treatments-xml/data/03/8F/8C/038F8C6CFFDFD42F6314FB4C4ED8AFAC.xml

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<mods:title id="9957AB31C147C17E9B6B9BD57F8BDBC6">The taxonomic status of the genus Moseria (Siphonophora, Physonectae)</mods:title>
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<treatment id="038F8C6CFFDFD42F6314FB4C4ED8AFAC" ID-DOI="http://doi.org/10.5281/zenodo.5688261" ID-GBIF-Taxon="119351358" ID-Zenodo-Dep="5688261" LSID="urn:lsid:plazi:treatment:038F8C6CFFDFD42F6314FB4C4ED8AFAC" httpUri="http://treatment.plazi.org/id/038F8C6CFFDFD42F6314FB4C4ED8AFAC" lastPageId="16" lastPageNumber="17" pageId="6" pageNumber="7">
<subSubSection id="C33C6EF1FFDFD4396314FB4C4DD3AE49" box="[264,671,1273,1299]" pageId="6" pageNumber="7" type="nomenclature">
<paragraph id="8B993D7AFFDFD4396314FB4C4DD3AE49" blockId="6.[264,671,1273,1299]" box="[264,671,1273,1299]" pageId="6" pageNumber="7">
<heading id="D0D18A16FFDFD4396314FB4C4DD3AE49" bold="true" box="[264,671,1273,1299]" fontSize="11" level="1" pageId="6" pageNumber="7" reason="1">
<taxonomicName id="4C2646F9FFDFD4396314FB4C4DD3AE49" ID-CoL="6WSNG" authority="Moser, 1925" authorityName="Moser" authorityYear="1925" box="[264,671,1273,1299]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="6" pageNumber="7" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFDFD4396314FB4C4DD3AE49" bold="true" box="[264,671,1273,1299]" pageId="6" pageNumber="7">
<emphasis id="B952E168FFDFD4396314FB4C4EA1AE49" bold="true" box="[264,493,1273,1299]" italics="true" pageId="6" pageNumber="7">Resomia convoluta</emphasis>
(
<bibRefCitation id="EFB7408BFFDFD43963E1FB4C4DDBAE49" author="Moser" box="[509,663,1273,1299]" pageId="6" pageNumber="38" refString="Moser, F. (1925) Die Siphonophoren der Deutschen Sudpolar-Expedition, 1901 - 03. Deutsche Sudpolar-Expedition, 17 (zool 9), 1 - 541." type="journal article" year="1925">Moser, 1925</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33C6EF1FFDFD4396314FAF14A68AEF4" pageId="6" pageNumber="7" type="diagnosis">
<paragraph id="8B993D7AFFDFD4396314FAF14A68AEF4" blockId="6.[264,1323,1348,1777]" pageId="6" pageNumber="7">
<emphasis id="B952E168FFDFD4396314FAF14E33AE07" box="[264,383,1348,1373]" italics="true" pageId="6" pageNumber="7">Diagnosis</emphasis>
: Very young nectophores bearing no lateral digitate processes. Bracts with relatively small, triangular distal facet on upper surface; with bracteal canal ending at distal point below a cluster of nematocysts. Palpons without distal cluster of nematocysts.
</paragraph>
</subSubSection>
<subSubSection id="C33C6EF1FFDFD4396324FA094E1BADFB" pageId="6" pageNumber="7" type="materials_examined">
<paragraph id="8B993D7AFFDFD4396324FA094E1BADFB" blockId="6.[264,1323,1348,1777]" pageId="6" pageNumber="7">
<emphasis id="B952E168FFDFD4396324FA094D52AE8F" box="[312,542,1468,1493]" italics="true" pageId="6" pageNumber="7">Material examined</emphasis>
: Two specimens kindly loaned to me by Dr Francesc Pagès collected in the Weddell Sea (see 
<bibRefCitation id="EFB7408BFFDFD43960A8FA514B45AEA4" author="Pages" box="[692,1033,1508,1534]" pageId="6" pageNumber="38" refString="Pages, F. &amp; Kurbjeweit, F. (1994) Vertical distribution and abundance of macroplanktonic medusae and siphonophores from the Weddell Sea, Antarctica. Polar Biology, 14, 243 - 251." type="journal article" year="1994">Pagès and Kurbjeweit 1994</bibRefCitation>
) by the RV 
<emphasis id="B952E168FFDFD43966B1FA514A67AEA7" box="[1197,1323,1508,1533]" italics="true" pageId="6" pageNumber="7">Polarstern</emphasis>
during the 
<collectingCountry id="F3317DEAFFDFD4396394F9B94EB9AD7C" box="[392,501,1548,1574]" name="Antarctica" pageId="6" pageNumber="7">Antarktis</collectingCountry>
<date id="FF981BBAFFDFD43963E1F9B94D7FAD7C" box="[509,563,1548,1574]" bridgedPair="/" pageId="6" pageNumber="7">IX/2</date>
cruise at Stations 67 (
<date id="FF981BBAFFDFD4396126F9B94CF9AD7C" box="[826,949,1548,1574]" pageId="6" pageNumber="7" value="1990-12-02">2.xii.1990</date>
, 
<geoCoordinate id="EE125BBDFFDFD43961DDF9B94B77AD7C" box="[961,1083,1548,1574]" direction="south" orientation="latitude" pageId="6" pageNumber="7" precision="92" value="-66.465">66°27.9’S</geoCoordinate>
, 
<geoCoordinate id="EE125BBDFFDFD439665BF9B94B87AD7C" box="[1095,1227,1548,1574]" direction="west" orientation="longitude" pageId="6" pageNumber="7" precision="92" value="-28.731667">28°43.9’W</geoCoordinate>
) and 94 (
<date id="FF981BBAFFDFD439630DF9814EEFAD14" box="[273,419,1588,1614]" pageId="6" pageNumber="7" value="1990-12-10">10.xii. 1990</date>
, 
<geoCoordinate id="EE125BBDFFDFD43963ADF9814D66AD14" box="[433,554,1588,1614]" direction="south" orientation="latitude" pageId="6" pageNumber="7" precision="92" value="-68.81834">68°49.1’S</geoCoordinate>
, 
<geoCoordinate id="EE125BBDFFDFD4396025F9814DF2AD14" box="[569,702,1588,1614]" direction="west" orientation="longitude" pageId="6" pageNumber="7" precision="92" value="-17.925">17°55.5’W</geoCoordinate>
). Both specimens were collected in the 1000– 
<quantity id="4CDE909FFFDFD43966FBF9814A66AD14" box="[1255,1322,1588,1614]" metricMagnitude="2" metricUnit="m" metricValue="5.0" pageId="6" pageNumber="7" unit="m" value="500.0">500m</quantity>
depth range using a multiple opening/closing net system (
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2 mouth opening, 100µm mesh).
</paragraph>
</subSubSection>
<subSubSection id="C33C6EF1FFDFD42F6324F91A4B9AA97C" lastPageId="16" lastPageNumber="17" pageId="6" pageNumber="7" type="description">
<paragraph id="8B993D7AFFDFD4396324F91A4C6BADAB" blockId="6.[264,1323,1348,1777]" pageId="6" pageNumber="7">
<emphasis id="B952E168FFDFD4396324F91A4E8EAD92" box="[312,450,1711,1736]" italics="true" pageId="6" pageNumber="7">Description</emphasis>
: The description is based mainly on the specimen captured at St. 67, as the one from St. 94 is in relatively poor condition.
</paragraph>
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<paragraph id="8B993D7AFFDED4386314FC724EB3A8A4" blockId="7.[264,1323,967,1022]" pageId="7" pageNumber="8">
<emphasis id="B952E168FFDED4386314FC724EC3A885" bold="true" box="[264,399,967,991]" pageId="7" pageNumber="8">FIGURE 4.</emphasis>
Pneumatophores of 
<taxonomicName id="4C2646F9FFDED4386065FC7D4C06A885" box="[633,842,968,991]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="7" pageNumber="8" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFDED4386065FC7D4C06A885" box="[633,842,968,991]" italics="true" pageId="7" pageNumber="8">Resomia convoluta</emphasis>
</taxonomicName>
. 
<emphasis id="B952E168FFDED4386140FC724C23A885" bold="true" box="[860,879,967,991]" pageId="7" pageNumber="8">A</emphasis>
. from St. 67 specimen, 
<emphasis id="B952E168FFDED4386699FC724BDBA885" bold="true" box="[1157,1175,967,991]" pageId="7" pageNumber="8">B</emphasis>
. from St. 94 specimen. Scale 1 mm.
</paragraph>
</caption>
<paragraph id="8B993D7AFFDED4386324FBF74E19AEC2" blockId="7.[264,1323,1090,1906]" pageId="7" pageNumber="8">
<emphasis id="B952E168FFDED4386324FBF74EBEAF01" box="[312,498,1090,1115]" italics="true" pageId="7" pageNumber="8">Pneumatophore</emphasis>
: The pneumatophore of the specimen from St. 67 (
<figureCitation id="131D21FFFFDED4386652FBF74BD8AF06" box="[1102,1172,1090,1116]" captionStart="FIGURE 4" captionStartId="7.[264,367,967,991]" captionTargetBox="[276,1306,342,927]" captionTargetId="figure@7.[264,1323,326,943]" captionTargetPageId="7" captionText="FIGURE 4. Pneumatophores of Resomia convoluta. A. from St. 67 specimen, B. from St. 94 specimen. Scale 1 mm." httpUri="https://zenodo.org/record/174443/files/figure.png" pageId="7" pageNumber="8">Fig. 4</figureCitation>
<emphasis id="B952E168FFDED4386688FBF74BE5AF06" bold="true" box="[1172,1193,1090,1116]" pageId="7" pageNumber="8">A</emphasis>
) measured 
<quantity id="4CDE909FFFDED4386314FBDF4E3CAFDE" box="[264,368,1130,1156]" metricMagnitude="-3" metricUnit="m" metricValue="1.88" pageId="7" pageNumber="8" unit="mm" value="1.88">1.88 mm</quantity>
in height and 
<quantity id="4CDE909FFFDED438600AFBDF4D33AFDE" box="[534,639,1130,1156]" metricMagnitude="-4" metricUnit="m" metricValue="5.5" pageId="7" pageNumber="8" unit="mm" value="0.55">0.55 mm</quantity>
in maximum diameter. It was quite featureless, apart from a darker patch of cells at the apex, which may have been pigmented in life. There had been some distortion as the base of the gas gland did not reach the base of the pneumatophore. The pneumatosaccus of the pneumatophore of the specimen from St. 94 (
<figureCitation id="131D21FFFFDED4386692FB554B94AFA0" box="[1166,1240,1248,1274]" captionStart="FIGURE 4" captionStartId="7.[264,367,967,991]" captionTargetBox="[276,1306,342,927]" captionTargetId="figure@7.[264,1323,326,943]" captionTargetPageId="7" captionText="FIGURE 4. Pneumatophores of Resomia convoluta. A. from St. 67 specimen, B. from St. 94 specimen. Scale 1 mm." httpUri="https://zenodo.org/record/174443/files/figure.png" pageId="7" pageNumber="8">Fig. 4</figureCitation>
<emphasis id="B952E168FFDED43866CBFB554BA6AFA0" bold="true" box="[1239,1258,1248,1274]" pageId="7" pageNumber="8">B</emphasis>
) had clearly exploded due to gas expansion whilst being brought to the surface, as the expanded gas can be seen within the nectosome. It was greatly distorted and measured 
<quantity id="4CDE909FFFDED43866DCFA9A4A44AE13" box="[1216,1288,1327,1353]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="7" pageNumber="8" unit="mm" value="2.0">2 mm</quantity>
in length and 
<quantity id="4CDE909FFFDED4386396FAE24EBFAE2B" box="[394,499,1367,1393]" metricMagnitude="-4" metricUnit="m" metricValue="9.5" pageId="7" pageNumber="8" unit="mm" value="0.95">0.95 mm</quantity>
in maximum diameter. The significance of this distortion is discussed below.
</paragraph>
<paragraph id="8B993D7AFFDED4386324FA134A6FAEBD" blockId="7.[264,1323,1090,1906]" pageId="7" pageNumber="8">
<emphasis id="B952E168FFDED4386324FA134EF4AEE5" box="[312,440,1446,1471]" italics="true" pageId="7" pageNumber="8">Nectosome</emphasis>
: Buds of nectophores and a single young one were attached at the base of the pneumatophore on the specimen from St. 67 (
<figureCitation id="131D21FFFFDED4386155FA784CC3AEBD" box="[841,911,1485,1511]" captionStart="FIGURE 4" captionStartId="7.[264,367,967,991]" captionTargetBox="[276,1306,342,927]" captionTargetId="figure@7.[264,1323,326,943]" captionTargetPageId="7" captionText="FIGURE 4. Pneumatophores of Resomia convoluta. A. from St. 67 specimen, B. from St. 94 specimen. Scale 1 mm." httpUri="https://zenodo.org/record/174443/files/figure.png" pageId="7" pageNumber="8">Fig. 4</figureCitation>
<emphasis id="B952E168FFDED4386192FA784CEFAEBD" bold="true" box="[910,931,1485,1511]" pageId="7" pageNumber="8">A</emphasis>
), on the ventral side of the stem.
</paragraph>
<paragraph id="8B993D7AFFDED4386324FA404B77AC28" blockId="7.[264,1323,1090,1906]" pageId="7" pageNumber="8">
<emphasis id="B952E168FFDED4386324FA404EF3AD54" box="[312,447,1525,1550]" italics="true" pageId="7" pageNumber="8">Nectophore</emphasis>
: Twenty six nectophores, at various stages of development, were found with the St. 
<specimenCount id="9D20F6F3FFDED438638AF9A94D62AD6C" box="[406,558,1564,1590]" pageId="7" pageNumber="8" type="generic">67 specimen</specimenCount>
. They measured up to 
<quantity id="4CDE909FFFDED4386124F9A94CEDAD6C" box="[824,929,1564,1590]" metricMagnitude="-2" metricUnit="m" metricValue="1.5699999999999998" pageId="7" pageNumber="8" unit="mm" value="15.7">15.7 mm</quantity>
in width and 
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in length. A photograph of a young one (
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wide, 
<quantity id="4CDE909FFFDED4386109F9F64C3EAD07" box="[789,882,1603,1629]" metricMagnitude="-3" metricUnit="m" metricValue="2.8" pageId="7" pageNumber="8" unit="mm" value="2.8">2.8 mm</quantity>
long) is shown in 
<figureCitation id="131D21FFFFDED4386646F9F64BEDAD07" box="[1114,1185,1603,1629]" captionStart="FIGURE 5" captionStartId="8.[264,367,1447,1471]" captionTargetBox="[313,1218,319,1429]" captionTargetId="figure@8.[291,1299,294,1476]" captionTargetPageId="8" captionText="FIGURE 5. Young nectophores of Resomia convoluta. A. upper view of very young nectophore; B. and C. upper views of developing nectophores; D. upper (left) and lower (right) views of slightly more developed one. A. and D. from Polarstern St. 67, B. and C. from St. 94. Scale 1 mm." httpUri="https://zenodo.org/record/174444/files/figure.png" pageId="7" pageNumber="8">Fig. 5</figureCitation>
<emphasis id="B952E168FFDED43866BEF9F64BFBAD07" bold="true" box="[1186,1207,1603,1629]" pageId="7" pageNumber="8">A</emphasis>
. None of these young nectophores showed any signs of lateral digitate processes, in contrast to those of 
<taxonomicName id="4C2646F9FFDED4386337F9274EAAADF1" box="[299,486,1682,1707]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="7" pageNumber="8" phylum="Cnidaria" rank="species" species="similis">
<emphasis id="B952E168FFDED4386337F9274EAAADF1" box="[299,486,1682,1707]" italics="true" pageId="7" pageNumber="8">Resomia similis</emphasis>
</taxonomicName>
(see 
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). Slightly larger nectophores were found with the St. 
<specimenCount id="9D20F6F3FFDED4386711F9274E3AAD8E" pageId="7" pageNumber="8" type="generic">94 specimen</specimenCount>
(
<figureCitation id="131D21FFFFDED4386394F90F4E83AD8E" box="[392,463,1722,1748]" captionStart="FIGURE 5" captionStartId="8.[264,367,1447,1471]" captionTargetBox="[313,1218,319,1429]" captionTargetId="figure@8.[291,1299,294,1476]" captionTargetPageId="8" captionText="FIGURE 5. Young nectophores of Resomia convoluta. A. upper view of very young nectophore; B. and C. upper views of developing nectophores; D. upper (left) and lower (right) views of slightly more developed one. A. and D. from Polarstern St. 67, B. and C. from St. 94. Scale 1 mm." httpUri="https://zenodo.org/record/174444/files/figure.png" pageId="7" pageNumber="8">Fig. 5</figureCitation>
<emphasis id="B952E168FFDED43863D3F90C4EAEAD89" bold="true" box="[463,482,1721,1747]" pageId="7" pageNumber="8">B</emphasis>
, 
<emphasis id="B952E168FFDED43863EFF90C4D44AD89" bold="true" box="[499,520,1721,1747]" pageId="7" pageNumber="8">C</emphasis>
). These clearly show the upper and lower lateral ridges. The upper facet is much smaller than the lower one, and the pairs of ridges define a broad, oblique lateral facet. 
<collectingCountry id="F3317DEAFFDED43863B9F8BC4E8AAC79" box="[421,454,1801,1827]" name="American Samoa" pageId="7" pageNumber="8">As</collectingCountry>
the upper laterals curved in toward the mid-line they each divided off a short, weak lateral ridge that petered out on the lateral process. The upper laterals then continued to the ostium, leaving a deep median furrow between them.
</paragraph>
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<paragraph id="8B993D7AFFD1D4376314FA124B9EAD5E" blockId="8.[264,1323,1447,1540]" pageId="8" pageNumber="9">
<emphasis id="B952E168FFD1D4376314FA124EC5AEE5" bold="true" box="[264,393,1447,1471]" pageId="8" pageNumber="9">FIGURE 5.</emphasis>
Young nectophores of 
<taxonomicName id="4C2646F9FFD1D4376063FA1D4C06AEE5" box="[639,842,1448,1471]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="8" pageNumber="9" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD1D4376063FA1D4C06AEE5" box="[639,842,1448,1471]" italics="true" pageId="8" pageNumber="9">Resomia convoluta</emphasis>
</taxonomicName>
. 
<emphasis id="B952E168FFD1D437614BFA124C26AEE5" bold="true" box="[855,874,1447,1471]" pageId="8" pageNumber="9">A</emphasis>
. upper view of very young nectophore; 
<emphasis id="B952E168FFD1D437670EFA124A68AEE5" bold="true" box="[1298,1316,1447,1471]" pageId="8" pageNumber="9">B</emphasis>
. and 
<emphasis id="B952E168FFD1D437632BFA7F4E06AEB8" bold="true" box="[311,330,1482,1506]" pageId="8" pageNumber="9">C</emphasis>
. upper views of developing nectophores; 
<emphasis id="B952E168FFD1D437610EFA7F4C69AEB8" bold="true" box="[786,805,1482,1506]" pageId="8" pageNumber="9">D</emphasis>
. upper (left) and lower (right) views of slightly more developed one. 
<emphasis id="B952E168FFD1D43763F1FA594D4CAD5E" bold="true" box="[493,512,1516,1540]" pageId="8" pageNumber="9">A</emphasis>
. and 
<emphasis id="B952E168FFD1D4376027FA594D02AD5E" bold="true" box="[571,590,1516,1540]" pageId="8" pageNumber="9">D</emphasis>
. from 
<emphasis id="B952E168FFD1D437608AFA584C44AD5E" box="[662,776,1517,1540]" italics="true" pageId="8" pageNumber="9">Polarstern</emphasis>
St. 67, 
<emphasis id="B952E168FFD1D4376146FA594C20AD5E" bold="true" box="[858,876,1516,1540]" pageId="8" pageNumber="9">B</emphasis>
. and 
<emphasis id="B952E168FFD1D43761BAFA594CF5AD5E" bold="true" box="[934,953,1516,1540]" pageId="8" pageNumber="9">C</emphasis>
. from St. 94. Scale 1 mm.
</paragraph>
</caption>
<paragraph id="8B993D7AFFD1D4366324F9D54CC9A914" blockId="8.[264,1323,1632,1898]" lastBlockId="9.[264,1323,284,910]" lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
<collectingCountry id="F3317DEAFFD1D4376324F9D54E15AD20" box="[312,345,1632,1658]" name="American Samoa" pageId="8" pageNumber="9">As</collectingCountry>
the nectophores develop further they gradually take on the typical heart-shaped appearance of the young nectophores described by 
<bibRefCitation id="EFB7408BFFD1D4376170F93D4B5EADF8" author="Moser" box="[876,1042,1672,1698]" pageId="8" pageNumber="38" refString="Moser, F. (1925) Die Siphonophoren der Deutschen Sudpolar-Expedition, 1901 - 03. Deutsche Sudpolar-Expedition, 17 (zool 9), 1 - 541." type="journal article" year="1925">Moser (1925)</bibRefCitation>
. The young nectophore shown in 
<figureCitation id="131D21FFFFD1D4376360F9054E8FAD90" box="[380,451,1712,1738]" captionStart="FIGURE 5" captionStartId="8.[264,367,1447,1471]" captionTargetBox="[313,1218,319,1429]" captionTargetId="figure@8.[291,1299,294,1476]" captionTargetPageId="8" captionText="FIGURE 5. Young nectophores of Resomia convoluta. A. upper view of very young nectophore; B. and C. upper views of developing nectophores; D. upper (left) and lower (right) views of slightly more developed one. A. and D. from Polarstern St. 67, B. and C. from St. 94. Scale 1 mm." httpUri="https://zenodo.org/record/174444/files/figure.png" pageId="8" pageNumber="9">Fig. 5</figureCitation>
<emphasis id="B952E168FFD1D43763DFF91A4E94AD93" bold="true" box="[451,472,1711,1737]" pageId="8" pageNumber="9">D</emphasis>
, which measured 
<quantity id="4CDE909FFFD1D43760ADF9054C40AD90" box="[689,780,1712,1738]" metricMagnitude="-3" metricUnit="m" metricValue="5.6" pageId="8" pageNumber="9" unit="mm" value="5.6">5.6 mm</quantity>
in length and 
<quantity id="4CDE909FFFD1D43761A5F9054CB2AD90" box="[953,1022,1712,1738]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="8" pageNumber="9" unit="mm" value="7.0">7 mm</quantity>
in width, clearly showed pairs of upper and lower lateral ridges that united close to the tips of the axial wings, with a narrow, concave, oblique lateral facet between them; the upper facet still being smaller than the lower one. The upper lateral ridges remained far apart for most of their lengths before curving in to join the ostium, leaving a narrow, but quite deep, median furrow between them. The lower lateral ridges petered out on the lower side of the nectophore marginally before reaching the ostium. Slightly swollen lateral processes extended out from the ostium, and then axially along the middle of the lateral facets for a short distance. These processes bore narrow strips of ectodermal cells on their surfaces that, in common with many other species, were probably sites of bioluminescence. 
<collectingCountry id="F3317DEAFFD0D4366623FE094B2CAA8C" box="[1087,1120,444,470]" name="American Samoa" pageId="9" pageNumber="10">As</collectingCountry>
the nectophores enlarged and the upper lateral ridges moved further and further apart, the lateral branches that they gave off axial to the ostium became less and less apparent, such that at the stage shown in 
<figureCitation id="131D21FFFFD0D4366366FD814EF3A914" box="[378,447,564,590]" captionStart="FIGURE 5" captionStartId="8.[264,367,1447,1471]" captionTargetBox="[313,1218,319,1429]" captionTargetId="figure@8.[291,1299,294,1476]" captionTargetPageId="8" captionText="FIGURE 5. Young nectophores of Resomia convoluta. A. upper view of very young nectophore; B. and C. upper views of developing nectophores; D. upper (left) and lower (right) views of slightly more developed one. A. and D. from Polarstern St. 67, B. and C. from St. 94. Scale 1 mm." httpUri="https://zenodo.org/record/174444/files/figure.png" pageId="9" pageNumber="10">Fig. 5</figureCitation>
<emphasis id="B952E168FFD0D43663A2FD864E9FA917" bold="true" box="[446,467,563,589]" pageId="9" pageNumber="10">D</emphasis>
no trace of them could be discerned.
</paragraph>
<paragraph id="8B993D7AFFD0D4366324FDE94BD0A8D4" blockId="9.[264,1323,284,910]" pageId="9" pageNumber="10">
In these maturing nectophores (
<figureCitation id="131D21FFFFD0D43660B0FDE94DBFA92C" box="[684,755,604,630]" captionStart="FIGURE 5" captionStartId="8.[264,367,1447,1471]" captionTargetBox="[313,1218,319,1429]" captionTargetId="figure@8.[291,1299,294,1476]" captionTargetPageId="8" captionText="FIGURE 5. Young nectophores of Resomia convoluta. A. upper view of very young nectophore; B. and C. upper views of developing nectophores; D. upper (left) and lower (right) views of slightly more developed one. A. and D. from Polarstern St. 67, B. and C. from St. 94. Scale 1 mm." httpUri="https://zenodo.org/record/174444/files/figure.png" pageId="9" pageNumber="10">Fig. 5</figureCitation>
<emphasis id="B952E168FFD0D43660EFFDEE4C44A92F" bold="true" box="[755,776,603,629]" pageId="9" pageNumber="10">D</emphasis>
) the nectosac occupied only the ostial third to half of the nectophore. Its axial surface was flat, and there was no sign of any muscle-free area. The ostial opening was quite small, and slightly displaced onto the lower side of the nectophore. There was a minute thrust block over which the pallial canal ran, from the upper to the lower surface of the nectophore. Both ascending and descending pallial canals were present, and of approximately equal length. The pedicular canal arose slightly on the lower side of the nectophore and ran straight to the nectosac. There it gave rise directly to the four radial canals, all of which had straight courses to the ostial ring canal.
</paragraph>
<caption id="DF596DF2FFD0D4366314FAC24E75AEEB" httpUri="https://zenodo.org/record/174445/files/figure.png" pageId="9" pageNumber="10" targetBox="[287,1291,958,1373]" targetPageId="9">
<paragraph id="8B993D7AFFD0D4366314FAC24E75AEEB" blockId="9.[264,1322,1399,1457]" pageId="9" pageNumber="10">
<emphasis id="B952E168FFD0D4366314FAC24EC7AED5" bold="true" box="[264,395,1399,1423]" pageId="9" pageNumber="10">FIGURE 6.</emphasis>
<taxonomicName id="4C2646F9FFD0D4366388FACD4D2EAED5" box="[404,610,1400,1423]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="9" pageNumber="10" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD0D4366388FACD4D2EAED5" box="[404,610,1400,1423]" italics="true" pageId="9" pageNumber="10">Resomia convoluta</emphasis>
</taxonomicName>
. Larger nectophore. Upper (left) and lower (right) views. Scale 2 mm.
</paragraph>
</caption>
<paragraph id="8B993D7AFFD0D4356324F9B74D40AADC" blockId="9.[264,1323,1538,1884]" lastBlockId="10.[264,1323,284,670]" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
An almost fully developed nectophore, 
<quantity id="4CDE909FFFD0D4366119F9B74C04AD46" box="[773,840,1538,1564]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="9" pageNumber="10" unit="mm" value="8.0">8 mm</quantity>
long and 
<quantity id="4CDE909FFFD0D43661A7F9B74B6FAD46" box="[955,1059,1538,1564]" metricMagnitude="-2" metricUnit="m" metricValue="1.08" pageId="9" pageNumber="10" unit="mm" value="10.8">10.8 mm</quantity>
wide, is shown in 
<figureCitation id="131D21FFFFD0D43666E0F9B74E55AD1E" captionStart="FIGURE 6" captionStartId="9.[264,367,1399,1423]" captionTargetBox="[287,1291,958,1373]" captionTargetId="figure@9.[264,1323,949,1393]" captionTargetPageId="9" captionText="FIGURE 6. Resomia convoluta. Larger nectophore. Upper (left) and lower (right) views. Scale 2 mm." httpUri="https://zenodo.org/record/174445/files/figure.png" pageId="9" pageNumber="10">Fig. 6</figureCitation>
. The upper and lower sides were of approximately equal width, with deeply concave lateral facets between the pairs of upper and lower lateral ridges. However, it is likely that this concavity is a preservation artefact. The lower lateral ridges continued to peter out on the lower surface of the nectophore just before reaching the ostium, although in some cases they appeared to reach it. There was no trace whatsoever of the lateral branches from the upper lateral ridges as noted in the youngest nectophores. The lateral processes from the ostium were slightly less prominent than in the younger nectophores, but still very noticeable were the narrow strips of ectodermal cells passing outwards from the points where the lateral radial canals met the ostial ring canal. The nectosac still extended to less than half the length of the nectophore, and its axial surface was flat and without any trace of a muscle-free zone.
</paragraph>
<paragraph id="8B993D7AFFD3D4356324FE214CFBA9C4" blockId="10.[264,1323,284,670]" pageId="10" pageNumber="11">Up to this stage the nectophores had a fairly rigid appearance, and the ridges were clearly distinguishable. However, as they enlarged further, the mesogloea, particularly in the axial wings, became more flaccid, and the ridge pattern less pronounced, although it still could be easily discerned in the well-preserved material available. These large flimsy nectophores were easily damaged. On some there was a semblance of a partial vertical lateral ridge between the upper and lower laterals. However, this was considered to be a fold caused by shrinkage or distortion during preservation.</paragraph>
<caption id="DF596DF2FFD3D4356314F9814B39AD16" box="[264,1141,1588,1612]" httpUri="https://zenodo.org/record/174446/files/figure.png" pageId="10" pageNumber="11" targetBox="[300,1256,728,1587]" targetPageId="10">
<paragraph id="8B993D7AFFD3D4356314F9814B39AD16" blockId="10.[264,1141,1588,1612]" box="[264,1141,1588,1612]" pageId="10" pageNumber="11">
<emphasis id="B952E168FFD3D4356314F9814EC6AD16" bold="true" box="[264,394,1588,1612]" pageId="10" pageNumber="11">FIGURE 7.</emphasis>
Bracts of 
<taxonomicName id="4C2646F9FFD3D43563E5F9804D88AD16" box="[505,708,1589,1612]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="10" pageNumber="11" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD3D43563E5F9804D88AD16" box="[505,708,1589,1612]" italics="true" pageId="10" pageNumber="11">Resomia convoluta</emphasis>
</taxonomicName>
. Scale – 
<emphasis id="B952E168FFD3D435613AF9814C75AD16" bold="true" box="[806,825,1588,1612]" pageId="10" pageNumber="11">A</emphasis>
. 0.5 mm, 
<emphasis id="B952E168FFD3D43561B9F9814CFBAD16" bold="true" box="[933,951,1588,1612]" pageId="10" pageNumber="11">B</emphasis>
. 1 mm, 
<emphasis id="B952E168FFD3D4356613F9814B6EAD16" bold="true" box="[1039,1058,1588,1612]" pageId="10" pageNumber="11">C</emphasis>
. 3 mm.
</paragraph>
</caption>
<paragraph id="8B993D7AFFD3D4356324F9284E8AADEC" blockId="10.[264,1323,1692,1879]" box="[312,454,1692,1719]" pageId="10" pageNumber="11">
<emphasis id="B952E168FFD3D4356324F9284E8AADEC" bold="true" box="[312,454,1692,1719]" pageId="10" pageNumber="11">
<emphasis id="B952E168FFD3D4356324F9284EF0ADED" bold="true" box="[312,444,1693,1719]" italics="true" pageId="10" pageNumber="11">Siphosome</emphasis>
:
</emphasis>
</paragraph>
<paragraph id="8B993D7AFFD3D4346324F9704E76A914" blockId="10.[264,1323,1692,1879]" lastBlockId="11.[264,1323,284,1030]" lastPageId="11" lastPageNumber="12" pageId="10" pageNumber="11">
<emphasis id="B952E168FFD3D4356324F9704E35AD84" box="[312,377,1733,1758]" italics="true" pageId="10" pageNumber="11">Bract</emphasis>
: (
<figureCitation id="131D21FFFFD3D4356389F9704EAEAD85" box="[405,482,1733,1759]" captionStart="FIGURE 7" captionStartId="10.[264,367,1588,1612]" captionTargetBox="[300,1256,728,1587]" captionTargetId="figure@10.[291,1299,694,1641]" captionTargetPageId="10" captionText="FIGURE 7. Bracts of Resomia convoluta. Scale – A. 0.5 mm, B. 1 mm, C. 3 mm." httpUri="https://zenodo.org/record/174446/files/figure.png" pageId="10" pageNumber="11">Fig. 7</figureCitation>
). The bracts were quadrangular in shape, with rounded corners, and measured up to 
<quantity id="4CDE909FFFD3D43563DFF9584D5AAC5D" box="[451,534,1773,1799]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="10" pageNumber="11" unit="mm" value="10.0">10 mm</quantity>
in length and 
<quantity id="4CDE909FFFD3D43560A3F9584C4FAC5D" box="[703,771,1773,1799]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="10" pageNumber="11" unit="mm" value="8.0">8 mm</quantity>
in greatest width. The largest bracts were very flimsy. There was a transverse ridge across the upper side of the bract close to its distal end that delineated a triangular distal facet. In the younger bracts (
<figureCitation id="131D21FFFFD3D43561C6F8884B52AC0D" box="[986,1054,1853,1879]" captionStart="FIGURE 7" captionStartId="10.[264,367,1588,1612]" captionTargetBox="[300,1256,728,1587]" captionTargetId="figure@10.[291,1299,694,1641]" captionTargetPageId="10" captionText="FIGURE 7. Bracts of Resomia convoluta. Scale – A. 0.5 mm, B. 1 mm, C. 3 mm." httpUri="https://zenodo.org/record/174446/files/figure.png" pageId="10" pageNumber="11">Fig. 7</figureCitation>
<emphasis id="B952E168FFD3D4356603F8894B78AC0C" bold="true" box="[1055,1076,1852,1878]" pageId="10" pageNumber="11">A</emphasis>
), this ridge stretched from one side of the bract to the other, but did not overhang the distal facet. On intermediate sized bracts (
<figureCitation id="131D21FFFFD2D4346022FEF14DC8AA04" box="[574,644,324,350]" captionStart="FIGURE 7" captionStartId="10.[264,367,1588,1612]" captionTargetBox="[300,1256,728,1587]" captionTargetId="figure@10.[291,1299,694,1641]" captionTargetPageId="10" captionText="FIGURE 7. Bracts of Resomia convoluta. Scale – A. 0.5 mm, B. 1 mm, C. 3 mm." httpUri="https://zenodo.org/record/174446/files/figure.png" pageId="11" pageNumber="12">Fig. 7</figureCitation>
<emphasis id="B952E168FFD2D4346099FEF64DD4AA07" bold="true" box="[645,664,323,349]" pageId="11" pageNumber="12">B</emphasis>
) the connections to the sides of the bract were weak or totally absent, and the central part of the ridge slightly overhung the distal facet. In the largest bracts (
<figureCitation id="131D21FFFFD2D43463A8FE214EB6AAF4" box="[436,506,404,430]" captionStart="FIGURE 7" captionStartId="10.[264,367,1588,1612]" captionTargetBox="[300,1256,728,1587]" captionTargetId="figure@10.[291,1299,694,1641]" captionTargetPageId="10" captionText="FIGURE 7. Bracts of Resomia convoluta. Scale – A. 0.5 mm, B. 1 mm, C. 3 mm." httpUri="https://zenodo.org/record/174446/files/figure.png" pageId="11" pageNumber="12">Fig. 7</figureCitation>
(C)) the transverse ridge usually did not connect with the sides of the bract, while it overhung the distal facet more extensively. The bract was thickest in the middle region of the transverse ridge and tapered down gradually toward the proximal end. Toward the distal end the bract rapidly lost depth on its upper side, but not on its lower one.
</paragraph>
<paragraph id="8B993D7AFFD2D4346324FDE94E39AF5C" blockId="11.[264,1323,284,1030]" pageId="11" pageNumber="12">
In the youngest bracts, the proximal end of the bracteal canal extended a short distance on to the upper side of the bract, before running over on to the lower side and then directly to the distal tip. It terminated below a distinctive cluster of nematocysts. The canal had very thick walls. At its proximal and distal ends the canal was narrow, but in its middle region its cavity was extensive, and the walls had a distinctive honeycomb of large endodermal cells. In intermediate sized bracts (
<figureCitation id="131D21FFFFD2D4346127FC914CCFA864" box="[827,899,804,830]" captionStart="FIGURE 7" captionStartId="10.[264,367,1588,1612]" captionTargetBox="[300,1256,728,1587]" captionTargetId="figure@10.[291,1299,694,1641]" captionTargetPageId="10" captionText="FIGURE 7. Bracts of Resomia convoluta. Scale – A. 0.5 mm, B. 1 mm, C. 3 mm." httpUri="https://zenodo.org/record/174446/files/figure.png" pageId="11" pageNumber="12">Fig. 7</figureCitation>
<emphasis id="B952E168FFD2D434619EFC914CD9A864" bold="true" box="[898,917,804,830]" pageId="11" pageNumber="12">B</emphasis>
) the canal still retained thickened walls except towards its distal end. Proximally it extended slightly onto the upper side of the bract, while distally it ended below a relatively less prominent cluster of nematocysts. In the oldest bracts only the proximal part of the canal, in the region of attachment to the stem, remained slightly thickened and frequently it did not extend on to the upper side of the bract.
</paragraph>
<caption id="DF596DF2FFD2D4346314F92B4B69ADEC" box="[264,1061,1694,1718]" httpUri="https://zenodo.org/record/174447/files/figure.png" pageId="11" pageNumber="12" targetBox="[409,1177,1086,1670]" targetPageId="11">
<paragraph id="8B993D7AFFD2D4346314F92B4B69ADEC" blockId="11.[264,1061,1694,1718]" box="[264,1061,1694,1718]" pageId="11" pageNumber="12">
<emphasis id="B952E168FFD2D4346314F92B4EC7ADEC" bold="true" box="[264,395,1694,1718]" pageId="11" pageNumber="12">FIGURE 8.</emphasis>
Nematocysts from bracts of 
<taxonomicName id="4C2646F9FFD2D43460A3F92A4CC7ADEC" box="[703,907,1695,1718]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="11" pageNumber="12" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD2D43460A3F92A4CC7ADEC" box="[703,907,1695,1718]" italics="true" pageId="11" pageNumber="12">Resomia convoluta</emphasis>
</taxonomicName>
. Scale 50 µm.
</paragraph>
</caption>
<paragraph id="8B993D7AFFD2D4336324F8B24B6CAAF4" blockId="11.[264,1323,1799,1905]" lastBlockId="12.[264,1323,284,1150]" lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12">
The cluster of nematocysts was always positioned at the distal tip of the bract. In the youngest bracts there were approximately 20–30 nematocysts, all of the same kind. In the material available, this number decreased as the bract increased in size, although it is not clear whether this decrease is truly an ontogenetic pattern or whether the losses occurred through abrasion or preservation. The nematocyst capsules (
<figureCitation id="131D21FFFFD5D43361FDFEF14B66AA04" box="[993,1066,324,350]" captionStart="FIGURE 8" captionStartId="11.[264,367,1694,1718]" captionTargetBox="[409,1177,1086,1670]" captionTargetId="figure@11.[409,1177,1086,1670]" captionTargetPageId="11" captionText="FIGURE 8. Nematocysts from bracts of Resomia convoluta. Scale 50 µm." httpUri="https://zenodo.org/record/174447/files/figure.png" pageId="12" pageNumber="13">Fig. 8</figureCitation>
) measured 82 µm in length and 25 µm in width. The shaft measured 78 µm in length and had a few small barbs at its distal end. They are most probably microbasic mastigophores.
</paragraph>
<paragraph id="8B993D7AFFD5D4336324FE094E3DA864" blockId="12.[264,1323,284,1150]" pageId="12" pageNumber="13">
<emphasis id="B952E168FFD5D4336324FE094EC0AA8F" box="[312,396,444,469]" italics="true" pageId="12" pageNumber="13">Palpon</emphasis>
: The palpons (
<figureCitation id="131D21FFFFD5D433605FFE094DC0AA8C" box="[579,652,444,470]" captionStart="FIGURE 9" captionStartId="12.[264,367,1830,1854]" captionText="FIGURE 9. Palpons of Resomia convoluta. Scale 1 mm." pageId="12" pageNumber="13">Fig. 9</figureCitation>
) measured up to 
<quantity id="4CDE909FFFD5D433617DFE094CE4AA8C" box="[865,936,444,470]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="12" pageNumber="13" unit="mm" value="8.0">8 mm</quantity>
in length and 
<quantity id="4CDE909FFFD5D4336645FE094BFAAA8C" box="[1113,1206,444,470]" metricMagnitude="-3" metricUnit="m" metricValue="2.7" pageId="12" pageNumber="13" unit="mm" value="2.7">2.7 mm</quantity>
in width, although the younger ones remained relatively narrow. Over 80 were found with the St. 
<specimenCount id="9D20F6F3FFD5D4336711FE514E36A97C" pageId="12" pageNumber="13" type="generic">67 specimen</specimenCount>
, together with about 12 gastrozooids, indicating that each cormidium bore at least six palpons. They were largely featureless, the younger ones often transparent, while the older ones were filled with a dense, granulose substance. The surface was covered in a dense array of patches of 6–12 ectodermal cells. There was a small proboscis at the distal end, and a constricted process at the proximal end from which the palpacle arose. The latter was long and narrow, without annulations, although at irregular intervals there were small constrictions. No nematocysts were discerned anywhere on the palpon or the palpacle.
</paragraph>
<paragraph id="8B993D7AFFD5D4336324FCF94E9EAF24" blockId="12.[264,1323,284,1150]" pageId="12" pageNumber="13">
<emphasis id="B952E168FFD5D4336324FCF94D2BA83F" box="[312,615,844,869]" italics="true" pageId="12" pageNumber="13">Gastrozooid and tentacle</emphasis>
: The gastrozooids (
<figureCitation id="131D21FFFFD5D4336142FCF94CFBA83C" box="[862,951,844,870]" captionStart="FIGURE 10" captionStartId="13.[264,367,969,993]" captionTargetBox="[313,1268,331,934]" captionTargetId="figure@13.[313,1273,326,945]" captionTargetPageId="13" captionText="FIGURE 10. Gastrozooids of Resomia convoluta. Scale 1 mm." httpUri="https://zenodo.org/record/174448/files/figure.png" pageId="12" pageNumber="13">Fig. 10</figureCitation>
) were attached directly to the siphosomal stem, and measured up to 
<quantity id="4CDE909FFFD5D43360E5FCC14C10A8D4" box="[761,860,884,910]" metricMagnitude="-3" metricUnit="m" metricValue="7.6" pageId="12" pageNumber="13" unit="mm" value="7.6">7.6 mm</quantity>
in length and 
<quantity id="4CDE909FFFD5D4336639FCC14BC4A8D4" box="[1061,1160,884,910]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" pageId="12" pageNumber="13" unit="mm" value="1.8">1.8 mm</quantity>
in diameter. Frequently each of the three main regions, the basigaster, stomach, and proboscis, occupied approximately one third of the total length of the gastrozooid, although the proboscis region could be very variable in shape. However, in one case (
<figureCitation id="131D21FFFFD5D4336646FC594BFDAF5C" box="[1114,1201,1004,1030]" captionStart="FIGURE 10" captionStartId="13.[264,367,969,993]" captionTargetBox="[313,1268,331,934]" captionTargetId="figure@13.[313,1273,326,945]" captionTargetPageId="13" captionText="FIGURE 10. Gastrozooids of Resomia convoluta. Scale 1 mm." httpUri="https://zenodo.org/record/174448/files/figure.png" pageId="12" pageNumber="13">Fig. 10</figureCitation>
, right) the basigaster was greatly enlarged and occupied almost half the length of the gastrozooid, but still was relatively narrow. Twelve so-called longitudinal liver stripes were present in the proboscis region.
</paragraph>
<caption id="DF596DF2FFD5D4336314F8934C2BAC64" box="[264,871,1830,1854]" pageId="12" pageNumber="13">
<paragraph id="8B993D7AFFD5D4336314F8934C2BAC64" blockId="12.[264,871,1830,1854]" box="[264,871,1830,1854]" pageId="12" pageNumber="13">
<emphasis id="B952E168FFD5D4336314F8934EC7AC64" bold="true" box="[264,395,1830,1854]" pageId="12" pageNumber="13">FIGURE 9.</emphasis>
Palpons of 
<taxonomicName id="4C2646F9FFD5D4336015F8924D99AC64" box="[521,725,1831,1854]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="12" pageNumber="13" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD5D4336015F8924D99AC64" box="[521,725,1831,1854]" italics="true" pageId="12" pageNumber="13">Resomia convoluta</emphasis>
</taxonomicName>
. Scale 1 mm.
</paragraph>
</caption>
<caption id="DF596DF2FFD4D4326314FC7C4CE1A8BA" box="[264,941,969,993]" httpUri="https://zenodo.org/record/174448/files/figure.png" pageId="13" pageNumber="14" targetBox="[313,1268,331,934]" targetPageId="13">
<paragraph id="8B993D7AFFD4D4326314FC7C4CE1A8BA" blockId="13.[264,941,969,993]" box="[264,941,969,993]" pageId="13" pageNumber="14">
<emphasis id="B952E168FFD4D4326314FC7C4EDBA8BB" bold="true" box="[264,407,969,993]" pageId="13" pageNumber="14">FIGURE 10.</emphasis>
Gastrozooids of 
<taxonomicName id="4C2646F9FFD4D4326053FC7F4C56A8BB" box="[591,794,970,993]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="13" pageNumber="14" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD4D4326053FC7F4C56A8BB" box="[591,794,970,993]" italics="true" pageId="13" pageNumber="14">Resomia convoluta</emphasis>
</taxonomicName>
. Scale 1 mm.
</paragraph>
</caption>
<paragraph id="8B993D7AFFD4D4316324FB914D6BAADF" blockId="13.[264,1323,1060,1881]" lastBlockId="14.[264,1323,284,1899]" lastPageId="14" lastPageNumber="15" pageId="13" pageNumber="14">
The annulated tentacle arose at the very base of the gastrozooid and bore two basic forms of tentilla (
<figureCitation id="131D21FFFFD4D43263F5FBF94D0AAF3C" box="[489,582,1100,1126]" captionStart="FIGURE 10" captionStartId="13.[264,367,969,993]" captionTargetBox="[313,1268,331,934]" captionTargetId="figure@13.[313,1273,326,945]" captionTargetPageId="13" captionText="FIGURE 10. Gastrozooids of Resomia convoluta. Scale 1 mm." httpUri="https://zenodo.org/record/174448/files/figure.png" pageId="13" pageNumber="14">Fig. 10</figureCitation>
, 
<figureCitation id="131D21FFFFD4D4326045FBF94D39AF3C" box="[601,629,1100,1126]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">11</figureCitation>
<emphasis id="B952E168FFD4D4326069FBFE4DC6AF3F" bold="true" box="[629,650,1099,1125]" pageId="13" pageNumber="14">A</emphasis>
), which arose, as usual, at the tentacular nodes. The youngest, proximal tentilla (
<figureCitation id="131D21FFFFD4D432604AFBC14DE6AFD4" box="[598,682,1140,1166]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D43260B7FBC64D9AAFD7" bold="true" box="[683,726,1139,1165]" pageId="13" pageNumber="14">B a</emphasis>
) were simple straight tubes that, as they enlarged, began to differentiate their three basic regions, the pedicle, cnidoband, and terminal filament. The cnidoband then began to coil up into a loose spiral (
<figureCitation id="131D21FFFFD4D4326601FB764B3DAF87" box="[1053,1137,1219,1245]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D432666EFB764BF0AF87" bold="true" box="[1138,1212,1219,1245]" pageId="13" pageNumber="14">B a, b</emphasis>
). 
<collectingCountry id="F3317DEAFFD4D43266CBFB764BB4AF87" box="[1239,1272,1219,1245]" name="American Samoa" pageId="13" pageNumber="14">As</collectingCountry>
this spiral tightened an involucrum began to develop at the very base of the cnidoband (
<figureCitation id="131D21FFFFD4D43266E7FB5E4E6FAE76" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D4326338FAA74E03AE76" bold="true" box="[292,335,1298,1324]" pageId="13" pageNumber="14">B c</emphasis>
, 
<emphasis id="B952E168FFD4D432637CFAA74E3CAE76" bold="true" box="[352,368,1298,1324]" pageId="13" pageNumber="14">d</emphasis>
— arrowed). This involucrum gradually extended distally (
<figureCitation id="131D21FFFFD4D4326622FAA74BDFAE76" box="[1086,1171,1298,1324]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D4326688FAA74B9AAE76" bold="true" box="[1172,1238,1298,1324]" pageId="13" pageNumber="14">B e -g</emphasis>
— the distal end of the involucrum is marked by a white line) so as to almost or entirely cover the now tightly coiled cnidoband. At this point of development of the tentilla something occurred that has not been previously described for any siphonophore. The cnidoband began to unwind (
<figureCitation id="131D21FFFFD4D43263C6FA074D60AE96" box="[474,556,1458,1484]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D4326030FA044D1BAE91" bold="true" box="[556,599,1457,1483]" pageId="13" pageNumber="14">B h</emphasis>
) and completely change its topography such that it eventually arranged itself into three straight zigzagged sections (
<figureCitation id="131D21FFFFD4D43261B0FA6C4B49AEA9" box="[940,1029,1497,1523]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D432661AFA6C4B7CAEA9" bold="true" box="[1030,1072,1497,1523]" pageId="13" pageNumber="14">B i</emphasis>
). On this particular tentacle this transition apparently took place when the involucrum had almost, but not entirely, covered the cnidoband. During the transition parts of the cnidoband projected distally beyond the involucrum, and once the transition was complete the involucrum still did not entirely cover the now zigzagged cnidoband. The tentillum that was the third from the distal end of the tentacle (
<figureCitation id="131D21FFFFD4D432606FF9154D84ADE0" box="[627,712,1696,1722]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D43260D5F92A4DBDADE3" bold="true" box="[713,753,1695,1721]" pageId="13" pageNumber="14">B j</emphasis>
) had lost its involucrum and clearly shows the overall arrangement of the three main zigzagged sections of the cnidoband, with the socalled “double elastic band” connecting its proximal and distal ends. The two distal most tentilla (
<figureCitation id="131D21FFFFD4D432636FF8A24E83AC6B" box="[371,463,1815,1841]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="13" pageNumber="14">Fig. 11</figureCitation>
<emphasis id="B952E168FFD4D43263CCF8A24D57AC6B" bold="true" box="[464,539,1815,1841]" pageId="13" pageNumber="14">B k–l</emphasis>
) show that the involucrum continued to extend distally and eventually covered the whole of the cnidoband and, indeed, extended well beyond it so that the terminal filament could be withdrawn entirely within it. The distal end of the cnidoband turned back proximally to form the beginnings of a fourth zag, and the terminal filament arose at its end.
</paragraph>
<paragraph id="8B993D7AFFD7D4316324FE264D1AA8E8" blockId="14.[264,1323,284,1899]" pageId="14" pageNumber="15">
Unfortunately, the tentacle illustrated in 
<figureCitation id="131D21FFFFD7D4316103FE264C38AAF7" box="[799,884,403,429]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="14" pageNumber="15">Fig. 11</figureCitation>
was the only one where a tentillum was found to be in the transitional stage between the more proximal ones with a coiled cnidoband and the more distal ones with a zigzagged cnidoband. In addition, it is uncertain whether the transition begins before or after the cnidoband is completely enveloped by the involucrum. The most advanced pre-transitional tentillum was found to have the involucrum covering all of the cnidoband, together with the base of the terminal filament. However, it is clear that a transition between the two forms of tentilla does occur, rather than a succession of the zigzagged 
<typeStatus id="549D83D8FFD7D43160BFFD1C4D99A999" box="[675,725,681,707]" pageId="14" pageNumber="15">type</typeStatus>
being developed first followed by a switch over to the development of the coiled 
<typeStatus id="549D83D8FFD7D4316077FD644DD1A9B1" box="[619,669,721,747]" pageId="14" pageNumber="15">type</typeStatus>
as the gastrozooid and tentacle mature. In that case one would expect the more anterior gastrozooids to have tentacles bearing only the zigzagged form. However, all of the gastrozooids, including one still attached toward the anterior end of the siphosome, bore tentacles with coiled tentilla at their proximal ends, and half of them had zigzagged tentilla distally. In addition, broken off pieces of tentacle generally bore only zigzagged tentilla.
</paragraph>
<paragraph id="8B993D7AFFD7D4316324FC0A4C70AD5C" blockId="14.[264,1323,284,1899]" pageId="14" pageNumber="15">
Four 
<typeStatus id="549D83D8FFD7D4316360FC0A4EF6A883" box="[380,442,959,985]" pageId="14" pageNumber="15">types</typeStatus>
of nematocysts were found to be present on the tentilla. Haplonemes, probably homotrichous anisorhizas, and heteronemes (microbasic mastigophores) were present on the cnidoband, while what were presumed to be desmonemes and acrophores were found in the terminal filament, although no discharged ones were found. However, these last two 
<typeStatus id="549D83D8FFD7D43163AFFBEB4EBDAF22" box="[435,497,1118,1144]" pageId="14" pageNumber="15">types</typeStatus>
of nematocysts are quite typically found on the terminal filaments of physonect siphonophores. About 300 mastigophores, measuring 80–106 
<date id="FF981BBAFFD7D43166B7FB334BA5AFFA" box="[1195,1257,1158,1184]" pageId="14" pageNumber="15" value="1921-10">x 21</date>
µm, werefound at the proximal end of the cnidoband, flanking the haplonemes. They were present on the first two or three spirals of the coiled cnidobands and along the first zag of the zigzagged cnidobands. Their density was greatest proximally and diminished distally, becoming widely spaced apart before they disappeared entirely. Innumerable haplonemes, generally of two sizes (53– 
<date id="FF981BBAFFD7D4316054FAF84D29AE3D" box="[584,613,1357,1383]" pageId="14" pageNumber="15" value="1958-10-08">58</date>
x 8 µm and 80– 
<date id="FF981BBAFFD7D4316136FAF84C0AAE3D" box="[810,838,1357,1383]" pageId="14" pageNumber="15" value="1985-10">85</date>
x 10.5 µm), were present throughout the cnidoband and arranged into several rows. Both the presumed desmonemes (
<date id="FF981BBAFFD7D43166D8FAC14A67AED4" box="[1220,1323,1396,1422]" pageId="14" pageNumber="15" value="1925-10-26">25–26 x</date>
17.5–18.5 µm) and acrophores (24– 
<date id="FF981BBAFFD7D43160B2FA294D87AEEC" box="[686,715,1436,1462]" pageId="14" pageNumber="15" value="1928-10-08">28</date>
x 8–9.25 µm) varied in size, and the latter were far more abundant than the former but, because the terminal filaments were tightly coiled, their exact arrangement could not be elucidated.
</paragraph>
<paragraph id="8B993D7AFFD7D4316324F9A64BD0AC31" blockId="14.[264,1323,284,1899]" pageId="14" pageNumber="15">
<bibRefCitation id="EFB7408BFFD7D4316324F9A64E90AD77" author="Moser" box="[312,476,1555,1581]" pageId="14" pageNumber="38" refString="Moser, F. (1925) Die Siphonophoren der Deutschen Sudpolar-Expedition, 1901 - 03. Deutsche Sudpolar-Expedition, 17 (zool 9), 1 - 541." type="journal article" year="1925">Moser (1925)</bibRefCitation>
clearly illustrated the arrangement of the cnidoband in the zigzagged forms of tentilla (see 
<figureCitation id="131D21FFFFD7D4316019F98E4D05AD0F" box="[517,585,1595,1621]" captionStart="FIGURE 1" captionStartId="1.[272,375,1544,1568]" captionTargetBox="[282,1300,723,1486]" captionTargetId="figure@1.[267,792,698,1517]" captionTargetPageId="1" captionText="FIGURE 1. Optical section of a tentillum of FIGURE 2. A gastrozooid and part of its Stephanomia convoluta from the lateral side tentacle, with several tentilla, of Stephanomia (from Moser 1925, Plate. XXXII, fig. 4). convoluta. One of the tentilla is rolled up into a Cn. pa. — Rod-shaped nematocysts; Cn. py. spiral and has lost its involucrum. (From Moser — bean-shaped nematocysts; Cp. — 1925, Plate XXXII, Fig. 3)." httpUri="https://zenodo.org/record/174441/files/figure.png" pageId="14" pageNumber="15">Fig. 1</figureCitation>
). She showed that the nematocyst-bearing side of the first zag lay against that of the second, while that of the third lay on the outer surface of the cnidoband. She also clearly showed the strong and doubled elastic band running up the exterior side of the first zag. She believed that a much reduced elastic band was present in the second and third zags, but this may not be the case. In the spiralled cnidobands the double elastic band clearly was present throughout the length of the cnidoband, but in the zigzagged ones it directly connected the proximal and distal ends of the cnidoband (see 
<figureCitation id="131D21FFFFD7D4316314F8E44E15AC31" box="[264,345,1873,1899]" captionStart="FIGURE 11" captionStartId="15.[264,367,1805,1829]" captionTargetBox="[285,1309,329,1770]" captionTargetId="figure@15.[285,1310,329,1780]" captionTargetPageId="15" captionText="FIGURE 11. Resomia convoluta. A. A single tentacle with its various forms of tentilla (a-l, x). Scale 1 mm. B. Individual tentilla (a-l) removed from the tentacle shown in A. (x not illustrated). Sizes of tentilla can be gauged from A." httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="14" pageNumber="15">Fig. 11</figureCitation>
<emphasis id="B952E168FFD7D431637DF8E44ECAAC31" bold="true" box="[353,390,1873,1899]" pageId="14" pageNumber="15">B j</emphasis>
) and, thus, could not be present between the second and third zags.
</paragraph>
<caption id="DF596DF2FFD6D4306314F8B84DE5AC30" httpUri="https://zenodo.org/record/174449/files/figure.png" pageId="15" pageNumber="16" targetBox="[285,1309,329,1770]" targetPageId="15">
<paragraph id="8B993D7AFFD6D4306314F8B84DE5AC30" blockId="15.[264,1323,1805,1899]" pageId="15" pageNumber="16">
<emphasis id="B952E168FFD6D4306314F8B84ED5AC7F" bold="true" box="[264,409,1805,1829]" pageId="15" pageNumber="16">FIGURE 11.</emphasis>
<taxonomicName id="4C2646F9FFD6D43063BFF8BB4D3DAC7F" box="[419,625,1806,1829]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="15" pageNumber="16" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFD6D43063BFF8BB4D3DAC7F" box="[419,625,1806,1829]" italics="true" pageId="15" pageNumber="16">Resomia convoluta</emphasis>
</taxonomicName>
. 
<emphasis id="B952E168FFD6D430609EF8B84DD9AC7F" bold="true" box="[642,661,1805,1829]" pageId="15" pageNumber="16">A</emphasis>
. A single tentacle with its various forms of tentilla (
<emphasis id="B952E168FFD6D43066FCF8B84A57AC7F" bold="true" box="[1248,1307,1805,1829]" pageId="15" pageNumber="16">a-l, x</emphasis>
). Scale 1 mm. 
<emphasis id="B952E168FFD6D430638BF8854EE5AC12" bold="true" box="[407,425,1840,1864]" pageId="15" pageNumber="16">B</emphasis>
. Individual tentilla (
<emphasis id="B952E168FFD6D4306094F8854DE9AC12" bold="true" box="[648,677,1840,1864]" pageId="15" pageNumber="16">a-l</emphasis>
) removed from the tentacle shown in 
<emphasis id="B952E168FFD6D430665AF8854B15AC12" bold="true" box="[1094,1113,1840,1864]" pageId="15" pageNumber="16">A</emphasis>
. (
<emphasis id="B952E168FFD6D430666DF8854B32AC12" bold="true" box="[1137,1150,1840,1864]" pageId="15" pageNumber="16">x</emphasis>
not illustrated). Sizes of tentilla can be gauged from 
<emphasis id="B952E168FFD6D4306092F8E64DEDAC31" bold="true" box="[654,673,1875,1899]" pageId="15" pageNumber="16">A</emphasis>
.
</paragraph>
</caption>
<paragraph id="8B993D7AFFC9D42F6324FEA94B9AA97C" blockId="16.[264,1323,284,1270]" pageId="16" pageNumber="17">
<emphasis id="B952E168FFC9D42F6324FEA94E84AA6F" box="[312,456,284,309]" italics="true" pageId="16" pageNumber="17">Gonophores</emphasis>
: Unfortunately, only the anterior part of the siphosome of both 
<emphasis id="B952E168FFC9D42F66B1FEA94A67AA6F" box="[1197,1323,284,309]" italics="true" pageId="16" pageNumber="17">Polarstern</emphasis>
specimens was preserved, and no ripe gonophores could be found. Groups of small, rounded buds were present, some of which were clearly destined to become female gonophores as the nucleus of each could clearly be seen. However, no buds of male ones could be discerned, although this does not necessarily mean that they were absent. However, as noted below, some of Totton’s material that has been re-examined clearly showed that both male and female gonophores were present on the same specimen.
</paragraph>
</subSubSection>
<subSubSection id="C33C6EF1FFC9D42F6324FD814ED8AFAC" pageId="16" pageNumber="17" type="distribution">
<paragraph id="8B993D7AFFC9D42F6324FD814BCCA884" blockId="16.[264,1323,284,1270]" pageId="16" pageNumber="17">
<emphasis id="B952E168FFC9D42F6324FD814E8BA917" box="[312,455,564,589]" italics="true" pageId="16" pageNumber="17">Distribution</emphasis>
: There are very few published records of 
<taxonomicName id="4C2646F9FFC9D42F61AFFD814BDFA917" box="[947,1171,564,589]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFC9D42F61AFFD814BDFA917" box="[947,1171,564,589]" italics="true" pageId="16" pageNumber="17">Resomia convoluta</emphasis>
</taxonomicName>
, all from the 
<collectingCountry id="F3317DEAFFC9D42F6314FDE94E39A92C" box="[264,373,604,630]" name="Antarctica" pageId="16" pageNumber="17">Antarctic</collectingCountry>
Ocean apart from an extremely unbelievable one from Baja California (
<bibRefCitation id="EFB7408BFFC9D42F66DCFDE94E0BA9C4" author="Alvarino" pageId="16" pageNumber="37" refString="Alvarino, A. (1991) Abundancia y distribucion batimetrica diurna y nocturna de los sifonoforos durante las cuatro estaciones del ano 1969, en aguas de California y Baja California. Investigionas Marinas CICIMAR, 6, 1 - 37." type="journal article" year="1991">Alvariño 1991</bibRefCitation>
). Nonetheless, it is possible that this latter record may refer to another 
<taxonomicName id="4C2646F9FFC9D42F66D9FD314A66A9C7" box="[1221,1322,644,669]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B952E168FFC9D42F66D9FD314A66A9C7" box="[1221,1322,644,669]" italics="true" pageId="16" pageNumber="17">Resomia</emphasis>
</taxonomicName>
species that has yet to be described (Haddock and Pugh, in preparation). The original 
<taxonomicName id="4C2646F9FFC9D42F670DFD194E30A9B7" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="convoluta">
<emphasis id="B952E168FFC9D42F670DFD194E30A9B7" italics="true" pageId="16" pageNumber="17">R. convoluta</emphasis>
</taxonomicName>
material came from Posadovsky Bay (c. 65°S, 89°E) from depths of 400 (2 records) and 
<quantity id="4CDE909FFFC9D42F63BEFD494EB2A84C" box="[418,510,764,790]" metricMagnitude="3" metricUnit="m" metricValue="3.243" pageId="16" pageNumber="17" unit="m" value="3243.0">3243 m</quantity>
, although it is likely that open nets were used. There were no further records until 
<bibRefCitation id="EFB7408BFFC9D42F63BAFC914D05A864" author="Totton" box="[422,585,804,830]" pageId="16" pageNumber="39" refString="Totton, A. K. (1965) A Synopsis of the Siphonophora. British Museum (Natural History), London, 230 pp, 40 plates." type="book" year="1965">Totton (1965)</bibRefCitation>
mentioned that the species had been collected at two or three 
<emphasis id="B952E168FFC9D42F6314FCF94E33A83F" box="[264,383,844,869]" italics="true" pageId="16" pageNumber="17">Discovery</emphasis>
stations. However, the 
<taxonomicName id="4C2646F9FFC9D42F60AFFCF94C54A83F" box="[691,792,844,869]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B952E168FFC9D42F60AFFCF94C54A83F" box="[691,792,844,869]" italics="true" pageId="16" pageNumber="17">Resomia</emphasis>
</taxonomicName>
material presently in the Natural History Museum, London, all of which Totton had looked at, actually comes from at least eight 
<emphasis id="B952E168FFC9D42F6314FC294E33A8EF" box="[264,383,924,949]" italics="true" pageId="16" pageNumber="17">Discovery</emphasis>
stations. In addition, Totton believed that this material represented more than one 
<taxonomicName id="4C2646F9FFC9D42F6326FC714ED3A887" box="[314,415,964,989]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B952E168FFC9D42F6326FC714ED3A887" box="[314,415,964,989]" italics="true" pageId="16" pageNumber="17">Resomia</emphasis>
</taxonomicName>
species. These points are considered further in the Discussion.
</paragraph>
<paragraph id="8B993D7AFFC9D42F6324FC594ED8AFAC" blockId="16.[264,1323,284,1270]" pageId="16" pageNumber="17">
More recently, records for nectophores of 
<taxonomicName id="4C2646F9FFC9D42F6131FC594B5DAF5C" authority="(Moseria)" baseAuthorityName="Moseria" box="[813,1041,1004,1030]" class="Hydrozoa" family="Resomiidae" genus="Resomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B952E168FFC9D42F6131FC594CDEAF5F" box="[813,914,1004,1029]" italics="true" pageId="16" pageNumber="17">Resomia</emphasis>
(
<emphasis id="B952E168FFC9D42F61B9FC594B4BAF5F" box="[933,1031,1004,1029]" italics="true" pageId="16" pageNumber="17">Moseria</emphasis>
)
</taxonomicName>
sp. have been given by 
<bibRefCitation id="EFB7408BFFC9D42F6314FBA14E81AF74" author="Margulis" box="[264,461,1044,1070]" pageId="16" pageNumber="38" refString="Margulis, R. Ya. (1992) Siphonophora from the Indian Sector of the Antarctic. In: The Antarctic. The Committee Reports No. 30. Nauka, Moscow, 125 - 134. (In Russian)" type="book chapter" year="1992">Margulis (1992)</bibRefCitation>
, from two stations in the Commonwealth Sea (60+°S, 55–90°E; depth ranges 100–50 and 2000– 
<quantity id="4CDE909FFFC9D42F602BFB894DDEAF0C" box="[567,658,1084,1110]" metricMagnitude="3" metricUnit="m" metricValue="1.0" pageId="16" pageNumber="17" unit="m" value="1000.0">1000 m</quantity>
); Pagès 
<emphasis id="B952E168FFC9D42F60EEFB894C61AF0F" box="[754,813,1084,1109]" italics="true" pageId="16" pageNumber="17">et al.</emphasis>
(1994) and 
<bibRefCitation id="EFB7408BFFC9D42F61A6FB894BC2AF0C" box="[954,1166,1084,1110]" pageId="16" pageNumber="39" refString="Pugh, P. R., Pages, F. &amp; Boorman, B. (1997) Vertical distribution and abundance of pelagic cnidarians in the eastern Weddell Sea, Antarctica. Journal of the Marine Biological Association of the United Kingdom, 77, 341 - 360." type="journal article">
Pugh 
<emphasis id="B952E168FFC9D42F61E1FB894B74AF0F" box="[1021,1080,1084,1109]" italics="true" pageId="16" pageNumber="17">et al.</emphasis>
(1997)
</bibRefCitation>
from various stations and depths in the Atlantic sector of the Subantarctic and 
<collectingCountry id="F3317DEAFFC9D42F6615FBD14B36AF24" box="[1033,1146,1124,1150]" name="Antarctica" pageId="16" pageNumber="17">Antarctic</collectingCountry>
. Finally, 
<bibRefCitation id="EFB7408BFFC9D42F66FAFBD14D56AFFC" author="Pages" pageId="16" pageNumber="38" refString="Pages, F. &amp; Kurbjeweit, F. (1994) Vertical distribution and abundance of macroplanktonic medusae and siphonophores from the Weddell Sea, Antarctica. Polar Biology, 14, 243 - 251." type="journal article" year="1994">Pagès and Kurbjeweit (1994)</bibRefCitation>
reported the collection of 20 colonies of 
<taxonomicName id="4C2646F9FFC9D42F6603FB394BAAAFFF" box="[1055,1254,1164,1189]" class="Hydrozoa" family="Stephanomiidae" genus="Stephanomia" kingdom="Animalia" order="Siphonophorae" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="contorta" subGenus="M.">
<emphasis id="B952E168FFC9D42F6603FB394BAAAFFF" box="[1055,1254,1164,1189]" italics="true" pageId="16" pageNumber="17">R. (M.) contorta</emphasis>
</taxonomicName>
from various stations in a transect across the Weddell Sea, in the depth ranges 1000–500 and 500– 
<specimenCount id="9D20F6F3FFC9D42F635FFB694ED8AFAC" box="[323,404,1244,1270]" pageId="16" pageNumber="17" type="generic">
<quantity id="4CDE909FFFC9D42F635FFB694EDCAFAC" box="[323,400,1244,1270]" metricMagnitude="2" metricUnit="m" metricValue="2.0" pageId="16" pageNumber="17" unit="m" value="200.0">200 m</quantity>
.
</specimenCount>
</paragraph>
</subSubSection>
</treatment>
</document>