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<document id="C308E6FDFDF231B341A954BC62F744D8" ID-CLB-Dataset="28347" ID-DOI="10.11646/zootaxa.4567.3.1" ID-GBIF-Dataset="47813581-d217-4a19-8848-a3e9cf2ddaf4" ID-ISSN="1175-5326" ID-Zenodo-Dep="2598945" ID-ZooBank="0AEFAF80-B001-4A18-88AC-5B6A189F6DCD" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1553062614686" checkinUser="plazi" docAuthor="Staples, David A." docDate="2019" docId="03895C3329034F15FF01FC18FAC4F808" docLanguage="en" docName="zootaxa.4567.3.1.pdf" docOrigin="Zootaxa 4567 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Austrodecus bamberi Wang 2013" docType="treatment" docVersion="8" lastPageNumber="419" masterDocId="FFB0244B29114F07FF96FFB2FF80FFFD" masterDocTitle="Pycnogonids (Arthropoda, Pycnogonida) from the Southwest Indian Ridge" masterLastPageNumber="449" masterPageNumber="401" pageNumber="419" updateTime="1698701998649" updateUser="ExternalLinkService">
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<mods:title id="E2FA678B0294DA1FFEA9C26DC65484DB">Pycnogonids (Arthropoda, Pycnogonida) from the Southwest Indian Ridge</mods:title>
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<mods:namePart id="A515E84549D42D157D62825FB3B6911A">Staples, David A.</mods:namePart>
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<treatment id="03895C3329034F15FF01FC18FAC4F808" ID-DOI="http://doi.org/10.5281/zenodo.5944892" ID-GBIF-Taxon="154435146" ID-Zenodo-Dep="5944892" LSID="urn:lsid:plazi:treatment:03895C3329034F15FF01FC18FAC4F808" httpUri="http://treatment.plazi.org/id/03895C3329034F15FF01FC18FAC4F808" lastPageNumber="419" pageId="18" pageNumber="419">
<subSubSection id="C33ABEAE29034F15FF01FC18FDF3FC39" box="[151,627,938,964]" pageId="18" pageNumber="419" type="nomenclature">
<paragraph id="8B9FED2529034F15FF01FC18FDF3FC39" blockId="18.[151,627,938,998]" box="[151,627,938,964]" pageId="18" pageNumber="419">
<heading id="D0D75A4929034F15FF01FC18FDF3FC39" bold="true" box="[151,627,938,964]" fontSize="11" level="1" pageId="18" pageNumber="419" reason="1">
<taxonomicName id="4C2096A629034F15FF01FC18FDF3FC39" ID-CoL="JWC8" authority="Wang et al., 2013" authorityName="Wang" authorityYear="2013" box="[151,627,938,964]" class="Pycnogonida" family="Austrodecidae" genus="Austrodecus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pantopoda" pageId="18" pageNumber="419" phylum="Arthropoda" rank="species" species="bamberi">
<emphasis id="B954313729034F15FF01FC18FDF3FC39" bold="true" box="[151,627,938,964]" pageId="18" pageNumber="419">
<emphasis id="B954313729034F15FF01FC18FE17FC39" bold="true" box="[151,407,938,964]" italics="true" pageId="18" pageNumber="419">Austrodecus bamberi</emphasis>
<bibRefCitation id="EFB190D429034F15FE08FC18FDF3FC39" author="Wang, J. &amp; Huang, D. &amp; Lin, R. &amp; Zhen, X. - Q." box="[414,627,938,964]" pageId="18" pageNumber="419" pagination="73 - 79" refId="ref29618" refString="Wang, J. Huang, D., Lin, R. &amp; Zhen, X. - Q. (2013) A new species of Austrodecus Hodgson, 1907 (Arthropoda: Pycnogonida: Austrodecidae) from the Southwest Indian Ridge. Zookeys, 349, 73 - 79. https: // doi. org / 10.3897 / zookeys. 349.6170" type="journal article" year="2013">
Wang
<emphasis id="B954313729034F15FE79FC18FDAAFC39" bold="true" box="[495,554,938,964]" italics="true" pageId="18" pageNumber="419">et al.</emphasis>
, 2013
</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33ABEAE29034F15FF01FC7FFE45FC1B" box="[151,453,973,998]" pageId="18" pageNumber="419" type="description">
<paragraph id="8B9FED2529034F15FF01FC7FFE45FC1B" blockId="18.[151,627,938,998]" box="[151,453,973,998]" pageId="18" pageNumber="419">
<figureCitation id="131BF1A029034F15FF01FC7FFE82FC1B" box="[151,258,973,998]" captionStart="FIGURE 10" captionStartId="19.[151,250,589,611]" captionTargetBox="[172,1263,183,540]" captionTargetId="figure@19.[150,1436,178,585]" captionTargetPageId="19" captionText="FIGURE 10. Austrodecus bamberi. male A, dorsal process, third coxa; B, one of two dorsodistal tubercles on lateral process; C, oviger." httpUri="https://zenodo.org/record/2598965/files/figure.png" pageId="18" pageNumber="419">Figure 10</figureCitation>
A–C;
<figureCitation id="131BF1A029034F15FED0FC7FFE11FC1B" box="[326,401,973,998]" captionStart="PLATE 3" captionStartId="42.[151,234,1740,1762]" captionTargetBox="[151,1436,193,1718]" captionTargetId="figure@42.[151,1436,193,1718]" captionTargetPageId="42" captionText="PLATE 3. Tanystylum tiara sp. nov., holotype male. A, trunk lateral; B, trunk, dorsal; C, trunk anterior view. Sericosura species indeterminate. D, trunk dorsal; E, trunk, lateral. Austrodecus bamberi. F, trunk dorsal; G, trunk, lateral. Austrodecus taylorae sp. nov., holotype, male. H, trunk dorsal." httpUri="https://zenodo.org/record/2598991/files/figure.png" pageId="18" pageNumber="419">Plate 3</figureCitation>
F–G
</paragraph>
</subSubSection>
<subSubSection id="C33ABEAE29034F15FF01FBA7FDFAFBD6" box="[151,634,1045,1067]" pageId="18" pageNumber="419" type="reference_group">
<paragraph id="8B9FED2529034F15FF01FBA7FDFAFBD6" blockId="18.[151,634,1045,1067]" box="[151,634,1045,1067]" pageId="18" pageNumber="419">
<treatmentCitationGroup id="AB30CA0B29034F15FF01FBA7FDFAFBD6" box="[151,634,1045,1067]" pageId="18" pageNumber="419">
<taxonomicName id="4C2096A629034F15FF01FBA7FDCEFBD6" ID-CoL="JWC8" authority="Wang et al., 2013: 73" authorityName="Wang" authorityPageNumber="73" authorityYear="2013" box="[151,590,1045,1067]" class="Pycnogonida" family="Austrodecidae" genus="Austrodecus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pantopoda" pageId="18" pageNumber="419" phylum="Arthropoda" rank="species" species="bamberi">
<emphasis id="B954313729034F15FF01FBA7FEEDFBD6" box="[151,365,1045,1067]" italics="true" pageId="18" pageNumber="419">Austrodecus bamberi</emphasis>
<treatmentCitation id="0A81CB3429034F15FEE2FBA4FDCEFBD6" author="Wang, J. &amp; Huang, D. &amp; Lin, R. &amp; Zhen, X. - Q." box="[372,590,1045,1067]" page="73" pageId="18" pageNumber="419" year="2013">
<bibRefCitation id="EFB190D429034F15FEE2FBA4FDAAFBD6" author="Wang, J. &amp; Huang, D. &amp; Lin, R. &amp; Zhen, X. - Q." box="[372,554,1045,1067]" pageId="18" pageNumber="419" pagination="73 - 79" refId="ref29618" refString="Wang, J. Huang, D., Lin, R. &amp; Zhen, X. - Q. (2013) A new species of Austrodecus Hodgson, 1907 (Arthropoda: Pycnogonida: Austrodecidae) from the Southwest Indian Ridge. Zookeys, 349, 73 - 79. https: // doi. org / 10.3897 / zookeys. 349.6170" type="journal article" year="2013">
Wang
<emphasis id="B954313729034F15FE23FBA4FE61FBD6" box="[437,481,1045,1067]" italics="true" pageId="18" pageNumber="419">et al</emphasis>
., 2013
</bibRefCitation>
: 73
</treatmentCitation>
</taxonomicName>
–79.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C33ABEAE29034F15FF01FBE5FA8EFAD9" pageId="18" pageNumber="419" type="materials_examined">
<paragraph id="8B9FED2529034F15FF01FBE5FA8EFAD9" blockId="18.[151,1437,1111,2037]" pageId="18" pageNumber="419">
<emphasis id="B954313729034F15FF01FBE5FE03FB8D" bold="true" box="[151,387,1111,1136]" pageId="18" pageNumber="419">Material examined.</emphasis>
One male (NHMUK 2018.21), Southwest Indian Ocean, Coral Seamount, 41˚ 22.31'S, 42˚ 54.57'E, ROV,
<quantity id="4CD840C029034F15FED5FBCEFE0EFB69" box="[323,398,1148,1172]" metricMagnitude="2" metricUnit="m" metricValue="7.32" pageId="18" pageNumber="419" unit="m" value="732.0">732 m</quantity>
, specimen JC066-1298D, stn 4.38, mooring site, whale bone net,
<date id="FF9ECBE529034F15FB14FBCEFAE0FB69" box="[1154,1376,1148,1173]" pageId="18" pageNumber="419" value="2011-11-20">20 November 2011</date>
.
<materialsCitation id="3B48E77829034F15FAFBFBCEFA8FFB21" ID-GBIF-Occurrence="2013824386" collectingDate="2011-11-20" collectionCode="NHMUK" elevation="732" pageId="18" pageNumber="419" specimenCode="NHMUK 2018.22" specimenCount="1">
One male
<emphasis id="B954313729034F15FF42FB2DFF5DFB45" bold="true" box="[212,221,1183,1208]" pageId="18" pageNumber="419">(</emphasis>
dissected) (
<specimenCode id="DB86455E29034F15FECDFB12FDADFB45" box="[347,557,1184,1208]" collectionCode="NHMUK" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34665" lsid="urn:lsid:biocol.org:col:34665" name="Natural History Museum, London" pageId="18" pageNumber="419" type="Museum">NHMUK 2018.22</specimenCode>
). Southwest Indian Ocean, Coral Seamount, 41˚ 22.31'S, 42˚ 54.58'E, stn 4.38, ROV,
<quantity id="4CD840C029034F15FF4BFB76FEA7FB21" box="[221,295,1220,1244]" metricMagnitude="2" metricUnit="m" metricValue="7.32" pageId="18" pageNumber="419" unit="m" value="732.0">
<elevation id="000D0A1629034F15FF4BFB76FEA7FB21" box="[221,295,1220,1244]" metricMagnitude="2" metricUnit="m" metricValue="7.32" pageId="18" pageNumber="419" unit="m" value="732.0">732 m</elevation>
</quantity>
, specimen JC 066-891, parent 1244, mooring site, on Mango wood,
<date id="FF9ECBE529034F15FBA4FB76FA8FFB21" box="[1074,1295,1220,1245]" pageId="18" pageNumber="419" value="2011-11-20">
<collectingDate id="EFDA320D29034F15FBA4FB76FA8FFB21" box="[1074,1295,1220,1245]" pageId="18" pageNumber="419" value="2011-11-20">20 November 2011</collectingDate>
</date>
</materialsCitation>
.
<materialsCitation id="3B48E77829034F15FA8DFB77FA8AFAD9" ID-GBIF-Occurrence="2013824367" collectingDate="2011-11-20" collectionCode="NHMUK" elevation="732" pageId="18" pageNumber="419" specimenCode="NHMUK 2018.23" specimenCount="1">
Two males, four females, one subadult (
<specimenCode id="DB86455E29034F15FE7EFB5AFD40FAFD" box="[488,704,1256,1280]" collectionCode="NHMUK" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34665" lsid="urn:lsid:biocol.org:col:34665" name="Natural History Museum, London" pageId="18" pageNumber="419" type="Museum">NHMUK 2018.23</specimenCode>
), Southwest Indian Ocean, Coral Seamount, 41˚ 22.31'S, 42˚ 54.58'E, ROV,
<quantity id="4CD840C029034F15FEA9FABEFE08FAD9" box="[319,392,1292,1316]" metricMagnitude="2" metricUnit="m" metricValue="7.32" pageId="18" pageNumber="419" unit="m" value="732.0">
<elevation id="000D0A1629034F15FEA9FABEFE08FAD9" box="[319,392,1292,1316]" metricMagnitude="2" metricUnit="m" metricValue="7.32" pageId="18" pageNumber="419" unit="m" value="732.0">732 m</elevation>
</quantity>
, JC066-1296D, stn 4.38, mooring site,
<collectingMethod id="5261953229034F15FCD7FABFFBA4FAD9" box="[833,1060,1292,1317]" pageId="18" pageNumber="419">on Mango wood net</collectingMethod>
,
<date id="FF9ECBE529034F15FBA6FABEFA8AFAD9" box="[1072,1290,1292,1317]" pageId="18" pageNumber="419" value="2011-11-20">
<collectingDate id="EFDA320D29034F15FBA6FABEFA8AFAD9" box="[1072,1290,1292,1317]" pageId="18" pageNumber="419" value="2011-11-20">20 November 2011</collectingDate>
</date>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C33ABEAE29034F15FF58FA9DFAC4F808" pageId="18" pageNumber="419" type="discussion">
<paragraph id="8B9FED2529034F15FF58FA9DFA95F9B8" blockId="18.[151,1437,1111,2037]" pageId="18" pageNumber="419">
<emphasis id="B954313729034F15FF58FA9DFEBBFAB5" bold="true" box="[206,315,1327,1352]" pageId="18" pageNumber="419">Remarks</emphasis>
.
<taxonomicName id="4C2096A629034F15FEDFFA9DFDB6FAB5" box="[329,566,1327,1352]" class="Pycnogonida" family="Austrodecidae" genus="Austrodecus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pantopoda" pageId="18" pageNumber="419" phylum="Arthropoda" rank="species" species="bamberi">
<emphasis id="B954313729034F15FEDFFA9DFDB6FAB5" box="[329,566,1327,1352]" italics="true" pageId="18" pageNumber="419">Austrodecus bamberi</emphasis>
</taxonomicName>
was described from the SWIR based on a single male specimen (
<bibRefCitation id="EFB190D429034F15FA85FA82FF54FA91" author="Wang, J. &amp; Huang, D. &amp; Lin, R. &amp; Zhen, X. - Q." pageId="18" pageNumber="419" pagination="73 - 79" refId="ref29618" refString="Wang, J. Huang, D., Lin, R. &amp; Zhen, X. - Q. (2013) A new species of Austrodecus Hodgson, 1907 (Arthropoda: Pycnogonida: Austrodecidae) from the Southwest Indian Ridge. Zookeys, 349, 73 - 79. https: // doi. org / 10.3897 / zookeys. 349.6170" type="journal article" year="2013">
Wang
<emphasis id="B954313729034F15FACBFA83FA0EFAB5" box="[1373,1422,1327,1352]" italics="true" pageId="18" pageNumber="419">et al</emphasis>
., 2013
</bibRefCitation>
). This collection contains the first record of the female (
<figureCitation id="131BF1A029034F15FCCFFAE6FC67FA91" box="[857,999,1364,1389]" captionStart="PLATE 3" captionStartId="42.[151,234,1740,1762]" captionTargetBox="[151,1436,193,1718]" captionTargetId="figure@42.[151,1436,193,1718]" captionTargetPageId="42" captionText="PLATE 3. Tanystylum tiara sp. nov., holotype male. A, trunk lateral; B, trunk, dorsal; C, trunk anterior view. Sericosura species indeterminate. D, trunk dorsal; E, trunk, lateral. Austrodecus bamberi. F, trunk dorsal; G, trunk, lateral. Austrodecus taylorae sp. nov., holotype, male. H, trunk dorsal." httpUri="https://zenodo.org/record/2598991/files/figure.png" pageId="18" pageNumber="419">Plate 3 F, G</figureCitation>
). Gonopores are not evident and apart from the presence or absence of femoral cement gland ducts there is seemingly no apparent means of distinguishing the sexes. The largest specimen in this collection is a female, but its size may be an indication of advanced maturity rather than sexual dimorphism. All other specimens, both male and female are of a similar size. In one male specimen, the cement gland is absent on two femora from opposite sides of the body and on different legs. Only a few comments are provided to complement the original description. The minor differences can possibly be attributed to interpretation of morphological characters and perhaps intraspecific variation.
</paragraph>
<paragraph id="8B9FED2529034F15FF51F9E2FB56F898" blockId="18.[151,1437,1111,2037]" pageId="18" pageNumber="419">
I agree with
<bibRefCitation id="EFB190D429034F15FECFF9FDFD8CF995" author="Child, C. A." box="[345,524,1615,1640]" pageId="18" pageNumber="419" pagination="49 - 99" refId="ref26911" refString="Child, C. A. (1994 b) Antarctic and subantarctic Pycnogonida: 2. The family Austrodecidae. Biology of the Antarctic Seas, 23, Antarctic Research Series, 63, 49 - 99." type="journal article" year="1994">Child’s (1994b)</bibRefCitation>
diagnosis of this family, in particular that the palps originate from anterolateral extensions of the cephalon. In this material the segmentation line shown at the base of the first palp segment by
<bibRefCitation id="EFB190D429034F15FF01F92AFEE5F94D" author="Wang, J. &amp; Huang, D. &amp; Lin, R. &amp; Zhen, X. - Q." box="[151,357,1687,1712]" pageId="18" pageNumber="419" pagination="73 - 79" refId="ref29618" refString="Wang, J. Huang, D., Lin, R. &amp; Zhen, X. - Q. (2013) A new species of Austrodecus Hodgson, 1907 (Arthropoda: Pycnogonida: Austrodecidae) from the Southwest Indian Ridge. Zookeys, 349, 73 - 79. https: // doi. org / 10.3897 / zookeys. 349.6170" type="journal article" year="2013">
Wang
<emphasis id="B954313729034F15FF76F92BFE99F94D" box="[224,281,1687,1712]" italics="true" pageId="18" pageNumber="419">et al.</emphasis>
(2013
</bibRefCitation>
,
<figureCitation id="131BF1A029034F15FEE4F925FE6BF94D" box="[370,491,1687,1712]" captionStart="FIGURE 1" captionStartId="2.[151,250,1978,2000]" captionTargetBox="[167,1414,976,1920]" captionTargetId="figure@2.[150,1437,958,1921]" captionTargetPageId="2" captionText="FIGURE 1. Cruise track for JC66/67 from JC66 Cruise Report, (Rogers et al., 2012) showing the six Southwest Indian Ridge sites visited (the hydrothermal vent site studied during JC067 is indicated by the solid circle)." httpUri="https://zenodo.org/record/2598947/files/figure.png" pageId="18" pageNumber="419">Fig. 1B, C</figureCitation>
) is not present in which case the palps are five-segmented, not six-segmented. The first pair of legs is longer than legs 2–4 as evidenced in the measurements of first and third legs (
<bibRefCitation id="EFB190D429034F15FB5AF90EFA11F929" author="Wang, J. &amp; Huang, D. &amp; Lin, R. &amp; Zhen, X. - Q." box="[1228,1425,1724,1749]" pageId="18" pageNumber="419" pagination="73 - 79" refId="ref29618" refString="Wang, J. Huang, D., Lin, R. &amp; Zhen, X. - Q. (2013) A new species of Austrodecus Hodgson, 1907 (Arthropoda: Pycnogonida: Austrodecidae) from the Southwest Indian Ridge. Zookeys, 349, 73 - 79. https: // doi. org / 10.3897 / zookeys. 349.6170" type="journal article" year="2013">
Wang
<emphasis id="B954313729034F15FA83F90FFACDF928" box="[1301,1357,1724,1749]" italics="true" pageId="18" pageNumber="419">et al.</emphasis>
2013
</bibRefCitation>
). The dorsodistal spines on the femur and tibiae are over three-times the width of the corresponding segment. The ovigers are clearly four-segmented and are attached to a prominent extension on the ventral surface of the cephalon (
<figureCitation id="131BF1A029034F15FF09F895FE8AF8BD" box="[159,266,1831,1856]" captionStart="FIGURE 10" captionStartId="19.[151,250,589,611]" captionTargetBox="[172,1263,183,540]" captionTargetId="figure@19.[150,1436,178,585]" captionTargetPageId="19" captionText="FIGURE 10. Austrodecus bamberi. male A, dorsal process, third coxa; B, one of two dorsodistal tubercles on lateral process; C, oviger." httpUri="https://zenodo.org/record/2598965/files/figure.png" pageId="18" pageNumber="419">Fig. 10C</figureCitation>
).
<taxonomicName id="4C2096A629034F15FEB6F89AFE02F8BD" authorityName="Schimkewitsch" authorityYear="1893" box="[288,386,1831,1856]" class="Pycnogonida" family="Austrodecidae" genus="Austrodecus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pantopoda" pageId="18" pageNumber="419" phylum="Arthropoda" rank="species" species="minor">A minor</taxonomicName>
observation is the presence of one or two strong inwardly curved spines on the first palp segment in addition to the four similar spines on segment three. The distal-most spine is shortest.
</paragraph>
<paragraph id="8B9FED2529034F15FF51F8C2FC12F82C" blockId="18.[151,1437,1111,2037]" pageId="18" pageNumber="419">
One specimen was recovered on-board ship from Mango wood deployed as part of the moorings experiment however
<taxonomicName id="4C2096A629034F15FF69F826FE08F850" authorityName="Hodgson" authorityYear="1907" box="[255,392,1940,1965]" class="Pycnogonida" family="Austrodecidae" genus="Austrodecus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pantopoda" pageId="18" pageNumber="419" phylum="Arthropoda" rank="genus">
<emphasis id="B954313729034F15FF69F826FE08F850" box="[255,392,1940,1965]" italics="true" pageId="18" pageNumber="419">Austrodecus</emphasis>
</taxonomicName>
species are morphologically adapted to feeding on bryozoans and thecate hydroids, and it is most likely that this specimen was dislodged from its host substrate.
</paragraph>
<paragraph id="8B9FED2529034F15FF51F86EFAC4F808" blockId="18.[151,1437,1111,2037]" box="[199,1348,2012,2037]" pageId="18" pageNumber="419">The ocular tubercle of the subadult specimen is more erect than that of adults and eyes are not evident.</paragraph>
</subSubSection>
</treatment>
</document>
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