299 lines
40 KiB
XML
299 lines
40 KiB
XML
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<mods:title id="D0990F8393179CBD52A3EE4F73000457">Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America</mods:title>
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<taxonomicName id="8AF04D348108FFC23398F9480AB3F915" ID-CoL="7P9GG" authority="DELESSERTI" authorityName="DELESSERTI" box="[250,499,1712,1735]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="genus">
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<emphasis id="7F84EAA58108FFC23398F9480AB3F915" box="[250,499,1712,1735]" italics="true" pageId="17" pageNumber="320">NACELLA DELESSERTI</emphasis>
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(
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<bibRefCitation id="29614B468108FFC23161F95709ECF91A" author="Philippi RA" box="[515,684,1711,1736]" pageId="17" pageNumber="320" pagination="35 - 88" refId="ref24761" refString="Philippi RA. 1849. Abbildungen und Beschreibungen neuer oder wenig gekanntes Conchylien. Archiv fur Naturgeschichten 15: 35 - 88." type="journal article" year="1849">PHILIPPI, 1849</bibRefCitation>
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)
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<paragraph id="4D4F36B78108FFC232CEF92E0941F93D" blockId="17.[428,513,1750,1775]" box="[428,513,1750,1775]" pageId="17" pageNumber="320">
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(
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<figureCitation id="D5CB2A328108FFC232D7F92E0AB9F93D" box="[437,505,1750,1775]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">FIG. 9</figureCitation>
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)
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<paragraph id="4D4F36B78108FFC233C1F90609EBF8C6" blockId="17.[163,780,1790,1904]" box="[163,683,1790,1812]" pageId="17" pageNumber="320">
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<taxonomicName id="8AF04D348108FFC233C1F9060964F8C6" authority="Philippi, 1849: 9" authorityName="Philippi" authorityPageNumber="9" authorityYear="1849" box="[163,548,1790,1812]" class="Gastropoda" family="Patellidae" genus="Patella" kingdom="Animalia" order="Pezizales" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti">
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<emphasis id="7F84EAA58108FFC233C1F9060A23F8C1" box="[163,355,1790,1811]" italics="true" pageId="17" pageNumber="320">Patella delesserti</emphasis>
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<bibRefCitation id="29614B468108FFC23208F9060964F8C6" author="Philippi RA" box="[362,548,1790,1812]" pageId="17" pageNumber="320" pagination="35 - 88" refId="ref24761" refString="Philippi RA. 1849. Abbildungen und Beschreibungen neuer oder wenig gekanntes Conchylien. Archiv fur Naturgeschichten 15: 35 - 88." type="journal article" year="1849">Philippi, 1849: 9</bibRefCitation>
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, pl. 1, fig. 5.
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</paragraph>
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<paragraph id="4D4F36B78108FFC233C1F8E50AABF8A2" blockId="17.[163,780,1790,1904]" pageId="17" pageNumber="320">
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<treatmentCitation id="CC5110A68108FFC233C1F8E5096EF8E1" author="Reeve LA" box="[163,558,1821,1843]" page="425" pageId="17" pageNumber="320" year="1854">
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<taxonomicName id="8AF04D348108FFC233C1F8E5096EF8E1" ID-CoL="4DZRV" authority="Reeve, 1854: 425" authorityName="Reeve" authorityPageNumber="425" authorityYear="1854" box="[163,558,1821,1843]" class="Gastropoda" family="Patellidae" genus="Patella" kingdom="Animalia" order="Pezizales" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="ferruginea">
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<emphasis id="7F84EAA58108FFC233C1F8E50A2DF8E0" box="[163,365,1821,1842]" italics="true" pageId="17" pageNumber="320">Patella ferruginea</emphasis>
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<bibRefCitation id="29614B468108FFC23211F8E6096EF8E1" author="Reeve LA" box="[371,558,1821,1843]" pageId="17" pageNumber="320" refId="ref25166" refString="Reeve LA. 1854. Conchologia iconica: on illustrations of the shells of molluscous animals, Vol. VII. Heinietta Street, Covent Garden, London: Lovell Reeve." type="book" year="1854">Reeve, 1854: 425</bibRefCitation>
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</taxonomicName>
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, pl. XVII, fig. 40a–c.
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<taxonomicName id="8AF04D348108FFC233C1F8C40951F883" ID-CoL="45JQS" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[163,529,1852,1873]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti" subGenus="Patinigera">
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<emphasis id="7F84EAA58108FFC233C1F8C40BBEF883" box="[163,254,1852,1873]" italics="true" pageId="17" pageNumber="320">Nacella</emphasis>
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(
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<emphasis id="7F84EAA58108FFC23272F8C40ACDF883" box="[272,397,1852,1873]" italics="true" pageId="17" pageNumber="320">Patinigera</emphasis>
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)
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<emphasis id="7F84EAA58108FFC232C2F8C40951F883" box="[416,529,1852,1873]" italics="true" pageId="17" pageNumber="320">delesserti</emphasis>
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</taxonomicName>
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–
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<treatmentCitation id="CC5110A68108FFC23153F8C40846F880" author="Powell AWB" box="[561,774,1852,1874]" page="196" pageId="17" pageNumber="320" year="1973">
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<bibRefCitation id="29614B468108FFC23153F8C40846F880" author="Powell AWB" box="[561,774,1852,1874]" pageId="17" pageNumber="320" refId="ref25017" refString="Powell AWB. 1973. The patellid limpets of the World (Patellidae). In: Abbot RT ed. Indo-Pacific Mollusca: monographs of the marine mollusks of the world with emphasis on those of the tropical western Pacific and Indian Oceans, Vol. 3. Auckland, New Zealand: Auckland Institute and Museum." type="book" year="1973">Powell, 1973: 196</bibRefCitation>
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</treatmentCitation>
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;
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<treatmentCitation id="CC5110A68108FFC233C1F8A30AA7F8A2" author="Cantera JR & Arnaud PM" box="[163,487,1882,1904]" page="34" pageId="17" pageNumber="320" year="1985">
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<bibRefCitation id="29614B468108FFC233C1F8A30AA7F8A2" author="Cantera JR & Arnaud PM" box="[163,487,1882,1904]" pageId="17" pageNumber="320" pagination="1 - 169" refId="ref20874" refString="Cantera JR, Arnaud PM. 1985. Les gasteropodes prosobranches des Iles Kerguelen et Crozet (Sud de L'Ocean Indien) comparison ecologique et particularites biologiques. CNFRA (Comite National Francais des Recherches Antarctiques) 56: 1 - 169." type="journal article" year="1985">Cantera & Arnaud, 1985: 34</bibRefCitation>
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</treatmentCitation>
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.
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</treatmentCitationGroup>
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</paragraph>
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<paragraph id="4D4F36B78108FFC23059FF3D0EE3FECA" blockId="17.[827,1443,197,280]" pageId="17" pageNumber="320">
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<treatmentCitationGroup id="6DE011998108FFC23059FF3D0EE3FECA" pageId="17" pageNumber="320">
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<taxonomicName id="8AF04D348108FFC23059FF3D0F4FFF08" ID-CoL="45JQS" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[827,1039,197,218]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti">
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<emphasis id="7F84EAA58108FFC23059FF3D0F4FFF08" box="[827,1039,197,218]" italics="true" pageId="17" pageNumber="320">Nacella delesserti</emphasis>
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</taxonomicName>
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–
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<treatmentCitation id="CC5110A68108FFC23752FF3D0EDEFF08" author="Blankley WO & Branch GM" box="[1072,1438,197,219]" page="171" pageId="17" pageNumber="320" year="1984">
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<bibRefCitation id="29614B468108FFC23752FF3D0EDEFF08" author="Blankley WO & Branch GM" box="[1072,1438,197,219]" pageId="17" pageNumber="320" pagination="171 - 176" refId="ref20617" refString="Blankley WO, Branch GM. 1984. Cooperative prey capture and unusual brooding habits of Anasterias rupicola (Verrill) (Asteroidea) at sub-Antarctic Marion Island. Marine Ecology-Progress Series 20: 171 - 176." type="book chapter" year="1984">Blankley & Branch, 1984: 171</bibRefCitation>
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</treatmentCitation>
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;
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<treatmentCitation id="CC5110A68108FFC23059FF1C0FE2FF28" author="Blankley WO & Branch GM" box="[827,1186,228,250]" page="259" pageId="17" pageNumber="320" year="1985">
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<bibRefCitation id="29614B468108FFC23059FF1C0FE2FF28" author="Blankley WO & Branch GM" box="[827,1186,228,250]" pageId="17" pageNumber="320" pagination="259 - 281" refId="ref20655" refString="Blankley WO, Branch GM. 1985. Ecology of the limpet Nacella delesserti (Phillipi) at Marion Island in the Sub- Antarctic Southern Ocean. Journal of Experimental Marine Biology and Ecology 92: 259 - 281." type="journal article" year="1985">Blankley & Branch, 1985: 259</bibRefCitation>
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</treatmentCitation>
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;
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<treatmentCitation id="CC5110A68108FFC237CDFF1C08E9FECA" author="Hodgson A & Bernard R" page="145" pageId="17" pageNumber="320" year="1989">
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<bibRefCitation id="29614B468108FFC237CDFF1C08E9FECA" author="Hodgson A & Bernard R" pageId="17" pageNumber="320" pagination="145 - 147" refId="ref22831" refString="Hodgson A, Bernard R. 1989. Spermatozoon structure and the taxonomic affinity of the limpet Nacella delesserti (Gastropoda: Patellidae). Journal of Molluscan Studies 55: 145 - 147." type="journal article" year="1989">Hodgson & Bernard, 1989: 145</bibRefCitation>
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;
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<bibRefCitation id="29614B468108FFC230D1FEFA0E66FECA" author="Gonzalez-Wevar CA & Hune M & Rosenfeld S & Saucede T & Feral J-P & Mansilla A & Poulin E" box="[947,1318,258,280]" pageId="17" pageNumber="320" pagination="46 - 55" refId="ref22214" refString="Gonzalez-Wevar CA, Hune M, Rosenfeld S, Saucede T, Feral J-P, Mansilla A, Poulin E. 2016 b. Patterns of genetic diversity and structure in Antarctic and sub-Antarctic Nacella (Patellogastropoda: Nacellidae) species. Biodiversity 17: 46 - 55." type="journal article" year="2016">
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González-Wevar
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<emphasis id="7F84EAA58108FFC23711FEFB0FEBFEC5" box="[1139,1195,258,280]" italics="true" pageId="17" pageNumber="320">et al.</emphasis>
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, 2016b: 77
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;
|
||
<treatmentCitation id="CC5110A68108FFC23652FEFB0EDFFECA" author="Gonzalez-Wevar CA & Hune M & Segovia NI & Nakano T & Spencer HG & Chown S & Saucede T & Johnstone G & Mansilla A & Poulin E" box="[1328,1439,258,280]" page="863" pageId="17" pageNumber="320" year="2017">
|
||
<bibRefCitation id="29614B468108FFC23652FEFB0EDFFECA" author="Gonzalez-Wevar CA & Hune M & Segovia NI & Nakano T & Spencer HG & Chown S & Saucede T & Johnstone G & Mansilla A & Poulin E" box="[1328,1439,258,280]" pageId="17" pageNumber="320" pagination="861 - 874" refId="ref22263" refString="Gonzalez-Wevar CA, Hune M, Segovia NI, Nakano T, Spencer HG, Chown S, Saucede T, Johnstone G, Mansilla A, Poulin E. 2017. Following the Antarctic Circumpolar Current: patterns and processes in the biogeography of the limpet Nacella (Mollusca: Patellogastropoda) across the Southern Ocean. Journal of Biogeography 44: 861 - 874." type="journal article" year="2017">2017: 863</bibRefCitation>
|
||
</treatmentCitation>
|
||
.
|
||
</treatmentCitationGroup>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSection id="247F2F5C8108FFC13059FEC90B98F8B2" lastPageId="18" lastPageNumber="321" pageId="17" pageNumber="320" type="materials_methods">
|
||
<subSubSection id="05EA653C8108FFC23059FEC90F5CFC09" pageId="17" pageNumber="320" type="materials_examined">
|
||
<paragraph id="4D4F36B78108FFC23059FEC90EE4FE71" blockId="17.[827,1444,305,419]" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059FEC90F5BFE94" box="[827,1051,305,326]" italics="true" pageId="17" pageNumber="320">Material studied:</emphasis>
|
||
Trypot Beach, Marion Island (
|
||
<geoCoordinate id="28C450708108FFC23021FEA808AEFEB7" box="[835,1006,336,358]" degrees="46" direction="south" minutes="52" orientation="latitude" pageId="17" pageNumber="320" precision="1" seconds="33.91" value="-46.876083">46°52’33.91’’ S</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="28C450708108FFC2309EFEA80FE9FEB7" box="[1020,1193,336,358]" degrees="37" direction="east" minutes="51" orientation="longitude" pageId="17" pageNumber="320" precision="1" seconds="51.40" value="37.864277">37°51’51.40’’ E</geoCoordinate>
|
||
)
|
||
<emphasis id="7F84EAA58108FFC237D8FEA90F8EFEB4" box="[1210,1230,337,358]" italics="true" pageId="17" pageNumber="320">N</emphasis>
|
||
= 50; Ships Cove, Marion Island (
|
||
<geoCoordinate id="28C450708108FFC2308EFE960FD0FE56" box="[1004,1168,366,388]" degrees="46" direction="south" minutes="51" orientation="latitude" pageId="17" pageNumber="320" precision="1" seconds="16.22" value="-46.854504">46°51’16.22’’ S</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="28C450708108FFC237F9FE960E01FE56" box="[1179,1345,366,388]" degrees="37" direction="east" minutes="50" orientation="longitude" pageId="17" pageNumber="320" precision="1" seconds="42.36" value="37.8451">37°50’42.36’’ E</geoCoordinate>
|
||
)
|
||
<emphasis id="7F84EAA58108FFC23632FE970E24FE56" box="[1360,1380,367,388]" italics="true" pageId="17" pageNumber="320">N</emphasis>
|
||
= 40; Crozet Islands (
|
||
<geoCoordinate id="28C450708108FFC2308CFE750FD2FE70" box="[1006,1170,397,419]" degrees="46" direction="south" minutes="25" orientation="latitude" pageId="17" pageNumber="320" precision="1" seconds="34.25" value="-46.42618">46°25’34.25’’ S</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="28C450708108FFC237FFFE750E03FE71" box="[1181,1347,397,419]" degrees="51" direction="east" minutes="51" orientation="longitude" pageId="17" pageNumber="320" precision="1" seconds="42.50" value="51.861805">51°51’42.50’’ E</geoCoordinate>
|
||
)
|
||
<emphasis id="7F84EAA58108FFC23633FE760E25FE71" box="[1361,1381,398,419]" italics="true" pageId="17" pageNumber="320">N</emphasis>
|
||
= 50.
|
||
</paragraph>
|
||
<paragraph id="4D4F36B78108FFC23059FE440F5CFC09" blockId="17.[827,1444,444,987]" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059FE4408C0FE03" box="[827,896,444,465]" italics="true" pageId="17" pageNumber="320">Shell:</emphasis>
|
||
The shell shape and sculpture are relatively constant (
|
||
<figureCitation id="D5CB2A328108FFC230D0FE220F68FE22" box="[946,1064,474,496]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9A–C</figureCitation>
|
||
). The species exhibits a conical morphology, dorsally raised, with a very thick and non-translucent shell (
|
||
<figureCitation id="D5CB2A328108FFC2372BFDE00FFDFDFF" box="[1097,1213,536,558]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9A–F</figureCitation>
|
||
). The anterior part of the animal is laterally compressed (
|
||
<figureCitation id="D5CB2A328108FFC23660FDCE0E37FD9E" box="[1282,1399,566,588]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9D–F</figureCitation>
|
||
). It has a medium-sized shell (maximum length
|
||
<quantity id="8A089B528108FFC2362BFDAD0EDBFDB9" box="[1353,1435,597,619]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="17" pageNumber="320" unit="mm" value="80.0">80 mm</quantity>
|
||
) and exhibits a variable profile. The apex is situated at the anterior 25–35% of the shell’s length (
|
||
<figureCitation id="D5CB2A328108FFC23643FD6A0ED4FD7A" box="[1313,1428,658,680]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9D–F</figureCitation>
|
||
). All the slopes of the shell are convex (
|
||
<figureCitation id="D5CB2A328108FFC2378DFD490E21FD14" box="[1263,1377,689,711]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9A–C</figureCitation>
|
||
). The aperture of the shell is oval. The surface of the shell exhibits low radial folds and lamellar growth lines. The margin of the shell is highly crenulated. The external coloration of the shell is relatively constant in the species: grey to white, with dark (brown and black) primary radial ribs. The internal part of the shell has a soft metallic-white coloration, with dark lines corresponding to external colour patterns, bordered by a white/brown halo.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="05EA653C8108FFC23059FBFC0E3DFAB6" pageId="17" pageNumber="320" type="description">
|
||
<paragraph id="4D4F36B78108FFC23059FBFC0FA8FB03" blockId="17.[827,1443,1028,1234]" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059FBFC0F5BFBCB" box="[827,1051,1028,1049]" italics="true" pageId="17" pageNumber="320">External anatomy:</emphasis>
|
||
The ventral area of the foot is black and the epipodial fringe is highly recognizable. The mantle fold is thick and dun-brown coloured. The mantle tentacles are in alternate series of three shorter pigmented ones (white/black/white) and black longer one (
|
||
<figureCitation id="D5CB2A328108FFC230DEFB650F4DFB60" box="[956,1037,1181,1203]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9G</figureCitation>
|
||
). The cephalic tentacles are dorsally pigmented with a black line (
|
||
<figureCitation id="D5CB2A328108FFC237E5FB440F99FB03" box="[1159,1241,1212,1234]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9G</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="4D4F36B78108FFC23059FB0A0E3DFAB6" blockId="17.[827,1443,1266,1380]" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059FB0A08D8FAD5" box="[827,920,1266,1287]" italics="true" pageId="17" pageNumber="320">Radula:</emphasis>
|
||
The first lateral teeth are set close together on the anterior edge of the basal plates, long and very sharp, with two cusps. The second laterals are broader, wider spaced, with four very sharp cusps (
|
||
<figureCitation id="D5CB2A328108FFC23678FAB60E2EFAB1" box="[1306,1390,1358,1380]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9H</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="05EA653C8108FFC23059FA850F39FA2D" pageId="17" pageNumber="320" type="distribution">
|
||
<paragraph id="4D4F36B78108FFC23059FA8508B6FA63" blockId="17.[827,1442,1405,1458]" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059FA85089BFA40" box="[827,987,1405,1426]" italics="true" pageId="17" pageNumber="320">Distribution:</emphasis>
|
||
Marion, Prince Edward and Crozet Islands (
|
||
<figureCitation id="D5CB2A328108FFC230FFFA6408A7FA63" box="[925,999,1436,1458]" captionStart="Figure 9" captionStartId="18.[145,225,1395,1417]" captionTargetBox="[239,1331,195,1355]" captionTargetId="graphics-241@18.[239,1331,771,1355]" captionTargetPageId="18" captionText="Figure 9. Nacella delesserti, Marion and Crozet Islands, sub-Antarctic Indian Ocean. Scale bar = 1.0 cm for all unless specified otherwise. A = Trypot Beach, Marion Island B = Ships Cove, Marion Island, C = Crozet Islands. A–F, shell morphology and coloration of Nacella delesserti. A–C, lateral view. D–F, dorsal view. G, mantle tentacles, cephalic tentacles and foot coloration patterns. H, radula. I, distribution." figureDoi="http://doi.org/10.5281/zenodo.5718905" httpUri="https://zenodo.org/record/5718905/files/figure.png" pageId="17" pageNumber="320">Fig. 9I</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="4D4F36B78108FFC23059FA320F39FA2D" blockId="17.[827,1443,1482,1535]" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059FA3208DAFA0D" box="[827,922,1482,1503]" italics="true" pageId="17" pageNumber="320">Habitat:</emphasis>
|
||
High and medium intertidal rocky ecosystem between 0 and
|
||
<quantity id="8A089B528108FFC23084FA110F5FFA2C" box="[998,1055,1513,1534]" metricMagnitude="1" metricUnit="m" metricValue="3.0" pageId="17" pageNumber="320" unit="m" value="30.0">30 m</quantity>
|
||
depths.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="05EA653C8108FFC13059F9D50B98F8B2" lastPageId="18" lastPageNumber="321" pageId="17" pageNumber="320" type="discussion">
|
||
<paragraph id="4D4F36B78108FFC13059F9D50B98F8B2" blockId="17.[827,1444,1581,1910]" lastBlockId="18.[145,761,1560,1888]" lastPageId="18" lastPageNumber="321" pageId="17" pageNumber="320">
|
||
<emphasis id="7F84EAA58108FFC23059F9D50FF2F990" box="[827,1202,1581,1602]" italics="true" pageId="17" pageNumber="320">
|
||
Comments:
|
||
<taxonomicName id="8AF04D348108FFC230B0F9D50FF2F990" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[978,1202,1581,1602]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti">Nacella delesserti</taxonomicName>
|
||
</emphasis>
|
||
was first reported at Crozet Islands by
|
||
<bibRefCitation id="29614B468108FFC23726F9B40EC3F9B0" author="Cantera JR & Arnaud PM" box="[1092,1411,1612,1634]" pageId="17" pageNumber="320" pagination="1 - 169" refId="ref20874" refString="Cantera JR, Arnaud PM. 1985. Les gasteropodes prosobranches des Iles Kerguelen et Crozet (Sud de L'Ocean Indien) comparison ecologique et particularites biologiques. CNFRA (Comite National Francais des Recherches Antarctiques) 56: 1 - 169." type="journal article" year="1985">Cantera & Arnaud (1985)</bibRefCitation>
|
||
, a finding we confirm here. These authors also reported the species from
|
||
<collectingCountry id="35E776278108FFC2377AF9710F91F94D" box="[1048,1233,1673,1695]" name="South Georgia and the South Sandwich Islands" pageId="17" pageNumber="320">South Georgia</collectingCountry>
|
||
, but our sample of>150 individuals consisted only of
|
||
<taxonomicName id="8AF04D348108FFC23669F9500EDCF96F" baseAuthorityName="Strebel" baseAuthorityYear="1908" box="[1291,1436,1704,1725]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="concinna">
|
||
<emphasis id="7F84EAA58108FFC23669F9500EDCF96F" box="[1291,1436,1704,1725]" italics="true" pageId="17" pageNumber="320">N. concinna</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<bibRefCitation id="29614B468108FFC23059F93E08A8F90E" author="Zelaya D" box="[827,1000,1734,1756]" pageId="17" pageNumber="320" pagination="109 - 139" refId="ref26737" refString="Zelaya D. 2005. Systematics and biogeography of marine gastropod molluscs from South Georgia. Spixiana 28: 109 - 139." type="journal article" year="2005">Zelaya (2005)</bibRefCitation>
|
||
also failed to find
|
||
<taxonomicName id="8AF04D348108FFC23785F93F0E3EF909" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[1255,1406,1734,1756]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti">
|
||
<emphasis id="7F84EAA58108FFC23785F93F0E3EF909" box="[1255,1406,1734,1756]" italics="true" pageId="17" pageNumber="320">N delesserti</emphasis>
|
||
</taxonomicName>
|
||
at
|
||
<collectingCountry id="35E776278108FFC23059F91D08A5F929" box="[827,997,1765,1787]" name="South Georgia and the South Sandwich Islands" pageId="17" pageNumber="320">South Georgia</collectingCountry>
|
||
. Hence, we consider
|
||
<taxonomicName id="8AF04D348108FFC237B4F91E0E23F928" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[1238,1379,1765,1787]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti">
|
||
<emphasis id="7F84EAA58108FFC237B4F91E0E23F928" box="[1238,1379,1765,1787]" italics="true" pageId="17" pageNumber="320">N. delesserti</emphasis>
|
||
</taxonomicName>
|
||
to be restricted to Marion and Crozet Islands. Phylogenetic reconstructions placed
|
||
<taxonomicName id="8AF04D348108FFC23703F8DB0FBBF8E5" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[1121,1275,1826,1848]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="delesserti">
|
||
<emphasis id="7F84EAA58108FFC23703F8DB0FBBF8E5" box="[1121,1275,1826,1848]" italics="true" pageId="17" pageNumber="320">N. delesserti</emphasis>
|
||
</taxonomicName>
|
||
as the sister species of
|
||
<taxonomicName id="8AF04D348108FFC230D9F8BA0F0CF885" baseAuthorityName="Strebel" baseAuthorityYear="1908" box="[955,1100,1858,1879]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="17" pageNumber="320" phylum="Mollusca" rank="species" species="concinna">
|
||
<emphasis id="7F84EAA58108FFC230D9F8BA0F0CF885" box="[955,1100,1858,1879]" italics="true" pageId="17" pageNumber="320">N. concinna</emphasis>
|
||
</taxonomicName>
|
||
, their separation occurring around 0.35 Mya (
|
||
<bibRefCitation id="29614B468108FFC23777F8980E1FF8A7" author="Gonzalez-Wevar CA & Hune M & Segovia NI & Nakano T & Spencer HG & Chown S & Saucede T & Johnstone G & Mansilla A & Poulin E" box="[1045,1375,1888,1910]" pageId="17" pageNumber="320" pagination="861 - 874" refId="ref22263" refString="Gonzalez-Wevar CA, Hune M, Segovia NI, Nakano T, Spencer HG, Chown S, Saucede T, Johnstone G, Mansilla A, Poulin E. 2017. Following the Antarctic Circumpolar Current: patterns and processes in the biogeography of the limpet Nacella (Mollusca: Patellogastropoda) across the Southern Ocean. Journal of Biogeography 44: 861 - 874." type="journal article" year="2017">
|
||
González-Wevar
|
||
<emphasis id="7F84EAA58108FFC237BFF8980E58F8A7" box="[1245,1304,1888,1909]" italics="true" pageId="17" pageNumber="320">et al.</emphasis>
|
||
, 2017
|
||
</bibRefCitation>
|
||
). The presence of
|
||
<taxonomicName id="8AF04D34810BFFC13246F9E00AFAF9FF" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[292,442,1560,1581]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="18" pageNumber="321" phylum="Mollusca" rank="species" species="delesserti">
|
||
<emphasis id="7F84EAA5810BFFC13246F9E00AFAF9FF" box="[292,442,1560,1581]" italics="true" pageId="18" pageNumber="321">N. delesserti</emphasis>
|
||
</taxonomicName>
|
||
at sub-Antartctic Marion and Crozet Islands is thus the result of evolutionarily recent long-distance dispersal from maritime
|
||
<collectingCountry id="35E77627810BFFC133F3F98C0A4FF958" box="[145,271,1652,1674]" name="Antarctica" pageId="18" pageNumber="321">Antarctica</collectingCountry>
|
||
.
|
||
<taxonomicName id="8AF04D34810BFFC13278F98C0AA7F95B" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[282,487,1652,1673]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="18" pageNumber="321" phylum="Mollusca" rank="species" species="delesserti">
|
||
<emphasis id="7F84EAA5810BFFC13278F98C0AA7F95B" box="[282,487,1652,1673]" italics="true" pageId="18" pageNumber="321">Nacella delesserti</emphasis>
|
||
</taxonomicName>
|
||
showed very low levels of genetic diversity that constitute evidence of recent postglacial expansion in Marion Island. Due to the exceptional high density and biomass of
|
||
<taxonomicName id="8AF04D34810BFFC1310EF92809B9F937" baseAuthorityName="Philippi" baseAuthorityYear="1849" box="[620,761,1744,1765]" class="Gastropoda" family="Nacellidae" genus="Nacella" kingdom="Animalia" order="Patellida" pageId="18" pageNumber="321" phylum="Mollusca" rank="species" species="delesserti">
|
||
<emphasis id="7F84EAA5810BFFC1310EF92809B9F937" box="[620,761,1744,1765]" italics="true" pageId="18" pageNumber="321">N. delesserti</emphasis>
|
||
</taxonomicName>
|
||
on Marion Island rocky shores, it plays an important role in the organization of intertidal and shallowwater benthic communities (
|
||
<bibRefCitation id="29614B46810BFFC1329CF8D40B89F8B2" author="Blankley WO & Branch GM" pageId="18" pageNumber="321" pagination="259 - 281" refId="ref20655" refString="Blankley WO, Branch GM. 1985. Ecology of the limpet Nacella delesserti (Phillipi) at Marion Island in the Sub- Antarctic Southern Ocean. Journal of Experimental Marine Biology and Ecology 92: 259 - 281." type="journal article" year="1985">Blankley & Branch, 1985</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</subSection>
|
||
</treatment>
|
||
</document> |