251 lines
30 KiB
XML
251 lines
30 KiB
XML
<document id="A0735DCB95C6285B7C062367A0AE83E0" ID-DOI="10.11646/zootaxa.4040.3.7" ID-GBIF-Dataset="88191a74-d309-4bec-8ca9-ecdcf7dd0a5f" ID-ISSN="1175-5326" ID-Zenodo-Dep="241445" ID-ZooBank="C9FF307A-F3FD-4143-94BE-373E1C651A65" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461336004010" checkinUser="plazi" docAuthor="Darbyshire, Teresa & Brewin, Paul E." docDate="2015" docId="03965655BF41FFAFFF13FBBD9557FD97" docLanguage="en" docName="zt04040p370.pdf" docOrigin="Zootaxa 4040 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Dysponetus antarcticus Darbyshire & Brewin, 2015, n. sp." docType="treatment" docUuid="1D913716-AAF6-4A5E-8279-7A5BE13AA394" docUuidSource="ZooBank" docVersion="8" lastPageNumber="365" masterDocId="FFAF2E2DBF45FFA9FF84FF959441FFAA" masterDocTitle="Three new species of Dysponetus Levinsen, 1879 (Polychaeta: Chrysopetalidae) from the South Atlantic and Southern Ocean, with a re-description of Dysponetus bulbosus Hartmann-Schröder, 1982" masterLastPageNumber="370" masterPageNumber="359" pageNumber="363" updateTime="1698619193387" updateUser="plazi">
|
||
<mods:mods id="49B250557AE5258D8B954806D54CC473" xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo id="88E1CD922B3F6FCE0A58D72D1C9DBEB2">
|
||
<mods:title id="A66034EB00920ABFB982A1701CBC7159">Three new species of Dysponetus Levinsen, 1879 (Polychaeta: Chrysopetalidae) from the South Atlantic and Southern Ocean, with a re-description of Dysponetus bulbosus Hartmann-Schröder, 1982</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name id="E12F84F7EF23232D4C8378DB4C5966A1" type="personal">
|
||
<mods:role id="550E4DD12369A352DF2B373187F3DB78">
|
||
<mods:roleTerm id="01CFACBD05936FBA6005580F1F53BB8E">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="9DB9E5E17801973A0D7223C645E7B1CB">Darbyshire, Teresa</mods:namePart>
|
||
</mods:name>
|
||
<mods:name id="703262D90ACDDCBAAB577DDEC9C22CF9" type="personal">
|
||
<mods:role id="2D1317592BF865AC46640885D67DA0C4">
|
||
<mods:roleTerm id="AC528F3210E20478313B747A522A7B47">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="64ED336B33138A416708832814193FD7">Brewin, Paul E.</mods:namePart>
|
||
</mods:name>
|
||
<mods:typeOfResource id="C53CA641BF86C7C0A64B76F3CE33F7CA">text</mods:typeOfResource>
|
||
<mods:relatedItem id="DE19703644F9691965E76C080304B248" type="host">
|
||
<mods:titleInfo id="59869A9A42F3A4EA3DB85A1ECBDF1C94">
|
||
<mods:title id="60BB3E1CF87FCB007B414DF783A25438">Zootaxa</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part id="E8C27E5AF6DA1B616237BFA3A406F508">
|
||
<mods:date id="D813E5818984F2A007F9C8BC44830CFB">2015</mods:date>
|
||
<mods:detail id="9AD7956EFA7444B2D030642CB3321030" type="volume">
|
||
<mods:number id="06B54DE8166A93A95038CF3491401FB3">4040</mods:number>
|
||
</mods:detail>
|
||
<mods:detail id="E25ED9D01A990C1AC60D99BAB5C6F5D6" type="issue">
|
||
<mods:number id="003A0F7E621A350A5EC1F21EDB319329">3</mods:number>
|
||
</mods:detail>
|
||
<mods:extent id="9EE73295BEF5ADA33FD53F1CC47E5767" unit="page">
|
||
<mods:start id="AD652FFF67A1C725A5F5287D18F889EE">359</mods:start>
|
||
<mods:end id="A436DEEEC74E65B472E3C58DAE437590">370</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:classification id="DFB62C044C60770C3396C6AC59DA23C4">journal article</mods:classification>
|
||
<mods:identifier id="CB79D60685DE7A36FEE4156FAC4F73A9" type="DOI">10.11646/zootaxa.4040.3.7</mods:identifier>
|
||
<mods:identifier id="B97B2DB67DD107C38C31950F29F2C141" type="GBIF-Dataset">88191a74-d309-4bec-8ca9-ecdcf7dd0a5f</mods:identifier>
|
||
<mods:identifier id="F3671CC343C0063388FC6337ADAD91DE" type="ISSN">1175-5326</mods:identifier>
|
||
<mods:identifier id="6F4891DF07DB3A8083463767A439C2BC" type="Zenodo-Dep">241445</mods:identifier>
|
||
<mods:identifier id="945D526EFC7030FBB62A456FB702871E" type="ZooBank">C9FF307A-F3FD-4143-94BE-373E1C651A65</mods:identifier>
|
||
</mods:mods>
|
||
<treatment id="03965655BF41FFAFFF13FBBD9557FD97" ID-DOI="http://doi.org/10.5281/zenodo.6112766" ID-GBIF-Taxon="119644525" ID-Zenodo-Dep="6112766" LSID="urn:lsid:zoobank.org:act:1D913716-AAF6-4A5E-8279-7A5BE13AA394" httpUri="http://treatment.plazi.org/id/03965655BF41FFAFFF13FBBD9557FD97" lastPageId="6" lastPageNumber="365" pageId="4" pageNumber="363">
|
||
<subSubSection id="C325B4C8BF41FFADFF13FBBD969CFB00" pageId="4" pageNumber="363" type="nomenclature">
|
||
<paragraph id="8B80E743BF41FFADFF13FBBD95BAFBE9" blockId="4.[151,507,1064,1125]" box="[151,507,1064,1091]" pageId="4" pageNumber="363">
|
||
<heading id="D0C8502FBF41FFADFF13FBBD95BAFBE9" bold="true" box="[151,507,1064,1091]" fontSize="11" level="1" pageId="4" pageNumber="363" reason="1">
|
||
<emphasis id="B94B3B51BF41FFADFF13FBBD95BAFBE9" bold="true" box="[151,507,1064,1091]" pageId="4" pageNumber="363">
|
||
<taxonomicName id="4C3F9CC0BF41FFADFF13FBBD95F0FBE8" ID-CoL="6DSCG" box="[151,433,1064,1090]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="4" pageNumber="363" phylum="Annelida" rank="species" species="antarcticus" status="sp. nov.">
|
||
<emphasis id="B94B3B51BF41FFADFF13FBBD95F0FBE8" bold="true" box="[151,433,1064,1090]" italics="true" pageId="4" pageNumber="363">Dysponetus antarcticus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A278862ABF41FFADFE3CFBBC95BAFBE9" box="[440,507,1065,1091]" pageId="4" pageNumber="363" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF41FFADFF13FBD9956AFBCE" blockId="4.[151,507,1064,1125]" box="[151,299,1100,1125]" pageId="4" pageNumber="363">
|
||
<figureCitation id="1304FBC6BF41FFADFF13FBD994B2FBCE" box="[151,243,1100,1125]" captionStart="FIGURE 3" captionStartId="5.[151,250,1906,1928]" captionTargetBox="[151,1436,694,1884]" captionTargetId="figure@5.[151,1436,663,1884]" captionTargetPageId="5" captionText="FIGURE 3. Dysponetus antarcticus n. sp.: Holotype (HZM P – 21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d = dorsal (cirrus / cirrophore), la = lateral antenna, ma = median antenna, m = mouth, p = palp, ps = palp scar, v = ventral (cirrus / cirrophore); segment number indicated by numerals]" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="4" pageNumber="363">Figure 3</figureCitation>
|
||
A–D
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF41FFADFF13FB01969CFB00" blockId="4.[151,733,1172,1194]" box="[151,733,1172,1194]" pageId="4" pageNumber="363">
|
||
<bibRef id="529F73B5BF41FFADFF13FB01969CFB00" box="[151,733,1172,1194]" pageId="4" pageNumber="363" type="book chapter">
|
||
<year id="FF97A610BF41FFADFF13FB01948CFB00" box="[151,205,1172,1194]" pageId="4" pageNumber="363">1993</year>
|
||
:
|
||
<title id="F93B0C75BF41FFADFF53FB0096C0FB00" box="[215,641,1172,1194]" pageId="4" pageNumber="363">
|
||
<emphasis id="B94B3B51BF41FFADFF53FB0095ECFB00" box="[215,429,1172,1194]" italics="true" pageId="4" pageNumber="363">Dysponetus bulbosus</emphasis>
|
||
Hartmann-Schröder
|
||
</title>
|
||
: p
|
||
<pagination id="B2F619B7BF41FFADFD13FB019699FB00" box="[663,728,1172,1194]" pageId="4" pageNumber="363" type="pagination">128–9</pagination>
|
||
.
|
||
</bibRef>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C325B4C8BF41FFADFF13FB43955DFA9D" pageId="4" pageNumber="363" type="materials_examined">
|
||
<paragraph id="8B80E743BF41FFADFF13FB43955DFA9D" blockId="4.[151,1437,1238,2022]" pageId="4" pageNumber="363">
|
||
<emphasis id="B94B3B51BF41FFADFF13FB4395C3FB45" bold="true" box="[151,386,1238,1263]" pageId="4" pageNumber="363">Material examined.</emphasis>
|
||
South of King George
|
||
<collectingCountry id="F328A7D3BF41FFADFD0AFB439694FB45" box="[654,725,1238,1263]" name="Iceland" pageId="4" pageNumber="363">Island</collectingCountry>
|
||
,
|
||
<collectingCountry id="F328A7D3BF41FFADFD66FB43971BFB45" box="[738,858,1238,1263]" name="Antarctica" pageId="4" pageNumber="363">Antarctica</collectingCountry>
|
||
, Sta. near O’Higgins (
|
||
<geoCoordinate id="EE0B8184BF41FFADFBDDFB4390A0FB45" box="[1113,1249,1238,1263]" direction="south" orientation="latitude" pageId="4" pageNumber="363" precision="9" value="-63.008167">63° 00.49′S</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="EE0B8184BF41FFADFB6AFB4391D1FB45" box="[1262,1424,1238,1263]" direction="west" orientation="longitude" pageId="4" pageNumber="363" precision="9" value="-57.1575">057° 09.45′W</geoCoordinate>
|
||
), very fine sand with Bryozoa, gorgonians, much detritus,
|
||
<quantity id="4CC74AA6BF41FFADFC8AFB6E9709FAB8" box="[782,840,1275,1299]" metricMagnitude="1" metricUnit="m" metricValue="9.7" pageId="4" pageNumber="363" unit="m" value="97.0">97 m</quantity>
|
||
,
|
||
<typeStatus id="548459E1BF41FFADFCD7FB6F97F4FAB9" box="[851,949,1274,1299]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
(
|
||
<collectionCode id="ED2E7F86BF41FFADFC47FB6E9042FAB9" box="[963,1027,1275,1299]" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="4" pageNumber="363">ZMH</collectionCode>
|
||
<collectionCode id="ED2E7F86BF41FFADFB8EFB6E9062FAB9" box="[1034,1059,1275,1299]" pageId="4" pageNumber="363">P-</collectionCode>
|
||
21914)
|
||
<typeStatus id="548459E1BF41FFADFBFCFB6E9099FAB9" box="[1144,1240,1275,1299]" pageId="4" pageNumber="363" type="paratype">paratype</typeStatus>
|
||
(
|
||
<collectionCode id="ED2E7F86BF41FFADFB63FB6E9166FAB9" box="[1255,1319,1275,1299]" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="4" pageNumber="363">ZMH</collectionCode>
|
||
<collectionCode id="ED2E7F86BF41FFADFAA9FB6E9107FAB9" box="[1325,1350,1275,1299]" pageId="4" pageNumber="363">P-</collectionCode>
|
||
27740),
|
||
<date id="FF81C183BF41FFADFF13FA8A9558FA9D" box="[151,281,1311,1335]" pageId="4" pageNumber="363" value="1991-12-22">22.12.1991</date>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C325B4C8BF41FFACFF43FAD09173FDC9" lastPageId="5" lastPageNumber="364" pageId="4" pageNumber="363" type="description">
|
||
<paragraph id="8B80E743BF41FFADFF43FAD09576FA44" blockId="4.[151,1437,1238,2022]" pageId="4" pageNumber="363">
|
||
<emphasis id="B94B3B51BF41FFADFF43FAD09518FAF4" bold="true" box="[199,345,1349,1374]" pageId="4" pageNumber="363">Description.</emphasis>
|
||
<typeStatus id="548459E1BF41FFADFEE0FAD0958DFAF4" box="[356,460,1349,1374]" pageId="4" pageNumber="363" type="holotype">Holotype</typeStatus>
|
||
posteriorly incomplete,
|
||
<quantity id="4CC74AA6BF41FFADFD6FFAD39704FAF7" box="[747,837,1350,1374]" metricMagnitude="-3" metricUnit="m" metricValue="2.7" pageId="4" pageNumber="363" unit="mm" value="2.7">2.7 mm</quantity>
|
||
long for 15 chaetigers (15th chaetiger removed for SEM).
|
||
<typeStatus id="548459E1BF41FFADFF6EFAFF950DFA28" box="[234,332,1386,1410]" pageId="4" pageNumber="363" type="paratype">Paratype</typeStatus>
|
||
whole, juvenile,
|
||
<quantity id="4CC74AA6BF41FFADFD97FAFF9638FA2B" box="[531,633,1386,1410]" metricMagnitude="-3" metricUnit="m" metricValue="1.29" pageId="4" pageNumber="363" unit="mm" value="1.29">1.29 mm</quantity>
|
||
for 14 chaetigers. Maximum width measured both between segments,
|
||
<quantity id="4CC74AA6BF41FFADFF13FA1B94AEFA0F" box="[151,239,1422,1446]" metricMagnitude="-4" metricUnit="m" metricValue="7.0" pageId="4" pageNumber="363" unit="mm" value="0.7">0.7 mm</quantity>
|
||
(
|
||
<typeStatus id="548459E1BF41FFADFF7BFA189524FA0C" box="[255,357,1421,1446]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
) and
|
||
<quantity id="4CC74AA6BF41FFADFE23FA18964FFA0F" box="[423,526,1421,1446]" metricMagnitude="-4" metricUnit="m" metricValue="2.6" pageId="4" pageNumber="363" unit="mm" value="0.26">0.26 mm</quantity>
|
||
(
|
||
<typeStatus id="548459E1BF41FFADFD9AFA1B96C5FA0C" box="[542,644,1422,1446]" pageId="4" pageNumber="363" type="paratype">paratype</typeStatus>
|
||
), and including chaetae, 3.0 mm (
|
||
<typeStatus id="548459E1BF41FFADFB8FFA189030FA0C" box="[1035,1137,1421,1446]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
) and
|
||
<quantity id="4CC74AA6BF41FFADFB37FA1B9158FA0F" box="[1203,1305,1422,1446]" metricMagnitude="-3" metricUnit="m" metricValue="1.07" pageId="4" pageNumber="363" unit="mm" value="1.07">1.07 mm</quantity>
|
||
(
|
||
<typeStatus id="548459E1BF41FFADFAAEFA1B91D0FA0C" box="[1322,1425,1422,1446]" pageId="4" pageNumber="363" type="paratype">paratype</typeStatus>
|
||
). Description based on
|
||
<typeStatus id="548459E1BF41FFADFE1AFA249641FA60" box="[414,512,1457,1482]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
except where specified. Measurements and counts of chaetae and cirri from
|
||
<typeStatus id="548459E1BF41FFADFF13FA4094B8FA44" box="[151,249,1493,1518]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
only.
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF41FFADFF43FA6C94B0F99C" blockId="4.[151,1437,1238,2022]" pageId="4" pageNumber="363">Body shape cylindrical, ventrally flattened, tapered over last 2–3 segments at posterior. Colour pink-brown in alcohol.</paragraph>
|
||
<paragraph id="8B80E743BF41FFADFF43F9D49759F898" blockId="4.[151,1437,1238,2022]" pageId="4" pageNumber="363">
|
||
Prostomium sub-rectangular (
|
||
<figureCitation id="1304FBC6BF41FFADFDA0F9D4962DF9F0" box="[548,620,1601,1626]" captionStart="FIGURE 3" captionStartId="5.[151,250,1906,1928]" captionTargetBox="[151,1436,694,1884]" captionTargetId="figure@5.[151,1436,663,1884]" captionTargetPageId="5" captionText="FIGURE 3. Dysponetus antarcticus n. sp.: Holotype (HZM P – 21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d = dorsal (cirrus / cirrophore), la = lateral antenna, ma = median antenna, m = mouth, p = palp, ps = palp scar, v = ventral (cirrus / cirrophore); segment number indicated by numerals]" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="4" pageNumber="363">Fig. 3</figureCitation>
|
||
A), only slightly wider anteriorly. Eyes absent or degraded beyond visibility (see Remarks for comment on presence of eyes). Median antenna, present on
|
||
<typeStatus id="548459E1BF41FFADFBF7F9F39092F9D4" box="[1139,1235,1638,1662]" pageId="4" pageNumber="363" type="paratype">paratype</typeStatus>
|
||
but not
|
||
<typeStatus id="548459E1BF41FFADFAB7F9F091D9F9D4" box="[1331,1432,1637,1662]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
, anterodorsally attached, same shape but slightly shorter than lateral antennae. Lateral antennae bottle-shaped (
|
||
<figureCitation id="1304FBC6BF41FFADFAEBF91C94E4F96C" captionStart="FIGURE 3" captionStartId="5.[151,250,1906,1928]" captionTargetBox="[151,1436,694,1884]" captionTargetId="figure@5.[151,1436,663,1884]" captionTargetPageId="5" captionText="FIGURE 3. Dysponetus antarcticus n. sp.: Holotype (HZM P – 21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d = dorsal (cirrus / cirrophore), la = lateral antenna, ma = median antenna, m = mouth, p = palp, ps = palp scar, v = ventral (cirrus / cirrophore); segment number indicated by numerals]" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="4" pageNumber="363">Fig. 3</figureCitation>
|
||
B), 1 remaining on
|
||
<typeStatus id="548459E1BF41FFADFE0CF93895ABF96C" box="[392,490,1709,1734]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
(150 µm long), arising immediately dorsal to palps. Palps (190 µm long) directed posteriorly (
|
||
<figureCitation id="1304FBC6BF41FFADFEA7F9449529F940" box="[291,360,1745,1770]" captionStart="FIGURE 3" captionStartId="5.[151,250,1906,1928]" captionTargetBox="[151,1436,694,1884]" captionTargetId="figure@5.[151,1436,663,1884]" captionTargetPageId="5" captionText="FIGURE 3. Dysponetus antarcticus n. sp.: Holotype (HZM P – 21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d = dorsal (cirrus / cirrophore), la = lateral antenna, ma = median antenna, m = mouth, p = palp, ps = palp scar, v = ventral (cirrus / cirrophore); segment number indicated by numerals]" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="4" pageNumber="363">Fig. 3</figureCitation>
|
||
B), stouter than antennae or cirri, approximately 3 times as long as wide. Nuchal organs not observed. Single mouth appendage small, difficult to discern. Single pair of small jaws, barely visible through body even with methyl green staining. Proboscis not observed.
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF41FFADFF43F8A8978AF86B" blockId="4.[151,1437,1238,2022]" pageId="4" pageNumber="363">First two segments elevated dorsally with four pairs tentacular cirri, dorsal pairs lost, ventral pairs of similar shape and size as following ventral cirri. First segment achaetous, second segment with notochaetae only, situated anterior to dorsal tentacular cirrus, easily confused with first segment. Third and following segments all biramous, dorsal, ventral cirri, noto- and neurochaetae present. Cirrophores present.</paragraph>
|
||
<paragraph id="8B80E743BF41FFACFF43F85894FBFEE9" blockId="4.[151,1437,1238,2022]" lastBlockId="5.[151,1437,151,611]" lastPageId="5" lastPageNumber="364" pageId="4" pageNumber="363">
|
||
Notopodial lobes reduced. Dorsal cirri long (307–373 µm, few remaining on
|
||
<typeStatus id="548459E1BF41FFADFBA9F85890D3F84C" box="[1069,1170,1997,2022]" pageId="4" pageNumber="363" type="holotype">holotype</typeStatus>
|
||
, only present mid-body and posterior), slender, slightly shorter than notochaetae. Cirrophores present, styles slightly proximally swollen, distally tapering, tips blunt. Notochaetae very long, greater than body width, inserted slightly dorsal and anterior to dorsal cirrus, directed posteriorly and laterally, crossing dorsum by 10th chaetiger. Notochaetae oval in crosssection (
|
||
<figureCitation id="1304FBC6BF40FFACFF73FE93957AFEB5" box="[247,315,262,287]" captionStart="FIGURE 3" captionStartId="5.[151,250,1906,1928]" captionTargetBox="[151,1436,694,1884]" captionTargetId="figure@5.[151,1436,663,1884]" captionTargetPageId="5" captionText="FIGURE 3. Dysponetus antarcticus n. sp.: Holotype (HZM P – 21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d = dorsal (cirrus / cirrophore), la = lateral antenna, ma = median antenna, m = mouth, p = palp, ps = palp scar, v = ventral (cirrus / cirrophore); segment number indicated by numerals]" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="5" pageNumber="364">Fig. 3</figureCitation>
|
||
C), with alternating, offset sharp denticles, up to 20. Notochaetal count, mid-body segments, up to 23.
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF40FFACFF43FEDB9536FDB1" blockId="5.[151,1437,151,611]" pageId="5" pageNumber="364">
|
||
Neuropodia well developed, with anterior ligule. Compound neurochaetae, with heterogomph shafts and bidentate falcigerous blades with short, robust teeth on the blade (
|
||
<figureCitation id="1304FBC6BF40FFACFC04FEE79785FE21" box="[896,964,370,395]" captionStart="FIGURE 3" captionStartId="5.[151,250,1906,1928]" captionTargetBox="[151,1436,694,1884]" captionTargetId="figure@5.[151,1436,663,1884]" captionTargetPageId="5" captionText="FIGURE 3. Dysponetus antarcticus n. sp.: Holotype (HZM P – 21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d = dorsal (cirrus / cirrophore), la = lateral antenna, ma = median antenna, m = mouth, p = palp, ps = palp scar, v = ventral (cirrus / cirrophore); segment number indicated by numerals]" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="5" pageNumber="364">Fig. 3</figureCitation>
|
||
D); longer than body width. Neurochaetal count, mid-body segments, at least 20–30. At least 1 accessory simple chaeta present, similar to but smaller than notochaetae, inserted distally and anteriorly on neuropodial lobe. Ventral cirri of similar shape to but smaller and shorter than dorsal cirri (length 67–227 µm, longest on median chaetigers), arising ventral to neuropodial lobe, directed posteriorly.
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF40FFACFF43FDB39173FDC9" blockId="5.[151,1437,151,611]" pageId="5" pageNumber="364">
|
||
Final segment (
|
||
<typeStatus id="548459E1BF40FFACFEF1FDB29598FD95" box="[373,473,551,575]" pageId="5" pageNumber="364" type="paratype">paratype</typeStatus>
|
||
) lacking chaetae. Pygidium with single large projection (35 µm), cylindrical, distally tapering, inserted posteroventrally, anus terminal, some signs of damage. Posterior possibly regenerating.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="DF40B7CBBF40FFACFF13F8E7953EF84E" httpUri="https://zenodo.org/record/241448/files/figure.png" pageId="5" pageNumber="364" targetBox="[151,1436,694,1884]" targetPageId="5">
|
||
<paragraph id="8B80E743BF40FFACFF13F8E7953EF84E" blockId="5.[151,1436,1906,2020]" pageId="5" pageNumber="364">
|
||
<emphasis id="B94B3B51BF40FFACFF13F8E79554F82D" bold="true" box="[151,277,1906,1928]" pageId="5" pageNumber="364">FIGURE 3.</emphasis>
|
||
<taxonomicName id="4C3F9CC0BF40FFACFE99F8E6964CF822" box="[285,525,1907,1928]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="5" pageNumber="364" phylum="Annelida" rank="species" species="antarcticus" status="sp. nov.">
|
||
<emphasis id="B94B3B51BF40FFACFE99F8E6964CF822" box="[285,525,1907,1928]" italics="true" pageId="5" pageNumber="364">Dysponetus antarcticus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B94B3B51BF40FFACFD91F8E79611F82D" bold="true" box="[533,592,1906,1927]" pageId="5" pageNumber="364">
|
||
<taxonomicNameLabel id="A278862ABF40FFACFD91F8E79611F82D" box="[533,592,1906,1927]" pageId="5" pageNumber="364" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
: Holotype (HZM P–21914) A. anterior end, dorsal view; B. anterior end, ventral view; C. Notochaetae; D. Neurochaeta tip. Only a few chaetae drawn in each case for clarity. [d=dorsal (cirrus/cirrophore), la=lateral antenna, ma=median antenna, m=mouth, p=palp, ps = palp scar, v=ventral (cirrus/cirrophore); segment number indicated by numerals]
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C325B4C8BF43FFAFFF43FF02979FFF7E" pageId="6" pageNumber="365" type="etymology">
|
||
<paragraph id="8B80E743BF43FFAFFF43FF029091FF1A" blockId="6.[151,1436,151,573]" box="[199,1232,151,176]" pageId="6" pageNumber="365">
|
||
<emphasis id="B94B3B51BF43FFAFFF43FF02950FFF1A" bold="true" box="[199,334,151,176]" pageId="6" pageNumber="365">Etymology.</emphasis>
|
||
This species is named after
|
||
<collectingCountry id="F328A7D3BF43FFAFFD0FFF029742FF1A" box="[651,771,151,176]" name="Antarctica" pageId="6" pageNumber="365">Antarctica</collectingCountry>
|
||
, the locality from which it was collected.
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF43FFAFFF43FF29979FFF7E" blockId="6.[151,1436,151,573]" box="[199,990,188,213]" pageId="6" pageNumber="365">
|
||
<emphasis id="B94B3B51BF43FFAFFF43FF29956BFF7F" bold="true" box="[199,298,188,213]" pageId="6" pageNumber="365">Habitat.</emphasis>
|
||
Very fine sand with bryozoan, gorgonians and detritus;
|
||
<specimenCount id="9D392CCABF43FFAFFC1AFF29979FFF7E" box="[926,990,188,212]" pageId="6" pageNumber="365" type="generic">
|
||
<quantity id="4CC74AA6BF43FFAFFC1AFF299798FF7E" box="[926,985,188,212]" metricMagnitude="1" metricUnit="m" metricValue="9.7" pageId="6" pageNumber="365" unit="m" value="97.0">97 m</quantity>
|
||
.
|
||
</specimenCount>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C325B4C8BF43FFAFFF43FF4A976CFF52" box="[199,813,223,248]" pageId="6" pageNumber="365" type="distribution">
|
||
<paragraph id="8B80E743BF43FFAFFF43FF4A976CFF52" blockId="6.[151,1436,151,573]" box="[199,813,223,248]" pageId="6" pageNumber="365">
|
||
<emphasis id="B94B3B51BF43FFAFFF43FF4A9521FF52" bold="true" box="[199,352,223,248]" pageId="6" pageNumber="365">Distribution.</emphasis>
|
||
South of King George
|
||
<collectingCountry id="F328A7D3BF43FFAFFDE1FF4A96EDFF52" box="[613,684,223,248]" name="Iceland" pageId="6" pageNumber="365">Island</collectingCountry>
|
||
,
|
||
<collectingCountry id="F328A7D3BF43FFAFFD3CFF4A976CFF52" box="[696,813,223,248]" name="Antarctica" pageId="6" pageNumber="365">Antarctica</collectingCountry>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C325B4C8BF43FFAFFF43FE919557FD97" pageId="6" pageNumber="365" type="discussion">
|
||
<paragraph id="8B80E743BF43FFAFFF43FE919617FECE" blockId="6.[151,1436,151,573]" pageId="6" pageNumber="365">
|
||
<emphasis id="B94B3B51BF43FFAFFF43FE91957AFEB7" bold="true" box="[199,315,260,285]" pageId="6" pageNumber="365">Remarks.</emphasis>
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFEC6FE90960BFEB6" box="[322,586,261,284]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="antarcticus" status="sp. nov.">
|
||
<emphasis id="B94B3B51BF43FFAFFEC6FE90960BFEB6" box="[322,586,261,284]" italics="true" pageId="6" pageNumber="365">Dysponetus antarcticus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B94B3B51BF43FFAFFDD5FE9196D1FEB7" bold="true" box="[593,656,260,285]" pageId="6" pageNumber="365">
|
||
<taxonomicNameLabel id="A278862ABF43FFAFFDD5FE9196D1FEB7" box="[593,656,260,285]" pageId="6" pageNumber="365" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
has 4 eyes (described as present in Hartmann-Schröder’s 1993 paper although now faded by time), ventral cirri on segment 3, elongated palps, single mouth appendage and an anterodorsally inserted median antenna.
|
||
</paragraph>
|
||
<paragraph id="8B80E743BF43FFAFFF43FEFA9557FD97" blockId="6.[151,1436,151,573]" pageId="6" pageNumber="365">
|
||
The presence of ventral cirri on segment 3 places
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFC96FEE4905AFE2D" box="[786,1051,368,392]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="antarcticus">
|
||
<emphasis id="B94B3B51BF43FFAFFC96FEE4905AFE2D" box="[786,1051,368,392]" italics="true" pageId="6" pageNumber="365">Dysponetus antarcticus</emphasis>
|
||
</taxonomicName>
|
||
initially closest to
|
||
<emphasis id="B94B3B51BF43FFAFFB7AFEE49562FE06" italics="true" pageId="6" pageNumber="365">
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFB7AFEE49133FE22" box="[1278,1394,369,392]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="caecus">D. caecus</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFA05FEE49562FE06" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="paleophorus">D. paleophorus</taxonomicName>
|
||
</emphasis>
|
||
and
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFEE4FE0095B7FE06" box="[352,502,405,428]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="pygmaeus">
|
||
<emphasis id="B94B3B51BF43FFAFFEE4FE0095B7FE06" box="[352,502,405,428]" italics="true" pageId="6" pageNumber="365">D. pygmaeus</emphasis>
|
||
</taxonomicName>
|
||
and, potentially,
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFD47FE009027FE06" authority="Webster & Benedict, 1887" authorityName="Webster & Benedict" authorityYear="1887" box="[707,1126,404,429]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="hebes">
|
||
<emphasis id="B94B3B51BF43FFAFFD47FE009769FE06" box="[707,808,404,428]" italics="true" pageId="6" pageNumber="365">D. hebes</emphasis>
|
||
<bibRefCitation id="EFAE9AB2BF43FFAFFCB7FE019027FE06" author="Webster" box="[819,1126,404,429]" pageId="6" pageNumber="365" refString="Webster, H. E. & Benedict, J. E. (1887) The Annelida Chaetopoda, from Eastport, Maine. U. S. Commission of Fish & Fisheries, Report of the United States Commission of Fish and Fisheries, Washington, 1885, part 13, II. Appendix to report of commissioner, D. 22, 707 - 758, pls 1 - 8." type="journal article" year="1887">Webster & Benedict, 1887</bibRefCitation>
|
||
</taxonomicName>
|
||
for which the character is undescribed. However, eyes are absent in all of these species except for
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFC68FE2C9013FE7A" box="[1004,1106,440,464]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="hebes">
|
||
<emphasis id="B94B3B51BF43FFAFFC68FE2C9013FE7A" box="[1004,1106,440,464]" italics="true" pageId="6" pageNumber="365">D. hebes</emphasis>
|
||
</taxonomicName>
|
||
which has two. In addition,
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFF13FE489525FE5E" box="[151,356,476,500]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="hebes">
|
||
<emphasis id="B94B3B51BF43FFAFFF13FE489525FE5E" box="[151,356,476,500]" italics="true" pageId="6" pageNumber="365">Dysponetus hebes</emphasis>
|
||
</taxonomicName>
|
||
, has sphaerical palps, an anteriorly inserted median antenna and a double mouth appendage, whereas
|
||
<taxonomicName id="4C3F9CC0BF43FFAFFF7EFD949643FDBD" box="[250,514,512,536]" class="Polychaeta" family="Chrysopetalidae" genus="Dysponetus" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="365" phylum="Annelida" rank="species" species="antarcticus">
|
||
<emphasis id="B94B3B51BF43FFAFFF7EFD949643FDBD" box="[250,514,512,536]" italics="true" pageId="6" pageNumber="365">Dysponetus antarcticus</emphasis>
|
||
</taxonomicName>
|
||
has elongated palps, an anterodorsally inserted median antenna and single mouth appendage.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |