338 lines
63 KiB
XML
338 lines
63 KiB
XML
<document id="5A1FDE6C5496474D8DF8801DCFC8A2B9" ID-DOI="10.11646/zootaxa.3258.1.2" ID-ISSN="1175-5326" ID-Zenodo-Dep="5249263" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629771628389" checkinUser="felipe" docAuthor="Brunetti, R. & Mastrototaro, F." docDate="2012" docId="BF3F8794B136BF32FF34FE68124CE83F" docLanguage="en" docName="zt03258p036.pdf" docOrigin="Zootaxa 3258 (1)" docSource="https://biotaxa.org/Zootaxa/article/view/zootaxa.3258.1.2" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Botrylloides pizoni Brunetti & Mastrototaro 2012, n. sp." docType="treatment" docVersion="3" lastPageNumber="35" masterDocId="4306FFECB134BF35FFA3FFDE170CE95B" masterDocTitle="Botrylloides pizoni, a new species of Botryllinae (Ascidiacea) from the Mediterranean Sea" masterLastPageNumber="36" masterPageNumber="28" pageNumber="30" updateTime="1699109995716" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="4DFAA8ACF91A143958286C8E3E36B40F">Botrylloides pizoni, a new species of Botryllinae (Ascidiacea) from the Mediterranean Sea</mods:title>
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<mods:namePart id="49190FEAAE793BA7D940C08EAECD218F">Brunetti, R.</mods:namePart>
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<mods:affiliation id="648B704E3A08D3300D246B690FF6D792">External collaborator, Natural History Museum of Venice, S. Croce 1730, I- 30135 Venezia, Italy. Email: ric. brunetti @ gmail. com Department of Biology, University of Bari, Via Orabona 4, I- 70125 Bari, Italy. Email: f. mastrototaro @ biologia. uniba. it * Corresponding author</mods:affiliation>
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<mods:namePart id="ABCD905275BB81140FC1C7082C022A84">Mastrototaro, F.</mods:namePart>
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<mods:title id="F4BBAA36C301F538B23BF9BFB03D1904">Zootaxa</mods:title>
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<mods:date id="C29EFD4D045B2E4D68B96AE5F2D1E5E3">2012</mods:date>
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<mods:number id="398AC6F323BD6FA46A8C1F3BF6C8B221">2012-04-05</mods:number>
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<mods:number id="BFBEF8DFD88B192BFD469A0498A3E588">3258</mods:number>
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<mods:url id="F668A530A75BA1FCB8C68350E5029636">https://biotaxa.org/Zootaxa/article/view/zootaxa.3258.1.2</mods:url>
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<mods:identifier id="24E47E0657BE703D30E25F1FD09B5091" type="DOI">10.11646/zootaxa.3258.1.2</mods:identifier>
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<subSubSection id="7F8C6509B136BF37FF34FE6816CEE88B" box="[151,450,438,464]" pageId="2" pageNumber="30" type="nomenclature">
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<paragraph id="37293682B136BF37FF34FE6816CEE88B" blockId="2.[151,450,438,464]" box="[151,450,438,464]" pageId="2" pageNumber="30">
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<heading id="6C6181EEB136BF37FF34FE6816CEE88B" bold="true" box="[151,450,438,464]" fontSize="11" level="1" pageId="2" pageNumber="30" reason="1">
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<emphasis id="05E2EA90B136BF37FF34FE6816CEE88B" bold="true" box="[151,450,438,464]" pageId="2" pageNumber="30">
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<taxonomicName id="F0964D01B136BF37FF34FE681674E88B" ID-CoL="MPNG" authority="Brunetti & Mastrototaro, 2012" authorityName="Brunetti & Mastrototaro" authorityYear="2012" box="[151,376,438,464]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="2" pageNumber="30" phylum="Chordata" rank="species" species="pizoni" status="sp. nov.">
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<emphasis id="05E2EA90B136BF37FF34FE681674E88B" bold="true" box="[151,376,438,464]" italics="true" pageId="2" pageNumber="30">Botrylloides pizoni</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="1ED157EBB136BF37FE23FE6816CEE88B" box="[384,450,438,464]" pageId="2" pageNumber="30" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<subSubSection id="7F8C6509B136BF32FF34FE23124CE83F" lastPageId="7" lastPageNumber="35" pageId="2" pageNumber="30" type="etymology">
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<paragraph id="37293682B136BF37FF34FE231587EB62" blockId="2.[151,1437,509,2023]" pageId="2" pageNumber="30">
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<emphasis id="05E2EA90B136BF37FF34FE231601EB4E" box="[151,269,509,533]" italics="true" pageId="2" pageNumber="30">Etymology</emphasis>
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. The species is named after Antoine Pizon—the great French zoologist author of the fundamental work on the blastogenesis of the botryllids (1893).
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</paragraph>
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<paragraph id="37293682B136BF37FF64FD9B154DEA4A" blockId="2.[151,1437,509,2023]" pageId="2" pageNumber="30">
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<emphasis id="05E2EA90B136BF37FF64FD9B1626EB06" box="[199,298,581,605]" italics="true" pageId="2" pageNumber="30">Colonies</emphasis>
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. Living specimens are mainly violet or from lilac to violet in colour, but red and orange colonies were also found (
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<figureCitation id="AFAD2A07B136BF37FEBCFDB7169EEBDA" box="[287,402,617,641]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="2" pageNumber="30">Figs 2a–e</figureCitation>
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). The investing colonies are often lobed, and in the eutrophic waters of the collection site; they may reach large dimensions (several square decimetres) and thicknesses of up to
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<quantity id="F06E9B67B136BF37FBFCFD5313BDEBFE" box="[1119,1201,653,677]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="2" pageNumber="30" unit="cm" value="2.5" valueMax="3.0" valueMin="2.0">2-3 cm</quantity>
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. Zooids are arranged in “
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<taxonomicName id="F0964D01B136BF37FF61FD6F1602EB92" baseAuthorityName="Savigny" baseAuthorityYear="1816" box="[194,270,689,713]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="2" pageNumber="30" phylum="Chordata" rank="species" species="leachii">
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<emphasis id="05E2EA90B136BF37FF61FD6F1602EB92" box="[194,270,689,713]" italics="true" pageId="2" pageNumber="30">leachii</emphasis>
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</taxonomicName>
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<typeStatus id="E82D8820B136BF37FEB5FD6F1644EB92" box="[278,328,689,713]" pageId="2" pageNumber="30">type</typeStatus>
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” systems (
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<bibRefCitation id="53074B73B136BF37FE66FD6F1563EB92" author="Brunetti, R." box="[453,623,689,713]" pageId="2" pageNumber="30" pagination="18 - 32" refId="ref3945" refString="Brunetti, R. (2009) Botryllid species (Tunicata, Ascidiacea) from the Mediterranean coast of Israel, with some consideration on the systematic of Botryllinae. Zootaxa, 2289, 18 - 32." type="journal article" year="2009">Brunetti, 2009</bibRefCitation>
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). Zooid systems are usually in close proximity (
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<figureCitation id="AFAD2A07B136BF37FB37FD6F1209EB92" box="[1172,1285,689,713]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="2" pageNumber="30">Figs 2a–d</figureCitation>
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) but in some colonies (here called
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<emphasis id="05E2EA90B136BF37FE2EFD0B1513EBB6" box="[397,543,725,749]" italics="true" pageId="2" pageNumber="30">mammillated</emphasis>
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) there are areas, between them without zooids, where the colonial test forms prominences (
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<figureCitation id="AFAD2A07B136BF37FE96FD2716A5EA4A" box="[309,425,761,785]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="2" pageNumber="30">Figs 2 f–g</figureCitation>
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) (see below).
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</paragraph>
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<paragraph id="37293682B136BF37FF64FCC3127CEA9D" blockId="2.[151,1437,509,2023]" pageId="2" pageNumber="30">
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<emphasis id="05E2EA90B136BF37FF64FCC31617EA6E" box="[199,283,797,821]" italics="true" pageId="2" pageNumber="30">Zooids.</emphasis>
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Zooids are cylindrical in shape and up to
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long (
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<figureCitation id="AFAD2A07B136BF37FCDFFCC314C2EA6E" box="[892,974,797,821]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Fig. 3a</figureCitation>
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). The oral siphons are smooth edged; the atrial aperture is wide, exposing much of the branchial sac, as usual in animals with this
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<typeStatus id="E82D8820B136BF37FBCDFC9C1392EA01" box="[1134,1182,834,858]" pageId="2" pageNumber="30">type</typeStatus>
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of system; however in this species, the posterior third or more of the branchial sac is not exposed, and all abdominal organs including the rectum lie inside a body wall bag which is embedded in the colonial matrix. The anterior rim of the atrial aperture extends in a more or less developed dorsal languet, according, as usual, the position of the zooid in the system.
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</paragraph>
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<paragraph id="37293682B136BF37FF34FC0C160EED9A" blockId="2.[151,1437,509,2023]" pageId="2" pageNumber="30">
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In living specimens, 4 or 5 tentacles appear to be dominant (
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<figureCitation id="AFAD2A07B136BF37FC9DFC0F149DEAB2" box="[830,913,977,1001]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="2" pageNumber="30">Fig. 2e</figureCitation>
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). However, dissection shows that they number about 30, in 3 order of size regularly arranged according to the following scheme L,S,M,S,L (large, small, medium) (
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<figureCitation id="AFAD2A07B136BF37FF3CFBC717FEED6A" box="[159,242,1049,1073]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Fig. 3d</figureCitation>
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). They rise from a single ring and are finger-like, not differing greatly in diameter from the base to the top. The anterior third of the oral siphons, from the tentacles ring to the edge, is run through by numerous thin circular muscle fibers, the remaining posterior two-thirds have longitudinal fibers (
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<figureCitation id="AFAD2A07B136BF37FC5CFBBF135BED22" box="[1023,1111,1121,1145]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Fig. 3d</figureCitation>
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). Thin longitudinal muscles fibers also descend along the whole body wall, approaching the edge of the atrial aperture and forming a band around it.
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</paragraph>
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<paragraph id="37293682B136BF37FF64FB131202EFE2" blockId="2.[151,1437,509,2023]" pageId="2" pageNumber="30">
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<emphasis id="05E2EA90B136BF37FF64FB131660EDBE" box="[199,364,1229,1253]" italics="true" pageId="2" pageNumber="30">Branchial sac.</emphasis>
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The prepharyngeal ring does not form a V below the dorsal tubercle, which presents a simple, oval, vertically arranged aperture (
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<figureCitation id="AFAD2A07B136BF37FDBDFB2F157FEC52" box="[542,627,1265,1289]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Fig. 3d</figureCitation>
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). The neural gland complex is about 200 µm further down; it is oval in shape with the major longitudinal axis shorter than a stigmata. The prebranchial area is about half the height of a stigmata. There are usually 17 rows of stigmata, all complete, plus 3–4 irregular rows at the posterior end. There is a difference in length between the dorsal and endostylar sides of the branchia, because the latter 3–4 irregular rows of stigmata do not reach the dorsal side (
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<figureCitation id="AFAD2A07B136BF37FDC3FA5F15BFECC2" box="[608,691,1409,1433]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Fig. 3e</figureCitation>
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). However, on the whole, the branchial sac is cylindrical in shape, the same number of stigmata appearing in every row. The longitudinal vessels are not very large and not very protuberant, with a diameter not greater than the space between two stigmata (
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<figureCitation id="AFAD2A07B136BF37FBB0FA171364ECBA" box="[1043,1128,1481,1505]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Fig. 3d</figureCitation>
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). The branchial dorsal (D), lateral (L) and ventral (V) sectors are D>V>L and the stigmata are distributed in a remarkably constant manner, according to the branchial formula: L 4,2,2,5 DL 6,2,2,5 R. The transversal vessels are large, externally protuberant, and filled with pigmented blood cells. Two large muscle bands run on both sides of the dorsal vessel and the endostyle. Other muscle fibers also run along the transversal vessel partly connecting with the longitudinal fibers at the side of the dorsal vessels, and partly passing over the latter and connecting with the fibers at the sides of the endostyle. Muscle fibers also run along the internal longitudinal branchial vessels (
|
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<figureCitation id="AFAD2A07B136BF37FBDCF97F13DFEFE2" box="[1151,1235,1697,1721]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="2" pageNumber="30">Figs 3d</figureCitation>
|
||
–
|
||
<figureCitation id="AFAD2A07B136BF37FB47F97F120DEFE2" box="[1252,1281,1697,1721]" captionStart="FIGURE 5" captionStartId="6.[151,255,1429,1453]" captionTargetBox="[286,1298,194,1405]" captionTargetId="figure-315@6.[286,1300,194,1407]" captionTargetPageId="6" captionText="FIGURE 5. Botrylloides pizoni n. sp. a, filtering zooid with buds; b, stomach and intestine; c, second order bud: iv = internal vesicle in which the two peribranchial chambers are developing, t = testes primordia and o = oocytes; d, branchial wall, observe the presence of fibers muscle (arrow) in transversal vessels and along the dorsal vessel. Scale bars: a, 500 µm; b, 300 µm; c, 50 µm; d, 40µm." figureDoi="http://doi.org/10.5281/zenodo.5249271" httpUri="https://zenodo.org/record/5249271/files/figure.png" pageId="2" pageNumber="30">5d</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="37293682B136BF36FF64F91B1405E832" blockId="2.[151,1437,509,2023]" lastBlockId="3.[151,1436,151,366]" lastPageId="3" lastPageNumber="31" pageId="2" pageNumber="30">
|
||
<emphasis id="05E2EA90B136BF37FF64F91B163FEF86" box="[199,307,1733,1757]" italics="true" pageId="2" pageNumber="30">Gut loop.</emphasis>
|
||
The oesophagus presents four very evident longitudinal, grooves. The stomach is bell-shaped with 11 folds, excluding the typhlosolis (
|
||
<figureCitation id="AFAD2A07B136BF37FD84F937157AEE5A" box="[551,630,1769,1793]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="2" pageNumber="30">Fig. 4a</figureCitation>
|
||
<figureCitation id="AFAD2A07B136BF37FDD5F9261594EE5A" box="[630,664,1770,1798]" captionStart="FIGURE 1" captionStartId="1.[151,255,802,826]" captionText="FIGURE 1. Map of the Gulf of Taranto with collection site." pageId="2" pageNumber="30">
|
||
<subScript id="AB1234C7B136BF37FDD5F9261572EE5D" attach="left" box="[630,638,1784,1798]" fontSize="6" pageId="2" pageNumber="30">1</subScript>
|
||
–a
|
||
</figureCitation>
|
||
<figureCitation id="AFAD2A07B136BF37FD3BF92615ACEE5D" box="[664,672,1784,1798]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="2" pageNumber="30">
|
||
<subScript id="AB1234C7B136BF37FD3BF92615ACEE5D" attach="left" box="[664,672,1784,1798]" fontSize="6" pageId="2" pageNumber="30">2</subScript>
|
||
</figureCitation>
|
||
). Anteriorly, at the cardiac end, the folds extend in ampullae around the oesophagus. On the right side of the stomach, the folds are as long as the stomach itself, posteriorly thinned, not closed, and with reduced glandular epithelium (
|
||
<figureCitation id="AFAD2A07B136BF37FD1CF8EA1446EE17" box="[703,842,1844,1873]" captionStart-0="FIGURE 4" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 5" captionStartId-0="5.[151,255,1578,1602]" captionStartId-1="3.[151,255,1650,1674]" captionStartId-2="4.[151,255,1480,1504]" captionStartId-3="6.[151,255,1429,1453]" captionTargetBox-0="[415,1192,578,1564]" captionTargetBox-1="[281,1306,420,1631]" captionTargetBox-2="[364,1250,195,1453]" captionTargetBox-3="[286,1298,194,1405]" captionTargetId-0="figure-411@5.[395,1192,578,1574]" captionTargetId-1="figure-273@3.[281,1306,420,1644]" captionTargetId-2="figure-271@4.[336,1250,195,1576]" captionTargetId-3="figure-315@6.[286,1300,194,1407]" captionTargetPageId-0="5" captionTargetPageId-1="3" captionTargetPageId-2="4" captionTargetPageId-3="6" captionText-0="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." captionText-1="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." captionText-2="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." captionText-3="FIGURE 5. Botrylloides pizoni n. sp. a, filtering zooid with buds; b, stomach and intestine; c, second order bud: iv = internal vesicle in which the two peribranchial chambers are developing, t = testes primordia and o = oocytes; d, branchial wall, observe the presence of fibers muscle (arrow) in transversal vessels and along the dorsal vessel. Scale bars: a, 500 µm; b, 300 µm; c, 50 µm; d, 40µm." figureDoi-0="http://doi.org/10.5281/zenodo.5249269" figureDoi-1="http://doi.org/10.5281/zenodo.5249265" figureDoi-2="http://doi.org/10.5281/zenodo.5249267" figureDoi-3="http://doi.org/10.5281/zenodo.5249271" httpUri-0="https://zenodo.org/record/5249269/files/figure.png" httpUri-1="https://zenodo.org/record/5249265/files/figure.png" httpUri-2="https://zenodo.org/record/5249267/files/figure.png" httpUri-3="https://zenodo.org/record/5249271/files/figure.png" pageId="2" pageNumber="30">
|
||
Figs 4a
|
||
<subScript id="AB1234C7B136BF37FCB6F89D1411EE0A" attach="left" box="[789,797,1859,1873]" fontSize="6" pageId="2" pageNumber="30">2</subScript>
|
||
–5b
|
||
</figureCitation>
|
||
); on the left side (Nos 1, 2, 10, 11) they are much shorter (
|
||
<figureCitation id="AFAD2A07B136BF37FF5BF8851647EE28" box="[248,331,1883,1907]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="2" pageNumber="30">Fig. 4a</figureCitation>
|
||
<figureCitation id="AFAD2A07B136BF37FEEFF8B41658EE23" box="[332,340,1898,1912]" captionStart="FIGURE 1" captionStartId="1.[151,255,802,826]" captionText="FIGURE 1. Map of the Gulf of Taranto with collection site." pageId="2" pageNumber="30">
|
||
<subScript id="AB1234C7B136BF37FEEFF8B41658EE23" attach="right" box="[332,340,1898,1912]" fontSize="6" pageId="2" pageNumber="30">1</subScript>
|
||
</figureCitation>
|
||
). The typhlosolis runs along the first fold and does not extend over the posterior end of the stomach. The pyloric caecum rises about half-way along its length; it is finger-like, about one-quarter the length of the stomach, straight, or only slightly bent, and with an only slightly swollen tip. Between the typhlosolis and the 11th fold, there is a smooth polygonal area (
|
||
<figureCitation id="AFAD2A07B136BF37FD21F81715DCEEBA" box="[642,720,1993,2017]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="2" pageNumber="30">Fig. 4a</figureCitation>
|
||
<figureCitation id="AFAD2A07B136BF37FD73F80715D4EEBC" box="[720,728,2009,2023]" captionStart="FIGURE 1" captionStartId="1.[151,255,802,826]" captionText="FIGURE 1. Map of the Gulf of Taranto with collection site." pageId="2" pageNumber="30">
|
||
<subScript id="AB1234C7B136BF37FD73F80715D4EEBC" attach="left" box="[720,728,2009,2023]" fontSize="6" pageId="2" pageNumber="30">1</subScript>
|
||
</figureCitation>
|
||
). The major axis of the stomach forms an angle of 45° with the longitudinal axis of the branchial sac, so that the stomach lies almost completely behind the latter and the intestine forms an extensive S-shape (
|
||
<figureCitation id="AFAD2A07B137BF36FE7AFF621533E98F" box="[473,575,188,212]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="3" pageNumber="31">Figs 3a,b</figureCitation>
|
||
–
|
||
<figureCitation id="AFAD2A07B137BF36FDF4FF62157DE98F" box="[599,625,188,212]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="3" pageNumber="31">4a</figureCitation>
|
||
<figureCitation id="AFAD2A07B137BF36FDD2FF151575E982" box="[625,633,203,217]" captionStart="FIGURE 1" captionStartId="1.[151,255,802,826]" captionText="FIGURE 1. Map of the Gulf of Taranto with collection site." pageId="3" pageNumber="31">
|
||
<subScript id="AB1234C7B137BF36FDD2FF151575E982" attach="left" box="[625,633,203,217]" fontSize="6" pageId="3" pageNumber="31">1</subScript>
|
||
</figureCitation>
|
||
). After a short pyloric tract, the intestine is larger in diameter and has a pavement epithelium with cells regularly arranged in transversal rows. The pyloric gland forms a band around the intestine, and its duct opens into the caecum half-way along its length (
|
||
<figureCitation id="AFAD2A07B137BF36FC6CFED9132CE844" box="[975,1056,263,287]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="3" pageNumber="31">Fig. 4a</figureCitation>
|
||
<figureCitation id="AFAD2A07B137BF36FB83FEC81324E87F" box="[1056,1064,278,292]" captionStart="FIGURE 1" captionStartId="1.[151,255,802,826]" captionText="FIGURE 1. Map of the Gulf of Taranto with collection site." pageId="3" pageNumber="31">
|
||
<subScript id="AB1234C7B137BF36FB83FEC81324E87F" attach="left" box="[1056,1064,278,292]" fontSize="6" pageId="3" pageNumber="31">1</subScript>
|
||
</figureCitation>
|
||
). The rectum is long, ascending along the dorsal side of the branchial sac as far as the rim of the atrial aperture (
|
||
<figureCitation id="AFAD2A07B137BF36FBBEFEF31375E81E" box="[1053,1145,301,325]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="3" pageNumber="31">Figs. 3a</figureCitation>
|
||
,
|
||
<figureCitation id="AFAD2A07B137BF36FB26FEF313AFE81E" box="[1157,1187,301,325]" captionStart="FIGURE 5" captionStartId="6.[151,255,1429,1453]" captionTargetBox="[286,1298,194,1405]" captionTargetId="figure-315@6.[286,1300,194,1407]" captionTargetPageId="6" captionText="FIGURE 5. Botrylloides pizoni n. sp. a, filtering zooid with buds; b, stomach and intestine; c, second order bud: iv = internal vesicle in which the two peribranchial chambers are developing, t = testes primordia and o = oocytes; d, branchial wall, observe the presence of fibers muscle (arrow) in transversal vessels and along the dorsal vessel. Scale bars: a, 500 µm; b, 300 µm; c, 50 µm; d, 40µm." figureDoi="http://doi.org/10.5281/zenodo.5249271" httpUri="https://zenodo.org/record/5249271/files/figure.png" pageId="3" pageNumber="31">5a</figureCitation>
|
||
). The anus is smoothedged but when closed, appears to be bilobed (
|
||
<figureCitation id="AFAD2A07B137BF36FD00FE8F15FDE832" box="[675,753,337,361]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="3" pageNumber="31">Fig. 4a</figureCitation>
|
||
<figureCitation id="AFAD2A07B137BF36FD52FEBE15F5E835" box="[753,761,352,366]" captionStart="FIGURE 1" captionStartId="1.[151,255,802,826]" captionText="FIGURE 1. Map of the Gulf of Taranto with collection site." pageId="3" pageNumber="31">
|
||
<subScript id="AB1234C7B137BF36FD52FEBE15F5E835" attach="left" box="[753,761,352,366]" fontSize="6" pageId="3" pageNumber="31">1</subScript>
|
||
</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="63E9660AB137BF36FF34F9AC1369EFF2" ID-DOI="http://doi.org/10.5281/zenodo.5249265" ID-Zenodo-Dep="5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="3" pageNumber="31" startId="3.[151,255,1650,1674]" targetBox="[281,1306,420,1631]" targetPageId="3">
|
||
<paragraph id="37293682B137BF36FF34F9AC1369EFF2" blockId="3.[151,1436,1650,1705]" pageId="3" pageNumber="31">
|
||
<emphasis id="05E2EA90B137BF36FF34F9AC1615EFD1" bold="true" box="[151,281,1650,1674]" pageId="3" pageNumber="31">FIGURE 2.</emphasis>
|
||
Colour morph of
|
||
<taxonomicName id="F0964D01B137BF36FE79F9AC15A8EFD2" authority="Brunetti & Mastrototaro, 2012" authorityName="Brunetti & Mastrototaro" authorityYear="2012" box="[474,676,1650,1673]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="3" pageNumber="31" phylum="Chordata" rank="species" species="pizoni" status="sp. nov.">
|
||
<emphasis id="05E2EA90B137BF36FE79F9AC15A8EFD2" box="[474,676,1650,1673]" italics="true" pageId="3" pageNumber="31">Botrylloides pizoni</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="1ED157EBB137BF36FD0FF9AC15E9EFD2" box="[684,741,1650,1673]" pageId="3" pageNumber="31" rank="species">n. sp.</taxonomicNameLabel>
|
||
a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="37293682B137BF36FF64F92915A5EE99" blockId="3.[151,1436,1783,1986]" pageId="3" pageNumber="31">
|
||
<emphasis id="05E2EA90B137BF36FF64F9291612EE54" box="[199,286,1783,1807]" italics="true" pageId="3" pageNumber="31">Gonads</emphasis>
|
||
. The testis and ovary lie immediately below the buds, the testis anterior to the ovary. The testis is usually formed of about 10 elongated follicles meeting in a single central deferent (
|
||
<figureCitation id="AFAD2A07B137BF36FBFCF8C413BCEE69" box="[1119,1200,1818,1842]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="3" pageNumber="31">Fig. 3f</figureCitation>
|
||
). When the ovary is present the testis is arranged as an arch on the ovary, however when only ripe testes are present the swollen follicles give them a mulberry appearance. In filtering zooids there is only
|
||
<specimenCount id="2190FD0BB137BF36FCDCF8BD14DBEE20" box="[895,983,1891,1915]" pageId="3" pageNumber="31" type="egg">one egg</specimenCount>
|
||
per side, projecting from the body wall. The embryo develops in the same position, enclosed in a brood pouch (
|
||
<figureCitation id="AFAD2A07B137BF36FC6AF8591317EEC4" box="[969,1051,1927,1951]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="3" pageNumber="31">Fig. 3a</figureCitation>
|
||
) as happens in some
|
||
<taxonomicName id="F0964D01B137BF36FAB0F85917E3EE99" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="3" pageNumber="31" phylum="Chordata" rank="species" species="undetermined">
|
||
<emphasis id="05E2EA90B137BF36FAB0F8591290EEC4" box="[1299,1436,1927,1951]" italics="true" pageId="3" pageNumber="31">Botrylloides</emphasis>
|
||
species.
|
||
</taxonomicName>
|
||
Sometimes only one embryo develops.
|
||
</paragraph>
|
||
<caption id="63E9660AB130BF31FF34FA1614B7EF64" ID-DOI="http://doi.org/10.5281/zenodo.5249267" ID-Zenodo-Dep="5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="4" pageNumber="32" startId="4.[151,255,1480,1504]" targetBox="[364,1250,195,1453]" targetPageId="4">
|
||
<paragraph id="37293682B130BF31FF34FA1614B7EF64" blockId="4.[151,1436,1480,1599]" pageId="4" pageNumber="32">
|
||
<emphasis id="05E2EA90B130BF31FF34FA161615ECBB" bold="true" box="[151,281,1480,1504]" pageId="4" pageNumber="32">FIGURE 3.</emphasis>
|
||
<taxonomicName id="F0964D01B130BF31FE82FA1616E7EC84" authority="Brunetti & Mastrototaro, 2012" authorityName="Brunetti & Mastrototaro" authorityYear="2012" box="[289,491,1480,1503]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="4" pageNumber="32" phylum="Chordata" rank="species" species="pizoni" status="sp. nov.">
|
||
<emphasis id="05E2EA90B130BF31FE82FA1616E7EC84" box="[289,491,1480,1503]" italics="true" pageId="4" pageNumber="32">Botrylloides pizoni</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="1ED157EBB130BF31FE50FA161521EC84" box="[499,557,1480,1503]" pageId="4" pageNumber="32" rank="species">n. sp.</taxonomicNameLabel>
|
||
a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="37293682B130BF31FF64F94E16E1EEB7" blockId="4.[151,1436,1680,2028]" pageId="4" pageNumber="32">
|
||
<emphasis id="05E2EA90B130BF31FF64F94E166AEFF3" box="[199,358,1680,1704]" italics="true" pageId="4" pageNumber="32">Reproduction.</emphasis>
|
||
Reproduction takes place from spring to early winter. Like all species of
|
||
<taxonomicName id="F0964D01B130BF31FB0AF94E122BEFF3" box="[1193,1319,1680,1704]" class="Ascidiacea" family="Botryllinae" kingdom="Animalia" order="Stolidobranchia" pageId="4" pageNumber="32" phylum="Chordata" rank="family">Botryllinae</taxonomicName>
|
||
for which the reproductive physiology is known, the present species is protandric (
|
||
<bibRefCitation id="53074B73B130BF31FC18F96A134AEF97" author="Satoh, N." box="[955,1094,1716,1740]" pageId="4" pageNumber="32" pagination="169 - 179" refId="ref4126" refString="Satoh, N. (1994) Developmental biology of ascidians. Cambridge University Press, pp 234 (Sexual reproduction in section 8 pp 169 - 179)" type="book chapter" year="1994">Satoh, 1994</bibRefCitation>
|
||
). The first testis primordia and subsequently oocytes develop in buds (
|
||
<figureCitation id="AFAD2A07B130BF31FDEDF90615B3EFAB" box="[590,703,1752,1776]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="4" pageNumber="32">Figs 3b–c</figureCitation>
|
||
,
|
||
<figureCitation id="AFAD2A07B130BF31FD68F90615EAEFAB" box="[715,742,1752,1776]" captionStart="FIGURE 5" captionStartId="6.[151,255,1429,1453]" captionTargetBox="[286,1298,194,1405]" captionTargetId="figure-315@6.[286,1300,194,1407]" captionTargetPageId="6" captionText="FIGURE 5. Botrylloides pizoni n. sp. a, filtering zooid with buds; b, stomach and intestine; c, second order bud: iv = internal vesicle in which the two peribranchial chambers are developing, t = testes primordia and o = oocytes; d, branchial wall, observe the presence of fibers muscle (arrow) in transversal vessels and along the dorsal vessel. Scale bars: a, 500 µm; b, 300 µm; c, 50 µm; d, 40µm." figureDoi="http://doi.org/10.5281/zenodo.5249271" httpUri="https://zenodo.org/record/5249271/files/figure.png" pageId="4" pageNumber="32">5c</figureCitation>
|
||
) but both regress during the change of generation (samples 1, 4, 11); then, if the season is in favour of sexual reproduction, the gonadic primordia of the buds ripen when the latter become filtering zooids: at first only the testis (samples 3, 6, 9, 10, 13), then also the ovary (samples 7), finally only the ovary (sample 8) whereas the testis are atrophic or absent in filtering zooids (
|
||
<figureCitation id="AFAD2A07B130BF31FB0EF89A13F3EE07" box="[1197,1279,1860,1884]" captionStart="FIGURE 3" captionStartId="4.[151,255,1480,1504]" captionTargetBox="[364,1250,195,1453]" captionTargetId="figure-271@4.[336,1250,195,1576]" captionTargetPageId="4" captionText="FIGURE 3. Botrylloides pizoni n. sp. a, filtering zooid with testes (empty or regressing) and larvae in the brood pouch; b, first order bud with testes and oocytes: primordia of gonads are present in the second order bud (arrow); c, gonadic primordia of fig. b enlarged; d, opened zooid showing tentacles and muscles; e, posterior part of the branchial sac; f, test. Scale bars: a: 1 mm; b: 200 µm; c: 20 µm; d: 500 µm; e: 600 µm; f: 80 µm." figureDoi="http://doi.org/10.5281/zenodo.5249267" httpUri="https://zenodo.org/record/5249267/files/figure.png" pageId="4" pageNumber="32">Fig. 3a</figureCitation>
|
||
). Thus during the reproductive season colonies with “male”, “hermaphroditic” or “feminine” zooids can be found. Some colonies (probably young ones) may of course have no gonads in the reproductive season (samples 2, 14). Lastly, reproduction stops in winter (samples 5, 12). The situation of samples 4 and 11 represents the transition from the reproductive to resting season.
|
||
</paragraph>
|
||
<paragraph id="37293682B131BF30FF64FF491522E8F7" blockId="5.[151,1436,151,535]" pageId="5" pageNumber="33">
|
||
The larvae are liberated from cloacal apertures. However, the dissection of one colony, fixed during the spawning period (sample 8), showed that larvae are discharged from the brood pouch when its external wall breaks into the colonial matrix where many larvae were found. In addition, this colony, which was fixed during the
|
||
<emphasis id="05E2EA90B131BF30FAD7FF3E1290E9A3" box="[1396,1436,224,248]" italics="true" pageId="5" pageNumber="33">bcg</emphasis>
|
||
physiological stage (colony immediately preceding regression of filtering zooids or change of generation), the most external layer of the matrix, which is immediately below the cuticle and surrounds the filtering zooids is mucous. Although this may be an artefact due to a fixation error, we presume it may also be a natural, although temporary, condition which makes it easier for the larvae, which leave the maternal body in a such an unusual way, to reach the cloacal channels and thence leave it.
|
||
</paragraph>
|
||
<paragraph id="37293682B131BF30FF64FE691556EB4C" blockId="5.[151,1436,151,535]" pageId="5" pageNumber="33">
|
||
Swimming larvae are about 1.8 mm long (without fins), of which the trunk is about 600 µm. It has 8 ampullae and 3 adhesive papillae, like almost all species of the subfamily. When near to settling in the trunk, the structures of the future oozooids are visible (
|
||
<figureCitation id="AFAD2A07B131BF30FE5AFE211541EB4C" box="[505,589,511,535]" captionStart="FIGURE 4" captionStartId="5.[151,255,1578,1602]" captionTargetBox="[415,1192,578,1564]" captionTargetId="figure-411@5.[395,1192,578,1574]" captionTargetPageId="5" captionText="FIGURE 4. Botrylloides pizoni n. sp. a1, and a2, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a1 and a2, 300 µm; b: 600 µm." figureDoi="http://doi.org/10.5281/zenodo.5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="5" pageNumber="33">Fig. 4b</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="63E9660AB131BF30FF34F9F416B6EF3F" ID-DOI="http://doi.org/10.5281/zenodo.5249269" ID-Zenodo-Dep="5249269" httpUri="https://zenodo.org/record/5249269/files/figure.png" pageId="5" pageNumber="33" startId="5.[151,255,1578,1602]" targetBox="[415,1192,578,1564]" targetPageId="5">
|
||
<paragraph id="37293682B131BF30FF34F9F416B6EF3F" blockId="5.[151,1435,1578,1641]" pageId="5" pageNumber="33">
|
||
<emphasis id="05E2EA90B131BF30FF34F9F41615EF19" bold="true" box="[151,281,1578,1602]" pageId="5" pageNumber="33">FIGURE 4.</emphasis>
|
||
<taxonomicName id="F0964D01B131BF30FE82F9F416E7EF1A" authority="Brunetti & Mastrototaro, 2012" authorityName="Brunetti & Mastrototaro" authorityYear="2012" box="[289,491,1578,1601]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="5" pageNumber="33" phylum="Chordata" rank="species" species="pizoni" status="sp. nov.">
|
||
<emphasis id="05E2EA90B131BF30FE82F9F416E7EF1A" box="[289,491,1578,1601]" italics="true" pageId="5" pageNumber="33">Botrylloides pizoni</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="1ED157EBB131BF30FE51F9F41520EF1A" box="[498,556,1578,1601]" pageId="5" pageNumber="33" rank="species">n. sp.</taxonomicNameLabel>
|
||
a
|
||
<subScript id="AB1234C7B131BF30FD9CF9E7154AEF1D" attach="left" box="[575,582,1593,1606]" fontSize="5" pageId="5" pageNumber="33">1</subScript>
|
||
, and a
|
||
<subScript id="AB1234C7B131BF30FD2EF9E71598EF1D" attach="left" box="[653,660,1593,1606]" fontSize="5" pageId="5" pageNumber="33">2</subScript>
|
||
, parietal and mesial sides of intestine; b, swimming larva. Scale bars: a
|
||
<subScript id="AB1234C7B131BF30FA37F9E71297EF1D" attach="left" box="[1428,1435,1593,1606]" fontSize="5" pageId="5" pageNumber="33">1</subScript>
|
||
and a
|
||
<subScript id="AB1234C7B131BF30FF73F98217DBEF32" attach="left" box="[208,215,1628,1641]" fontSize="5" pageId="5" pageNumber="33">2</subScript>
|
||
, 300 µm; b: 600 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="37293682B131BF30FF64F94A1693EEAB" blockId="5.[151,1437,1683,2032]" pageId="5" pageNumber="33">
|
||
<emphasis id="05E2EA90B131BF30FF64F94A16EDEFF7" box="[199,481,1684,1708]" italics="true" pageId="5" pageNumber="33">“Mammillated” colonies</emphasis>
|
||
. The curious appearance of the colonies shown in
|
||
<figureCitation id="AFAD2A07B131BF30FB89F94D13ACEFF0" box="[1066,1184,1683,1707]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="5" pageNumber="33">Figs 2 f–g</figureCitation>
|
||
is not common, since only 4 out of 14 samples present this aspect. As noted above, these colonies have areas of test without zooids between systems. A similar condition is not peculiar, and may be observed in many (or all) species of the
|
||
<taxonomicName id="F0964D01B131BF30FF34F9211615EE4C" box="[151,281,1791,1815]" class="Ascidiacea" family="Botryllinae" kingdom="Animalia" order="Stolidobranchia" pageId="5" pageNumber="33" phylum="Chordata" rank="family">Botryllinae</taxonomicName>
|
||
. However, in this case, these areas are prominent, and almost enclose the systems in a furrow. In crosssection, these structures appear to be due to an expansion of the matrix, produced by a large number of vascular ampullae, branching out from vessels which rise vertically between the systems from the basal layer of the colony to the surface (
|
||
<figureCitation id="AFAD2A07B131BF30FEF4F8B516A3EED8" box="[343,431,1899,1923]" captionStart="FIGURE 6" captionStartId="7.[151,255,1812,1836]" captionTargetBox="[151,1433,410,1800]" captionTargetId="figure-151@7.[151,1436,410,1810]" captionTargetPageId="7" captionText="FIGURE 6. Botrylloides pizoni n. sp. a, cross section of a “mammillated” colony; b, enlarged detail from fig a: oa = oral apertures of zooids, cc = cloacal canal. Scale bars: a, 6 mm; b, 500 µm." figureDoi="http://doi.org/10.5281/zenodo.5249273" httpUri="https://zenodo.org/record/5249273/files/figure.png" pageId="5" pageNumber="33">Fig. 6a</figureCitation>
|
||
) They are not linked to any season or particular physiological stage (e.g. sexual reproduction) of the colony, and the reason for the phenomenon is still unclear. Although the zooids do not appear to be in poor conditions, they are clearly suffocated by the surrounding matrix, which may indicate a pathological condition (
|
||
<figureCitation id="AFAD2A07B131BF30FEACF8061668EEAB" box="[271,356,2008,2032]" captionStart="FIGURE 2" captionStartId="3.[151,255,1650,1674]" captionTargetBox="[281,1306,420,1631]" captionTargetId="figure-273@3.[281,1306,420,1644]" captionTargetPageId="3" captionText="FIGURE 2. Colour morph of Botrylloides pizoni n. sp. a–e, normal colonies; e, enlarged detail of fig. d showing a common cloacal aperture and dilated oral aperture with tentacles; f–g, “mammillated” colonies." figureDoi="http://doi.org/10.5281/zenodo.5249265" httpUri="https://zenodo.org/record/5249265/files/figure.png" pageId="5" pageNumber="33">
|
||
Figs
|
||
<quantity id="F06E9B67B131BF30FEEBF8061668EEAB" box="[328,356,2008,2032]" metricMagnitude="-3" metricUnit="kg" metricValue="2.0" pageId="5" pageNumber="33" unit="g" value="2.0">2g</quantity>
|
||
</figureCitation>
|
||
–
|
||
<figureCitation id="AFAD2A07B131BF30FED6F806169EEEAB" box="[373,402,2008,2032]" captionStart="FIGURE 6" captionStartId="7.[151,255,1812,1836]" captionTargetBox="[151,1433,410,1800]" captionTargetId="figure-151@7.[151,1436,410,1810]" captionTargetPageId="7" captionText="FIGURE 6. Botrylloides pizoni n. sp. a, cross section of a “mammillated” colony; b, enlarged detail from fig a: oa = oral apertures of zooids, cc = cloacal canal. Scale bars: a, 6 mm; b, 500 µm." figureDoi="http://doi.org/10.5281/zenodo.5249273" httpUri="https://zenodo.org/record/5249273/files/figure.png" pageId="5" pageNumber="33">6b</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="63E9660AB132BF33FF34FA4B1597EF57" ID-DOI="http://doi.org/10.5281/zenodo.5249271" ID-Zenodo-Dep="5249271" httpUri="https://zenodo.org/record/5249271/files/figure.png" pageId="6" pageNumber="34" startId="6.[151,255,1429,1453]" targetBox="[286,1298,194,1405]" targetPageId="6">
|
||
<paragraph id="37293682B132BF33FF34FA4B1597EF57" blockId="6.[151,1436,1429,1548]" pageId="6" pageNumber="34">
|
||
<emphasis id="05E2EA90B132BF33FF34FA4B1616ECF6" bold="true" box="[151,282,1429,1453]" pageId="6" pageNumber="34">FIGURE 5.</emphasis>
|
||
<taxonomicName id="F0964D01B132BF33FE87FA4B16E3ECF7" authority="Brunetti & Mastrototaro, 2012" authorityName="Brunetti & Mastrototaro" authorityYear="2012" box="[292,495,1429,1452]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="pizoni" status="sp. nov.">
|
||
<emphasis id="05E2EA90B132BF33FE87FA4B16E3ECF7" box="[292,495,1429,1452]" italics="true" pageId="6" pageNumber="34">Botrylloides pizoni</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="1ED157EBB132BF33FE5BFA4B153FECF7" box="[504,563,1429,1452]" pageId="6" pageNumber="34" rank="species">n. sp.</taxonomicNameLabel>
|
||
a, filtering zooid with buds; b, stomach and intestine; c, second order bud: iv = internal vesicle in which the two peribranchial chambers are developing, t = testes primordia and o = oocytes; d, branchial wall, observe the presence of fibers muscle (arrow) in transversal vessels and along the dorsal vessel. Scale bars: a, 500 µm; b, 300 µm; c, 50 µm; d, 40µm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="37293682B132BF33FF64F9E7121EEE2A" blockId="6.[151,1436,1593,2013]" pageId="6" pageNumber="34">
|
||
<emphasis id="05E2EA90B132BF33FF64F9E7163CEF0A" box="[199,304,1593,1617]" italics="true" pageId="6" pageNumber="34">Remarks.</emphasis>
|
||
Among
|
||
<taxonomicName id="F0964D01B132BF33FE37F9E7151EEF0A" box="[404,530,1593,1617]" class="Ascidiacea" family="Botryllinae" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="family">Botryllinae</taxonomicName>
|
||
with “
|
||
<taxonomicName id="F0964D01B132BF33FDC3F9E715A0EF0A" baseAuthorityName="Savigny" baseAuthorityYear="1816" box="[608,684,1593,1617]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="leachii">
|
||
<emphasis id="05E2EA90B132BF33FDC3F9E715A0EF0A" box="[608,684,1593,1617]" italics="true" pageId="6" pageNumber="34">leachii</emphasis>
|
||
</taxonomicName>
|
||
<typeStatus id="E82D8820B132BF33FD17F9E715EAEF0A" box="[692,742,1593,1617]" pageId="6" pageNumber="34">type</typeStatus>
|
||
” systems only one species may be related to the present one:
|
||
<taxonomicName id="F0964D01B132BF33FF34F983151AEF2E" authority=": Monniot, F." authorityName="Monniot, F." box="[151,534,1629,1653]" class="Ascidiacea" family="Styelidae" genus="Botryllus" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="perspicuus">
|
||
<emphasis id="05E2EA90B132BF33FF34F983168CEF2E" box="[151,384,1629,1653]" italics="true" pageId="6" pageNumber="34">Botryllus perspicuus</emphasis>
|
||
: Monniot, F.
|
||
</taxonomicName>
|
||
& C., 2001 (originally described as
|
||
<taxonomicName id="F0964D01B132BF33FC1FF9831378EF2E" box="[956,1140,1629,1653]" class="Ascidiacea" family="Styelidae" genus="Botryllus" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="firmus">
|
||
<emphasis id="05E2EA90B132BF33FC1FF9831378EF2E" box="[956,1140,1629,1653]" italics="true" pageId="6" pageNumber="34">Botryllus firmus</emphasis>
|
||
</taxonomicName>
|
||
(Monniot, F. & C., 1996, where the description is given). Both species are characterised by large zooids, with branchial sacs with numerous rows of stigmata, of which the second is complete, and furnished with a stomach larger at the cardiac than the pyloric end, but devoid of the large ovoid swelling at their cardiac end, which are present in many species of the group (i.e., in the
|
||
<typeStatus id="E82D8820B132BF33FEBDF9301642EE5D" box="[286,334,1774,1798]" pageId="6" pageNumber="34">type</typeStatus>
|
||
species
|
||
<taxonomicName id="F0964D01B132BF33FE12F933159CEE5E" baseAuthorityName="Savigny" baseAuthorityYear="1816" box="[433,656,1773,1797]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="leachii">
|
||
<emphasis id="05E2EA90B132BF33FE12F933159CEE5E" box="[433,656,1773,1797]" italics="true" pageId="6" pageNumber="34">Botrylloides leachii</emphasis>
|
||
</taxonomicName>
|
||
). However, the two species differs in the shape of gut loop and the atrial aperture. In
|
||
<taxonomicName id="F0964D01B132BF33FEFCF8CC16CAEE72" box="[351,454,1809,1833]" class="Ascidiacea" family="Styelidae" genus="Botryllus" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="firmus">
|
||
<emphasis id="05E2EA90B132BF33FEFCF8CC16CAEE72" box="[351,454,1809,1833]" italics="true" pageId="6" pageNumber="34">B. firmus</emphasis>
|
||
</taxonomicName>
|
||
the stomach is horizontal, the intestinal loop describes a close loop, the anus opens one row of stigmata forward of the anterior edge of the intestinal loop and the atrial aperture is very large, reaching the level of the oesophageal opening. In addition, the stomach differs in the number and shape of its folds.
|
||
</paragraph>
|
||
<paragraph id="37293682B132BF32FF64F8A31687E988" blockId="6.[151,1436,1593,2013]" lastBlockId="7.[151,1436,151,356]" lastPageId="7" lastPageNumber="35" pageId="6" pageNumber="34">
|
||
<materialsCitation id="87FE3CDFB132BF32FF64F8A31684E988" lastPageId="7" lastPageNumber="35" location="Gulf of Eilat" pageId="6" pageNumber="34" specimenCount="1">
|
||
Another species with large cylindrical zooid with many rows of stigmata,
|
||
<taxonomicName id="F0964D01B132BF33FB8CF8A31645EEE2" authority="(Shenkar & Monniot, 2006)" baseAuthorityName="Shenkar & Monniot" baseAuthorityYear="2006" class="Ascidiacea" family="Styelidae" genus="Botryllus" kingdom="Animalia" order="Stolidobranchia" pageId="6" pageNumber="34" phylum="Chordata" rank="species" species="eilatensis">
|
||
<emphasis id="05E2EA90B132BF33FB8CF8A31207EECE" box="[1071,1291,1917,1941]" italics="true" pageId="6" pageNumber="34">Botryllus eilatensis</emphasis>
|
||
(
|
||
<bibRefCitation id="53074B73B132BF33FABDF8A3164DEEE2" author="Shenkar, N. & Monniot, F." pageId="6" pageNumber="34" pagination="11 - 19" refId="ref4155" refString="Shenkar, N. & Monniot, F. (2006) A new species of the genus Botryllus (Ascidiacea) from the Red Sea. Zootaxa, 1256, 11 - 19." type="journal article" year="2006">Shenkar & Monniot, 2006</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
, must be compared, because the closeness of its
|
||
<typeStatus id="E82D8820B132BF33FCCEF87C1491EEE1" box="[877,925,1954,1978]" pageId="6" pageNumber="34">type</typeStatus>
|
||
locality, the
|
||
<location id="32496059B132BF33FB8CF87F13CDEEE2" LSID="urn:lsid:plazi:treatment:BF3F8794B136BF32FF34FE68124CE83F:32496059B132BF33FB8CF87F13CDEEE2" box="[1071,1217,1953,1977]" name="Gulf of Eilat" pageId="6" pageNumber="34">Gulf of Eilat</location>
|
||
, and the theoretical possibility of its introduction in the Mediterranean. However the latter species differs in some taxonomically important characters, such as the shape of the stomach and pyloric caecum, the second row of stigmata incomplete, and other minor ones
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="37293682B133BF32FF64FF01124CE83F" blockId="7.[151,1436,151,356]" pageId="7" pageNumber="35">
|
||
The new species described here was first recorded in 2001, but it is difficult to establish whether it is native or an invader. However, although in non-taxonomic studies
|
||
<taxonomicName id="F0964D01B133BF32FC86FEDA14AFE847" box="[805,931,260,284]" class="Ascidiacea" family="Botryllinae" kingdom="Animalia" order="Stolidobranchia" pageId="7" pageNumber="35" phylum="Chordata" rank="family">Botryllinae</taxonomicName>
|
||
are usually all assigned to the most famous local species (in this case,
|
||
<taxonomicName id="F0964D01B133BF32FE65FEF615AAE81B" baseAuthorityName="Pallas" baseAuthorityYear="1766" box="[454,678,296,320]" class="Ascidiacea" family="Styelidae" genus="Botryllus" kingdom="Animalia" order="Stolidobranchia" pageId="7" pageNumber="35" phylum="Chordata" rank="species" species="schlosseri">
|
||
<emphasis id="05E2EA90B133BF32FE65FEF615AAE81B" box="[454,678,296,320]" italics="true" pageId="7" pageNumber="35">Botryllus schlosseri</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="F0964D01B133BF32FD7CFEF614B0E81B" baseAuthorityName="Savigny" baseAuthorityYear="1816" box="[735,956,296,320]" class="Ascidiacea" family="Styelidae" genus="Botrylloides" kingdom="Animalia" order="Stolidobranchia" pageId="7" pageNumber="35" phylum="Chordata" rank="species" species="leachii">
|
||
<emphasis id="05E2EA90B133BF32FD7CFEF614B0E81B" box="[735,956,296,320]" italics="true" pageId="7" pageNumber="35">Botrylloides leachii</emphasis>
|
||
</taxonomicName>
|
||
), it was probably really absent in the area previously, because its large zooids and the peculiar shape of the gut loop would have been noticed earlier.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |