treatments-xml/data/33/59/8A/33598A71FFE72A3AFF11887B9856FC49.xml

<document id="E3AFFE796037624E29B035650303A129" ID-DOI="10.11646/zootaxa.5446.1.2" ID-ISSN="1175-5326" ID-Zenodo-Dep="11084565" ID-ZooBank="A68A7F27-1AD4-4DC5-A39D-2D9A67624C63" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1714390397953" checkinUser="plazi" docAuthor="Bick, Andreas &amp; Zettler, Michael L." docDate="2024" docId="33598A71FFE72A3AFF11887B9856FC49" docLanguage="en" docName="zootaxa.5446.1.2.pdf" docOrigin="Zootaxa 5446 (1)" docSource="http://dx.doi.org/10.11646/zootaxa.5446.1.2" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Amphitritides skeletonensis Bick &amp; Zettler 2024, sp. nov." docType="treatment" docVersion="2" lastPageNumber="61" masterDocId="CF60F209FFEA2A29FF868D6D9952FFEC" masterDocTitle="Description of three new species of Amphitritides Augener, 1922 (Terebellida, Annelida) from the coast of Namibia (South West Africa)" masterLastPageNumber="64" masterPageNumber="42" pageNumber="55" updateTime="1714390916314" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
<mods:mods id="0C034E1CB1EF443E9D92F2DCF4AF1993" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="EF1C235A8DE6A1BDE0B4CD60E5DEFFE1">
<mods:title id="3B1FBFE410B5E30E2F91DE43820ACB39">Description of three new species of Amphitritides Augener, 1922 (Terebellida, Annelida) from the coast of Namibia (South West Africa)</mods:title>
</mods:titleInfo>
<mods:name id="E385E14469052D6F90E951D2F04E2BE3" type="personal">
<mods:role id="A66F99A57D18AD69F1316929022C96D6">
<mods:roleTerm id="3DE16B8A7F261E5DAD137A8873FAA6F3">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="A17DA7C104E22EB74159708F8DBE2990">Bick, Andreas</mods:namePart>
<mods:affiliation id="DADC00E8B5AB0E9B87D240E6A6C1FE27">Universität Rostock, Institut fuer Biowissenschaften, Allgemeine &amp; Spezielle Zoologie, Universitaetsplatz 2, D- 18055 Rostock, Germany</mods:affiliation>
</mods:name>
<mods:name id="73A28447CA2DAD0D82179320692E4B5B" type="personal">
<mods:role id="71D2ABEC678CE5C9344758FA3672EDB1">
<mods:roleTerm id="2C280A3A5758285A7B0B693AB8426E90">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="FD57235CBCCFEF30198C46C87D78448A">Zettler, Michael L.</mods:namePart>
<mods:affiliation id="028265572F44B3AF75281DC97D2097EA">Leibniz Institute for Baltic Sea Research, Biological Oceanography, Seestrasse 15, D- 18119 Rostock, Germany</mods:affiliation>
</mods:name>
<mods:typeOfResource id="9E58D39E10AFEA819604A8E17D7C4904">text</mods:typeOfResource>
<mods:relatedItem id="6F93E7680EB0F9AF0CD320D7A7C77FE4" type="host">
<mods:titleInfo id="C6D25A2E7B8608364F77913C04FD9F35">
<mods:title id="6D0C0C1193DCFD28F744ECE83B020E85">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="B914FC0BD55902970D0C0551A4D6F256">
<mods:date id="87E15428415266C4384B181CCBC79284">2024</mods:date>
<mods:detail id="A8A2E034C622C464380CFE785ABCE1FC" type="pubDate">
<mods:number id="B2CAE18E10EAF0EA85602A0BE01354D5">2024-04-29</mods:number>
</mods:detail>
<mods:detail id="099D171EB8D04E276085839215B1F434" type="volume">
<mods:number id="05E1FC8B0BFFC2BDD30EEF73F231699C">5446</mods:number>
</mods:detail>
<mods:detail id="DBCDB83AC5F4CB2262B6B4EE79658D89" type="issue">
<mods:number id="D84EEBB39DDDCB3F49A6449E1D7DDF81">1</mods:number>
</mods:detail>
<mods:extent id="FE379E73EB2506E40A56E37985962FEC" unit="page">
<mods:start id="E107C748955C6D991E578F90B992AE6B">42</mods:start>
<mods:end id="D8468CB9241DB48950AD0C280658817B">64</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location id="4BAA31250AB10F8B0D8862FC68FA0699">
<mods:url id="E58FC38A3A7C3891927F50B5F258DC35">http://dx.doi.org/10.11646/zootaxa.5446.1.2</mods:url>
</mods:location>
<mods:classification id="EE641A2C9E795AF4739802FA603FE127">journal article</mods:classification>
<mods:identifier id="F12350856154E6675ACF46921C126787" type="DOI">10.11646/zootaxa.5446.1.2</mods:identifier>
<mods:identifier id="0DEFFE39C6EF438F40DFC482EA83F2F2" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="0D75A0FAF154E2869F733526DAF8FCC9" type="Zenodo-Dep">11084565</mods:identifier>
<mods:identifier id="5CA43F92205E21C6461580A7707F62DF" type="ZooBank">A68A7F27-1AD4-4DC5-A39D-2D9A67624C63</mods:identifier>
</mods:mods>
<treatment id="33598A71FFE72A3AFF11887B9856FC49" ID-DOI="http://doi.org/10.5281/zenodo.11084577" ID-Zenodo-Dep="11084577" LSID="urn:lsid:plazi:treatment:33598A71FFE72A3AFF11887B9856FC49" httpUri="http://treatment.plazi.org/id/33598A71FFE72A3AFF11887B9856FC49" lastPageId="19" lastPageNumber="61" pageId="13" pageNumber="55">
<subSubSection id="F3EA68ECFFE72A24FF11887B9B1AFADD" box="[151,584,1302,1329]" pageId="13" pageNumber="55" type="nomenclature">
<paragraph id="BB4F3B67FFE72A24FF11887B9B1AFADD" blockId="13.[151,584,1302,1365]" box="[151,584,1302,1329]" pageId="13" pageNumber="55">
<heading id="E0078C0BFFE72A24FF11887B9B1AFADD" bold="true" box="[151,584,1302,1329]" fontSize="11" level="1" pageId="13" pageNumber="55" reason="1">
<emphasis id="8984E775FFE72A24FF11887B9B1AFADD" bold="true" box="[151,584,1302,1329]" pageId="13" pageNumber="55">
<taxonomicName id="7CF040E4FFE72A24FF11887B98B1FADD" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[151,483,1302,1329]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="13" pageNumber="55" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFE72A24FF11887B98B1FADD" bold="true" box="[151,483,1302,1329]" italics="true" pageId="13" pageNumber="55">Amphitritides skeletonensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="92B75A0EFFE72A24FE6C887A9B1AFADD" box="[490,584,1303,1329]" pageId="13" pageNumber="55" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFE72A24FF11885698C5FAB9" box="[151,407,1339,1365]" pageId="13" pageNumber="55" type="description">
<paragraph id="BB4F3B67FFE72A24FF11885698C5FAB9" blockId="13.[151,584,1302,1365]" box="[151,407,1339,1365]" pageId="13" pageNumber="55">
(
<figureCitation id="23CB27E2FFE72A24FF1988569841FAB9" box="[159,275,1339,1365]" captionStart-0="FIGURE 8" captionStart-1="FIGURE 9" captionStart-2="FIGURE 10" captionStartId-0="14.[152,255,1891,1915]" captionStartId-1="15.[152,255,1792,1816]" captionStartId-2="16.[152,255,1874,1898]" captionTargetBox-0="[151,1436,181,1868]" captionTargetBox-1="[151,1435,181,1768]" captionTargetBox-2="[158,1430,181,1851]" captionTargetId-0="figure-19@14.[151,1436,181,1868]" captionTargetId-1="figure-25@15.[151,1435,181,1768]" captionTargetId-2="figure-19@16.[158,1430,181,1851]" captionTargetPageId-0="14" captionTargetPageId-1="15" captionTargetPageId-2="16" captionText-0="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." captionText-1="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." captionText-2="FIGURE 10. Amphitritides skeletonensis sp. nov. SEM micrographs. A. Thoracic notopodia (note: short and long chaetae). B. Shorter notochaetae of first row (note: distinct angle between shaft and serrated tip). C. Serrated tips of shorter notochaetae. D. Longer notochaetae of second row (note: angel between shaft and serrated tip absent). E. Shaft of notochaetae. F, G. Serrated tips of longer notochaetae. H. Three thoracic uncini from the region with uncini in double rows. I. Abdominal uncini. Scale bars. A 200 µm, B, D, I 20 µm, C, H 10 µm, E–G 5 µm." figureDoi-0="http://doi.org/10.5281/zenodo.11084587" figureDoi-1="http://doi.org/10.5281/zenodo.11084591" figureDoi-2="http://doi.org/10.5281/zenodo.11084593" httpUri-0="https://zenodo.org/record/11084587/files/figure.png" httpUri-1="https://zenodo.org/record/11084591/files/figure.png" httpUri-2="https://zenodo.org/record/11084593/files/figure.png" pageId="13" pageNumber="55">Figs 8–10</figureCitation>
; 
<figureCitation id="23CB27E2FFE72A24FE99885698DCFAB9" box="[287,398,1339,1365]" captionStart="FIGURE 11" captionStartId="18.[152,255,1756,1780]" captionTargetBox="[203,1385,181,1733]" captionTargetId="figure-19@18.[203,1385,181,1733]" captionTargetPageId="18" captionText="FIGURE 11. Notopodial chaetae, thoracic and abdominal uncini of the new species of Amphitritides described herein. A–E. A. namibiensis sp. nov. A. Notopodial chaetae, segment 19. B–C. Notopodial chaetae, segment 10. D. Thoracic uncini, segment 10. E. Abdominal uncini, segment 31. F–J. A. jirkovi sp. nov. F. Notopodial chaetae, segment 10. G. Notopodial chaeta, segment 21. H. Thoracic uncini, segment 20. I. Abdominal uncini, segment 50. J. Thoracic uncinus, segment 20. K–O. A. skeletonensis sp. nov. K. Longer notopodial chaetae, segment 11. L–M. Shorter notopodial chaetae, segment 11. N. Abdominal uncini, segment 34. O. Abdominal uncini, segment 40. P. A. namibiensis sp. nov. thoracic chaetae with bulbous wings, segment 10 (arrows). R. A. jirkovi sp. nov. thoracic chaetae with bulbous wings, segment 8 (arrows), S. A. skeletonensis sp. nov. thoracic chaetae with indistinct bulbous wings, segment 15 (arrows). Scale bars. A, C–G, J–N, O, R, S 20 µm, B, H, I, O, P 50 µm." figureDoi="http://doi.org/10.5281/zenodo.11084595" httpUri="https://zenodo.org/record/11084595/files/figure.png" pageId="13" pageNumber="55">11K–O, S</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFE72A24FF1188EF9D24F9BD" pageId="13" pageNumber="55" type="materials_examined">
<paragraph id="BB4F3B67FFE72A24FF1188EF9D24F9BD" blockId="13.[151,1437,1410,1941]" pageId="13" pageNumber="55">
<emphasis id="8984E775FFE72A24FF1188EF98D1FA70" bold="true" box="[151,387,1410,1436]" pageId="13" pageNumber="55">Material examined.</emphasis>
<materialsCitation id="0B98313AFFE72A24FE0A88EE9814FA2D" collectingDate="2019-08-30" country="Namibia" elevation="125" latitude="-18.0" location="Off" longLatPrecision="76" longitude="11.65" pageId="13" pageNumber="55" specimenCode="ZSRO-P2689" specimenCount="1" typeStatus="holotype">
<emphasis id="8984E775FFE72A24FE0A88EE9B52FA71" bold="true" box="[396,512,1411,1437]" pageId="13" pageNumber="55">
<typeStatus id="644B85C5FFE72A24FE0A88EE98A9FA71" box="[396,507,1411,1437]" pageId="13" pageNumber="55" type="holotype">Holotype</typeStatus>
.
</emphasis>
<location id="BE2F6DBCFFE72A24FD8F88EE9B7DFA71" LSID="urn:lsid:plazi:treatment:33598A71FFE72A3AFF11887B9856FC49:BE2F6DBCFFE72A24FD8F88EE9B7DFA71" box="[521,559,1411,1437]" country="Namibia" latitude="-18.0" longLatPrecision="76" longitude="11.65" name="Off" pageId="13" pageNumber="55">Off</location>
<collectingCountry id="C3E77BF7FFE72A24FDBF88EE9BCCFA71" box="[569,670,1411,1437]" name="Namibia" pageId="13" pageNumber="55">Namibia</collectingCountry>
: 
<geoCoordinate id="DEC45DA0FFE72A24FD2C88EE9A40FA71" box="[682,786,1411,1437]" degrees="18.000" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="55" value="-18.0">18.000°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FC9D88EF9AD1FA71" box="[795,899,1410,1437]" degrees="11.650" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="55" value="11.65">11.650°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FC5D88EF9D74FA71" box="[987,1062,1410,1437]" metricMagnitude="2" metricUnit="m" metricValue="1.25" pageId="13" pageNumber="55" unit="m" value="125.0">
<elevation id="30DDDC54FFE72A24FC5D88EF9D74FA71" box="[987,1062,1410,1437]" metricMagnitude="2" metricUnit="m" metricValue="1.25" pageId="13" pageNumber="55" unit="m" value="125.0">125 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FBB288EE9DE7FA71" box="[1076,1205,1411,1437]" pageId="13" pageNumber="55" value="2019-08-30">
<collectingDate id="DF0AE44FFFE72A24FBB288EE9DE7FA71" box="[1076,1205,1411,1437]" pageId="13" pageNumber="55" value="2019-08-30">30.08.2019</collectingDate>
</date>
, complete specimen (
<specimenCode id="EB56931CFFE72A24FF1988CA986DFA2D" box="[159,319,1447,1473]" collectionCode="ZSRO-P" pageId="13" pageNumber="55">ZSRO-P2689</specimenCode>
)
</materialsCitation>
. 
<materialsCitation id="0B98313AFFE72A24FEC988CA9B36FA2D" box="[335,612,1447,1473]" country="Namibia" location="Off" pageId="13" pageNumber="55" specimenCount="1" typeStatus="paratype">
<emphasis id="8984E775FFE72A24FEC988CA989CFA2D" bold="true" box="[335,462,1447,1473]" pageId="13" pageNumber="55">
<typeStatus id="644B85C5FFE72A24FEC988CA989BFA2D" box="[335,457,1447,1473]" pageId="13" pageNumber="55" type="paratype">Paratypes</typeStatus>
.
</emphasis>
<location id="BE2F6DBCFFE72A24FE5588CA98ABFA2D" LSID="urn:lsid:plazi:treatment:33598A71FFE72A3AFF11887B9856FC49:BE2F6DBCFFE72A24FE5588CA98ABFA2D" box="[467,505,1447,1473]" country="Namibia" name="Off" pageId="13" pageNumber="55">Off</location>
<collectingCountry id="C3E77BF7FFE72A24FE7988CA9B36FA2D" box="[511,612,1447,1473]" name="Namibia" pageId="13" pageNumber="55">Namibia</collectingCountry>
</materialsCitation>
: 
<materialsCitation id="0B98313AFFE72A24FDEB88CA9CCBFA2D" box="[621,1433,1446,1473]" collectingDate="2019-08-30" country="Namibia" elevation="125" latitude="-18.0" longLatPrecision="76" longitude="11.65" pageId="13" pageNumber="55" specimenCode="ZSRO-P2690" specimenCount="1" typeStatus="paratype">
<geoCoordinate id="DEC45DA0FFE72A24FDEB88CA9B87FA2D" box="[621,725,1447,1473]" degrees="18.000" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="55" value="-18.0">18.000°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FD5C88CB9A11FA2D" box="[730,835,1446,1473]" degrees="11.650" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="55" value="11.65">11.650°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FC1588CB9A89FA2D" box="[915,987,1446,1473]" metricMagnitude="2" metricUnit="m" metricValue="1.25" pageId="13" pageNumber="55" unit="m" value="125.0">
<elevation id="30DDDC54FFE72A24FC1588CB9A89FA2D" box="[915,987,1446,1473]" metricMagnitude="2" metricUnit="m" metricValue="1.25" pageId="13" pageNumber="55" unit="m" value="125.0">125 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FC6388CA9D34FA2D" box="[997,1126,1447,1473]" pageId="13" pageNumber="55" value="2019-08-30">
<collectingDate id="DF0AE44FFFE72A24FC6388CA9D34FA2D" box="[997,1126,1447,1473]" pageId="13" pageNumber="55" value="2019-08-30">30.08.2019</collectingDate>
</date>
, 
<specimenCount id="ADF6F0EEFFE72A24FBF688CA9DBFFA2D" box="[1136,1261,1447,1473]" count="1" pageId="13" pageNumber="55" type="generic">1 specimen</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FB7C88CA9CCBFA2D" box="[1274,1433,1447,1473]" collectionCode="ZSRO-P" pageId="13" pageNumber="55">ZSRO-P2690</specimenCode>
</materialsCitation>
; 
<materialsCitation id="0B98313AFFE72A24FF1188A69ABCFA09" box="[151,1006,1482,1509]" collectingDate="2011-09-18" country="Namibia" elevation="156" latitude="-22.499" longLatPrecision="75" longitude="13.533" pageId="13" pageNumber="55" specimenCode="ZSRO-P2691" specimenCount="1" typeStatus="paratype">
<geoCoordinate id="DEC45DA0FFE72A24FF1188A699ADFA09" box="[151,255,1483,1509]" degrees="22.499" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="55" value="-22.499">22.499°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FE8F88A79820FA09" box="[265,370,1482,1509]" degrees="13.533" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="55" value="13.533">13.533°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FE4D88A79B45FA09" box="[459,535,1482,1509]" metricMagnitude="2" metricUnit="m" metricValue="1.56" pageId="13" pageNumber="55" unit="m" value="156.0">
<elevation id="30DDDC54FFE72A24FE4D88A79B45FA09" box="[459,535,1482,1509]" metricMagnitude="2" metricUnit="m" metricValue="1.56" pageId="13" pageNumber="55" unit="m" value="156.0">156 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FDA088A69BF7FA09" box="[550,677,1483,1509]" pageId="13" pageNumber="55" value="2011-09-18">
<collectingDate id="DF0AE44FFFE72A24FDA088A69BF7FA09" box="[550,677,1483,1509]" pageId="13" pageNumber="55" value="2011-09-18">18.09.2011</collectingDate>
</date>
, 
<specimenCount id="ADF6F0EEFFE72A24FD3588A69A67FA09" box="[691,821,1483,1509]" count="1" pageId="13" pageNumber="55" type="generic">1 specimen</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FCC188A69AB7FA09" box="[839,997,1483,1509]" collectionCode="ZSRO-P" pageId="13" pageNumber="55">ZSRO-P2691</specimenCode>
)
</materialsCitation>
; 
<materialsCitation id="0B98313AFFE72A24FC7A88A79B19F9E5" collectingDate="2011-08-24" collectionCode="SMF" country="Namibia" elevation="154" latitude="-20.2225" longLatPrecision="7" longitude="12.6288" pageId="13" pageNumber="55" specimenCode="SMF 32973" specimenCount="2" typeStatus="paratype">
<geoCoordinate id="DEC45DA0FFE72A24FC7A88A79D20FA09" box="[1020,1138,1482,1509]" degrees="20.2225" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="5" value="-20.2225">20.2225°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FBFD88A69DA1FA09" box="[1147,1267,1483,1509]" degrees="12.6288" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="5" value="12.6288">12.6288°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FACA88A79CC5FA09" box="[1356,1431,1482,1509]" metricMagnitude="2" metricUnit="m" metricValue="1.54" pageId="13" pageNumber="55" unit="m" value="154.0">
<elevation id="30DDDC54FFE72A24FACA88A79CC5FA09" box="[1356,1431,1482,1509]" metricMagnitude="2" metricUnit="m" metricValue="1.54" pageId="13" pageNumber="55" unit="m" value="154.0">154 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FF1188829844F9E5" box="[151,278,1519,1545]" pageId="13" pageNumber="55" value="2011-08-24">
<collectingDate id="DF0AE44FFFE72A24FF1188829844F9E5" box="[151,278,1519,1545]" pageId="13" pageNumber="55" value="2011-08-24">24.08.2011</collectingDate>
</date>
, 
<specimenCount id="ADF6F0EEFFE72A24FEA7888298F8F9E5" box="[289,426,1519,1545]" count="2" pageId="13" pageNumber="55" type="generic">2 specimens</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FE3E88829B11F9E5" box="[440,579,1519,1545]" collectionCode="SMF" country="Germany" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34838" lsid="urn:lsid:biocol.org:col:34838" name="Forschungsinstitut und Natur-Museum Senckenberg" pageId="13" pageNumber="55">SMF 32973</specimenCode>
)
</materialsCitation>
; 
<materialsCitation id="0B98313AFFE72A24FDD388839CCAF9E5" box="[597,1432,1518,1545]" collectingDate="2011-08-24" country="Namibia" elevation="133" latitude="-20.175" longLatPrecision="76" longitude="12.71" pageId="13" pageNumber="55" specimenCode="ZSRO-P2692" specimenCount="4" typeStatus="paratype">
<geoCoordinate id="DEC45DA0FFE72A24FDD388839BEFF9E5" box="[597,701,1518,1545]" degrees="20.175" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="55" value="-20.175">20.175°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FD4588829A7EF9E5" box="[707,812,1519,1545]" degrees="12.710" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="55" value="12.71">12.710°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FCF888829A94F9E5" box="[894,966,1519,1545]" metricMagnitude="2" metricUnit="m" metricValue="1.33" pageId="13" pageNumber="55" unit="m" value="133.0">
<elevation id="30DDDC54FFE72A24FCF888829A94F9E5" box="[894,966,1519,1545]" metricMagnitude="2" metricUnit="m" metricValue="1.33" pageId="13" pageNumber="55" unit="m" value="133.0">133 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FC5788829D02F9E5" box="[977,1104,1519,1545]" pageId="13" pageNumber="55" value="2011-08-24">
<collectingDate id="DF0AE44FFFE72A24FC5788829D02F9E5" box="[977,1104,1519,1545]" pageId="13" pageNumber="55" value="2011-08-24">24.08.2011</collectingDate>
</date>
, 
<specimenCount id="ADF6F0EEFFE72A24FBDD88829DB6F9E5" box="[1115,1252,1519,1545]" count="4" pageId="13" pageNumber="55" type="generic">4 specimens</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FB7488829CC3F9E5" box="[1266,1425,1519,1545]" collectionCode="ZSRO-P" pageId="13" pageNumber="55">ZSRO-P2692</specimenCode>
)
</materialsCitation>
, 
<materialsCitation id="0B98313AFFE72A24FF118B7E98EEF9C1" box="[151,444,1555,1581]" collectingDate="2011-08-24" collectionCode="SMF" country="Namibia" elevation="133" isTailEnumeration="true" latitude="-20.175" longLatPrecision="76" longitude="12.71" pageId="13" pageNumber="55" specimenCode="SMF 32974" specimenCount="1" typeStatus="paratype">
<specimenCount id="ADF6F0EEFFE72A24FF118B7E9845F9C1" box="[151,279,1555,1581]" count="1" pageId="13" pageNumber="55" type="generic">1 specimen</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FEA18B7E98E6F9C1" box="[295,436,1555,1581]" collectionCode="SMF" country="Germany" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34838" lsid="urn:lsid:biocol.org:col:34838" name="Forschungsinstitut und Natur-Museum Senckenberg" pageId="13" pageNumber="55">SMF 32974</specimenCode>
)
</materialsCitation>
; 
<materialsCitation id="0B98313AFFE72A24FE4E8B7E9C43F9C1" box="[456,1297,1555,1581]" collectingDate="2011-06-09" country="Namibia" elevation="101" latitude="-20.079" longLatPrecision="76" longitude="12.872" pageId="13" pageNumber="55" specimenCode="ZSRO-P2693" specimenCount="1" typeStatus="paratype">
<geoCoordinate id="DEC45DA0FFE72A24FE4E8B7E9B62F9C1" box="[456,560,1555,1581]" degrees="20.079" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="55" value="-20.079">20.079°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FDBE8B7E9BF3F9C1" box="[568,673,1555,1581]" degrees="12.872" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="55" value="12.872">12.872°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FD718B7E9A13F9C1" box="[759,833,1555,1581]" metricMagnitude="2" metricUnit="m" metricValue="1.01" pageId="13" pageNumber="55" unit="m" value="101.0">
<elevation id="30DDDC54FFE72A24FD718B7E9A13F9C1" box="[759,833,1555,1581]" metricMagnitude="2" metricUnit="m" metricValue="1.01" pageId="13" pageNumber="55" unit="m" value="101.0">101 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FCC88B7E9A9CF9C1" box="[846,974,1555,1581]" pageId="13" pageNumber="55" value="2011-06-09">
<collectingDate id="DF0AE44FFFE72A24FCC88B7E9A9CF9C1" box="[846,974,1555,1581]" pageId="13" pageNumber="55" value="2011-06-09">06.09.2011</collectingDate>
</date>
, 
<specimenCount id="ADF6F0EEFFE72A24FC5C8B7E9D08F9C1" box="[986,1114,1555,1581]" count="1" pageId="13" pageNumber="55" type="generic">1 specimen</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FBEC8B7E9C5BF9C1" box="[1130,1289,1555,1581]" collectionCode="ZSRO-P" pageId="13" pageNumber="55">ZSRO-P2693</specimenCode>
)
</materialsCitation>
. 
<emphasis id="8984E775FFE72A24FA9B8B7F9851F9BC" bold="true" pageId="13" pageNumber="55">Additional material.</emphasis>
<materialsCitation id="0B98313AFFE72A24FE8C8B5B9D20F9BD" box="[266,1138,1590,1617]" collectingDate="2019-07-09" country="Namibia" elevation="187" latitude="-25.0" longLatPrecision="7" longitude="13.9168" pageId="13" pageNumber="55" specimenCode="ZSRO-P2694" specimenCount="3">
<geoCoordinate id="DEC45DA0FFE72A24FE8C8B5B98D2F9BD" box="[266,384,1590,1617]" degrees="25.0000" direction="south" orientation="latitude" pageId="13" pageNumber="55" precision="5" value="-25.0">25.0000°S</geoCoordinate>
<geoCoordinate id="DEC45DA0FFE72A24FE018B5A98ACF9BD" box="[391,510,1591,1617]" degrees="13.9168" direction="east" orientation="longitude" pageId="13" pageNumber="55" precision="5" value="13.9168">13.9168°E</geoCoordinate>
, depth 
<quantity id="7C089682FFE72A24FDD48B5A9BC9F9BD" box="[594,667,1591,1617]" metricMagnitude="2" metricUnit="m" metricValue="1.8699999999999999" pageId="13" pageNumber="55" unit="m" value="187.0">
<elevation id="30DDDC54FFE72A24FDD48B5A9BC9F9BD" box="[594,667,1591,1617]" metricMagnitude="2" metricUnit="m" metricValue="1.8699999999999999" pageId="13" pageNumber="55" unit="m" value="187.0">187 m</elevation>
</quantity>
, 
<date id="CF4E1DA7FFE72A24FD208B5A9A75F9BD" box="[678,807,1591,1617]" pageId="13" pageNumber="55" value="2019-07-09">
<collectingDate id="DF0AE44FFFE72A24FD208B5A9A75F9BD" box="[678,807,1591,1617]" pageId="13" pageNumber="55" value="2019-07-09">07.09.2019</collectingDate>
</date>
, 
<specimenCount id="ADF6F0EEFFE72A24FCB48B5A9AEEF9BD" box="[818,956,1591,1617]" count="3" pageId="13" pageNumber="55" type="generic">3 specimens</specimenCount>
(
<specimenCode id="EB56931CFFE72A24FC4D8B5A9D38F9BD" box="[971,1130,1591,1617]" collectionCode="ZSRO-P" pageId="13" pageNumber="55">ZSRO-P2694</specimenCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFE72A24FF418B379D97F8C5" pageId="13" pageNumber="55" type="diagnosis">
<paragraph id="BB4F3B67FFE72A24FF418B379D97F8C5" blockId="13.[151,1437,1410,1941]" pageId="13" pageNumber="55">
<emphasis id="8984E775FFE72A24FF418B379810F998" bold="true" box="[199,322,1626,1652]" pageId="13" pageNumber="55">Diagnosis.</emphasis>
Two pairs of stalked arborescent branchiae; first pair distinctly longer than second pair, often longer than body width. Without distinct lateral lobes on anterior segments, but midventral lobe on segment 1 present. Thorax with 28–31 segments. One pair of nephridial papillae on segment 3, inserted laterally and close to branchial stalk. Three pairs of genital papillae on segments 6–8, occurring at the anterior base of the corresponding notopodia and aligned with them. Notochaetae distally serrated. Neuropodia from segment 5, double rows of uncini on thoracic and first 6–7 abdominal segments, beginning on segment 11. Pygidium with crenulated margin.
</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFE72A38FF418A5F9B3BF987" lastPageId="17" lastPageNumber="59" pageId="13" pageNumber="55" type="description">
<paragraph id="BB4F3B67FFE72A24FF418A5F9BA1F879" blockId="13.[151,1437,1410,1941]" pageId="13" pageNumber="55">
<emphasis id="8984E775FFE72A24FF418A5F980BF8A0" bold="true" box="[199,345,1842,1868]" pageId="13" pageNumber="55">Description.</emphasis>
Large species, complete 
<typeStatus id="644B85C5FFE72A24FDF48A5E9B86F8A1" box="[626,724,1843,1869]" pageId="13" pageNumber="55" type="holotype">holotype</typeStatus>
<quantity id="7C089682FFE72A24FD5C8A5E9A7BF8A1" box="[730,809,1843,1869]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" pageId="13" pageNumber="55" unit="mm" value="60.0">60 mm</quantity>
long, 
<quantity id="7C089682FFE72A24FCE88A5E9AFCF8A1" box="[878,942,1843,1869]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" pageId="13" pageNumber="55" unit="mm" value="6.0">6 mm</quantity>
wide, for 71 segments. 
<typeStatus id="644B85C5FFE72A24FB318A5E9C76F8A1" box="[1207,1316,1843,1869]" pageId="13" pageNumber="55" type="paratype">Paratypes</typeStatus>
between 
<quantity id="7C089682FFE72A24FA088A5E9991F89D" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="13" pageNumber="55" unit="mm" value="8.0">8 mm</quantity>
and 
<quantity id="7C089682FFE72A24FF708A3B9811F89D" box="[246,323,1878,1905]" metricMagnitude="-2" metricUnit="m" metricValue="7.5" pageId="13" pageNumber="55" unit="mm" value="75.0">75 mm</quantity>
long, and 
<quantity id="7C089682FFE72A24FE328A3B9B5BF89D" box="[436,521,1878,1905]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="13" pageNumber="55" unit="mm" value="1.5">1.5 mm</quantity>
and 
<quantity id="7C089682FFE72A24FDBD8A3A9BDBF89D" box="[571,649,1879,1905]" metricMagnitude="-2" metricUnit="m" metricValue="1.2" pageId="13" pageNumber="55" unit="mm" value="12.0">12 mm</quantity>
wide. Maximum 60–75 segments, but most individuals are incomplete. Anterior body usually distinctly swollen (
<figureCitation id="23CB27E2FFE72A24FDEC8A169BB4F879" box="[618,742,1915,1941]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="13" pageNumber="55">Fig. 8A, D</figureCitation>
).
</paragraph>
<caption id="EF8F6BEFFFE42A27FF1E8A0E9D9FF804" ID-DOI="http://doi.org/10.5281/zenodo.11084587" ID-Zenodo-Dep="11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="14" pageNumber="56" startId="14.[152,255,1891,1915]" targetBox="[151,1436,181,1868]" targetPageId="14" targetType="figure">
<paragraph id="BB4F3B67FFE42A27FF1E8A0E9D9FF804" blockId="14.[151,1437,1891,2024]" pageId="14" pageNumber="56">
<emphasis id="8984E775FFE42A27FF1E8A0E9848F897" bold="true" box="[152,282,1891,1915]" pageId="14" pageNumber="56">FIGURE 8.</emphasis>
<taxonomicName id="7CF040E4FFE42A27FEA48A099B68F890" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[290,570,1892,1916]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="14" pageNumber="56" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFE42A27FEA48A099B68F890" box="[290,570,1892,1916]" italics="true" pageId="14" pageNumber="56">Amphitritides skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFE42A27FDC78A099BC6F890" bold="true" box="[577,660,1892,1916]" pageId="14" pageNumber="56">
<taxonomicNameLabel id="92B75A0EFFE42A27FDC78A099BC6F890" box="[577,660,1892,1916]" pageId="14" pageNumber="56" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield.
</paragraph>
</caption>
<caption id="EF8F6BEFFFE52A26FF1E8A6D9D10F868" ID-DOI="http://doi.org/10.5281/zenodo.11084591" ID-Zenodo-Dep="11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="15" pageNumber="57" startId="15.[152,255,1792,1816]" targetBox="[151,1435,181,1768]" targetPageId="15" targetType="figure">
<paragraph id="BB4F3B67FFE52A26FF1E8A6D9D10F868" blockId="15.[151,1437,1792,1924]" pageId="15" pageNumber="57">
<emphasis id="8984E775FFE52A26FF1E8A6D984AF8F4" bold="true" box="[152,280,1792,1816]" pageId="15" pageNumber="57">FIGURE 9.</emphasis>
<taxonomicName id="7CF040E4FFE52A26FE988A6D9B61F8F4" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[286,563,1792,1816]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="15" pageNumber="57" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFE52A26FE988A6D9B61F8F4" box="[286,563,1792,1816]" italics="true" pageId="15" pageNumber="57">Amphitritides skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFE52A26FDBF8A6D9BDBF8F4" bold="true" box="[569,649,1792,1816]" pageId="15" pageNumber="57">
<taxonomicNameLabel id="92B75A0EFFE52A26FDBF8A6D9BDBF8F4" box="[569,649,1792,1816]" pageId="15" pageNumber="57" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars. A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments.
</paragraph>
</caption>
<caption id="EF8F6BEFFFFA2A39FF1E8A3F9BC8F817" ID-DOI="http://doi.org/10.5281/zenodo.11084593" ID-Zenodo-Dep="11084593" httpUri="https://zenodo.org/record/11084593/files/figure.png" pageId="16" pageNumber="58" startId="16.[152,255,1874,1898]" targetBox="[158,1430,181,1851]" targetPageId="16" targetType="figure">
<paragraph id="BB4F3B67FFFA2A39FF1E8A3F9BC8F817" blockId="16.[151,1437,1874,2043]" pageId="16" pageNumber="58">
<emphasis id="8984E775FFFA2A39FF1E8A3F9877F887" bold="true" box="[152,293,1874,1899]" pageId="16" pageNumber="58">FIGURE 10.</emphasis>
<taxonomicName id="7CF040E4FFFA2A39FEAD8A3E9B13F887" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[299,577,1875,1899]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="16" pageNumber="58" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFA2A39FEAD8A3E9B13F887" box="[299,577,1875,1899]" italics="true" pageId="16" pageNumber="58">Amphitritides skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFA2A39FDC18A3E9BC5F887" bold="true" box="[583,663,1875,1899]" pageId="16" pageNumber="58">
<taxonomicNameLabel id="92B75A0EFFFA2A39FDC18A3E9BC5F887" box="[583,663,1875,1899]" pageId="16" pageNumber="58" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
SEM micrographs. A. Thoracic notopodia (note: short and long chaetae). B. Shorter notochaetae of first row (note: distinct angle between shaft and serrated tip). C. Serrated tips of shorter notochaetae. D. Longer notochaetae of second row (note: angel between shaft and serrated tip absent). E. Shaft of notochaetae. F, G. Serrated tips of longer notochaetae. H. Three thoracic uncini from the region with uncini in double rows. I. Abdominal uncini. Scale bars. A 200 µm, B, D, I 20 µm, C, H 10 µm, E–G 5 µm.
</paragraph>
</caption>
<paragraph id="BB4F3B67FFFB2A38FF418DFA9DDBFE88" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Body surface of dorsal and ventral sides very different from each other, especially on thorax. Ventral side with glandular structure, well stained with methylene blue; well-developed ventral shields, i.e., clearly separated from the lateral sides by furrows, from segments 5 to segment 14–15 usually; last shields may be narrower and shorter; mid-ventral groove usually begins immediately after last ventral shield (
<figureCitation id="23CB27E2FFFB2A38FC3B8C6E9D6AFEF1" box="[957,1080,259,285]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Fig. 8C, D</figureCitation>
). Dorsal side papillose; papillae arranged in more or less distinct rows, up to about segments 
<quantity id="7C089682FFFB2A38FCB18C4A9AD9FEAD" box="[823,907,295,321]" metricMagnitude="-1" metricUnit="m" metricValue="2.54" metricValueMax="3.048" metricValueMin="2.032" pageId="17" pageNumber="59" unit="in" value="10.0" valueMax="12.0" valueMin="8.0">8–12 in</quantity>
2 rows, thereafter 3 and later 4 rows of papillae per segment, segments appearing secondarily annulated as a result (
<figureCitation id="23CB27E2FFFB2A38FC0B8C279D75FE89" box="[909,1063,330,357]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8A, B, E</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FBB08C279D29FE88" box="[1078,1147,330,356]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A, B</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418C039C4DFE40" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Prostomium at base of upper lip; basal part without eyespots; distal part forming shelf-like tentacular membrane from which numerous filiform and deeply grooved, ciliated buccal tentacles originate (
<figureCitation id="23CB27E2FFFB2A38FBE58CFF9DB3FE40" box="[1123,1249,402,428]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8B, C</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FB6A8CFF9C40FE40" box="[1260,1298,402,428]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418CD89CD6FE1F" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Peristomium well developed, with conspicuous hood-like upper lip, sometimes trilobate, with corrugated anterior margin, directed anteriorly; lower lip narrow and swollen; pharyngeal organ often visible (
<figureCitation id="23CB27E2FFFB2A38FB6F8CB49C14FE1F" box="[1257,1350,473,499]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8C</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FAD48CB49C25FE1F" box="[1362,1399,473,499]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418C909B3CFDB3" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Segment 1 dorsally narrow, conspicuously developed ventrally, forming mid-ventral lobe below lower lip; anterior margin concave and corrugated; lobe as long as lower lip or shorter (Figs (8A, C, D; 9A, B). Segments 2 and 3 without any lobes (
<figureCitation id="23CB27E2FFFB2A38FE348F299B42FDB3" box="[434,528,580,607]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8A</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FD9D8F289B33FDB3" box="[539,609,581,607]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A, B</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418F049C39FD02" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Two pairs of large arborescent branchiae on segments 2 and 3; first pair distinctly longer than second pair, usually about 2–4 times as long as second pair, often even longer than body width; first pair about 
<quantity id="7C089682FFFB2A38FAA88FE19CCFFD4B" box="[1326,1437,652,679]" metricMagnitude="-3" metricUnit="m" metricValue="7.5" metricValueMax="10.0" metricValueMin="5.0" pageId="17" pageNumber="59" unit="mm" value="7.5" valueMax="10.0" valueMin="5.0">5–10 mm</quantity>
(exceptionally 
<quantity id="7C089682FFFB2A38FEB88FDD98E5FD26" box="[318,439,688,714]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" metricValueMax="1.6" metricValueMin="1.4" pageId="17" pageNumber="59" unit="mm" value="15.0" valueMax="16.0" valueMin="14.0">14–16 mm</quantity>
) long; second pair always shorter than body width, about 
<quantity id="7C089682FFFB2A38FBBA8FDD9DCBFD26" box="[1084,1177,688,714]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="17" pageNumber="59" unit="mm" value="3.0" valueMax="4.0" valueMin="2.0">2–4 mm</quantity>
long; main stems short and thick, irregularly branching dichotomously, with short branchial filaments terminally (
<figureCitation id="23CB27E2FFFB2A38FB0D8FBE9C5EFD02" box="[1163,1292,723,750]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8A–D</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FA918FB99C0FFD02" box="[1303,1373,724,750]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A, B</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418F9A9B6DFBE7" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Notopodia starting from segment 4 and extending usually for 25–27 segments, i.e. up to segment 28–30 (n= 
<specimenCount id="ADF6F0EEFFFB2A38FA078F9A9842FCD9" count="15" pageId="17" pageNumber="59" type="generic">15 specimens</specimenCount>
), rarely also for 28 (up to segment 31; n= 
<specimenCount id="ADF6F0EEFFFB2A38FD788E769A2CFCD9" box="[766,894,795,821]" count="1" pageId="17" pageNumber="59" type="generic">1 specimen</specimenCount>
) segments; first pair of notopodia smaller than following pairs; notopodia short, rectangular to conical; all notopodia laterally aligned; notopodia and neuropodia clearly separated (
<figureCitation id="23CB27E2FFFB2A38FEE08E0F9897FC90" box="[358,453,866,892]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8D</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FE558E0F9B48FC90" box="[467,538,866,892]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A–C</figureCitation>
). Notochaetae indistinctly arranged in two or more rows; chaetae of both rows with symmetrical limbation and serrated tips, base of serrated tip distinctly wider; chaetae of first row shorter, serrated tip forms a distinct angle to the shaft; chaetae of second row longer, without angle to the shaft; bulbous wings in the middle of longer chaetae poorly developed; notochaetae of anterior and posterior thoracic segments all similar (
<figureCitation id="23CB27E2FFFB2A38FF728E9C981EFBE0" box="[244,332,1009,1036]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">Figs 9E</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FEDC8E9C98E2FBE7" box="[346,432,1009,1035]" captionStart="FIGURE 10" captionStartId="16.[152,255,1874,1898]" captionTargetBox="[158,1430,181,1851]" captionTargetId="figure-19@16.[158,1430,181,1851]" captionTargetPageId="16" captionText="FIGURE 10. Amphitritides skeletonensis sp. nov. SEM micrographs. A. Thoracic notopodia (note: short and long chaetae). B. Shorter notochaetae of first row (note: distinct angle between shaft and serrated tip). C. Serrated tips of shorter notochaetae. D. Longer notochaetae of second row (note: angel between shaft and serrated tip absent). E. Shaft of notochaetae. F, G. Serrated tips of longer notochaetae. H. Three thoracic uncini from the region with uncini in double rows. I. Abdominal uncini. Scale bars. A 200 µm, B, D, I 20 µm, C, H 10 µm, E–G 5 µm." figureDoi="http://doi.org/10.5281/zenodo.11084593" httpUri="https://zenodo.org/record/11084593/files/figure.png" pageId="17" pageNumber="59">10A–G</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FE3A8E9C9B60FBE7" box="[444,562,1009,1036]" captionStart="FIGURE 11" captionStartId="18.[152,255,1756,1780]" captionTargetBox="[203,1385,181,1733]" captionTargetId="figure-19@18.[203,1385,181,1733]" captionTargetPageId="18" captionText="FIGURE 11. Notopodial chaetae, thoracic and abdominal uncini of the new species of Amphitritides described herein. A–E. A. namibiensis sp. nov. A. Notopodial chaetae, segment 19. B–C. Notopodial chaetae, segment 10. D. Thoracic uncini, segment 10. E. Abdominal uncini, segment 31. F–J. A. jirkovi sp. nov. F. Notopodial chaetae, segment 10. G. Notopodial chaeta, segment 21. H. Thoracic uncini, segment 20. I. Abdominal uncini, segment 50. J. Thoracic uncinus, segment 20. K–O. A. skeletonensis sp. nov. K. Longer notopodial chaetae, segment 11. L–M. Shorter notopodial chaetae, segment 11. N. Abdominal uncini, segment 34. O. Abdominal uncini, segment 40. P. A. namibiensis sp. nov. thoracic chaetae with bulbous wings, segment 10 (arrows). R. A. jirkovi sp. nov. thoracic chaetae with bulbous wings, segment 8 (arrows), S. A. skeletonensis sp. nov. thoracic chaetae with indistinct bulbous wings, segment 15 (arrows). Scale bars. A, C–G, J–N, O, R, S 20 µm, B, H, I, O, P 50 µm." figureDoi="http://doi.org/10.5281/zenodo.11084595" httpUri="https://zenodo.org/record/11084595/files/figure.png" pageId="17" pageNumber="59">11K–M, S</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF4189789802FA78" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
Neuropodia beginning from segment 5; thoracic and abdominal neuropodia as long lateral ridges, distinctly raised from body surface, almost reaching ventral shields on thorax, reaching ventral groove on abdomen (
<figureCitation id="23CB27E2FFFB2A38FAEC895499A8FB9B" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8A, C–E</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FE8C89309803FB9B" box="[266,337,1117,1143]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9A, B</figureCitation>
). Uncini arranged in double rows, in face-to-face arrangement, from segment 11 until abdominal segment 6 (n= 
<specimenCount id="ADF6F0EEFFFB2A38FEBC89ED9895FB76" box="[314,455,1152,1178]" count="4" pageId="17" pageNumber="59" type="generic">4 specimens</specimenCount>
) or 7 (n= 
<specimenCount id="ADF6F0EEFFFB2A38FDB289ED9B92FB76" box="[564,704,1152,1178]" count="6" pageId="17" pageNumber="59" type="generic">6 specimens</specimenCount>
) usually, sometimes up to abdominal segment 4 (n= 
<specimenCount id="ADF6F0EEFFFB2A38FA9189ED9CC7FB76" box="[1303,1429,1152,1178]" count="1" pageId="17" pageNumber="59" type="generic">1 specimen</specimenCount>
) or 5 (n= 
<specimenCount id="ADF6F0EEFFFB2A38FF7E89C9982BFB52" box="[248,377,1188,1214]" count="1" pageId="17" pageNumber="59" type="generic">1 specimen</specimenCount>
); rows completely separated from each other (
<figureCitation id="23CB27E2FFFB2A38FC0289C99A8FFB52" box="[900,989,1188,1214]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">Figs 9F</figureCitation>
, 
<figureCitation id="23CB27E2FFFB2A38FC6F89C99D49FB52" box="[1001,1051,1188,1214]" captionStart="FIGURE 11" captionStartId="18.[152,255,1756,1780]" captionTargetBox="[203,1385,181,1733]" captionTargetId="figure-19@18.[203,1385,181,1733]" captionTargetPageId="18" captionText="FIGURE 11. Notopodial chaetae, thoracic and abdominal uncini of the new species of Amphitritides described herein. A–E. A. namibiensis sp. nov. A. Notopodial chaetae, segment 19. B–C. Notopodial chaetae, segment 10. D. Thoracic uncini, segment 10. E. Abdominal uncini, segment 31. F–J. A. jirkovi sp. nov. F. Notopodial chaetae, segment 10. G. Notopodial chaeta, segment 21. H. Thoracic uncini, segment 20. I. Abdominal uncini, segment 50. J. Thoracic uncinus, segment 20. K–O. A. skeletonensis sp. nov. K. Longer notopodial chaetae, segment 11. L–M. Shorter notopodial chaetae, segment 11. N. Abdominal uncini, segment 34. O. Abdominal uncini, segment 40. P. A. namibiensis sp. nov. thoracic chaetae with bulbous wings, segment 10 (arrows). R. A. jirkovi sp. nov. thoracic chaetae with bulbous wings, segment 8 (arrows), S. A. skeletonensis sp. nov. thoracic chaetae with indistinct bulbous wings, segment 15 (arrows). Scale bars. A, C–G, J–N, O, R, S 20 µm, B, H, I, O, P 50 µm." figureDoi="http://doi.org/10.5281/zenodo.11084595" httpUri="https://zenodo.org/record/11084595/files/figure.png" pageId="17" pageNumber="59">11N</figureCitation>
). Avicular unicini; thoracic uncini 50–58 µm wide and 38–47 µm high, abdominal uncini 45–50 µm wide and 34–40 µm high; triangular heel, distally pointed prow downwardly directed, pointed dorsal button inserted closer to prow than to base of main fang, convex base; thoracic uncini with 3–4 distinct rows of apical teeth above main fang, about 2–4 teeth on first row, 2–4 on second and 4–5 teeth on third and four row; dental formula MF: 2–4: 2–4: 4–5: 4–5; abdominal uncini with 2–3 rows above main fang, 2–3 teeth on first and 3–5 on second and third row; dental formula MF: 2–3: 3–5: 3–5 (
<figureCitation id="23CB27E2FFFB2A38FAEC883A99B3FA79" captionStart="FIGURE 10" captionStartId="16.[152,255,1874,1898]" captionTargetBox="[158,1430,181,1851]" captionTargetId="figure-19@16.[158,1430,181,1851]" captionTargetPageId="16" captionText="FIGURE 10. Amphitritides skeletonensis sp. nov. SEM micrographs. A. Thoracic notopodia (note: short and long chaetae). B. Shorter notochaetae of first row (note: distinct angle between shaft and serrated tip). C. Serrated tips of shorter notochaetae. D. Longer notochaetae of second row (note: angel between shaft and serrated tip absent). E. Shaft of notochaetae. F, G. Serrated tips of longer notochaetae. H. Three thoracic uncini from the region with uncini in double rows. I. Abdominal uncini. Scale bars. A 200 µm, B, D, I 20 µm, C, H 10 µm, E–G 5 µm." figureDoi="http://doi.org/10.5281/zenodo.11084593" httpUri="https://zenodo.org/record/11084593/files/figure.png" pageId="17" pageNumber="59">Figs 10H, I</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FF6888179811FA78" box="[238,323,1402,1428]" captionStart="FIGURE 11" captionStartId="18.[152,255,1756,1780]" captionTargetBox="[203,1385,181,1733]" captionTargetId="figure-19@18.[203,1385,181,1733]" captionTargetPageId="18" captionText="FIGURE 11. Notopodial chaetae, thoracic and abdominal uncini of the new species of Amphitritides described herein. A–E. A. namibiensis sp. nov. A. Notopodial chaetae, segment 19. B–C. Notopodial chaetae, segment 10. D. Thoracic uncini, segment 10. E. Abdominal uncini, segment 31. F–J. A. jirkovi sp. nov. F. Notopodial chaetae, segment 10. G. Notopodial chaeta, segment 21. H. Thoracic uncini, segment 20. I. Abdominal uncini, segment 50. J. Thoracic uncinus, segment 20. K–O. A. skeletonensis sp. nov. K. Longer notopodial chaetae, segment 11. L–M. Shorter notopodial chaetae, segment 11. N. Abdominal uncini, segment 34. O. Abdominal uncini, segment 40. P. A. namibiensis sp. nov. thoracic chaetae with bulbous wings, segment 10 (arrows). R. A. jirkovi sp. nov. thoracic chaetae with bulbous wings, segment 8 (arrows), S. A. skeletonensis sp. nov. thoracic chaetae with indistinct bulbous wings, segment 15 (arrows). Scale bars. A, C–G, J–N, O, R, S 20 µm, B, H, I, O, P 50 µm." figureDoi="http://doi.org/10.5281/zenodo.11084595" httpUri="https://zenodo.org/record/11084595/files/figure.png" pageId="17" pageNumber="59">11N–O</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF4188F39C41F9EC" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
One pair of nephridial papillae on segment 3, inserted laterally and close to branchial stalk. Three pairs of tubular genital papillae on segments 6–8, originating at anteriorly base of the corresponding notopodia and aligned to them; all genital papillae of same size, clearly exceeding corresponding notopodia (
<figureCitation id="23CB27E2FFFB2A38FBDD88889DE6F9EC" box="[1115,1204,1509,1536]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Figs 8F</figureCitation>
; 
<figureCitation id="23CB27E2FFFB2A38FB46888B9C55F9EC" box="[1216,1287,1510,1536]" captionStart="FIGURE 9" captionStartId="15.[152,255,1792,1816]" captionTargetBox="[151,1435,181,1768]" captionTargetId="figure-25@15.[151,1435,181,1768]" captionTargetPageId="15" captionText="FIGURE 9. Amphitritides skeletonensis sp. nov. SEM micrographs. A, B. Anterior end, lateral views. C. Segments 5–9, lateral view (note: genital papillae). D. Segments 6–10, dorsolateral view (note: genital papillae and rows of papillae on dorsal side). E. Thoracic notopodia. F. Thoracic uncini in double rows. Scale bars.A–E 500 µm, F 50 µm Abbreviations: br1 branchia of first pair, br2 branchia of second pair, gp genital papillae, ll lower lip, numbers refer to segments." figureDoi="http://doi.org/10.5281/zenodo.11084591" httpUri="https://zenodo.org/record/11084591/files/figure.png" pageId="17" pageNumber="59">9C, D</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418B649BB6F9CF" blockId="17.[151,1437,151,2038]" box="[199,740,1545,1572]" pageId="17" pageNumber="59">
Pygidium terminal, margin crenulated (
<figureCitation id="23CB27E2FFFB2A38FD068B649B81F9C8" box="[640,723,1545,1572]" captionStart="FIGURE 8" captionStartId="14.[152,255,1891,1915]" captionTargetBox="[151,1436,181,1868]" captionTargetId="figure-19@14.[151,1436,181,1868]" captionTargetPageId="14" captionText="FIGURE 8. Amphitritides skeletonensis sp. nov. methyl blue staining. A. Anterior end, lateral view. B. Anterior end, dorsal view. C. Anterior end, ventral view. D. Anterior end, ventrolateral view. E. Posterior end, lateral view. F. Segments 3–6, lateral view (note: nephridial and genital papillae). Scale bars. A 1 mm, B–E 2 mm, F 500 µm. Abbreviations: br1 branchia of first pair, br2 branchia of second pair, bt buccal tentacles gp genital papillae, np nephridial papilla, vs ventral shield." figureDoi="http://doi.org/10.5281/zenodo.11084587" httpUri="https://zenodo.org/record/11084587/files/figure.png" pageId="17" pageNumber="59">Fig. 8E</figureCitation>
).
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418B409B25F9AB" blockId="17.[151,1437,151,2038]" box="[199,631,1581,1607]" pageId="17" pageNumber="59">The specimens pale after preservation.</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418B3C9B3BF987" blockId="17.[151,1437,151,2038]" box="[199,617,1617,1643]" pageId="17" pageNumber="59">No specimen with gametes observed.</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFFB2A3AFF418B189DBEFE19" lastPageId="19" lastPageNumber="61" pageId="17" pageNumber="59" type="discussion">
<paragraph id="BB4F3B67FFFB2A38FF418B189ADEF88A" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
<emphasis id="8984E775FFFB2A38FF418B189869F963" bold="true" box="[199,315,1653,1679]" pageId="17" pageNumber="59">Remarks.</emphasis>
<taxonomicName id="7CF040E4FFFB2A38FEC78B199B26F962" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[321,628,1652,1678]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FEC78B199B26F962" box="[321,628,1652,1678]" italics="true" pageId="17" pageNumber="59">Amphitritides skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FDFF8B189B80F963" bold="true" box="[633,722,1653,1679]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FDFF8B189B80F963" box="[633,722,1653,1679]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
most closely resembles 
<taxonomicName id="7CF040E4FFFB2A38FC668B189DD6F962" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[992,1156,1652,1679]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FC668B189DD6F962" box="[992,1156,1652,1679]" italics="true" pageId="17" pageNumber="59">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FB0C8B189DB0F963" bold="true" box="[1162,1250,1653,1679]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FB0C8B189DB0F963" box="[1162,1250,1653,1679]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
described above (see 
<tableCitation id="F6720EDCFFFB2A38FF4B8BF59870F95E" box="[205,290,1688,1714]" captionStart="TABLE 1" captionStartId="6.[152,244,368,392]" captionText="TABLE 1. Diagnostic characters of three newly described Amphitritides species off Namibia, SW Africa." pageId="17" pageNumber="59">Table 1</tableCitation>
). Both species have very long branchiae and 3 pairs of distinct genital papillae at the anterior base of notopodia of segments 6–8. However, they clearly differ in the number of thoracic segments (
<taxonomicName id="7CF040E4FFFB2A38FB6E8BD19CCEF93A" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1256,1436,1724,1750]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FB6E8BD19CCEF93A" box="[1256,1436,1724,1750]" italics="true" pageId="17" pageNumber="59">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FF118B8D99A0F916" bold="true" box="[151,242,1760,1786]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FF118B8D99A0F916" box="[151,242,1760,1786]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
with 28–31 and 
<taxonomicName id="7CF040E4FFFB2A38FE358B8D9B08F916" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[435,602,1760,1786]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FE358B8D9B08F916" box="[435,602,1760,1786]" italics="true" pageId="17" pageNumber="59">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FDE48B8D9BEFF916" bold="true" box="[610,701,1760,1786]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FDE48B8D9BEFF916" box="[610,701,1760,1786]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
with 24 segments), and the absence (
<taxonomicName id="7CF040E4FFFB2A38FBEC8B8D9C42F916" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1130,1296,1760,1786]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FBEC8B8D9C42F916" box="[1130,1296,1760,1786]" italics="true" pageId="17" pageNumber="59">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FA9E8B8D9C21F916" bold="true" box="[1304,1395,1760,1786]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FA9E8B8D9C21F916" box="[1304,1395,1760,1786]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
) or occurrence (
<taxonomicName id="7CF040E4FFFB2A38FEA58A699885F8F1" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[291,471,1795,1822]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FEA58A699885F8F1" box="[291,471,1795,1822]" italics="true" pageId="17" pageNumber="59">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FE598A699B68F8F2" bold="true" box="[479,570,1796,1822]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FE598A699B68F8F2" box="[479,570,1796,1822]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
) of double rows of uncini on the first abdominal segments. The uncini of 
<taxonomicName id="7CF040E4FFFB2A38FA028A699879F8AD" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FA028A699879F8AD" italics="true" pageId="17" pageNumber="59">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FEB48A4598DEF8AE" bold="true" box="[306,396,1832,1858]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FEB48A4598DEF8AE" box="[306,396,1832,1858]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
are clearly larger than those in 
<taxonomicName id="7CF040E4FFFB2A38FD698A459AC6F8AD" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[751,916,1831,1858]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FD698A459AC6F8AD" box="[751,916,1831,1858]" italics="true" pageId="17" pageNumber="59">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FC1D8A459AA7F8AE" bold="true" box="[923,1013,1832,1858]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FC1D8A459AA7F8AE" box="[923,1013,1832,1858]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
and the thorax in 
<taxonomicName id="7CF040E4FFFB2A38FB468A459C26F8AD" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1216,1396,1831,1858]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FB468A459C26F8AD" box="[1216,1396,1831,1858]" italics="true" pageId="17" pageNumber="59">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FAFD8A45999AF88A" bold="true" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FAFD8A45999AF88A" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is always clearly swollen, contrarily to 
<taxonomicName id="7CF040E4FFFB2A38FD018A219A7EF889" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[647,812,1867,1894]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FD018A219A7EF889" box="[647,812,1867,1894]" italics="true" pageId="17" pageNumber="59">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FCB48A219ADEF88A" bold="true" box="[818,908,1868,1894]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FCB48A219ADEF88A" box="[818,908,1868,1894]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</paragraph>
<paragraph id="BB4F3B67FFFB2A38FF418A029B80F81A" blockId="17.[151,1437,151,2038]" pageId="17" pageNumber="59">
<taxonomicName id="7CF040E4FFFB2A38FF418A0298ABF865" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[199,505,1903,1929]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FF418A0298ABF865" box="[199,505,1903,1929]" italics="true" pageId="17" pageNumber="59">Amphitritides skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FE788A1D9B04F866" bold="true" box="[510,598,1904,1930]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FE788A1D9B04F866" box="[510,598,1904,1930]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from 
<taxonomicName id="7CF040E4FFFB2A38FD638A1D9A19F865" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[741,843,1903,1930]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="jirkovi" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FD638A1D9A19F865" box="[741,843,1903,1930]" italics="true" pageId="17" pageNumber="59">A. jirkovi</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FCD68A1D9AFAF866" bold="true" box="[848,936,1904,1930]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FCD68A1D9AFAF866" box="[848,936,1904,1930]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
mainly in that 
<taxonomicName id="7CF040E4FFFB2A38FBCD8A1D9DE3F865" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1099,1201,1903,1930]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="jirkovi" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FBCD8A1D9DE3F865" box="[1099,1201,1903,1930]" italics="true" pageId="17" pageNumber="59">A. jirkovi</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FB318A1D9C5CF866" bold="true" box="[1207,1294,1904,1930]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FB318A1D9C5CF866" box="[1207,1294,1904,1930]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
has ten pairs of genital papillae, whereas 
<taxonomicName id="7CF040E4FFFB2A38FE548AF99BD7F841" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[466,645,1939,1966]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FE548AF99BD7F841" box="[466,645,1939,1966]" italics="true" pageId="17" pageNumber="59">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FD0D8AF99BB7F842" bold="true" box="[651,741,1940,1966]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FD0D8AF99BB7F842" box="[651,741,1940,1966]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
has three pairs. In addition, 
<taxonomicName id="7CF040E4FFFB2A38FBA58AF99DD9F841" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1059,1163,1939,1966]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="jirkovi" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FBA58AF99DD9F841" box="[1059,1163,1939,1966]" italics="true" pageId="17" pageNumber="59">A. jirkovi</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FB148AF99DB9F842" bold="true" box="[1170,1259,1940,1966]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FB148AF99DB9F842" box="[1170,1259,1940,1966]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
has neuropodia with double rows of uncini on all abdominal segments, whereas 
<taxonomicName id="7CF040E4FFFB2A38FCEB8AD59D72F83D" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[877,1056,1975,2002]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="59" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFFB2A38FCEB8AD59D72F83D" box="[877,1056,1975,2002]" italics="true" pageId="17" pageNumber="59">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFFB2A38FBA18AD59DD3F83E" bold="true" box="[1063,1153,1976,2002]" pageId="17" pageNumber="59">
<taxonomicNameLabel id="92B75A0EFFFB2A38FBA18AD59DD3F83E" box="[1063,1153,1976,2002]" pageId="17" pageNumber="59" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
has only double rows on the anterior 4–7 abdominal segments (see 
<tableCitation id="F6720EDCFFFB2A38FDE98AB69B93F81A" box="[623,705,2011,2038]" captionStart="TABLE 1" captionStartId="6.[152,244,368,392]" captionText="TABLE 1. Diagnostic characters of three newly described Amphitritides species off Namibia, SW Africa." pageId="17" pageNumber="59">Table 1</tableCitation>
).
</paragraph>
<caption id="EF8F6BEFFFF82A3BFF1E8BB19DBBF81D" ID-DOI="http://doi.org/10.5281/zenodo.11084595" ID-Zenodo-Dep="11084595" httpUri="https://zenodo.org/record/11084595/files/figure.png" pageId="18" pageNumber="60" startId="18.[152,255,1756,1780]" targetBox="[203,1385,181,1733]" targetPageId="18" targetType="figure">
<paragraph id="BB4F3B67FFF82A3BFF1E8BB19DBBF81D" blockId="18.[151,1437,1756,2033]" pageId="18" pageNumber="60">
<emphasis id="8984E775FFF82A3BFF1E8BB19871F918" bold="true" box="[152,291,1756,1780]" pageId="18" pageNumber="60">FIGURE 11.</emphasis>
Notopodial chaetae, thoracic and abdominal uncini of the new species of 
<taxonomicName id="7CF040E4FFF82A3BFB8D8BB09DC7F919" authorityName="Augener" authorityYear="1922" box="[1035,1173,1757,1781]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="genus">
<emphasis id="8984E775FFF82A3BFB8D8BB09DC7F919" box="[1035,1173,1757,1781]" italics="true" pageId="18" pageNumber="60">Amphitritides</emphasis>
</taxonomicName>
described herein. A–E. 
<taxonomicName id="7CF040E4FFF82A3BFA008BB09842F8F5" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFF82A3BFA008BB09842F8F5" italics="true" pageId="18" pageNumber="60">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF82A3BFE938A6C9837F8F5" bold="true" box="[277,357,1793,1817]" pageId="18" pageNumber="60">
<taxonomicNameLabel id="92B75A0EFFF82A3BFE938A6C9837F8F5" box="[277,357,1793,1817]" pageId="18" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
A. Notopodial chaetae, segment 19. B–C. Notopodial chaetae, segment 10. D. Thoracic uncini, segment 10. E. Abdominal uncini, segment 31. F–J. 
<taxonomicName id="7CF040E4FFF82A3BFDA58A489BD2F8D1" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[547,640,1829,1853]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="species" species="jirkovi" status="sp. nov.">
<emphasis id="8984E775FFF82A3BFDA58A489BD2F8D1" box="[547,640,1829,1853]" italics="true" pageId="18" pageNumber="60">A. jirkovi</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF82A3BFD008A489B87F8D1" bold="true" box="[646,725,1829,1853]" pageId="18" pageNumber="60">
<taxonomicNameLabel id="92B75A0EFFF82A3BFD008A489B87F8D1" box="[646,725,1829,1853]" pageId="18" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
F. Notopodial chaetae, segment 10. G. Notopodial chaeta, segment 21. H. Thoracic uncini, segment 20. I. Abdominal uncini, segment 50. J. Thoracic uncinus, segment 20. K–O. 
<taxonomicName id="7CF040E4FFF82A3BFB538A249C25F88D" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1237,1399,1865,1889]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFF82A3BFB538A249C25F88D" box="[1237,1399,1865,1889]" italics="true" pageId="18" pageNumber="60">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF82A3BFAF88A249991F869" bold="true" pageId="18" pageNumber="60">
<taxonomicNameLabel id="92B75A0EFFF82A3BFAF88A249991F869" pageId="18" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
K. Longer notopodial chaetae, segment 11. L–M. Shorter notopodial chaetae, segment 11. N. Abdominal uncini, segment 34. O. Abdominal uncini, segment 40. P. 
<taxonomicName id="7CF040E4FFF82A3BFDBE8AFC9B9FF845" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[568,717,1937,1961]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFF82A3BFDBE8AFC9B9FF845" box="[568,717,1937,1961]" italics="true" pageId="18" pageNumber="60">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF82A3BFD558AFC9A76F845" bold="true" box="[723,804,1937,1961]" pageId="18" pageNumber="60">
<taxonomicNameLabel id="92B75A0EFFF82A3BFD558AFC9A76F845" box="[723,804,1937,1961]" pageId="18" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
thoracic chaetae with bulbous wings, segment 10 (arrows). R. 
<taxonomicName id="7CF040E4FFF82A3BFF118AD899A4F821" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[151,246,1973,1997]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="species" species="jirkovi" status="sp. nov.">
<emphasis id="8984E775FFF82A3BFF118AD899A4F821" box="[151,246,1973,1997]" italics="true" pageId="18" pageNumber="60">A. jirkovi</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF82A3BFF7B8AD8981CF821" bold="true" box="[253,334,1973,1997]" pageId="18" pageNumber="60">
<taxonomicNameLabel id="92B75A0EFFF82A3BFF7B8AD8981CF821" box="[253,334,1973,1997]" pageId="18" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
thoracic chaetae with bulbous wings, segment 8 (arrows), S. 
<taxonomicName id="7CF040E4FFF82A3BFC448AD89D37F821" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[962,1125,1973,1997]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="18" pageNumber="60" phylum="Annelida" rank="species" species="skeletonensis" status="sp. nov.">
<emphasis id="8984E775FFF82A3BFC448AD89D37F821" box="[962,1125,1973,1997]" italics="true" pageId="18" pageNumber="60">A. skeletonensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF82A3BFBEA8AD89DEFF821" bold="true" box="[1132,1213,1973,1997]" pageId="18" pageNumber="60">
<taxonomicNameLabel id="92B75A0EFFF82A3BFBEA8AD89DEFF821" box="[1132,1213,1973,1997]" pageId="18" pageNumber="60" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
thoracic chaetae with indistinct bulbous wings, segment 15 (arrows). Scale bars. A, C–G, J–N, O, R, S 20 µm, B, H, I, O, P 50 µm.
</paragraph>
</caption>
<paragraph id="BB4F3B67FFF92A3AFF418DFA99AAFE65" blockId="19.[151,1437,151,753]" pageId="19" pageNumber="61">
Within the genera 
<emphasis id="8984E775FFF92A3AFE268DFA9B90FF5D" box="[416,706,151,177]" italics="true" pageId="19" pageNumber="61">
<taxonomicName id="7CF040E4FFF92A3AFE268DFA9B69FF5D" authorityName="Augener" authorityYear="1922" box="[416,571,151,177]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="genus">Amphitritides</taxonomicName>
, 
<taxonomicName id="7CF040E4FFF92A3AFDCC8DFA9B90FF5D" baseAuthorityName="Jirkov" baseAuthorityYear="2020" box="[586,706,151,177]" class="Polychaeta" family="Terebellidae" genus="Amphitrite" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="genus">Amphitrite</taxonomicName>
</emphasis>
(including 
<taxonomicName id="7CF040E4FFF92A3AFCCC8DFA9ABEFF5D" authorityName="Hessle" authorityYear="1917" box="[842,1004,151,177]" class="Polychaeta" family="Terebellidae" genus="Neoamphitrite" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="genus">
<emphasis id="8984E775FFF92A3AFCCC8DFA9ABEFF5D" box="[842,1004,151,177]" italics="true" pageId="19" pageNumber="61">Neoamphitrite</emphasis>
</taxonomicName>
) and 
<taxonomicName id="7CF040E4FFF92A3AFBB58DFA9D80FF5D" authorityName="Holthe" authorityYear="1976" box="[1075,1234,151,177]" class="Polychaeta" family="Terebellidae" genus="Paramphitrite" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="genus">
<emphasis id="8984E775FFF92A3AFBB58DFA9D80FF5D" box="[1075,1234,151,177]" italics="true" pageId="19" pageNumber="61">Paramphitrite</emphasis>
</taxonomicName>
no species has 2 pairs of branchiae, 3 pairs of genital papillae and 28–31 thoracic segments. 
<taxonomicName id="7CF040E4FFF92A3AFB838DD69C1BFF39" baseAuthorityName="Ehlers" baseAuthorityYear="1887" box="[1029,1353,187,213]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="species" species="bruneocomata">
<emphasis id="8984E775FFF92A3AFB838DD69C1BFF39" box="[1029,1353,187,213]" italics="true" pageId="19" pageNumber="61">Amphitritides bruneocomata</emphasis>
</taxonomicName>
and 
<taxonomicName id="7CF040E4FFF92A3AFA028DD69848FF15" authorityName="Arvanitidis &amp; Koukouras" authorityYear="1995" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="species" species="kuehlmanni">
<emphasis id="8984E775FFF92A3AFA028DD69848FF15" italics="true" pageId="19" pageNumber="61">A. kuehlmanni</emphasis>
</taxonomicName>
, with a similar number of thoracic segments, also have 2 pairs of branchiae, but significantly more segments with genital papillae. 
<taxonomicName id="7CF040E4FFF92A3AFD8D8C6E9A03FEF1" baseAuthorityName="Ehlers" baseAuthorityYear="1887" box="[523,849,259,285]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="species" species="bruneocomata">
<emphasis id="8984E775FFF92A3AFD8D8C6E9A03FEF1" box="[523,849,259,285]" italics="true" pageId="19" pageNumber="61">Amphitritides bruneocomata</emphasis>
</taxonomicName>
has 15 and 
<taxonomicName id="7CF040E4FFF92A3AFC6F8C6E9DDDFEF1" authorityName="Arvanitidis &amp; Koukouras" authorityYear="1995" box="[1001,1167,259,285]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="species" species="kuehlmanni">
<emphasis id="8984E775FFF92A3AFC6F8C6E9DDDFEF1" box="[1001,1167,259,285]" italics="true" pageId="19" pageNumber="61">A. kuehlmanni</emphasis>
</taxonomicName>
11–13 pairs of genital papillae. In addition, both species have double rows of uncini on almost all abdominal segments. All other species of these 3 genera with a similar number of segments always have 3 pairs of branchiae and significantly more genital papillae.
</paragraph>
<paragraph id="BB4F3B67FFF92A3AFF418CFE9DBEFE19" blockId="19.[151,1437,151,753]" pageId="19" pageNumber="61">
There are only minor differences between large (width 
<quantity id="7C089682FFF92A3AFCAB8CFE9ACAFE41" box="[813,920,403,429]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" metricValueMax="1.2" metricValueMin="0.8" pageId="19" pageNumber="61" unit="mm" value="10.0" valueMax="12.0" valueMin="8.0">8–12 mm</quantity>
) and small (width 
<quantity id="7C089682FFF92A3AFBEE8CFE9D97FE41" box="[1128,1221,403,429]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="4.0" metricValueMin="2.0" pageId="19" pageNumber="61" unit="mm" value="3.0" valueMax="4.0" valueMin="2.0">2–4 mm</quantity>
) individuals. Thus, the uncini in small specimens are smaller in general (24–28 µm high, 31–60 µm wide). As in 
<taxonomicName id="7CF040E4FFF92A3AFB1D8CDA9C6CFE3D" authority="Bick &amp; Zettler, 2024" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[1179,1342,439,465]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="species" species="namibiensis" status="sp. nov.">
<emphasis id="8984E775FFF92A3AFB1D8CDA9C6CFE3D" box="[1179,1342,439,465]" italics="true" pageId="19" pageNumber="61">A. namibiensis</emphasis>
</taxonomicName>
<emphasis id="8984E775FFF92A3AFAC28CDA9CCEFE3D" bold="true" box="[1348,1436,439,465]" pageId="19" pageNumber="61">
<taxonomicNameLabel id="92B75A0EFFF92A3AFAC28CDA9CCEFE3D" box="[1348,1436,439,465]" pageId="19" pageNumber="61" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
genital papillae are always visible, even in the smallest specimens which are presumably juveniles.
</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFF92A3AFF418C9298D1FDD1" pageId="19" pageNumber="61" type="etymology">
<paragraph id="BB4F3B67FFF92A3AFF418C9298D1FDD1" blockId="19.[151,1437,151,753]" pageId="19" pageNumber="61">
<emphasis id="8984E775FFF92A3AFF418C92981CFDF5" bold="true" box="[199,334,511,537]" pageId="19" pageNumber="61">Etymology.</emphasis>
The specific epithet 
<taxonomicName id="7CF040E4FFF92A3AFDB68C929B96FDF5" authorityName="Bick &amp; Zettler" authorityYear="2024" box="[560,708,511,537]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="species" species="skeletonensis">
<emphasis id="8984E775FFF92A3AFDB68C929B96FDF5" box="[560,708,511,537]" italics="true" pageId="19" pageNumber="61">skeletonensis</emphasis>
</taxonomicName>
is derived from the northern part of coast of 
<collectingCountry id="C3E77BF7FFF92A3AFB218C929C58FDF5" box="[1191,1290,511,537]" name="Namibia" pageId="19" pageNumber="61">Namibia</collectingCountry>
, the Skeleton Coast (
<typeStatus id="644B85C5FFF92A3AFF608F4E984AFDD1" box="[230,280,547,573]" pageId="19" pageNumber="61">type</typeStatus>
locality).
</paragraph>
</subSubSection>
<subSubSection id="F3EA68ECFFF92A3AFF418F2B9856FC49" pageId="19" pageNumber="61" type="distribution">
<paragraph id="BB4F3B67FFF92A3AFF418F2B9D7BFD69" blockId="19.[151,1437,151,753]" pageId="19" pageNumber="61">
<emphasis id="8984E775FFF92A3AFF418F2B9833FD8C" bold="true" box="[199,353,582,608]" pageId="19" pageNumber="61">Distribution.</emphasis>
Although this species is not common, it had the widest distribution of all three species, described from 
<collectingCountry id="C3E77BF7FFF92A3AFF538F06986AFD69" box="[213,312,619,645]" name="Namibia" pageId="19" pageNumber="61">Namibia</collectingCountry>
, occurring between 18°– 
<geoCoordinate id="DEC45DA0FFF92A3AFDD68F079BDAFD69" box="[592,648,618,645]" degrees="25" direction="south" orientation="latitude" pageId="19" pageNumber="61" precision="55555" value="-25.0">25°S</geoCoordinate>
, in water depths between 
<quantity id="7C089682FFF92A3AFC2C8F069D77FD69" box="[938,1061,619,645]" metricMagnitude="2" metricUnit="m" metricValue="1.44" metricValueMax="1.8699999999999999" metricValueMin="1.01" pageId="19" pageNumber="61" unit="m" value="144.0" valueMax="187.0" valueMin="101.0">
101– 
<specimenCount id="ADF6F0EEFFF92A3AFC658F069D77FD69" box="[995,1061,619,645]" count="187" pageId="19" pageNumber="61" type="generic">187m</specimenCount>
</quantity>
.
</paragraph>
<paragraph id="BB4F3B67FFF92A3AFF418FE39DEAFD1D" blockId="19.[151,1437,151,753]" pageId="19" pageNumber="61">
<emphasis id="8984E775FFF92A3AFF418FE39878FD44" bold="true" box="[199,298,654,680]" pageId="19" pageNumber="61">Habitat.</emphasis>
Bottom water salinity between 34.9–35.5 psu, oxygen content between 4–112 µmol/l. Bottom water temperature was between 11–13 °C. The sediments were silty mud with grain sizes ranging from 20–150 µm. The organic content varied between 4–26 %. No information is available on the shape of the tubes.
</paragraph>
<paragraph id="BB4F3B67FFF92A3AFF118E729856FC49" blockId="19.[151,1436,799,933]" pageId="19" pageNumber="61">
Two more specimens of 
<taxonomicName id="7CF040E4FFF92A3AFE378E729B1BFCD5" authorityName="Augener" authorityYear="1922" box="[433,585,799,825]" class="Polychaeta" family="Terebellidae" genus="Amphitritides" kingdom="Animalia" order="Terebellida" pageId="19" pageNumber="61" phylum="Annelida" rank="genus">
<emphasis id="8984E775FFF92A3AFE378E729B1BFCD5" box="[433,585,799,825]" italics="true" pageId="19" pageNumber="61">Amphitritides</emphasis>
</taxonomicName>
were found, which clearly differ in important diagnostic features from the species described above and those already known. These two individuals also differ from each other. However, their poor conservation status prevents us from formally describing these species until better preserved material becomes available.
</paragraph>
</subSubSection>
</treatment>
</document>