221 lines
30 KiB
XML
221 lines
30 KiB
XML
<document id="F5CFFDB48CF7B374DE77F973182BD346" ID="10.11646/zootaxa.4126.2.2" ID-CLB-Dataset="38798" ID-DOI="10.11646/zootaxa.4126.2.2" ID-GBIF-Dataset="5c5304ea-13e7-4eb9-9ebf-d4d33acc5b32" ID-ISSN="1175-5326" ID-Zenodo-Dep="267371" ID-ZooBank="98FA0737-A117-487E-920F-BB03BC89D376" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1466145140804" checkinUser="plazi" docAuthor="Goodwin, Claire E., Berman, Jade, Janussen, Dorte, Göcke, Christian & Hendry, Katharine R." docDate="2016" docId="03D587C5F739FFD7FF24FDCA0F3D9878" docLanguage="en" docName="zootaxa.4126.2.2.pdf" docOrigin="Zootaxa 4126 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Doconesthes robinsoni Goodwin, Berman, Janussen, Göcke & Hendry, 2016, sp. nov." docType="treatment" docVersion="8" lastPageNumber="212" masterDocId="FFECFFBDF73DFFD2FFB3FFAA0C199A18" masterDocTitle="Hexactinellida (Porifera) from the Drake Passage (Southern Ocean) with a description of three new species" masterLastPageNumber="220" masterPageNumber="207" pageNumber="211" updateTime="1698663017348" updateUser="ExternalLinkService">
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<mods:title id="41F55822660B5FC329C8CF6DFEF44169">Hexactinellida (Porifera) from the Drake Passage (Southern Ocean) with a description of three new species</mods:title>
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<mods:namePart id="C1566C9BB48E8B414B4CBB4BE226371F">Goodwin, Claire E.</mods:namePart>
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<mods:namePart id="8DBEA101BFFCB282A9DFE72ACF4433E6">Berman, Jade</mods:namePart>
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<mods:namePart id="4197887E720BF734AE9D69D662991D95">Janussen, Dorte</mods:namePart>
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<mods:namePart id="71BEE38E634C0593B58642582572B838">Göcke, Christian</mods:namePart>
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<mods:namePart id="F6AA82EC816DF71E7F4146EB1DF6C1E5">Hendry, Katharine R.</mods:namePart>
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<mods:title id="129B436C5A6D76444FF0BD0953FF5F8D">Zootaxa</mods:title>
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<mods:number id="F4C0A2E38CDAA31B3AEF1A66CAF75ACF">4126</mods:number>
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<treatment id="03D587C5F739FFD7FF24FDCA0F3D9878" ID-DOI="http://doi.org/10.5281/zenodo.6055945" ID-GBIF-Taxon="127631182" ID-Zenodo-Dep="6055945" LSID="urn:lsid:plazi:treatment:03D587C5F739FFD7FF24FDCA0F3D9878" httpUri="http://treatment.plazi.org/id/03D587C5F739FFD7FF24FDCA0F3D9878" lastPageId="5" lastPageNumber="212" pageId="4" pageNumber="211">
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<subSubSection id="C3666558F739FFD6FF24FDCA0E099863" box="[151,528,608,635]" pageId="4" pageNumber="211" type="nomenclature">
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<paragraph id="8BC336D3F739FFD6FF24FDCA0E099863" blockId="4.[151,528,608,635]" box="[151,528,608,635]" pageId="4" pageNumber="211">
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<heading id="D08B81BFF739FFD6FF24FDCA0E099863" bold="true" box="[151,528,608,635]" fontSize="11" level="1" pageId="4" pageNumber="211" reason="1">
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<emphasis id="B908EAC1F739FFD6FF24FDCA0E099863" bold="true" box="[151,528,608,635]" pageId="4" pageNumber="211">
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<taxonomicName id="4C7C4D50F739FFD6FF24FDCA0DB29862" ID-CoL="372XQ" box="[151,427,608,634]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="4" pageNumber="211" phylum="Porifera" rank="species" species="robinsoni" status="sp. nov.">
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<emphasis id="B908EAC1F739FFD6FF24FDCA0DB29862" bold="true" box="[151,427,608,634]" italics="true" pageId="4" pageNumber="211">Doconesthes robinsoni</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A23B57BAF739FFD6FE01FDCB0E099863" box="[434,528,609,635]" pageId="4" pageNumber="211" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3666558F739FFD6FF24FD0D0E5A9937" pageId="4" pageNumber="211" type="materials_examined">
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<paragraph id="8BC336D3F739FFD6FF24FD0D0E5A9937" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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<emphasis id="B908EAC1F739FFD6FF24FD0D0D5198D8" bold="true" box="[151,328,679,704]" pageId="4" pageNumber="211">
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<typeStatus id="54C78871F739FFD6FF24FD0D0CCB98D8" box="[151,210,679,704]" pageId="4" pageNumber="211">Type</typeStatus>
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material.
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</emphasis>
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<typeStatus id="54C78871F739FFD6FEE0FD0D0DD998D8" box="[339,448,679,704]" pageId="4" pageNumber="211" type="holotype">Holotype</typeStatus>
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: MNHNCL POR–15002 Dried sample, small sub-sample rehydrated with Decon–90, tissue section and spicule preparation on slides. Sub–sample of above deposited as
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<collectionCode id="ED6DAE16F739FFD6FBF7FD6608B198FD" box="[1092,1192,716,741]" httpUri="http://grbio.org/cool/2x42-q9ch" name="Ulster Museum, Belfast" pageId="4" pageNumber="211">BELUM</collectionCode>
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.Mc2015.345 (spicule preparation only). Cruise sample number NBP1103–T0104–sponge20.
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<date id="FFC21013F739FFD6FC0FFD590FC19913" box="[956,984,755,779]" pageId="4" pageNumber="211" value="2011-05-31">31</date>
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st May 2011 Sars Seamount
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<geoCoordinate id="EE485014F739FFD6FAA6FD5809859913" box="[1301,1436,754,779]" direction="south" orientation="latitude" pageId="4" pageNumber="211" precision="9" value="-59.723835">59° 43.43’S</geoCoordinate>
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<geoCoordinate id="EE485014F739FFD6FF24FCBC0D319937" box="[151,296,790,815]" direction="west" orientation="longitude" pageId="4" pageNumber="211" precision="9" value="-68.75633">68° 45.38’W</geoCoordinate>
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,
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<quantity id="4C849B36F739FFD6FE80FCBC0DB79937" box="[307,430,790,815]" metricMagnitude="2" metricUnit="m" metricValue="6.95" metricValueMax="8.2" metricValueMin="5.7" pageId="4" pageNumber="211" unit="m" value="695.0" valueMax="820.0" valueMin="570.0">570–820m</quantity>
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, Otter Trawl.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3666558F739FFD6FF74FC900FF09D70" pageId="4" pageNumber="211" type="etymology">
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<paragraph id="8BC336D3F739FFD6FF74FC900F3D996F" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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<emphasis id="B908EAC1F739FFD6FF74FC900D57994B" bold="true" box="[199,334,826,851]" pageId="4" pageNumber="211">Etymology.</emphasis>
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Named after Dr Laura Robinson who was a principal scientist on RVIB Nathaniel B Palmer Cruise NBP11–03 on which these sponges were collected.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74FC2808669EC7" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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<emphasis id="B908EAC1F739FFD6FF74FC280DD19983" bold="true" box="[199,456,898,923]" pageId="4" pageNumber="211">External morphology</emphasis>
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(
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<figureCitation id="13472A56F739FFD6FE64FC280E2E9983" box="[471,567,898,923]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">Figure 3</figureCitation>
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A–C). The single specimen is a flattened sac, cream to light brown in colour (both when fresh and preserved). The sponge was dried after collection and it has only been possible to examine the dried and rehydrated specimen so details of living form may have been lost. The end of the sponge had been removed for preservation in alcohol and has completely disintegrated. The overall form is an oval sac
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<quantity id="4C849B36F739FFD6FA86FC4509649E1F" box="[1333,1405,1007,1031]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="211" unit="cm" value="10.0">10 cm</quantity>
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in length and
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<quantity id="4C849B36F739FFD6FEA1FBB90D519E32" box="[274,328,1043,1067]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="4" pageNumber="211" unit="cm" value="8.0">8 cm</quantity>
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wide with a thickness of around
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<quantity id="4C849B36F739FFD6FD0BFBB90EE89E32" box="[696,753,1043,1067]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="4" pageNumber="211" unit="cm" value="2.0">2 cm</quantity>
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. At the top of a sponge is a single large osculum which opens to a large atrium. Because the specimen has been damaged it is not possible to see the exact form of this but the atrium appears to have a maximum diameter of
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<quantity id="4C849B36F739FFD6FD0EFBF00EEC9E6A" box="[701,757,1114,1139]" metricMagnitude="-2" metricUnit="m" metricValue="5.0" pageId="4" pageNumber="211" unit="cm" value="5.0">5 cm</quantity>
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with one thin wall (~
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||
<quantity id="4C849B36F739FFD6FC5DFBF1082A9E6B" box="[1006,1075,1115,1139]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="4" pageNumber="211" unit="mm" value="4.0">4 mm</quantity>
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) and one thicker wall (
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<quantity id="4C849B36F739FFD6FA8EFBF009889E6B" box="[1341,1425,1114,1139]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="4" pageNumber="211" unit="cm" value="1.5">1.5 cm</quantity>
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). Presumably the sponge was originally attached at one of the narrow ends of its oval body, but the sample has been detached from its substrate by the trawl. There is no visible root tuft and attachment was basiphytous, directly onto the body. The consistency of the preserved specimen is fairly soft and it fragments easily.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74FB400DD09F3F" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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<emphasis id="B908EAC1F739FFD6FF74FB400D2C9F1B" bold="true" box="[199,309,1258,1283]" pageId="4" pageNumber="211">Skeleton.</emphasis>
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Confused mass of diactins with a dermal layer of pentactins and rough diactins and an atrial layer of hexactines and pentactines.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74FA9809689FA0" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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<emphasis id="B908EAC1F739FFD6FF74FA980D299F53" bold="true" box="[199,304,1330,1355]" pageId="4" pageNumber="211">Spicules.</emphasis>
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Hypodermal pentactins (
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<figureCitation id="13472A56F739FFD6FDFDFA980EB69F53" box="[590,687,1330,1355]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">Figure 3</figureCitation>
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D): Pentactins with four long tangential rays and a short proximal ray. From the tip to about 1/3 of the way up the ray is slightly spined. Proximal ray 53–(98)–203 by 22.1–(33.8)– 58.7 µm, tangential rays 323–(463)–652 by 16.8–(38.8)–56.3 µm. Hypoatrial pentactines of a similar form but smaller size – proximal ray 33–(63)–128 by12–(24)–31 µm tangential rays 231–(304)–355 by 17–(22)–27 µm.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74FA680CFE9C18" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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||
Atrial hexactines (
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<figureCitation id="13472A56F739FFD6FE20FA680DEB9FC3" box="[403,498,1474,1499]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">Figure 3</figureCitation>
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E). Spined for about ½ to 2/3 of their length. Ray length 197– (312) –467/20– (25) – 33 µm.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74F9A009089C50" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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Dermal diactins (
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<figureCitation id="13472A56F739FFD6FE3BF9A00DF19C3B" box="[392,488,1546,1571]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">Figure 3</figureCitation>
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G): Entirely spined diactins with rounded ends. Centrum marked by a large swelling indicating that spicules are probably derived from hexactins. 206–(251)–295 by 10.0–(13.6)–20.3 µm.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74F9F80D579CAB" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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Choanosomal diactins (
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<figureCitation id="13472A56F739FFD6FE64F9F80E259C73" box="[471,572,1618,1643]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">Figure 3</figureCitation>
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F): Large diactins which are slightly spined at their tips. Tips sometimes tapered and sometimes coming to a fairly abrupt point. Centrum often slightly tylote. 1110–(2118)–3084 by 13.3– (20.7)–28.8 µm.
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</paragraph>
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<paragraph id="8BC336D3F739FFD6FF74F9140F0D9D38" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
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Oxyoidal microsceleres (
|
||
<figureCitation id="13472A56F739FFD6FE52F9140E5A9CCF" box="[481,579,1726,1751]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">Figure 3</figureCitation>
|
||
H): Oxyhemihexasters. The majority have six unbranched rays but in a few spicules one or more of the rays is divided in two. The spicules are slightly ornamented with small spines. Total length of rays (measured from centrum) 48–(59)–74 µm.
|
||
</paragraph>
|
||
<paragraph id="8BC336D3F739FFD6FF74F8800FF09D70" blockId="4.[151,1437,679,2003]" pageId="4" pageNumber="211">
|
||
Strobiloplumicomes (
|
||
<figureCitation id="13472A56F739FFD6FE0AF8800E039D5B" box="[441,538,1834,1859]" captionStart="FIGURE 3" captionStartId="5.[151,250,1786,1808]" captionTargetBox="[151,1435,663,1764]" captionTargetId="figure@5.[151,1435,663,1764]" captionTargetPageId="5" captionText="FIGURE 3. Doconesthes robinsoni sp. nov. Type specimen MNHNCL POR – 15002. A. Freshly collected specimen, scale in cm; B. Rehydrated specimen, scale in cm; C. Atrium of rehydrated specimen, scale in cm; D. Hypodermal pentactin, illustration traced from light microscope image, scale 100 µm; E. Atrial hexactine, illustration traced from light microscope image, scale 100 µm F. End of choanosomal diactin, scale 200 µm, light microscope; G. Dermal diactin, scale 100 µm, light microscope; H. Hemioxyhexaster, scale 10 µm, SEM; I. Strobiloplumicome, scale 10 µm, SEM, the frontal ray is missing." httpUri="https://zenodo.org/record/267374/files/figure.png" pageId="4" pageNumber="211">
|
||
Figure
|
||
<date id="FFC21013F739FFD6FDB8F8810E039D5B" box="[523,538,1835,1859]" pageId="4" pageNumber="211">3</date>
|
||
</figureCitation>
|
||
I): Total diameter 65.6–(81.5)–97.7 µm; Diameter across centrum 1.8–(2.5)–4.0 µm; Calyx diameter 17.0–(20.2)–22.7 µm; ray length 18.8–(29.2)–39.6 µm.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3666558F739FFD7FF74F8D80F3D9878" lastPageId="5" lastPageNumber="212" pageId="4" pageNumber="211" type="diagnosis">
|
||
<paragraph id="8BC336D3F739FFD7FF74F8D80DB79BC8" blockId="4.[151,1437,679,2003]" lastBlockId="5.[151,1436,151,608]" lastPageId="5" lastPageNumber="212" pageId="4" pageNumber="211">
|
||
<emphasis id="B908EAC1F739FFD6FF74F8D80D589D93" bold="true" box="[199,321,1906,1931]" pageId="4" pageNumber="211">Diagnosis.</emphasis>
|
||
<collectingCountry id="F36B7643F739FFD6FEE3F8D90D769D93" box="[336,367,1907,1931]" name="American Samoa" pageId="4" pageNumber="211">As</collectingCountry>
|
||
strobiloplumicome microscleres are present, this specimen is assigned to the subfamily
|
||
<taxonomicName id="4C7C4D50F739FFD6FF24F83C0D5A9DB7" box="[151,323,1942,1967]" class="Hexactinellida" family="Rossellidae" kingdom="Animalia" order="Lyssacinosida" pageId="4" pageNumber="211" phylum="Porifera" rank="subFamily" subFamily="Lanuginellinae">Lanuginellinae</taxonomicName>
|
||
. Within the family genera are divided between those which possess only one
|
||
<typeStatus id="54C78871F739FFD6FB0EF83208F49DA8" box="[1213,1261,1944,1968]" pageId="4" pageNumber="211">type</typeStatus>
|
||
of hypodermal pentactin and those which have a second, short toothed, anchorate, category (
|
||
<bibRefCitation id="EFED4B22F739FFD6FBB3F81008D19DCB" author="Tabachnick" box="[1024,1224,1978,2003]" pageId="4" pageNumber="211" refString="Tabachnick, K. R. (2002) Family Rossellidae Schulze, 1885. In: Hooper, J. N. A. & Van Soest, R. W. M. (Eds.), Systema Porifera. A guide to the classification of sponges. Kluwer Academic / Plenum Publishers, New York, Boston, Dordrecht, London, Moscow, pp. 1441 - 1505. http: // dx. doi. org / 10.1007 / 978 - 1 - 4615 - 0747 - 5 _ 148" type="book chapter" year="2002">Tabachnick 2002</bibRefCitation>
|
||
).
|
||
<collectingCountry id="F36B7643F739FFD6FB68F81108E39DCB" box="[1243,1274,1979,2003]" name="American Samoa" pageId="4" pageNumber="211">As</collectingCountry>
|
||
this specimen lacks a second category of hypodermal pentactins and pinular hexactins, pinular pentactins or discohexasters we have assigned it to the genus
|
||
<taxonomicName id="4C7C4D50F738FFD7FE57FF160E6A9ACD" box="[484,627,188,213]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="genus">
|
||
<emphasis id="B908EAC1F738FFD7FE57FF160E6A9ACD" box="[484,627,188,213]" italics="true" pageId="5" pageNumber="212">Doconesthes</emphasis>
|
||
</taxonomicName>
|
||
. The genus is poorly known and until recently was represented only by
|
||
<taxonomicName id="4C7C4D50F738FFD7FF24FF750E309AE0" authority="Topsent, 1928" authorityName="Topsent" authorityYear="1928" box="[151,553,223,248]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="species" species="sessilis">
|
||
<emphasis id="B908EAC1F738FFD7FF24FF750D649AE0" box="[151,381,223,248]" italics="true" pageId="5" pageNumber="212">Doconesthes sessilis</emphasis>
|
||
<bibRefCitation id="EFED4B22F738FFD7FE35FF4A0E309AE0" author="Topsent" box="[390,553,224,248]" pageId="5" pageNumber="212" refString="Topsent, E. (1928) Spongiaires de l'Atlantique et de la Mediterranee provenant des croisieres du Prince Albert ler de Monaco. Resultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco, 74, 1 - 376." type="journal article" year="1928">Topsent, 1928</bibRefCitation>
|
||
</taxonomicName>
|
||
. An additional species
|
||
<taxonomicName id="4C7C4D50F738FFD7FC81FF7509159AE0" authority="Reiswig 2015" authorityName="Reiswig" authorityYear="2015" box="[818,1292,223,248]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="species" species="dustinchiversi">
|
||
<emphasis id="B908EAC1F738FFD7FC81FF75087E9AE0" box="[818,1127,223,248]" italics="true" pageId="5" pageNumber="212">Doconesthes dustinchiversi</emphasis>
|
||
<bibRefCitation id="EFED4B22F738FFD7FBDCFF7509159AE0" author="Reiswig" box="[1135,1292,223,248]" pageId="5" pageNumber="212" refString="Reiswig, H. M. (2015) First Languinellinae (Porifera, Hexactinellida, Rossellidae) from the NE Pacific and first species of Doconesthes from the Pacific Ocean. Zootaxa, 3920 (4), 572 -- 578. http: // dx. doi. org / 10.11646 / zootaxa. 3920.4.6" type="journal article" year="2015">Reiswig 2015</bibRefCitation>
|
||
</taxonomicName>
|
||
has recently been recorded from the north-east Pacific.
|
||
<taxonomicName id="4C7C4D50F738FFD7FDCAFEAE0F469B05" box="[633,863,260,285]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="species" species="sessilis">
|
||
<emphasis id="B908EAC1F738FFD7FDCAFEAE0F469B05" box="[633,863,260,285]" italics="true" pageId="5" pageNumber="212">Doconesthes sessilis</emphasis>
|
||
</taxonomicName>
|
||
was originally described from a basal fragment so its full complement of spicules may not be represented in the description. Specimens provisionally assigned to this species have also been recorded from the northern mid–Atlantic ridge (
|
||
<bibRefCitation id="EFED4B22F738FFD7FC04FEE608EB9B7C" author="Tabachnick" box="[951,1266,332,357]" pageId="5" pageNumber="212" refString="Tabachnick, K. R. & Collins, A. G. (2008) Glass sponges (Porifera, Hexactinellida) of the northern Mid - Atlantic Ridge. Marine Biology Research, 4, 25 - 47. http: // dx. doi. org / 10.1080 / 17451000701847848" type="journal article" year="2008">Tabachnick & Collins 2008</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFED4B22F738FFD7FB4DFEE60D7C9B90" author="Tabachnick" pageId="5" pageNumber="212" refString="Tabachnick, K. R. & Menshenina, L. L. (2013) New data on glass sponges (Porifera, Hexactinellida) of the northern Mid - Atlantic Ridge. Part 2. Aphrocallistidae, Euretidae, Euplectellidae and Rossellidae (with descriptions of two new species of Sympagella). Marine Biology Research, 9, 469 - 487. http: // dx. doi. org / 10.1080 / 17451000.2012.749996" type="journal article" year="2013">Tabachnick & Menshenina 2013</bibRefCitation>
|
||
), however, as noted by
|
||
<bibRefCitation id="EFED4B22F738FFD7FDC6FEC50F3E9B90" author="Reiswig" box="[629,807,367,392]" pageId="5" pageNumber="212" refString="Reiswig, H. M. (2015) First Languinellinae (Porifera, Hexactinellida, Rossellidae) from the NE Pacific and first species of Doconesthes from the Pacific Ocean. Zootaxa, 3920 (4), 572 -- 578. http: // dx. doi. org / 10.11646 / zootaxa. 3920.4.6" type="journal article" year="2015">Reiswig (2015)</bibRefCitation>
|
||
, there are significant differences in spiculaton between the
|
||
<typeStatus id="54C78871F738FFD7FF0CFE3F0CF69BB5" box="[191,239,405,429]" pageId="5" pageNumber="212">type</typeStatus>
|
||
and these two specimens (e.g. each has a different size class of dermal diactins) and a re-evaluation of their status may be warranted.
|
||
</paragraph>
|
||
<paragraph id="8BC336D3F738FFD7FF74FE760F3D9878" blockId="5.[151,1436,151,608]" pageId="5" pageNumber="212">
|
||
Our specimen differs from the
|
||
<typeStatus id="54C78871F738FFD7FD96FE770E4C9BED" box="[549,597,477,501]" pageId="5" pageNumber="212">type</typeStatus>
|
||
of
|
||
<taxonomicName id="4C7C4D50F738FFD7FDCFFE770EF79BED" box="[636,750,476,501]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="species" species="sessilis">
|
||
<emphasis id="B908EAC1F738FFD7FDCFFE770EF79BED" box="[636,750,476,501]" italics="true" pageId="5" pageNumber="212">D. sessilis</emphasis>
|
||
</taxonomicName>
|
||
in having smaller dermal and choanosomal diactins, smaller oxyoidal microscleres and strobiloplumicomes almost twice the size of those of the
|
||
<typeStatus id="54C78871F738FFD7FBFDFE5508A99800" box="[1102,1200,511,536]" pageId="5" pageNumber="212" type="holotype">holotype</typeStatus>
|
||
<taxonomicName id="4C7C4D50F738FFD7FB04FDAB09339800" box="[1207,1322,511,536]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="species" species="sessilis">
|
||
<emphasis id="B908EAC1F738FFD7FB04FDAB09339800" box="[1207,1322,511,536]" italics="true" pageId="5" pageNumber="212">D. sessilis</emphasis>
|
||
</taxonomicName>
|
||
and other recorded specimens. Our specimen differs from
|
||
<taxonomicName id="4C7C4D50F738FFD7FCA1FD8F08BA9825" authority="Reiswig 2015" authorityName="Reiswig" authorityYear="2015" box="[786,1187,548,573]" class="Hexactinellida" family="Rossellidae" genus="Doconesthes" kingdom="Animalia" order="Lyssacinosida" pageId="5" pageNumber="212" phylum="Porifera" rank="species" species="dustinchiversi">
|
||
<emphasis id="B908EAC1F738FFD7FCA1FD8F0FF89825" box="[786,993,548,573]" italics="true" pageId="5" pageNumber="212">D. dustinchiversi</emphasis>
|
||
<bibRefCitation id="EFED4B22F738FFD7FC4BFD8E08BA9825" author="Reiswig" box="[1016,1187,548,573]" pageId="5" pageNumber="212" refString="Reiswig, H. M. (2015) First Languinellinae (Porifera, Hexactinellida, Rossellidae) from the NE Pacific and first species of Doconesthes from the Pacific Ocean. Zootaxa, 3920 (4), 572 -- 578. http: // dx. doi. org / 10.11646 / zootaxa. 3920.4.6" type="journal article" year="2015">
|
||
Reiswig
|
||
<quantity id="4C849B36F738FFD7FBD8FD8E08BA9825" box="[1131,1187,548,573]" metricMagnitude="1" metricUnit="m" metricValue="5.1181" pageId="5" pageNumber="212" unit="in" value="2015.0">2015</quantity>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
in having smaller oxyhemihexasters and lacking pinular hexactins (Table 1).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |