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<document id="F4C00A4D7E33B017E19591788EE87BEE" ID-ISSN="1175-5326" IM.materialsCitations_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629625653342" checkinUser="felipe" docAuthor="P. R. Pugh" docDate="2009" docId="72712622BB13CE5995CEFA21FE4CFE7A" docLanguage="en" docName="zt02147p048.pdf" docOrigin="Zootaxa 2147" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Sphaeronectes tiburonae Pugh, 2009, sp. nov." docType="treatment" docVersion="3" lastPageNumber="38" masterDocId="8E485E5ABB31CE7C9559FFB0FF95FFE0" masterDocTitle="A review of the family Sphaeronectidae (Class Hydrozoa, Order Siphonophora), with the description of three new species" masterLastPageNumber="48" masterPageNumber="1" pageNumber="35" updateTime="1699085886706" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="8B76372E6F3D04BEE931D12996F161EF">A review of the family Sphaeronectidae (Class Hydrozoa, Order Siphonophora), with the description of three new species</mods:title>
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<mods:namePart id="11A8F027032CB21AC4E972B11CE98D81">P. R. Pugh</mods:namePart>
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<mods:date id="1B1D4DCF41EB8C84FCCC359552164578">2009</mods:date>
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<mods:number id="4E65CDE4E78B81964A0FFFE60E0866B1">2147</mods:number>
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<treatment id="72712622BB13CE5995CEFA21FE4CFE7A" ID-DOI="http://doi.org/10.5281/zenodo.5333483" ID-Zenodo-Dep="5333483" LSID="urn:lsid:plazi:treatment:72712622BB13CE5995CEFA21FE4CFE7A" httpUri="http://treatment.plazi.org/id/72712622BB13CE5995CEFA21FE4CFE7A" lastPageId="37" lastPageNumber="38" pageId="34" pageNumber="35">
<subSubSection id="B2C2C4BFBB13CE5E95CEFA21FDBDFA4B" box="[151,552,1425,1451]" pageId="34" pageNumber="35" type="nomenclature">
<paragraph id="FA679734BB13CE5E95CEFA21FDBDFA4B" blockId="34.[151,552,1425,1451]" box="[151,552,1425,1451]" pageId="34" pageNumber="35">
<heading id="A12F2058BB13CE5E95CEFA21FDBDFA4B" bold="true" box="[151,552,1425,1451]" fontSize="11" level="1" pageId="34" pageNumber="35" reason="1">
<emphasis id="C8AC4B26BB13CE5E95CEFA21FDBDFA4B" bold="true" box="[151,552,1425,1451]" pageId="34" pageNumber="35">
<taxonomicName id="3DD8ECB7BB13CE5E95CEFA21FE56FA4B" ID-CoL="6YWFP" authorityName="Pugh" authorityYear="2009" box="[151,451,1425,1451]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="34" pageNumber="35" phylum="Cnidaria" rank="species" species="tiburonae" status="sp. nov.">
<emphasis id="C8AC4B26BB13CE5E95CEFA21FE56FA4B" bold="true" box="[151,451,1425,1451]" italics="true" pageId="34" pageNumber="35">Sphaeronectes tiburonae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="D39FF65DBB13CE5E9492FA21FDBDFA4B" box="[459,552,1425,1451]" pageId="34" pageNumber="35" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="B2C2C4BFBB13CE5E95CEFA6AFC0FF989" pageId="34" pageNumber="35" type="diagnosis">
<paragraph id="FA679734BB13CE5E95CEFA6AFC0FF989" blockId="34.[151,1436,1498,2030]" pageId="34" pageNumber="35">
<emphasis id="C8AC4B26BB13CE5E95CEFA6AFE8CFA14" bold="true" box="[151,281,1498,1524]" pageId="34" pageNumber="35">Diagnosis:</emphasis>
Large hemispherical nectophore, somewhat truncated on its proximal-basal side,
<quantity id="3D203AD1BB13CE5E91B9FA6BFAB6FA15" box="[1248,1315,1499,1525]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="34" pageNumber="35" unit="mm" value="8.0">8 mm</quantity>
in height. Nectosac restricted to lower two-thirds of nectophore. Hydroecium small and tubular, up to one-third height of nectosac. Minute globular somatocyst, 0.25 mm in diameter. Lateral radial canals extending up to close to apex of nectosac, but then curving and running directly to ostium.
</paragraph>
</subSubSection>
<subSubSection id="B2C2C4BFBB13CE5E959FF9C8FCB1F8E6" pageId="34" pageNumber="35" type="materials_examined">
<paragraph id="FA679734BB13CE5E959FF9C8FCB1F8E6" blockId="34.[151,1436,1498,2030]" pageId="34" pageNumber="35">
<emphasis id="C8AC4B26BB13CE5E959FF9C8FE28F972" bold="true" box="[198,445,1656,1682]" pageId="34" pageNumber="35">Material examined:</emphasis>
<materialsCitation id="4AB09D69BB13CE5E949FF9C8FCB5F8E6" collectingDate="2006-05-11" collectionCode="USNM" county="Smithsonian's National Museum of Natural History" elevation="1896" latitude="36.602165" location="The" longLatPrecision="11" longitude="-122.37617" municipality="It" pageId="34" pageNumber="35" specimenCode="USNM1124196" specimenCount="1">
A single specimen collected during
<emphasis id="C8AC4B26BB13CE5E962BF9C9FC5BF972" box="[882,974,1657,1682]" italics="true" pageId="34" pageNumber="35">Tiburon</emphasis>
Dive 981 (
<date id="8E66B1F4BB13CE5E910DF9C8FA97F972" box="[1108,1282,1653,1682]" pageId="34" pageNumber="35" value="2006-05-11">
<collectingDate id="9E22481CBB13CE5E910DF9C8FA97F972" box="[1108,1282,1653,1682]" pageId="34" pageNumber="35" value="2006-05-11">
11
<superScript id="0DAD3A7CBB13CE5E9128F9C5FBE8F963" attach="left" box="[1137,1149,1653,1667]" fontSize="6" pageId="34" pageNumber="35">th</superScript>
May 2006
</collectingDate>
</date>
;
<geoCoordinate id="9FECF1F3BB13CE5E9056F9C8FA02F972" box="[1295,1431,1656,1682]" degrees="36" direction="north" minutes="36.13" orientation="latitude" pageId="34" pageNumber="35" precision="9" value="36.602165">36°36.13'N</geoCoordinate>
,
<geoCoordinate id="9FECF1F3BB13CE5E95CEF92FFEABF959" box="[151,318,1695,1721]" degrees="122" direction="west" minutes="22.57" orientation="longitude" pageId="34" pageNumber="35" precision="9" value="-122.37617">122°22.57'W</geoCoordinate>
: depth of collection
<quantity id="3D203AD1BB13CE5E9718F92FFD31F959" box="[577,676,1695,1721]" metricMagnitude="3" metricUnit="m" metricValue="1.896" pageId="34" pageNumber="35" unit="m" value="1896.0">
<elevation id="71F57007BB13CE5E9718F92FFD31F959" box="[577,676,1695,1721]" metricMagnitude="3" metricUnit="m" metricValue="1.896" pageId="34" pageNumber="35" unit="m" value="1896.0">1896 m</elevation>
</quantity>
).
<location id="FF07C1EFBB13CE5E97E2F92FFD7FF959" LSID="urn:lsid:plazi:treatment:72712622BB13CE5995CEFA21FE4CFE7A:FF07C1EFBB13CE5E97E2F92FFD7FF959" box="[699,746,1695,1721]" county="Smithsonian's National Museum of Natural History" latitude="36.602165" longLatPrecision="11" longitude="-122.37617" municipality="It" name="The" pageId="34" pageNumber="35">The</location>
specimen was initially fixed in 5% formalin, and later transferred to
<location id="FF07C1EFBB13CE5E941DF976FE59F900" LSID="urn:lsid:plazi:treatment:72712622BB13CE5995CEFA21FE4CFE7A:FF07C1EFBB13CE5E941DF976FE59F900" box="[324,460,1734,1760]" county="Smithsonian's National Museum of Natural History" latitude="36.602165" longLatPrecision="11" longitude="-122.37617" municipality="It" name="Steedman's" pageId="34" pageNumber="35">Steedman's</location>
preserving fluid.
<collectingMunicipality id="1A030D4EBB13CE5E97F0F976FD2EF900" box="[681,699,1734,1760]" pageId="34" pageNumber="35">It</collectingMunicipality>
is designated the
<typeStatus id="25632996BB13CE5E96C3F976FC5BF900" box="[922,974,1734,1760]" pageId="34" pageNumber="35">type</typeStatus>
and is deposited at the
<collectingCounty id="1306EFB8BB13CE5E91ABF976FDDDF8E6" pageId="34" pageNumber="35">Smithsonian's National Museum of Natural History</collectingCounty>
(
<specimenCode id="AA7E3F4FBB13CE5E970EF95CFC8DF8E6" box="[599,792,1772,1798]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="34" pageNumber="35" type="Museum">USNM1124196</specimenCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="B2C2C4BFBB13CE58959FF8A3FC61F8E0" lastPageId="36" lastPageNumber="37" pageId="34" pageNumber="35" type="description">
<paragraph id="FA679734BB13CE5E959FF8A3FE60F841" blockId="34.[151,1436,1498,2030]" pageId="34" pageNumber="35">
<emphasis id="C8AC4B26BB13CE5E959FF8A3FEF4F8CD" bold="true" box="[198,353,1811,1837]" pageId="34" pageNumber="35">Description:</emphasis>
The specimen consisted of a single nectophore, and a short part of the anterior region of the siphosome, which was tightly contracted into the hydroecium. The posterior part of the siphosome was broken off during collection. Photographs of the somewhat stressed specimen, taken shortly after recovery of the ROV, are shown in
<figureCitation id="62E38BB1BB13CE5E9425F837FE64F841" box="[380,497,1927,1953]" captionStart="FIGURE 28" captionStartId="35.[151,258,1949,1973]" captionTargetBox="[241,1346,733,1925]" captionTargetId="figure-262@35.[217,1369,714,1944]" captionTargetPageId="35" captionText="FIGURE 28. Sphaeronectes tiburonae sp. nov. Three views of the somewhat stressed nectophore of shortly after recovery of the ROV. Scale bar 5 mm." pageId="34" pageNumber="35">Figure 28</figureCitation>
.
</paragraph>
<paragraph id="FA679734BB13CE5F959FF81EFDACFEAC" blockId="34.[151,1436,1498,2030]" lastBlockId="35.[151,1436,152,680]" lastPageId="35" lastPageNumber="36" pageId="34" pageNumber="35">
<emphasis id="C8AC4B26BB13CE5E959FF81EFEDBF827" box="[198,334,1966,1991]" italics="true" pageId="34" pageNumber="35">Nectophore</emphasis>
: The fragile nectophore (
<figureCitation id="62E38BB1BB13CE5E972CF81EFD67F828" box="[629,754,1966,1992]" captionStart="FIGURE 28" captionStartId="35.[151,258,1949,1973]" captionTargetBox="[241,1346,733,1925]" captionTargetId="figure-262@35.[217,1369,714,1944]" captionTargetPageId="35" captionText="FIGURE 28. Sphaeronectes tiburonae sp. nov. Three views of the somewhat stressed nectophore of shortly after recovery of the ROV. Scale bar 5 mm." pageId="34" pageNumber="35">Figures 28</figureCitation>
&amp;
<figureCitation id="62E38BB1BB13CE5E964EF81EFCA0F828" box="[791,821,1966,1992]" captionStart="FIGURE 29" captionStartId="36.[151,256,1043,1067]" captionTargetBox="[310,1270,194,976]" captionTargetId="figure-414@36.[264,1323,167,1025]" captionTargetPageId="36" captionText="FIGURE 29. Sphaeronectes tiburonae sp. nov. Lateral view of nectophore. For annotations see legend to Figure 21. Scale bar 2 mm." pageId="34" pageNumber="35">29</figureCitation>
) was hemispherical in shape with a rounded, convex apex, rather
<taxonomicName id="3DD8ECB7BB13CE5E9471F865FDD1F80E" authorityName="Pugh" authorityYear="2009" box="[296,580,2005,2030]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="34" pageNumber="35" phylum="Cnidaria" rank="species" species="haddocki">
<emphasis id="C8AC4B26BB13CE5E9471F865FDD1F80E" box="[296,580,2005,2030]" italics="true" pageId="34" pageNumber="35">Sphaeronectes haddocki</emphasis>
</taxonomicName>
, although it was obliquely truncated on its proximal side between the top of the external opening of the hydroecium and the base of the nectophore. In life it measured
<quantity id="3D203AD1BB12CE5F91BEFF28FABEFF52" box="[1255,1323,152,178]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="35" pageNumber="36" unit="mm" value="8.0">8 mm</quantity>
in height and
<quantity id="3D203AD1BB12CE5F9592FF0EFE84FF38" box="[203,273,190,216]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="35" pageNumber="36" unit="mm" value="8.0">8 mm</quantity>
across, in the proximal-distal direction, and 7.8 mm in the lateral direction. There was a slight decrease in the diameter of the nectophore above the ostium, but nowhere near as marked as in the two species described above. Nonetheless the ostial opening was quite narrow, measuring 4.5 mm in diameter. Typically it was equipped with a narrow velum.
</paragraph>
<paragraph id="FA679734BB12CE5F959FFEE9FE52FD48" blockId="35.[151,1436,152,680]" pageId="35" pageNumber="36">
The animal, when being photographed in the laboratory on board ship, was clearly stressed, probably as a result of temperature shock, and its nectosac underwent a number of violent contortions, such that it was difficult to establish its true relaxed condition. Some of the photographs showed the nectosac to be conical, with a pointed apex, but the configuration shown in
<figureCitation id="62E38BB1BB12CE5F964FFE7DFC1EFE07" box="[790,907,461,487]" captionStart="FIGURE 28" captionStartId="35.[151,258,1949,1973]" captionTargetBox="[241,1346,733,1925]" captionTargetId="figure-262@35.[217,1369,714,1944]" captionTargetPageId="35" captionText="FIGURE 28. Sphaeronectes tiburonae sp. nov. Three views of the somewhat stressed nectophore of shortly after recovery of the ROV. Scale bar 5 mm." pageId="35" pageNumber="36">Figure 28</figureCitation>
(bottom) appeared to closest to the relaxed state. Based on this, the height of the nectosac was c. 5.5 mm, and thus it stretched to approximately twothirds the height of the nectophore itself. After preservation the nectophore shrank considerably in size and became greatly distorted, with the only obvious features being the hydroecium packed with the siphosomal stem, and the minute somatocyst, while the nectosac was very shallow and difficult to distinguish, with no signs of any radial canals.
</paragraph>
<caption id="AEA7C7BCBB12CE5F95CEF82DFDBAF837" pageId="35" pageNumber="36" startId="35.[151,258,1949,1973]" targetBox="[241,1346,733,1925]" targetPageId="35">
<paragraph id="FA679734BB12CE5F95CEF82DFDBAF837" blockId="35.[151,1435,1949,2007]" pageId="35" pageNumber="36">
<emphasis id="C8AC4B26BB12CE5F95CEF82DFEB8F855" bold="true" box="[151,301,1949,1973]" pageId="35" pageNumber="36">FIGURE 28.</emphasis>
<taxonomicName id="3DD8ECB7BB12CE5F946CF82EFDD9F855" authorityName="Pugh" authorityYear="2009" box="[309,588,1950,1973]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="35" pageNumber="36" phylum="Cnidaria" rank="species" species="tiburonae" status="sp. nov.">
<emphasis id="C8AC4B26BB12CE5F946CF82EFDD9F855" box="[309,588,1950,1973]" italics="true" pageId="35" pageNumber="36">Sphaeronectes tiburonae</emphasis>
</taxonomicName>
<emphasis id="C8AC4B26BB12CE5F970DF82DFD3BF855" bold="true" box="[596,686,1949,1973]" pageId="35" pageNumber="36">
<taxonomicNameLabel id="D39FF65DBB12CE5F970DF82DFD3BF855" box="[596,686,1949,1973]" pageId="35" pageNumber="36" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Three views of the somewhat stressed nectophore of shortly after recovery of the ROV. Scale bar 5 mm.
</paragraph>
</caption>
<caption id="AEA7C7BCBB15CE5895CEFBA3FED0FBAD" pageId="36" pageNumber="37" startId="36.[151,256,1043,1067]" targetBox="[310,1270,194,976]" targetPageId="36">
<paragraph id="FA679734BB15CE5895CEFBA3FED0FBAD" blockId="36.[151,1436,1043,1101]" pageId="36" pageNumber="37">
<emphasis id="C8AC4B26BB15CE5895CEFBA3FEBCFBCB" bold="true" box="[151,297,1043,1067]" pageId="36" pageNumber="37">FIGURE 29.</emphasis>
<taxonomicName id="3DD8ECB7BB15CE58946BFBA4FDD5FBCB" authorityName="Pugh" authorityYear="2009" box="[306,576,1044,1067]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="species" species="tiburonae" status="sp. nov.">
<emphasis id="C8AC4B26BB15CE58946BFBA4FDD5FBCB" box="[306,576,1044,1067]" italics="true" pageId="36" pageNumber="37">Sphaeronectes tiburonae</emphasis>
</taxonomicName>
<emphasis id="C8AC4B26BB15CE589711FBA3FD35FBCB" bold="true" box="[584,672,1043,1067]" pageId="36" pageNumber="37">
<taxonomicNameLabel id="D39FF65DBB15CE589711FBA3FD35FBCB" box="[584,672,1043,1067]" pageId="36" pageNumber="37" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Lateral view of nectophore. For annotations see legend to Figure 21. Scale bar 2 mm.
</paragraph>
</caption>
<paragraph id="FA679734BB15CE58959FFB12FC49F96C" blockId="36.[151,1436,1186,2018]" pageId="36" pageNumber="37">
The hydroecium was small and tubular, with only a relatively small opening onto the proximal side of the nectophore, and extended up to about one third the height of the nectosac. Typically the siphosomal stem was attached to the nectophore in the upper distal corner of the hydroecium, and at that point arose the somatocyst, which was without an obvious pedicle. The somatocyst was globular in shape and minute in size, measuring only 0.25 mm in diameter. In relative terms, with regard to the size of the nectophore, the somatocyst of
<taxonomicName id="3DD8ECB7BB15CE5895CEFAD4FE2EFA9D" authorityName="Pugh" authorityYear="2009" box="[151,443,1380,1405]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="species" species="tiburonae">
<emphasis id="C8AC4B26BB15CE5895CEFAD4FE2EFA9D" box="[151,443,1380,1405]" italics="true" pageId="36" pageNumber="37">Sphaeronectes tiburonae</emphasis>
</taxonomicName>
is by far the smallest of any
<taxonomicName id="3DD8ECB7BB15CE58964CFAD4FBB1FA9D" box="[789,1060,1379,1405]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="species" species="undetermined">
<emphasis id="C8AC4B26BB15CE58964CFAD4FC2AFA9D" box="[789,959,1380,1405]" italics="true" pageId="36" pageNumber="37">Sphaeronectes</emphasis>
species.
</taxonomicName>
No pigmentation was observed in the somatocyst, but it was seen to contain numerous oil droplets of varying sizes. As with
<taxonomicName id="3DD8ECB7BB15CE589192FA3AFAC6FA43" authorityName="Pugh" authorityYear="2009" box="[1227,1363,1418,1443]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="species" species="haddocki">
<emphasis id="C8AC4B26BB15CE589192FA3AFAC6FA43" box="[1227,1363,1418,1443]" italics="true" pageId="36" pageNumber="37">S. haddocki</emphasis>
</taxonomicName>
, there was no obvious pedicular canal connecting the somatocyst to the nectosac. The four radial canals arose together, with the upper canal running over the apex of the nectosac and then down to the ostial ring canal, and the lower canal running directly down to it. The lateral radial canals looped upwards to close to the apex of the nectosac, but then curved down and ran directly to the ostial ring canal, without forming the additional loop that was found on the nectophores of the species described above. On the proximal side of the nectosac the angle between the upper canal and each of the lateral canals was c. 30°.
</paragraph>
<paragraph id="FA679734BB15CE58959FF929FC61F8E0" blockId="36.[151,1436,1186,2018]" pageId="36" pageNumber="37">
<emphasis id="C8AC4B26BB15CE58959FF929FED0F952" box="[198,325,1689,1714]" italics="true" pageId="36" pageNumber="37">Siphosome</emphasis>
: As noted above only the very anterior most part of the siphosomal stem remained with the specimen, and this was greatly contracted into the hydroecium. The cormidia were at a very early stage of development and no useful observations could be made concerning them.
</paragraph>
</subSubSection>
<subSubSection id="B2C2C4BFBB15CE58959FF8BDFE2CF802" pageId="36" pageNumber="37" type="distribution">
<paragraph id="FA679734BB15CE58959FF8BDFE2CF802" blockId="36.[151,1436,1186,2018]" pageId="36" pageNumber="37">
<emphasis id="C8AC4B26BB15CE58959FF8BDFEFCF8C7" bold="true" box="[198,361,1805,1831]" pageId="36" pageNumber="37">Distribution:</emphasis>
The species is known from a single specimen collected in the vicinity of Monterey Bay,
<collectingRegion id="381C59D6BB15CE5895CEF882FE87F8AC" box="[151,274,1842,1868]" country="United States of America" name="California" pageId="36" pageNumber="37">California</collectingRegion>
, at a depth
<quantity id="3D203AD1BB15CE5894C3F882FE62F8AC" box="[410,503,1842,1868]" metricMagnitude="3" metricUnit="m" metricValue="1.896" pageId="36" pageNumber="37" unit="m" value="1896.0">1896 m</quantity>
. There are several
<emphasis id="C8AC4B26BB15CE589781F882FCB7F8AB" box="[728,802,1842,1867]" italics="true" pageId="36" pageNumber="37">in situ</emphasis>
frame grabs of probable
<taxonomicName id="3DD8ECB7BB15CE589116F882FB6FF8AB" authorityName=", Schneider" authorityYear="1898" box="[1103,1274,1842,1867]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="genus">
<emphasis id="C8AC4B26BB15CE589116F882FB6FF8AB" box="[1103,1274,1842,1867]" italics="true" pageId="36" pageNumber="37">Sphaeronectes</emphasis>
</taxonomicName>
specimens in the VARS database at MBARI that were taken between depths of 1385 and
<quantity id="3D203AD1BB15CE58914FF8E8FBE7F892" box="[1046,1138,1880,1906]" metricMagnitude="3" metricUnit="m" metricValue="2.764" pageId="36" pageNumber="37" unit="m" value="2764.0">2764 m</quantity>
. This depth range is very different from that known for the other two species described herein and so the records may refer to
<taxonomicName id="3DD8ECB7BB15CE5890DCF8CDFE98F85B" authorityName="Pugh" authorityYear="2009" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="species" species="tiburonae">
<emphasis id="C8AC4B26BB15CE5890DCF8CDFE98F85B" italics="true" pageId="36" pageNumber="37">S. tiburonae</emphasis>
</taxonomicName>
, although one cannot discount the possibility that yet another
<taxonomicName id="3DD8ECB7BB15CE58914DF812FAB3F85C" box="[1044,1318,1954,1980]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="36" pageNumber="37" phylum="Cnidaria" rank="species" species="undetermined">
<emphasis id="C8AC4B26BB15CE58914DF812FB50F85B" box="[1044,1221,1954,1979]" italics="true" pageId="36" pageNumber="37">Sphaeronectes</emphasis>
species
</taxonomicName>
might be present at deeper depths.
</paragraph>
</subSubSection>
<subSubSection id="B2C2C4BFBB14CE59959FFF27FC5DFF1F" pageId="37" pageNumber="38" type="discussion">
<paragraph id="FA679734BB14CE59959FFF27FC5DFF1F" blockId="37.[151,1436,151,410]" pageId="37" pageNumber="38">
<emphasis id="C8AC4B26BB14CE59959FFF27FED4FF51" bold="true" box="[198,321,151,177]" pageId="37" pageNumber="38">Remarks:</emphasis>
Although the nectophore of
<taxonomicName id="3DD8ECB7BB14CE5997C7FF28FC57FF51" authorityName="Pugh" authorityYear="2009" box="[670,962,152,177]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="tiburonae">
<emphasis id="C8AC4B26BB14CE5997C7FF28FC57FF51" box="[670,962,152,177]" italics="true" pageId="37" pageNumber="38">Sphaeronectes tiburonae</emphasis>
</taxonomicName>
is only slightly smaller that those of
<taxonomicName id="3DD8ECB7BB14CE5990DFFF28FED1FF38" authorityName="Pugh" authorityYear="2009" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="christiansonae">
<emphasis id="C8AC4B26BB14CE5990DFFF28FED1FF38" italics="true" pageId="37" pageNumber="38">S. christiansonae</emphasis>
</taxonomicName>
and
<taxonomicName id="3DD8ECB7BB14CE599427FF0FFD92FF38" authorityName="Pugh" authorityYear="2009" box="[382,519,191,216]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="haddocki">
<emphasis id="C8AC4B26BB14CE599427FF0FFD92FF38" box="[382,519,191,216]" italics="true" pageId="37" pageNumber="38">S. haddocki</emphasis>
</taxonomicName>
, the former can easily be distinguished on the basis of its minute somatocyst, its less curved lateral radial canals, and the small tubular hydroecium.
</paragraph>
</subSubSection>
<subSubSection id="B2C2C4BFBB14CE59959FFEBBFE4CFE7A" pageId="37" pageNumber="38" type="etymology">
<paragraph id="FA679734BB14CE59959FFEBBFE4CFE7A" blockId="37.[151,1436,151,410]" pageId="37" pageNumber="38">
<emphasis id="C8AC4B26BB14CE59959FFEBBFEC2FEC5" bold="true" box="[198,343,267,293]" pageId="37" pageNumber="38">Etymology:</emphasis>
<taxonomicName id="3DD8ECB7BB14CE599439FEBCFD11FEC5" authorityName="Pugh" authorityYear="2009" box="[352,644,268,293]" class="Hydrozoa" family="Sphaeronectidae" genus="Sphaeronectes" kingdom="Animalia" order="Siphonophorae" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="tiburonae">
<emphasis id="C8AC4B26BB14CE599439FEBCFD11FEC5" box="[352,644,268,293]" italics="true" pageId="37" pageNumber="38">Sphaeronectes tiburonae</emphasis>
</taxonomicName>
is named for the ROV
<emphasis id="C8AC4B26BB14CE5996FAFEBCFC6AFEC5" box="[931,1023,268,293]" italics="true" pageId="37" pageNumber="38">Tiburon</emphasis>
whose pilots so skilfully collected most of the specimens of the species described herein, and a great number of other siphonophore species beside. Unfortunately the ROV is now decommissioned, and it remains to be seen whether its replacement can be manoeuvred as skilfully.
</paragraph>
</subSubSection>
</treatment>
</document>
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