations and Potamopyrgus antipodarum (Gray, 1843) collected from central Chile." captionText-4="Fig. 5. Bayesian tree based on COI sequences. Numbers at nodes indicate posterior probability values (only given if Ż 0.95). Names in bold refer to new sequences reported in this paper. Numbers following taxa refer to GenBank sequences." httpUri-0="https://zenodo.org/record/2824350/files/figure.png" httpUri-1="https://zenodo.org/record/2824356/files/figure.png" httpUri-2="https://zenodo.org/record/2824368/files/figure.png" httpUri-3="https://zenodo.org/record/2824374/files/figure.png" httpUri-4="https://zenodo.org/record/2824380/files/figure.png" pageId="3" pageNumber="4">Figs 15</figureCitation>
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<emphasis id="B96C9378FFC31C13AEF7F94517F65BAB" box="[189,470,1678,1704]" italics="true" pageId="3" pageNumber="4">Littoridina santiagensis</emphasis>
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: 187
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188, fig. 21 (Estero Dehesa, Cerro Manquehue, Barnechea, east to
<collectingRegion id="49DC8188FFC31C13AF77F97A17875BC7" box="[317,423,1713,1739]" country="Chile" name="Region Metropolitana" pageId="3" pageNumber="4">Santiago</collectingRegion>
,
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,
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locality).
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santiagensis
</emphasis>
<treatmentCitation id="0AB9697BFFC31C13AFA9F93F14975A02" author="Stuardo J." box="[483,695,1779,1806]" page="17" pageId="3" pageNumber="4" year="1961">
<bibRefCitation id="EF89329BFFC31C13AFA9F93F14AC5A01" author="Stuardo J." box="[483,652,1779,1806]" pageId="3" pageNumber="4" pagination="7 - 32" refId="ref6531" refString="Stuardo J. 1961. Contribucion a un catalogo de los moluscos gasteropodos chilenos de agua dulce. Gayana, Zoologica 1: 7 - 32." type="journal article" year="1961">Stuardo, 1961</bibRefCitation>
: 17
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. —
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<bibRefCitation id="EF89329BFFC31C13ACA8F93F15925A02" author="Valdovinos C." box="[738,946,1780,1806]" pageId="3" pageNumber="4" pagination="111 - 164" refId="ref6558" refString="Valdovinos C. 1999. Biodiversidad de moluscos chilenos: Base de datos taxonomica y distribucional. Gayana 63 (2): 111 - 164." type="journal article" year="1999">Valdovinos, 1999</bibRefCitation>
: 128
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, 2006: 90. —
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<bibRefCitation id="EF89329BFFC31C13AAC7F93F13145A02" author="Sielfeld W." box="[1165,1332,1780,1806]" pageId="3" pageNumber="4" refId="ref6420" refString="Sielfeld W. 2001. Phylum Mollusca. Guias de Identificacion y Biodiversidad de la Fauna Chilena. Apuntes de Zoologia. Universidad Arturo Prat, Iquique, Chile." type="book" year="2001">Sielfeld, 2001</bibRefCitation>
: 3
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.
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<emphasis id="B96C9378FFC31C13AEF7F8D3179E5A3D" box="[189,446,1816,1842]" italics="true" pageId="3" pageNumber="4">Heleobia santiagensis</emphasis>
(
<bibRefCitation id="EF89329BFFC31C13AF86F8DC147A5A3E" author="Biese W. A." box="[460,602,1815,1842]" pageId="3" pageNumber="4" pagination="169 - 190" refId="ref4464" refString="Biese W. A. 1944. Revision de los moluscos terrestres y de agua dulce provistos de concha de Chile. Parte I, Familia Amnicolidae. Boletin del Museo Nacional de Historia Natural 22: 169 - 190." type="journal article" year="1944">Biese, 1944</bibRefCitation>
)
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.
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<bibRefCitation id="EF89329BFFC31C13AC26F8DC15945A3E" author="Hershler R. &amp; Thompson F. G." box="[620,948,1815,1842]" pageId="3" pageNumber="4" pagination="1 - 140" refId="ref5637" refString="Hershler R. &amp; Thompson F. G. 1992. A review of the aquatic gastropod subfamily Cochliopinae (Prosobranchia: Hydrobiidae). Malacological Review, Supplement 5: 1 - 140." type="journal article" year="1992">Hershler &amp;Thompson, 1992</bibRefCitation>
: 55
</treatmentCitation>
. —
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<bibRefCitation id="EF89329BFFC31C13AA46F8DC12D25A3E" author="Collado G. A. &amp; Mendez M. A. &amp; Letelier S. &amp; Veliz D. &amp; Sabando M. C." box="[1036,1266,1815,1842]" pageId="3" pageNumber="4" pagination="49 - 58" refId="ref4996" refString="Collado G. A., Mendez M. A., Letelier S., Veliz D. &amp; Sabando M. C. 2011. Morfologia peniana y taxonomia del genero Heleobia Stimpson, 1865 en Chile junto a una revision de los ejemplares tipo del Museo Nacional de Historia Natural de Chile. In: Cazzaniga N. J. (ed.) El genero Heleobia (Caenogastropoda, Cochliopidae) en America del Sur. Amici Molluscarum, numero Especial: 49 - 58." type="book chapter" year="2011">
Collado
<emphasis id="B96C9378FFC31C13AA25F8D312885A3E" box="[1135,1192,1816,1842]" italics="true" pageId="3" pageNumber="4">et al.</emphasis>
, 2011
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: 51
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, 5456, fig. 2RS.
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<emphasis id="B96C9378FFC31C13AEF7F8B5174C5A9B" bold="true" box="[189,364,1917,1944]" pageId="3" pageNumber="4">Type material</emphasis>
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<typeStatus id="54A3F1C8FFC31C13AEA0F86617465ACB" box="[234,358,1965,1991]" pageId="3" pageNumber="4" type="lectotype">
<emphasis id="B96C9378FFC31C13AEA0F86617465ACB" bold="true" box="[234,358,1965,1991]" pageId="3" pageNumber="4">Lectotype</emphasis>
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</paragraph>
<paragraph id="8BA74F6AFFC31C13AEF7F81A15A85AE7" blockId="3.[189,904,1965,2027]" box="[189,904,2001,2027]" pageId="3" pageNumber="4">
<materialsCitation id="3B704537FFC31C13AEF7F81A15A85AE7" ID-GBIF-Occurrence="2240860464" box="[189,904,2001,2027]" collectionCode="MNHNCL" country="Chile" location="Santiago" pageId="3" pageNumber="4" specimenCode="200611" specimenCount="1" stateProvince="Santiago" typeStatus="lectotype">
<collectingCountry id="F30F0FFAFFC31C13AEF7F81A17335AE7" box="[189,275,2001,2027]" name="Chile" pageId="3" pageNumber="4">CHILE</collectingCountry>
<collectingRegion id="49DC8188FFC31C13AF66F81A17B65AE7" box="[300,406,2001,2027]" country="Chile" name="Region Metropolitana" pageId="3" pageNumber="4">Santiago</collectingRegion>
;
<specimenCode id="DBBEE711FFC31C13AFE8F81A17DC5AE7" box="[418,508,2001,2027]" pageId="3" pageNumber="4">200611</specimenCode>
,
<collectionCode id="ED09D7AFFFC31C13AC42F81A14A65AE7" box="[520,646,2001,2027]" pageId="3" pageNumber="4">MNHNCL</collectionCode>
(
<bibRefCitation id="EF89329BFFC31C13ACDFF81A155B5AE7" author="Collado G. A. &amp; Mendez M. A. &amp; Letelier S. &amp; Veliz D. &amp; Sabando M. C." box="[661,891,2001,2027]" pageId="3" pageNumber="4" pagination="49 - 58" refId="ref4996" refString="Collado G. A., Mendez M. A., Letelier S., Veliz D. &amp; Sabando M. C. 2011. Morfologia peniana y taxonomia del genero Heleobia Stimpson, 1865 en Chile junto a una revision de los ejemplares tipo del Museo Nacional de Historia Natural de Chile. In: Cazzaniga N. J. (ed.) El genero Heleobia (Caenogastropoda, Cochliopidae) en America del Sur. Amici Molluscarum, numero Especial: 49 - 58." type="book chapter" year="2011">
Collado
<emphasis id="B96C9378FFC31C13ACB1F81915165AE7" box="[763,822,2001,2027]" italics="true" pageId="3" pageNumber="4">et al.</emphasis>
2011
</bibRefCitation>
).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C3021CE1FFC41C15AEF7FEC015375C45" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5" type="description">
<paragraph id="8BA74F6AFFC41C14AEF7FEC0176E5C29" blockId="4.[189,334,267,293]" box="[189,334,267,293]" pageId="4" pageNumber="5">
<heading id="D0EFF806FFC41C14AEF7FEC0176E5C29" bold="true" box="[189,334,267,293]" fontSize="11" level="3" pageId="4" pageNumber="5" reason="3">
<emphasis id="B96C9378FFC41C14AEF7FEC0176E5C29" bold="true" box="[189,334,267,293]" pageId="4" pageNumber="5">Description</emphasis>
</heading>
</paragraph>
<paragraph id="8BA74F6AFFC41C14AEF7FEF114055F2A" blockId="4.[189,1399,313,551]" pageId="4" pageNumber="5">
SHELL. Ovate-conic, dark brown, relatively thick, with about 5.5 whorls (
<figureCitation id="132353EFFFC41C14AA47FEF212705C58" box="[1037,1104,313,340]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
AD). Shell length about 3.0 mm (
<tableCitation id="C69A7AD1FFC41C14AF69FE97175A5C7B" box="[291,378,348,375]" captionStart="Table 1" captionStartId="7.[189,258,268,294]" captionTargetPageId="7" captionText="Table 1. Average shell dimensions (± standard deviation) of six linear variables used in the comparative study of Potamolithus populations and Potamopyrgus antipodarum (Gray, 1843) from central Chile." httpUri="http://table.plazi.org/id/DF671FE2FFC71C17AEF7FEC713755C44" pageId="4" pageNumber="5" tableUuid="DF671FE2FFC71C17AEF7FEC713755C44">Table 1</tableCitation>
). Periostracum brown. Protoconch smooth (
<figureCitation id="132353EFFFC41C14AD37FE9715F65C7B" box="[893,982,348,375]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3E</figureCitation>
), with about 1.3 whorls and 400 μm length (± 10 μm of standard deviation, n = 9). Aperture ovate, slightly angled adapically, lip thickened. Umbilicus imperforate or absent. Operculum ovate, thin, multispiral, light brown-transparent, with eccentric nucleus (
<figureCitation id="132353EFFFC41C14AFD2FE0D17FD5CEC" box="[408,477,454,480]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
FG); attachment scar occupying almost half of the internal surface (
<figureCitation id="132353EFFFC41C14AB40FE0D13495CEC" box="[1290,1385,454,480]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3G</figureCitation>
). Mantle black with a conspicuous gray band on anterior margin, head black, somewhat depigmented in center (
<figureCitation id="132353EFFFC41C14AF5FFDC717795F2B" box="[277,345,524,551]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
HI). Foot black.
</paragraph>
<paragraph id="8BA74F6AFFC41C14AEF7FD8412525F87" blockId="4.[189,1398,590,652]" pageId="4" pageNumber="5">
FEMALES. With nuchal node, white lips, tentacles grayish or black (
<figureCitation id="132353EFFFC41C14AD98FD8512375F64" box="[978,1047,590,616]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
HI). Some specimens with a white band at base of tentacles where eyes are located. Males were not observed.
</paragraph>
<paragraph id="8BA74F6AFFC41C14AEF7FD7813565E3A" blockId="4.[189,1399,691,823]" pageId="4" pageNumber="5">
RADULA. Taenioglossate (formula 3-1-3), with two marginal teeth and a lateral tooth placed on each side of the central tooth (
<figureCitation id="132353EFFFC41C14AFA8FD1D14065FFC" box="[482,550,726,752]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
JK). Central tooth trapezoidal, dorsally concave, ca. 20 μm wide; basal tongue U-shaped; with 56 lateral cusps on each side of median cusp and 34 pairs of basal cusps, first basal cusps arise from tooth face and are larger than those on cutting edge. Median cusp of central tooth
</paragraph>
<caption id="DF671FE2FFC41C14AEF7F88F15945AE0" httpUri="https://zenodo.org/record/2824356/files/figure.png" pageId="4" pageNumber="5" startId="4.[189,232,1860,1886]" targetBox="[189,1397,917,1807]" targetPageId="4">
<paragraph id="8BA74F6AFFC41C14AEF7F88F15945AE0" blockId="4.[189,1399,1860,2028]" pageId="4" pageNumber="5">
<emphasis id="B96C9378FFC41C14AEF7F88F17325A52" bold="true" box="[189,274,1860,1886]" pageId="4" pageNumber="5">Fig. 2.</emphasis>
Shells of truncatelloidean freshwater snails observed in the present study.
<emphasis id="B96C9378FFC41C14AA85F88F13275A53" bold="true" box="[1231,1287,1860,1887]" pageId="4" pageNumber="5">AB</emphasis>
. Slender morphotype from El Yeso Spring (A) and Lo Carreño (B) assigned to
<taxonomicName id="4C1834E9FFC41C14AA63F8A317795AA9" authority="(Gray, 1843)" authorityName="Gray" authorityYear="1843" baseAuthorityName="Gray" baseAuthorityYear="1843" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="4" pageNumber="5" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC41C14AA63F8A313575A8E" box="[1065,1399,1896,1922]" italics="true" pageId="4" pageNumber="5">Potamopyrgus antipodarum</emphasis>
(Gray, 1843)
</taxonomicName>
.
<emphasis id="B96C9378FFC41C14AF2DF84017BF5AA9" bold="true" box="[359,415,1931,1957]" pageId="4" pageNumber="5">CE</emphasis>
. Thicker morphotype from El Yeso Spring (C), Lo Carreño (D) and El Colorado (E) assigned to
<taxonomicName id="4C1834E9FFC41C14AF3CF86515725AC4" authority="(Biese, 1944)" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[374,850,1966,1992]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="4" pageNumber="5" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC41C14AF3CF865148C5AC4" box="[374,684,1966,1992]" italics="true" pageId="4" pageNumber="5">Potamolithus santiagensis</emphasis>
(Biese, 1944)
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC41C14AD11F86515FD5AC5" box="[859,989,1966,1993]" pageId="4" pageNumber="5" rank="species">comb. nov.</taxonomicNameLabel>
<emphasis id="B96C9378FFC41C14ADAFF86515D75AC4" bold="true" box="[997,1015,1966,1992]" pageId="4" pageNumber="5">F</emphasis>
. Thicker morphotype from Viña Casas del Maule assigned to
<taxonomicName id="4C1834E9FFC41C14AC5BF81A148D5AE7" authorityName="Pilsbry" authorityYear="1896" box="[529,685,2001,2027]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="4" pageNumber="5" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC41C14AC5BF81A148D5AE7" box="[529,685,2001,2027]" italics="true" pageId="4" pageNumber="5">Potamolithus</emphasis>
</taxonomicName>
sp. Scale bar = 1 mm.
</paragraph>
</caption>
<paragraph id="8BA74F6AFFC51C15AEF7FEC015375C45" blockId="5.[189,1399,267,329]" pageId="5" pageNumber="6">
well-developed and pointed. Lateral tooth with 11 cusps and median cusp well-developed and pointed. Inner marginal teeth with about 30 cusps (
<figureCitation id="132353EFFFC51C15ACE6FEE5152A5C45" box="[684,778,302,329]" captionStart="Fig" captionStartId="5.[189,232,1825,1851]" captionTargetBox="[189,1398,450,1776]" captionTargetId="figure@5.[189,1399,450,1776]" captionTargetPageId="5" captionText="Fig. 3. Potamolithus santiagensis (Biese, 1944) comb. nov., Yeso Spring, Chile. A. Shell imaged using SEM. BD. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views). E. Protoconch. FG. Opercula of two specimens (outer, inner sides, respectively). H. Head of a female. I. Head of another female having a nuchal node. J. Anterior-central section of radular ribbon. K. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm." httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="5" pageNumber="6">Fig. 3K</figureCitation>
).
</paragraph>
</subSubSection>
<caption id="DF671FE2FFC51C15AEF7F8EA13575AE0" httpUri="https://zenodo.org/record/2824368/files/figure.png" pageId="5" pageNumber="6" startId="5.[189,232,1825,1851]" targetBox="[189,1398,450,1776]" targetPageId="5">
<paragraph id="8BA74F6AFFC51C15AEF7F8EA13575AE0" blockId="5.[189,1399,1825,2028]" pageId="5" pageNumber="6">
<emphasis id="B96C9378FFC51C15AEF7F8EA172B5A37" bold="true" box="[189,267,1825,1851]" pageId="5" pageNumber="6">Fig. 3.</emphasis>
<taxonomicName id="4C1834E9FFC51C15AF58F8EA14CD5A37" authority="(Biese, 1944)" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[274,749,1825,1851]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC51C15AF58F8EA14675A37" box="[274,583,1825,1851]" italics="true" pageId="5" pageNumber="6">Potamolithus santiagensis</emphasis>
(Biese, 1944)
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC51C15ACBFF8EA15595A30" box="[757,889,1825,1852]" pageId="5" pageNumber="6" rank="species">comb. nov.</taxonomicNameLabel>
, Yeso Spring, Chile.
<emphasis id="B96C9378FFC51C15AA3BF8EA12A65A37" bold="true" box="[1137,1158,1825,1851]" pageId="5" pageNumber="6">A</emphasis>
. Shell imaged using SEM.
<emphasis id="B96C9378FFC51C15AF4DF88E171F5A53" bold="true" box="[263,319,1861,1887]" pageId="5" pageNumber="6">BD</emphasis>
. Shell of the same specimen photographed under a stereo microscope (frontal, dorsal, lateral views).
<emphasis id="B96C9378FFC51C15AF51F8A3170F5A8E" bold="true" box="[283,303,1896,1922]" pageId="5" pageNumber="6">E</emphasis>
. Protoconch.
<emphasis id="B96C9378FFC51C15AF9EF8A3142B5A8D" bold="true" box="[468,523,1895,1922]" pageId="5" pageNumber="6">FG</emphasis>
. Opercula of two specimens (outer, inner sides, respectively).
<emphasis id="B96C9378FFC51C15AABBF8A313285A8E" bold="true" box="[1265,1288,1896,1922]" pageId="5" pageNumber="6">H</emphasis>
. Head of a female.
<emphasis id="B96C9378FFC51C15AF7AF840171B5AA9" bold="true" box="[304,315,1931,1957]" pageId="5" pageNumber="6">I</emphasis>
. Head of another female having a nuchal node.
<emphasis id="B96C9378FFC51C15AD24F840155D5AA9" bold="true" box="[878,893,1931,1957]" pageId="5" pageNumber="6">J</emphasis>
. Anterior-central section of radular ribbon.
<emphasis id="B96C9378FFC51C15AEF7F86516F45AC4" bold="true" box="[189,212,1966,1992]" pageId="5" pageNumber="6">K</emphasis>
. Central teeth. Abbreviations: f = foot; h = head; l = lip; lt = left tentacle; nn = nuchal node; rt = right tentacle. Scale bars: AD = 1.0 mm; E = 250 μm; FG = 500 μm; HI = 0.5 mm; J = 50 μm; K = 10 μm.
</paragraph>
</caption>
<subSubSection id="C3021CE1FFC61C16AEF7FEC0145A5C7B" pageId="6" pageNumber="7" type="biology_ecology">
<paragraph id="8BA74F6AFFC61C16AEF7FEC017005C29" blockId="6.[189,288,267,293]" box="[189,288,267,293]" pageId="6" pageNumber="7">
<heading id="D0EFF806FFC61C16AEF7FEC017005C29" bold="true" box="[189,288,267,293]" fontSize="11" level="3" pageId="6" pageNumber="7" reason="3">
<emphasis id="B96C9378FFC61C16AEF7FEC017005C29" bold="true" box="[189,288,267,293]" pageId="6" pageNumber="7">Ecology</emphasis>
</heading>
</paragraph>
<paragraph id="8BA74F6AFFC61C16AEF7FEF2145A5C7B" blockId="6.[189,1398,313,375]" pageId="6" pageNumber="7">
<taxonomicName id="4C1834E9FFC61C16AEF7FEF217D45C5F" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[189,500,313,339]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC61C16AEF7FEF217D45C5F" box="[189,500,313,339]" italics="true" pageId="6" pageNumber="7">Potamolithus santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC61C16AFB7FEF214A15C58" box="[509,641,313,340]" pageId="6" pageNumber="7" rank="species">comb. nov.</taxonomicNameLabel>
is a herbivorous-detritivorous species that inhabits small water bodies like springs and small streams.
</paragraph>
</subSubSection>
<subSubSection id="C3021CE1FFC61C18AEF7FE5515275EBD" lastPageId="8" lastPageNumber="9" pageId="6" pageNumber="7" type="distribution">
<paragraph id="8BA74F6AFFC61C16AEF7FE5517765CB4" blockId="6.[189,342,414,440]" box="[189,342,414,440]" pageId="6" pageNumber="7">
<heading id="D0EFF806FFC61C16AEF7FE5517765CB4" bold="true" box="[189,342,414,440]" fontSize="11" level="3" pageId="6" pageNumber="7" reason="3">
<emphasis id="B96C9378FFC61C16AEF7FE5517765CB4" bold="true" box="[189,342,414,440]" pageId="6" pageNumber="7">Distribution</emphasis>
</heading>
</paragraph>
<paragraph id="8BA74F6AFFC61C16AEF7FE0615905FB6" blockId="6.[189,1399,460,698]" pageId="6" pageNumber="7">
Yeso Spring in Cajón del Maipo,
<collectingRegion id="49DC8188FFC61C16AC08FE0715665CEA" box="[578,838,460,486]" country="Chile" name="Region Metropolitana" pageId="6" pageNumber="7">Región Metropolitana</collectingRegion>
, Central
<collectingCountry id="F30F0FFAFFC61C16ADE5FE0715CF5CEA" box="[943,1007,460,486]" name="Chile" pageId="6" pageNumber="7">Chile</collectingCountry>
(
<bibRefCitation id="EF89329BFFC61C16ADB7FE0712A55CEB" author="Biese W. A." box="[1021,1157,460,487]" pageId="6" pageNumber="7" pagination="63 - 77" refId="ref4505" refString="Biese W. A. 1947. Revision de los moluscos terrestres y de agua dulce provistos de concha de Chile. Parte II, Familia Amnicolidae (continuacion). Boletin del Museo Nacional de Historia Natural 23: 63 - 77." type="journal article" year="1947">Biese 1947</bibRefCitation>
;
<bibRefCitation id="EF89329BFFC61C16AADAFE0713525CEB" author="Collado G. A. &amp; Mendez M. A. &amp; Letelier S. &amp; Veliz D. &amp; Sabando M. C." box="[1168,1394,460,487]" pageId="6" pageNumber="7" pagination="49 - 58" refId="ref4996" refString="Collado G. A., Mendez M. A., Letelier S., Veliz D. &amp; Sabando M. C. 2011. Morfologia peniana y taxonomia del genero Heleobia Stimpson, 1865 en Chile junto a una revision de los ejemplares tipo del Museo Nacional de Historia Natural de Chile. In: Cazzaniga N. J. (ed.) El genero Heleobia (Caenogastropoda, Cochliopidae) en America del Sur. Amici Molluscarum, numero Especial: 49 - 58." type="book chapter" year="2011">
Collado
<emphasis id="B96C9378FFC61C16AABEFE0613075CEB" box="[1268,1319,461,487]" italics="true" pageId="6" pageNumber="7">et al</emphasis>
. 2011
</bibRefCitation>
; present study). This spring is a small tributary of the Yeso River, which empties in the Maipo River. The species also inhabits small irrigation canals in the
<collectingRegion id="49DC8188FFC61C16AD5CFDD812345F21" box="[790,1044,531,557]" country="Chile" name="Libertador General Bernardo O'Higgins" pageId="6" pageNumber="7">Región de OHiggins</collectingRegion>
(Lo Carreño) and
<collectingRegion id="49DC8188FFC61C16AABFFDD817285F5C" country="Chile" name="Maule" pageId="6" pageNumber="7">Región del Maule</collectingRegion>
(El Colorado). Snail collections made in 2011, 2014,
<date id="FFA669AAFFC61C16ADC6FDFD121D5F5C" box="[908,1085,566,593]" pageId="6" pageNumber="7" value="2015" valueMax="2017">2015 and 2017</date>
at the
<typeStatus id="54A3F1C8FFC61C16AADAFDFC12E35F5D" box="[1168,1219,567,593]" pageId="6" pageNumber="7">type</typeStatus>
locality Estero Dehesa have not provided specimens of the species. This ecosystem has been invaded by
<taxonomicName id="4C1834E9FFC61C16AA8EFD9117515F9B" authority="(Collado 2014)" authorityName="Collado" authorityYear="2014" baseAuthorityName="Collado" baseAuthorityYear="2014" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC61C16AA8EFD9113575F7F" box="[1220,1399,601,627]" italics="true" pageId="6" pageNumber="7">P. antipodarum</emphasis>
(
<bibRefCitation id="EF89329BFFC61C16AE8FFDB717485F9B" author="Collado G. A." box="[197,360,636,663]" pageId="6" pageNumber="7" pagination="70" refId="ref4896" refString="Collado G. A. 2014. Out of New Zealand: molecular identification of the highly invasive freshwater mollusk Potamopyrgus antipodarum (Gray, 1843) in South America. Zoological Studies 53: 70. https: // doi. org / 10.1186 / s 40555 - 014 - 0070 - y" type="journal article" year="2014">Collado 2014</bibRefCitation>
)
</taxonomicName>
and
<taxonomicName id="4C1834E9FFC61C16AFE7FDB617D55F9B" box="[429,501,637,663]" class="Gastropoda" family="Physidae" genus="Physa" kingdom="Animalia" order="Hygrophila" pageId="6" pageNumber="7" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC61C16AFE7FDB617D55F9B" box="[429,501,637,663]" italics="true" pageId="6" pageNumber="7">Physa</emphasis>
</taxonomicName>
sp. (unpublished data). In Yeso Spring,
<taxonomicName id="4C1834E9FFC61C16AD9EFDB612A45F9A" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[980,1156,637,662]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC61C16AD9EFDB612A45F9A" box="[980,1156,637,662]" italics="true" pageId="6" pageNumber="7">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC61C16AAC6FDB713305F9B" box="[1164,1296,636,663]" pageId="6" pageNumber="7" rank="species">comb. nov.</taxonomicNameLabel>
coexists with
<taxonomicName id="4C1834E9FFC61C16AEB2FD6A178D5FB6" baseAuthorityName="Collado" baseAuthorityYear="2014" box="[248,429,672,698]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC61C16AEB2FD6A178D5FB6" box="[248,429,672,698]" italics="true" pageId="6" pageNumber="7">P. antipodarum</emphasis>
</taxonomicName>
and snails of the genus
<taxonomicName id="4C1834E9FFC61C16AC8DFD6B158B5FB6" authority="Gray, 1828" authorityName="Gray" authorityYear="1828" box="[711,939,672,698]" class="Gastropoda" family="Chilinidae" genus="Chilina" kingdom="Animalia" order="Hygrophila" pageId="6" pageNumber="7" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC61C16AC8DFD6B153F5FB6" box="[711,799,672,698]" italics="true" pageId="6" pageNumber="7">Chilina</emphasis>
Gray, 1828
</taxonomicName>
.
</paragraph>
<paragraph id="8BA74F6AFFC61C16AEF7FD2A17FF5FF7" blockId="6.[189,479,737,763]" box="[189,479,737,763]" pageId="6" pageNumber="7">
<heading id="D0EFF806FFC61C16AEF7FD2A17FF5FF7" bold="true" box="[189,479,737,763]" fontSize="11" level="3" pageId="6" pageNumber="7" reason="3">
<emphasis id="B96C9378FFC61C16AEF7FD2A17FF5FF7" bold="true" box="[189,479,737,763]" pageId="6" pageNumber="7">Morphometric analysis</emphasis>
</heading>
</paragraph>
<paragraph id="8BA74F6AFFC61C16AEF7FCDB13575EBB" blockId="6.[189,1399,784,951]" pageId="6" pageNumber="7">
The mean values of the shell variables obtained for the freshwater snails inhabiting central
<collectingCountry id="F30F0FFAFFC61C16AAF4FCDB12DE5E26" box="[1214,1278,784,810]" name="Chile" pageId="6" pageNumber="7">Chile</collectingCountry>
are shown in
<tableCitation id="C69A7AD1FFC61C16AE96FCF817165E41" box="[220,310,819,845]" captionStart="Table 1" captionStartId="7.[189,258,268,294]" captionTargetPageId="7" captionText="Table 1. Average shell dimensions (± standard deviation) of six linear variables used in the comparative study of Potamolithus populations and Potamopyrgus antipodarum (Gray, 1843) from central Chile." httpUri="http://table.plazi.org/id/DF671FE2FFC71C17AEF7FEC713755C44" pageId="6" pageNumber="7" tableUuid="DF671FE2FFC71C17AEF7FEC713755C44">Table 1</tableCitation>
. Although the Kruskal-Wallis tests considering the six variables analyzed were statistically significant, only 23 of 60 pairwise post-hoc comparisons among native
<taxonomicName id="4C1834E9FFC61C16AA5FFC9D12915E7C" authorityName="Pilsbry" authorityYear="1896" box="[1045,1201,854,880]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC61C16AA5FFC9D12915E7C" box="[1045,1201,854,880]" italics="true" pageId="6" pageNumber="7">Potamolithus</emphasis>
</taxonomicName>
populations and
<taxonomicName id="4C1834E9FFC61C16AEF7FCB117555E9F" baseAuthorityName="Collado" baseAuthorityYear="2014" box="[189,373,889,915]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC61C16AEF7FCB117555E9F" box="[189,373,889,915]" italics="true" pageId="6" pageNumber="7">P. antipodarum</emphasis>
</taxonomicName>
were significant, providing evidence of the difficulties in distinguishing these snails (
<tableCitation id="C69A7AD1FFC61C16AE8FFC57173F5EBB" box="[197,287,924,951]" captionStart="Table 2" captionStartId="9.[189,258,268,294]" captionTargetPageId="9" captionText="Table 2. P-values of Kruskal-Wallis (in column Shell variable) and pairwise post-hoc Mann-Whitney U-tests of six linear variables." httpUri="http://table.plazi.org/id/DF671FE2FFC91C19AEF7FEC7143D5C44" pageId="6" pageNumber="7" tableUuid="DF671FE2FFC91C19AEF7FEC7143D5C44">Table 2</tableCitation>
). However, in the PCA the
<taxonomicName id="4C1834E9FFC61C16AC2AFC5614DC5EBB" authorityName="Pilsbry" authorityYear="1896" box="[608,764,925,951]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC61C16AC2AFC5614DC5EBB" box="[608,764,925,951]" italics="true" pageId="6" pageNumber="7">Potamolithus</emphasis>
</taxonomicName>
populations were well separated from
<taxonomicName id="4C1834E9FFC61C16AA88FC5613575EBB" baseAuthorityName="Collado" baseAuthorityYear="2014" box="[1218,1399,925,951]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC61C16AA88FC5613575EBB" box="[1218,1399,925,951]" italics="true" pageId="6" pageNumber="7">P. antipodarum</emphasis>
</taxonomicName>
</paragraph>
<caption id="DF671FE2FFC61C16AEF7F865177B5AE7" httpUri="https://zenodo.org/record/2824374/files/figure.png" pageId="6" pageNumber="7" startId="6.[189,232,1966,1992]" targetBox="[194,1390,1018,1887]" targetPageId="6">
<paragraph id="8BA74F6AFFC61C16AEF7F865177B5AE7" blockId="6.[189,1398,1966,2027]" pageId="6" pageNumber="7">
<emphasis id="B96C9378FFC61C16AEF7F865172B5AC4" bold="true" box="[189,267,1966,1992]" pageId="6" pageNumber="7">Fig. 4.</emphasis>
PCA of
<taxonomicName id="4C1834E9FFC61C16AF39F865142F5AC4" authorityName="Pilsbry" authorityYear="1896" box="[371,527,1966,1992]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC61C16AF39F865142F5AC4" box="[371,527,1966,1992]" italics="true" pageId="6" pageNumber="7">Potamolithus</emphasis>
</taxonomicName>
populations and
<taxonomicName id="4C1834E9FFC61C16AC91F86412E35AC4" authority="(Gray, 1843)" authorityName="Gray" authorityYear="1843" baseAuthorityName="Gray" baseAuthorityYear="1843" box="[731,1219,1966,1992]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC61C16AC91F86412055AC4" box="[731,1061,1966,1992]" italics="true" pageId="6" pageNumber="7">Potamopyrgus antipodarum</emphasis>
(Gray, 1843)
</taxonomicName>
collected from central Chile.
</paragraph>
</caption>
<caption id="DF671FE2FFC71C17AEF7FEC713755C44" ID-Table-UUID="DF671FE2FFC71C17AEF7FEC713755C44" httpUri="http://table.plazi.org/id/DF671FE2FFC71C17AEF7FEC713755C44" pageId="7" pageNumber="8" targetBox="[200,1382,397,842]" targetIsTable="true" targetPageId="7">
<paragraph id="8BA74F6AFFC71C17AEF7FEC713755C44" blockId="7.[189,1398,267,329]" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AEF7FEC7173F5C29" bold="true" box="[189,287,267,294]" pageId="7" pageNumber="8">Table 1.</emphasis>
Average shell dimensions (± standard deviation) of six linear variables used in the comparative study of
<taxonomicName id="4C1834E9FFC71C17AF6EFEE417E05C45" authorityName="Pilsbry" authorityYear="1896" box="[292,448,303,329]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC71C17AF6EFEE417E05C45" box="[292,448,303,329]" italics="true" pageId="7" pageNumber="8">Potamolithus</emphasis>
</taxonomicName>
populations and
<taxonomicName id="4C1834E9FFC71C17ACC3FEE4124F5C45" authority="(Gray, 1843)" authorityName="Gray" authorityYear="1843" baseAuthorityName="Gray" baseAuthorityYear="1843" box="[649,1135,303,329]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC71C17ACC3FEE415F35C45" box="[649,979,303,329]" italics="true" pageId="7" pageNumber="8">Potamopyrgus antipodarum</emphasis>
(Gray, 1843)
</taxonomicName>
from central Chile.
</paragraph>
</caption>
<paragraph id="8BA74F6AFFC71C17AE82FE4613455E46" pageId="7" pageNumber="8">
<table id="F918BDCAFFC7E3EFAE82FE4613465E46" box="[200,1382,397,842]" gridcols="7" gridrows="7" pageId="7" pageNumber="8">
<tr id="35284D28FFC7E3EFAE82FE4613465CA4" box="[200,1382,397,424]" gridrow="0" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FE4614295CA4" box="[200,521,397,424]" gridcol="0" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AE82FE4617545CAB" bold="true" box="[200,372,397,423]" pageId="7" pageNumber="8">Shell variable</emphasis>
</th>
<th id="76F92454FFC7E3EFAC2AFE46145D5CA4" box="[608,637,397,424]" gridcol="1" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AC2DFE4514575CA4" bold="true" box="[615,631,398,424]" pageId="7" pageNumber="8">n</emphasis>
</th>
<th id="76F92454FFC7E3EFACD9FE46152F5CA4" box="[659,783,397,424]" gridcol="2" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17ACF4FE4614CC5CAB" bold="true" box="[702,748,397,423]" pageId="7" pageNumber="8">SW</emphasis>
</th>
<th id="76F92454FFC7E3EFAD66FE4615885CA4" box="[812,936,397,424]" gridcol="3" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AD11FE4615A45CAB" bold="true" box="[859,900,397,423]" pageId="7" pageNumber="8">AL</emphasis>
</th>
<th id="76F92454FFC7E3EFAD8DFE4612635CA4" box="[967,1091,397,424]" gridcol="4" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17ADA4FE46123A5CAB" bold="true" box="[1006,1050,397,423]" pageId="7" pageNumber="8">AW</emphasis>
</th>
<th id="76F92454FFC7E3EFAA13FE4612F55CA4" box="[1113,1237,397,424]" gridcol="5" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AA3FFE4512995CA4" bold="true" box="[1141,1209,398,424]" pageId="7" pageNumber="8">BWL</emphasis>
</th>
<th id="76F92454FFC7E3EFAAA0FE4613465CA4" box="[1258,1382,397,424]" gridcol="6" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AB5AFE4613665CAB" bold="true" box="[1296,1350,397,423]" pageId="7" pageNumber="8">SPL</emphasis>
</th>
</tr>
<tr id="35284D28FFC7E3EFAE82FE7613465CF7" box="[200,1382,445,507]" gridrow="1" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FE7614295CF7" box="[200,521,445,507]" gridcol="0" gridrow="1" pageId="7" pageNumber="8">
<taxonomicName id="4C1834E9FFC71C17AE82FE7517555CDB" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[200,373,446,471]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC71C17AE82FE7517555CDB" box="[200,373,446,471]" italics="true" pageId="7" pageNumber="8">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC71C17AF37FE7617DF5CD4" box="[381,511,445,472]" pageId="7" pageNumber="8" rank="species">comb. nov.</taxonomicNameLabel>
El Yeso
</th>
<td id="76F92454FFC7E3EFAC2AFE76145D5CF7" box="[608,637,445,507]" gridcol="1" gridrow="1" pageId="7" pageNumber="8">26</td>
<td id="76F92454FFC7E3EFACD9FE76152F5CF7" box="[659,783,445,507]" gridcol="2" gridrow="1" pageId="7" pageNumber="8">1.7 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD66FE7615885CF7" box="[812,936,445,507]" gridcol="3" gridrow="1" pageId="7" pageNumber="8">1.3 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD8DFE7612635CF7" box="[967,1091,445,507]" gridcol="4" gridrow="1" pageId="7" pageNumber="8">0.9 (± 0.1)</td>
<td id="76F92454FFC7E3EFAA13FE7612F55CF7" box="[1113,1237,445,507]" gridcol="5" gridrow="1" pageId="7" pageNumber="8">2.1 (± 0.1)</td>
<td id="76F92454FFC7E3EFAAA0FE7613465CF7" box="[1258,1382,445,507]" gridcol="6" gridrow="1" pageId="7" pageNumber="8">0.6 (± 0.1)</td>
</tr>
<tr id="35284D28FFC7E3EFAE82FDC113465F4B" box="[200,1382,522,583]" gridrow="2" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FDC114295F4B" box="[200,521,522,583]" gridcol="0" gridrow="2" pageId="7" pageNumber="8">
<taxonomicName id="4C1834E9FFC71C17AE82FDC017555F28" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[200,373,523,548]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC71C17AE82FDC017555F28" box="[200,373,523,548]" italics="true" pageId="7" pageNumber="8">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC71C17AF37FDC117DF5F28" box="[381,511,522,548]" pageId="7" pageNumber="8" rank="species">comb. nov.</taxonomicNameLabel>
El Colorado
</th>
<td id="76F92454FFC7E3EFAC2AFDC1145D5F4B" box="[608,637,522,583]" gridcol="1" gridrow="2" pageId="7" pageNumber="8">17</td>
<td id="76F92454FFC7E3EFACD9FDC1152F5F4B" box="[659,783,522,583]" gridcol="2" gridrow="2" pageId="7" pageNumber="8">1.9 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD66FDC115885F4B" box="[812,936,522,583]" gridcol="3" gridrow="2" pageId="7" pageNumber="8">1.6 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD8DFDC112635F4B" box="[967,1091,522,583]" gridcol="4" gridrow="2" pageId="7" pageNumber="8">1.1 (± 0.1)</td>
<td id="76F92454FFC7E3EFAA13FDC112F55F4B" box="[1113,1237,522,583]" gridcol="5" gridrow="2" pageId="7" pageNumber="8">2.4 (± 0.2)</td>
<td id="76F92454FFC7E3EFAAA0FDC113465F4B" box="[1258,1382,522,583]" gridcol="6" gridrow="2" pageId="7" pageNumber="8">0.9 (± 0.1)</td>
</tr>
<tr id="35284D28FFC7E3EFAE82FD9C13465F99" box="[200,1382,599,661]" gridrow="3" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FD9C14295F99" box="[200,521,599,661]" gridcol="0" gridrow="3" pageId="7" pageNumber="8">
<taxonomicName id="4C1834E9FFC71C17AE82FD9317555F7D" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[200,373,600,625]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC71C17AE82FD9317555F7D" box="[200,373,600,625]" italics="true" pageId="7" pageNumber="8">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC71C17AF37FD9C17DF5F7D" box="[381,511,599,625]" pageId="7" pageNumber="8" rank="species">comb. nov.</taxonomicNameLabel>
Lo Carreño
</th>
<td id="76F92454FFC7E3EFAC2AFD9C145D5F99" box="[608,637,599,661]" gridcol="1" gridrow="3" pageId="7" pageNumber="8">9</td>
<td id="76F92454FFC7E3EFACD9FD9C152F5F99" box="[659,783,599,661]" gridcol="2" gridrow="3" pageId="7" pageNumber="8">1.7 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD66FD9C15885F99" box="[812,936,599,661]" gridcol="3" gridrow="3" pageId="7" pageNumber="8">1.3 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD8DFD9C12635F99" box="[967,1091,599,661]" gridcol="4" gridrow="3" pageId="7" pageNumber="8">1.2 (± 0.1)</td>
<td id="76F92454FFC7E3EFAA13FD9C12F55F99" box="[1113,1237,599,661]" gridcol="5" gridrow="3" pageId="7" pageNumber="8">2.1 (± 0.1)</td>
<td id="76F92454FFC7E3EFAAA0FD9C13465F99" box="[1258,1382,599,661]" gridcol="6" gridrow="3" pageId="7" pageNumber="8">0.8 (± 0.1)</td>
</tr>
<tr id="35284D28FFC7E3EFAE82FD6F13465FED" box="[200,1382,676,737]" gridrow="4" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FD6F14295FED" box="[200,521,676,737]" gridcol="0" gridrow="4" pageId="7" pageNumber="8">
<taxonomicName id="4C1834E9FFC71C17AE82FD6F17445FB2" authorityName="Pilsbry" authorityYear="1896" box="[200,356,676,702]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC71C17AE82FD6F17445FB2" box="[200,356,676,702]" italics="true" pageId="7" pageNumber="8">Potamolithus</emphasis>
</taxonomicName>
sp. Viña Casas del Maule
</th>
<td id="76F92454FFC7E3EFAC2AFD6F145D5FED" box="[608,637,676,737]" gridcol="1" gridrow="4" pageId="7" pageNumber="8">6</td>
<td id="76F92454FFC7E3EFACD9FD6F152F5FED" box="[659,783,676,737]" gridcol="2" gridrow="4" pageId="7" pageNumber="8">2.0 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD66FD6F15885FED" box="[812,936,676,737]" gridcol="3" gridrow="4" pageId="7" pageNumber="8">1.6 (± 0.2)</td>
<td id="76F92454FFC7E3EFAD8DFD6F12635FED" box="[967,1091,676,737]" gridcol="4" gridrow="4" pageId="7" pageNumber="8">1.1 (± 0.1)</td>
<td id="76F92454FFC7E3EFAA13FD6F12F55FED" box="[1113,1237,676,737]" gridcol="5" gridrow="4" pageId="7" pageNumber="8">2.4 (± 0.2)</td>
<td id="76F92454FFC7E3EFAAA0FD6F13465FED" box="[1258,1382,676,737]" gridcol="6" gridrow="4" pageId="7" pageNumber="8">0.7 (± 0.1)</td>
</tr>
<tr id="35284D28FFC7E3EFAE82FD3913465E01" box="[200,1382,754,781]" gridrow="5" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FD3914295E01" box="[200,521,754,781]" gridcol="0" gridrow="5" pageId="7" pageNumber="8">
<taxonomicName id="4C1834E9FFC71C17AE82FD3817FD5E01" authority="El Yeso" authorityName="El Yeso" box="[200,477,754,781]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC71C17AE82FD38175C5E00" box="[200,380,754,780]" italics="true" pageId="7" pageNumber="8">P. antipodarum</emphasis>
El Yeso
</taxonomicName>
</th>
<td id="76F92454FFC7E3EFAC2AFD39145D5E01" box="[608,637,754,781]" gridcol="1" gridrow="5" pageId="7" pageNumber="8">30</td>
<td id="76F92454FFC7E3EFACD9FD39152F5E01" box="[659,783,754,781]" gridcol="2" gridrow="5" pageId="7" pageNumber="8">1.8 (± 0.2)</td>
<td id="76F92454FFC7E3EFAD66FD3915885E01" box="[812,936,754,781]" gridcol="3" gridrow="5" pageId="7" pageNumber="8">1.4 (± 0.1)</td>
<td id="76F92454FFC7E3EFAD8DFD3912635E01" box="[967,1091,754,781]" gridcol="4" gridrow="5" pageId="7" pageNumber="8">1.0 (± 0.1)</td>
<td id="76F92454FFC7E3EFAA13FD3912F55E01" box="[1113,1237,754,781]" gridcol="5" gridrow="5" pageId="7" pageNumber="8">2.2 (± 0.2)</td>
<td id="76F92454FFC7E3EFAAA0FD3913465E01" box="[1258,1382,754,781]" gridcol="6" gridrow="5" pageId="7" pageNumber="8">1.2 (± 0.1)</td>
</tr>
<tr id="35284D28FFC7E3EFAE82FCE413465E46" box="[200,1382,815,842]" gridrow="6" pageId="7" pageNumber="8">
<th id="76F92454FFC7E3EFAE82FCE414295E46" box="[200,521,815,842]" gridcol="0" gridrow="6" pageId="7" pageNumber="8">
<taxonomicName id="4C1834E9FFC71C17AE82FCFB14295E46" authority="Lo Carreno" authorityName="Lo Carreno" box="[200,521,816,842]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="7" pageNumber="8" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC71C17AE82FCFB175C5E46" box="[200,380,816,842]" italics="true" pageId="7" pageNumber="8">P. antipodarum</emphasis>
Lo Carreño
</taxonomicName>
</th>
<td id="76F92454FFC7E3EFAC2AFCE4145D5E46" box="[608,637,815,842]" gridcol="1" gridrow="6" pageId="7" pageNumber="8">7</td>
<td id="76F92454FFC7E3EFACD9FCE4152F5E46" box="[659,783,815,842]" gridcol="2" gridrow="6" pageId="7" pageNumber="8">2.6 (± 0.2)</td>
<td id="76F92454FFC7E3EFAD66FCE415885E46" box="[812,936,815,842]" gridcol="3" gridrow="6" pageId="7" pageNumber="8">2.1 (± 0.2)</td>
<td id="76F92454FFC7E3EFAD8DFCE412635E46" box="[967,1091,815,842]" gridcol="4" gridrow="6" pageId="7" pageNumber="8">1.4 (± 0.1)</td>
<td id="76F92454FFC7E3EFAA13FCE412F55E46" box="[1113,1237,815,842]" gridcol="5" gridrow="6" pageId="7" pageNumber="8">3.2 (± 0.2)</td>
<td id="76F92454FFC7E3EFAAA0FCE413465E46" box="[1258,1382,815,842]" gridcol="6" gridrow="6" pageId="7" pageNumber="8">1.7 (± 0.3)</td>
</tr>
</table>
</paragraph>
<caption id="DF671FE2FFC71C17AEF7F84114675AE0" httpUri="https://zenodo.org/record/2824380/files/figure.png" pageId="7" pageNumber="8" startId="7.[189,232,1930,1956]" targetBox="[196,1349,961,1840]" targetPageId="7">
<paragraph id="8BA74F6AFFC71C17AEF7F84114675AE0" blockId="7.[189,1398,1930,2028]" pageId="7" pageNumber="8">
<emphasis id="B96C9378FFC71C17AEF7F841172B5AA9" bold="true" box="[189,267,1930,1957]" pageId="7" pageNumber="8">Fig. 5.</emphasis>
Bayesian tree based on COI sequences. Numbers at nodes indicate posterior probability values (only given if Ż 0.95). Names in bold refer to new sequences reported in this paper. Numbers following taxa refer to GenBank sequences.
</paragraph>
</caption>
<paragraph id="8BA74F6AFFC81C18AEF7FEC015415C46" blockId="8.[189,1398,267,330]" pageId="8" pageNumber="9">
in the morphometric space (
<figureCitation id="132353EFFFC81C18AC41FEC014755C29" box="[523,597,267,293]" captionStart="Fig" captionStartId="6.[189,232,1966,1992]" captionTargetBox="[194,1390,1018,1887]" captionTargetId="figure@6.[187,1395,1008,1895]" captionTargetPageId="6" captionText="Fig. 4. PCA of Potamolithus populations and Potamopyrgus antipodarum (Gray, 1843) collected from central Chile." httpUri="https://zenodo.org/record/2824374/files/figure.png" pageId="8" pageNumber="9">Fig. 4</figureCitation>
). In this analysis, the first two components accounted cumulatively for 95.27% of the variance (PC1: 79.78%; PC2: 15.49%).
</paragraph>
<paragraph id="8BA74F6AFFC81C18AEF7FEBA17875C87" blockId="8.[189,423,369,395]" box="[189,423,369,395]" pageId="8" pageNumber="9">
<heading id="D0EFF806FFC81C18AEF7FEBA17875C87" bold="true" box="[189,423,369,395]" fontSize="11" level="3" pageId="8" pageNumber="9" reason="3">
<emphasis id="B96C9378FFC81C18AEF7FEBA17875C87" bold="true" box="[189,423,369,395]" pageId="8" pageNumber="9">Molecular analysis</emphasis>
</heading>
</paragraph>
<paragraph id="8BA74F6AFFC81C18AEF7FE6B15275EBD" blockId="8.[189,1399,416,945]" pageId="8" pageNumber="9">
The COI phylogenetic analysis grouped the original sequences and those downloaded from GenBank into two main clades,
<taxonomicName id="4C1834E9FFC81C18AFF6FE0F143F5CD2" authorityName="Thiele" authorityYear="1925" box="[444,543,452,478]" class="Gastropoda" family="Tateidae" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="family">Tateidae</taxonomicName>
and
<taxonomicName id="4C1834E9FFC81C18AC1DFE0F14D75CD2" baseAuthorityName="Hershler &amp; Thompson" baseAuthorityYear="1992" box="[599,759,452,478]" class="Gastropoda" family="Cochliopidae" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="family">Cochliopidae</taxonomicName>
, respectively, both supported by posterior probabilities (p.p.) of 1.00 (
<figureCitation id="132353EFFFC81C18AF28FE2317885F0F" box="[354,424,488,515]" captionStart="Fig" captionStartId="7.[189,232,1930,1956]" captionTargetBox="[196,1349,961,1840]" captionTargetId="figure@7.[189,1398,954,1852]" captionTargetPageId="7" captionText="Fig. 5. Bayesian tree based on COI sequences. Numbers at nodes indicate posterior probability values (only given if Ż 0.95). Names in bold refer to new sequences reported in this paper. Numbers following taxa refer to GenBank sequences." httpUri="https://zenodo.org/record/2824380/files/figure.png" pageId="8" pageNumber="9">Fig. 5</figureCitation>
). Our original sequences clustered in the first clade, either in the genus
<taxonomicName id="4C1834E9FFC81C18AA90FE2313565F0E" authorityName="Pilsbry" authorityYear="1896" box="[1242,1398,488,514]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18AA90FE2313565F0E" box="[1242,1398,488,514]" italics="true" pageId="8" pageNumber="9">Potamolithus</emphasis>
</taxonomicName>
or
<taxonomicName id="4C1834E9FFC81C18AEA8FDC617AC5F2A" box="[226,396,525,550]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18AEA8FDC617AC5F2A" box="[226,396,525,550]" italics="true" pageId="8" pageNumber="9">Potamopyrgus</emphasis>
</taxonomicName>
, both groups inferred with high node support (0.97 and 1.00 p.p., respectively). The sequences of the slender morphotype from El Yeso Spring and Lo Carreño were identified as
<taxonomicName id="4C1834E9FFC81C18AEF7FD9E17515F62" box="[189,369,596,622]" class="Gastropoda" family="Hydrobiidae" genus="Potamopyrgus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="antipodarum">
<emphasis id="B96C9378FFC81C18AEF7FD9E17515F62" box="[189,369,596,622]" italics="true" pageId="8" pageNumber="9">P. antipodarum</emphasis>
</taxonomicName>
, and those of the thicker one as representatives of
<taxonomicName id="4C1834E9FFC81C18ADF3FD9F12755F62" authorityName="Pilsbry" authorityYear="1896" box="[953,1109,596,622]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18ADF3FD9F12755F62" box="[953,1109,596,622]" italics="true" pageId="8" pageNumber="9">Potamolithus</emphasis>
</taxonomicName>
(
<figureCitation id="132353EFFFC81C18AA2FFD9F128C5F63" box="[1125,1196,596,623]" captionStart="Fig" captionStartId="7.[189,232,1930,1956]" captionTargetBox="[196,1349,961,1840]" captionTargetId="figure@7.[189,1398,954,1852]" captionTargetPageId="7" captionText="Fig. 5. Bayesian tree based on COI sequences. Numbers at nodes indicate posterior probability values (only given if Ż 0.95). Names in bold refer to new sequences reported in this paper. Numbers following taxa refer to GenBank sequences." httpUri="https://zenodo.org/record/2824380/files/figure.png" pageId="8" pageNumber="9">Fig. 5</figureCitation>
). The snails from El Colorado, Viña Casas del Maule, Puerto Chico, “
<taxonomicName id="4C1834E9FFC81C18AD42FDB315545F9E" authorityName="Stimpson" authorityYear="1865" box="[776,884,632,658]" class="Gastropoda" family="Cochliopidae" genus="Heleobia" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18AD42FDB315545F9E" box="[776,884,632,658]" italics="true" pageId="8" pageNumber="9">Heleobia</emphasis>
</taxonomicName>
” sp. from Uspallata and “
<taxonomicName id="4C1834E9FFC81C18AAD2FDB313245F9E" authorityName="Stimpson" authorityYear="1865" box="[1176,1284,632,658]" class="Gastropoda" family="Cochliopidae" genus="Heleobia" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18AAD2FDB313245F9E" box="[1176,1284,632,658]" italics="true" pageId="8" pageNumber="9">Heleobia</emphasis>
</taxonomicName>
<taxonomicName id="4C1834E9FFC81C18AB5FFDB313575F9E" authorityName="Pilsbry" authorityYear="1911" box="[1301,1399,632,658]" class="Gastropoda" family="Cochliopidae" genus="Littoridina" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="hatcheri">
<emphasis id="B96C9378FFC81C18AB5FFDB313575F9E" box="[1301,1399,632,658]" italics="true" pageId="8" pageNumber="9">hatcheri</emphasis>
</taxonomicName>
from Aguas Negras in
<collectingCountry id="F30F0FFAFFC81C18AF99FD5014685FB9" box="[467,584,667,693]" name="Argentina" pageId="8" pageNumber="9">Argentina</collectingCountry>
retrieved from GenBank were also recovered among
<taxonomicName id="4C1834E9FFC81C18AA90FD5013565FB9" authorityName="Pilsbry" authorityYear="1896" box="[1242,1398,667,693]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18AA90FD5013565FB9" box="[1242,1398,667,693]" italics="true" pageId="8" pageNumber="9">Potamolithus</emphasis>
</taxonomicName>
species. The COI genetic distances among
<taxonomicName id="4C1834E9FFC81C18AC82FD74150B5FD5" authorityName="Thiele" authorityYear="1925" box="[712,811,703,729]" class="Gastropoda" family="Tateidae" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="family">Tateidae</taxonomicName>
species/populations from South America ranged between 0.2% and 17.0% (
<tableCitation id="C69A7AD1FFC81C18AC42FD2814465FF1" box="[520,614,739,765]" captionStart="Table 3" captionStartId="10.[189,258,268,294]" captionTargetPageId="10" captionText="Table 3. Percent of mean sequence variation (based on p-distance) of COI data among South American species/populations belonging to the Tateidae." httpUri="http://table.plazi.org/id/DF671FE2FFCA1C1AAEF7FEC714FA5C44" pageId="8" pageNumber="9" tableUuid="DF671FE2FFCA1C1AAEF7FEC714FA5C44">Table 3</tableCitation>
). The genetic distances between
<taxonomicName id="4C1834E9FFC81C18ADB4FD2F12905FF1" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[1022,1200,740,765]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC81C18ADB4FD2F12905FF1" box="[1022,1200,740,765]" italics="true" pageId="8" pageNumber="9">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC81C18AAF1FD2813615FF2" box="[1211,1345,739,766]" pageId="8" pageNumber="9" rank="species">comb. nov.</taxonomicNameLabel>
and snails from Puerto Chico were estimated at 6.77.2%. In the Bayesian tree, they were placed in different subclades. The population from Viña Casas del Maule grouped with “
<taxonomicName id="4C1834E9FFC81C18AA5EFCE012A05E49" authorityName="Stimpson" authorityYear="1865" box="[1044,1152,811,837]" class="Gastropoda" family="Cochliopidae" genus="Heleobia" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="genus">
<emphasis id="B96C9378FFC81C18AA5EFCE012A05E49" box="[1044,1152,811,837]" italics="true" pageId="8" pageNumber="9">Heleobia</emphasis>
</taxonomicName>
” sp. from Uspallata (1.00 p.p.); they differed genetically from
<taxonomicName id="4C1834E9FFC81C18ACE0FC9B15775E65" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[682,855,848,873]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC81C18ACE0FC9B15775E65" box="[682,855,848,873]" italics="true" pageId="8" pageNumber="9">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC81C18AD14FC8415FF5E65" box="[862,991,847,873]" pageId="8" pageNumber="9" rank="species">comb. nov.</taxonomicNameLabel>
by about 5.0%. On the other hand, the sequence divergence between the population from El Colorado and
<taxonomicName id="4C1834E9FFC81C18AA4BFCB8128E5E80" authorityName="Collado &amp; Aguayo &amp; Cazzaniga &amp; Gutiérrez Gregoric &amp; Lucía &amp; Haase" authorityYear="2019" baseAuthorityName="Biese" baseAuthorityYear="1944" box="[1025,1198,883,908]" class="Gastropoda" family="Hydrobiidae" genus="Potamolithus" kingdom="Animalia" order="Littorinimorpha" pageId="8" pageNumber="9" phylum="Mollusca" rank="species" species="santiagensis" status="comb. nov.">
<emphasis id="B96C9378FFC81C18AA4BFCB8128E5E80" box="[1025,1198,883,908]" italics="true" pageId="8" pageNumber="9">P. santiagensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25F2E03FFC81C18AAFFFCB813175E81" box="[1205,1335,883,909]" pageId="8" pageNumber="9" rank="species">comb. nov.</taxonomicNameLabel>
from Yeso Spring and Lo Carreño was low (0.00.6%).
</paragraph>
</subSubSection>
</treatment>
</document>