213 lines
41 KiB
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213 lines
41 KiB
XML
<document id="AD3A1C9289BA814D0D8E1A63C39ADF5E" ID-CLB-Dataset="4973" ID-DOI="10.1080/00222933.2014.958114" ID-GBIF-Dataset="9d9f917f-1ceb-4b2d-a541-092172c04b5a" ID-ISSN="1464-5262" ID-Zenodo-Dep="5194630" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1628814647488" checkinUser="felipe" docAuthor="Señarís, Marcos P., García-Álvarez, Oscar & Urgorri, Victoriano" docDate="2014" docId="6B1787E67C75AB566FB1FF28DE14FE30" docLanguage="en" docName="JNatHist.48.45-48.2871-2884.pdf" docOrigin="Journal of Natural History 48 (45 - 48)" docSource="http://dx.doi.org/10.1080/00222933.2014.958114" docStyle="DocumentStyle:CD936EBDDF5274E0936345450CC2DAE4.5:JNatHist.2013-2015.journal_article.1cover" docStyleId="CD936EBDDF5274E0936345450CC2DAE4" docStyleName="JNatHist.2013-2015.journal_article.1cover" docStyleVersion="5" docTitle="Falcidens vasconiensis Salvini-Plawen 1996" docType="treatment" docVersion="7" lastPageNumber="2877" masterDocId="972EFF9E7C76AB5D6E0EF951DF0BFF8F" masterDocTitle="Morphology of Falcidens vasconiensis (Mollusca, Caudofoveata, Chaetodermatidae), including a 3 D reconstruction of the internal anatomy" masterLastPageNumber="2884" masterPageNumber="2871" pageNumber="2873" updateTime="1699078743608" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="21E625F8CED0DECB3CC71D0416DD4AC5">Morphology of Falcidens vasconiensis (Mollusca, Caudofoveata, Chaetodermatidae), including a 3 D reconstruction of the internal anatomy</mods:title>
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<mods:namePart id="0043B0B08E84453E1D55146A44078491">Señarís, Marcos P.</mods:namePart>
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<mods:affiliation id="A67B83F2FE0A0B42F88CA0280F9924C3">Estación de Bioloxía Mariña da Graña, Universidade de Santiago de Compostela, Ferrol, Spain; & Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain</mods:affiliation>
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<mods:namePart id="025D8477FC3555CD76D67FD5583D5EB3">García-Álvarez, Oscar</mods:namePart>
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<mods:affiliation id="077513315D15F038B08BCD8EA238BA85">Estación de Bioloxía Mariña da Graña, Universidade de Santiago de Compostela, Ferrol, Spain; & Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain</mods:affiliation>
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<mods:namePart id="827A5CC4FA4832D3246FB8C46FEA71E0">Urgorri, Victoriano</mods:namePart>
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<mods:affiliation id="3B185D4D9CFCA04BE64C00AF203D61DC">Estación de Bioloxía Mariña da Graña, Universidade de Santiago de Compostela, Ferrol, Spain; & Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain</mods:affiliation>
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<mods:title id="45109D32C849D33F23D07504DF43A597">Journal of Natural History</mods:title>
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<mods:date id="E1CB5A63ED658C3B3430F66AD3C9B7CE">2014</mods:date>
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<mods:number id="AB3529B82FC32C7390CEC2FF6B8DE0A0">2014-10-15</mods:number>
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<mods:number id="BC65C511064593237010717C7F16E468">48</mods:number>
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<mods:number id="FA346902EA4097120EE07E4DE0A36771">45 - 48</mods:number>
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<treatment id="6B1787E67C75AB566FB1FF28DE14FE30" ID-DOI="http://doi.org/10.5281/zenodo.5196006" ID-GBIF-Taxon="184136123" ID-Zenodo-Dep="5196006" LSID="urn:lsid:plazi:treatment:6B1787E67C75AB566FB1FF28DE14FE30" httpUri="http://treatment.plazi.org/id/6B1787E67C75AB566FB1FF28DE14FE30" lastPageId="11" lastPageNumber="2877" pageId="3" pageNumber="2873">
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<subSubSection id="ABA4657B7C75AB596FB1FF28DE77FF4F" lastPageId="4" lastPageNumber="2874" pageId="3" pageNumber="2873" type="nomenclature">
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<paragraph id="E30136F07C75AB5E6FB1FF28DCA3F91E" blockId="3.[415,968,1562,1681]" box="[447,936,1657,1681]" pageId="3" pageNumber="2873">
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<heading id="B849819C7C75AB5E6FB1FF28DCA3F91E" box="[447,936,1657,1681]" centered="true" fontSize="10" level="2" pageId="3" pageNumber="2873" reason="2">
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<taxonomicName id="24BE4D737C75AB5E6FB1FF28DCA3F91E" ID-CoL="6HNKV" authority="Salvini-Plawen, 1996" authorityName="Salvini-Plawen" authorityYear="1996" box="[447,936,1657,1681]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="3" pageNumber="2873" phylum="Mollusca" rank="species" species="vasconiensis">
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<emphasis id="D1CAEAE27C75AB5E6FB1FF28DDB8F91E" bold="true" box="[447,691,1657,1681]" italics="true" pageId="3" pageNumber="2873">Falcidens vasconiensis</emphasis>
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<bibRefCitation id="872F4B017C75AB5E6CB2FF28DCA3F91E" author="Salvini-Plawen Lv" box="[700,936,1657,1681]" pageId="3" pageNumber="2873" pagination="339 - 345" refId="ref5225" refString="Salvini-Plawen Lv. 1996. Falcidens vasconiensis spec. nov. (Mollusca, Caudofoveata) du plateau continental du golfe de Gascogne. Bull Soc Zool Fr. 121: 339 - 345." type="journal article" year="1996">Salvini-Plawen, 1996</bibRefCitation>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="E30136F07C72AB596E9EF9F9DE77FF4F" blockId="4.[144,1104,168,463]" box="[144,380,168,192]" pageId="4" pageNumber="2874">
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<heading id="B849819C7C72AB596E9EF9F9DE77FF4F" box="[144,380,168,192]" fontSize="10" level="3" pageId="4" pageNumber="2874" reason="5">
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<emphasis id="D1CAEAE27C72AB596E9EF9F9DE77FF4F" bold="true" box="[144,380,168,192]" italics="true" pageId="4" pageNumber="2874">External morphology</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="ABA4657B7C72AB566E9EF981DE14FE30" lastPageId="11" lastPageNumber="2881" pageId="4" pageNumber="2874" type="description">
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<paragraph id="E30136F07C72AB596E9EF981DFE3FF67" blockId="4.[144,1104,168,463]" box="[144,232,208,232]" pageId="4" pageNumber="2874">
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<emphasis id="D1CAEAE27C72AB596E9EF981DFE3FF67" box="[144,232,208,232]" italics="true" pageId="4" pageNumber="2874">Habitus</emphasis>
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</paragraph>
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<paragraph id="E30136F07C72AB586E9EF9A9DE6CFF6F" blockId="4.[144,1104,168,463]" lastBlockId="5.[212,1171,168,224]" lastPageId="5" lastPageNumber="2875" pageId="4" pageNumber="2874">
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The specimens of
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<taxonomicName id="24BE4D737C72AB596F6FF9A9DD5DFE9F" authorityName="Salvini-Plawen" authorityYear="1996" box="[353,598,248,272]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="4" pageNumber="2874" phylum="Mollusca" rank="species" species="vasconiensis">
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<emphasis id="D1CAEAE27C72AB596F6FF9A9DD5DFE9F" box="[353,598,248,272]" italics="true" pageId="4" pageNumber="2874">Falcidens vasconiensis</emphasis>
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</taxonomicName>
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used in this study were 1.35–4.85 mm long and white or transparent
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<emphasis id="D1CAEAE27C72AB596FBCF848DEF7FEBF" box="[434,508,281,304]" italics="true" pageId="4" pageNumber="2874">in vivo</emphasis>
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, in some cases brownish due to the alimentary tract (
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<figureCitation id="7B852A757C72AB596E96F869DFFCFEDF" box="[152,247,312,336]" captionStart="Figure 1" captionStartId="4.[144,211,1635,1657]" captionTargetBox="[144,1104,582,1603]" captionTargetId="figure-111@4.[144,1104,582,1603]" captionTargetPageId="4" captionText="Figure 1. Habitus of Falcidens vasconiensis, A–E. light micrographs of five specimens. an, anterium; n, neck; t, trunk; tl, tail; ts, tassel." figureDoi="http://doi.org/10.5281/zenodo.5194634" httpUri="https://zenodo.org/record/5194634/files/figure.png" pageId="4" pageNumber="2874">Figure 1</figureCitation>
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). After fixation in 70% ethanol, their colours are seldom altered. They have five body regions: anterium, neck, trunk, tail and tassel (
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<figureCitation id="7B852A757C72AB596D07F809DC77FEFF" box="[777,892,344,368]" captionStart="Figure 1" captionStartId="4.[144,211,1635,1657]" captionTargetBox="[144,1104,582,1603]" captionTargetId="figure-111@4.[144,1104,582,1603]" captionTargetPageId="4" captionText="Figure 1. Habitus of Falcidens vasconiensis, A–E. light micrographs of five specimens. an, anterium; n, neck; t, trunk; tl, tail; ts, tassel." figureDoi="http://doi.org/10.5281/zenodo.5194634" httpUri="https://zenodo.org/record/5194634/files/figure.png" pageId="4" pageNumber="2874">Figure 1A</figureCitation>
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), differing by their morphology and the
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<typeStatus id="3C0588527C72AB596F70F826DEA5FE00" box="[382,430,375,399]" pageId="4" pageNumber="2874">type</typeStatus>
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of sclerites. The neck is delimited by two constrictions: one separating it from the anterium, the other one from the trunk. The specimens have a wide trunk and a tapering tail with very variable length, between a quarter and three quarters of the total length of the specimen (
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<figureCitation id="7B852A757C73AB586CD4F9F9DC66FF4F" box="[730,877,168,192]" captionStart="Figure 1" captionStartId="4.[144,211,1635,1657]" captionTargetBox="[144,1104,582,1603]" captionTargetId="figure-111@4.[144,1104,582,1603]" captionTargetPageId="4" captionText="Figure 1. Habitus of Falcidens vasconiensis, A–E. light micrographs of five specimens. an, anterium; n, neck; t, trunk; tl, tail; ts, tassel." figureDoi="http://doi.org/10.5281/zenodo.5194634" httpUri="https://zenodo.org/record/5194634/files/figure.png" pageId="5" pageNumber="2875">Figure 1B–E</figureCitation>
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). The pallial cavity bears two ctenidia.
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</paragraph>
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<caption id="B7C166787C72AB596E9EFF32DD5DF919" ID-DOI="http://doi.org/10.5281/zenodo.5194634" ID-Zenodo-Dep="5194634" httpUri="https://zenodo.org/record/5194634/files/figure.png" pageId="4" pageNumber="2874" startId="4.[144,211,1635,1657]" targetBox="[144,1104,582,1603]" targetPageId="4">
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<paragraph id="E30136F07C72AB596E9EFF32DD5DF919" blockId="4.[144,1103,1635,1686]" pageId="4" pageNumber="2874">
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Figure 1. Habitus of
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<taxonomicName id="24BE4D737C72AB596F79FF32DD5DF9F7" authorityName="Salvini-Plawen" authorityYear="1996" box="[375,598,1635,1656]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="4" pageNumber="2874" phylum="Mollusca" rank="species" species="vasconiensis">
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<emphasis id="D1CAEAE27C72AB596F79FF32DD5DF9F7" box="[375,598,1635,1656]" italics="true" pageId="4" pageNumber="2874">Falcidens vasconiensis</emphasis>
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</taxonomicName>
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, A–E. light micrographs of five specimens. an, anterium; n, neck; t, trunk; tl, tail; ts, tassel.
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</paragraph>
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</caption>
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<paragraph id="E30136F07C73AB586EDAF87EDE6DFEC8" blockId="5.[212,1172,303,526]" box="[212,358,303,327]" pageId="5" pageNumber="2875">
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<heading id="B849819C7C73AB586EDAF87EDE6DFEC8" box="[212,358,303,327]" fontSize="10" level="3" pageId="5" pageNumber="2875" reason="5">
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<emphasis id="D1CAEAE27C73AB586EDAF87EDE6DFEC8" box="[212,358,303,327]" italics="true" pageId="5" pageNumber="2875">Buccal shield</emphasis>
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</heading>
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</paragraph>
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<paragraph id="E30136F07C73AB586EDAF807DCBBFD81" blockId="5.[212,1172,303,526]" pageId="5" pageNumber="2875">
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The buccal shield sometimes is difficult to distinguish in fixed specimens as the anterior part often contracts during fixation. In the specimens studied, the buccal shield (
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<figureCitation id="7B852A757C73AB586F26F8C7DEC9FE21" box="[296,450,406,430]" captionStart="Figure 2" captionStartId="5.[212,279,1592,1614]" captionTargetBox="[213,1171,839,1559]" captionTargetId="figure-180@5.[212,1172,838,1560]" captionTargetPageId="5" captionText="Figure 2. Falcidens vasconiensis. (A, B) buccal shield, SEM micrographs (anterior to left); (C, D) arrangement of sclerites, SEM micrographs (anterior to left): (C) parallel to the mantle in the ventral trunk; (D) perpendicular to the mantle in the ventral neck." figureDoi="http://doi.org/10.5281/zenodo.5194636" httpUri="https://zenodo.org/record/5194636/files/figure.png" pageId="5" pageNumber="2875">Figure 2A, B</figureCitation>
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) appears circular but really is horseshoe-shaped. It flanks the mouth opening laterally but is not closed preorally. The mouth is situated within a cleft formed by the flanks of the buccal shield; the cleft is three quarters as long as the shield diameter. The shield has a gland associated with it.
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</paragraph>
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<paragraph id="E30136F07C73AB586EDAFB3CDE39FD0A" blockId="5.[212,1172,621,780]" box="[212,306,621,645]" pageId="5" pageNumber="2875">
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<heading id="B849819C7C73AB586EDAFB3CDE39FD0A" box="[212,306,621,645]" fontSize="10" level="3" pageId="5" pageNumber="2875" reason="5">
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<emphasis id="D1CAEAE27C73AB586EDAFB3CDE39FD0A" box="[212,306,621,645]" italics="true" pageId="5" pageNumber="2875">Sclerites</emphasis>
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</heading>
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</paragraph>
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<paragraph id="E30136F07C73AB5A6EDAFBC5DD73FC91" blockId="5.[212,1172,621,780]" lastBlockId="7.[212,1172,168,798]" lastPageId="7" lastPageNumber="2877" pageId="5" pageNumber="2875">
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The scales are adpressed to the mantle and arranged in parallel to the longitudinal axis along the whole body (
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<figureCitation id="7B852A757C73AB586C09FBE5DD72FD43" box="[519,633,692,716]" captionStart="Figure 2" captionStartId="5.[212,279,1592,1614]" captionTargetBox="[213,1171,839,1559]" captionTargetId="figure-180@5.[212,1172,838,1560]" captionTargetPageId="5" captionText="Figure 2. Falcidens vasconiensis. (A, B) buccal shield, SEM micrographs (anterior to left); (C, D) arrangement of sclerites, SEM micrographs (anterior to left): (C) parallel to the mantle in the ventral trunk; (D) perpendicular to the mantle in the ventral neck." figureDoi="http://doi.org/10.5281/zenodo.5194636" httpUri="https://zenodo.org/record/5194636/files/figure.png" pageId="5" pageNumber="2875">Figure 2C</figureCitation>
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), but occasionally they may be perpendicular to the mantle in the neck region (
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<figureCitation id="7B852A757C73AB586C37FB85DDA4FD63" box="[569,687,724,748]" captionStart="Figure 2" captionStartId="5.[212,279,1592,1614]" captionTargetBox="[213,1171,839,1559]" captionTargetId="figure-180@5.[212,1172,838,1560]" captionTargetPageId="5" captionText="Figure 2. Falcidens vasconiensis. (A, B) buccal shield, SEM micrographs (anterior to left); (C, D) arrangement of sclerites, SEM micrographs (anterior to left): (C) parallel to the mantle in the ventral trunk; (D) perpendicular to the mantle in the ventral neck." figureDoi="http://doi.org/10.5281/zenodo.5194636" httpUri="https://zenodo.org/record/5194636/files/figure.png" pageId="5" pageNumber="2875">Figure 2D</figureCitation>
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). Each body region exhibits typical scales (
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<figureCitation id="7B852A757C73AB586ED2FBA5DE36FC83" box="[220,317,756,780]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="5" pageNumber="2875">Figure 3</figureCitation>
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). In the anterior region, the scales are small (30–40 μm long × 10–15 μm wide), oval, flat, with two longitudinal grooves (
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<figureCitation id="7B852A757C71AB5A6D05F9F9DC89FF4F" box="[779,898,168,192]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3A</figureCitation>
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); these scales have two variants in the posterior part of the region: in the first variant, every groove has a small medial keel from the proximal end to the central area (
|
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<figureCitation id="7B852A757C71AB5A6DB2F9B9DB39FE8F" box="[956,1074,232,256]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3B</figureCitation>
|
||
); in the second, the distal end of the scale is more pointed (
|
||
<figureCitation id="7B852A757C71AB5A6D10F859DC99FEAF" box="[798,914,264,288]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3C</figureCitation>
|
||
). The scales are larger in the neck (60–80 μm × 40–50 μm), triangular, flat, with a strengthened margin; they have a medial longitudinal keel narrowing from the proximal to the apical region and one or two shorter lateral keels from the base to the medial part of the scale (
|
||
<figureCitation id="7B852A757C71AB5A6ED2F8D6DE7FFE10" box="[220,372,391,415]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3D, E</figureCitation>
|
||
). There are large scales in the trunk (70–100 μm × 25–50 μm), sagittiform, flat, with a more or less clear waist and a strengthened margin; they may occasionally exhibit a basal notch and very small wings on the base and they have a medial longitudinal keel, which is wider on the distal end, and one to three shorter lateral keels (
|
||
<figureCitation id="7B852A757C71AB5A6F7EFB56DEF6FD90" box="[368,509,519,543]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3F–J</figureCitation>
|
||
). Scales of the tail are similar to those described for the trunk, except for an additional
|
||
<specimenCount id="F5B8FD797C71AB5A6C39FB76DDBAFDB0" box="[567,689,551,575]" pageId="7" pageNumber="2877" type="generic" typeStatus="types">three types</specimenCount>
|
||
of scales in their posterior part: lanceolate and flat scales (80–90 μm × 15–25 μm) with two longitudinal grooves and a medial keel (
|
||
<figureCitation id="7B852A757C71AB5A6F1DFB36DE82FDF0" box="[275,393,615,639]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3K</figureCitation>
|
||
), smaller, lanceolate and flat scales (50–65 μm × 10–20 μm) with a large central groove and two short striations extending from the base (
|
||
<figureCitation id="7B852A757C71AB5A6A1EFBD7DB8FFD11" box="[1040,1156,646,670]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3L</figureCitation>
|
||
), and sagittiform, flat and wide scales (55–65 μm × 20–30 μm) with several short proximal striations (
|
||
<figureCitation id="7B852A757C71AB5A6FC4FB97DD46FD51" box="[458,589,710,734]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3M</figureCitation>
|
||
). The tassel bears long acicular sclerites (100– 200 μm × 5–20 μm); the longest are slightly flattened and exhibit two proximal longitudinal grooves (
|
||
<figureCitation id="7B852A757C71AB5A6FC3FA57DD6CFC91" box="[461,615,774,798]" captionStart="Figure 3" captionStartId="6.[144,211,1508,1530]" captionTargetBox="[144,1104,168,1476]" captionTargetId="figure-1@6.[144,1104,168,1476]" captionTargetPageId="6" captionText="Figure 3. Falcidens vasconiensis, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel." figureDoi="http://doi.org/10.5281/zenodo.5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="7" pageNumber="2877">Figure 3N, O</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="B7C166787C73AB586EDAFF69DCAFF907" ID-DOI="http://doi.org/10.5281/zenodo.5194636" ID-Zenodo-Dep="5194636" httpUri="https://zenodo.org/record/5194636/files/figure.png" pageId="5" pageNumber="2875" startId="5.[212,279,1592,1614]" targetBox="[213,1171,839,1559]" targetPageId="5">
|
||
<paragraph id="E30136F07C73AB586EDAFF69DCAFF907" blockId="5.[212,1171,1592,1672]" pageId="5" pageNumber="2875">
|
||
Figure 2.
|
||
<emphasis id="D1CAEAE27C73AB586F32FF69DD2BF9C1" box="[316,544,1592,1614]" italics="true" pageId="5" pageNumber="2875">
|
||
<taxonomicName id="24BE4D737C73AB586F32FF69DD17F9C1" authorityName="Salvini-Plawen" authorityYear="1996" box="[316,540,1592,1614]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="5" pageNumber="2875" phylum="Mollusca" rank="species" species="vasconiensis">Falcidens vasconiensis</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
(A, B) buccal shield, SEM micrographs (anterior to left); (C, D) arrangement of sclerites, SEM micrographs (anterior to left): (C) parallel to the mantle in the ventral trunk; (D) perpendicular to the mantle in the ventral neck.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="B7C166787C70AB5B6E9EFCB5DB5BF998" ID-DOI="http://doi.org/10.5281/zenodo.5194638" ID-Zenodo-Dep="5194638" httpUri="https://zenodo.org/record/5194638/files/figure.png" pageId="6" pageNumber="2876" startId="6.[144,211,1508,1530]" targetBox="[144,1104,168,1476]" targetPageId="6">
|
||
<paragraph id="E30136F07C70AB5B6E9EFCB5DB5BF998" blockId="6.[144,1104,1508,1559]" pageId="6" pageNumber="2876">
|
||
Figure 3.
|
||
<taxonomicName id="24BE4D737C70AB5B6EF4FCB5DEDCFA76" authorityName="Salvini-Plawen" authorityYear="1996" box="[250,471,1508,1529]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="6" pageNumber="2876" phylum="Mollusca" rank="species" species="vasconiensis">
|
||
<emphasis id="D1CAEAE27C70AB5B6EF4FCB5DEDCFA76" box="[250,471,1508,1529]" italics="true" pageId="6" pageNumber="2876">Falcidens vasconiensis</emphasis>
|
||
</taxonomicName>
|
||
, drawings and SEM micrographs of sclerites typical of each body region. (A–C) Anterior body; (D, E) neck; (F–J) trunk and tail; (K–M) tail; (N, O) tassel.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="E30136F07C71AB5A6EDAFA23DE98FC05" blockId="7.[212,1172,882,1400]" box="[212,403,882,906]" pageId="7" pageNumber="2877">
|
||
<heading id="B849819C7C71AB5A6EDAFA23DE98FC05" box="[212,403,882,906]" fontSize="10" level="3" pageId="7" pageNumber="2877" reason="5">
|
||
<emphasis id="D1CAEAE27C71AB5A6EDAFA23DE98FC05" bold="true" box="[212,403,882,906]" italics="true" pageId="7" pageNumber="2877">Internal anatomy</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="E30136F07C71AB5A6EDAFACBDE87FC3E" blockId="7.[212,1172,882,1400]" box="[212,396,922,945]" pageId="7" pageNumber="2877">
|
||
<emphasis id="D1CAEAE27C71AB5A6EDAFACBDE87FC3E" box="[212,396,922,945]" italics="true" pageId="7" pageNumber="2877">Digestive system</emphasis>
|
||
</paragraph>
|
||
<paragraph id="E30136F07C71AB5A6EDAFA90DE65FAF7" blockId="7.[212,1172,882,1400]" pageId="7" pageNumber="2877">
|
||
The mouth is in an anteroventral position, flanked by the buccal shield. The pharynx is short and the radular sac with radula is situated in its posterior end (
|
||
<figureCitation id="7B852A757C71AB5A6DFDFAB0DB57FC76" box="[1011,1116,993,1017]" captionStart="Figure 4" captionStartId="8.[144,211,1551,1573]" captionTargetBox="[145,1104,169,1519]" captionTargetId="figure-1@8.[144,1104,168,1519]" captionTargetPageId="8" captionText="Figure 4. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive and nervous systems: (A) 3D view reconstruction; (B) line drawing reconstruction. bg, buccal ganglion; bs, buccal shield; bsg, gland of the buccal shield; cg, cerebral ganglia; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; lnc, lateral nerve cord; mg, midgut; pcg, precerebral ganglia; ph, pharynx; rs, radular sac; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194642" httpUri="https://zenodo.org/record/5194642/files/figure.png" pageId="7" pageNumber="2877">Figures 4</figureCitation>
|
||
,
|
||
<figureCitation id="7B852A757C71AB5A6A65FAB0DFEDFB96" captionStart="Figure 5" captionStartId="9.[212,279,1517,1539]" captionTargetBox="[212,1172,167,1486]" captionTargetId="figure-1@9.[212,1172,167,1486]" captionTargetPageId="9" captionText="Figure 5. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive system, lateral view (anterior to right): (A) 3D reconstruction; (B) line drawing reconstruction. (C, D) Radula: (C) schematic drawing; (D) histological section (detail from E); (E, F) Histological sections (section planes shown in A). bs, buccal shield; bsg, gland of the buccal shield; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; mg, midgut; ph, pharynx; r, radula; rs, radular sac." figureDoi="http://doi.org/10.5281/zenodo.5194644" httpUri="https://zenodo.org/record/5194644/files/figure.png" pageId="7" pageNumber="2877">5A, B</figureCitation>
|
||
). The radula (
|
||
<figureCitation id="7B852A757C71AB5A6F84FD50DD2AFB96" box="[394,545,1025,1049]" captionStart="Figure 5" captionStartId="9.[212,279,1517,1539]" captionTargetBox="[212,1172,167,1486]" captionTargetId="figure-1@9.[212,1172,167,1486]" captionTargetPageId="9" captionText="Figure 5. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive system, lateral view (anterior to right): (A) 3D reconstruction; (B) line drawing reconstruction. (C, D) Radula: (C) schematic drawing; (D) histological section (detail from E); (E, F) Histological sections (section planes shown in A). bs, buccal shield; bsg, gland of the buccal shield; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; mg, midgut; ph, pharynx; r, radula; rs, radular sac." figureDoi="http://doi.org/10.5281/zenodo.5194644" httpUri="https://zenodo.org/record/5194644/files/figure.png" pageId="7" pageNumber="2877">Figure 5C, D</figureCitation>
|
||
) shows the typical structure of the genus, made up of a pair of sickle-shaped teeth with sclerotized tips and united at the base by a radular symphysis attached to the cone, two pairs of lateral supports of different sizes with sclerotized distal tips and two support muscles. It is lacking a central plate. The pharynx leads into a short oesophagus (
|
||
<figureCitation id="7B852A757C71AB5A6CA7FDD0DC1EFB16" box="[681,789,1153,1177]" captionStart="Figure 4" captionStartId="8.[144,211,1551,1573]" captionTargetBox="[145,1104,169,1519]" captionTargetId="figure-1@8.[144,1104,168,1519]" captionTargetPageId="8" captionText="Figure 4. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive and nervous systems: (A) 3D view reconstruction; (B) line drawing reconstruction. bg, buccal ganglion; bs, buccal shield; bsg, gland of the buccal shield; cg, cerebral ganglia; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; lnc, lateral nerve cord; mg, midgut; pcg, precerebral ganglia; ph, pharynx; rs, radular sac; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194642" httpUri="https://zenodo.org/record/5194642/files/figure.png" pageId="7" pageNumber="2877">Figures 4</figureCitation>
|
||
,
|
||
<figureCitation id="7B852A757C71AB5A6D29FDD0DC66FB16" box="[807,877,1153,1177]" captionStart="Figure 5" captionStartId="9.[212,279,1517,1539]" captionTargetBox="[212,1172,167,1486]" captionTargetId="figure-1@9.[212,1172,167,1486]" captionTargetPageId="9" captionText="Figure 5. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive system, lateral view (anterior to right): (A) 3D reconstruction; (B) line drawing reconstruction. (C, D) Radula: (C) schematic drawing; (D) histological section (detail from E); (E, F) Histological sections (section planes shown in A). bs, buccal shield; bsg, gland of the buccal shield; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; mg, midgut; ph, pharynx; r, radula; rs, radular sac." figureDoi="http://doi.org/10.5281/zenodo.5194644" httpUri="https://zenodo.org/record/5194644/files/figure.png" pageId="7" pageNumber="2877">5A, B</figureCitation>
|
||
). The pharynx walls and especially the oesophagus walls are thick and glandular (
|
||
<figureCitation id="7B852A757C71AB5A6D61FDF0DB0CFB36" box="[879,1031,1185,1209]" captionStart="Figure 5" captionStartId="9.[212,279,1517,1539]" captionTargetBox="[212,1172,167,1486]" captionTargetId="figure-1@9.[212,1172,167,1486]" captionTargetPageId="9" captionText="Figure 5. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive system, lateral view (anterior to right): (A) 3D reconstruction; (B) line drawing reconstruction. (C, D) Radula: (C) schematic drawing; (D) histological section (detail from E); (E, F) Histological sections (section planes shown in A). bs, buccal shield; bsg, gland of the buccal shield; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; mg, midgut; ph, pharynx; r, radula; rs, radular sac." figureDoi="http://doi.org/10.5281/zenodo.5194644" httpUri="https://zenodo.org/record/5194644/files/figure.png" pageId="7" pageNumber="2877">Figure 5E, F</figureCitation>
|
||
). The oesophagus opens into a wide midgut that is divided posteriorly into a long and narrow intestine and a very wide and large midgut sac (
|
||
<figureCitation id="7B852A757C71AB5A6CFBFDB1DC54FB77" box="[757,863,1248,1272]" captionStart="Figure 4" captionStartId="8.[144,211,1551,1573]" captionTargetBox="[145,1104,169,1519]" captionTargetId="figure-1@8.[144,1104,168,1519]" captionTargetPageId="8" captionText="Figure 4. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive and nervous systems: (A) 3D view reconstruction; (B) line drawing reconstruction. bg, buccal ganglion; bs, buccal shield; bsg, gland of the buccal shield; cg, cerebral ganglia; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; lnc, lateral nerve cord; mg, midgut; pcg, precerebral ganglia; ph, pharynx; rs, radular sac; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194642" httpUri="https://zenodo.org/record/5194642/files/figure.png" pageId="7" pageNumber="2877">Figures 4</figureCitation>
|
||
,
|
||
<figureCitation id="7B852A757C71AB5A6D61FDB1DCB9FB77" box="[879,946,1248,1272]" captionStart="Figure 5" captionStartId="9.[212,279,1517,1539]" captionTargetBox="[212,1172,167,1486]" captionTargetId="figure-1@9.[212,1172,167,1486]" captionTargetPageId="9" captionText="Figure 5. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive system, lateral view (anterior to right): (A) 3D reconstruction; (B) line drawing reconstruction. (C, D) Radula: (C) schematic drawing; (D) histological section (detail from E); (E, F) Histological sections (section planes shown in A). bs, buccal shield; bsg, gland of the buccal shield; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; mg, midgut; ph, pharynx; r, radula; rs, radular sac." figureDoi="http://doi.org/10.5281/zenodo.5194644" httpUri="https://zenodo.org/record/5194644/files/figure.png" pageId="7" pageNumber="2877">5A, B</figureCitation>
|
||
). The posterior end of the midgut sac coincides with the area where the trunk merges with the tail. The intestine is located dorsally, however slightly displaced to the right in the specimen used for reconstruction; the anus is placed between the bases of the ctenidia in the pallial cavity.
|
||
</paragraph>
|
||
<paragraph id="E30136F07C71AB5A6EDAFCECDE8AFA5B" blockId="7.[212,1172,1469,1691]" box="[212,385,1469,1492]" pageId="7" pageNumber="2877">
|
||
<heading id="B849819C7C71AB5A6EDAFCECDE8AFA5B" box="[212,385,1469,1492]" fontSize="10" level="3" pageId="7" pageNumber="2877" reason="5">
|
||
<emphasis id="D1CAEAE27C71AB5A6EDAFCECDE8AFA5B" box="[212,385,1469,1492]" italics="true" pageId="7" pageNumber="2877">Nervous system</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="E30136F07C71AB566EDAFCB5DE14FE30" blockId="7.[212,1172,1469,1691]" lastBlockId="11.[212,1172,168,447]" lastPageId="11" lastPageNumber="2881" pageId="7" pageNumber="2877">
|
||
The cerebral ganglion is located in a dorsoanterior position (
|
||
<figureCitation id="7B852A757C71AB5A6D74FCB5DCE9FA73" box="[890,994,1508,1532]" captionStart="Figure 4" captionStartId="8.[144,211,1551,1573]" captionTargetBox="[145,1104,169,1519]" captionTargetId="figure-1@8.[144,1104,168,1519]" captionTargetPageId="8" captionText="Figure 4. Falcidens vasconiensis. (A, B) Lateral view of anatomical reconstruction of the digestive and nervous systems: (A) 3D view reconstruction; (B) line drawing reconstruction. bg, buccal ganglion; bs, buccal shield; bsg, gland of the buccal shield; cg, cerebral ganglia; dmg, midgut sac; e, oesophagus; gw, glandular wall; i, intestine; lnc, lateral nerve cord; mg, midgut; pcg, precerebral ganglia; ph, pharynx; rs, radular sac; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194642" httpUri="https://zenodo.org/record/5194642/files/figure.png" pageId="7" pageNumber="2877">Figures 4</figureCitation>
|
||
,
|
||
<figureCitation id="7B852A757C71AB5A6DFFFCB5DCF5FA73" box="[1009,1022,1508,1532]" captionStart="Figure 6" captionStartId="10.[144,211,1520,1542]" captionTargetBox="[144,1104,168,1488]" captionTargetId="figure-1@10.[144,1104,168,1488]" captionTargetPageId="10" captionText="Figure 6. Falcidens vasconiensi. (A–C) Anatomical reconstruction of the nervous system: (A) 3D dorsal view; (B) schematic dorsal drawing view; (C) 3D lateral view; (D–F) Histological sections (section planes shown in A). bg, buccal ganglion; cg, cerebral ganglion; fpcg, union of the precerebral ganglia; lnc, lateral nerve cord; pcg 1–3, pairs of cerebral ganglia; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194646" httpUri="https://zenodo.org/record/5194646/files/figure.png" pageId="7" pageNumber="2877">6</figureCitation>
|
||
); frontally to this, there is a cerebral complex formed by the union of three pairs of precerebral ganglia, which clearly separate as they extend towards the anterior part (
|
||
<figureCitation id="7B852A757C71AB5A6A2CFF72DB8FF9B4" box="[1058,1156,1571,1595]" captionStart="Figure 6" captionStartId="10.[144,211,1520,1542]" captionTargetBox="[144,1104,168,1488]" captionTargetId="figure-1@10.[144,1104,168,1488]" captionTargetPageId="10" captionText="Figure 6. Falcidens vasconiensi. (A–C) Anatomical reconstruction of the nervous system: (A) 3D dorsal view; (B) schematic dorsal drawing view; (C) 3D lateral view; (D–F) Histological sections (section planes shown in A). bg, buccal ganglion; cg, cerebral ganglion; fpcg, union of the precerebral ganglia; lnc, lateral nerve cord; pcg 1–3, pairs of cerebral ganglia; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194646" httpUri="https://zenodo.org/record/5194646/files/figure.png" pageId="7" pageNumber="2877">Figure 6</figureCitation>
|
||
). These precerebral ganglia innervate the buccal shield, the gland associated with it, and the oral region. The unpaired lobe found in the posterior part of the brain of other species of the genus is lacking. The anterior part of the cerebral ganglion releases the pairs of ventral, lateral and buccal connectives (
|
||
<figureCitation id="7B852A757C7DAB566D7FF9F9DCC4FF4F" box="[881,975,168,192]" captionStart="Figure 6" captionStartId="10.[144,211,1520,1542]" captionTargetBox="[144,1104,168,1488]" captionTargetId="figure-1@10.[144,1104,168,1488]" captionTargetPageId="10" captionText="Figure 6. Falcidens vasconiensi. (A–C) Anatomical reconstruction of the nervous system: (A) 3D dorsal view; (B) schematic dorsal drawing view; (C) 3D lateral view; (D–F) Histological sections (section planes shown in A). bg, buccal ganglion; cg, cerebral ganglion; fpcg, union of the precerebral ganglia; lnc, lateral nerve cord; pcg 1–3, pairs of cerebral ganglia; vnc, ventral nerve cord." figureDoi="http://doi.org/10.5281/zenodo.5194646" httpUri="https://zenodo.org/record/5194646/files/figure.png" pageId="11" pageNumber="2881">Figure 6</figureCitation>
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), which originate close to each other and separate progressively. The buccal connectives end in the buccal ganglia, which are located at both sides of the radular sac. The ventral and lateral connectives continue along the ventral and lateral cords, which are connected by ventral commissures and lateroventral connectives. Both ventral and both lateral cords extend along the animal and unite in the posterior region, forming a ganglion and the suprarectal commissure; from here they innervate the pair of ctenidia and the dorsoterminal sense organ, which is located in a long groove dorsal to the pallial cavity.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |