treatments-xml/data/3D/10/87/3D10878AFF92B44210905FB1FEE43BE5.xml
2024-06-21 12:34:09 +02:00

467 lines
59 KiB
XML
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<document id="DA1716BE18A6ED6BDAD6D68F35156DDF" ID-DOI="10.11646/zootaxa.3972.3.4" ID-GBIF-Dataset="37cf6488-091a-40ce-ae0a-2e251f6254ea" ID-ISSN="1175-5326" ID-Zenodo-Dep="236731" ID-ZooBank="C1698260-269E-4D15-A562-D8FF46751F7F" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461188715890" checkinUser="plazi" docAuthor="Peña Cantero, Álvaro L." docDate="2015" docId="3D10878AFF92B44210905FB1FEE43BE5" docLanguage="en" docName="zt03972p392.pdf" docOrigin="Zootaxa 3972 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Rhizorhagium antarcticum Hickson &amp; Gravely 1907" docType="treatment" docVersion="11" lastPageNumber="378" masterDocId="C129FFF2FF9AB44B10075D3EFFD13F0D" masterDocTitle="Review of some little-known benthic hydroids (Cnidaria, Hydrozoa) from the Southern Ocean" masterLastPageNumber="392" masterPageNumber="369" pageNumber="377" updateTime="1698600324260" updateUser="plazi">
<mods:mods id="01D4480E4B80BFCA9FD38B86696C53E4" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="04E10FA753A9A913F03476EB83CCB1BA">
<mods:title id="89E33AD6F7B5827952B4BD2EF4592733">Review of some little-known benthic hydroids (Cnidaria, Hydrozoa) from the Southern Ocean</mods:title>
</mods:titleInfo>
<mods:name id="951061BA21A0C718782949C8309BD1B7" type="personal">
<mods:role id="6755C05CE45C914F82409816420E8294">
<mods:roleTerm id="EAB715669B654BBF21274E8B68A93449">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="0D14A15BA292F0C591E55320B93552B4">Peña Cantero, Álvaro L.</mods:namePart>
</mods:name>
<mods:typeOfResource id="A5B01B84F19C973C36641E610098522A">text</mods:typeOfResource>
<mods:relatedItem id="E53733D51C1E37D6D788B8877E61C1C6" type="host">
<mods:titleInfo id="DB23038BD3F80A71A0C8FA693A387D8C">
<mods:title id="4EA5A054116097198C2B6242D109E52F">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="048AE02271109AB144950A9198060482">
<mods:date id="8EB43E172E4F2B6A7BCF1790DCD56AF6">2015</mods:date>
<mods:detail id="ED23BB1B5BCD1D8750BB3E0CDB8B07AD" type="volume">
<mods:number id="9BAF8716A3908512A987DC9DBC45BFF3">3972</mods:number>
</mods:detail>
<mods:detail id="22D639D0E368558354EB7E738B859E36" type="issue">
<mods:number id="E55C64F870A38C795CBA8557A9A267C9">3</mods:number>
</mods:detail>
<mods:extent id="AF9152E1AB01090A334E26839EEA2006" unit="page">
<mods:start id="8073D7DFCC1D2D514C9FDC639B4F7FA0">369</mods:start>
<mods:end id="2017365F8DC4AC284303ED8629BCAF3E">392</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="5A00382656FB714FDEEFAF31C864A4A1">journal article</mods:classification>
<mods:identifier id="1D46C94F1CA56666383FB85F28B059FB" type="DOI">10.11646/zootaxa.3972.3.4</mods:identifier>
<mods:identifier id="57C993F50809F367AEC35039D29EB73A" type="GBIF-Dataset">37cf6488-091a-40ce-ae0a-2e251f6254ea</mods:identifier>
<mods:identifier id="1CCA559B42B07DAAA7300133C8AE6D5D" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="8A99E9C7FC58D484D0AB605F92AF3428" type="Zenodo-Dep">236731</mods:identifier>
<mods:identifier id="EE4A4F62DCEF6F133688C6BDC71FD2CA" type="ZooBank">C1698260-269E-4D15-A562-D8FF46751F7F</mods:identifier>
</mods:mods>
<treatment id="3D10878AFF92B44210905FB1FEE43BE5" ID-DOI="http://doi.org/10.5281/zenodo.5671794" ID-GBIF-Taxon="119629008" ID-Zenodo-Dep="5671794" LSID="urn:lsid:plazi:treatment:3D10878AFF92B44210905FB1FEE43BE5" httpUri="http://treatment.plazi.org/id/3D10878AFF92B44210905FB1FEE43BE5" lastPageId="9" lastPageNumber="378" pageId="8" pageNumber="377">
<subSubSection id="FDA36517FF92B44310905FB1FE463DC6" pageId="8" pageNumber="377" type="nomenclature">
<paragraph id="B506369CFF92B44310905FB1FCE23DA7" blockId="8.[151,819,655,715]" box="[151,819,655,682]" pageId="8" pageNumber="377">
<heading id="EE4E81F0FF92B44310905FB1FCE23DA7" bold="true" box="[151,819,655,682]" fontSize="11" level="1" pageId="8" pageNumber="377" reason="1">
<taxonomicName id="72B94D1FFF92B44310905FB1FCE23DA7" ID-CoL="4SDHS" authority="Hickson &amp; Gravely, 1907" authorityName="Hickson &amp; Gravely" authorityYear="1907" box="[151,819,655,682]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="87CDEA8EFF92B44310905FB1FCE23DA7" bold="true" box="[151,819,655,682]" pageId="8" pageNumber="377">
<emphasis id="87CDEA8EFF92B44310905FB1FE313DA4" bold="true" box="[151,480,655,681]" italics="true" pageId="8" pageNumber="377">Rhizorhagium antarcticum</emphasis>
(
<bibRefCitation id="D1284B6DFF92B44311E95FAEFCFA3DA7" author="Hickson" box="[494,811,656,682]" pageId="8" pageNumber="377" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely, 1907</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="B506369CFF92B44310905F8CFE463DC6" blockId="8.[151,819,655,715]" box="[151,407,690,715]" pageId="8" pageNumber="377">
(
<figureCitation id="2D822A19FF92B44310985F8CFF333DC6" box="[159,226,690,715]" captionStart="FIGURE 1" captionStartId="1.[151,250,1858,1880]" captionTargetBox="[160,1422,871,1820]" captionTargetId="figure@1.[151,1436,860,1834]" captionTargetPageId="1" captionText="FIGURE 1. Bimeria corynopsis Vanhöffen, 1910: A, a few stems growing on Staurotheca.? Koellikerina belgicae (Vanhöffen, 1910): B, colony with several stems. Rhizorhagium antarcticum (Hickson &amp; Gravely, 1907): C D, several stems and gonophores. Scale bar: 2 mm (A B), 1 mm (C D)." httpUri="https://zenodo.org/record/236732/files/figure.png" pageId="8" pageNumber="377">Figs 1</figureCitation>
C, D, 2E, F, 3F)
</paragraph>
</subSubSection>
<subSubSection id="FDA36517FF92B44310905FC5FDDF3B0B" pageId="8" pageNumber="377" type="reference_group">
<paragraph id="B506369CFF92B44310905FC5FC283C22" blockId="8.[151,1436,762,1030]" pageId="8" pageNumber="377">
<treatmentCitationGroup id="95A911B2FF92B44310905FC5FC283C22" pageId="8" pageNumber="377">
<taxonomicName id="72B94D1FFF92B44310905FC5FD623C1D" ID-CoL="77627" authority="Hickson &amp; Gravely, 1907: 4" authorityName="Hickson &amp; Gravely" authorityPageNumber="4" authorityYear="1907" box="[151,691,762,784]" class="Hydrozoa" family="Bougainvilliidae" genus="Perigonimus" higherTaxonomySource="CoL" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="antarcticus">
<emphasis id="87CDEA8EFF92B44310905FC5FE5E3C1D" box="[151,399,763,784]" italics="true" pageId="8" pageNumber="377">Perigonimus antarcticus</emphasis>
<treatmentCitation id="3418108DFF92B44311915FC4FD623C1D" author="Hickson" box="[406,691,762,784]" page="4" pageId="8" pageNumber="377" year="1907">
<bibRefCitation id="D1284B6DFF92B44311915FC4FD4C3C1D" author="Hickson" box="[406,669,762,784]" pageId="8" pageNumber="377" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely, 1907</bibRefCitation>
: 4
</treatmentCitation>
</taxonomicName>
6, pl. 1 figs 13, pl. 4 fig. 32;
<treatmentCitation id="3418108DFF92B44313EA5FC5FBAB3C1D" author="Rees" box="[1005,1146,762,784]" page="7" pageId="8" pageNumber="377" year="1938">
<bibRefCitation id="D1284B6DFF92B44313EA5FC5FBB03C1D" author="Rees" box="[1005,1121,762,784]" pageId="8" pageNumber="377" refString="Rees, W. J. (1938) Observations on British and Norwegian hydroids and their medusae. Journal of the Marine Biological Association of the United Kingdom, 23, 1 - 42. http: // dx. doi. org / 10.1017 / S 0025315400053923" type="journal article" year="1938">Rees, 1938</bibRefCitation>
: 7
</treatmentCitation>
; 1956: 338, 347;
<treatmentCitation id="3418108DFF92B443152C5FC5FE723C22" author="Naumov" page="33" pageId="8" pageNumber="377" year="1972">
<bibRefCitation id="D1284B6DFF92B443152C5FC5FEAF3C22" author="Naumov" pageId="8" pageNumber="377" refString="Naumov, D. V. &amp; Stepanjants, S. D. (1972) Marine invertebrates from Adelie Land collected by the XIIth and XVth French Antarctic Expeditions. 3. Hydroida. Tethys Supplement, 4, 25 - 60." type="journal article" year="1972">Naumov &amp; Stepanjants, 1972</bibRefCitation>
: 33
</treatmentCitation>
, 35; Stepanjants, 1972: 5657, fig. 1; 1979: 10, pl. 1 fig. 1.
</treatmentCitationGroup>
</paragraph>
<paragraph id="B506369CFF92B44310905E06FD743C43" blockId="8.[151,1436,762,1030]" box="[151,677,824,846]" pageId="8" pageNumber="377">
<treatmentCitationGroup id="95A911B2FF92B44310905E06FD743C43" box="[151,677,824,846]" pageId="8" pageNumber="377">
<taxonomicName id="72B94D1FFF92B44310905E06FEB63C43" box="[151,359,824,846]" class="Magnoliopsida" family="Asteraceae" genus="Atractylis" kingdom="Animalia" order="Asterales" pageId="8" pageNumber="377" phylum="Tracheophyta" rank="species" species="antarctica">
<emphasis id="87CDEA8EFF92B44310905E06FEB63C43" box="[151,359,824,846]" italics="true" pageId="8" pageNumber="377">Atractylis antarctica</emphasis>
</taxonomicName>
<treatmentCitation id="3418108DFF92B44311875E06FD8C3C43" author="Vanhoffen" box="[384,605,824,846]" page="283" pageId="8" pageNumber="377" year="1910">
<bibRefCitation id="D1284B6DFF92B44311875E06FDFD3C43" author="Vanhoffen" box="[384,556,824,846]" pageId="8" pageNumber="377" refString="Vanhoffen, E. (1910) Die Hydroiden der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition 1901 - 1903, 11 (Zoology 3), 269 - 340." type="journal article" year="1910">Vanhöffen, 1910</bibRefCitation>
: 283
</treatmentCitation>
, fig. 8;
</treatmentCitationGroup>
</paragraph>
<paragraph id="B506369CFF92B44310905E68FDB53C61" blockId="8.[151,1436,762,1030]" box="[151,612,854,877]" pageId="8" pageNumber="377">
<treatmentCitationGroup id="95A911B2FF92B44310905E68FDB53C61" box="[151,612,854,877]" pageId="8" pageNumber="377">
<taxonomicName id="72B94D1FFF92B44310905E68FEA03C60" box="[151,369,854,877]" class="Magnoliopsida" family="Asteraceae" genus="Atractylis" kingdom="Animalia" order="Asterales" pageId="8" pageNumber="377" phylum="Tracheophyta" rank="species" species="antarcticus">
<emphasis id="87CDEA8EFF92B44310905E68FEA03C60" box="[151,369,854,877]" italics="true" pageId="8" pageNumber="377">Atractylis antarcticus</emphasis>
</taxonomicName>
<treatmentCitation id="3418108DFF92B443118C5E68FDEB3C61" author="Ritchie" box="[395,570,854,876]" page="10" pageId="8" pageNumber="377" year="1913">
<bibRefCitation id="D1284B6DFF92B443118C5E68FDC43C61" author="Ritchie" box="[395,533,854,876]" pageId="8" pageNumber="377" refString="Ritchie, J. (1913) The hydroid zoophytes collected by the British Antarctic Expedition of Sir Ernest Shackleton, 1908. Proceedings of the Royal Society of Edinburgh, 33 (1), 9 - 34." type="journal article" year="1913">Ritchie, 1913</bibRefCitation>
: 10
</treatmentCitation>
, 11.
</treatmentCitationGroup>
</paragraph>
<paragraph id="B506369CFF92B44310905E4BFD4C3C86" blockId="8.[151,1436,762,1030]" box="[151,669,885,907]" pageId="8" pageNumber="377">
<treatmentCitationGroup id="95A911B2FF92B44310905E4BFD4C3C86" box="[151,669,885,907]" pageId="8" pageNumber="377">
<taxonomicName id="72B94D1FFF92B44310905E4BFEB33C86" box="[151,354,885,907]" class="Hydrozoa" family="Bougainvilliidae" genus="Gravelya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="antarctica">
<emphasis id="87CDEA8EFF92B44310905E4BFEB33C86" box="[151,354,885,907]" italics="true" pageId="8" pageNumber="377">Gravelya antarctica</emphasis>
</taxonomicName>
<treatmentCitation id="3418108DFF92B443117B5E48FDE33C86" author="Totton" box="[380,562,885,907]" page="139" pageId="8" pageNumber="377" year="1930">
<bibRefCitation id="D1284B6DFF92B443117B5E48FDD03C86" author="Totton" box="[380,513,885,907]" pageId="8" pageNumber="377" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton, 1930</bibRefCitation>
: 139
</treatmentCitation>
, fig. 1a, b.
</treatmentCitationGroup>
</paragraph>
<paragraph id="B506369CFF92B44310905EAAFCDA3CA7" blockId="8.[151,1436,762,1030]" box="[151,779,916,938]" pageId="8" pageNumber="377">
<treatmentCitationGroup id="95A911B2FF92B44310905EAAFCDA3CA7" box="[151,779,916,938]" pageId="8" pageNumber="377">
?
<taxonomicName id="72B94D1FFF92B44310AF5EAAFE573CA7" box="[168,390,916,938]" class="Hydrozoa" family="Bougainvilliidae" genus="Gravelya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="87CDEA8EFF92B44310AF5EAAFE573CA7" box="[168,390,916,938]" italics="true" pageId="8" pageNumber="377">Gravelya antarcticum</emphasis>
</taxonomicName>
<treatmentCitation id="3418108DFF92B44311A75EAAFDBB3CA7" author="Schuchert" box="[416,618,916,938]" page="41" pageId="8" pageNumber="377" year="1996">
<bibRefCitation id="D1284B6DFF92B44311A75EAAFD993CA7" author="Schuchert" box="[416,584,916,938]" pageId="8" pageNumber="377" refString="Schuchert, P. (1996) The marine fauna of New Zealand: athecate hydroids and their medusa (Cnidaria: Hydrozoa). New Zealand Oceanographic Institute Memoir, 106, 1 - 159." type="journal article" year="1996">Schuchert, 1996</bibRefCitation>
: 41
</treatmentCitation>
42, fig. 21ad.
</treatmentCitationGroup>
</paragraph>
<paragraph id="B506369CFF92B44310905E8CFDDF3B0B" blockId="8.[151,1436,762,1030]" pageId="8" pageNumber="377">
<treatmentCitationGroup id="95A911B2FF92B44310905E8CFDDF3B0B" pageId="8" pageNumber="377">
<taxonomicName id="72B94D1FFF92B44310905E8CFE743CC5" ID-CoL="4SDHS" box="[151,421,946,968]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="87CDEA8EFF92B44310905E8CFE743CC5" box="[151,421,946,968]" italics="true" pageId="8" pageNumber="377">Rhizorhagium antarcticum</emphasis>
</taxonomicName>
<treatmentCitation id="3418108DFF92B44311B85E8CFDAD3CC5" author="Stechow" box="[447,636,946,968]" page="21" pageId="8" pageNumber="377" year="1919">
<bibRefCitation id="D1284B6DFF92B44311B85E8CFD873CC5" author="Stechow" box="[447,598,946,968]" pageId="8" pageNumber="377" refString="Stechow, E. (1919) Zur Kenntnis der Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete, nebst Angaben uber einige Kirchenpauer'sche Typen von Plumulariden. Zoologische Jahrbucher, Abteilung fur Systematik, 42 (1), 1 - 172." type="journal article" year="1919">Stechow, 1919</bibRefCitation>
: 21
</treatmentCitation>
;
<treatmentCitation id="3418108DFF92B44312815E8DFCFA3CC5" author="Rees" box="[646,811,946,968]" page="338" pageId="8" pageNumber="377" year="1956">
<bibRefCitation id="D1284B6DFF92B44312815E8DFD283CC5" author="Rees" box="[646,761,946,968]" pageId="8" pageNumber="377" refString="Rees, W. J. (1956) On three northern species of Hydractinia. Bulletin of the British Museum (Natural History), 3, 351 - 362." type="journal article" year="1956">Rees, 1956</bibRefCitation>
: 338
</treatmentCitation>
, 347;
<treatmentCitation id="3418108DFF92B443136E5E8DFB5A3CC5" author="Rees" box="[873,1163,946,968]" page="55" pageId="8" pageNumber="377" year="1965">
<bibRefCitation id="D1284B6DFF92B443136E5E8DFBB43CC5" author="Rees" box="[873,1125,946,968]" pageId="8" pageNumber="377" refString="Rees, W. J. &amp; Thursfield, S. (1965) The hydroid collection of James Ritchie. Proceedings of the Royal Society of Edinburgh, Section B, 69 (1 - 2), 34 - 220. http: // dx. doi. org / 10.1017 / s 0080455 x 00010122" type="journal article" year="1965">Rees &amp; Thursfield, 1965</bibRefCitation>
: 55
</treatmentCitation>
;
<treatmentCitation id="3418108DFF92B44314925E8CFA843CC5" author="Millard" box="[1173,1365,946,968]" page="401" pageId="8" pageNumber="377" year="1971">
<bibRefCitation id="D1284B6DFF92B44314925E8CFAF53CC5" author="Millard" box="[1173,1316,946,968]" pageId="8" pageNumber="377" refString="Millard, N. A. H. (1971) Hydrozoa. In: Van Zinderen Bakker, E. M. Winterbottom, Sr. J. M. &amp; Dyer, R. A. (Eds.), Marion and Prince Edward Islands. A. A. Balkema, Cape Town, pp. 396 - 408, figs. 1 - 7." type="book chapter" year="1971">Millard, 1971</bibRefCitation>
: 401
</treatmentCitation>
, fig. 3;
<treatmentCitation id="3418108DFF92B44310C05EEFFE3E3CEA" author="Branch" box="[199,495,977,999]" page="8" pageId="8" pageNumber="377" year="1993">
<bibRefCitation id="D1284B6DFF92B44310C05EEFFE043CEA" author="Branch" box="[199,469,977,999]" pageId="8" pageNumber="377" refString="Branch, M. L. &amp; Williams, G. C. (1993) The Hydrozoa, Octocorallia and Scleractinia of subantarctic Marion and Prince Edward Islands: illustrated keys to the species and results of the 1982 - 1989 University of Cape Town surveys. South African Journal of Antarctic Research, 23 (1 - 2), 3 - 24." type="journal article" year="1993">Branch &amp; Williams, 1993</bibRefCitation>
: 8
</treatmentCitation>
, fig.;
<treatmentCitation id="3418108DFF92B44312295EECFCE33CEA" author="Pena" box="[558,818,977,999]" page="768" pageId="8" pageNumber="377" year="2004">
<bibRefCitation id="D1284B6DFF92B44312295EECFD2F3CEA" author="Pena" box="[558,766,977,999]" pageId="8" pageNumber="377" refString="Pena Cantero, A. L. (2004) How rich is the deep-sea Antarctic benthic hydroid fauna? Polar Biology, 27, 767 - 774. http: // dx. doi. org / 10.1007 / s 00300 - 004 - 0654 - 9" type="journal article" year="2004">Peña Cantero, 2004</bibRefCitation>
: 768
</treatmentCitation>
;
<treatmentCitation id="3418108DFF92B44313395EEFFB9C3CEA" author="Bouillon" box="[830,1101,977,999]" page="137" pageId="8" pageNumber="377" year="2006">
<bibRefCitation id="D1284B6DFF92B44313395EEFFBC83CEA" author="Bouillon" box="[830,1049,977,999]" pageId="8" pageNumber="377" refString="Bouillon, J., Gravili, C., Pages, F., Gili, J. M. &amp; Boero, F. (2006) An introduction to Hydrozoa. Memoires du Museum national d'Histoire naturelle, 194, 1 - 591." type="journal article" year="2006">
Bouillon
<emphasis id="87CDEA8EFF92B44313A75EECFC1F3CEA" box="[928,974,977,999]" italics="true" pageId="8" pageNumber="377">et al</emphasis>
., 2006
</bibRefCitation>
: 137
</treatmentCitation>
, fig.
<date id="C107105CFF92B44314825EEFFB783CEA" box="[1157,1193,977,999]" pageId="8" pageNumber="377" value="1979-01">79I</date>
, J;
<treatmentCitation id="3418108DFF92B44314C85EECFEFC3B0B" author="Pena" page="735" pageId="8" pageNumber="377" year="2013">
<bibRefCitation id="D1284B6DFF92B44314C85EECFF2C3B0B" author="Pena" pageId="8" pageNumber="377" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">
Peña Cantero
<emphasis id="87CDEA8EFF92B44315665EECFA5E3CEA" box="[1377,1423,977,999]" italics="true" pageId="8" pageNumber="377">et al</emphasis>
., 2013
</bibRefCitation>
: 735
</treatmentCitation>
736, figs 2cd, 3ab.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="FDA36517FF92B4431090590CFC2D3B63" pageId="8" pageNumber="377" type="materials_examined">
<paragraph id="B506369CFF92B4431090590CFC2D3B63" blockId="8.[151,1437,1074,2035]" pageId="8" pageNumber="377">
<emphasis id="87CDEA8EFF92B4431090590CFE553B46" bold="true" box="[151,388,1074,1099]" pageId="8" pageNumber="377">Material examined.</emphasis>
<emphasis id="87CDEA8EFF92B4431189590AFDD13B46" box="[398,512,1076,1099]" italics="true" pageId="8" pageNumber="377">Discovery</emphasis>
<collectingCountry id="CDAE760CFF92B443120D590CFDA33B46" box="[522,626,1074,1099]" name="Antarctica" pageId="8" pageNumber="377">Antarctic</collectingCountry>
Expedition
<date id="C107105CFF92B4431305590DFCB23B46" box="[770,867,1075,1099]" pageId="8" pageNumber="377" value="1901" valueMax="1904">1901-04</date>
:
<typeStatus id="6A02883EFF92B4431375590DFC7B3B46" box="[882,938,1075,1099]" pageId="8" pageNumber="377">Type</typeStatus>
(NHM 1907.8.20.1), McMurdo Bay (Ross Sea), 120 fms, several stems, with gonophores, on
<taxonomicName id="72B94D1FFF92B44312D95968FC253B62" box="[734,1012,1110,1135]" class="Hydrozoa" family="Haleciidae" genus="Hydrodendron" kingdom="Animalia" order="Leptothecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="arboreum">
<emphasis id="87CDEA8EFF92B44312D95968FC253B62" box="[734,1012,1110,1135]" italics="true" pageId="8" pageNumber="377">Hydrodendron arboreum</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="FDA36517FF92B44310C05944FC6939A2" pageId="8" pageNumber="377" type="description">
<paragraph id="B506369CFF92B44310C05944FD1B3BF2" blockId="8.[151,1437,1074,2035]" pageId="8" pageNumber="377">
<emphasis id="87CDEA8EFF92B44310C05944FE883B9E" bold="true" box="[199,345,1146,1171]" pageId="8" pageNumber="377">Description.</emphasis>
Usually stolonal (
<figureCitation id="2D822A19FF92B44312295944FDA03B9E" box="[558,625,1146,1171]" captionStart="FIGURE 1" captionStartId="1.[151,250,1858,1880]" captionTargetBox="[160,1422,871,1820]" captionTargetId="figure@1.[151,1436,860,1834]" captionTargetPageId="1" captionText="FIGURE 1. Bimeria corynopsis Vanhöffen, 1910: A, a few stems growing on Staurotheca.? Koellikerina belgicae (Vanhöffen, 1910): B, colony with several stems. Rhizorhagium antarcticum (Hickson &amp; Gravely, 1907): C D, several stems and gonophores. Scale bar: 2 mm (A B), 1 mm (C D)." httpUri="https://zenodo.org/record/236732/files/figure.png" pageId="8" pageNumber="377">Fig. 1</figureCitation>
C, D), but stems with up to three polyps present. Stems covered with perisarc (
<figureCitation id="2D822A19FF92B44310F859A0FE953BBA" box="[255,324,1182,1207]" captionStart="FIGURE 1" captionStartId="1.[151,250,1858,1880]" captionTargetBox="[160,1422,871,1820]" captionTargetId="figure@1.[151,1436,860,1834]" captionTargetPageId="1" captionText="FIGURE 1. Bimeria corynopsis Vanhöffen, 1910: A, a few stems growing on Staurotheca.? Koellikerina belgicae (Vanhöffen, 1910): B, colony with several stems. Rhizorhagium antarcticum (Hickson &amp; Gravely, 1907): C D, several stems and gonophores. Scale bar: 2 mm (A B), 1 mm (C D)." httpUri="https://zenodo.org/record/236732/files/figure.png" pageId="8" pageNumber="377">Figs 1</figureCitation>
C, D, 2E, F), smoothly disappearing on hydranth body (
<figureCitation id="2D822A19FF92B44313C659A0FBD43BBA" box="[961,1029,1182,1207]" captionStart="FIGURE 2" captionStartId="2.[151,250,1953,1975]" captionTargetBox="[213,1376,205,1926]" captionTargetId="figure@2.[192,1394,193,1932]" captionTargetPageId="2" captionText="FIGURE 2. Bimeria corynopsis Vanhöffen, 1910: A, branched stem showing polyp; B, unbranched stem with polyp.? Koellikerina belgicae (Vanhöffen, 1910): C, polyp; D, gonophore. Rhizorhagium antarcticum (Hickson &amp; Gravely, 1907): E F, polyps. Scale bar: 250 µm (A C, E F), 125 µm (D)." httpUri="https://zenodo.org/record/236733/files/figure.png" pageId="8" pageNumber="377">Fig. 2</figureCitation>
E, F). No distinct pseudohydrotheca present. Polyps 800900 µm high and 250300 µm in maximum diameter, with conical hypostome and a distal crown of nine to 12 filiform tentacles (
<figureCitation id="2D822A19FF92B443124F59D8FD5D3BF2" box="[584,652,1254,1279]" captionStart="FIGURE 2" captionStartId="2.[151,250,1953,1975]" captionTargetBox="[213,1376,205,1926]" captionTargetId="figure@2.[192,1394,193,1932]" captionTargetPageId="2" captionText="FIGURE 2. Bimeria corynopsis Vanhöffen, 1910: A, branched stem showing polyp; B, unbranched stem with polyp.? Koellikerina belgicae (Vanhöffen, 1910): C, polyp; D, gonophore. Rhizorhagium antarcticum (Hickson &amp; Gravely, 1907): E F, polyps. Scale bar: 250 µm (A C, E F), 125 µm (D)." httpUri="https://zenodo.org/record/236733/files/figure.png" pageId="8" pageNumber="377">Fig. 2</figureCitation>
E, F).
</paragraph>
<paragraph id="B506369CFF92B44310C05834FAFC394E" blockId="8.[151,1437,1074,2035]" pageId="8" pageNumber="377">
Gonophores c. 950 µm high and c. 680 µm in maximum diameter, on short pedicels, either on hydrorhizal stolon or at basal part of largest stems (
<figureCitation id="2D822A19FF92B443125F5810FD4C3A4A" box="[600,669,1326,1351]" captionStart="FIGURE 1" captionStartId="1.[151,250,1858,1880]" captionTargetBox="[160,1422,871,1820]" captionTargetId="figure@1.[151,1436,860,1834]" captionTargetPageId="1" captionText="FIGURE 1. Bimeria corynopsis Vanhöffen, 1910: A, a few stems growing on Staurotheca.? Koellikerina belgicae (Vanhöffen, 1910): B, colony with several stems. Rhizorhagium antarcticum (Hickson &amp; Gravely, 1907): C D, several stems and gonophores. Scale bar: 2 mm (A B), 1 mm (C D)." httpUri="https://zenodo.org/record/236732/files/figure.png" pageId="8" pageNumber="377">Figs 1</figureCitation>
C, D, 3F). “The colonies appear to be invariably dioecious. In both sexes the gonophore is a degenerate medusa ... protected by a thin layer of perisarc. It is larger in the female than in the male (
<quantity id="72419B79FF92B44311015849FE8E3A83" box="[262,351,1399,1423]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="377" unit="mm" value="1.1">1.1 mm</quantity>
. x
<quantity id="72419B79FF92B44311795849FE063A83" box="[382,471,1399,1423]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="8" pageNumber="377" unit="mm" value="0.9">0.9 mm</quantity>
. in the female, and
<quantity id="72419B79FF92B44312B65849FCD83A83" box="[689,777,1399,1423]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="8" pageNumber="377" unit="mm" value="0.9">0.9 mm</quantity>
. x
<quantity id="72419B79FF92B443132E5849FC503A83" box="[809,897,1399,1423]" metricMagnitude="-4" metricUnit="m" metricValue="7.0" pageId="8" pageNumber="377" unit="mm" value="0.7">0.7 mm</quantity>
. in the male). In the female gonophore there is a large sub-umbrella cavity (fig. 3, su.c), the manubrium is well developed and has a well-marked endoderm cavity. In the young gonophore there is a distinct endodermal layer of cells and mesoglea in the umbrella, but in the adult gonophore (fig. 32) these are reduced to a non-cellular mesoglea except at the margin, where a cord of cells represents the ring canal. There are no radial canals in the adult gonophore. In the male gonophore the subumbrella cavity is completely filled with sperm cells (figs. 2 and 32, sp.)” (
<bibRefCitation id="D1284B6DFF92B44313D95B14FACE394E" author="Hickson" box="[990,1311,1578,1603]" pageId="8" pageNumber="377" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely, 1907: 5</bibRefCitation>
).
</paragraph>
<paragraph id="B506369CFF92B44310C05B70FA9E396A" blockId="8.[151,1437,1074,2035]" box="[199,1359,1614,1639]" pageId="8" pageNumber="377">
Cnidome consisting of two categories of nematocysts,
<typeStatus id="6A02883EFF92B443132B5B71FCB5396A" box="[812,868,1615,1639]" pageId="8" pageNumber="377">Type</typeStatus>
I (microbasic euryteles?) and desmonemes.
</paragraph>
<paragraph id="B506369CFF92B44310C05B4DFC6939A2" blockId="8.[151,1437,1074,2035]" pageId="8" pageNumber="377">
Measurements (in µm).
<emphasis id="87CDEA8EFF92B44311D45B4CFDE93986" box="[467,568,1650,1675]" italics="true" pageId="8" pageNumber="377">Cnidome</emphasis>
:
<typeStatus id="6A02883EFF92B44312415B4DFDAC3986" box="[582,637,1651,1675]" pageId="8" pageNumber="377">Type</typeStatus>
I [range 7.07.5 x 4.04.5, mean 7.3±0.2 x 4.1±0.2 (n=10); ratio, range 1.61.9, mean 1.8±0.1 (n=10)], desmonemes [range 5.56.0 x 3.03.5].
</paragraph>
</subSubSection>
<subSubSection id="FDA36517FF92B44210C05B84FEE43BE5" lastPageId="9" lastPageNumber="378" pageId="8" pageNumber="377" type="discussion">
<paragraph id="B506369CFF92B44310C05B84FA98386E" blockId="8.[151,1437,1074,2035]" pageId="8" pageNumber="377">
<emphasis id="87CDEA8EFF92B44310C05B84FEEA39DE" bold="true" box="[199,315,1722,1747]" pageId="8" pageNumber="377">Remarks.</emphasis>
This is a well-characterized species, the only important character missing from the original description was information related to the cnidome. The examination of the
<typeStatus id="6A02883EFF92B44314275BE1FB8139FA" box="[1056,1104,1759,1783]" pageId="8" pageNumber="377">type</typeStatus>
material has allowed me to complete this partially. The heteronemes could not be identified because they could not be seen discharged. However, it is worth mentioning that
<bibRefCitation id="D1284B6DFF92B443123B5A19FCB43832" box="[572,869,1830,1855]" pageId="8" pageNumber="377" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article">
Peña Cantero
<emphasis id="87CDEA8EFF92B44312DE5A19FCC03832" box="[729,785,1830,1855]" italics="true" pageId="8" pageNumber="377">et al.</emphasis>
(2013)
</bibRefCitation>
, in material that perfectly agrees with this species, identified them as microbasic euryteles.
<bibRefCitation id="D1284B6DFF92B443125C5A74FCD0386E" author="Millard" box="[603,769,1866,1891]" pageId="8" pageNumber="377" refString="Millard, N. A. H. (1971) Hydrozoa. In: Van Zinderen Bakker, E. M. Winterbottom, Sr. J. M. &amp; Dyer, R. A. (Eds.), Marion and Prince Edward Islands. A. A. Balkema, Cape Town, pp. 396 - 408, figs. 1 - 7." type="book chapter" year="1971">Millard (1971)</bibRefCitation>
also indicated the presence of microbasic euryteles.
</paragraph>
<paragraph id="B506369CFF92B44310C05A50FB70388A" blockId="8.[151,1437,1074,2035]" box="[199,1185,1902,1927]" pageId="8" pageNumber="377">
<bibRefCitation id="D1284B6DFF92B44310C05A50FE25388A" author="Hickson" box="[199,500,1902,1927]" pageId="8" pageNumber="377" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely (1907)</bibRefCitation>
gave an excellent description of the gonophores (see above).
</paragraph>
<paragraph id="B506369CFF92B44210C05AACFCD43E8A" blockId="8.[151,1437,1074,2035]" lastBlockId="9.[151,1437,151,1256]" lastPageId="9" lastPageNumber="378" pageId="8" pageNumber="377">
Problems with this species were related with its genus allocation. Originally described as
<taxonomicName id="72B94D1FFF92B443150A5AAAFEC538C3" class="Hydrozoa" family="Bougainvilliidae" genus="Perigonimus" higherTaxonomySource="CoL" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="species" species="antarcticus">
<emphasis id="87CDEA8EFF92B443150A5AAAFEC538C3" italics="true" pageId="8" pageNumber="377">Perigonimus antarcticus</emphasis>
</taxonomicName>
, it was later considered belonging to
<taxonomicName id="72B94D1FFF92B44312CF5A88FCE438C2" box="[712,821,1974,1999]" class="Magnoliopsida" family="Asteraceae" genus="Atractylis" kingdom="Animalia" order="Asterales" pageId="8" pageNumber="377" phylum="Tracheophyta" rank="genus">
<emphasis id="87CDEA8EFF92B44312CF5A88FCE438C2" box="[712,821,1974,1999]" italics="true" pageId="8" pageNumber="377">Atractylis</emphasis>
</taxonomicName>
by
<bibRefCitation id="D1284B6DFF92B44313645A88FBFF38C2" author="Vanhoffen" box="[867,1070,1974,1999]" pageId="8" pageNumber="377" refString="Vanhoffen, E. (1910) Die Hydroiden der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition 1901 - 1903, 11 (Zoology 3), 269 - 340." type="journal article" year="1910">Vanhöffen (1910)</bibRefCitation>
.
<bibRefCitation id="D1284B6DFF92B443143B5A89FB0938C2" author="Totton" box="[1084,1240,1975,1999]" pageId="8" pageNumber="377" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton (1930)</bibRefCitation>
even erected the new genus
<taxonomicName id="72B94D1FFF92B443111D5AE4FE5338FE" box="[282,386,2010,2035]" class="Hydrozoa" family="Bougainvilliidae" genus="Gravelya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF92B443111D5AE4FE5338FE" box="[282,386,2010,2035]" italics="true" pageId="8" pageNumber="377">Gravelya</emphasis>
</taxonomicName>
to allocate it.
<bibRefCitation id="D1284B6DFF92B443122B5AE5FD6638FE" author="Rees" box="[556,695,2011,2035]" pageId="8" pageNumber="377" refString="Rees, W. J. (1938) Observations on British and Norwegian hydroids and their medusae. Journal of the Marine Biological Association of the United Kingdom, 23, 1 - 42. http: // dx. doi. org / 10.1017 / S 0025315400053923" type="journal article" year="1938">Rees (1938)</bibRefCitation>
re-erected the genus
<taxonomicName id="72B94D1FFF92B44313B65AE4FB2A38FE" authority="M. Sars, 1874" authorityName="M. Sars" authorityYear="1874" box="[945,1275,2010,2035]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="8" pageNumber="377" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF92B44313B65AE4FB9E38FE" box="[945,1103,2010,2035]" italics="true" pageId="8" pageNumber="377">Rhizorhagium</emphasis>
M. Sars, 1874
</taxonomicName>
to include all unbranched colonial bougainvilliids with pseudohydrotheca not enveloping the tentacles, with one crown of filiform tentacles and with fixed sporosacs.
<bibRefCitation id="D1284B6DFF93B44212795D82FCCB3FD9" author="Calder" box="[638,794,188,213]" pageId="9" pageNumber="378" refString="Calder, D. R. (1988) Shallow-water hydroids of Bermuda. The Athecatae. Royal Ontario Museum Life Sciences Contributions, 148, 1 - 107." type="journal article" year="1988">Calder (1988)</bibRefCitation>
separated members with nipple-shaped hypostomes from this group, including the
<typeStatus id="6A02883EFF93B44211CE5DDEFE283FF5" box="[457,505,224,248]" pageId="9" pageNumber="378">type</typeStatus>
species of
<taxonomicName id="72B94D1FFF93B442128E5DE1FCF63FF5" box="[649,807,223,248]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF93B442128E5DE1FCF63FF5" box="[649,807,223,248]" italics="true" pageId="9" pageNumber="378">Rhizorhagium</emphasis>
</taxonomicName>
(
<taxonomicName id="72B94D1FFF93B442133A5DDFFC653FF5" box="[829,948,225,248]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="species" species="roseum">
<emphasis id="87CDEA8EFF93B442133A5DDFFC653FF5" box="[829,948,225,248]" italics="true" pageId="9" pageNumber="378">R. roseum</emphasis>
</taxonomicName>
). Consequently,
<bibRefCitation id="D1284B6DFF93B44214795DE1FA973FF5" author="Schuchert" box="[1150,1350,223,248]" pageId="9" pageNumber="378" refString="Schuchert, P. (1996) The marine fauna of New Zealand: athecate hydroids and their medusa (Cnidaria: Hydrozoa). New Zealand Oceanographic Institute Memoir, 106, 1 - 159." type="journal article" year="1996">Schuchert (1996)</bibRefCitation>
saw it necessary to move those species that lack nipple-shaped hypostomes into other genera, in particular to
<taxonomicName id="72B94D1FFF93B44215195C3AFEFD3E4D" authority="Berrill, 1948" authorityName="Berrill" authorityYear="1948" class="Hydrozoa" family="Bougainvilliidae" genus="Aselomaris" higherTaxonomySource="CoL" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF93B44215195C3AFA4D3E10" box="[1310,1436,260,285]" italics="true" pageId="9" pageNumber="378">Aselomaris</emphasis>
Berrill, 1948
</taxonomicName>
and
<taxonomicName id="72B94D1FFF93B44211685C19FDAC3E4D" authority="Totton, 1930" authorityName="Totton" authorityYear="1930" box="[367,637,295,320]" class="Hydrozoa" family="Bougainvilliidae" genus="Gravelya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF93B44211685C19FE063E4D" box="[367,471,295,320]" italics="true" pageId="9" pageNumber="378">Gravelya</emphasis>
<bibRefCitation id="D1284B6DFF93B44211E35C16FDAC3E4D" author="Totton" box="[484,637,296,320]" pageId="9" pageNumber="378" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton, 1930</bibRefCitation>
</taxonomicName>
, the latter harbouring the present species. More recently, however, Calders division based on the shape of the hypostome was not supported (cf.
<bibRefCitation id="D1284B6DFF93B44214105C72FAD03E68" author="Bouillon" box="[1047,1281,332,357]" pageId="9" pageNumber="378" refString="Bouillon, J., Gravili, C., Pages, F., Gili, J. M. &amp; Boero, F. (2006) An introduction to Hydrozoa. Memoires du Museum national d'Histoire naturelle, 194, 1 - 591." type="journal article" year="2006">
Bouillon
<emphasis id="87CDEA8EFF93B44214855C73FB653E68" box="[1154,1204,332,357]" italics="true" pageId="9" pageNumber="378">et al</emphasis>
. 2006
</bibRefCitation>
: 126) and the species is again considered belonging to
<taxonomicName id="72B94D1FFF93B44212675C51FD2F3E85" box="[608,766,367,392]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF93B44212675C51FD2F3E85" box="[608,766,367,392]" italics="true" pageId="9" pageNumber="378">Rhizorhagium</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="B506369CFF93B44210C05CAAFC2D3D15" blockId="9.[151,1437,151,1256]" pageId="9" pageNumber="378">
Schucherts (1996) material seems to correspond to a different species. The perisarc and the pseudohydrotheca are contaminated with detritus and the size of polyps is smaller. Female gonophores are also distinctly smaller (0.5 x
<quantity id="72419B79FF93B44210A95CE2FED93EF9" box="[174,264,476,500]" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="9" pageNumber="378" unit="mm" value="0.3">0.3 mm</quantity>
) than those studied by
<bibRefCitation id="D1284B6DFF93B442121F5CE2FC813EF9" author="Hickson" box="[536,848,476,501]" pageId="9" pageNumber="378" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely (1907)</bibRefCitation>
. He also indicated that there are up to
<specimenCount id="A3BFFD15FF93B44215115CE2FABF3EF8" box="[1302,1390,476,501]" pageId="9" pageNumber="378" type="egg">20 eggs</specimenCount>
per gonophore;
<bibRefCitation id="D1284B6DFF93B442111A5CC1FE123D15" author="Millard" box="[285,451,511,536]" pageId="9" pageNumber="378" refString="Millard, N. A. H. (1971) Hydrozoa. In: Van Zinderen Bakker, E. M. Winterbottom, Sr. J. M. &amp; Dyer, R. A. (Eds.), Marion and Prince Edward Islands. A. A. Balkema, Cape Town, pp. 396 - 408, figs. 1 - 7." type="book chapter" year="1971">Millard (1971)</bibRefCitation>
and
<bibRefCitation id="D1284B6DFF93B44211FE5CC1FCF43D15" author="Branch" box="[505,805,511,536]" pageId="9" pageNumber="378" refString="Branch, M. L. &amp; Williams, G. C. (1993) The Hydrozoa, Octocorallia and Scleractinia of subantarctic Marion and Prince Edward Islands: illustrated keys to the species and results of the 1982 - 1989 University of Cape Town surveys. South African Journal of Antarctic Research, 23 (1 - 2), 3 - 24." type="journal article" year="1993">Branch &amp; Williams (1993)</bibRefCitation>
found 30
<specimenCount id="A3BFFD15FF93B44213995F3EFC6B3D15" box="[926,954,512,536]" pageId="9" pageNumber="378" type="egg">40</specimenCount>
eggs.
</paragraph>
<paragraph id="B506369CFF93B44210C05F1AFADC3DFD" blockId="9.[151,1437,151,1256]" pageId="9" pageNumber="378">
According to the diagnosis of the genus provided by
<bibRefCitation id="D1284B6DFF93B442134A5F1AFB823D30" box="[845,1107,548,573]" pageId="9" pageNumber="378" refString="Bouillon, J., Gravili, C., Pages, F., Gili, J. M. &amp; Boero, F. (2006) An introduction to Hydrozoa. Memoires du Museum national d'Histoire naturelle, 194, 1 - 591." type="journal article">
Bouillon
<emphasis id="87CDEA8EFF93B44213BB5F1BFC2B3D30" box="[956,1018,548,573]" italics="true" pageId="9" pageNumber="378">et al.</emphasis>
(2006)
</bibRefCitation>
,
<taxonomicName id="72B94D1FFF93B44214635F1AFAD33D30" box="[1124,1282,548,573]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="genus">
<emphasis id="87CDEA8EFF93B44214635F1AFAD33D30" box="[1124,1282,548,573]" italics="true" pageId="9" pageNumber="378">Rhizorhagium</emphasis>
</taxonomicName>
should have perisarc firm, continued over polyp base as a pseudohydrotheca, but never investing tentacle bases. According to
<bibRefCitation id="D1284B6DFF93B44210905F52FE1E3D89" box="[151,463,620,645]" pageId="9" pageNumber="378" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article">Hickson &amp; Gravely, (1907)</bibRefCitation>
, the perisarc is continued as an exceedingly thin film over the hydranth as far as the base of the tentacles.
<bibRefCitation id="D1284B6DFF93B44211945FAEFCC73DA5" author="Naumov" box="[403,790,655,680]" pageId="9" pageNumber="378" refString="Naumov, D. V. &amp; Stepanjants, S. D. (1972) Marine invertebrates from Adelie Land collected by the XIIth and XVth French Antarctic Expeditions. 3. Hydroida. Tethys Supplement, 4, 25 - 60." type="journal article" year="1972">Naumov &amp; Stepanjants (1972: 35)</bibRefCitation>
also indicated that the polyps body is covered by a fine sheet of perisarc reaching the base of tentacles. In the material examined the perisarc is not firm and it does not form a distinct pseudohydrotheca; the perisarc sheet covering the polyp body is totally inconspicuous.
</paragraph>
<paragraph id="B506369CFF93B44210C05FC2FB363CE1" blockId="9.[151,1437,151,1256]" pageId="9" pageNumber="378">
<emphasis id="87CDEA8EFF93B44210C05FC2FE293C18" bold="true" box="[199,504,764,789]" pageId="9" pageNumber="378">Ecology and distribution.</emphasis>
<taxonomicName id="72B94D1FFF93B44211F85FC2FCFA3C19" box="[511,811,764,789]" class="Hydrozoa" family="Bougainvilliidae" genus="Rhizorhagium" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="378" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="87CDEA8EFF93B44211F85FC2FCFA3C19" box="[511,811,764,789]" italics="true" pageId="9" pageNumber="378">Rhizorhagium antarcticum</emphasis>
</taxonomicName>
has been found at depths from the tidal level (
<bibRefCitation id="D1284B6DFF93B442153A5FC2FE893C35" author="Hickson" pageId="9" pageNumber="378" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely 1907</bibRefCitation>
) to
<quantity id="72419B79FF93B44211895E21FE0B3C3A" box="[398,474,799,824]" metricMagnitude="2" metricUnit="m" metricValue="4.5" pageId="9" pageNumber="378" unit="m" value="450.0">450 m</quantity>
(
<bibRefCitation id="D1284B6DFF93B44211EA5E1EFD513C35" author="Totton" box="[493,640,800,824]" pageId="9" pageNumber="378" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton 1930</bibRefCitation>
), epibiotic on hydroids (
<bibRefCitation id="D1284B6DFF93B44213A45E21FB9E3C35" author="Hartlaub" box="[931,1103,799,824]" pageId="9" pageNumber="378" refString="Hartlaub, C. (1904) Hydroiden. In: Expedition antarctique Belge. Resultats du voyage du S. Y. Belgica en 1897 - 1899. Rapports scientifiques, Zoologie, 1 - 19." type="book chapter" year="1904">Hartlaub 1904</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44214585E21FB263C35" author="Ritchie" box="[1119,1271,799,824]" pageId="9" pageNumber="378" refString="Ritchie, J. (1913) The hydroid zoophytes collected by the British Antarctic Expedition of Sir Ernest Shackleton, 1908. Proceedings of the Royal Society of Edinburgh, 33 (1), 9 - 34." type="journal article" year="1913">Ritchie 1913</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B442150F5E1EFA463C35" author="Totton" box="[1288,1431,800,824]" pageId="9" pageNumber="378" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton 1930</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44210905E7BFE393C51" author="Naumov" box="[151,488,836,861]" pageId="9" pageNumber="378" refString="Naumov, D. V. &amp; Stepanjants, S. D. (1972) Marine invertebrates from Adelie Land collected by the XIIth and XVth French Antarctic Expeditions. 3. Hydroida. Tethys Supplement, 4, 25 - 60." type="journal article" year="1972">Naumov &amp; Stepanjants 1972</bibRefCitation>
; Stepanjants 1972, 1979;
<bibRefCitation id="D1284B6DFF93B44213125E7BFBE93C51" author="Pena" box="[789,1080,836,861]" pageId="9" pageNumber="378" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">
Peña Cantero
<emphasis id="87CDEA8EFF93B44213BF5E7BFC3C3C50" box="[952,1005,836,861]" italics="true" pageId="9" pageNumber="378">et al</emphasis>
. 2013
</bibRefCitation>
) and tube of polychaete (
<bibRefCitation id="D1284B6DFF93B44215635E7AFEAA3C8D" author="Pena" pageId="9" pageNumber="378" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">
Peña Cantero
<emphasis id="87CDEA8EFF93B44210FD5E57FEFF3C8D" box="[250,302,871,896]" italics="true" pageId="9" pageNumber="378">et al</emphasis>
. 2013
</bibRefCitation>
) and epilithic on stones (
<bibRefCitation id="D1284B6DFF93B44212A05E59FC953C8D" author="Millard" box="[679,836,871,896]" pageId="9" pageNumber="378" refString="Millard, N. A. H. (1971) Hydrozoa. In: Van Zinderen Bakker, E. M. Winterbottom, Sr. J. M. &amp; Dyer, R. A. (Eds.), Marion and Prince Edward Islands. A. A. Balkema, Cape Town, pp. 396 - 408, figs. 1 - 7." type="book chapter" year="1971">Millard 1971</bibRefCitation>
). It is used in turn as substrate by other species of hydroids (
<bibRefCitation id="D1284B6DFF93B442110E5EB2FDF83CA9" author="Pena" box="[265,553,908,933]" pageId="9" pageNumber="378" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">
Peña Cantero
<emphasis id="87CDEA8EFF93B44211AD5EB3FE0D3CA8" box="[426,476,908,933]" italics="true" pageId="9" pageNumber="378">et al</emphasis>
. 2013
</bibRefCitation>
). Gonophores have been found in colonies collected in January (
<bibRefCitation id="D1284B6DFF93B442150E5EB2FA463CA9" author="Totton" box="[1289,1431,908,932]" pageId="9" pageNumber="378" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton 1930</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44210905E91FEB13CC5" author="Stepanjants" box="[151,352,943,968]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44211745E8EFD773CC5" author="Pena" box="[371,678,943,968]" pageId="9" pageNumber="378" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">
Peña Cantero
<emphasis id="87CDEA8EFF93B442121A5E8FFD853CC5" box="[541,596,943,968]" italics="true" pageId="9" pageNumber="378">et al</emphasis>
. 2013
</bibRefCitation>
), February (
<bibRefCitation id="D1284B6DFF93B442133D5E8EFC1C3CC5" author="Totton" box="[826,973,944,968]" pageId="9" pageNumber="378" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton 1930</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44213E75E91FB7B3CC5" author="Stepanjants" box="[992,1194,943,968]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
), from May to July (
<bibRefCitation id="D1284B6DFF93B44210995EEAFEB53CE1" author="Stepanjants" box="[158,356,980,1005]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
), August (
<bibRefCitation id="D1284B6DFF93B44211D15EEAFDBA3CE1" author="Ritchie" box="[470,619,980,1005]" pageId="9" pageNumber="378" refString="Ritchie, J. (1913) The hydroid zoophytes collected by the British Antarctic Expedition of Sir Ernest Shackleton, 1908. Proceedings of the Royal Society of Edinburgh, 33 (1), 9 - 34." type="journal article" year="1913">Ritchie 1913</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44212705EEAFCE63CE1" author="Stepanjants" box="[631,823,980,1005]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
) and in December (
<bibRefCitation id="D1284B6DFF93B44214125EEAFB0A3CE1" author="Stepanjants" box="[1045,1243,980,1005]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
).
</paragraph>
<paragraph id="B506369CFF93B44210C05EC9FEE43BE5" blockId="9.[151,1437,151,1256]" pageId="9" pageNumber="378">
Probably Antarctic-Kerguelen distribution, although a careful re-examination of previous records is needed. In
<collectingCountry id="CDAE760CFF93B44210905922FF2E3B38" box="[151,255,1052,1077]" name="Antarctica" pageId="9" pageNumber="378">Antarctic</collectingCountry>
waters, recorded from the Ross Sea (
<bibRefCitation id="D1284B6DFF93B44212A45922FC123B39" author="Hickson" box="[675,963,1052,1077]" pageId="9" pageNumber="378" refString="Hickson, S. J. &amp; Gravely, F. H. (1907) Coelenterata. II. Hydroid zoophytes. National Antarctic Expedition (S. S. Discovery) 1901 - 1904, Natural History, 3, 1 - 34, pls 1 - 4." type="journal article" year="1907">Hickson &amp; Gravely 1907</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44213C85922FBB23B39" author="Ritchie" box="[975,1123,1052,1077]" pageId="9" pageNumber="378" refString="Ritchie, J. (1913) The hydroid zoophytes collected by the British Antarctic Expedition of Sir Ernest Shackleton, 1908. Proceedings of the Royal Society of Edinburgh, 33 (1), 9 - 34." type="journal article" year="1913">Ritchie 1913</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44214685923FB2B3B39" author="Totton" box="[1135,1274,1052,1076]" pageId="9" pageNumber="378" refString="Totton, A. K. (1930) Coelenterata. Part V. Hydroida. Natural History Report, British Antarctic ' Terra Nova' Expedition, 1910, Zoology, 5 (5), 131 - 252, pls 1 - 3." type="journal article" year="1930">Totton 1930</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B44215015923FEC03B55" author="Pena" pageId="9" pageNumber="378" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. http: // dx. doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">
Peña Cantero
<emphasis id="87CDEA8EFF93B4421090597FFF163B55" box="[151,199,1087,1112]" italics="true" pageId="9" pageNumber="378">et al</emphasis>
. 2013
</bibRefCitation>
), Adélie Land (
<bibRefCitation id="D1284B6DFF93B44211BB597EFCD53B55" author="Naumov" box="[444,772,1087,1112]" pageId="9" pageNumber="378" refString="Naumov, D. V. &amp; Stepanjants, S. D. (1972) Marine invertebrates from Adelie Land collected by the XIIth and XVth French Antarctic Expeditions. 3. Hydroida. Tethys Supplement, 4, 25 - 60." type="journal article" year="1972">Naumov &amp; Stepanjants 1972</bibRefCitation>
), Davis Sea (
<bibRefCitation id="D1284B6DFF93B44213925901FB9C3B55" author="Vanhoffen" box="[917,1101,1087,1112]" pageId="9" pageNumber="378" refString="Vanhoffen, E. (1910) Die Hydroiden der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition 1901 - 1903, 11 (Zoology 3), 269 - 340." type="journal article" year="1910">Vanhöffen 1910</bibRefCitation>
; Stepanjants 1972, 1979), and Sodruzestva Sea (Emery glacier) (
<bibRefCitation id="D1284B6DFF93B4421232595AFCD33B71" author="Stepanjants" box="[565,770,1124,1149]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
), in East
<taxonomicName id="72B94D1FFF93B4421386595AFC283B70" box="[897,1017,1124,1149]" class="Hydrozoa" family="Bougainvilliidae" genus="Gravelya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="377" phylum="Cnidaria" rank="species" species="antarctica">
<collectingCountry id="CDAE760CFF93B4421386595AFC283B70" box="[897,1017,1124,1149]" name="Antarctica" pageId="9" pageNumber="378">Antarctica</collectingCountry>
</taxonomicName>
, and from the Bellingshausen Sea (
<bibRefCitation id="D1284B6DFF93B442109959B9FE993BAD" author="Hartlaub" box="[158,328,1159,1184]" pageId="9" pageNumber="378" refString="Hartlaub, C. (1904) Hydroiden. In: Expedition antarctique Belge. Resultats du voyage du S. Y. Belgica en 1897 - 1899. Rapports scientifiques, Zoologie, 1 - 19." type="book chapter" year="1904">Hartlaub 1904</bibRefCitation>
), in West
<taxonomicName id="72B94D1FFF93B44211B859B9FDE63BAD" box="[447,567,1159,1184]" class="Hydrozoa" family="Bougainvilliidae" genus="Gravelya" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="9" pageNumber="377" phylum="Cnidaria" rank="species" species="antarctica">
<collectingCountry id="CDAE760CFF93B44211B859B9FDE63BAD" box="[447,567,1159,1184]" name="Antarctica" pageId="9" pageNumber="378">Antarctica</collectingCountry>
</taxonomicName>
. In sub-Antarctic waters, it is known from off Marion and Prince Edwards Islands (
<bibRefCitation id="D1284B6DFF93B44210F25992FE5D3BC9" author="Millard" box="[245,396,1196,1221]" pageId="9" pageNumber="378" refString="Millard, N. A. H. (1971) Hydrozoa. In: Van Zinderen Bakker, E. M. Winterbottom, Sr. J. M. &amp; Dyer, R. A. (Eds.), Marion and Prince Edward Islands. A. A. Balkema, Cape Town, pp. 396 - 408, figs. 1 - 7." type="book chapter" year="1971">Millard 1971</bibRefCitation>
;
<bibRefCitation id="D1284B6DFF93B442119F5992FD633BC9" author="Branch" box="[408,690,1196,1221]" pageId="9" pageNumber="378" refString="Branch, M. L. &amp; Williams, G. C. (1993) The Hydrozoa, Octocorallia and Scleractinia of subantarctic Marion and Prince Edward Islands: illustrated keys to the species and results of the 1982 - 1989 University of Cape Town surveys. South African Journal of Antarctic Research, 23 (1 - 2), 3 - 24." type="journal article" year="1993">Branch &amp; Williams 1993</bibRefCitation>
) and Crozet (
<bibRefCitation id="D1284B6DFF93B442134D5992FBDE3BC9" author="Stepanjants" box="[842,1039,1196,1221]" pageId="9" pageNumber="378" refString="Stepanjants, S. D. (1979) Hydroids of the antarctic and subantarctic waters. In: Biological results of the Soviet Antarctic Expedition, 6. Issledovaniya Fauny Morei, 20 (30), 1 - 200, pls 1 - 25. [in Russian]" type="journal article" year="1979">Stepanjants 1979</bibRefCitation>
). Schucherts (1996) record is from
<collectingCountry id="CDAE760CFF93B442109059EFFEE03BE5" box="[151,305,1231,1256]" name="New Zealand" pageId="9" pageNumber="378">New Zealand</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>