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<mods:title id="BDF1630A54E596503B6C77FAED73060D">Decrypting the feared genus Hiatella (Bivalvia): South American species</mods:title>
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<mods:namePart id="0097F6895E98A3211568384460ABB67B">Zelaya, Diego G.</mods:namePart>
<mods:affiliation id="B61D71AC31967BFA6FA9AE2618362FED">Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina &amp; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento Biodiversidad y Biología Experimental, Ciudad Universitaria, Pabellón 2, 4 ° Piso, Buenos Aires, Argentina</mods:affiliation>
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<paragraph id="8BF336B6FFC1FFD6FF32FF30DA91F89D" blockId="4.[234,642,1879,1906]" box="[234,642,1879,1906]" pageId="4" pageNumber="886">
<heading id="D0BB81DAFFC1FFD6FF32FF30DA91F89D" bold="true" box="[234,642,1879,1906]" centered="true" fontSize="11" level="2" pageId="4" pageNumber="886" reason="2">
<taxonomicName id="4C4C4D35FFC1FFD6FF32FF30DA91F89D" ID-CoL="3LHVD" authority="(d'Orbigny, 1846)" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[234,642,1879,1906]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC1FFD6FF32FF30DA91F89D" bold="true" box="[234,642,1879,1906]" pageId="4" pageNumber="886">
<emphasis id="B938EAA4FFC1FFD6FF32FF30D9AEF89E" bold="true" box="[234,445,1879,1906]" italics="true" pageId="4" pageNumber="886">Hiatella meridionalis</emphasis>
(d’Orbigny, 1846)
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<subSubSection id="C356653DFFC1FFD6FEDCFFF2DA7BF843" box="[260,616,1941,1968]" pageId="4" pageNumber="886" type="description">
<paragraph id="8BF336B6FFC1FFD6FEDCFFF2DA7BF843" blockId="4.[260,616,1941,1968]" box="[260,616,1941,1968]" pageId="4" pageNumber="886">
<emphasis id="B938EAA4FFC1FFD6FEDCFFF2DA7BF843" bold="true" box="[260,616,1941,1968]" pageId="4" pageNumber="886">
(
<figureCitation id="13772A33FFC1FFD6FED6FFF2D96AF843" box="[270,377,1941,1967]" captionStart="Figure 3" captionStartId="5.[129,194,1708,1732]" captionTargetBox="[230,1372,144,1680]" captionTargetId="figure-5@5.[230,1372,144,1680]" captionTargetPageId="5" captionText="Figure 3. Early ontogeny shells of Hiatella meridionalis (A–L), Hiatella umbonata (M–O) and Hiatella barnea (P). A, C, Saxicava meridionalis: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, Saxicava lebruni, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P." figureDoi="http://doi.org/10.5281/zenodo.10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="4" pageNumber="886">Figs 3A–L</figureCitation>
, 
<figureCitation id="13772A33FFC1FFD6FE5CFFF1D981F85C" box="[388,402,1942,1968]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="4" pageNumber="886">4</figureCitation>
, 
<figureCitation id="13772A33FFC1FFD6FE43FFF1D9BAF85C" box="[411,425,1942,1968]" captionStart="Figure 5" captionStartId="7.[129,194,1708,1732]" captionTargetBox="[198,1405,144,1680]" captionTargetId="figure-90@7.[198,1405,144,1680]" captionTargetPageId="7" captionText="Figure 5. Shells of Hiatella meridionalis, inner views and hinge teeth. A, specimen from Burdwood Bank, MACN-In 44157. B, Saxicava subantarctica, lectotype, RBINS MT753. C, Saxicava chilensis, original illustration. D, H, specimen from Fiordo Ponsonby, MACN-In 44282. E–G, DNA vouchers: H38 (E) and H40 (F, G). Scale bars: 10 mm in A–C, F, G; 2 mm in D; 5 mm in E; 1 mm in H." figureDoi="http://doi.org/10.5281/zenodo.10470293" httpUri="https://zenodo.org/record/10470293/files/figure.png" pageId="4" pageNumber="886">5</figureCitation>
, 
<figureCitation id="13772A33FFC1FFD6FE6BFFF2DA0FF85C" box="[435,540,1941,1968]" captionStart="Figure 6" captionStartId="8.[113,178,1775,1799]" captionTargetBox="[186,1387,145,1746]" captionTargetId="figure-7@8.[184,1388,144,1747]" captionTargetPageId="8" captionText="Figure 6. Anatomy of Hiatella species:Hiatella meridionalis (A, B, G, J) from the Magellan Strait (MACN-In 12414), Hiatella umbonata (C, D, H, K) from Burdwood Bank (MACN-In 44270) and Hiatella barnea (E, F, I, L) from Chilean ḩords (MACN-In 44278). A, C, E, general view with right valve removed.B, D, F, right view with right mantle fold removed.G–I, right gill. J–L, foot. Abbreviations: aa, anterior adductor muscle; b, byssus; esr, exhalant siphon retractor muscle; f, foot; g, gill; go, gonad; h, heel; id, inner demibranch; isr, inhalant siphon retractor muscle; od, outer demibranch; pa, posterior adductor muscle; t, toe; vm, visceral mass. Scale bars:10 mm in A–F; 2 mm in G–L." figureDoi="http://doi.org/10.5281/zenodo.10470295" httpUri="https://zenodo.org/record/10470295/files/figure.png" pageId="4" pageNumber="886">6A, B, G, J</figureCitation>
, 
<figureCitation id="13772A33FFC1FFD6FDFEFFF1DA4DF843" box="[550,606,1941,1968]" captionStart="Figure 7" captionStartId="9.[129,194,1708,1732]" captionTargetBox="[192,1410,144,1680]" captionTargetId="figure-107@9.[192,1410,144,1680]" captionTargetPageId="9" captionText="Figure 7. Living specimens of Hiatella: Hiatella umbonata (A–E) from Burdwood Bank (A, C) and the Argentine continental margin (B, D, E); Hiatella meridionalis (F, G) from Puerto Edén (F) and Magellan Strait (G); and Hiatella barnea (H) from ºuellón. Arrowheads (B, E) point to specimens of Hiatella." figureDoi="http://doi.org/10.5281/zenodo.10470297" httpUri="https://zenodo.org/record/10470297/files/figure.png" pageId="4" pageNumber="886">7F, G</figureCitation>
)
</emphasis>
</paragraph>
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<subSubSection id="C356653DFFC1FFD6FFA9FFDADCC3F8CB" pageId="4" pageNumber="886" type="reference_group">
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<taxonomicName id="4C4C4D35FFC1FFD6FFA9FFDADA22F838" authority="d'Orbigny, 1846: 521" authorityName="d'Orbigny" authorityPageNumber="521" authorityYear="1846" box="[113,561,1980,2004]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="meriodionalis">
<emphasis id="B938EAA4FFC1FFD6FFA9FFDAD942F838" box="[113,337,1980,2004]" italics="true" pageId="4" pageNumber="886">Saxicava meriodionalis</emphasis>
d’Orbigny, 1846: 521
</taxonomicName>
, pl. 81, figs 21, 22.
</paragraph>
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<treatmentCitation id="0AED10A7FFC1FFD6FC9DFD5EDCBEFABD" author="Hupe LH" box="[837,1197,1337,1361]" page="379" pageId="4" pageNumber="886" year="1854">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFD5EDCBEFABD" ID-CoL="6Y3B2" authority="Hupe, 1854: 379" authorityName="Hupe" authorityPageNumber="379" authorityYear="1854" box="[837,1197,1337,1361]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="chilensis">
<emphasis id="B938EAA4FFC1FFD6FC9DFD5EDBE0FABD" box="[837,1011,1337,1361]" italics="true" pageId="4" pageNumber="886">Saxicava chilensis</emphasis>
<bibRefCitation id="EFDD4B47FFC1FFD6FC23FD5EDCBEFABD" author="Hupe LH" box="[1019,1197,1337,1361]" pageId="4" pageNumber="886" pagination="1854 - 1858" refId="ref17579" refString="Hupe LH. Moluscos. In: Historia fisica y politica de Chile, Fauna Chilena. Zoologia, Vol. 8 [1854], Atlas: Malacologia + Conquiliologia [1858]. Paris: Gay; Santiago: Museo de Historia Natural de Santiago, 1854 - 1858." type="book chapter" year="1854">Hupé, 1854: 379</bibRefCitation>
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; Hupé 1858: pl. 8, figs 7, 7a; 
<bibRefCitation id="EFDD4B47FFC1FFD6FC97FD3FDC94FA9C" author="de Rochebrune AAT &amp; Mabille JF" box="[847,1159,1368,1392]" pageId="4" pageNumber="886" pagination="1 - 29" refId="ref17084" refString="de Rochebrune AAT, Mabille JF. Mollusques. Mission Scientifique du Cap Horn 1882 - 1883 1889; 6 (Zoologie 2): H. 1 - 29." type="journal article" year="1889">Rochebrune and Mabille 1889</bibRefCitation>
: H101.
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</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFD1FDC20FA43" blockId="4.[810,1459,1337,1831]" pageId="4" pageNumber="886">
<treatmentCitationGroup id="AB5C1198FFC1FFD6FC9DFD1FDC20FA43" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFD1FDC10FA63" ID-CoL="7T3PK" authorityName="Philippi" authorityYear="1845" box="[837,1027,1400,1423]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="antarctica">
<emphasis id="B938EAA4FFC1FFD6FC9DFD1FDC10FA63" box="[837,1027,1400,1423]" italics="true" pageId="4" pageNumber="886">Saxicava antarctica</emphasis>
</taxonomicName>
: 
<treatmentCitation id="0AED10A7FFC1FFD6FBD7FD1FDD69FA7C" author="von Martens KE &amp; Pfeffer GJ" box="[1039,1402,1399,1424]" page="113" pageId="4" pageNumber="886" year="1886">
<bibRefCitation id="EFDD4B47FFC1FFD6FBD7FD1FDD69FA7C" author="von Martens KE &amp; Pfeffer GJ" box="[1039,1402,1399,1424]" pageId="4" pageNumber="886" pagination="65 - 135" refId="ref19438" refString="von Martens KE, Pfeffer GJ. Die Mollusken von Sud-Georgien nach der Ausbeute der Deutschen Station 1882 - 83. Hamburgischen Wissenscahfllichen Anstalten, Jahrbuch 1886; 7: 65 - 135." type="journal article" year="1886">Martens and Pfeffer 1886: 113–114</bibRefCitation>
</treatmentCitation>
, pl. 4, fig. 2 (not 
<bibRefCitation id="EFDD4B47FFC1FFD6FC4AFDF0DC30FA43" author="Philippi T" box="[914,1059,1431,1455]" pageId="4" pageNumber="886" pagination="50 - 71" refId="ref18459" refString="Philippi T. Diagnosen einiger neuen Conchylien. Archiv fur Naturgeschichte 1845; 11: 50 - 71." type="journal article" year="1845">Philippi, 1845</bibRefCitation>
).
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<paragraph id="8BF336B6FFC1FFD6FC9DFDD0DC5DFA02" blockId="4.[810,1459,1337,1831]" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFDD0DCF9FA22" ID-CoL="79RB7" authority="Mabille and Rochebrune" authorityName="Mabille and Rochebrune" box="[837,1258,1462,1486]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="lebruni">
<emphasis id="B938EAA4FFC1FFD6FC9DFDD0DBF5FA22" box="[837,998,1462,1486]" italics="true" pageId="4" pageNumber="886">Saxicava lebruni</emphasis>
Mabille and Rochebrune
</taxonomicName>
in 
<bibRefCitation id="EFDD4B47FFC1FFD6FAD0FDD1DBA4FA02" author="de Rochebrune AAT &amp; Mabille JF" pageId="4" pageNumber="886" pagination="1 - 29" refId="ref17084" refString="de Rochebrune AAT, Mabille JF. Mollusques. Mission Scientifique du Cap Horn 1882 - 1883 1889; 6 (Zoologie 2): H. 1 - 29." type="journal article" year="1889">Rochebrune and Mabille, 1889</bibRefCitation>
: H101–H102.
</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFD92DC5DF9C0" blockId="4.[810,1459,1337,1831]" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFD92DCF5F9E1" authority="Mabille and Rochebrune" authorityName="Mabille and Rochebrune" box="[837,1254,1525,1549]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="mollis">
<emphasis id="B938EAA4FFC1FFD6FC9DFD92DBCEF9E1" box="[837,989,1525,1549]" italics="true" pageId="4" pageNumber="886">Saxicava mollis</emphasis>
Mabille and Rochebrune
</taxonomicName>
in 
<bibRefCitation id="EFDD4B47FFC1FFD6FADFFD92DBA4F9C0" author="de Rochebrune AAT &amp; Mabille JF" pageId="4" pageNumber="886" pagination="1 - 29" refId="ref17084" refString="de Rochebrune AAT, Mabille JF. Mollusques. Mission Scientifique du Cap Horn 1882 - 1883 1889; 6 (Zoologie 2): H. 1 - 29." type="journal article" year="1889">Rochebrune and Mabille, 1889</bibRefCitation>
: H102–H103.
</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFE53DD0EF987" blockId="4.[810,1459,1337,1831]" pageId="4" pageNumber="886">
<treatmentCitationGroup id="AB5C1198FFC1FFD6FC9DFE53DB92F987" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFE53DC63F9A7" ID-CoL="7T3PK" box="[837,1136,1588,1611]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="variety" species="arctica" variety="antarctica">
<emphasis id="B938EAA4FFC1FFD6FC9DFE53DBF0F9A7" box="[837,995,1588,1611]" italics="true" pageId="4" pageNumber="886">Saxicava arctica</emphasis>
var. 
<emphasis id="B938EAA4FFC1FFD6FBD7FE53DC63F9A7" box="[1039,1136,1588,1611]" italics="true" pageId="4" pageNumber="886">antarctica</emphasis>
</taxonomicName>
: 
<treatmentCitation id="0AED10A7FFC1FFD6FBA4FE54DDA0F9A7" author="Melvill JC &amp; Standen R" box="[1148,1459,1587,1612]" page="151" pageId="4" pageNumber="886" year="1907">
<bibRefCitation id="EFDD4B47FFC1FFD6FBA4FE54DDA0F9A7" author="Melvill JC &amp; Standen R" box="[1148,1459,1587,1612]" pageId="4" pageNumber="886" pagination="119 - 157" refId="ref18005" refString="Melvill JC, Standen R. The marine Mollusca of the Scotish National Antarctic Expedition. Royal Society of Edinburgh, Transactions 1907; 46: 119 - 157." type="journal article" year="1907">Melvill and Standen 1907: 151</bibRefCitation>
</treatmentCitation>
(in part)
</treatmentCitationGroup>
(not 
<taxonomicName id="4C4C4D35FFC1FFD6FC61FE34DD1FF987" ID-CoL="7T3PK" authority="Philippi, 1845" authorityName="Philippi" authorityYear="1845" box="[953,1292,1619,1643]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="antarctica">
<emphasis id="B938EAA4FFC1FFD6FC61FE34DC64F986" box="[953,1143,1619,1642]" italics="true" pageId="4" pageNumber="886">Saxicava antarctica</emphasis>
<bibRefCitation id="EFDD4B47FFC1FFD6FBA4FE34DD1FF987" author="Philippi T" box="[1148,1292,1619,1643]" pageId="4" pageNumber="886" pagination="50 - 71" refId="ref18459" refString="Philippi T. Diagnosen einiger neuen Conchylien. Archiv fur Naturgeschichte 1845; 11: 50 - 71." type="journal article" year="1845">Philippi, 1845</bibRefCitation>
</taxonomicName>
).
</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFE15DD2BF966" blockId="4.[810,1459,1337,1831]" box="[837,1336,1650,1674]" pageId="4" pageNumber="886">
<treatmentCitationGroup id="AB5C1198FFC1FFD6FC9DFE15DD2BF966" box="[837,1336,1650,1674]" pageId="4" pageNumber="886">
<treatmentCitation id="0AED10A7FFC1FFD6FC9DFE15DCFFF966" author="Preston HB" box="[837,1260,1650,1674]" page="223" pageId="4" pageNumber="886" year="1913">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFE15DCFFF966" ID-CoL="79RBG" authority="Preston, 1913: 223" authorityName="Preston" authorityPageNumber="223" authorityYear="1913" box="[837,1260,1650,1674]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="subantarctica">
<emphasis id="B938EAA4FFC1FFD6FC9DFE15DC37F966" box="[837,1060,1650,1674]" italics="true" pageId="4" pageNumber="886">Saxicava subantarctica</emphasis>
<bibRefCitation id="EFDD4B47FFC1FFD6FBF1FE14DCFFF966" author="Preston HB" box="[1065,1260,1650,1674]" pageId="4" pageNumber="886" pagination="218 - 23" refId="ref18500" refString="Preston HB. Descriptions of fisseen new species and varieties of marine shells from the Falkland Islands. Annals and Magazine of Natural History 1913; 11: 218 - 23. hups: // doi. org / 10.1080 / 00222931308693311" type="journal article" year="1913">Preston, 1913: 223</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, fig. 12.
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFEF5DD47F925" blockId="4.[810,1459,1337,1831]" pageId="4" pageNumber="886">
<treatmentCitationGroup id="AB5C1198FFC1FFD6FC9DFEF5DD47F925" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFEF5DBF2F945" ID-CoL="6Y3BF" authorityName="Sowerby I" authorityYear="1834" box="[837,993,1681,1705]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="solida">
<emphasis id="B938EAA4FFC1FFD6FC9DFEF5DBF2F945" box="[837,993,1681,1705]" italics="true" pageId="4" pageNumber="886">Saxicava solida</emphasis>
</taxonomicName>
: 
<treatmentCitation id="0AED10A7FFC1FFD6FC2BFEF6DCEDF946" author="Carcelles AR" box="[1011,1278,1681,1706]" page="293" pageId="4" pageNumber="886" year="1944">
<bibRefCitation id="EFDD4B47FFC1FFD6FC2BFEF6DCEDF946" author="Carcelles AR" box="[1011,1278,1681,1706]" pageId="4" pageNumber="886" pagination="233 - 309" refId="ref16512" refString="Carcelles AR. Catalogo de los moluscos marinos de Puerto ºuequen (Republica Argentina). Revista del Museo de La Plata (n. s.) [Zoologia] 1944; 3: 233 - 309." type="journal article" year="1944">Carcelles 1944: 293–294</bibRefCitation>
</treatmentCitation>
, pl. 13, fig. 107; 
<treatmentCitation id="0AED10A7FFC1FFD6FCF2FED6DBFBF925" author="Carcelles AR" box="[810,1000,1713,1737]" page="82" pageId="4" pageNumber="886" year="1950">
<bibRefCitation id="EFDD4B47FFC1FFD6FCF2FED6DBFBF925" author="Carcelles AR" box="[810,1000,1713,1737]" pageId="4" pageNumber="886" pagination="41 - 100" refId="ref16551" refString="Carcelles AR. Catalogo de los moluscos marinos de la Patagonia. Anales del Museo Nahuel Huapi 1950; 2: 41 - 100." type="journal article" year="1950">Carcelles 1950: 82</bibRefCitation>
</treatmentCitation>
, pl. 5, fig. 91 (not Sowerby I, 1834).
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFEB7DC99F8EB" blockId="4.[810,1459,1337,1831]" pageId="4" pageNumber="886">
<treatmentCitationGroup id="AB5C1198FFC1FFD6FC9DFEB7DC99F8EB" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFEB7DC32F904" ID-CoL="3LHVD" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[837,1057,1744,1768]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC1FFD6FC9DFEB7DC32F904" box="[837,1057,1744,1768]" italics="true" pageId="4" pageNumber="886">Hiatella meridionalis</emphasis>
</taxonomicName>
: 
<treatmentCitation id="0AED10A7FFC1FFD6FBE5FEB7DD03F904" author="Zelaya DG" box="[1085,1296,1744,1768]" page="117" pageId="4" pageNumber="886" year="2005">
<bibRefCitation id="EFDD4B47FFC1FFD6FBE5FEB7DD03F904" author="Zelaya DG" box="[1085,1296,1744,1768]" pageId="4" pageNumber="886" pagination="113 - 22" refId="ref19563" refString="Zelaya DG. The bivalves from the Scotia Arc islands: species richness and faunal affinities. Scientia Marina 2005; 69: 113 - 22." type="journal article" year="2005">Zelaya 2005: 117</bibRefCitation>
</treatmentCitation>
; 
<bibRefCitation id="EFDD4B47FFC1FFD6FAF1FEB7DBE0F8E4" author="Simone LRL &amp; Penchaszadeh PE" pageId="4" pageNumber="886" pagination="119 - 27" refId="ref18906" refString="Simone LRL, Penchaszadeh PE. Redescription of Hiatella meridionalis d'Orbigny, 1846 (Mollusca, Bivalvia, Hiatellidae) from Argentina. Papeis Avulsos de Zoologia 2008; 48: 119 - 27." type="journal article" year="2008">Simone and Penchaszadeh 2008</bibRefCitation>
: fig. 18 (only).
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BF336B6FFC1FFD6FC9DFF68DCC3F8CB" blockId="4.[810,1459,1337,1831]" box="[837,1232,1807,1831]" pageId="4" pageNumber="886">
<taxonomicName id="4C4C4D35FFC1FFD6FC9DFF68DB87F8CB" ID-CoL="7P57B" authorityName="Bosc" authorityYear="1801" box="[837,916,1807,1831]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="genus">
<emphasis id="B938EAA4FFC1FFD6FC9DFF68DB87F8CB" box="[837,916,1807,1831]" italics="true" pageId="4" pageNumber="886">Hiatella</emphasis>
</taxonomicName>
A: 
<bibRefCitation id="EFDD4B47FFC1FFD6FC60FF68DCD8F8CB" author="Laakkonen HM &amp; Strelkov P &amp; Vainola R" box="[952,1227,1807,1831]" pageId="4" pageNumber="886" pagination="383 - 402" refId="ref17723" refString="Laakkonen HM, Strelkov P, Vainola R. Molecular lineage diversity and inter-oceanic biogeographical history of Hiatella (Mollusca, Bivalvia). Zoologica Scripta 2015; 44: 383 - 402." type="journal article" year="2015">
Laakkonen 
<emphasis id="B938EAA4FFC1FFD6FBF7FF68DC4EF8CB" box="[1071,1117,1807,1831]" italics="true" pageId="4" pageNumber="886">et al.</emphasis>
2015: 389
</bibRefCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C356653DFFC1FFD4FCF2FF23D9DDF83D" lastPageId="6" lastPageNumber="888" pageId="4" pageNumber="886" type="materials_examined">
<paragraph id="8BF336B6FFC1FFD6FCF2FF23DBAFF835" blockId="4.[810,1459,1859,2009]" pageId="4" pageNumber="886">
<emphasis id="B938EAA4FFC1FFD6FCF2FF23DBAFF8B7" box="[810,956,1859,1883]" italics="true" pageId="4" pageNumber="886">
<typeStatus id="54F78814FFC1FFD6FCF2FF23DB49F8B7" box="[810,858,1860,1883]" pageId="4" pageNumber="886">Type</typeStatus>
localities:
</emphasis>
<collectingCountry id="F35B7626FFC1FFD6FC15FF22DC76F8B7" box="[973,1125,1859,1888]" name="Falkland Islands" pageId="4" pageNumber="886">Îles Malouines</collectingCountry>
(= 
<collectingCountry id="F35B7626FFC1FFD6FB57FF24DCE3F8B7" box="[1167,1264,1859,1883]" name="Falkland Islands" pageId="4" pageNumber="886">Malvinas</collectingCountry>
/ 
<collectingCountry id="F35B7626FFC1FFD6FAD9FF24DDBFF8B7" box="[1281,1452,1859,1883]" name="Falkland Islands" pageId="4" pageNumber="886">Falkland Islands</collectingCountry>
) (
<taxonomicName id="4C4C4D35FFC1FFD6FCEDFF04DC1CF897" authorityName="d'Orbigny" authorityYear="1846" box="[821,1039,1891,1915]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC1FFD6FCEDFF04DC1CF897" box="[821,1039,1891,1915]" italics="true" pageId="4" pageNumber="886">Saxicava meridionalis</emphasis>
</taxonomicName>
); Calbuco, [
<geoCoordinate id="EE785071FFC1FFD6FB4FFF04DCE4F897" box="[1175,1271,1889,1915]" degrees="41" direction="south" minutes="46" orientation="latitude" pageId="4" pageNumber="886" precision="925" value="-41.766666">
41°46 
<emphasis id="B938EAA4FFC1FFD6FB0FFF06DCCEF896" box="[1239,1245,1889,1914]" italics="true" pageId="4" pageNumber="886">ʹ</emphasis>
S
</geoCoordinate>
], 
<collectingCountry id="F35B7626FFC1FFD6FAD6FF04DD55F897" box="[1294,1350,1891,1915]" name="Chile" pageId="4" pageNumber="886">Chile</collectingCountry>
(
<taxonomicName id="4C4C4D35FFC1FFD6FA83FF04DB6AF876" authorityName="Hupe" authorityYear="1854" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="chilensis">
<emphasis id="B938EAA4FFC1FFD6FA83FF04DB6AF876" italics="true" pageId="4" pageNumber="886">Saxicava chilensis</emphasis>
</taxonomicName>
); Baie Orange [= Bahia Orange] (
<taxonomicName id="4C4C4D35FFC1FFD6FADBFFE5DDB8F876" box="[1283,1451,1922,1946]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="lebruni">
<emphasis id="B938EAA4FFC1FFD6FADBFFE5DDB8F876" box="[1283,1451,1922,1946]" italics="true" pageId="4" pageNumber="886">Saxicava lebruni</emphasis>
</taxonomicName>
; 
<taxonomicName id="4C4C4D35FFC1FFD6FCF2FFC5DBC7F855" box="[810,980,1953,1977]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="mollis">
<emphasis id="B938EAA4FFC1FFD6FCF2FFC5DBC7F855" box="[810,980,1953,1977]" italics="true" pageId="4" pageNumber="886">Saxicava mollis</emphasis>
</taxonomicName>
); [
<collectingCountry id="F35B7626FFC1FFD6FBDEFFC6DC7AF855" box="[1030,1129,1953,1977]" name="Falkland Islands" pageId="4" pageNumber="886">Malvinas</collectingCountry>
]/ 
<collectingCountry id="F35B7626FFC1FFD6FBAFFFC6DD24F855" box="[1143,1335,1953,1977]" name="Falkland Islands" pageId="4" pageNumber="886">Falkland Islands</collectingCountry>
(
<taxonomicName id="4C4C4D35FFC1FFD6FA83FFC5DBBFF835" authorityName="Preston" authorityYear="1913" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="4" pageNumber="886" phylum="Mollusca" rank="species" species="subantarctica">
<emphasis id="B938EAA4FFC1FFD6FA83FFC5DBBFF835" italics="true" pageId="4" pageNumber="886">Saxicava subantarctica</emphasis>
</taxonomicName>
).
</paragraph>
<caption id="DF33663EFFC0FFD7FF59FECBD935F86B" ID-DOI="http://doi.org/10.5281/zenodo.10470289" ID-Zenodo-Dep="10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="5" pageNumber="887" startId="5.[129,194,1708,1732]" targetBox="[230,1372,144,1680]" targetPageId="5" targetType="figure">
<paragraph id="8BF336B6FFC0FFD7FF59FECBD935F86B" blockId="5.[129,1468,1708,1928]" pageId="5" pageNumber="887">
<emphasis id="B938EAA4FFC0FFD7FF59FECBD8CBF928" bold="true" box="[129,216,1708,1732]" pageId="5" pageNumber="887">Figure 3.</emphasis>
Early ontogeny shells of 
<taxonomicName id="4C4C4D35FFC0FFD7FE1AFECBDA6CF928" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[450,639,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="5" pageNumber="887" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC0FFD7FE1AFECBDA6CF928" box="[450,639,1708,1732]" italics="true" pageId="5" pageNumber="887">Hiatella meridionalis</emphasis>
</taxonomicName>
(A–L), 
<taxonomicName id="4C4C4D35FFC0FFD7FD13FECBDB90F928" authorityName="Zelaya and Marina Güller" authorityYear="2023" box="[715,899,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="5" pageNumber="887" phylum="Mollusca" rank="species" species="umbonata">
<emphasis id="B938EAA4FFC0FFD7FD13FECBDB90F928" bold="true" box="[715,899,1708,1732]" italics="true" pageId="5" pageNumber="887">Hiatella umbonata</emphasis>
</taxonomicName>
(M–O) and 
<taxonomicName id="4C4C4D35FFC0FFD7FC26FECBDC98F928" authorityName="Zelaya and Marina Güller" authorityYear="2023" baseAuthorityName="Ihering" baseAuthorityYear="1907" box="[1022,1163,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="5" pageNumber="887" phylum="Mollusca" rank="species" species="barnea">
<emphasis id="B938EAA4FFC0FFD7FC26FECBDC98F928" box="[1022,1163,1708,1732]" italics="true" pageId="5" pageNumber="887">Hiatella barnea</emphasis>
</taxonomicName>
(P). A, C, 
<taxonomicName id="4C4C4D35FFC0FFD7FB28FECBDDA6F928" authorityName="d'Orbigny" authorityYear="1846" box="[1264,1461,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="5" pageNumber="887" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC0FFD7FB28FECBDDA6F928" box="[1264,1461,1708,1732]" italics="true" pageId="5" pageNumber="887">Saxicava meridionalis</emphasis>
</taxonomicName>
: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, 
<taxonomicName id="4C4C4D35FFC0FFD7FF59FF67D905F8F4" box="[129,278,1792,1816]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="5" pageNumber="887" phylum="Mollusca" rank="species" species="lebruni">
<emphasis id="B938EAA4FFC0FFD7FF59FF67D905F8F4" box="[129,278,1792,1816]" italics="true" pageId="5" pageNumber="887">Saxicava lebruni</emphasis>
</taxonomicName>
, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P.
</paragraph>
</caption>
<caption id="DF33663EFFC3FFD4FFAAFECBDD73F917" ID-DOI="http://doi.org/10.5281/zenodo.10470291" ID-Zenodo-Dep="10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="6" pageNumber="888" startId="6.[114,179,1708,1732]" targetBox="[215,1357,144,1680]" targetPageId="6" targetType="figure">
<paragraph id="8BF336B6FFC3FFD4FFAAFECBDD73F917" blockId="6.[113,1427,1708,1788]" pageId="6" pageNumber="888">
<emphasis id="B938EAA4FFC3FFD4FFAAFECBD8D9F928" bold="true" box="[114,202,1708,1732]" pageId="6" pageNumber="888">Figure 4.</emphasis>
Shells of 
<taxonomicName id="4C4C4D35FFC3FFD4FEFBFECBD9F3F928" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[291,480,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC3FFD4FEFBFECBD9F3F928" box="[291,480,1708,1732]" italics="true" pageId="6" pageNumber="888">Hiatella meridionalis</emphasis>
</taxonomicName>
, external views. A, 
<taxonomicName id="4C4C4D35FFC3FFD4FD4CFECBDB71F928" authorityName="Preston" authorityYear="1913" box="[660,866,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="subantarctica">
<emphasis id="B938EAA4FFC3FFD4FD4CFECBDB71F928" box="[660,866,1708,1732]" italics="true" pageId="6" pageNumber="888">Saxicava subantarctica</emphasis>
</taxonomicName>
, lectotype, RBINS MT753. B, 
<taxonomicName id="4C4C4D35FFC3FFD4FB5CFECBDD1CF928" box="[1156,1295,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="mollis">
<emphasis id="B938EAA4FFC3FFD4FB5CFECBDD1CF928" box="[1156,1295,1708,1732]" italics="true" pageId="6" pageNumber="888">Saxicava mollis</emphasis>
</taxonomicName>
, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, 
<taxonomicName id="4C4C4D35FFC3FFD4FFA9FE83D915F910" box="[113,262,1764,1788]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="lebruni">
<emphasis id="B938EAA4FFC3FFD4FFA9FE83D915F910" box="[113,262,1764,1788]" italics="true" pageId="6" pageNumber="888">Saxicava lebruni</emphasis>
</taxonomicName>
, syntype, MNHN-IM-2000-31626. F, 
<taxonomicName id="4C4C4D35FFC3FFD4FDAAFE83DB02F910" authorityName="Hupe" authorityYear="1854" box="[626,785,1764,1788]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="chilensis">
<emphasis id="B938EAA4FFC3FFD4FDAAFE83DB02F910" box="[626,785,1764,1788]" italics="true" pageId="6" pageNumber="888">Saxicava chilensis</emphasis>
</taxonomicName>
, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I.
</paragraph>
</caption>
<paragraph id="8BF336B6FFC3FFD4FFA9FF7BD9DDF83D" blockId="6.[113,763,1820,2001]" pageId="6" pageNumber="888">
<emphasis id="B938EAA4FFC3FFD4FFA9FF7BD952F8D8" box="[113,321,1820,1844]" italics="true" pageId="6" pageNumber="888">Material examined:</emphasis>
<typeStatus id="54F78814FFC3FFD4FEB5FF7BD9C5F8D8" box="[365,470,1820,1844]" pageId="6" pageNumber="888" type="lectotype">Lectotype</typeStatus>
of 
<taxonomicName id="4C4C4D35FFC3FFD4FDCDFF7BDAE8F8D8" authorityName="d'Orbigny" authorityYear="1846" box="[533,763,1820,1844]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC3FFD4FDCDFF7BDAE8F8D8" box="[533,763,1820,1844]" italics="true" pageId="6" pageNumber="888">Saxicava meridionalis</emphasis>
</taxonomicName>
(
<collectionCode id="ED5DAE73FFC3FFD4FFA1FF5CD8F2F8BF" box="[121,225,1851,1875]" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34665" lsid="urn:lsid:biocol.org:col:34665" name="Natural History Museum, London" pageId="6" pageNumber="888" type="Museum">NHMUK</collectionCode>
1854.12.4.772); 
<specimenCount id="9D4AFD3FFFC3FFD4FE44FF5BDA3BF8B8" box="[412,552,1852,1876]" count="2" pageId="6" pageNumber="888" type="generic" typeStatus="syntype">two syntypes</specimenCount>
of 
<taxonomicName id="4C4C4D35FFC3FFD4FD8BFF5BDAE9F8BF" box="[595,762,1851,1875]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="lebruni">
<emphasis id="B938EAA4FFC3FFD4FD8BFF5BDAE9F8BF" box="[595,762,1851,1875]" italics="true" pageId="6" pageNumber="888">Saxicava lebruni</emphasis>
</taxonomicName>
(MNHN-IM-2000-31626); 
<specimenCount id="9D4AFD3FFFC3FFD4FE46FF3CDA36F89F" box="[414,549,1883,1907]" count="1" pageId="6" pageNumber="888" type="generic" typeStatus="syntype">one syntype</specimenCount>
of 
<taxonomicName id="4C4C4D35FFC3FFD4FD81FF3CDAE9F89E" box="[601,762,1882,1906]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="mollis">
<emphasis id="B938EAA4FFC3FFD4FD81FF3CDAE9F89E" box="[601,762,1882,1906]" italics="true" pageId="6" pageNumber="888">Saxicava mollis</emphasis>
</taxonomicName>
(MNHN-IM-2000-31625); 
<typeStatus id="54F78814FFC3FFD4FE4EFF1DD9E5F87E" box="[406,502,1914,1938]" pageId="6" pageNumber="888" type="lectotype">lectotype</typeStatus>
of 
<taxonomicName id="4C4C4D35FFC3FFD4FDC1FF1DDAE8F87E" authorityName="Preston" authorityYear="1913" box="[537,763,1914,1938]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="6" pageNumber="888" phylum="Mollusca" rank="species" species="subantarctica">
<emphasis id="B938EAA4FFC3FFD4FDC1FF1DDAE8F87E" box="[537,763,1914,1938]" italics="true" pageId="6" pageNumber="888">Saxicava subantarctica</emphasis>
</taxonomicName>
(designated herein: 
<collectionCode id="ED5DAE73FFC3FFD4FE90FFFED980F85D" box="[328,403,1945,1969]" country="Belgium" httpUri="http://biocol.org/urn:lsid:biocol.org:col:35271" lsid="urn:lsid:biocol.org:col:35271" name="Royal Belgian Institute of Natural Sciences" pageId="6" pageNumber="888" type="Museum">RBINS</collectionCode>
<collectionCode id="ED5DAE73FFC3FFD4FE45FFFED9DAF85D" box="[413,457,1945,1969]" country="Russia" name="Mus. Tinro, Vladyvostok" pageId="6" pageNumber="888">MT</collectionCode>
753); and 94 additional lots (Supporting Information, 
<collectionCode id="ED5DAE73FFC3FFD4FEA4FFDED9A6F83D" box="[380,437,1977,2001]" pageId="6" pageNumber="888">ESM</collectionCode>
1).
</paragraph>
</subSubSection>
<subSubSection id="C356653DFFC3FFD8FCF2FF7BD9D8F9D2" lastPageId="10" lastPageNumber="892" pageId="6" pageNumber="888" type="description">
<paragraph id="8BF336B6FFC3FFDBFCF2FF7BDA2CF88F" blockId="6.[810,1459,1820,2000]" lastBlockId="9.[129,778,1836,1985]" lastPageId="9" lastPageNumber="891" pageId="6" pageNumber="888">
<emphasis id="B938EAA4FFC3FFD4FCF2FF7BDBB2F8DF" box="[810,929,1820,1843]" italics="true" pageId="6" pageNumber="888">Description:</emphasis>
Shell ≤ 61.0 mm L, rectangular to ovate, longer than high, compressed to slightly inflated, with the maximum width at about the posterior third of shell length; thin to moderately solid (
<figureCitation id="13772A33FFC3FFD4FC6DFF1DDC0DF87E" box="[949,1054,1914,1938]" captionStart="Figure 3" captionStartId="5.[129,194,1708,1732]" captionTargetBox="[230,1372,144,1680]" captionTargetId="figure-5@5.[230,1372,144,1680]" captionTargetPageId="5" captionText="Figure 3. Early ontogeny shells of Hiatella meridionalis (A–L), Hiatella umbonata (M–O) and Hiatella barnea (P). A, C, Saxicava meridionalis: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, Saxicava lebruni, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P." figureDoi="http://doi.org/10.5281/zenodo.10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="6" pageNumber="888">Figs 3A–L</figureCitation>
, 
<figureCitation id="13772A33FFC3FFD4FBF1FF1DDC25F87E" box="[1065,1078,1914,1938]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="6" pageNumber="888">4</figureCitation>
). Subequivalve in smaller specimens, slightly to markedly inequivalve in larger specimens, with one of the valves (either the right or the less) wider and larger than the other; larger valve overlapping ventrally over the opposite valve. Posterior end of shell greatly projected; anterior end moderately projected. Posterior area of shell narrow, usually flat, sometimes slightly sunken, ill defined. Posterior and ventral gaps between valves narrow. Anterodorsal margin straight, steeply sloping. Anterior margin extremely short, rounded, sometimes indistinct from anterodorsal margin. Ventral margin straight to slightly sinuous. Posterior margin rounded to obliquely flaưened, usually higher than anterior margin. Posterodorsal margin long, convex to straight. Umbo low, wide, evenly rounded; located at anterior third of shell length. Lunule narrow, depressed in smaller specimens, usually indistinct in larger specimens.
</paragraph>
<caption id="DF33663EFFC2FFD5FF59FECBDCD1F917" ID-DOI="http://doi.org/10.5281/zenodo.10470293" ID-Zenodo-Dep="10470293" httpUri="https://zenodo.org/record/10470293/files/figure.png" pageId="7" pageNumber="889" startId="7.[129,194,1708,1732]" targetBox="[198,1405,144,1680]" targetPageId="7" targetType="figure">
<paragraph id="8BF336B6FFC2FFD5FF59FECBDCD1F917" blockId="7.[129,1447,1708,1788]" pageId="7" pageNumber="889">
<emphasis id="B938EAA4FFC2FFD5FF59FECBD8CBF928" bold="true" box="[129,216,1708,1732]" pageId="7" pageNumber="889">Figure 5.</emphasis>
Shells of 
<taxonomicName id="4C4C4D35FFC2FFD5FEEAFECBD9FCF928" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[306,495,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="7" pageNumber="889" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFC2FFD5FEEAFECBD9FCF928" box="[306,495,1708,1732]" italics="true" pageId="7" pageNumber="889">Hiatella meridionalis</emphasis>
</taxonomicName>
, inner views and hinge teeth. A, specimen from Burdwood Bank, MACN-In 44157. B, 
<taxonomicName id="4C4C4D35FFC2FFD5FAC5FECBD8EAF90C" authorityName="Preston" authorityYear="1913" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="7" pageNumber="889" phylum="Mollusca" rank="species" species="subantarctica">
<emphasis id="B938EAA4FFC2FFD5FAC5FECBD8EAF90C" italics="true" pageId="7" pageNumber="889">Saxicava subantarctica</emphasis>
</taxonomicName>
, lectotype, RBINS MT753. C, 
<taxonomicName id="4C4C4D35FFC2FFD5FDC5FEAFDAAFF90C" authorityName="Hupe" authorityYear="1854" box="[541,700,1736,1760]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="7" pageNumber="889" phylum="Mollusca" rank="species" species="chilensis">
<emphasis id="B938EAA4FFC2FFD5FDC5FEAFDAAFF90C" box="[541,700,1736,1760]" italics="true" pageId="7" pageNumber="889">Saxicava chilensis</emphasis>
</taxonomicName>
, original illustration. D, H, specimen from Fiordo Ponsonby, MACN-In 44282. E–G, DNA vouchers: H38 (E) and H40 (F, G). Scale bars: 10 mm in A–C, F, G; 2 mm in D; 5 mm in E; 1 mm in H.
</paragraph>
</caption>
<caption id="DF33663EFFCDFFDAFFA9FE88DD3BF89B" ID-DOI="http://doi.org/10.5281/zenodo.10470295" ID-Zenodo-Dep="10470295" httpUri="https://zenodo.org/record/10470295/files/figure.png" pageId="8" pageNumber="890" startId="8.[113,178,1775,1799]" targetBox="[186,1387,145,1746]" targetPageId="8" targetType="figure">
<paragraph id="8BF336B6FFCDFFDAFFA9FE88DD3BF89B" blockId="8.[113,1455,1774,1911]" pageId="8" pageNumber="890">
<emphasis id="B938EAA4FFCDFFDAFFA9FE88D8DAF8EB" bold="true" box="[113,201,1775,1799]" pageId="8" pageNumber="890">Figure 6.</emphasis>
Anatomy of 
<taxonomicName id="4C4C4D35FFCDFFDAFE9AFE88D9C5F8EB" box="[322,470,1775,1799]" pageId="8" pageNumber="890">
<emphasis id="B938EAA4FFCDFFDAFE9AFE88D998F8EB" box="[322,395,1775,1799]" italics="true" pageId="8" pageNumber="890">Hiatella</emphasis>
species
</taxonomicName>
: 
<taxonomicName id="4C4C4D35FFCDFFDAFE06FE88DA88F8EB" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[478,667,1775,1799]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="8" pageNumber="890" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCDFFDAFE06FE88DA88F8EB" box="[478,667,1775,1799]" italics="true" pageId="8" pageNumber="890">Hiatella meridionalis</emphasis>
</taxonomicName>
(A, B, G, J) from the Magellan Strait (MACN-In 12414), 
<taxonomicName id="4C4C4D35FFCDFFDAFB64FE89DD66F8EA" authorityName="Zelaya and Marina Güller" authorityYear="2023" box="[1212,1397,1774,1798]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="8" pageNumber="890" phylum="Mollusca" rank="species" species="umbonata">
<emphasis id="B938EAA4FFCDFFDAFB64FE89DD66F8EA" bold="true" box="[1212,1397,1774,1798]" italics="true" pageId="8" pageNumber="890">Hiatella umbonata</emphasis>
</taxonomicName>
(C, D, H, K) from Burdwood Bank (MACN-In 44270) and 
<taxonomicName id="4C4C4D35FFCDFFDAFD58FF6CDB1EF8CF" authorityName="Zelaya and Marina Güller" authorityYear="2023" baseAuthorityName="Ihering" baseAuthorityYear="1907" box="[640,781,1803,1827]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="8" pageNumber="890" phylum="Mollusca" rank="species" species="barnea">
<emphasis id="B938EAA4FFCDFFDAFD58FF6CDB1EF8CF" box="[640,781,1803,1827]" italics="true" pageId="8" pageNumber="890">Hiatella barnea</emphasis>
</taxonomicName>
(E, F, I, L) from Chilean ḩords (MACN-In 44278). A, C, E, general view with right valve removed. B, D, F, right view with right mantle fold removed. G–I, right gill. J–L, foot. Abbreviations: aa, anterior adductor muscle; b, byssus; esr, exhalant siphon retractor muscle; f, foot; g, gill; go, gonad; h, heel; id, inner demibranch; isr, inhalant siphon retractor muscle; od, outer demibranch; pa, posterior adductor muscle; t, toe; vm, visceral mass. Scale bars: 10 mm in A–F; 2 mm in G–L.
</paragraph>
</caption>
<caption id="DF33663EFFCCFFDBFF59FECBD974F917" ID-DOI="http://doi.org/10.5281/zenodo.10470297" ID-Zenodo-Dep="10470297" httpUri="https://zenodo.org/record/10470297/files/figure.png" pageId="9" pageNumber="891" startId="9.[129,194,1708,1732]" targetBox="[192,1410,144,1680]" targetPageId="9" targetType="figure">
<paragraph id="8BF336B6FFCCFFDBFF59FECBD974F917" blockId="9.[129,1474,1708,1788]" pageId="9" pageNumber="891">
<emphasis id="B938EAA4FFCCFFDBFF59FECBD8CBF928" bold="true" box="[129,216,1708,1732]" pageId="9" pageNumber="891">Figure 7.</emphasis>
Living specimens of 
<taxonomicName id="4C4C4D35FFCCFFDBFE46FECBD9F4F928" authorityName="Bosc" authorityYear="1801" box="[414,487,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="9" pageNumber="891" phylum="Mollusca" rank="genus">
<emphasis id="B938EAA4FFCCFFDBFE46FECBD9F4F928" box="[414,487,1708,1732]" italics="true" pageId="9" pageNumber="891">Hiatella</emphasis>
</taxonomicName>
: 
<taxonomicName id="4C4C4D35FFCCFFDBFE2BFECBDAB8F928" authorityName="Zelaya and Marina Güller" authorityYear="2023" box="[499,683,1708,1732]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="9" pageNumber="891" phylum="Mollusca" rank="species" species="umbonata">
<emphasis id="B938EAA4FFCCFFDBFE2BFECBDAB8F928" bold="true" box="[499,683,1708,1732]" italics="true" pageId="9" pageNumber="891">Hiatella umbonata</emphasis>
</taxonomicName>
(A–E) from Burdwood Bank (A, C) and the Argentine continental margin (B, D, E); 
<taxonomicName id="4C4C4D35FFCCFFDBFF7CFEAFD972F90C" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[164,353,1736,1760]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="9" pageNumber="891" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCCFFDBFF7CFEAFD972F90C" box="[164,353,1736,1760]" italics="true" pageId="9" pageNumber="891">Hiatella meridionalis</emphasis>
</taxonomicName>
(F, G) from Puerto Edén (F) and Magellan Strait (G); and 
<taxonomicName id="4C4C4D35FFCCFFDBFC48FEAFDC0FF90C" authorityName="Zelaya and Marina Güller" authorityYear="2023" baseAuthorityName="Ihering" baseAuthorityYear="1907" box="[912,1052,1736,1760]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="9" pageNumber="891" phylum="Mollusca" rank="species" species="barnea">
<emphasis id="B938EAA4FFCCFFDBFC48FEAFDC0FF90C" box="[912,1052,1736,1760]" italics="true" pageId="9" pageNumber="891">Hiatella barnea</emphasis>
</taxonomicName>
(H) from ºuellón. Arrowheads (B, E) point to specimens of 
<taxonomicName id="4C4C4D35FFCCFFDBFEC1FE83D971F910" authorityName="Bosc" authorityYear="1801" box="[281,354,1764,1788]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="9" pageNumber="891" phylum="Mollusca" rank="genus">
<emphasis id="B938EAA4FFCCFFDBFEC1FE83D971F910" box="[281,354,1764,1788]" italics="true" pageId="9" pageNumber="891">Hiatella</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="8BF336B6FFCCFFD8FF44FF0CD8B4FEEA" blockId="9.[129,778,1836,1985]" lastBlockId="10.[113,762,144,262]" lastPageId="10" lastPageNumber="892" pageId="9" pageNumber="891">
Outer shell surface white, chalky (
<figureCitation id="13772A33FFCCFFDBFE2FFF0DDA71F86F" box="[503,610,1898,1923]" captionStart="Figure 3" captionStartId="5.[129,194,1708,1732]" captionTargetBox="[230,1372,144,1680]" captionTargetId="figure-5@5.[230,1372,144,1680]" captionTargetPageId="5" captionText="Figure 3. Early ontogeny shells of Hiatella meridionalis (A–L), Hiatella umbonata (M–O) and Hiatella barnea (P). A, C, Saxicava meridionalis: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, Saxicava lebruni, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P." figureDoi="http://doi.org/10.5281/zenodo.10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="9" pageNumber="891">Figs 3C–L</figureCitation>
, 
<figureCitation id="13772A33FFCCFFDBFDB5FF0CDA69F86F" box="[621,634,1899,1923]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="9" pageNumber="891">4</figureCitation>
). Dissoconch sculptured with low, narrow, commarginal folds near the umbo, gradually increasing in width, forming cords ventrally. In addition, two thin, low and rounded posterior radial ribs, present, similar to each other in solidness. In specimens of ≤ 
<quantity id="4CB49B53FFCCFFDBFAA2FF2CDDD1F88F" box="[1402,1474,1867,1891]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" pageId="9" pageNumber="891" unit="mm" value="16.0">16 mm</quantity>
L, radial ribs extending all along dissoconch and bearing hollow spines, which increase in size distally. In larger specimens, radial ribs become less evident, lacking spines distally, and early secreted spines, in the vicinity of the umbo, reduced to their bases. Periostracum thick, pale yellowish to yellowish brown; forming thin periostracal folds; usually lost in older parts of the shell.
</paragraph>
<paragraph id="8BF336B6FFCFFFD8FFA9F94FD94CFDB5" blockId="10.[113,763,295,601]" pageId="10" pageNumber="892">
<emphasis id="B938EAA4FFCFFFD8FFA9F94FD916FED3" box="[113,261,296,319]" italics="true" pageId="10" pageNumber="892">
Hinge (
<figureCitation id="13772A33FFCFFFD8FF65F94FD8E0FED3" box="[189,243,296,319]" captionStart="Figure 5" captionStartId="7.[129,194,1708,1732]" captionTargetBox="[198,1405,144,1680]" captionTargetId="figure-90@7.[198,1405,144,1680]" captionTargetPageId="7" captionText="Figure 5. Shells of Hiatella meridionalis, inner views and hinge teeth. A, specimen from Burdwood Bank, MACN-In 44157. B, Saxicava subantarctica, lectotype, RBINS MT753. C, Saxicava chilensis, original illustration. D, H, specimen from Fiordo Ponsonby, MACN-In 44282. E–G, DNA vouchers: H38 (E) and H40 (F, G). Scale bars: 10 mm in A–C, F, G; 2 mm in D; 5 mm in E; 1 mm in H." figureDoi="http://doi.org/10.5281/zenodo.10470293" httpUri="https://zenodo.org/record/10470293/files/figure.png" pageId="10" pageNumber="892">Fig. 5</figureCitation>
):
</emphasis>
With a single, small cardinal tooth at each valve and a socket to accommodate the tooth of the opposite valve. Right valve cardinal high, thin to thick, sharply pointed, ventrally directed. Less valve cardinal elongate, posteroventrally directed, usually narrow, but sometimes strong in larger specimens. Less valve socket anterior to cardinal tooth; right valve socket posterior to cardinal tooth. Teeth present throughout shell ontogeny. Nymph elongate, narrow, delicate. Ligament strong, external, opisthodetic. Pallial sinus deep. Inner shell surface porcellanaceous, white.
</paragraph>
<paragraph id="8BF336B6FFCFFFD8FFA9FA1CD9D8F9D2" blockId="10.[113,763,634,1598]" pageId="10" pageNumber="892">
<emphasis id="B938EAA4FFCFFFD8FFA9FA1CD98FFD7E" box="[113,412,634,658]" italics="true" pageId="10" pageNumber="892">
Anatomy (
<figureCitation id="13772A33FFCFFFD8FF39FA1CD999FD7E" box="[225,394,634,658]" captionStart="Figure 6" captionStartId="8.[113,178,1775,1799]" captionTargetBox="[186,1387,145,1746]" captionTargetId="figure-7@8.[184,1388,144,1747]" captionTargetPageId="8" captionText="Figure 6. Anatomy of Hiatella species:Hiatella meridionalis (A, B, G, J) from the Magellan Strait (MACN-In 12414), Hiatella umbonata (C, D, H, K) from Burdwood Bank (MACN-In 44270) and Hiatella barnea (E, F, I, L) from Chilean ḩords (MACN-In 44278). A, C, E, general view with right valve removed.B, D, F, right view with right mantle fold removed.G–I, right gill. J–L, foot. Abbreviations: aa, anterior adductor muscle; b, byssus; esr, exhalant siphon retractor muscle; f, foot; g, gill; go, gonad; h, heel; id, inner demibranch; isr, inhalant siphon retractor muscle; od, outer demibranch; pa, posterior adductor muscle; t, toe; vm, visceral mass. Scale bars:10 mm in A–F; 2 mm in G–L." figureDoi="http://doi.org/10.5281/zenodo.10470295" httpUri="https://zenodo.org/record/10470295/files/figure.png" pageId="10" pageNumber="892">Fig. 6A, B, G, J</figureCitation>
):
</emphasis>
Mantle margin fused for most of its length, with a relatively large (anterior) pedal opening and two smaller (posterior) siphonal openings. Suture behind pedal opening extremely short. Anterior and posterior adductor muscles large, the anterior ovoid, the posterior subcircular, somewhat dorsally displaced. Gills low (~40% of shell height), greatly elongate, with the axis almost horizontal; composed of two complete demibranchs at each side; less and right demibranchs posteriorly fused among them and to mantle margin. Outer demibranch uniform in height all along its length. At anterior end, outer demibranch one-third the height of inner demibranch. At anterior half of the gill, ascending lamella of outer demibranch higher than descending lamella, and descending lamella of inner demibranch higher than ascending lamella. At posterior half of the gill inner and outer demibranchs, and ascending and descending lamellae of each demibranch similar in height. Less and right inner demibranchs ventrally connected by ciliary junctions. Foot relatively large, composed of a compressed stalk, a small heel and a markedly projected anterior ‘toe’; base narrow, flat, with byssal groove extending for ~75% of foot sole. Byssus composed of numerous long, narrow, flat byssus threads, arising from a stout byssus seam; each byssus thread bearing a distal adhesive disc. Byssal gland remains functional in adult specimens. Siphons large, fused at the base, distally separated, reddish brown in all their extensions in living specimens. Inhalant siphon slightly wider than the exhalant; both siphons with numerous series of club-shaped papillae surrounding their openings (
<figureCitation id="13772A33FFCFFFD8FF06FDAFD93BFA0C" box="[222,296,1480,1504]" captionStart="Figure 7" captionStartId="9.[129,194,1708,1732]" captionTargetBox="[192,1410,144,1680]" captionTargetId="figure-107@9.[192,1410,144,1680]" captionTargetPageId="9" captionText="Figure 7. Living specimens of Hiatella: Hiatella umbonata (A–E) from Burdwood Bank (A, C) and the Argentine continental margin (B, D, E); Hiatella meridionalis (F, G) from Puerto Edén (F) and Magellan Strait (G); and Hiatella barnea (H) from ºuellón. Arrowheads (B, E) point to specimens of Hiatella." figureDoi="http://doi.org/10.5281/zenodo.10470297" httpUri="https://zenodo.org/record/10470297/files/figure.png" pageId="10" pageNumber="892">Fig. 7G</figureCitation>
). Inhalant siphon retractor muscle longer and stronger than exhalant siphon retractor muscle. Anterior and posterior labial palps triangular, similar in size, with ≤ 15 sorting ridges in a 57-mm-long specimen.
</paragraph>
</subSubSection>
<subSubSection id="C356653DFFCFFFD8FFA9FE07DA9DF97B" pageId="10" pageNumber="892" type="biology_ecology">
<paragraph id="8BF336B6FFCFFFD8FFA9FE07DA9DF97B" blockId="10.[113,763,1632,1687]" pageId="10" pageNumber="892">
<emphasis id="B938EAA4FFCFFFD8FFA9FE07D8D5F994" box="[113,198,1632,1656]" italics="true" pageId="10" pageNumber="892">Habitat:</emphasis>
Infaunal on soss sediments (
<figureCitation id="13772A33FFCFFFD8FE07FE07DA37F99B" box="[479,548,1632,1656]" captionStart="Figure 7" captionStartId="9.[129,194,1708,1732]" captionTargetBox="[192,1410,144,1680]" captionTargetId="figure-107@9.[192,1410,144,1680]" captionTargetPageId="9" captionText="Figure 7. Living specimens of Hiatella: Hiatella umbonata (A–E) from Burdwood Bank (A, C) and the Argentine continental margin (B, D, E); Hiatella meridionalis (F, G) from Puerto Edén (F) and Magellan Strait (G); and Hiatella barnea (H) from ºuellón. Arrowheads (B, E) point to specimens of Hiatella." figureDoi="http://doi.org/10.5281/zenodo.10470297" httpUri="https://zenodo.org/record/10470297/files/figure.png" pageId="10" pageNumber="892">Fig. 7F</figureCitation>
), sometimes byssally aưached to gravel, boulders or other rocky substrates.
</paragraph>
</subSubSection>
<subSubSection id="C356653DFFCFFFD8FFA9FEDFDAB6F8C2" pageId="10" pageNumber="892" type="distribution">
<paragraph id="8BF336B6FFCFFFD8FFA9FEDFDAB6F8C2" blockId="10.[113,762,1719,1838]" pageId="10" pageNumber="892">
<emphasis id="B938EAA4FFCFFFD8FFA9FEDFD8FCF93C" box="[113,239,1720,1744]" italics="true" pageId="10" pageNumber="892">Distribution:</emphasis>
Along the South American coast, from 
<geoCoordinate id="EE785071FFCFFFD8FD52FEDFDACCF93C" box="[650,735,1719,1744]" degrees="41" direction="south" minutes="46" orientation="latitude" pageId="10" pageNumber="892" precision="925" value="-41.766666">
41°46 
<emphasis id="B938EAA4FFCFFFD8FD1EFED0DADFF93C" box="[710,716,1719,1744]" italics="true" pageId="10" pageNumber="892">ʹ</emphasis>
S
</geoCoordinate>
in the Pacific to 
<geoCoordinate id="EE785071FFCFFFD8FF22FEB0D93DF91C" box="[250,302,1751,1776]" degrees="54" direction="south" orientation="latitude" pageId="10" pageNumber="892" precision="55555" value="-54.0">54° S</geoCoordinate>
in the Atlantic, including the Magellan Strait, 
<collectingCountry id="F35B7626FFCFFFD8FFA9FE90D887F8E3" box="[113,148,1783,1807]" name="Iceland" pageId="10" pageNumber="892">Isla</collectingCountry>
de los Estados, Burdwood Bank, 
<collectingCountry id="F35B7626FFCFFFD8FE33FE90DA59F8E3" box="[491,586,1783,1807]" name="Falkland Islands" pageId="10" pageNumber="892">Malvinas</collectingCountry>
/ 
<collectingCountry id="F35B7626FFCFFFD8FD89FE90DAE9F8E3" box="[593,762,1783,1807]" name="Falkland Islands" pageId="10" pageNumber="892">Falkland Islands</collectingCountry>
and 
<collectingCountry id="F35B7626FFCFFFD8FF45FF71D922F8C2" box="[157,305,1814,1838]" name="South Georgia and the South Sandwich Islands" pageId="10" pageNumber="892">South Georgia</collectingCountry>
(
<figureCitation id="13772A33FFCFFFD8FE9AFF71D999F8C2" box="[322,394,1814,1838]" captionStart="Figure 1" captionStartId="2.[113,178,712,736]" captionTargetBox="[149,1423,147,682]" captionTargetId="figure-646@2.[146,1426,144,684]" captionTargetPageId="2" captionText="Figure 1. Sites in Southern South America (SSA), Prince Edward Islands (PEI) and South Georgia (SG), from where material was studied. A, Hiatella meridionalis. B, Hiatella umbonata. C, Hiatella barnea. Colours represent geographical areas as follows:blue, South Georgia; green, Atlantic coast; light blue, Prince Edward Islands; lilac, Argentine continental margin; orange, Magellan Strait–Beagle Channel; purple, Burdwood Bank–Malvinas/Falkland Islands; red, Pacific coast; yellow, Isla de los Estados." figureDoi="http://doi.org/10.5281/zenodo.10470281" httpUri="https://zenodo.org/record/10470281/files/figure.png" pageId="10" pageNumber="892">Fig. 1A</figureCitation>
). From 
<quantity id="4CB49B53FFCFFFD8FE06FF71DA4DF8C2" box="[478,606,1814,1838]" metricMagnitude="2" metricUnit="m" metricValue="2.7725" metricValueMax="5.529999999999999" metricValueMin="0.015" pageId="10" pageNumber="892" unit="m" value="277.25" valueMax="553.0" valueMin="1.5">1.5 to 553 m</quantity>
depth.
</paragraph>
</subSubSection>
<subSubSection id="C356653DFFCFFFD9FFA9FF37D8C9FD50" lastPageId="11" lastPageNumber="893" pageId="10" pageNumber="892" type="discussion">
<paragraph id="8BF336B6FFCFFFD8FFA9FF37DB7EFD17" blockId="10.[113,762,1872,1990]" lastBlockId="10.[810,1460,144,1984]" pageId="10" pageNumber="892">
<emphasis id="B938EAA4FFCFFFD8FFA9FF37D8DCF884" box="[113,207,1872,1896]" italics="true" pageId="10" pageNumber="892">Remarks:</emphasis>
d’Orbigny (1846) described 
<taxonomicName id="4C4C4D35FFCFFFD8FDC4FF37DAA8F884" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[540,699,1872,1896]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FDC4FF37DAA8F884" box="[540,699,1872,1896]" italics="true" pageId="10" pageNumber="892">H. meridionalis</emphasis>
</taxonomicName>
from 
<collectingCountry id="F35B7626FFCFFFD8FFA9FF08D91AF86B" box="[113,265,1903,1927]" name="Falkland Islands" pageId="10" pageNumber="892">îles Malouines</collectingCountry>
(= 
<collectingCountry id="F35B7626FFCFFFD8FEEEFF08D986F86B" box="[310,405,1903,1927]" name="Falkland Islands" pageId="10" pageNumber="892">Malvinas</collectingCountry>
/ 
<collectingCountry id="F35B7626FFCFFFD8FE45FF08DA5EF86B" box="[413,589,1903,1927]" name="Falkland Islands" pageId="10" pageNumber="892">Falkland Islands</collectingCountry>
) and ‘côte de la Patagonie’. The total number of specimens he had at hand when describing this species was not indicated by the author. Only one of these lots (the former) appears in the NHM database (‘ 
<collectionCode id="ED5DAE73FFCFFFD8FCEDF8C8DB8CFF2B" box="[821,927,175,199]" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34665" lsid="urn:lsid:biocol.org:col:34665" name="Natural History Museum, London" pageId="10" pageNumber="892" type="Museum">NHMUK</collectionCode>
1854.12.4.772’), with no other contemporary lots in the collection (
<collectionCode id="ED5DAE73FFCFFFD8FC1DF8A9DBCBFF0A" box="[965,984,206,230]" name="Tavera, Department of Geology and Geophysics" pageId="10" pageNumber="892">T</collectionCode>
. White, personal communication, 
<date id="FFF21076FFCFFFD8FAE2F8A8DDBBFF0A" box="[1338,1448,206,230]" pageId="10" pageNumber="892" value="2022-06">June 2022</date>
). This lot currently contains six valves, although, according to the museum book register, it was originally composed of only two (broken) valves. None of the valves of this lot corresponds to the specimen figured by d’Orbigny (1846: pl. 81, figs 21, 22). Nevertheless, this issue was surpassed with the 
<typeStatus id="54F78814FFCFFFD8FAF8F90CDD93FE6F" box="[1312,1408,363,387]" pageId="10" pageNumber="892" type="lectotype">lectotype</typeStatus>
designation by 
<bibRefCitation id="EFDD4B47FFCFFFD8FC74F9EDDD09FE4E" author="Simone LRL &amp; Penchaszadeh PE" box="[940,1306,394,418]" pageId="10" pageNumber="892" pagination="119 - 27" refId="ref18906" refString="Simone LRL, Penchaszadeh PE. Redescription of Hiatella meridionalis d'Orbigny, 1846 (Mollusca, Bivalvia, Hiatellidae) from Argentina. Papeis Avulsos de Zoologia 2008; 48: 119 - 27." type="journal article" year="2008">Simone and Penchaszadeh (2008)</bibRefCitation>
, and the concomitant (although not formally pointed out by the authors) restriction of the type locality to 
<collectingCountry id="F35B7626FFCFFFD8FB41F9AEDCEBFE0D" box="[1177,1272,457,481]" name="Falkland Islands" pageId="10" pageNumber="892">Malvinas</collectingCountry>
/ 
<collectingCountry id="F35B7626FFCFFFD8FAD8F9AEDDA3FE0D" box="[1280,1456,457,481]" name="Falkland Islands" pageId="10" pageNumber="892">Falkland Islands</collectingCountry>
. The 
<typeStatus id="54F78814FFCFFFD8FC81F98FDBAAFDEC" box="[857,953,488,512]" pageId="10" pageNumber="892" type="lectotype">lectotype</typeStatus>
(
<figureCitation id="13772A33FFCFFFD8FC14F98FDC0BFDEC" box="[972,1048,488,512]" captionStart="Figure 3" captionStartId="5.[129,194,1708,1732]" captionTargetBox="[230,1372,144,1680]" captionTargetId="figure-5@5.[230,1372,144,1680]" captionTargetPageId="5" captionText="Figure 3. Early ontogeny shells of Hiatella meridionalis (A–L), Hiatella umbonata (M–O) and Hiatella barnea (P). A, C, Saxicava meridionalis: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, Saxicava lebruni, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P." figureDoi="http://doi.org/10.5281/zenodo.10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="10" pageNumber="892">Fig. 3C</figureCitation>
) of 
<quantity id="4CB49B53FFCFFFD8FB90F98FDC95FDEC" box="[1096,1158,488,512]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="10" pageNumber="892" unit="mm" value="4.0">4 mm</quantity>
length closely resembles the specimen figured by d’Orbigny (1846) (here reproduced in 
<figureCitation id="13772A33FFCFFFD8FCF2FA40DB67FDD3" box="[810,884,551,575]" captionStart="Figure 3" captionStartId="5.[129,194,1708,1732]" captionTargetBox="[230,1372,144,1680]" captionTargetId="figure-5@5.[230,1372,144,1680]" captionTargetPageId="5" captionText="Figure 3. Early ontogeny shells of Hiatella meridionalis (A–L), Hiatella umbonata (M–O) and Hiatella barnea (P). A, C, Saxicava meridionalis: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, Saxicava lebruni, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P." figureDoi="http://doi.org/10.5281/zenodo.10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="10" pageNumber="892">Fig. 3A</figureCitation>
). However, the other specimens studied by 
<bibRefCitation id="EFDD4B47FFCFFFD8FAE0FA40DC1FFDB2" author="Simone LRL &amp; Penchaszadeh PE" pageId="10" pageNumber="892" pagination="119 - 27" refId="ref18906" refString="Simone LRL, Penchaszadeh PE. Redescription of Hiatella meridionalis d'Orbigny, 1846 (Mollusca, Bivalvia, Hiatellidae) from Argentina. Papeis Avulsos de Zoologia 2008; 48: 119 - 27." type="journal article" year="2008">Simone and Penchaszadeh (2008)</bibRefCitation>
, collected as ‘epizoic on … 
<taxonomicName id="4C4C4D35FFCFFFD8FAEDFA21DC8DFD92" authority="(King &amp; Broderip, 1832)" baseAuthorityName="King &amp; Broderip" baseAuthorityYear="1832" class="Bivalvia" family="Pectinidae" genus="Zygochlamys" kingdom="Animalia" order="Pectinida" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="patagonica">
<emphasis id="B938EAA4FFCFFFD8FAEDFA21DB87FD91" italics="true" pageId="10" pageNumber="892">Zygochlamys patagonica</emphasis>
(King &amp; Broderip, 1832)
</taxonomicName>
[sic] in grounds 
<quantity id="4CB49B53FFCFFFD8FA97FA01DDA0FD91" box="[1359,1459,614,638]" metricMagnitude="2" metricUnit="m" metricValue="1.1" metricValueMax="1.3" metricValueMin="0.9" pageId="10" pageNumber="892" unit="m" value="110.0" valueMax="130.0" valueMin="90.0">90-130 m</quantity>
depth’ from ‘ 
<collectingCountry id="F35B7626FFCFFFD8FC75FAE2DC07FD71" box="[941,1044,645,669]" name="Argentina" pageId="10" pageNumber="892">Argentina</collectingCountry>
, 
<collectingRegion id="4988F854FFCFFFD8FBC5FAE2DCB4FD71" box="[1053,1191,645,669]" country="Argentina" name="Ciudad Autonoma de Buenos Aires" pageId="10" pageNumber="892">Buenos Aires</collectingRegion>
, off Mar del Plata’, and assigned by these authors to 
<taxonomicName id="4C4C4D35FFCFFFD8FBE4FAC2DCC0FD50" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[1084,1235,676,700]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FBE4FAC2DCC0FD50" box="[1084,1235,676,700]" italics="true" pageId="10" pageNumber="892">H. meridionalis</emphasis>
</taxonomicName>
do not correspond to this species but to a new species of 
<taxonomicName id="4C4C4D35FFCFFFD8FB40FAA4DCF4FD37" authorityName="Bosc" authorityYear="1801" box="[1176,1255,707,731]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="genus">
<emphasis id="B938EAA4FFCFFFD8FB40FAA4DCF4FD37" box="[1176,1255,707,731]" italics="true" pageId="10" pageNumber="892">Hiatella</emphasis>
</taxonomicName>
, which is described below.
</paragraph>
<paragraph id="8BF336B6FFCFFFD8FC9DFB64DD83FB7D" blockId="10.[810,1460,144,1984]" pageId="10" pageNumber="892">
<bibRefCitation id="EFDD4B47FFCFFFD8FC9DFB64DBFFFCF6" author="Preston HB" box="[837,1004,770,794]" pageId="10" pageNumber="892" pagination="218 - 23" refId="ref18500" refString="Preston HB. Descriptions of fisseen new species and varieties of marine shells from the Falkland Islands. Annals and Magazine of Natural History 1913; 11: 218 - 23. hups: // doi. org / 10.1080 / 00222931308693311" type="journal article" year="1913">Preston (1913)</bibRefCitation>
described 
<taxonomicName id="4C4C4D35FFCFFFD8FBB4FB65DD1DFCF6" authorityName="Preston" authorityYear="1913" box="[1132,1294,770,794]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="subantarctica">
<emphasis id="B938EAA4FFCFFFD8FBB4FB65DD1DFCF6" box="[1132,1294,770,794]" italics="true" pageId="10" pageNumber="892">S. subantarctica</emphasis>
</taxonomicName>
also from the 
<collectingCountry id="F35B7626FFCFFFD8FCF2FB46DB9AFCD5" box="[810,905,801,825]" name="Falkland Islands" pageId="10" pageNumber="892">Malvinas</collectingCountry>
/ 
<collectingCountry id="F35B7626FFCFFFD8FC49FB46DC2EFCD5" box="[913,1085,801,825]" name="Falkland Islands" pageId="10" pageNumber="892">Falkland Islands</collectingCountry>
. The specimen originally figured by the author (
<bibRefCitation id="EFDD4B47FFCFFFD8FC76FB26DC29FCB5" author="Preston HB" box="[942,1082,833,857]" pageId="10" pageNumber="892" pagination="218 - 23" refId="ref18500" refString="Preston HB. Descriptions of fisseen new species and varieties of marine shells from the Falkland Islands. Annals and Magazine of Natural History 1913; 11: 218 - 23. hups: // doi. org / 10.1080 / 00222931308693311" type="journal article" year="1913">Preston 1913</bibRefCitation>
: fig. 12) was located in the collections of the Royal Belgian Institute of Natural Sciences (
<collectionCode id="ED5DAE73FFCFFFD8FABDFB07DDA0FC94" box="[1381,1459,864,888]" country="Belgium" httpUri="http://biocol.org/urn:lsid:biocol.org:col:35271" lsid="urn:lsid:biocol.org:col:35271" name="Royal Belgian Institute of Natural Sciences" pageId="10" pageNumber="892" type="Museum">RBINS</collectionCode>
<collectionCode id="ED5DAE73FFCFFFD8FCF2FB18DB47FC7B" box="[810,852,895,919]" country="Russia" name="Mus. Tinro, Vladyvostok" pageId="10" pageNumber="892">MT</collectionCode>
753; 
<figureCitation id="13772A33FFCFFFD8FC5FFB18DBC6FC7B" box="[903,981,895,919]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="10" pageNumber="892">Figs 4A</figureCitation>
, 
<figureCitation id="13772A33FFCFFFD8FC39FB18DBEFFC7B" box="[993,1020,895,919]" captionStart="Figure 5" captionStartId="7.[129,194,1708,1732]" captionTargetBox="[198,1405,144,1680]" captionTargetId="figure-90@7.[198,1405,144,1680]" captionTargetPageId="7" captionText="Figure 5. Shells of Hiatella meridionalis, inner views and hinge teeth. A, specimen from Burdwood Bank, MACN-In 44157. B, Saxicava subantarctica, lectotype, RBINS MT753. C, Saxicava chilensis, original illustration. D, H, specimen from Fiordo Ponsonby, MACN-In 44282. E–G, DNA vouchers: H38 (E) and H40 (F, G). Scale bars: 10 mm in A–C, F, G; 2 mm in D; 5 mm in E; 1 mm in H." figureDoi="http://doi.org/10.5281/zenodo.10470293" httpUri="https://zenodo.org/record/10470293/files/figure.png" pageId="10" pageNumber="892">5B</figureCitation>
). This shell (
<quantity id="4CB49B53FFCFFFD8FB5AFB18DCF3FC7B" box="[1154,1248,895,919]" metricMagnitude="-2" metricUnit="m" metricValue="1.85" pageId="10" pageNumber="892" unit="mm" value="18.5">18.5 mm</quantity>
long) fits within the intraspecific variability here recognized for 
<taxonomicName id="4C4C4D35FFCFFFD8FB31FBF8DD93FC5B" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[1257,1408,927,951]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FB31FBF8DD93FC5B" box="[1257,1408,927,951]" italics="true" pageId="10" pageNumber="892">H. meridionalis</emphasis>
</taxonomicName>
and, consequently, is considered a synonym. Taking into account that 
<bibRefCitation id="EFDD4B47FFCFFFD8FCF2FBB9DBDAFC19" author="Preston HB" box="[810,969,989,1013]" pageId="10" pageNumber="892" pagination="218 - 23" refId="ref18500" refString="Preston HB. Descriptions of fisseen new species and varieties of marine shells from the Falkland Islands. Annals and Magazine of Natural History 1913; 11: 218 - 23. hups: // doi. org / 10.1080 / 00222931308693311" type="journal article" year="1913">Preston (1913)</bibRefCitation>
did not indicate the total number of specimens he had at hand when describing this species and the fact that he sold his collections to several museums and private collectors from different parts of the world, the figured specimen is here designated as the 
<typeStatus id="54F78814FFCFFFD8FC3BFC3CDC50FB9F" box="[995,1091,1115,1139]" pageId="10" pageNumber="892" type="lectotype">lectotype</typeStatus>
(following 
<collectionCode id="ED5DAE73FFCFFFD8FB64FC3CDCE8FB9F" box="[1212,1275,1115,1139]" pageId="10" pageNumber="892">ICZN</collectionCode>
recommendation 74B), with the express purpose of fixing the species concept.
</paragraph>
<paragraph id="8BF336B6FFCFFFD8FC9DFCFEDD67F9A4" blockId="10.[810,1460,144,1984]" pageId="10" pageNumber="892">
The study of the 
<typeStatus id="54F78814FFCFFFD8FC37FCFDDC0EFB5E" box="[1007,1053,1178,1202]" pageId="10" pageNumber="892">type</typeStatus>
material of two of the species described by Mabille and Rochebrune (in 
<bibRefCitation id="EFDD4B47FFCFFFD8FBA8FCDEDDBBFB3D" author="de Rochebrune AAT &amp; Mabille JF" box="[1136,1448,1209,1233]" pageId="10" pageNumber="892" pagination="1 - 29" refId="ref17084" refString="de Rochebrune AAT, Mabille JF. Mollusques. Mission Scientifique du Cap Horn 1882 - 1883 1889; 6 (Zoologie 2): H. 1 - 29." type="journal article" year="1889">Rochebrune and Mabille 1889</bibRefCitation>
) from Cape Horn, i.e. 
<taxonomicName id="4C4C4D35FFCFFFD8FBD2FCBFDC7BFB1C" box="[1034,1128,1240,1264]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="lebruni">
<emphasis id="B938EAA4FFCFFFD8FBD2FCBFDC7BFB1C" box="[1034,1128,1240,1264]" italics="true" pageId="10" pageNumber="892">S. lebruni</emphasis>
</taxonomicName>
(MNHN-IM-2000-31626; 
<figureCitation id="13772A33FFCFFFD8FA51FCBFDB59FAE3" captionStart="Figure 3" captionStartId="5.[129,194,1708,1732]" captionTargetBox="[230,1372,144,1680]" captionTargetId="figure-5@5.[230,1372,144,1680]" captionTargetPageId="5" captionText="Figure 3. Early ontogeny shells of Hiatella meridionalis (A–L), Hiatella umbonata (M–O) and Hiatella barnea (P). A, C, Saxicava meridionalis: original illustrations (A) and photographs of the lectotype, NHMUK 1854.12.4.772 (C). B, F, G, I–K, specimens from Burdwood Bank: MACN-In 44166 (B), MACN-In 44179 (F), MACN-In 44187 (G), MACN-In 44192 (I), MACN-In 44172 (J) and MACN-In 44152 (K). D, Saxicava lebruni, syntype, MNHN-IM-2000-31626. E, specimen from Beagle Channel, MACN-In 10061. L, DNA voucher, H41. H, specimen from Fiordo Ponsonby, MACN-In 44282 (drawn indented lines show the aưachment of the mantle margin to the shell and siphonal muscle scars). M, specimens from Burdwood Bank, MACN-In 44270. N, specimen from Beagle Channel, MACN-In 44235. O, specimen from the Argentine Continental Margin, MACN-In 36596. P, specimens from the Pacific coast, MACN-In 44278. Scale bars: 10 mm in A–L; 2 mm in M–O; 5 mm in P." figureDoi="http://doi.org/10.5281/zenodo.10470289" httpUri="https://zenodo.org/record/10470289/files/figure.png" pageId="10" pageNumber="892">Figs 3D</figureCitation>
, 
<figureCitation id="13772A33FFCFFFD8FC8CFC90DB7CFAE3" box="[852,879,1271,1295]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="10" pageNumber="892">4E</figureCitation>
) and 
<taxonomicName id="4C4C4D35FFCFFFD8FC72FC9FDBE9FAE3" box="[938,1018,1271,1295]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="mollis">
<emphasis id="B938EAA4FFCFFFD8FC72FC9FDBE9FAE3" box="[938,1018,1271,1295]" italics="true" pageId="10" pageNumber="892">S. mollis</emphasis>
</taxonomicName>
(MNHN-IM-2000-31625; 
<figureCitation id="13772A33FFCFFFD8FACFFC90DD4EFAE3" box="[1303,1373,1271,1295]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="10" pageNumber="892">Fig. 4B</figureCitation>
), allows us to confirm that these taxa are also synonyms of 
<taxonomicName id="4C4C4D35FFCFFFD8FAC1FD70DDBDFAC3" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[1305,1454,1303,1327]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FAC1FD70DDBDFAC3" box="[1305,1454,1303,1327]" italics="true" pageId="10" pageNumber="892">H. meridionalis</emphasis>
</taxonomicName>
, as is also the case for the material identified by 
<bibRefCitation id="EFDD4B47FFCFFFD8FAD1FD51DDB8FAA2" author="Carcelles AR" box="[1289,1451,1334,1358]" pageId="10" pageNumber="892" pagination="233 - 309" refId="ref16512" refString="Carcelles AR. Catalogo de los moluscos marinos de Puerto ºuequen (Republica Argentina). Revista del Museo de La Plata (n. s.) [Zoologia] 1944; 3: 233 - 309." type="journal article" year="1944">Carcelles (1944</bibRefCitation>
: fig. 107; 1950: fig. 91) as 
<taxonomicName id="4C4C4D35FFCFFFD8FBE2FD31DC9EFA81" authorityName="Sowerby I" authorityYear="1834" box="[1082,1165,1365,1389]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="solida">
<emphasis id="B938EAA4FFCFFFD8FBE2FD31DC9EFA81" box="[1082,1165,1365,1389]" italics="true" pageId="10" pageNumber="892">S. solida</emphasis>
</taxonomicName>
(MACN-In 13560) and for some of the specimens reported by 
<bibRefCitation id="EFDD4B47FFCFFFD8FB4DFD13DDA0FA61" author="Melvill JC &amp; Standen R" box="[1173,1459,1396,1421]" pageId="10" pageNumber="892" pagination="119 - 157" refId="ref18005" refString="Melvill JC, Standen R. The marine Mollusca of the Scotish National Antarctic Expedition. Royal Society of Edinburgh, Transactions 1907; 46: 119 - 157." type="journal article" year="1907">Melvill and Standen (1907)</bibRefCitation>
as 
<taxonomicName id="4C4C4D35FFCFFFD8FC90FDF3DC2FFA40" box="[840,1084,1428,1452]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="variety" species="arctica" variety="antarctica">
<emphasis id="B938EAA4FFCFFFD8FC90FDF3DBB6FA40" box="[840,933,1428,1452]" italics="true" pageId="10" pageNumber="892">S. arctica</emphasis>
var. 
<emphasis id="B938EAA4FFCFFFD8FC03FDF2DC2FFA40" box="[987,1084,1429,1452]" italics="true" pageId="10" pageNumber="892">antarctica</emphasis>
</taxonomicName>
(
<collectionCode id="ED5DAE73FFCFFFD8FB95FDF3DC94FA40" box="[1101,1159,1428,1452]" country="United Kingdom" httpUri="http://grbio.org/cool/h8hj-4rxx" name="National Museum of Scotland - Natural Sciences" pageId="10" pageNumber="892" type="Museum">NMS</collectionCode>
.Z.1921.143.728.4). The original illustration of 
<taxonomicName id="4C4C4D35FFCFFFD8FC2EFDD3DC4CFA27" authorityName="Hupe" authorityYear="1854" box="[1014,1119,1459,1483]" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="chilensis">
<emphasis id="B938EAA4FFCFFFD8FC2EFDD3DC4CFA27" box="[1014,1119,1459,1483]" italics="true" pageId="10" pageNumber="892">S. chilensis</emphasis>
</taxonomicName>
by Hupé (1858: pl. 8, figs 7, 7a, reproduced herein in 
<figureCitation id="13772A33FFCFFFD8FBD6FDB5DC49FA07" box="[1038,1114,1490,1515]" captionStart="Figure 4" captionStartId="6.[114,179,1708,1732]" captionTargetBox="[215,1357,144,1680]" captionTargetId="figure-112@6.[215,1357,144,1680]" captionTargetPageId="6" captionText="Figure 4. Shells of Hiatella meridionalis, external views.A, Saxicava subantarctica, lectotype, RBINS MT753. B, Saxicava mollis, syntype, MNHN-IM-2000-31625. C, specimen from Burdwood Bank, MACN-In 44157. D, G–I, DNA vouchers: H37 (D), H39 (G), H40 (H, I). E, Saxicava lebruni, syntype, MNHN-IM-2000-31626. F, Saxicava chilensis, original illustration. Scale bars: 10 mm in A–E; 20 mm in F–I." figureDoi="http://doi.org/10.5281/zenodo.10470291" httpUri="https://zenodo.org/record/10470291/files/figure.png" pageId="10" pageNumber="892">Figs 4F</figureCitation>
, 
<figureCitation id="13772A33FFCFFFD8FBB0FDB5DC95FA06" box="[1128,1158,1490,1514]" captionStart="Figure 5" captionStartId="7.[129,194,1708,1732]" captionTargetBox="[198,1405,144,1680]" captionTargetId="figure-90@7.[198,1405,144,1680]" captionTargetPageId="7" captionText="Figure 5. Shells of Hiatella meridionalis, inner views and hinge teeth. A, specimen from Burdwood Bank, MACN-In 44157. B, Saxicava subantarctica, lectotype, RBINS MT753. C, Saxicava chilensis, original illustration. D, H, specimen from Fiordo Ponsonby, MACN-In 44282. E–G, DNA vouchers: H38 (E) and H40 (F, G). Scale bars: 10 mm in A–C, F, G; 2 mm in D; 5 mm in E; 1 mm in H." figureDoi="http://doi.org/10.5281/zenodo.10470293" httpUri="https://zenodo.org/record/10470293/files/figure.png" pageId="10" pageNumber="892">5C</figureCitation>
) also fits within our current concept of 
<taxonomicName id="4C4C4D35FFCFFFD8FC44FD94DC20F9E6" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[924,1075,1522,1546]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FC44FD94DC20F9E6" box="[924,1075,1522,1546]" italics="true" pageId="10" pageNumber="892">H. meridionalis</emphasis>
</taxonomicName>
. 
<taxonomicName id="4C4C4D35FFCFFFD8FBE6FD95DD19F9E6" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[1086,1290,1522,1546]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FBE6FD95DD19F9E6" box="[1086,1290,1522,1546]" italics="true" pageId="10" pageNumber="892">Hiatella meridionalis</emphasis>
</taxonomicName>
is also the name to apply to the molecular taxon ‘ 
<taxonomicName id="4C4C4D35FFCFFFD8FB52FE76DCCAF9C5" authorityName="Bosc" authorityYear="1801" box="[1162,1241,1553,1577]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="genus">
<emphasis id="B938EAA4FFCFFFD8FB52FE76DCCAF9C5" box="[1162,1241,1553,1577]" italics="true" pageId="10" pageNumber="892">Hiatella</emphasis>
</taxonomicName>
A’ of our Molecular Study section (see above) and of 
<bibRefCitation id="EFDD4B47FFCFFFD8FBA2FE57DD7DF9A4" author="Laakkonen HM &amp; Strelkov P &amp; Vainola R" box="[1146,1390,1584,1608]" pageId="10" pageNumber="892" pagination="383 - 402" refId="ref17723" refString="Laakkonen HM, Strelkov P, Vainola R. Molecular lineage diversity and inter-oceanic biogeographical history of Hiatella (Mollusca, Bivalvia). Zoologica Scripta 2015; 44: 383 - 402." type="journal article" year="2015">
Laakkonen 
<emphasis id="B938EAA4FFCFFFD8FB29FE56DD33F9A4" box="[1265,1312,1584,1608]" italics="true" pageId="10" pageNumber="892">et al.</emphasis>
(2015)
</bibRefCitation>
.
</paragraph>
<paragraph id="8BF336B6FFCFFFD9FC9EFE37D97BFEC9" blockId="10.[810,1460,144,1984]" lastBlockId="11.[129,778,144,700]" lastPageId="11" lastPageNumber="893" pageId="10" pageNumber="892">
<taxonomicName id="4C4C4D35FFCFFFD8FC9EFE37DC33F984" ID-CoL="3LHVD" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[838,1056,1616,1640]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FC9EFE37DC33F984" box="[838,1056,1616,1640]" italics="true" pageId="10" pageNumber="892">Hiatella meridionalis</emphasis>
</taxonomicName>
is morphologically similar to the Australian 
<taxonomicName id="4C4C4D35FFCFFFD8FC43FE17DCD9F96B" ID-CoL="3LHV7" authority="(Lamarck, 1818)" baseAuthorityName="Lamarck" baseAuthorityYear="1818" box="[923,1226,1647,1671]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="australis">
<emphasis id="B938EAA4FFCFFFD8FC43FE17DC1CF96B" box="[923,1039,1647,1671]" italics="true" pageId="10" pageNumber="892">H. australis</emphasis>
(Lamarck, 1818)
</taxonomicName>
[= 
<taxonomicName id="4C4C4D35FFCFFFD8FB2CFE17DBA6F94A" authority="A. Adams, 1865" authorityName="A. Adams" authorityYear="1865" class="Bivalvia" family="Hiatellidae" genus="Saxicava" higherTaxonomySource="GBIF" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="angasi">
<emphasis id="B938EAA4FFCFFFD8FB2CFE17DD80F96B" box="[1268,1427,1648,1671]" italics="true" pageId="10" pageNumber="892">Saxicava angasi</emphasis>
A. Adams, 
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</taxonomicName>
in Angas 1865] (figured by Blainville 1827: pl. 78, fig. 3 and pl. 80 bis, fig. 4; Brunckhhorst 1998: fig. 8.44A; 
<bibRefCitation id="EFDD4B47FFCFFFD8FCF2FEAADC7AF909" author="Lamprell KL &amp; Healy JM" box="[810,1129,1741,1765]" pageId="10" pageNumber="892" refId="ref17757" refString="Lamprell KL, Healy JM. Bivalves of Australia, Vol. 2. Leiden: Backhuys, 1998." type="book" year="1998">Lamprell and Healy 1998: 199</bibRefCitation>
, fig. 578). This is another largesized species (up to 
<quantity id="4CB49B53FFCFFFD8FC29FE8BDC58F8E8" box="[1009,1099,1772,1796]" metricMagnitude="-2" metricUnit="m" metricValue="5.35" pageId="10" pageNumber="892" unit="mm" value="53.5">53.5 mm</quantity>
long), which retains the hinge teeth at a large size (see Brunckhhorst 1998: fig. 8.44B, C). 
<bibRefCitation id="EFDD4B47FFCFFFD8FAE4FF6BDDA0F8C8" author="Beu AG" box="[1340,1459,1804,1828]" pageId="10" pageNumber="892" pagination="64 - 6" refId="ref16210" refString="Beu AG. New light on the variation and taxonomy of the bivalve Hiatella. New Zealand Journal of Geology and Geophysics 1971; 14: 64 - 6." type="journal article" year="1971">Beu (1971)</bibRefCitation>
pointed out that ‘it is possible that South American specimens are conspecific with 
<taxonomicName id="4C4C4D35FFCFFFD8FC25FF2DDCB7F88E" ID-CoL="3LHV7" baseAuthorityName="Lamarck" baseAuthorityYear="1818" box="[1021,1188,1866,1890]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="australis">
<emphasis id="B938EAA4FFCFFFD8FC25FF2DDCB7F88E" box="[1021,1188,1866,1890]" italics="true" pageId="10" pageNumber="892">Hiatella australis</emphasis>
</taxonomicName>
’. However, 
<taxonomicName id="4C4C4D35FFCFFFD8FAC2FF2CDD98F88E" ID-CoL="3LHV7" baseAuthorityName="Lamarck" baseAuthorityYear="1818" box="[1306,1419,1866,1890]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="australis">
<emphasis id="B938EAA4FFCFFFD8FAC2FF2CDD98F88E" box="[1306,1419,1866,1890]" italics="true" pageId="10" pageNumber="892">H. australis</emphasis>
</taxonomicName>
has a proportionally shorter and higher shell than 
<taxonomicName id="4C4C4D35FFCFFFD8FACCFF0DDDBDF86E" ID-CoL="3LHVD" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[1300,1454,1898,1922]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="10" pageNumber="892" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCFFFD8FACCFF0DDDBDF86E" box="[1300,1454,1898,1922]" italics="true" pageId="10" pageNumber="892">H. meridionalis</emphasis>
</taxonomicName>
, with a more raised umbo, and the cardinal tooth of the less valve directed anteroventrally (see Brunckhhorst 1998: fig. 8.44C). In addition, 
<taxonomicName id="4C4C4D35FFCEFFD9FECCF8F6D983FF44" ID-CoL="3LHV7" baseAuthorityName="Lamarck" baseAuthorityYear="1818" box="[276,400,144,168]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="11" pageNumber="893" phylum="Mollusca" rank="species" species="australis">
<emphasis id="B938EAA4FFCEFFD9FECCF8F6D983FF44" box="[276,400,144,168]" italics="true" pageId="11" pageNumber="893">H. australis</emphasis>
</taxonomicName>
has a different habitat from 
<taxonomicName id="4C4C4D35FFCEFFD9FD28F8F6D8EAFF2B" ID-CoL="3LHVD" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="11" pageNumber="893" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCEFFD9FD28F8F6D8EAFF2B" italics="true" pageId="11" pageNumber="893">H. meridionalis</emphasis>
</taxonomicName>
, occurring in the intertidal and shallow subtidal zones (
<bibRefCitation id="EFDD4B47FFCEFFD9FF15F8A8D9BCFF0B" author="Middelfart PU &amp; Ponder WF &amp; Beechey D" box="[205,431,207,231]" pageId="11" pageNumber="893" refId="ref18093" refString="Middelfart PU, Ponder WF, Beechey D. Hiatella australis. Australian Faunal Directory. Australian Biological Resources Study, Canberra. 2010. hups: // biodiversity. org. au / afd / taxa / Hiatella _ australis (2 December 2022, date last accessed)." type="book" year="2010">
Middelfart 
<emphasis id="B938EAA4FFCEFFD9FE9BF8A8D967FF0B" box="[323,372,207,231]" italics="true" pageId="11" pageNumber="893">et al.</emphasis>
2010
</bibRefCitation>
). Molecular data provide further evidence to recognize these two entities as distinct (
<bibRefCitation id="EFDD4B47FFCEFFD9FD4FF889D8F4FEC9" author="Laakkonen HM &amp; Strelkov P &amp; Vainola R" pageId="11" pageNumber="893" pagination="383 - 402" refId="ref17723" refString="Laakkonen HM, Strelkov P, Vainola R. Molecular lineage diversity and inter-oceanic biogeographical history of Hiatella (Mollusca, Bivalvia). Zoologica Scripta 2015; 44: 383 - 402." type="journal article" year="2015">
Laakkonen 
<emphasis id="B938EAA4FFCEFFD9FF59F969D8BCFEC9" box="[129,175,269,293]" italics="true" pageId="11" pageNumber="893">et al.</emphasis>
2015
</bibRefCitation>
; this study).
</paragraph>
<paragraph id="8BF336B6FFCEFFD9FF44F94AD8C9FD50" blockId="11.[129,778,144,700]" pageId="11" pageNumber="893">
<taxonomicName id="4C4C4D35FFCEFFD9FF44F94AD97EFEA9" ID-CoL="3LHVD" baseAuthorityName="d'Orbigny" baseAuthorityYear="1846" box="[156,365,301,325]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" kingdom="Animalia" order="Adapedonta" pageId="11" pageNumber="893" phylum="Mollusca" rank="species" species="meridionalis">
<emphasis id="B938EAA4FFCEFFD9FF44F94AD97EFEA9" box="[156,365,301,325]" italics="true" pageId="11" pageNumber="893">Hiatella meridionalis</emphasis>
</taxonomicName>
also resembles the Miocene Antarctic specimens reported by 
<bibRefCitation id="EFDD4B47FFCEFFD9FEA4F92BDA67FE88" author="Beu A &amp; Taviani M" box="[380,628,332,356]" pageId="11" pageNumber="893" pagination="299 - 342" refId="ref16240" refString="Beu A, Taviani M. Early Miocene Mollusca from McMurdo Sound, Antarctica (ANDRILL 2 A drill core), with a review of Antarctic Oligocene and Neogene Pectinidae (Bivalvia). Palaeontology 2014; 57: 299 - 342. hups: // doi. org / 10.1111 / pala. 12067" type="journal article" year="2014">Beu and Taviani (2014</bibRefCitation>
: fig. 9a–c) as 
<taxonomicName id="4C4C4D35FFCEFFD9FF59F90CD945FE6F" ID-CoL="3LHV4" baseAuthorityName="Philippi" baseAuthorityYear="1845" box="[129,342,363,387]" class="Bivalvia" family="Hiatellidae" genus="Hiatella" isUncertain="true" kingdom="Animalia" order="Adapedonta" pageId="11" pageNumber="893" phylum="Mollusca" rank="species" species="antarctica">
<emphasis id="B938EAA4FFCEFFD9FF59F90CD8C3FE6F" box="[129,208,363,387]" italics="true" pageId="11" pageNumber="893">Hiatella</emphasis>
cf. 
<emphasis id="B938EAA4FFCEFFD9FF2DF90BD945FE6F" box="[245,342,364,387]" italics="true" pageId="11" pageNumber="893">antarctica</emphasis>
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. However, the Recent (Magellanic) specimens have a more projected posterior end of the shell, a more differentiated posterior area, and a smaller and lower umbo than the Antarctic fossil material. Furthermore, 
<bibRefCitation id="EFDD4B47FFCEFFD9FDBDF9ADD8D8FDED" author="Beu A &amp; Taviani M" pageId="11" pageNumber="893" pagination="299 - 342" refId="ref16240" refString="Beu A, Taviani M. Early Miocene Mollusca from McMurdo Sound, Antarctica (ANDRILL 2 A drill core), with a review of Antarctic Oligocene and Neogene Pectinidae (Bivalvia). Palaeontology 2014; 57: 299 - 342. hups: // doi. org / 10.1111 / pala. 12067" type="journal article" year="2014">Beu and Taviani (2014)</bibRefCitation>
mentioned that hinge teeth were not seen in the specimens they studied (including specimens from 
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in length), whereas similar-sized specimens of 
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<emphasis id="B938EAA4FFCEFFD9FDE2FA4FDAC3FDD3" box="[570,720,551,575]" italics="true" pageId="11" pageNumber="893">H. meridionalis</emphasis>
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show well-developed teeth. In addition, the authors reported 
<taxonomicName id="4C4C4D35FFCEFFD9FD63FA21D8EEFD92" ID-CoL="3LHV4" baseAuthorityName="Philippi" baseAuthorityYear="1845" class="Bivalvia" family="Hiatellidae" genus="Hiatella" isUncertain="true" kingdom="Animalia" order="Adapedonta" pageId="11" pageNumber="893" phylum="Mollusca" rank="species" species="antarctica">
<emphasis id="B938EAA4FFCEFFD9FD63FA21DB19FDB2" box="[699,778,582,606]" italics="true" pageId="11" pageNumber="893">Hiatella</emphasis>
cf. 
<emphasis id="B938EAA4FFCEFFD9FF44FA00D8EEFD92" box="[156,253,615,638]" italics="true" pageId="11" pageNumber="893">antarctica</emphasis>
</taxonomicName>
aưached to the surface of the pectinid 
<taxonomicName id="4C4C4D35FFCEFFD9FDA3FA01D9D6FD71" ID-CoL="B4LS8" authority="Beu and Taviani, 2013" authorityName="Beu and Taviani" authorityYear="2013" class="Bivalvia" family="Pectinidae" genus="Austrochlamys" kingdom="Animalia" order="Pectinida" pageId="11" pageNumber="893" phylum="Mollusca" rank="species" species="forticosta">
<emphasis id="B938EAA4FFCEFFD9FDA3FA01D8C8FD71" italics="true" pageId="11" pageNumber="893">Austrochlamys forticosta</emphasis>
Beu and Taviani, 2013
</taxonomicName>
, whereas 
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<emphasis id="B938EAA4FFCEFFD9FDFFFAE1DAAEFD71" box="[551,701,645,669]" italics="true" pageId="11" pageNumber="893">H. meridionalis</emphasis>
</taxonomicName>
lives as infaunal.
</paragraph>
</subSubSection>
</treatment>
</document>