206 lines
32 KiB
XML
206 lines
32 KiB
XML
<document id="EB5D6A894B664B09CA1B03FB39B5A08F" ID-ISSN="1464-5262" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1617217534528" checkinUser="carolina" docAuthor="Peña Cantero, A. L. & Vervoort, W." docDate="2004" docId="038687FCFF8BA7733A4602D8FE0773C4" docLanguage="en" docName="JNATHIST.38.805-861.pdf" docOrigin="Journal of Natural History 38" docStyle="DocumentStyle:443144A73DAE3E092C51A378E4CD0138.2:JNatHist.2003-2004.journal_article.1cover" docStyleId="443144A73DAE3E092C51A378E4CD0138" docStyleName="JNatHist.2003-2004.journal_article.1cover" docStyleVersion="2" docTitle="Oswaldella herwigi El Beshbeeshy 1991" docType="treatment" docVersion="2" lastPageNumber="837" masterDocId="FFBFFF84FF94A75238720600FFFA7605" masterDocTitle="Species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae) from US Antarctic expeditions, with the description of three new species" masterLastPageNumber="861" masterPageNumber="805" pageNumber="835" updateTime="1698898405091" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="13F3D7D2FFB879FB7FBC54AC45E32B00">Species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae) from US Antarctic expeditions, with the description of three new species</mods:title>
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<mods:namePart id="1E88671E007180D0FC158D7E603FD311">Peña Cantero, A. L.</mods:namePart>
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<mods:namePart id="BA2D1628E81419D4308A7C0F3DB93687">Vervoort, W.</mods:namePart>
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<mods:title id="119395ACA4532C6CADEAD1BCD048118F">Journal of Natural History</mods:title>
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<mods:date id="F4BAA65E65CD1703EC60023D8CD456C3">2004</mods:date>
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<taxonomicName id="4C2F4D69FF8BA74D3A4602D8FC0372F4" ID-CoL="75CJF" authority="El Beshbeeshy, 1991" authorityName="El Beshbeeshy" authorityYear="1991" box="[564,1017,1240,1265]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="31" pageNumber="835" phylum="Cnidaria" rank="species" species="herwigi">
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<emphasis id="B95BEAF8FF8BA74D3A4602D8FCFC72F5" bold="true" box="[564,774,1240,1264]" italics="true" pageId="31" pageNumber="835">Oswaldella herwigi</emphasis>
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<bibRefCitation id="EFBE4B1BFF8BA74D3B6202D8FC0372F4" author="EL BESHBEESHY, M." box="[784,1017,1240,1265]" pageId="31" pageNumber="835" refId="ref24722" refString="EL BESHBEESHY, M., 1991, Systematische, Morphologische und Zoogeographische Untersuchungen an den Thekaten Hydroiden des Patagonischen Schelfs. PhD thesis, University of Hamburg, Germany, 390 pp., 102 figures, 80 tables." type="book" year="1991">El Beshbeeshy, 1991</bibRefCitation>
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</taxonomicName>
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</heading>
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</paragraph>
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<subSubSection id="C3356561FF8BA7733AAE02F9FE0773C4" lastPageId="33" lastPageNumber="837" pageId="31" pageNumber="835" type="description">
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<paragraph id="8B9036EAFF8BA74D3AAE02F9FB0E7335" blockId="31.[313,1269,1273,1384]" pageId="31" pageNumber="835">
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(
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<figureCitation id="13142A6FFF8BA74D3A9102F9FCB37314" box="[739,841,1273,1297]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="31" pageNumber="835">figure 10</figureCitation>
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)
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<taxonomicName id="4C2F4D69FF8BA74D394B031BFCC67334" authority="El Beshbeeshy, 1991: 259 - 265" authorityName="El Beshbeeshy" authorityPageNumber="259 - 265" authorityYear="1991" box="[313,828,1306,1329]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="31" pageNumber="835" phylum="Cnidaria" rank="species" species="herwigi">
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<emphasis id="B95BEAF8FF8BA74D394B031BFE0D7335" box="[313,503,1307,1328]" italics="true" pageId="31" pageNumber="835">Oswaldella herwigi</emphasis>
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<bibRefCitation id="EFBE4B1BFF8BA74D3A73031BFCC67334" author="EL BESHBEESHY, M." box="[513,828,1306,1329]" pageId="31" pageNumber="835" refId="ref24722" refString="EL BESHBEESHY, M., 1991, Systematische, Morphologische und Zoogeographische Untersuchungen an den Thekaten Hydroiden des Patagonischen Schelfs. PhD thesis, University of Hamburg, Germany, 390 pp., 102 figures, 80 tables." type="book" year="1991">El Beshbeeshy, 1991: 259–265</bibRefCitation>
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||
</taxonomicName>
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||
, figure 66; Peña Cantero
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<emphasis id="B95BEAF8FF8BA74D3C35031CFB8E7335" box="[1095,1140,1307,1329]" italics="true" pageId="31" pageNumber="835">et al</emphasis>
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||
., 1997: 344;
|
||
</paragraph>
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||
<paragraph id="8B9036EAFF8BA74D39130337FB0F7349" blockId="31.[313,1269,1273,1384]" box="[353,1269,1334,1356]" pageId="31" pageNumber="835">
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||
Peña
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<bibRefCitation id="EFBE4B1BFF8BA74D39E90336FCAE734E" author="A CANTERO, A. L. & GARCIA CARRASCOSA, A. M." box="[411,852,1334,1356]" pageId="31" pageNumber="835" pagination="175 - 180" refId="ref25222" refString="PEN ͠ A CANTERO, A. L. and GARCIA CARRASCOSA, A. M., 1998, Oswaldella vervoorti spec. nov. (Cnidaria: Hydrozoa), a new benthic hydroid from the South Shetland Islands, Antarctica, Zoologische Verhandelingen, 232, 175 - 180." type="journal article" year="1998">Cantero and García Carrascosa, 1998: 179</bibRefCitation>
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||
; 1999: 214; Peña
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||
<bibRefCitation id="EFBE4B1BFF8BA74D3C780336FB0F7349" author="A CANTERO, A. L. & VERVOORT, W." box="[1034,1269,1334,1356]" pageId="31" pageNumber="835" pagination="33 - 40" refId="ref25549" refString="PEN ͠ A CANTERO, A. L. and VERVOORT, W., 1998, On two new species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa) from Bransfield Strait (Antarctica), Polar Biology, 20, 33 - 40." type="journal article" year="1998">Cantero and Vervoort,</bibRefCitation>
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||
</paragraph>
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||
<paragraph id="8B9036EAFF8BA74D39130352FCB5736D" blockId="31.[313,1269,1273,1384]" box="[353,847,1361,1384]" pageId="31" pageNumber="835">
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1998: 36; Peña
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<bibRefCitation id="EFBE4B1BFF8BA74D398D0352FCB1736D" author="A CANTERO, A. L. & MARQUES, A. C." box="[511,843,1361,1384]" pageId="31" pageNumber="835" pagination="83 - 93" refId="ref25335" refString="PEN ͠ A CANTERO, A. L. and MARQUES, A. C., 1999, Phylogenetic analysis of the Antarctic genus Oswaldella Stechow, 1919 (Hydrozoa, Leptomedusae, Kirchenpaueriidae), Contributions to Zoology, 68, 83 - 93." type="journal article" year="1999">Cantero and Marques, 1999: 85</bibRefCitation>
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.
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</paragraph>
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||
<paragraph id="8B9036EAFF8BA74D3913038CFC3A7000" blockId="31.[313,1269,1419,1736]" pageId="31" pageNumber="835">
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<emphasis id="B95BEAF8FF8BA74D3913038CFDC973A1" box="[353,563,1420,1444]" italics="true" pageId="31" pageNumber="835">Material examined</emphasis>
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.
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<emphasis id="B95BEAF8FF8BA74D3A30038CFD7773A1" box="[578,653,1419,1444]" italics="true" pageId="31" pageNumber="835">11/958</emphasis>
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, numerous stems up to
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<quantity id="4CD79B0FFF8BA74D3BEF038CFC1273A6" box="[925,1000,1420,1444]" metricMagnitude="-2" metricUnit="m" metricValue="2.4" pageId="31" pageNumber="835" unit="mm" value="24.0">24 mm</quantity>
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high (USNM 1003330; RMNH-Coel. 30215; MNCN 2.03
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<emphasis id="B95BEAF8FF8BA74D3ABE03ABFD2F73C1" box="[716,725,1451,1476]" italics="true" pageId="31" pageNumber="835">/</emphasis>
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235);
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<emphasis id="B95BEAF8FF8BA74D3B6903ACFCA373C1" box="[795,857,1451,1476]" italics="true" pageId="31" pageNumber="835">6/339</emphasis>
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, two stem fragments up to
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<quantity id="4CD79B0FFF8BA74D3CDB03ACFB0E73C1" box="[1193,1268,1452,1476]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="31" pageNumber="835" unit="mm" value="20.0">20 mm</quantity>
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long (USNM 1003331);
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<emphasis id="B95BEAF8FF8BA74D3A1E03CDFD5173E0" box="[620,683,1483,1509]" italics="true" pageId="31" pageNumber="835">6/340</emphasis>
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, several stems a few millimetres high (USNM 1003332);
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<emphasis id="B95BEAF8FF8BA74D39C003EDFE0A7000" box="[434,496,1516,1541]" italics="true" pageId="31" pageNumber="835">6/342</emphasis>
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, two incipient stems (USNM 1003333).
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</paragraph>
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||
<paragraph id="8B9036EAFF8BA7733913000EFE8E76E8" blockId="31.[313,1269,1419,1736]" lastBlockId="33.[313,1269,181,1473]" lastPageId="33" lastPageNumber="837" pageId="31" pageNumber="835">
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||
<emphasis id="B95BEAF8FF8BA74D3913000EFE1A7020" box="[353,480,1550,1573]" italics="true" pageId="31" pageNumber="835">Description</emphasis>
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. Stem monosiphonic, either branched or unbranched. Hydrocauli provided with alternately arranged apophyses, forming two longitudinal series, sometimes arranged in two planes meeting at an obtuse angle (up to 90
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<emphasis id="B95BEAF8FF8BA74D3C23004EFBA17063" bold="true" box="[1105,1115,1614,1638]" pageId="31" pageNumber="835">°</emphasis>
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) (
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<figureCitation id="13142A6FFF8BA74D3C0A004EFEB67082" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="31" pageNumber="835">figure 10B, C</figureCitation>
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). Apophyses directed upwards at an angle of
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<emphasis id="B95BEAF8FF8BA74D3B120070FC837082" box="[864,889,1648,1671]" italics="true" pageId="31" pageNumber="835">ca</emphasis>
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45
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<emphasis id="B95BEAF8FF8BA74D3BEE006FFC5C7082" bold="true" box="[924,934,1647,1671]" pageId="31" pageNumber="835">°</emphasis>
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with long axis of stem. Each apophysis provided with an axillary nematophore emerging through a simple perisarc hole and a second nematophore emerging through a ‘mamelon’ situated on one side of the apophysis (
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<figureCitation id="13142A6FFFB5A7733A7B06B5FD9476C8" box="[521,622,181,205]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10</figureCitation>
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B–D). Stem divided into internodes with one apophysis each.
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</paragraph>
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<caption id="DF506662FFB4A772394B03FFFDB170B0" pageId="32" pageNumber="836" startId="32.[313,329,1535,1556]" targetBox="[9,1266,183,1503]" targetPageId="32">
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<paragraph id="8B9036EAFFB4A772394B03FFFDB170B0" blockId="32.[313,1268,1535,1717]" pageId="32" pageNumber="836">
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FIG. 10.
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<taxonomicName id="4C2F4D69FFB4A77239D303FFFCC17011" authority="El Beshbeeshy, 1991" authorityName="El Beshbeeshy" authorityYear="1991" box="[417,827,1535,1557]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="32" pageNumber="836" phylum="Cnidaria" rank="species" species="herwigi">
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<emphasis id="B95BEAF8FFB4A77239D303FFFDA47011" box="[417,606,1535,1556]" italics="true" pageId="32" pageNumber="836">Oswaldella herwigi</emphasis>
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||
<bibRefCitation id="EFBE4B1BFFB4A7723A1403FFFCC17011" author="EL BESHBEESHY, M." box="[614,827,1535,1557]" pageId="32" pageNumber="836" refId="ref24722" refString="EL BESHBEESHY, M., 1991, Systematische, Morphologische und Zoogeographische Untersuchungen an den Thekaten Hydroiden des Patagonischen Schelfs. PhD thesis, University of Hamburg, Germany, 390 pp., 102 figures, 80 tables." type="book" year="1991">El Beshbeeshy, 1991</bibRefCitation>
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||
</taxonomicName>
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||
. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11
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||
<emphasis id="B95BEAF8FFB4A7723B460083FCC6709F" box="[820,828,1667,1690]" italics="true" pageId="32" pageNumber="836">/</emphasis>
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||
958). Scale bars: 1 mm (A), 250
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||
<emphasis id="B95BEAF8FFB4A7723CFE0083FB63709F" box="[1164,1177,1667,1690]" italics="true" pageId="32" pageNumber="836">M</emphasis>
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||
m (B, C, E–G), 150
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<emphasis id="B95BEAF8FFB4A7723987009EFDF870B0" box="[501,514,1694,1717]" italics="true" pageId="32" pageNumber="836">M</emphasis>
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m (D).
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</paragraph>
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</caption>
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<paragraph id="8B9036EAFFB5A773391306F6FC9A778A" blockId="33.[313,1269,181,1473]" pageId="33" pageNumber="837">
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Cauline apophyses supporting hydrocladia separated by a distinct node (
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<figureCitation id="13142A6FFFB5A77339320716FE19772B" box="[320,483,278,302]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10B, C</figureCitation>
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||
). Second-order hydrocladia present (
|
||
<figureCitation id="13142A6FFFB5A7733BCE0716FBC3772B" box="[956,1081,278,302]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10A</figureCitation>
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); in one stem with incipient third-order hydrocladia. Hydrocladial arrangement asymmetrical (
|
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<figureCitation id="13142A6FFFB5A77339320757FE47776A" box="[320,445,343,367]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10A</figureCitation>
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); first-order hydrocladia giving rise to several secondary hydrocladia. Top of distal hydrocladial internodes truncated.
|
||
</paragraph>
|
||
<paragraph id="8B9036EAFFB5A77339130798FC717457" blockId="33.[313,1269,181,1473]" pageId="33" pageNumber="837">
|
||
Hydrocladia heteromerously segmented (
|
||
<figureCitation id="13142A6FFFB5A7733B370798FC5777B5" box="[837,941,408,432]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10</figureCitation>
|
||
), with alternately arranged athecate and hydrothecate internodes. Hydrothecate internodes with one hydrotheca and two nematophores (
|
||
<figureCitation id="13142A6FFFB5A7733A2D07D9FD3877F4" box="[607,706,473,497]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10</figureCitation>
|
||
E–G): one mesial inferior emerging through a perisarc hole on a slight elevation of internode and provided with a scale-shaped nematotheca, and a mesial superior nematophore emerging through a perisarc hole situated behind the free adcauline hydrothecal wall.
|
||
</paragraph>
|
||
<paragraph id="8B9036EAFFB5A7733913045BFB0F74D1" blockId="33.[313,1269,181,1473]" pageId="33" pageNumber="837">
|
||
Hydrothecae usually situated on distal half of hydrothecate internodes; sometimes in the middle (
|
||
<figureCitation id="13142A6FFFB5A7733A1B047BFCA97491" box="[617,851,635,660]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10A, C, E, G</figureCitation>
|
||
). Hydrotheca shallow, rim circular and slightly laterally depressed, tilted downwards. Considerable part of adcauline wall of hydrotheca free; abcauline wall at an angle of
|
||
<emphasis id="B95BEAF8FFB5A7733BFF04BDFC5C74D1" box="[909,934,701,724]" italics="true" pageId="33" pageNumber="837">ca</emphasis>
|
||
60
|
||
<emphasis id="B95BEAF8FFB5A7733BB404BDFC2A74D0" bold="true" box="[966,976,701,725]" pageId="33" pageNumber="837">°</emphasis>
|
||
with internodal long axis.
|
||
</paragraph>
|
||
<paragraph id="8B9036EAFFB5A773391304DDFDBE74F0" blockId="33.[313,1269,181,1473]" box="[353,580,733,757]" pageId="33" pageNumber="837">Gonothecae absent.</paragraph>
|
||
<paragraph id="8B9036EAFFB5A773391304FEFC3D723E" blockId="33.[313,1269,181,1473]" pageId="33" pageNumber="837">
|
||
<emphasis id="B95BEAF8FFB5A773391304FEFE3E7513" box="[353,452,766,790]" italics="true" pageId="33" pageNumber="837">Remarks</emphasis>
|
||
.
|
||
<taxonomicName id="4C2F4D69FFB5A77339AB04FEFD4B7513" authorityName="El Beshbeeshy" authorityYear="1991" box="[473,689,766,790]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="species" species="herwigi">
|
||
<emphasis id="B95BEAF8FFB5A77339AB04FEFD4B7513" box="[473,689,766,790]" italics="true" pageId="33" pageNumber="837">Oswaldella herwigi</emphasis>
|
||
</taxonomicName>
|
||
is the only species of the genus found outside Antarctic waters (cf.
|
||
<figureCitation id="13142A6FFFB5A7733A5F051EFD6E7533" box="[557,660,798,822]" captionStart="FIG" captionStartId="53.[313,329,1173,1194]" captionTargetBox="[316,1266,180,1143]" captionTargetId="figure-8@53.[313,1269,177,1146]" captionTargetPageId="53" captionText="FIG. 19. Geographical distribution of the known Antarctic and sub-Antarctic species of Oswaldella Stechow, 1919. (a) O. antarctica; (b) O. bifurca; (c) O. billardi; (d) O. blanconae; (e) O. crassa; (f) O. curiosa; (g) O. delicata; (h) O. elongata; (i) O. encarnae; (j) O. erratum; (k) O. frigida sp. nov.; (l) O. garciacarrascosai; (m) O. gracilis; (n) O. grandis; (o) O. herwigi; (p) O. incognita; (q) O. medeae sp. nov.; (r) O. monomammillata sp. nov.; (s) O. obscura; (t) O. rigida; (u) O. shetlandica; (v) O. stepanjantsae; (w) O. terranovae; (x) O. tottoni; (y) O. vervoorti." pageId="33" pageNumber="837">figure 19</figureCitation>
|
||
). It also has peculiarities in which it differs from the remaining species of
|
||
<taxonomicName id="4C2F4D69FFB5A7733A5A053FFD5B7552" authorityName="Stechow" authorityYear="1919" box="[552,673,831,855]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="genus">
|
||
<emphasis id="B95BEAF8FFB5A7733A5A053FFD5B7552" box="[552,673,831,855]" italics="true" pageId="33" pageNumber="837">Oswaldella</emphasis>
|
||
</taxonomicName>
|
||
. For example, the ‘mamelon’ present on the cauline apophyses of this species has a structure different from that of the other species, as it is provided with a conical distal structure (
|
||
<figureCitation id="13142A6FFFB5A7733B180580FC19759D" box="[874,995,896,920]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10D</figureCitation>
|
||
) that is absent in the remaining species. Moreover, the naked nematophores, i.e. the mesial superior nematophore situated behind free adcauline hydrothecal wall and the axillary nematophore of the cauline apophyses appear to be sheathed (
|
||
<figureCitation id="13142A6FFFB5A7733C6905E1FB6E75FF" box="[1051,1172,993,1018]" captionStart="FIG" captionStartId="32.[313,329,1535,1556]" captionTargetBox="[9,1266,183,1503]" captionTargetId="figure-11@32.[313,1269,179,1509]" captionTargetPageId="32" captionText="FIG. 10. Oswaldella herwigi El Beshbeeshy, 1991. (A) Hydrocladial branching and arrangement of hydrothecae; (B, C) cauline internodes and apophyses with axillary nematophore and ‘mamelon’ as well as first hydrocladial internodes; (D) detail of cauline apophysis with axillary nematophore and ‘mamelon’; (E–G) athecate and thecate hydrocladial internodes with hydrotheca, mesial superior nematophore and mesial inferior nematotheca (all drawings, Stn 11/958). Scale bars: 1 mm (A), 250 Mm (B, C, E–G), 150 Mm (D)." pageId="33" pageNumber="837">figure 10C</figureCitation>
|
||
, E–G).
|
||
<taxonomicName id="4C2F4D69FFB5A773394B0202FDF0721F" authorityName="El Beshbeeshy" authorityYear="1991" box="[313,522,1026,1050]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="species" species="herwigi">
|
||
<emphasis id="B95BEAF8FFB5A773394B0202FDF0721F" box="[313,522,1026,1050]" italics="true" pageId="33" pageNumber="837">Oswaldella herwigi</emphasis>
|
||
</taxonomicName>
|
||
is also the only species with heteromerously divided hydrocladia, having alternating hydrothecate and athecate internodes.
|
||
</paragraph>
|
||
<paragraph id="8B9036EAFFB5A77339130244FE1872FB" blockId="33.[313,1269,181,1473]" pageId="33" pageNumber="837">
|
||
In two stems from Stn 6
|
||
<emphasis id="B95BEAF8FFB5A7733AF10242FD76725E" box="[643,652,1090,1115]" italics="true" pageId="33" pageNumber="837">/</emphasis>
|
||
340 the cauline apophysis of the first stem internode has two axillary perisarc holes. In the second internode, those axillary holes are partly merged. In the remaining cauline apophyses there is a single axillary perisarc hole. This phenomenon is similar to that observed in other species of the genus (e.g.
|
||
<taxonomicName id="4C2F4D69FFB5A773390A02C6FE1472D8" box="[376,494,1221,1245]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="species" species="bifurca">
|
||
<emphasis id="B95BEAF8FFB5A773390A02C6FE1472D8" box="[376,494,1221,1245]" italics="true" pageId="33" pageNumber="837">O. bifurca</emphasis>
|
||
</taxonomicName>
|
||
) and points to a certain inconsistency in the number of axillary nematophores.
|
||
</paragraph>
|
||
<paragraph id="8B9036EAFFB5A77339130306FE0773C4" blockId="33.[313,1269,181,1473]" pageId="33" pageNumber="837">
|
||
<emphasis id="B95BEAF8FFB5A77339130306FD8A731B" box="[353,624,1286,1310]" italics="true" pageId="33" pageNumber="837">Ecology and distribution</emphasis>
|
||
.
|
||
<taxonomicName id="4C2F4D69FFB5A7733AF20306FCAB731B" authorityName="El Beshbeeshy" authorityYear="1991" box="[640,849,1286,1310]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="species" species="herwigi">
|
||
<emphasis id="B95BEAF8FFB5A7733AF20306FCAB731B" box="[640,849,1286,1310]" italics="true" pageId="33" pageNumber="837">Oswaldella herwigi</emphasis>
|
||
</taxonomicName>
|
||
is endemic to the Patagonian region (
|
||
<bibRefCitation id="EFBE4B1BFFB5A77339370327FDCD733A" author="EL BESHBEESHY, M." box="[325,567,1319,1343]" pageId="33" pageNumber="837" refId="ref24722" refString="EL BESHBEESHY, M., 1991, Systematische, Morphologische und Zoogeographische Untersuchungen an den Thekaten Hydroiden des Patagonischen Schelfs. PhD thesis, University of Hamburg, Germany, 390 pp., 102 figures, 80 tables." type="book" year="1991">El Beshbeeshy, 1991</bibRefCitation>
|
||
), having been collected at depths from
|
||
<quantity id="4CD79B0FFFB5A7733C7B0327FB65733A" box="[1033,1183,1319,1343]" metricMagnitude="2" metricUnit="m" metricValue="5.45" metricValueMax="10.0" metricValueMin="0.9" pageId="33" pageNumber="837" unit="m" value="545.0" valueMax="1000.0" valueMin="90.0">90 to 1000 m</quantity>
|
||
on the Patagonian shelf and slope (
|
||
<bibRefCitation id="EFBE4B1BFFB5A7733A0D0348FC977365" author="EL BESHBEESHY, M." box="[639,877,1352,1376]" pageId="33" pageNumber="837" refId="ref24722" refString="EL BESHBEESHY, M., 1991, Systematische, Morphologische und Zoogeographische Untersuchungen an den Thekaten Hydroiden des Patagonischen Schelfs. PhD thesis, University of Hamburg, Germany, 390 pp., 102 figures, 80 tables." type="book" year="1991">El Beshbeeshy, 1991</bibRefCitation>
|
||
). Our material comes from depths of
|
||
<quantity id="4CD79B0FFFB5A773392F0368FE137385" box="[349,489,1383,1408]" metricMagnitude="2" metricUnit="m" metricValue="3.15" metricValueMax="5.86" metricValueMin="0.44" pageId="33" pageNumber="837" unit="m" value="315.0" valueMax="586.0" valueMin="44.0">44 to 586 m</quantity>
|
||
off the
|
||
<collectingCountry id="F338767AFFB5A7733A220368FCE87385" box="[592,786,1384,1408]" name="Falkland Islands" pageId="33" pageNumber="837">Falkland Islands</collectingCountry>
|
||
and the western mouth of the Strait of Magellan. We found it growing as an epibiont on hydroids (
|
||
<taxonomicName id="4C2F4D69FFB5A7733C610389FB6A73A5" authorityName="Lamouroux" authorityYear="1812" box="[1043,1168,1417,1440]" class="Hydrozoa" family="Plumulariidae" genus="Nemertesia" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="genus">
|
||
<emphasis id="B95BEAF8FFB5A7733C610389FB6A73A5" box="[1043,1168,1417,1440]" italics="true" pageId="33" pageNumber="837">Nemertesia</emphasis>
|
||
</taxonomicName>
|
||
sp. and
|
||
<taxonomicName id="4C2F4D69FFB5A773394B03A9FE0B73C4" box="[313,497,1449,1473]" class="Hydrozoa" family="Aglaopheniidae" kingdom="Animalia" order="Leptothecata" pageId="33" pageNumber="837" phylum="Cnidaria" rank="family">Aglaopheniidae</taxonomicName>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |