175 lines
28 KiB
XML
175 lines
28 KiB
XML
<document id="AA70CBD29A62721DA5007A427B3FB006" ID-DOI="10.5281/zenodo.205235" ID-GBIF-Dataset="58869148-c1e6-483c-9a76-0f1976cdeda9" ID-ISSN="1175-5326" ID-Zenodo-Dep="205235" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460124878277" checkinUser="plazi" docAuthor="Galea, Horia R." docDate="2010" docId="03E7237EFFFB4D58FF771A6AF03CFCEA" docLanguage="en" docName="zt02336p018.pdf.imf" docOrigin="Zootaxa 2336" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Sertularella" docType="treatment" docVersion="13" lastPageNumber="10" masterDocId="FFDE5B06FFF34D51FFE01E40F349FFB8" masterDocTitle="Notes on a small collection of thecate hydroids (Cnidaria: Hydrozoa) from Tristan da Cunha, south Atlantic" masterLastPageNumber="18" masterPageNumber="1" pageNumber="9" updateTime="1698235000374" updateUser="plazi">
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<mods:title id="BB422175B704D5AEBC95913231ECF560">Notes on a small collection of thecate hydroids (Cnidaria: Hydrozoa) from Tristan da Cunha, south Atlantic</mods:title>
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<mods:name id="0052EDA6352B4CCD80B89A9A840FAEAF" type="personal">
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<mods:namePart id="4E155FECAB1E7A2ECF445F5AEB3AA932">Galea, Horia R.</mods:namePart>
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<mods:title id="8AEA40BD8A0092217BD38B389D6CD514">Zootaxa</mods:title>
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<mods:date id="2E53C68383538027C63B56332F4B3629">2010</mods:date>
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<mods:number id="BAAC250315B53D01AF5A96D87C7F5807">2336</mods:number>
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<mods:identifier id="12B0E4F48A120F4CAAAC4DAF601FDB84" type="DOI">10.5281/zenodo.205235</mods:identifier>
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<treatment id="03E7237EFFFB4D58FF771A6AF03CFCEA" ID-DOI="http://doi.org/10.5281/zenodo.6209998" ID-GBIF-Taxon="124955495" ID-Zenodo-Dep="6209998" LSID="urn:lsid:plazi:treatment:03E7237EFFFB4D58FF771A6AF03CFCEA" httpUri="http://treatment.plazi.org/id/03E7237EFFFB4D58FF771A6AF03CFCEA" lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
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<subSubSection id="C354C1E3FFFB4D59FF771A6AF26FFBDF" pageId="8" pageNumber="9" type="nomenclature">
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<paragraph id="8BF19268FFFB4D59FF771A6AF218FBFC" blockId="8.[151,337,1066,1127]" box="[151,337,1066,1092]" pageId="8" pageNumber="9">
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<heading id="D0B92504FFFB4D59FF771A6AF218FBFC" bold="true" box="[151,337,1066,1092]" fontSize="11" level="1" pageId="8" pageNumber="9" reason="1">
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<emphasis id="B93A4E7AFFFB4D59FF771A6AF218FBFC" bold="true" box="[151,337,1066,1092]" pageId="8" pageNumber="9">
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<taxonomicName id="4C4EE9EBFFFB4D59FF771A6AF26FFBFC" box="[151,294,1066,1092]" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="8" pageNumber="9" phylum="Cnidaria" rank="genus">
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<emphasis id="B93A4E7AFFFB4D59FF771A6AF26FFBFC" bold="true" box="[151,294,1066,1092]" italics="true" pageId="8" pageNumber="9">Sertularella</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="8BF19268FFFB4D59FF771A0DF26FFBDF" blockId="8.[151,337,1066,1127]" box="[151,294,1101,1127]" pageId="8" pageNumber="9">
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(
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<figureCitation id="13758EEDFFFB4D59FF7F1A0DF397FBDF" box="[159,222,1101,1127]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">fig. 4</figureCitation>
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H–M)
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</paragraph>
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</subSubSection>
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<subSubSection id="C354C1E3FFFB4D59FF771AD8F7BFFB17" box="[151,1270,1176,1199]" pageId="8" pageNumber="9" type="description">
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<paragraph id="8BF19268FFFB4D59FF771AD8F7BFFB17" blockId="8.[151,1270,1176,1199]" box="[151,1270,1176,1199]" pageId="8" pageNumber="9">
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?
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<taxonomicName id="4C4EE9EBFFFB4D59FF491AD8F2E8FB17" box="[169,417,1176,1199]" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="8" pageNumber="9" phylum="Cnidaria" rank="species" species="polyzonias">
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<emphasis id="B93A4E7AFFFB4D59FF491AD8F2E8FB17" box="[169,417,1176,1199]" italics="true" pageId="8" pageNumber="9">Sertularella polyzonias</emphasis>
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</taxonomicName>
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– Warren, 1908: 291,
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<figureCitation id="13758EEDFFFB4D59FD6F1AD8F190FB17" box="[655,729,1176,1199]" captionStart="FIGURE 5" captionStartId="11.[151,258,1034,1058]" captionTargetBox="[177,1410,425,1012]" captionTargetId="figure@11.[173,1413,421,1013]" captionTargetPageId="11" captionText="FIGURE 5. A to C: Plumularia setacea (Linnaeus, 1758) – stem internode and basal part of cladium (A); female gonotheca (B); stolonal nematothecae (C). D: Silicularia rosea Meyen, 1834 – hydrotheca (middle), female (left) and male (right) gonothecae. E: Clytia gracilis (M. Sars, 1850) – hydrotheca atop its pedicel. F: Clytia paulensis (Vanhöffen, 1910) – hydrotheca atop its pedicel. G: Obelia dichotoma (Linnaeus, 1758) – fragment of stem with hydrotheca. H: Obelia geniculata (Linnaeus, 1758) – stem internode with hydrotheca. Scale bars: 100 µm (C); 200 µm (G); 300 µm (A, B, F, H); 400 µm (E); 1 mm (D)." httpUri="https://zenodo.org/record/205240/files/figure.png" pageId="8" pageNumber="9">fig. 5A</figureCitation>
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–B [not
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<taxonomicName id="4C4EE9EBFFFB4D59FCD21AD8F7A3FB17" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[818,1258,1176,1199]" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="8" pageNumber="9" phylum="Cnidaria" rank="species" species="polyzonias">
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<emphasis id="B93A4E7AFFFB4D59FCD21AD8F760FB17" box="[818,1065,1176,1199]" italics="true" pageId="8" pageNumber="9">Sertularella polyzonias</emphasis>
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(Linnaeus, 1758)
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</taxonomicName>
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].
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</paragraph>
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</subSubSection>
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<subSubSection id="C354C1E3FFFB4D59FF771A9DF241FAA4" pageId="8" pageNumber="9" type="materials_examined">
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<paragraph id="8BF19268FFFB4D59FF771A9DF241FAA4" blockId="8.[151,1437,1245,2020]" pageId="8" pageNumber="9">
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<emphasis id="B93A4E7AFFFB4D59FF771A9DF2BBFB4F" bold="true" box="[151,498,1245,1271]" pageId="8" pageNumber="9">Material examined. Stn. I10</emphasis>
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,
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<date id="FFF0B4A8FFFB4D59FDE11A9DF1CAFB4F" box="[513,643,1245,1271]" pageId="8" pageNumber="9" value="2007-11-28">28.xi.2007</date>
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: numerous sterile stems with hydrorhiza creeping on sponge (
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<collectionCode id="ED5F0AADFFFB4D59FAB51A9DF6D2FB4F" box="[1365,1435,1245,1271]" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14908" name="University of Nottingham" pageId="8" pageNumber="9">NHM</collectionCode>
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2009.20).
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</paragraph>
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</subSubSection>
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<subSubSection id="C354C1E3FFFB4D59FF261B67F234F85C" pageId="8" pageNumber="9" type="description">
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<paragraph id="8BF19268FFFB4D59FF261B67F234F85C" blockId="8.[151,1437,1245,2020]" pageId="8" pageNumber="9">
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<emphasis id="B93A4E7AFFFB4D59FF261B67F217FAF9" bold="true" box="[198,350,1319,1345]" pageId="8" pageNumber="9">Description.</emphasis>
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Colonies composed of erect, straight (
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<figureCitation id="13758EEDFFFB4D59FCDE1B68F0CDFAFA" box="[830,900,1320,1346]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">
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fig.
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<date id="FFF0B4A8FFFB4D59FC941B68F0CDFAFA" box="[884,900,1320,1346]" pageId="8" pageNumber="9">4</date>
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</figureCitation>
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I), monosiphonic stems, up to
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<quantity id="4CB63F8DFFFB4D59FB1D1B68F61DFAFA" box="[1277,1364,1320,1346]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="8" pageNumber="9" unit="mm" value="15.0">15 mm</quantity>
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high, arising from tortuous, anastomozing hydrorhiza, creeping on sponge surface; perisarc brown. Basal part of stems of variable length, devoid of hydrothecae; provided with 3 or more wrinkles just above origin from stolon (
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<figureCitation id="13758EEDFFFB4D59FF141BD8F270FA0A" box="[244,313,1432,1458]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">fig. 4</figureCitation>
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H). Stems usually unbranched, although occasionally provided with no more than one side branch, the latter springing from below a stem hydrotheca. Stem and branches, when present, divided into rather short (425–515 µm) internodes, each with a hydrotheca distally; there are up to 35 hydrothecae per erect stem; nodes usually distinct, sloping in alternate directions, diameter 125–160 µm. First internode of a side branch generally longer (515–1160 µm) than distal ones (
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<figureCitation id="13758EEDFFFB4D59FC69186DF085F9FF" box="[905,972,1581,1607]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">fig. 4</figureCitation>
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J), and provided with 3–4 weak annuli basally. Hydrothecae alternate, one per internode, in two coplanar rows; flask-shaped, distinctly swollen on adcauline side (maximum width 220–270 µm) and constricted below aperture (
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<figureCitation id="13758EEDFFFB4D59FB8C1838F7FBF92A" box="[1132,1202,1656,1682]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">fig. 4</figureCitation>
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K). Abcauline wall straight or nearly so, 460–525 µm long; adcauline side adnate for 2/5th; free part S-shaped, convex proximally, concave distally, 335–375 µm long; adnate part slightly curved to nearly straight, 225–260 µm long; base of hydrotheca 115–135 µm wide. Aperture rhomboidal, diameter 170–185 µm, provided with 4 pointed cusps separated by shallow, rounded embayments; operculum composed of 4 triangular plates; margin generally without renovations, occasionally renovated once. Usually three internal, conspicuous projections of perisarc, one abcauline and two latero-adcauline, are found below the hydrothecal aperture (
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<figureCitation id="13758EEDFFFB4D59FB8F191AF7E6F8CC" box="[1135,1199,1882,1908]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">fig. 4</figureCitation>
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M, upper figure). In some hydrothecae, two additional, smaller projections are inserted on both latero-abcauline sides (
|
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<figureCitation id="13758EEDFFFB4D59FAD919C0F632F822" box="[1337,1403,1920,1946]" captionStart="FIGURE 4" captionStartId="6.[151,257,1697,1721]" captionTargetBox="[240,1365,300,1673]" captionTargetId="figure@6.[237,1365,299,1673]" captionTargetPageId="6" captionText="FIGURE 4. A to E: Halecium? delicatulum (Coughtrey, 1876), morphotype 2 (continued) – gonotheca replacing a hydrotheca (A) or arising from stolon (B); mature female gonotheca with eggs (C); various shapes of female gonotheca (D); cross section through gonotheca (E). F and G: Amphisbetia minima (Thompson, 1879) – basal portion of stem (F); gonotheca (G). H to M: Sertularella sp. – basal part of stem (H); fragment of stem showing its straight shape (I) and mode of branching (J); two internodes (K); shape of hydrotheca (L); frontal views of two hydrothecal apertures showing 3 and 5 internal projections of perisarc (M). N and O: Sertularella gayi (Lamouroux, 1821) – fragment of monosiphonic part of stem with basal parts of three side branches (N); various shapes of the hydrotheca (O); P and R: Aglaophenia parvula Bale, 1882 – hydrotheca and detail of its margin (P); female corbula (R). S: Antennella quadriaurita Ritchie, 1909 – detail of stem in lateral (left) and frontal (right) views. Scale bars: 100 µm (M, P); 200 µm (F, S); 300 µm (A, B, E, K, L, O); 400 µm (J); 500 µm (C, D, G); 750 µm (H); 1 mm (I, R); 1.5 mm (N)." httpUri="https://zenodo.org/record/205239/files/figure.png" pageId="8" pageNumber="9">fig. 4</figureCitation>
|
||
M, lower figure). Hydranths badly preserved, the tentacle number and
|
||
<typeStatus id="54F52CCAFFFB4D59FC4A19E5F094F807" box="[938,989,1957,1983]" pageId="8" pageNumber="9">type</typeStatus>
|
||
of nematocysts could not be checked. Gonothecae absent.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C354C1E3FFFA4D58FF241ED7F20CFC94" pageId="9" pageNumber="10" type="discussion">
|
||
<paragraph id="8BF19268FFFA4D58FF241ED7F1E6FED4" blockId="9.[151,1437,151,850]" pageId="9" pageNumber="10">
|
||
<emphasis id="B93A4E7AFFFA4D58FF241ED7F27FFF09" bold="true" box="[196,310,151,177]" pageId="9" pageNumber="10">Remarks</emphasis>
|
||
. The present material fits the description, figures and measurements given by Warren (1908) for specimens originating from the Natal coast, which he erroneously assigned to
|
||
<taxonomicName id="4C4EE9EBFFFA4D58FB981EFDF22FFF44" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="polyzonias">
|
||
<emphasis id="B93A4E7AFFFA4D58FB981EFDF6D5FF6E" box="[1144,1436,189,214]" italics="true" pageId="9" pageNumber="10">Sertularella polyzonias</emphasis>
|
||
(Linnaeus, 1758)
|
||
</taxonomicName>
|
||
. The discovery of fertile material from
|
||
<collectingCountry id="F359D2F8FFFA4D58FCDF1EA2F742FF44" box="[831,1035,226,252]" name="Saint Helena, Ascension and Tristan da Cunha" pageId="9" pageNumber="10">
|
||
<collectingRegion id="498A5C8AFFFA4D58FCDF1EA2F742FF44" box="[831,1035,226,252]" country="Saint Helena, Ascension and Tristan da Cunha" name="Tristan da Cunha" pageId="9" pageNumber="10">Tristan da Cunha</collectingRegion>
|
||
</collectingCountry>
|
||
is necessary to ascertain whether they are conspecific. Both materials share morphological similarities with the European
|
||
<taxonomicName id="4C4EE9EBFFFA4D58FB7F1F48F2EAFEFF" authority="Deshayes & Milne-Edwards, 1836" authorityName="Deshayes & Milne-Edwards" authorityYear="1836" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="ellisii">
|
||
<emphasis id="B93A4E7AFFFA4D58FB7F1F48F7B4FE99" box="[1183,1277,264,289]" italics="true" pageId="9" pageNumber="10">S. ellisii</emphasis>
|
||
(Deshayes & Milne-Edwards, 1836)
|
||
</taxonomicName>
|
||
, as described by Ramil
|
||
<emphasis id="B93A4E7AFFFA4D58FD591F6DF1A5FEFE" box="[697,748,301,326]" italics="true" pageId="9" pageNumber="10">et al</emphasis>
|
||
. (1992), but the dimensions of the latter are comparatively larger, and point towards two distinct species.
|
||
</paragraph>
|
||
<paragraph id="8BF19268FFFA4D58FF241F38F20CFC94" blockId="9.[151,1437,151,850]" pageId="9" pageNumber="10">
|
||
Millard (1957) included Warren’s (1908) specimens in the synonymy of
|
||
<taxonomicName id="4C4EE9EBFFFA4D58FBB71F38F205FE0F" authority="Hartlaub, 1901" authorityName="Hartlaub" authorityYear="1901" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="mediterranea">
|
||
<emphasis id="B93A4E7AFFFA4D58FBB71F38F6D4FE29" box="[1111,1437,376,401]" italics="true" pageId="9" pageNumber="10">Sertularella mediterranea</emphasis>
|
||
Hartlaub, 1901
|
||
</taxonomicName>
|
||
, an opinion not shared here. Upon comparison with fertile specimens referable to Hartlaub’s (1901) species from Hyères (
|
||
<collectingCountry id="F359D2F8FFFA4D58FE101F82F10CFE64" box="[496,581,450,476]" name="France" pageId="9" pageNumber="10">France</collectingCountry>
|
||
, Mediterranean), it becomes obvious that neither the
|
||
<collectingCountry id="F359D2F8FFFA4D58FB5F1F82F65BFE64" box="[1215,1298,450,476]" name="Saint Helena, Ascension and Tristan da Cunha" pageId="9" pageNumber="10">Tristan</collectingCountry>
|
||
specimens, nor those from Natal, share the typical feature of this species,
|
||
<emphasis id="B93A4E7AFFFA4D58FC921FA8F0DCFDB9" box="[882,917,488,513]" italics="true" pageId="9" pageNumber="10">i.e.</emphasis>
|
||
the conspicuously elongated abcauline wall of the hydrotheca (see also Ramil
|
||
<emphasis id="B93A4E7AFFFA4D58FDA41C4DF1CAFD9E" box="[580,643,525,550]" italics="true" pageId="9" pageNumber="10">et al.</emphasis>
|
||
1992). Moreover, the measurements of specimens from Hyères indicate that
|
||
<taxonomicName id="4C4EE9EBFFFA4D58FEDA1C72F148FDF3" box="[314,513,562,587]" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="mediterranea">
|
||
<emphasis id="B93A4E7AFFFA4D58FEDA1C72F148FDF3" box="[314,513,562,587]" italics="true" pageId="9" pageNumber="10">S. mediterranea</emphasis>
|
||
</taxonomicName>
|
||
has thicker stems (diameter at node 190–240 µm) and larger hydrothecae (abcauline side 605–705 µm, free adcauline side 345–380 µm, adnate adcauline side 270–345 µm, maximum width 290–310 µm, and 250–270 µm wide at aperture) than the specimens from both
|
||
<collectingCountry id="F359D2F8FFFA4D58FB5E1C3DF65DFD2F" box="[1214,1300,637,663]" name="Saint Helena, Ascension and Tristan da Cunha" pageId="9" pageNumber="10">Tristan</collectingCountry>
|
||
and Natal. Additionally, the gonothecae of
|
||
<taxonomicName id="4C4EE9EBFFFA4D58FDF01CE2F182FD03" box="[528,715,674,699]" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="mediterranea">
|
||
<emphasis id="B93A4E7AFFFA4D58FDF01CE2F182FD03" box="[528,715,674,699]" italics="true" pageId="9" pageNumber="10">S. mediterranea</emphasis>
|
||
</taxonomicName>
|
||
are
|
||
<date id="FFF0B4A8FFFA4D58FD1E1CE2F0CBFD04" box="[766,898,674,700]" pageId="9" pageNumber="10" value="1555" valueMax="1760">1555–1760</date>
|
||
µm long and have a maximum width of 760– 850 µm, and are therefore comparatively smaller than Warren’s (1908) material. On the other hand, these dimensions corroborate well with the measurements provided by Ramil
|
||
<emphasis id="B93A4E7AFFFA4D58FC011CADF75AFCBE" box="[993,1043,749,774]" italics="true" pageId="9" pageNumber="10">et al</emphasis>
|
||
. (1992) for
|
||
<taxonomicName id="4C4EE9EBFFFA4D58FB411CADF615FCBE" box="[1185,1372,749,774]" class="Hydrozoa" family="Sertulariidae" genus="Sertularella" kingdom="Animalia" order="Leptothecata" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="mediterranea">
|
||
<emphasis id="B93A4E7AFFFA4D58FB411CADF615FCBE" box="[1185,1372,749,774]" italics="true" pageId="9" pageNumber="10">S. mediterranea</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<collectingRegion id="498A5C8AFFFA4D58FF771D52F3A6FC94" box="[151,239,786,812]" country="Spain" name="Galicia" pageId="9" pageNumber="10">Galicia</collectingRegion>
|
||
,
|
||
<collectingCountry id="F359D2F8FFFA4D58FF1A1D52F208FC94" box="[250,321,786,812]" name="Spain" pageId="9" pageNumber="10">Spain</collectingCountry>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C354C1E3FFFA4D58FF241D77F03CFCEA" box="[196,885,823,850]" pageId="9" pageNumber="10" type="distribution">
|
||
<paragraph id="8BF19268FFFA4D58FF241D77F03CFCEA" blockId="9.[151,1437,151,850]" box="[196,885,823,850]" pageId="9" pageNumber="10">
|
||
<emphasis id="B93A4E7AFFFA4D58FF241D77F214FCE9" bold="true" box="[196,349,823,849]" pageId="9" pageNumber="10">Distribution</emphasis>
|
||
. Possibly Natal,
|
||
<collectingCountry id="F359D2F8FFFA4D58FDC41D78F1F2FCEA" box="[548,699,824,850]" name="South Africa" pageId="9" pageNumber="10">
|
||
<collectingRegion id="498A5C8AFFFA4D58FDC41D78F120FCEA" box="[548,617,824,850]" country="Tanzania" name="Kusini Unguja" pageId="9" pageNumber="10">South</collectingRegion>
|
||
Africa
|
||
</collectingCountry>
|
||
(Warren 1908).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |