350 lines
54 KiB
XML
350 lines
54 KiB
XML
<document id="C6ED84C9735B4A348428DF88729730EE" ID-DOI="10.11646/zootaxa.4019.1.10" ID-GBIF-Dataset="52ee815e-9e7e-40c3-b900-e0e03f07c8ae" ID-ISSN="1175-5326" ID-Zenodo-Dep="245139" ID-ZooBank="28811FA6-340B-42AE-9D3A-12BA3BFC7EF6" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461260114132" checkinUser="plazi" docAuthor="Capa, María, Faroni-Perez, Larisse & Hutchings, Pat" docDate="2015" docId="03D787B1FFFA2C50FF22A893FF38FA67" docLanguage="en" docName="zt04019p206.pdf" docOrigin="Zootaxa 4019 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Gesaia" docType="treatment" docVersion="11" lastPageNumber="188" masterDocId="FFEEFFC9FFF82C54FFB5AA7DFFE5FF82" masterDocTitle="Sabellariidae from Lizard Island, Great Barrier Reef, including a new species of Lygdamis and notes on external morphology of the median organ" masterLastPageNumber="206" masterPageNumber="184" pageNumber="186" updateTime="1698609282051" updateUser="plazi">
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<mods:mods id="0FC34D5E05393629C3D5CC52636AE676" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="4786FC80C3CCBB6797056E93227A6A2E">
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<mods:title id="0202579C38885E140307FE34314C3888">Sabellariidae from Lizard Island, Great Barrier Reef, including a new species of Lygdamis and notes on external morphology of the median organ</mods:title>
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<mods:name id="66FE93B18A01452230EB6784161F319B" type="personal">
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<mods:namePart id="0D7F58D2201C4005CD6ADC797569688C">Capa, María</mods:namePart>
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<mods:namePart id="BF8BB80DB71CC15FDE05FC6F26B7AC7A">Faroni-Perez, Larisse</mods:namePart>
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<mods:roleTerm id="0245CB585D06B1BE981740D554EBF0D5">Author</mods:roleTerm>
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<mods:namePart id="50500F507E984AF3C4C4DF7A2CA7556D">Hutchings, Pat</mods:namePart>
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<mods:typeOfResource id="ACC4174D6DD80B56312588B032C4FC9D">text</mods:typeOfResource>
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<mods:title id="3E8BC2CC24D9851C2218F2F51AC78CD8">Zootaxa</mods:title>
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<mods:part id="B46C8AADFBD2811B4F2229C8C756ED6B">
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<mods:date id="5373F274DDCEDB21F293C83D13A5DC9B">2015</mods:date>
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<mods:detail id="705DD8C9CCEA04D08B68B082C7D53A11" type="volume">
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<mods:number id="B2F691026FD1C9AF970BC06E08DBB39A">4019</mods:number>
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<mods:identifier id="9A9AC92BEAA94687B596451AD48D80F6" type="DOI">10.11646/zootaxa.4019.1.10</mods:identifier>
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<mods:identifier id="E2B02B06E3FAA37B0A0ADD3DFCA6B92C" type="GBIF-Dataset">52ee815e-9e7e-40c3-b900-e0e03f07c8ae</mods:identifier>
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<mods:identifier id="07072DA50B65BEC5E7D43C55CF6AC6AA" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="39D646BE02B46876BE5CF4A0CFB9ED28" type="Zenodo-Dep">245139</mods:identifier>
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<mods:identifier id="FFDEF4CFE88E6D43874E4C1EEBFFAE05" type="ZooBank">28811FA6-340B-42AE-9D3A-12BA3BFC7EF6</mods:identifier>
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<treatment id="03D787B1FFFA2C50FF22A893FF38FA67" ID-DOI="http://doi.org/10.5281/zenodo.6109685" ID-GBIF-Taxon="119636842" ID-Zenodo-Dep="6109685" LSID="urn:lsid:plazi:treatment:03D787B1FFFA2C50FF22A893FF38FA67" httpUri="http://treatment.plazi.org/id/03D787B1FFFA2C50FF22A893FF38FA67" lastPageId="4" lastPageNumber="188" pageId="2" pageNumber="186">
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<subSubSection id="C364652CFFFA2C56FF22A893FF0EFCA8" pageId="2" pageNumber="186" type="nomenclature">
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<paragraph id="8BC136A7FFFA2C56FF22A893FEF1FC8A" blockId="2.[151,276,750,810]" box="[151,276,750,776]" pageId="2" pageNumber="186">
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<heading id="D08981CBFFFA2C56FF22A893FEF1FC8A" bold="true" box="[151,276,750,776]" fontSize="11" level="1" pageId="2" pageNumber="186" reason="1">
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<emphasis id="B90AEAB5FFFA2C56FF22A893FEF1FC8A" bold="true" box="[151,276,750,776]" pageId="2" pageNumber="186">
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<taxonomicName id="4C7E4D24FFFA2C56FF22A893FF0FFC8A" ID-CoL="84Q87" box="[151,234,750,776]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="2" pageNumber="186" phylum="Annelida" rank="genus">
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<emphasis id="B90AEAB5FFFA2C56FF22A893FF0FFC8A" bold="true" box="[151,234,750,776]" italics="true" pageId="2" pageNumber="186">Gesaia</emphasis>
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</taxonomicName>
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sp.
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BC136A7FFFA2C56FF22A96CFF0EFCA8" blockId="2.[151,276,750,810]" box="[151,235,785,810]" pageId="2" pageNumber="186">
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(
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<figureCitation id="13452A22FFFA2C56FF2AA96CFF05FCA8" box="[159,224,785,810]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C364652CFFFA2C56FF22A924FE53FC14" pageId="2" pageNumber="186" type="materials_examined">
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<paragraph id="8BC136A7FFFA2C56FF22A924FE53FC14" blockId="2.[151,1437,857,1890]" pageId="2" pageNumber="186">
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<emphasis id="B90AEAB5FFFA2C56FF22A924FE67FCF0" bold="true" box="[151,386,857,882]" pageId="2" pageNumber="186">Material examined.</emphasis>
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AM W.47551, Queensland, Osprey Island,
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<geoCoordinate id="EE4A5060FFFA2C56FCC3A927FC35FCF0" box="[886,976,858,882]" direction="south" orientation="latitude" pageId="2" pageNumber="186" precision="925" value="-14.666667">14°40'S</geoCoordinate>
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,
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<geoCoordinate id="EE4A5060FFFA2C56FC6BA924FBA2FCF0" box="[990,1095,857,882]" direction="east" orientation="longitude" pageId="2" pageNumber="186" precision="925" value="145.43333">145°26'E</geoCoordinate>
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,
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<quantity id="4C869B42FFFA2C56FBE1A924FB48FCF3" box="[1108,1197,857,882]" metricMagnitude="1" metricUnit="m" metricValue="1.05" metricValueMax="1.5" metricValueMin="0.6" pageId="2" pageNumber="186" unit="m" value="10.5" valueMax="15.0" valueMin="6.0">6–15 m</quantity>
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, plankton tow,
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<date id="FFC01067FFFA2C56FAE8A927FF37FC14" pageId="2" pageNumber="186" value="1979-10-07">7 Oct 1979</date>
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, larva on SEM stub.
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</paragraph>
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</subSubSection>
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<subSubSection id="C364652CFFFA2C56FF72A9DCFAE6F9E4" pageId="2" pageNumber="186" type="description">
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<paragraph id="8BC136A7FFFA2C56FF72A9DCFC15FC38" blockId="2.[151,1437,857,1890]" box="[199,1008,929,954]" pageId="2" pageNumber="186">
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<emphasis id="B90AEAB5FFFA2C56FF72A9DCFEBCFC38" bold="true" box="[199,345,929,954]" pageId="2" pageNumber="186">Description.</emphasis>
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<emphasis id="B90AEAB5FFFA2C56FEEAA9DCFDE3FC3B" box="[351,518,929,954]" italics="true" pageId="2" pageNumber="186">Colour pattern</emphasis>
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. Preserved specimen lacking pigmentation.
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</paragraph>
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<paragraph id="8BC136A7FFFA2C56FF72A9B8FAD3FB80" blockId="2.[151,1437,857,1890]" pageId="2" pageNumber="186">
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<emphasis id="B90AEAB5FFFA2C56FF72A9B8FF1AFC5C" box="[199,255,965,990]" italics="true" pageId="2" pageNumber="186">Body</emphasis>
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. Larva almost spherical in shape, 650 µm long and 550 µm maximum width excluding chaetae and paleae; with four clearly demarcated segments corresponding to the parathoracic region (chaetigers 3–6).
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</paragraph>
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<paragraph id="8BC136A7FFFA2C56FF72AE70FE4EFA30" blockId="2.[151,1437,857,1890]" pageId="2" pageNumber="186">
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<emphasis id="B90AEAB5FFFA2C56FF72AE70FEA1FBA4" box="[199,324,1037,1062]" italics="true" pageId="2" pageNumber="186">Operculum</emphasis>
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. Operculum completely divided into two free short lobes with distal ends nearly perpendicular to longitudinal body axis (
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<figureCitation id="13452A22FFFA2C56FE1BAE4CFE15FBC8" box="[430,496,1073,1098]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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A–C). Outer row with 8–10 paleae on each lobe. Outer paleae circular in cross section at base, tapering distally (
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<figureCitation id="13452A22FFFA2C56FDB8AE28FDA9FBEC" box="[525,588,1109,1134]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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A–C); shaft ornamented for most of its length with thecae as compact rings with smoothly parallel edges (
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<figureCitation id="13452A22FFFA2C56FE58AE04FDCBFB10" box="[493,558,1145,1170]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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E). Inner row of paleae with 6–8 paleae on each lobe (
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<figureCitation id="13452A22FFFA2C56FB2EAE04FB3EFB10" box="[1179,1243,1145,1170]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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A–C), with stout bases (thicker than outer paleae) and either ellipsoid or circular cross section at base (
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<figureCitation id="13452A22FFFA2C56FBE7AEE0FB74FB34" box="[1106,1169,1181,1206]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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B, G), distally tapering, hollowed, with truncated tip (
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<figureCitation id="13452A22FFFA2C56FE55AEBCFDFAFB58" box="[480,543,1217,1242]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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F); smooth for about half of their length, and distally ornamented with thecae as compact rings with irregular edges proximately, becoming parallel towards the tip (
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<figureCitation id="13452A22FFFA2C56FB8FAE98FB9CFB7C" box="[1082,1145,1253,1278]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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F). Opercular papillae not developed or not observed. One pair of stout nuchal hooks, strongly recurved; margins smooth without limbations (
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<figureCitation id="13452A22FFFA2C56FF2AAF50FF04FAC4" box="[159,225,1325,1350]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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G). Tentacular filaments small, forming a cluster partially covered by paleae and not clearly arranged in rows (
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<figureCitation id="13452A22FFFA2C56FF6AAF2CFEC4FAE8" box="[223,289,1361,1386]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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A, B). Two wide and short palps at dorsal junction of opercular lobes, with ciliation on its surface particularly, long and dense at the base (
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<figureCitation id="13452A22FFFA2C56FDD2AF08FD4DFA0C" box="[615,680,1397,1422]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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D, E). Median organ between palps, with dense ciliation along its dorsal edge (
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<figureCitation id="13452A22FFFA2C56FE93AFE4FE83FA30" box="[294,358,1433,1458]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
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D, F).
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</paragraph>
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<paragraph id="8BC136A7FFFA2C56FF72AFC0FC0EFA54" blockId="2.[151,1437,857,1890]" box="[199,1003,1469,1494]" pageId="2" pageNumber="186">
|
||
<emphasis id="B90AEAB5FFFA2C56FF72AFC0FEFDFA54" box="[199,280,1469,1494]" italics="true" pageId="2" pageNumber="186">Thorax</emphasis>
|
||
. Chaetigers 1 and 2, and corresponding features not yet defined.
|
||
</paragraph>
|
||
<paragraph id="8BC136A7FFFA2C56FF72AF9CFA73F9C0" blockId="2.[151,1437,857,1890]" pageId="2" pageNumber="186">
|
||
<emphasis id="B90AEAB5FFFA2C56FF72AF9CFEADFA78" box="[199,328,1505,1530]" italics="true" pageId="2" pageNumber="186">Parathorax</emphasis>
|
||
. Four chaetigers with two
|
||
<typeStatus id="54C58805FFFA2C56FD20AF9FFD35FA78" box="[661,720,1506,1530]" pageId="2" pageNumber="186">types</typeStatus>
|
||
of notochaetae arranged transversely; four large, lanceolate chaetae, slightly concave and with frayed tips (
|
||
<figureCitation id="13452A22FFFA2C56FD11AC78FD04F99C" box="[676,737,1541,1566]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
|
||
H–I) interspersed with four small and straight capillaries (
|
||
<figureCitation id="13452A22FFFA2C56FADAAC78FF44F9C0" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
|
||
H–I). Incipient conical branchiae present dorsally on notopodia (
|
||
<figureCitation id="13452A22FFFA2C56FCCDAC54FC52F9C0" box="[888,951,1577,1602]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
|
||
H). Parathoracic neurochaetae not formed.
|
||
</paragraph>
|
||
<paragraph id="8BC136A7FFFA2C56FF72AC30FAE6F9E4" blockId="2.[151,1437,857,1890]" box="[199,1283,1613,1638]" pageId="2" pageNumber="186">
|
||
<emphasis id="B90AEAB5FFFA2C56FF72AC30FE51F9E4" box="[199,436,1613,1638]" italics="true" pageId="2" pageNumber="186">Abdomen and cauda.</emphasis>
|
||
Abdominal chaetigers not observed. Cauda not yet developed (
|
||
<figureCitation id="13452A22FFFA2C56FBC9AC30FB5FF9E4" box="[1148,1210,1613,1638]" captionStart="FIGURE 1" captionStartId="3.[151,250,1783,1805]" captionTargetBox="[194,1390,197,1758]" captionTargetId="figure@3.[191,1395,193,1762]" captionTargetPageId="3" captionText="FIGURE 1. Gesaia sp. SEM images of larva, AM W. 47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp." httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="2" pageNumber="186">Fig. 1</figureCitation>
|
||
A–C).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C364652CFFFA2C56FF72AC0CFE62F8E0" pageId="2" pageNumber="186" type="discussion">
|
||
<paragraph id="8BC136A7FFFA2C56FF72AC0CFE62F8E0" blockId="2.[151,1437,857,1890]" pageId="2" pageNumber="186">
|
||
<emphasis id="B90AEAB5FFFA2C56FF72AC0CFEDEF908" bold="true" box="[199,315,1649,1674]" pageId="2" pageNumber="186">Remarks.</emphasis>
|
||
The larva studied seems it is at an advanced stage of metamorphosis, after comparison with those from other sabellariids (e.g.,
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FE6FACE8FDB9F92C" author="Dales" box="[474,604,1685,1710]" pageId="2" pageNumber="186" refString="Dales, R. P. (1952) The development and structure of the anterior region of the body in the Sabellariidae, with special reference to Phragmatopoma californica. Quarterly Journal of Microscopical Science, London, 93, 435 - 452." type="journal article" year="1952">Dales 1952</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FDD2ACE8FCD4F92C" author="Eckelbarger" box="[615,817,1685,1710]" pageId="2" pageNumber="186" refString="Eckelbarger, K. J. (1977) Larval development of Sabellaria floridensis from Florida and Phragmatopoma californica from southern California (Polychaeta: Sabellariidae), with a key to the sabellariid larvae of Florida and a review of development in the family. Bulletin of Marine Science, 27, 241 - 255." type="journal article" year="1977">Eckelbarger 1977</bibRefCitation>
|
||
). Provisional chaetae typical of early larval stages have already disappeared, and the opercular lobes are already well defined and provided with primary paleae. The opercular spines or hooks that appear in advanced larval stage and remain in the adults (e.g.,
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FB68ACA0FA9DF974" author="Bhaud" box="[1245,1400,1757,1782]" pageId="2" pageNumber="186" refString="Bhaud, M. (1975 a) Nouvelles donnees sur les larves de Sabellariidae en Mediterranee. A nnales de l'Institut Oceanographique de Monaco, 51, 155 - 172." type="journal article" year="1975" yearSuffix="a">Bhaud 1975a</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FA33ACA0FA72F974" author="Bhaud" box="[1414,1431,1757,1782]" pageId="2" pageNumber="186" refString="Bhaud, M. (1975 b) Nouvelles observations de Sabellariidae (Annelides Polychetes) dans la region malgache. Cahiers ORSTOM, Serie Oceanographie, 13, 69 - 77." type="journal article" year="1975" yearSuffix="b">b</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FF22AD7FFEC1F898" author="Mauro" box="[151,292,1793,1818]" pageId="2" pageNumber="186" refString="Mauro, N. A. (1975) The premetamorphic developmental rate of Phragmatopoma lapidosa Kinberg, 1867, compared with that in temperate sabellariids. (Polychaeta: Sabellariidae). Bulletin of Marine Science, 25, 387 - 392." type="journal article" year="1975">Mauro 1975</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FE85AD7CFE1CF898" author="Eckelbarger" box="[304,505,1793,1818]" pageId="2" pageNumber="186" refString="Eckelbarger, K. J. (1977) Larval development of Sabellaria floridensis from Florida and Phragmatopoma californica from southern California (Polychaeta: Sabellariidae), with a key to the sabellariid larvae of Florida and a review of development in the family. Bulletin of Marine Science, 27, 241 - 255." type="journal article" year="1977">Eckelbarger 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FDB3AD7CFD7DF898" author="Wilson" box="[518,664,1793,1818]" pageId="2" pageNumber="186" refString="Wilson, D. P. (1977) The distribution, development and settlement of the sabellarian polychaete Lygdamis muratus (Allen) near Plymouth. Journal of the Marine Biological Association of the United Kingdom, 57, 761 - 792." type="journal article" year="1977">Wilson 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFA2C56FD11AD7CFBF8F898" author="Bhaud" box="[676,1053,1793,1818]" pageId="2" pageNumber="186" refString="Bhaud, M. R. & Fernandez-Alamo, M. A. (2001) First description of the larvae of Idanthyrsus (Sabellariidae, Polychaeta) from the Gulf of California and Bahia de Banderas, Mexico. Bulletin of Marine Science, 68, 221 - 232." type="journal article" year="2001">Bhaud & Fernández-Álamo 2001</bibRefCitation>
|
||
) are present. Nevertheless, paleae have still not rotated to the dorsal position, and the mouth or building organ are not yet differentiated as observed in ready to settle larvae.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="DF01662FFFFB2C57FF22AC8AFC82F8EB" httpUri="https://zenodo.org/record/245140/files/figure.png" pageId="3" pageNumber="187" targetBox="[194,1390,197,1758]" targetPageId="3">
|
||
<paragraph id="8BC136A7FFFB2C57FF22AC8AFC82F8EB" blockId="3.[151,1436,1783,1897]" pageId="3" pageNumber="187">
|
||
<emphasis id="B90AEAB5FFFB2C57FF22AC8AFEF6F88F" bold="true" box="[151,275,1783,1805]" pageId="3" pageNumber="187">FIGURE 1.</emphasis>
|
||
<taxonomicName id="4C7E4D24FFFB2C57FEACAC85FE84F88F" box="[281,353,1784,1805]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="3" pageNumber="187" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFB2C57FEACAC85FE84F88F" box="[281,353,1784,1805]" italics="true" pageId="3" pageNumber="187">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
sp. SEM images of larva, AM W.47551. A. Dorsal view; B. Dorsolateral view; C. Antero-ventral view; D. Detail of anterior regions showing median organ and palps, dorsal view; E. Same, ventral view; F. Inner row of paleae; G. Nuchal hooks and shafts of paleae from inner row; H. Parathoracic chaetigers, lateral view; I. Notochaetae of parathoracic chaetiger. Abbreviations: br = branchia, mo = median organ, pa = palp.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C364652CFFFC2C50FF72AAEAFD07FA1E" pageId="4" pageNumber="188" type="reference_group">
|
||
<paragraph id="8BC136A7FFFC2C50FF72AAEAFCB4FEE7" blockId="4.[151,1436,151,1509]" pageId="4" pageNumber="188">
|
||
This
|
||
<taxonomicName id="4C7E4D24FFFC2C50FF4AAAE5FEABFF2D" ID-CoL="84Q87" box="[255,334,152,175]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FF4AAAE5FEABFF2D" box="[255,334,152,175]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
larva bears a conspicuous organ between the palps, similar to the structure referred to as the dorsal hump in
|
||
<taxonomicName id="4C7E4D24FFFC2C50FF48AAC1FDCAFF57" ID-CoL="87GJL" authority="Kinberg, 1867" authorityName="Kinberg" authorityYear="1867" box="[253,559,188,213]" class="Polychaeta" family="Sabellariidae" genus="Idanthyrsus" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FF48AAC1FE64FF57" box="[253,385,188,213]" italics="true" pageId="4" pageNumber="188">Idanthyrsus</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE3CAAC1FDCAFF57" author="Kinberg" box="[393,559,188,213]" pageId="4" pageNumber="188" refString="Kinberg, J. G. H. (1867) Annulata nova. Ofversigt af Koniglich Vetenskapsakademiens forhandlingar, Stockholm, 23, 337 - 357." type="journal article" year="1867">Kinberg, 1867</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C7E4D24FFFC2C50FD8EAAC1FC86FF56" ID-CoL="84TCB" authority="Lamarck, 1818" authorityName="Lamarck" authorityYear="1818" box="[571,867,188,213]" class="Polychaeta" family="Sabellariidae" genus="Sabellaria" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FD8EAAC1FD55FF57" box="[571,688,188,213]" italics="true" pageId="4" pageNumber="188">Sabellaria</emphasis>
|
||
Lamarck, 1818
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C7E4D24FFFC2C50FC2EAAC1FB17FF57" ID-CoL="84S4X" authority="Morch, 1863" authorityName="Morch" authorityYear="1863" box="[923,1266,188,213]" class="Polychaeta" family="Sabellariidae" genus="Phragmatopoma" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FC2EAAC1FBBDFF57" box="[923,1112,188,213]" italics="true" pageId="4" pageNumber="188">Phragmatopoma</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FBD5AAC1FB17FF57" author="Morch" box="[1120,1266,188,213]" pageId="4" pageNumber="188" refString="Morch, O. A. L. (1863) Revisio critica Serpulidarum. Et Bidrag til Rorormenes Naturhistorie. Naturhistorisk Tidsskrift, Kobenhavn, Series 3, 1, 347 - 470." type="journal article" year="1863">Mörch, 1863</bibRefCitation>
|
||
</taxonomicName>
|
||
species (
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FAEEAAC1FF36FF7A" author="Dales" pageId="4" pageNumber="188" refString="Dales, R. P. (1952) The development and structure of the anterior region of the body in the Sabellariidae, with special reference to Phragmatopoma californica. Quarterly Journal of Microscopical Science, London, 93, 435 - 452." type="journal article" year="1952">Dales 1952</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FF56AAA2FE55FF7A" author="Eckelbarger" box="[227,432,223,248]" pageId="4" pageNumber="188" refString="Eckelbarger, K. J. (1977) Larval development of Sabellaria floridensis from Florida and Phragmatopoma californica from southern California (Polychaeta: Sabellariidae), with a key to the sabellariid larvae of Florida and a review of development in the family. Bulletin of Marine Science, 27, 241 - 255." type="journal article" year="1977">Eckelbarger 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE74AAA2FCAEFF7A" author="Bhaud" box="[449,843,223,248]" pageId="4" pageNumber="188" refString="Bhaud, M. R. & Fernandez-Alamo, M. A. (2001) First description of the larvae of Idanthyrsus (Sabellariidae, Polychaeta) from the Gulf of California and Bahia de Banderas, Mexico. Bulletin of Marine Science, 68, 221 - 232." type="journal article" year="2001">Bhaud & Fernández-Álamo 2001</bibRefCitation>
|
||
). This ‘dorsal hump’ apparently disappears before settlement in species that either lack median organ in the adult stages or it is poorly developed. The position and morphology of the structure herein described show some signs of being an early form of the median organ observed in the benthic stages of other members of the family.
|
||
</paragraph>
|
||
<paragraph id="8BC136A7FFFC2C50FF72AB12FADFFC97" blockId="4.[151,1436,151,1509]" pageId="4" pageNumber="188">
|
||
The
|
||
<taxonomicName id="4C7E4D24FFFC2C50FF4FAB0DFEACFE05" ID-CoL="84Q87" box="[250,329,368,391]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FF4FAB0DFEACFE05" box="[250,329,368,391]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
larva described herein bear ornamented paleae with thecae as compact perpendicular rings in both outer and inner opercular rows, different to any other described species from the genus. Some congeners bear poorly expressed thecal margins or smooth outer paleae (
|
||
<taxonomicName id="4C7E4D24FFFC2C50FCA6ABC5FBD9FE52" ID-CoL="3FXQ6" authority="Kirtley, 1994" authorityName="Kirtley" authorityYear="1994" box="[787,1084,439,464]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="lanai">
|
||
<emphasis id="B90AEAB5FFFC2C50FCA6ABC5FC46FE52" box="[787,931,439,464]" italics="true" pageId="4" pageNumber="188">Gesaia lanai</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FC1CABCAFBD9FE52" author="Kirtley" box="[937,1084,439,464]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley, 1994</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C7E4D24FFFC2C50FBC4ABC5FA83FE52" ID-CoL="3FXQ7" authority="Kirtley, 1994" authorityName="Kirtley" authorityYear="1994" box="[1137,1382,439,464]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="ryani">
|
||
<emphasis id="B90AEAB5FFFC2C50FBC4ABC5FB2FFE52" box="[1137,1226,440,464]" italics="true" pageId="4" pageNumber="188">G. ryani</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FB64ABCAFA83FE52" author="Kirtley" box="[1233,1382,439,464]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley, 1994</bibRefCitation>
|
||
</taxonomicName>
|
||
) and only a few species (e.g.,
|
||
<taxonomicName id="4C7E4D24FFFC2C50FE0CABA0FD07FE76" ID-CoL="4FQTN" authority="Fauvel, 1911" authorityName="Fauvel" authorityYear="1911" box="[441,738,476,501]" class="Polychaeta" family="Sabellariidae" genus="Phalacrostemma" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="elegans">
|
||
<emphasis id="B90AEAB5FFFC2C50FE0CABA0FDD4FE77" box="[441,561,476,501]" italics="true" pageId="4" pageNumber="188">G. elegans</emphasis>
|
||
(
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FDF4ABA1FD3FFE76" author="Fauvel" box="[577,730,476,501]" pageId="4" pageNumber="188" refString="Fauvel, P. (1911) Troisieme note preliminaire sur les polychetes provenant des campagnes de l'Hirondelle et de la Princesse- Alice, ou deposees dans la Musee Oceanographique de Monaco. Bulletin de l'Institute Oceanographique, 194, 1 - 41." type="journal article" year="1911">Fauvel, 1911</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C7E4D24FFFC2C50FD44ABA0FBFAFE76" ID-CoL="3FXQ2" authority="Kirtley, 1994" authorityName="Kirtley" authorityYear="1994" box="[753,1055,476,501]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="fauchaldi">
|
||
<emphasis id="B90AEAB5FFFC2C50FD44ABA0FC98FE77" box="[753,893,476,501]" italics="true" pageId="4" pageNumber="188">G. fauchaldi</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FC33ABA1FBFAFE76" author="Kirtley" box="[902,1055,476,501]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley, 1994</bibRefCitation>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C7E4D24FFFC2C50FBEAABA0FA8DFE76" ID-CoL="3FXQ3" authority="Kirtley, 1994" authorityName="Kirtley" authorityYear="1994" box="[1119,1384,476,501]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="fossae">
|
||
<emphasis id="B90AEAB5FFFC2C50FBEAABA0FB22FE76" box="[1119,1223,476,500]" italics="true" pageId="4" pageNumber="188">G. fossae</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FB65ABA1FA8DFE76" author="Kirtley" box="[1232,1384,476,501]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley, 1994</bibRefCitation>
|
||
</taxonomicName>
|
||
) are known to have ornamented thecae, but these form rings with irregular edges or oblique and with spikes (
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FAFEAB82FF36FDBE" author="Kirtley" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley 1994</bibRefCitation>
|
||
), not in regular parallel rings like the Australian larva. The inner paleae described herein have stout bases, similarly to
|
||
<taxonomicName id="4C7E4D24FFFC2C50FE92A835FDB8FDE2" ID-CoL="3FXQ5" authority="Kirtley, 1994" authorityName="Kirtley" authorityYear="1994" box="[295,605,583,608]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="hessi">
|
||
<emphasis id="B90AEAB5FFFC2C50FE92A835FE5FFDE2" box="[295,442,583,608]" italics="true" pageId="4" pageNumber="188">Gesaia hessi</emphasis>
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE70A83AFDB8FDE2" author="Kirtley" box="[453,605,583,608]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley, 1994</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<emphasis id="B90AEAB5FFFC2C50FD29A835FD12FDE2" box="[668,759,584,608]" italics="true" pageId="4" pageNumber="188">G. r y a n i</emphasis>
|
||
. In addition, several circular holes were observed on the surface of inner paleae in
|
||
<taxonomicName id="4C7E4D24FFFC2C50FE62A810FDD1FD07" ID-CoL="3FXQ5" box="[471,564,620,645]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="species" species="hessi">
|
||
<emphasis id="B90AEAB5FFFC2C50FE62A810FDD1FD07" box="[471,564,620,645]" italics="true" pageId="4" pageNumber="188">G. hessi</emphasis>
|
||
</taxonomicName>
|
||
, possibly attributed to endobiotic activity (
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FB8FA811FB31FD06" author="Kirtley" box="[1082,1236,620,645]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley 1994</bibRefCitation>
|
||
), whereas in the described
|
||
<taxonomicName id="4C7E4D24FFFC2C50FEB9A8EDFEBEFD25" ID-CoL="84Q87" box="[268,347,656,679]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FEB9A8EDFEBEFD25" box="[268,347,656,679]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
larva a unique hollow was observed at the tip. It is well known that sabellariids replace their opercular paleae in later larval stages, and these can differ from the primary larval paleae (e.g.,
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FB7BA8C9FA72FD4E" author="Eckelbarger" box="[1230,1431,692,717]" pageId="4" pageNumber="188" refString="Eckelbarger, K. J. (1977) Larval development of Sabellaria floridensis from Florida and Phragmatopoma californica from southern California (Polychaeta: Sabellariidae), with a key to the sabellariid larvae of Florida and a review of development in the family. Bulletin of Marine Science, 27, 241 - 255." type="journal article" year="1977">Eckelbarger 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FF22A8AAFEC9FD72" author="Wilson" box="[151,300,727,752]" pageId="4" pageNumber="188" refString="Wilson, D. P. (1977) The distribution, development and settlement of the sabellarian polychaete Lygdamis muratus (Allen) near Plymouth. Journal of the Marine Biological Association of the United Kingdom, 57, 761 - 792." type="journal article" year="1977">Wilson 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE8EA8AAFDE0FD72" author="Lezzi" box="[315,517,727,752]" pageId="4" pageNumber="188" refString="Lezzi, M., Cardone, F., Mikac, B. & Giangrande, A. (2015) Variation and ontogenetic changes of opercular paleae in a population of Sabellaria spinulosa (Polychaeta: Sabellariidae) from the South Adriatic Sea, with remarks on larval development. Scientia Marina, 79, 137 - 150. http: // dx. doi. org / 10.3989 / scimar. 04127.19 A" type="journal article" year="2015">
|
||
Lezzi
|
||
<emphasis id="B90AEAB5FFFC2C50FE36A8A4FE5BFD72" box="[387,446,727,752]" italics="true" pageId="4" pageNumber="188">et al.</emphasis>
|
||
2015
|
||
</bibRefCitation>
|
||
). Therefore, is not clear if the paleae morphology described herein would have remained after settlement and description of a new species based on larvae paleae morphology is avoided.
|
||
</paragraph>
|
||
<paragraph id="8BC136A7FFFC2C50FF72A962FBDAFC4A" blockId="4.[151,1436,151,1509]" pageId="4" pageNumber="188">
|
||
The paleae show some similarities to those present in members of
|
||
<taxonomicName id="4C7E4D24FFFC2C50FC1BA962FB8EFCBA" ID-CoL="84RZQ" box="[942,1131,799,824]" class="Polychaeta" family="Sabellariidae" genus="Phalacrostemma" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FC1BA962FB8EFCBA" box="[942,1131,799,824]" italics="true" pageId="4" pageNumber="188">Phalacrostemma</emphasis>
|
||
</taxonomicName>
|
||
. Nevertheless, members of these two genera are distinguished, among other features, by the number and shape of the nuchal hooks, with multiple pairs and well-developed limbation in
|
||
<taxonomicName id="4C7E4D24FFFC2C50FD6EA91AFC7DFC02" ID-CoL="84RZQ" box="[731,920,871,896]" class="Polychaeta" family="Sabellariidae" genus="Phalacrostemma" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FD6EA91AFC7DFC02" box="[731,920,871,896]" italics="true" pageId="4" pageNumber="188">Phalacrostemma</emphasis>
|
||
</taxonomicName>
|
||
that is absent in
|
||
<taxonomicName id="4C7E4D24FFFC2C50FBC8A915FB29FCFD" ID-CoL="84Q87" box="[1149,1228,872,895]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FBC8A915FB29FCFD" box="[1149,1228,872,895]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
species, and the arrangement of outer paleae is a spiral in most
|
||
<taxonomicName id="4C7E4D24FFFC2C50FD19A9F1FC8CFC27" ID-CoL="84RZQ" box="[684,873,908,933]" class="Polychaeta" family="Sabellariidae" genus="Phalacrostemma" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FD19A9F1FC8CFC27" box="[684,873,908,933]" italics="true" pageId="4" pageNumber="188">Phalacrostemma</emphasis>
|
||
</taxonomicName>
|
||
species, while they are arranged in semicircles in members of
|
||
<taxonomicName id="4C7E4D24FFFC2C50FE96A9CDFE97FC45" ID-CoL="84Q87" box="[291,370,944,967]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FE96A9CDFE97FC45" box="[291,370,944,967]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE35A9D2FDF1FC4A" author="Kirtley" box="[384,532,943,968]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley 1994</bibRefCitation>
|
||
; Hutchings
|
||
<emphasis id="B90AEAB5FFFC2C50FD2FA9CCFD2EFC4A" box="[666,715,943,968]" italics="true" pageId="4" pageNumber="188">et al</emphasis>
|
||
. 2012;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FCAAA9CDFBD4FC4A" author="Capa" box="[799,1073,943,968]" pageId="4" pageNumber="188" refString="Capa, M. & Hutchings, P. (2014) Sabellariidae. In: Purschke, G. & Westheide, W. (Eds.), Handbook of Zoology Online. De Gruyter. Available from: http: // www. degruyter. com / databasecontent? dbid = zoology & dbsource = % 2 Fdb % 2 Fzoology (accessed 21 July 2015)" type="book" year="2014">Capa & Hutchings 2014</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BC136A7FFFC2C50FF72A9A9FD07FA1E" blockId="4.[151,1436,151,1509]" pageId="4" pageNumber="188">
|
||
This is the first report of
|
||
<taxonomicName id="4C7E4D24FFFC2C50FE53A9A8FDD0FC6E" ID-CoL="84Q87" box="[486,565,981,1004]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FE53A9A8FDD0FC6E" box="[486,565,981,1004]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
in
|
||
<collectingCountry id="F3697637FFFC2C50FDEEA9A9FD20FC6F" box="[603,709,980,1005]" name="Australia" pageId="4" pageNumber="188">Australia</collectingCountry>
|
||
, and also the first record of a typically deep-water sabellariid in surface water plankton samples. Members of
|
||
<taxonomicName id="4C7E4D24FFFC2C50FD14A985FD14FB8D" ID-CoL="84Q87" box="[673,753,1016,1039]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FD14A985FD14FB8D" box="[673,753,1016,1039]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
have been reported from all major oceans and from depths ranging from
|
||
<quantity id="4C869B42FFFC2C50FE86AE61FE3FFBB6" box="[307,474,1052,1077]" metricMagnitude="3" metricUnit="m" metricValue="3.28" metricValueMax="5.79" metricValueMin="0.77" pageId="4" pageNumber="188" unit="m" value="3280.0" valueMax="5790.0" valueMin="770.0">770 to 5790 m</quantity>
|
||
(
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE5FAE61FD65FBB6" author="Kirtley" box="[490,640,1052,1077]" pageId="4" pageNumber="188" refString="Kirtley, D. W. (1994) A review and taxonomic revision of the family Sabellariidae Johnston, 1865 (Annelida; Polychaeta). Sabecon Press Science Series, 1, 1 - 223." type="journal article" year="1994">Kirtley 1994</bibRefCitation>
|
||
), but the eight species described to date have each been reported only once or a few times from nearby localities, leading workers to assume that species were allopatric and narrowly distributed. Undoubtedly, the potential for dispersal over long distances is greater when larvae reach shallower waters, due to low speed currents in deep water (
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FD0DAEFAFC9CFB22" author="Kelly" box="[696,889,1159,1184]" pageId="4" pageNumber="188" refString="Kelly, P., Sulkin, S. D. & Heukelem, W. F. (1982) A dispersal model for larvae of the deep sea red crab Geryon quinquedens based upon behavioural regulation of vertical migration in the hatching stage. Marine Biology, 72, 35 - 43." type="journal article" year="1982">
|
||
Kelly
|
||
<emphasis id="B90AEAB5FFFC2C50FD4AAEF4FCD5FB22" box="[767,816,1159,1184]" italics="true" pageId="4" pageNumber="188">et al</emphasis>
|
||
. 1982
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FC31AEFAFBF2FB22" author="Shanks" box="[900,1047,1159,1184]" pageId="4" pageNumber="188" refString="Shanks, A. L. (1986) Vertical migration and cross-shelf dispersal of larval Cancer spp. and Randallia ornata (Crustacea: Brachyura) off the coast of southern California. Marine Biology, 92, 189 - 199." type="journal article" year="1986">Shanks 1986</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FB96AEFAFACBFB22" author="Bouchet" box="[1059,1326,1159,1184]" pageId="4" pageNumber="188" refString="Bouchet, P. & Waren, A. (1994) Ontogenetic migration and dispersal of deep-sea gastropod larvae. In: Young, C. M. & Eckelbarger, K. E. (Eds.), Invertebrate reproduction, larval biology and recruitment in the Deep Sea Benthos. Columbia University Press, New York, pp. 261 - 83." type="book chapter" year="1994">Bouchet & Waren 1994</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FA8FAEFAFEFEFB46" author="Arellano" pageId="4" pageNumber="188" refString="Arellano, S. M., Van Gaest, A. L., Johnson, S. B., Vrijenhoek, R. C. & Young, C. M. (2014) Larvae from deep-sea methane seeps disperse in surface waters. Proceedings of the Royal Society B 281, 1 - 8. http: // dx. doi. org / 10.1098 / rspb. 2013.3276" type="journal article" year="2014">
|
||
Arellano
|
||
<emphasis id="B90AEAB5FFFC2C50FF22AED0FF29FB47" box="[151,204,1196,1221]" italics="true" pageId="4" pageNumber="188">et al</emphasis>
|
||
. 2014
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFEF4B56FFFC2C50FE9FAED1FDC6FB46" author="Pochelon" box="[298,547,1196,1221]" pageId="4" pageNumber="188" refString="Pochelon, P. N., dos Santos, A., Santos, A. M. P. & Queiroga, H. (2014) Vertical and horizontal larval distribution of an offshore brachyuran crab, Monodaeus couchii, off the south coast of Portugal. Scientia Marina, 78 (2), 249 - 256." type="journal article" year="2014">
|
||
Pochelon
|
||
<emphasis id="B90AEAB5FFFC2C50FE2BAED0FE36FB47" box="[414,467,1196,1221]" italics="true" pageId="4" pageNumber="188">et al</emphasis>
|
||
. 2014
|
||
</bibRefCitation>
|
||
). This suggests a larval ability to survive under a range of physical factors encountered if migrating vertically from the deep to the euphotic zone (e.g., including a broad variation in temperature and pressure). However, before the ability of larvae of
|
||
<taxonomicName id="4C7E4D24FFFC2C50FC0FAE88FBECFA8E" ID-CoL="84Q87" box="[954,1033,1269,1292]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FC0FAE88FBECFA8E" box="[954,1033,1269,1292]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
to disperse long distances can be accepted, substantial investigations on energy content in the oocytes, the velocity of larvae when they migrate upwards and their planktonic larval duration are needed. Interpreting the biogeographic patterns of
|
||
<taxonomicName id="4C7E4D24FFFC2C50FB58AF40FAD9FAD6" ID-CoL="84Q87" box="[1261,1340,1341,1364]" class="Polychaeta" family="Sabellariidae" genus="Gesaia" kingdom="Animalia" order="Sabellida" pageId="4" pageNumber="188" phylum="Annelida" rank="genus">
|
||
<emphasis id="B90AEAB5FFFC2C50FB58AF40FAD9FAD6" box="[1261,1340,1341,1364]" italics="true" pageId="4" pageNumber="188">Gesaia</emphasis>
|
||
</taxonomicName>
|
||
remains a major challenge, and the potential for larval dispersal is important in understanding the spatially fragmented radiation of species distribution in the major oceans.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C364652CFFFC2C50FF72AFDAFF38FA67" pageId="4" pageNumber="188" type="distribution">
|
||
<paragraph id="8BC136A7FFFC2C50FF72AFDAFF38FA67" blockId="4.[151,1436,151,1509]" pageId="4" pageNumber="188">
|
||
<emphasis id="B90AEAB5FFFC2C50FF72AFDAFE85FA42" bold="true" box="[199,352,1447,1472]" pageId="4" pageNumber="188">Distribution.</emphasis>
|
||
Only known from off Lizard Island, close to shore, collected in a plankton tow in
|
||
<quantity id="4C869B42FFFC2C50FAB4AFDAFAB2FA42" box="[1281,1367,1447,1472]" metricMagnitude="1" metricUnit="m" metricValue="1.05" metricValueMax="1.5" metricValueMin="0.6" pageId="4" pageNumber="188" unit="m" value="10.5" valueMax="15.0" valueMin="6.0">6–15 m</quantity>
|
||
water depth.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |