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<document id="7DEAE56CD7A21A67FAD6EA74B7276DB2" ID-DOI="10.5281/zenodo.202357" ID-GBIF-Dataset="c103e485-6c84-4fe9-a219-c1b1091b3b31" ID-ISSN="1175-5326" ID-Zenodo-Dep="202357" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460330004588" checkinUser="plazi" docAuthor="Parapar, Julio, Moreira, Juan &amp; Helgason, Gudmundur V." docDate="2011" docId="8F4F706BFFC9EC4FFF410CB49C55F9DE" docLanguage="en" docName="zt02983p020.pdf" docOrigin="Zootaxa 2983" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Terebellides atlantis Williams 1984" docType="treatment" docVersion="9" lastPageNumber="6" masterDocId="73760813FFC8EC4AFFD609739E69FFD6" masterDocTitle="Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species" masterLastPageNumber="20" masterPageNumber="1" pageNumber="2" updateTime="1698258475185" updateUser="plazi">
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<mods:title id="C805CA399FFBC993727AFC0B996B1FE1">Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species</mods:title>
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<mods:namePart id="53A459CE03C6196541213AFADABCA400">Moreira, Juan</mods:namePart>
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<paragraph id="0759C17DFFC9EC4BFF410CB49C21FA37" blockId="1.[151,584,1479,1538]" box="[151,584,1479,1505]" pageId="1" pageNumber="2">
<heading id="5C117611FFC9EC4BFF410CB49C21FA37" bold="true" box="[151,584,1479,1505]" fontSize="11" level="1" pageId="1" pageNumber="2" reason="1">
<taxonomicName id="C0E6BAFEFFC9EC4BFF410CB49C21FA37" ID-CoL="7BQ9R" authority="Williams, 1984" authorityName="Williams" authorityYear="1984" box="[151,584,1479,1505]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFC9EC4BFF410CB49C21FA37" bold="true" box="[151,584,1479,1505]" pageId="1" pageNumber="2">
<emphasis id="35921D6FFFC9EC4BFF410CB49FE1FA37" bold="true" box="[151,392,1479,1505]" italics="true" pageId="1" pageNumber="2">Terebellides atlantis</emphasis>
<bibRefCitation id="6377BC8CFFC9EC4BFE590CB49C21FA37" author="Williams" box="[399,584,1479,1505]" pageId="1" pageNumber="2" refString="Williams, S. J. (1984) The status of Terebellides stroemi (Polychaeta; Trichobranchidae) as a cosmopolitan species, based in a worldwide morphological survey, including description of new species. In: Hutchings, P. A. (Ed). Proceedings of the First International Polychaete Conference, Sydney, Australia, 1984. The Linnean Society of New South Wales, 118 - 142." type="book chapter" year="1984">Williams, 1984</bibRefCitation>
</emphasis>
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</paragraph>
<paragraph id="0759C17DFFC9EC4BFF410C999F3AF9D4" blockId="1.[151,584,1479,1538]" box="[151,339,1514,1538]" pageId="1" pageNumber="2">
<figureCitation id="9FDDDDF8FFC9EC4BFF410C999F76F9D4" box="[151,287,1514,1538]" captionStart-0="FIGURE 2" captionStart-1="FIGURE 3" captionStartId-0="3.[151,250,1899,1922]" captionStartId-1="4.[151,250,1656,1679]" captionTargetBox-0="[151,1436,409,1857]" captionTargetBox-1="[151,1436,179,1629]" captionTargetId-0="figure@3.[151,1436,409,1859]" captionTargetId-1="figure@4.[151,1436,179,1630]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionText-0="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." captionText-1="FIGURE 3. Terebellides atlantis (IMNH 24927 24928) (a) thoracic chaetigers 6 11, latero-ventral view, (b c) thoracic uncini, (d) abdominal uncinigers, (e) anterior abdominal unciniger, detail, (f) abdominal uncini. Scales: (a) 600 Μm, (b) 10 Μm, (c) 7 Μm, (d) 300 Μm, (e) 60 Μm, (f) 10 Μm." httpUri-0="https://zenodo.org/record/202359/files/figure.png" httpUri-1="https://zenodo.org/record/202360/files/figure.png" pageId="1" pageNumber="2">Figures 23</figureCitation>
,
<figureCitation id="9FDDDDF8FFC9EC4BFEFD0C999F2FF9D4" box="[299,326,1514,1538]" captionStart="FIGURE 13" captionStartId="15.[151,250,1917,1940]" captionTargetBox="[165,1426,197,1892]" captionTargetId="figure@15.[165,1450,197,1894]" captionTargetPageId="15" captionText="FIGURE 13. Methyl green staining of all Terebellides species found in BIOICE samples, anterior region in ventral view. (a) T. atlantis, (b) T. bigeniculatus sp. nov., (c) T. gracilis, (d) T. stroemii sensu Holthe (1986 a)." httpUri="https://zenodo.org/record/202370/files/figure.png" pageId="1" pageNumber="2">13</figureCitation>
a
</paragraph>
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<taxonomicName id="C0E6BAFEFFC9EC4BFF410F419C5FF99E" ID-CoL="7BQ9R" authority="Williams 1984: 121" authorityName="Williams" authorityPageNumber="121" authorityYear="1984" box="[151,566,1586,1608]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFC9EC4BFF410F419F0DF99E" box="[151,356,1586,1608]" italics="true" pageId="1" pageNumber="2">Terebellides atlantis</emphasis>
<treatmentCitation id="8647E76CFFC9EC4BFEBA0F419C5FF99E" author="Williams" box="[364,566,1586,1608]" page="121" pageId="1" pageNumber="2" year="1984">
<bibRefCitation id="6377BC8CFFC9EC4BFEBA0F419C6CF99E" author="Williams" box="[364,517,1586,1608]" pageId="1" pageNumber="2" refString="Williams, S. J. (1984) The status of Terebellides stroemi (Polychaeta; Trichobranchidae) as a cosmopolitan species, based in a worldwide morphological survey, including description of new species. In: Hutchings, P. A. (Ed). Proceedings of the First International Polychaete Conference, Sydney, Australia, 1984. The Linnean Society of New South Wales, 118 - 142." type="book chapter" year="1984">Williams 1984</bibRefCitation>
: 121
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123.
<treatmentCitation id="8647E76CFFC9EC4BFDA00F419D50F99E" author="Holthe" box="[630,825,1586,1608]" page="115" pageId="1" pageNumber="2" year="1986">
<bibRefCitation id="6377BC8CFFC9EC4BFDA00F419D6FF99E" author="Holthe" box="[630,774,1586,1608]" pageId="1" pageNumber="2" refString="Holthe, T. (1986 b) Evolution, systematics, and distribution of the Polychaeta Terebellomorpha, with a catalogue of the taxa and a bibliography. Gunneria, 55, 1 - 236." type="journal article" year="1986" yearSuffix="b">Holthe 1986b</bibRefCitation>
: 115
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.
<treatmentCitation id="8647E76CFFC9EC4BFC920F419A0EF99E" author="Solis-Weiss" box="[836,1127,1586,1608]" page="156" pageId="1" pageNumber="2" year="1991">
<bibRefCitation id="6377BC8CFFC9EC4BFC920F419A5AF99E" author="Solis-Weiss" box="[836,1075,1586,1608]" pageId="1" pageNumber="2" refString="Solis-Weiss, V., Fauchald, K. &amp; Blankesteyn, A. (1991) Trichobranchidae (Polychaeta) from shallow warm water areas in the Western Atlantic Ocean. Proceedings of the Biological Society of Washington, 104, 147 - 158." type="journal article" year="1991">
Solís-Weiss
<emphasis id="35921D6FFFC9EC4BFC140F409D99F99E" box="[962,1008,1586,1608]" italics="true" pageId="1" pageNumber="2">et al</emphasis>
. 1991
</bibRefCitation>
: 156
</treatmentCitation>
.
<treatmentCitation id="8647E76CFFC9EC4BFBA40F409BF0F99E" author="Bremec" box="[1138,1433,1586,1608]" page="177" pageId="1" pageNumber="2" year="1999">
<bibRefCitation id="6377BC8CFFC9EC4BFBA40F409B0DF99E" author="Bremec" box="[1138,1380,1586,1608]" pageId="1" pageNumber="2" refString="Bremec, C. S. &amp; Elias, R. (1999) Species of Terebellides from South Atlantic Waters off Argentina and Brazil (Polychaeta: Trichobranchidae). Ophelia, 5, 177 - 186." type="journal article" year="1999">Bremec and Elías 1999</bibRefCitation>
: 177
</treatmentCitation>
.
<treatmentCitation id="8647E76CFFC9EC4BFF110F229C6AF9B1" author="Hutchings" box="[199,515,1617,1639]" page="244" pageId="1" pageNumber="2" year="2000">
<bibRefCitation id="6377BC8CFFC9EC4BFF110F229FB8F9B1" author="Hutchings" box="[199,465,1617,1639]" pageId="1" pageNumber="2" refString="Hutchings, P. &amp; Peart, R. (2000) A revision of the Australian Trichobranchidae (Polychaeta). Invertebrate Taxonomy, 14, 225 - 272." type="journal article" year="2000">Hutchings and Peart 2000</bibRefCitation>
: 244
</treatmentCitation>
, Table 3a, b.
<treatmentCitation id="8647E76CFFC9EC4BFD5C0F229DA1F9B1" author="Garraffoni" box="[650,968,1617,1639]" page="356" pageId="1" pageNumber="2" year="2003">
<bibRefCitation id="6377BC8CFFC9EC4BFD5C0F229DFCF9B1" author="Garraffoni" box="[650,917,1617,1639]" pageId="1" pageNumber="2" refString="Garraffoni, A. R. S. &amp; Lana, P. C. (2003) Species of Terebellides (Polychaeta, Terebellidae, Trichobranchinae) from the Brazilian coast. Iheringia, 93 (4), 355 - 363." type="journal article" year="2003">Garraffoni and Lana 2003</bibRefCitation>
: 356
</treatmentCitation>
.
<treatmentCitation id="8647E76CFFC9EC4BFC070F229B66F9B1" author="Garraffoni" box="[977,1295,1617,1639]" page="973" pageId="1" pageNumber="2" year="2004">
<bibRefCitation id="6377BC8CFFC9EC4BFC070F229AB5F9B1" author="Garraffoni" box="[977,1244,1617,1639]" pageId="1" pageNumber="2" refString="Garraffoni, A. R. S. &amp; Lana, P. C. (2004) Cladistic analysis of Trichobranchinae (Polychaeta; Terebellidae). Journal of the Marine Biological Association of the United Kingdom, 84, 973 - 982." type="journal article" year="2004">Garraffoni and Lana 2004</bibRefCitation>
: 973
</treatmentCitation>
.
<treatmentCitation id="8647E76CFFC9EC4BFACF0F229F5FF953" author="Garraffoni" page="8" pageId="1" pageNumber="2" year="2005">
<bibRefCitation id="6377BC8CFFC9EC4BFACF0F229F74F950" author="Garraffoni" pageId="1" pageNumber="2" refString="Garraffoni, A. R. S., Lana, P. C. &amp; Hutchings, P. (2005) A catalogue of the Trichobranchinae (Polychaeta: Terebellidae) of the world. Zootaxa, 1065, 1 - 27." type="journal article" year="2005">
Garraffoni
<emphasis id="35921D6FFFC9EC4BFA5C0F219EB2F950" italics="true" pageId="1" pageNumber="2">et al</emphasis>
. 2005
</bibRefCitation>
: 8
</treatmentCitation>
.
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</paragraph>
<paragraph id="0759C17DFFC9EC4BFF410FFC9D41F972" blockId="1.[151,1436,1586,1701]" box="[151,808,1678,1701]" pageId="1" pageNumber="2">
<treatmentCitationGroup id="27F6E653FFC9EC4BFF410FFC9D41F972" box="[151,808,1678,1701]" pageId="1" pageNumber="2">
<taxonomicName id="C0E6BAFEFFC9EC4BFF410FFC9C5EF972" ID-CoL="7BPW2" authority="Hartman 1965: 227" authorityName="Hartman" authorityPageNumber="227" authorityYear="1965" box="[151,567,1678,1701]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="1" pageNumber="2" phylum="Annelida" rank="species" species="stroemii">
<emphasis id="35921D6FFFC9EC4BFF410FFC9F00F973" box="[151,361,1679,1701]" italics="true" pageId="1" pageNumber="2">Terebellides stroemii</emphasis>
<treatmentCitation id="8647E76CFFC9EC4BFEB90FFC9C5EF972" author="Hartman" box="[367,567,1678,1700]" page="227" pageId="1" pageNumber="2" year="1965">
<bibRefCitation id="6377BC8CFFC9EC4BFEB90FFC9C6CF972" author="Hartman" box="[367,517,1678,1700]" pageId="1" pageNumber="2" refString="Hartman, O. (1965) Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic areas. Allan Hancock Foundations Publications, Occasional Paper, 28, 1 - 378." type="journal article" year="1965">Hartman 1965</bibRefCitation>
: 227
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</taxonomicName>
, in part;
<emphasis id="35921D6FFFC9EC4BFD460FE39CD9F973" box="[656,688,1680,1701]" italics="true" pageId="1" pageNumber="2">not</emphasis>
Sars, 1835.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="4FFC92F6FFC9EC4BFF410FA29A6CF8AF" pageId="1" pageNumber="2" type="materials_examined">
<paragraph id="0759C17DFFC9EC4BFF410FA29A05F8E7" blockId="1.[151,1436,1745,2022]" pageId="1" pageNumber="2">
<emphasis id="35921D6FFFC9EC4BFF410FA29FE9F93C" bold="true" box="[151,384,1745,1770]" pageId="1" pageNumber="2">Material examined.</emphasis>
A total of 1684 specimens (54.15% of total) were obtained in 150 BIOICE samples. BIOICE sample 2317 (one specimen in one SEM stub
<collectionCode id="61F759B8FFC9EC4BFD790F859C93F8DB" box="[687,762,1782,1805]" pageId="1" pageNumber="2">IMNH</collectionCode>
24927;
<geoCoordinate id="62D2A7BAFFC9EC4BFC8D0F869DB6F8DB" box="[859,991,1781,1805]" direction="north" orientation="latitude" pageId="1" pageNumber="2" precision="15" value="64.11667">64º07'00''N</geoCoordinate>
;
<geoCoordinate id="62D2A7BAFFC9EC4BFC3B0F869A1AF8DB" box="[1005,1139,1781,1805]" direction="west" orientation="longitude" pageId="1" pageNumber="2" precision="15" value="-9.05">09º03'00''W</geoCoordinate>
,
<quantity id="C01E6C98FFC9EC4BFB570F869AA7F8DB" box="[1153,1230,1781,1805]" metricMagnitude="2" metricUnit="m" metricValue="9.959999999999999" pageId="1" pageNumber="2" unit="m" value="996.0">996 m</quantity>
), BIOICE sample 2741 (two specimens in one SEM stub
<collectionCode id="61F759B8FFC9EC4BFD980E699CF0F8E7" box="[590,665,1818,1841]" pageId="1" pageNumber="2">IMNH</collectionCode>
24928;
<geoCoordinate id="62D2A7BAFFC9EC4BFD230E6A9D11F8E7" box="[757,888,1817,1841]" direction="north" orientation="latitude" pageId="1" pageNumber="2" precision="15" value="67.65833">67º38'90''N</geoCoordinate>
;
<geoCoordinate id="62D2A7BAFFC9EC4BFC550E6A9A63F8E7" box="[899,1034,1817,1841]" direction="west" orientation="longitude" pageId="1" pageNumber="2" precision="15" value="-20.241112">20º14'28''W</geoCoordinate>
,
<quantity id="C01E6C98FFC9EC4BFBC30E6A9A09F8E7" box="[1045,1120,1817,1841]" metricMagnitude="2" metricUnit="m" metricValue="5.14" pageId="1" pageNumber="2" unit="m" value="514.0">514 m</quantity>
).
</paragraph>
<paragraph id="0759C17DFFC9EC4BFF110E4E9A6CF8AF" blockId="1.[151,1436,1745,2022]" pageId="1" pageNumber="2">
<emphasis id="35921D6FFFC9EC4BFF110E4E9F30F880" bold="true" box="[199,345,1853,1878]" pageId="1" pageNumber="2">Occurrence.</emphasis>
The species is present in a wide range of depths and preferably in warmer waters at both sides of the GIF Ridge. Depth range:
<quantity id="C01E6C98FFC9EC4BFE0B0E129C06F8AF" box="[477,623,1889,1913]" metricMagnitude="3" metricUnit="m" metricValue="1.5865" metricValueMax="3.0" metricValueMin="0.173" pageId="1" pageNumber="2" unit="m" value="1586.5" valueMax="3000.0" valueMin="173.0">1733000 m</quantity>
; temperature range: -0.9ºC to 7.5ºC.
</paragraph>
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<paragraph id="0759C17DFFC9EC49FF110EF69EAAFEB2" blockId="1.[151,1436,1745,2022]" lastBlockId="3.[151,1436,151,356]" lastPageId="3" lastPageNumber="4" pageId="1" pageNumber="2">
<emphasis id="35921D6FFFC9EC4BFF110EF69F30F848" bold="true" box="[199,345,1925,1950]" pageId="1" pageNumber="2">Description.</emphasis>
Complete specimens range from
<quantity id="C01E6C98FFC9EC4BFD070EF69D3BF84B" box="[721,850,1925,1949]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" metricValueMax="1.8" metricValueMin="0.8" pageId="1" pageNumber="2" unit="mm" value="13.0" valueMax="18.0" valueMin="8.0">8 to 18 mm</quantity>
in length and 0.5 to 1.0 mm in width; body tapering posteriorly with segments increasingly shorter towards pygidium. Prostomium compact; tentacular membrane surrounding the mouth and usually devoid of buccal tentacles (
<figureCitation id="9FDDDDF8FFC9EC4BFCE30EBE9D10F833" box="[821,889,1997,2021]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="1" pageNumber="2">Fig. 2</figureCitation>
a). First segment forming an expanded structure below tentacular membrane. Lateral lappets on segments 37 (chaetigers 15) (
<figureCitation id="9FDDDDF8FFCBEC49FBD909E49A3AFF79" box="[1039,1107,151,175]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
a). Branchiae arising as a single structure from segment 3, consisting of a single mid-dorsal stalked structure (
<figureCitation id="9FDDDDF8FFCBEC49FBFB09CF9A19FF02" box="[1069,1136,188,212]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
a) made up of two pairs of lobes not fused and provided with pointed projection of posterior region; posterior pair of lobes slightly shorter and thinner. Sometimes only anterior pair of lobes present; in small specimens usually only stalk persisting. No anterior projection (fifth lobe) present. Both sides of branchial lamellae provided with several concentric rows of cilia (
<figureCitation id="9FDDDDF8FFCBEC49FAB808549ECEFEB2" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
b).
</paragraph>
<caption id="539991F5FFCAEC48FF410EC49C36F826" httpUri="https://zenodo.org/record/202358/files/figure.png" pageId="2" pageNumber="3" targetBox="[311,1287,183,1938]" targetPageId="2">
<paragraph id="0759C17DFFCAEC48FF410EC49C36F826" blockId="2.[151,1436,1975,2033]" pageId="2" pageNumber="3">
<emphasis id="35921D6FFFCAEC48FF410EC49F7DF81B" bold="true" box="[151,276,1975,1998]" pageId="2" pageNumber="3">FIGURE 1.</emphasis>
Maps of the study area and collecting sites of samples including specimens of
<taxonomicName id="C0E6BAFEFFCAEC48FB950EC49AD4F81B" box="[1091,1213,1975,1997]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="3" phylum="Annelida" rank="genus">
<emphasis id="35921D6FFFCAEC48FB950EC49AD4F81B" box="[1091,1213,1975,1997]" italics="true" pageId="2" pageNumber="3">Terebellides</emphasis>
</taxonomicName>
. (a) all samples combined, (b)
<taxonomicName id="C0E6BAFEFFCAEC48FF290EA89C61F827" box="[255,520,2011,2033]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="2" pageNumber="3" phylum="Annelida" rank="species" species="bigeniculatus" status="sp. nov.">
<emphasis id="35921D6FFFCAEC48FF290EA89C61F827" box="[255,520,2011,2033]" italics="true" pageId="2" pageNumber="3">Terebellides bigeniculatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="2EA1A014FFCAEC48FDD80EA89C36F826" box="[526,607,2011,2032]" pageId="2" pageNumber="3" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</caption>
<caption id="539991F5FFCBEC49FF410E189CB3F869" httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="3" pageNumber="4" targetBox="[151,1436,409,1857]" targetPageId="3">
<paragraph id="0759C17DFFCBEC49FF410E189CB3F869" blockId="3.[151,1436,1899,1986]" pageId="3" pageNumber="4">
<emphasis id="35921D6FFFCBEC49FF410E189F7DF857" bold="true" box="[151,276,1899,1922]" pageId="3" pageNumber="4">FIGURE 2.</emphasis>
<taxonomicName id="C0E6BAFEFFCBEC49FECB0E1F9F82F854" box="[285,491,1900,1922]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCBEC49FECB0E1F9F82F854" box="[285,491,1900,1922]" italics="true" pageId="3" pageNumber="4">Terebellides atlantis</emphasis>
</taxonomicName>
(IMNH 2492724928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 57, (d) geniculate chaetae from chaetiger 6, (ef) detail of teeth of geniculate chaetae
<emphasis id="35921D6FFFCBEC49FB740EFF9A92F877" box="[1186,1275,1932,1953]" italics="true" pageId="3" pageNumber="4">capitium</emphasis>
. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m.
</paragraph>
</caption>
<caption id="539991F5FFCCEC4EFF410F0B9C76F918" httpUri="https://zenodo.org/record/202360/files/figure.png" pageId="4" pageNumber="5" targetBox="[151,1436,179,1629]" targetPageId="4">
<paragraph id="0759C17DFFCCEC4EFF410F0B9C76F918" blockId="4.[151,1436,1656,1742]" pageId="4" pageNumber="5">
<emphasis id="35921D6FFFCCEC4EFF410F0B9F7BF958" bold="true" box="[151,274,1656,1679]" pageId="4" pageNumber="5">FIGURE 3.</emphasis>
<taxonomicName id="C0E6BAFEFFCCEC4EFECE0F0A9F8DF959" box="[280,484,1657,1679]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="4" pageNumber="5" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCCEC4EFECE0F0A9F8DF959" box="[280,484,1657,1679]" italics="true" pageId="4" pageNumber="5">Terebellides atlantis</emphasis>
</taxonomicName>
(IMNH 2492724928) (a) thoracic chaetigers 611, latero-ventral view, (bc) thoracic uncini, (d) abdominal uncinigers, (e) anterior abdominal unciniger, detail, (f) abdominal uncini. Scales: (a) 600 Μm, (b) 10 Μm, (c) 7 Μm, (d) 300 Μm, (e) 60 Μm, (f) 10 Μm.
</paragraph>
</caption>
<paragraph id="0759C17DFFCCEC4FFF130F8B9B62FF21" blockId="4.[151,1436,1784,2024]" lastBlockId="5.[151,1436,151,1544]" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5">
Eighteen pairs of notopodia (segments 320), compact, rectangular and of increasing size from first chaetiger backwards. Notochaetae of first three anterior chaetigers shorter and less numerous than notochaetae of subsequent notopodia (
<figureCitation id="9FDDDDF8FFCCEC4EFEC00E339F33F88E" box="[278,346,1856,1880]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="4" pageNumber="5">Fig. 2</figureCitation>
a). Neuropodia present as sessile pinnules from chaetiger 6 (segment 8) to pygidium. Neuropodial uncini in single rows throughout (
<figureCitation id="9FDDDDF8FFCCEC4EFDC30E169C33F8AB" box="[533,602,1893,1917]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="4" pageNumber="5">Fig. 2</figureCitation>
c; 3a). First thoracic neuropodia provided with about 5 sharply bent, acute tipped geniculate acicular hooks (
<figureCitation id="9FDDDDF8FFCCEC4EFDC40EFB9C3FF876" box="[530,598,1928,1952]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="4" pageNumber="5">Fig. 2</figureCitation>
cd). Upper part of geniculate chaetae provided with minute teeth forming a
<emphasis id="35921D6FFFCCEC4EFF7D0EDD9F64F813" box="[171,269,1966,1989]" italics="true" pageId="4" pageNumber="5">capitium</emphasis>
(
<figureCitation id="9FDDDDF8FFCCEC4EFECB0EDE9F09F813" box="[285,352,1965,1989]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="4" pageNumber="5">Fig. 2</figureCitation>
ef). Second and all subsequent thoracic neuropodia with up to 15 uncini per torus (
<figureCitation id="9FDDDDF8FFCCEC4EFAC50EDE9B3EF813" box="[1299,1367,1965,1989]" captionStart="FIGURE 2" captionStartId="3.[151,250,1899,1922]" captionTargetBox="[151,1436,409,1857]" captionTargetId="figure@3.[151,1436,409,1859]" captionTargetPageId="3" captionText="FIGURE 2. Terebellides atlantis (IMNH 24927 24928) (a) anterior end, latero-ventral view, (b) branchial ciliation, (c) thoracic chaetigers 5 7, (d) geniculate chaetae from chaetiger 6, (e f) detail of teeth of geniculate chaetae capitium. Scales: (a) 900 Μm, (b) 40 Μm, (c) 200 Μm, (d) 40 Μm, (e) 8 Μm, (f) 6 m." httpUri="https://zenodo.org/record/202359/files/figure.png" pageId="4" pageNumber="5">Fig. 2</figureCitation>
c; 3a). Uncini long-shafted denticulate hooks with main fang large, surmounted by 45 teeth and an upper crest of numerous teeth progressively shorter (
<figureCitation id="9FDDDDF8FFCDEC4FFDD009E49C23FF79" box="[518,586,151,175]" captionStart="FIGURE 3" captionStartId="4.[151,250,1656,1679]" captionTargetBox="[151,1436,179,1629]" captionTargetId="figure@4.[151,1436,179,1630]" captionTargetPageId="4" captionText="FIGURE 3. Terebellides atlantis (IMNH 24927 24928) (a) thoracic chaetigers 6 11, latero-ventral view, (b c) thoracic uncini, (d) abdominal uncinigers, (e) anterior abdominal unciniger, detail, (f) abdominal uncini. Scales: (a) 600 Μm, (b) 10 Μm, (c) 7 Μm, (d) 300 Μm, (e) 60 Μm, (f) 10 Μm." httpUri="https://zenodo.org/record/202360/files/figure.png" pageId="5" pageNumber="6">Fig. 3</figureCitation>
bc), dental formula: MF:45:∞. About 25 abdominal neuropodia as erect pinnules, with near 25 uncini per torus (
<figureCitation id="9FDDDDF8FFCDEC4FFD8409CF9CFAFF02" box="[594,659,188,212]" captionStart="FIGURE 3" captionStartId="4.[151,250,1656,1679]" captionTargetBox="[151,1436,179,1629]" captionTargetId="figure@4.[151,1436,179,1630]" captionTargetPageId="4" captionText="FIGURE 3. Terebellides atlantis (IMNH 24927 24928) (a) thoracic chaetigers 6 11, latero-ventral view, (b c) thoracic uncini, (d) abdominal uncinigers, (e) anterior abdominal unciniger, detail, (f) abdominal uncini. Scales: (a) 600 Μm, (b) 10 Μm, (c) 7 Μm, (d) 300 Μm, (e) 60 Μm, (f) 10 Μm." httpUri="https://zenodo.org/record/202360/files/figure.png" pageId="5" pageNumber="6">Fig. 3</figureCitation>
de); uncini provided with 4 teeth above main fang surmounted by 5 6 teeth and an upper crest of a variable number of smaller teeth (
<figureCitation id="9FDDDDF8FFCDEC4FFCBC09AC9DC5FF21" box="[874,940,223,247]" captionStart="FIGURE 3" captionStartId="4.[151,250,1656,1679]" captionTargetBox="[151,1436,179,1629]" captionTargetId="figure@4.[151,1436,179,1630]" captionTargetPageId="4" captionText="FIGURE 3. Terebellides atlantis (IMNH 24927 24928) (a) thoracic chaetigers 6 11, latero-ventral view, (b c) thoracic uncini, (d) abdominal uncinigers, (e) anterior abdominal unciniger, detail, (f) abdominal uncini. Scales: (a) 600 Μm, (b) 10 Μm, (c) 7 Μm, (d) 300 Μm, (e) 60 Μm, (f) 10 Μm." httpUri="https://zenodo.org/record/202360/files/figure.png" pageId="5" pageNumber="6">Fig. 3</figureCitation>
f), dental formula MF:4:45:∞.
</paragraph>
<paragraph id="0759C17DFFCDEC4FFF1308769DFDFEB2" blockId="5.[151,1436,151,1544]" pageId="5" pageNumber="6">
No nephridial papilla observed. Pygidium blunt, funnel-like depression with crenulated edge. MG staining pattern (
<figureCitation id="9FDDDDF8FFCDEC4FFF0508549F41FEE9" box="[211,296,295,319]" captionStart="FIGURE 13" captionStartId="15.[151,250,1917,1940]" captionTargetBox="[165,1426,197,1892]" captionTargetId="figure@15.[165,1450,197,1894]" captionTargetPageId="15" captionText="FIGURE 13. Methyl green staining of all Terebellides species found in BIOICE samples, anterior region in ventral view. (a) T. atlantis, (b) T. bigeniculatus sp. nov., (c) T. gracilis, (d) T. stroemii sensu Holthe (1986 a)." httpUri="https://zenodo.org/record/202370/files/figure.png" pageId="5" pageNumber="6">Fig. 13</figureCitation>
a): compact green coloration in first 13 segments, turning into a stripped pattern in segments 1420 and fading in the following segments. Colour in alcohol pale brown.
</paragraph>
</subSubSection>
<subSubSection id="4FFC92F6FFCDEC4FFF11081C9D3DFDEA" pageId="5" pageNumber="6" type="distribution">
<paragraph id="0759C17DFFCDEC4FFF11081C9D3DFDEA" blockId="5.[151,1436,151,1544]" pageId="5" pageNumber="6">
<emphasis id="35921D6FFFCDEC4FFF11081C9F09FE5E" bold="true" box="[199,352,367,392]" pageId="5" pageNumber="6">Distribution.</emphasis>
<taxonomicName id="C0E6BAFEFFCDEC4FFEBF08039C24FE5E" box="[361,589,368,392]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFEBF08039C24FE5E" box="[361,589,368,392]" italics="true" pageId="5" pageNumber="6">Terebellides atlantis</emphasis>
</taxonomicName>
was only known from the
<typeStatus id="D85D7FDFFFCDEC4FFC5108039DDEFE5E" box="[903,951,368,392]" pageId="5" pageNumber="6">type</typeStatus>
locality in the New
<collectingCountry id="7FF181EDFFCDEC4FFB70081C9B6AFE51" box="[1190,1283,367,391]" name="United Kingdom" pageId="5" pageNumber="6">England</collectingCountry>
slope (
<collectingCountry id="7FF181EDFFCDEC4FFA8F081C9BFDFE51" box="[1369,1428,367,391]" name="United States of America" pageId="5" pageNumber="6">USA</collectingCountry>
) (
<bibRefCitation id="6377BC8CFFCDEC4FFF4808E79F2EFE7A" author="Williams" box="[158,327,404,428]" pageId="5" pageNumber="6" refString="Williams, S. J. (1984) The status of Terebellides stroemi (Polychaeta; Trichobranchidae) as a cosmopolitan species, based in a worldwide morphological survey, including description of new species. In: Hutchings, P. A. (Ed). Proceedings of the First International Polychaete Conference, Sydney, Australia, 1984. The Linnean Society of New South Wales, 118 - 142." type="book chapter" year="1984">Williams 1984</bibRefCitation>
;
<bibRefCitation id="6377BC8CFFCDEC4FFE8408E79C0CFE7A" author="Hutchings" box="[338,613,404,428]" pageId="5" pageNumber="6" refString="Hutchings, P. &amp; Peart, R. (2000) A revision of the Australian Trichobranchidae (Polychaeta). Invertebrate Taxonomy, 14, 225 - 272." type="journal article" year="2000">Hutchings &amp; Peart 2000</bibRefCitation>
). The large number of specimens found among BIOICE material suggests that this species might have been overlooked in later studies in the North Atlantic, probably being confused with small specimens of
<taxonomicName id="C0E6BAFEFFCDEC4FFEAF08AE9F87FE22" box="[377,494,477,500]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="stroemii">
<emphasis id="35921D6FFFCDEC4FFEAF08AE9F87FE22" box="[377,494,477,500]" italics="true" pageId="5" pageNumber="6">T. stroemii</emphasis>
</taxonomicName>
.
<bibRefCitation id="6377BC8CFFCDEC4FFDD608AF9CD1FE22" author="Williams" box="[512,696,476,500]" pageId="5" pageNumber="6" refString="Williams, S. J. (1984) The status of Terebellides stroemi (Polychaeta; Trichobranchidae) as a cosmopolitan species, based in a worldwide morphological survey, including description of new species. In: Hutchings, P. A. (Ed). Proceedings of the First International Polychaete Conference, Sydney, Australia, 1984. The Linnean Society of New South Wales, 118 - 142." type="book chapter" year="1984">Williams (1984)</bibRefCitation>
reports the species in a narrow depth range (466 to 508 meters); our findings in the coast of
<collectingCountry id="7FF181EDFFCDEC4FFE11088C9C73FDC1" box="[455,538,511,535]" name="Iceland" pageId="5" pageNumber="6">Iceland</collectingCountry>
increase this range significantly, from shallower depths (
<quantity id="C01E6C98FFCDEC4FFB43088C9AB7FDC1" box="[1173,1246,511,535]" metricMagnitude="2" metricUnit="m" metricValue="1.73" pageId="5" pageNumber="6" unit="m" value="173.0">173 m</quantity>
) of the continental shelf to the deep slope near the bathyal boundary (
<quantity id="C01E6C98FFCDEC4FFD3B0B579D21FDEA" box="[749,840,548,572]" metricMagnitude="3" metricUnit="m" metricValue="3.0" pageId="5" pageNumber="6" unit="m" value="3000.0">3000 m</quantity>
).
</paragraph>
</subSubSection>
<subSubSection id="4FFC92F6FFCDEC4FFF110B3B9C55F9DE" pageId="5" pageNumber="6" type="discussion">
<paragraph id="0759C17DFFCDEC4FFF110B3B9C31FB12" blockId="5.[151,1436,151,1544]" pageId="5" pageNumber="6">
<emphasis id="35921D6FFFCDEC4FFF110B3B9F52FDB6" bold="true" box="[199,315,584,608]" pageId="5" pageNumber="6">Remarks.</emphasis>
Two of the most characteristic features of this species are its small size, much smaller than the other species found in
<collectingCountry id="7FF181EDFFCDEC4FFE830B1F9FCEFD52" box="[341,423,620,644]" name="Iceland" pageId="5" pageNumber="6">Iceland</collectingCountry>
(mature specimens were of
<quantity id="C01E6C98FFCDEC4FFD330B1F9D5CFD52" box="[741,821,620,644]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" pageId="5" pageNumber="6" unit="mm" value="13.0">13 mm</quantity>
in length) and the presence of branchiae, consisting of 14 basally fused lobes provided with loosely fused lamellae. This feature has been previously reported for other
<taxonomicName id="C0E6BAFEFFCDEC4FFF410BC79F77FD1A" box="[151,286,692,716]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
<emphasis id="35921D6FFFCDEC4FFF410BC79F77FD1A" box="[151,286,692,716]" italics="true" pageId="5" pageNumber="6">Terebellides</emphasis>
</taxonomicName>
species such as
<taxonomicName id="C0E6BAFEFFCDEC4FFE0B0BC69DEAFD1A" authority="Caullery, 1915" authorityName="Caullery" authorityYear="1915" box="[477,899,692,716]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="intoshi">
<emphasis id="35921D6FFFCDEC4FFE0B0BC69C2EFD1A" box="[477,583,692,716]" italics="true" pageId="5" pageNumber="6">T. intoshi</emphasis>
<bibRefCitation id="6377BC8CFFCDEC4FFD870BC79C9EFD1A" author="Caullery" box="[593,759,692,716]" pageId="5" pageNumber="6" refString="Caullery, M. (1915) Sur les Terebellides Malmgren du Siboga et les Terebelliens voisins. Bulletin de la Societe Zoologique Francaise, 40, 111 - 116." type="journal article" year="1915">Caullery, 1915</bibRefCitation>
(
<collectingCountry id="7FF181EDFFCDEC4FFCDE0BC79D12FD1A" box="[776,891,692,716]" name="Indonesia" pageId="5" pageNumber="6">Indonesia</collectingCountry>
)
</taxonomicName>
,
<taxonomicName id="C0E6BAFEFFCDEC4FFC460BC69B3CFD1A" authority="Hartman and Fauchald, 1971" authorityName="Hartman and Fauchald" authorityYear="1971" box="[912,1365,692,716]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="lobatus">
<emphasis id="35921D6FFFCDEC4FFC460BC69A69FD1A" box="[912,1024,692,716]" italics="true" pageId="5" pageNumber="6">T. lobatus</emphasis>
<bibRefCitation id="6377BC8CFFCDEC4FFBDF0BC69B3CFD1A" author="Hartman" box="[1033,1365,692,716]" pageId="5" pageNumber="6" refString="Hartman, O. &amp; Fauchald, K. (1971). Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic areas. Part II. Allan Hancock Monographs in Marine Biology, 6, 1 - 327." type="journal article" year="1971">Hartman and Fauchald, 1971</bibRefCitation>
</taxonomicName>
(New
<collectingCountry id="7FF181EDFFCDEC4FFF410BA49E90FD39" box="[151,249,727,751]" name="United Kingdom" pageId="5" pageNumber="6">England</collectingCountry>
),
<taxonomicName id="C0E6BAFEFFCDEC4FFEDA0BAA9D2AFD39" authority="Hutchings and Peart, 2000" authorityName="Hutchings and Peart" authorityYear="2000" box="[268,835,727,752]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="mundora">
<emphasis id="35921D6FFFCDEC4FFEDA0BAA9FE4FD26" box="[268,397,728,752]" italics="true" pageId="5" pageNumber="6">T. mundora</emphasis>
<bibRefCitation id="6377BC8CFFCDEC4FFE400BA49CABFD39" author="Hutchings" box="[406,706,727,751]" pageId="5" pageNumber="6" refString="Hutchings, P. &amp; Peart, R. (2000) A revision of the Australian Trichobranchidae (Polychaeta). Invertebrate Taxonomy, 14, 225 - 272." type="journal article" year="2000">Hutchings and Peart, 2000</bibRefCitation>
(
<collectingCountry id="7FF181EDFFCDEC4FFD070BA49D52FD39" box="[721,827,727,751]" name="Australia" pageId="5" pageNumber="6">Australia</collectingCountry>
)
</taxonomicName>
and
<taxonomicName id="C0E6BAFEFFCDEC4FFCAD0BAA9BF1FD39" authority="Garraffoni and Lana, 2003" authorityName="Garraffoni and Lana" authorityYear="2003" box="[891,1432,727,752]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="sepultura">
<emphasis id="35921D6FFFCDEC4FFCAD0BAA9A68FD26" box="[891,1025,728,752]" italics="true" pageId="5" pageNumber="6">T. sepultura</emphasis>
<bibRefCitation id="6377BC8CFFCDEC4FFBDF0BA49B5FFD39" author="Garraffoni" box="[1033,1334,727,751]" pageId="5" pageNumber="6" refString="Garraffoni, A. R. S. &amp; Lana, P. C. (2003) Species of Terebellides (Polychaeta, Terebellidae, Trichobranchinae) from the Brazilian coast. Iheringia, 93 (4), 355 - 363." type="journal article" year="2003">Garraffoni and Lana, 2003</bibRefCitation>
(
<collectingCountry id="7FF181EDFFCDEC4FFA900BA49BF9FD39" box="[1350,1424,727,751]" name="Brazil" pageId="5" pageNumber="6">Brazil</collectingCountry>
)
</taxonomicName>
.
<taxonomicName id="C0E6BAFEFFCDEC4FFF410B8F9F1AFCC2" box="[151,371,764,788]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="intoshi">
<emphasis id="35921D6FFFCDEC4FFF410B8F9F1AFCC2" box="[151,371,764,788]" italics="true" pageId="5" pageNumber="6">Terebellides intoshi</emphasis>
</taxonomicName>
differs from
<taxonomicName id="C0E6BAFEFFCDEC4FFDD90B8E9C17FCC2" box="[527,638,764,788]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFDD90B8E9C17FCC2" box="[527,638,764,788]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
in its larger body size (
<quantity id="C01E6C98FFCDEC4FFC400B8F9A7AFCC2" box="[918,1043,764,788]" metricMagnitude="-2" metricUnit="m" metricValue="5.5" metricValueMax="6.0" metricValueMin="5.0" pageId="5" pageNumber="6" unit="mm" value="55.0" valueMax="60.0" valueMin="50.0">5060 mm</quantity>
long and
<quantity id="C01E6C98FFCDEC4FFB5F0B8F9AA5FCC2" box="[1161,1228,764,788]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="5" pageNumber="6" unit="mm" value="4.0">4 mm</quantity>
wide), number of abdominal chaetigers (3540 vs.
<quantity id="C01E6C98FFCDEC4FFDDB0A6C9C2EFCE1" box="[525,583,799,823]" metricMagnitude="-1" metricUnit="m" metricValue="6.35" pageId="5" pageNumber="6" unit="in" value="25.0">25 in</quantity>
<taxonomicName id="C0E6BAFEFFCDEC4FFD980A529CD7FCEE" box="[590,702,800,824]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFD980A529CD7FCEE" box="[590,702,800,824]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
) and, following
<bibRefCitation id="6377BC8CFFCDEC4FFCAD0A6C9AA1FCE1" author="Imajima" box="[891,1224,799,823]" pageId="5" pageNumber="6" refString="Imajima, M. &amp; Williams, S. J. (1985) Trichobranchidae (Polychaeta) chiefly from the Sagami and Suruga Bays, collected by R / V Tansei-Maru (Cruises KT- 65 ~ 76). Bulletin of the National Science Museum, Tokyo, Ser. A, 11, 7 - 18." type="journal article" year="1985">Imajima and Williams (1985)</bibRefCitation>
description of this species, by the presence of two chaetigers with geniculate chaetae instead of one (but see below Discussion of
<taxonomicName id="C0E6BAFEFFCDEC4FFA510A369F47FC56" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="bigeniculatus" status="sp. nov.">
<emphasis id="35921D6FFFCDEC4FFA510A369F47FC56" italics="true" pageId="5" pageNumber="6">T. bigeniculatus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="2EA1A014FFCDEC4FFEE20A1B9FE7FC56" box="[308,398,872,896]" pageId="5" pageNumber="6" rank="species">
<emphasis id="35921D6FFFCDEC4FFEE20A1B9FE7FC56" bold="true" box="[308,398,872,896]" pageId="5" pageNumber="6">sp. nov.</emphasis>
</taxonomicNameLabel>
).
<taxonomicName id="C0E6BAFEFFCDEC4FFE730A1B9CECFC56" box="[421,645,872,896]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="lobatus">
<emphasis id="35921D6FFFCDEC4FFE730A1B9CECFC56" box="[421,645,872,896]" italics="true" pageId="5" pageNumber="6">Terebellides lobatus</emphasis>
</taxonomicName>
differs from
<taxonomicName id="C0E6BAFEFFCDEC4FFCCF0A1A9DE0FC56" box="[793,905,872,896]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFCCF0A1A9DE0FC56" box="[793,905,872,896]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
in its larger body size (up to
<quantity id="C01E6C98FFCDEC4FFB060A149B76FC56" box="[1232,1311,871,896]" metricMagnitude="-2" metricUnit="m" metricValue="3.0" pageId="5" pageNumber="6" unit="mm" value="30.0">30 mm</quantity>
long and
<quantity id="C01E6C98FFCDEC4FFA580A149EAAFC72" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="5" pageNumber="6" unit="mm" value="4.0">4 mm</quantity>
wide), and the degree of curvature of geniculate chaetae (90º in
<taxonomicName id="C0E6BAFEFFCDEC4FFC4A0AFE9A65FC72" box="[924,1036,908,932]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFC4A0AFE9A65FC72" box="[924,1036,908,932]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
vs. 135º in
<taxonomicName id="C0E6BAFEFFCDEC4FFB440AFE9B68FC72" box="[1170,1281,908,932]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="lobatus">
<emphasis id="35921D6FFFCDEC4FFB440AFE9B68FC72" box="[1170,1281,908,932]" italics="true" pageId="5" pageNumber="6">T. lobatus</emphasis>
</taxonomicName>
) and thoracic uncini (the front teeth of
<emphasis id="35921D6FFFCDEC4FFE660AC29C7BFC1E" box="[432,530,945,968]" italics="true" pageId="5" pageNumber="6">capitium</emphasis>
are much larger than the following) (see plate
<quantity id="C01E6C98FFCDEC4FFBF60ADC9A30FC11" box="[1056,1113,943,967]" metricMagnitude="-1" metricUnit="m" metricValue="5.08" pageId="5" pageNumber="6" unit="in" value="20.0">20 in</quantity>
<bibRefCitation id="6377BC8CFFCDEC4FFBB60AC29BF9FC11" author="Hartman" box="[1120,1424,943,968]" pageId="5" pageNumber="6" refString="Hartman, O. &amp; Fauchald, K. (1971). Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic areas. Part II. Allan Hancock Monographs in Marine Biology, 6, 1 - 327." type="journal article" year="1971">Hartman &amp; Fauchald 1971</bibRefCitation>
).
<taxonomicName id="C0E6BAFEFFCDEC4FFF410AA79FE0FC3A" box="[151,393,980,1004]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="mundora">
<emphasis id="35921D6FFFCDEC4FFF410AA79FE0FC3A" box="[151,393,980,1004]" italics="true" pageId="5" pageNumber="6">Terebellides mundora</emphasis>
</taxonomicName>
has sharply bent geniculate chaetae such as in
<taxonomicName id="C0E6BAFEFFCDEC4FFC410AA69A6EFC3A" box="[919,1031,980,1004]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFC410AA69A6EFC3A" box="[919,1031,980,1004]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
but the
<emphasis id="35921D6FFFCDEC4FFBB40AA69AD0FC3A" box="[1122,1209,981,1004]" italics="true" pageId="5" pageNumber="6">rostrum</emphasis>
is much shorter and with a blunt tip (although authors qualify it as pointed).
<taxonomicName id="C0E6BAFEFFCDEC4FFCEF0A8B9A5FFBC6" box="[825,1078,1016,1040]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="sepultura">
<emphasis id="35921D6FFFCDEC4FFCEF0A8B9A5FFBC6" box="[825,1078,1016,1040]" italics="true" pageId="5" pageNumber="6">Terebellides sepultura</emphasis>
</taxonomicName>
differs in having a very large branchial stalk and a posterior pair of branchial lobes much shorter than in
<taxonomicName id="C0E6BAFEFFCDEC4FFC280D6E9A19FBE2" box="[1022,1136,1052,1076]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFC280D6E9A19FBE2" box="[1022,1136,1052,1076]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
. Recently,
<bibRefCitation id="6377BC8CFFCDEC4FFB240D6F9BF5FBE2" author="Gagaev" box="[1266,1436,1052,1076]" pageId="5" pageNumber="6" refString="Gagaev, S. Y. (2009). Terebellides irinae sp. n., a new species of Terebellides (Polychaeta: Terebellidae) from the Arctic basin. Russian Journal of Marine Biology, 35, 474 - 478." type="journal article" year="2009">Gagaev (2009)</bibRefCitation>
described
<taxonomicName id="C0E6BAFEFFCDEC4FFEDF0D329F0CFB8E" box="[265,357,1089,1112]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="irinae">
<emphasis id="35921D6FFFCDEC4FFEDF0D329F0CFB8E" box="[265,357,1089,1112]" italics="true" pageId="5" pageNumber="6">T. irinae</emphasis>
</taxonomicName>
from the Canadian basin; this small-sized (6.6 to 14.6 mm long and 0.3 to 0.6 mm wide) species has also free branchial lobes. This species, characterized by
<bibRefCitation id="6377BC8CFFCDEC4FFCE10D179DB7FBAA" author="Gagaev" box="[823,990,1124,1148]" pageId="5" pageNumber="6" refString="Gagaev, S. Y. (2009). Terebellides irinae sp. n., a new species of Terebellides (Polychaeta: Terebellidae) from the Arctic basin. Russian Journal of Marine Biology, 35, 474 - 478." type="journal article" year="2009">Gagaev (2009)</bibRefCitation>
by the shorter size of the ventral pair of branchial lobes, very much resembles
<taxonomicName id="C0E6BAFEFFCDEC4FFD8B0DFA9CB8FB76" box="[605,721,1160,1184]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFD8B0DFA9CB8FB76" box="[605,721,1160,1184]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
. Unfortunately, the author does not provide any comparison between the new species and
<taxonomicName id="C0E6BAFEFFCDEC4FFE370DDE9C38FB12" box="[481,593,1196,1220]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFE370DDE9C38FB12" box="[481,593,1196,1220]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="0759C17DFFCDEC4FFF130DA39B03FAE6" blockId="5.[151,1436,151,1544]" pageId="5" pageNumber="6">
The study of several specimens under the SEM shows the presence of denticles on the upper part of the geniculate setae. In addition, the
<emphasis id="35921D6FFFCDEC4FFE180D869C59FADA" box="[462,560,1269,1292]" italics="true" pageId="5" pageNumber="6">capitium</emphasis>
of the thoracic uncini is endowed with teeth progressively shorter, which differs greatly from the appearance of that of the other three species of
<taxonomicName id="C0E6BAFEFFCDEC4FFC420C6B9A72FAE6" box="[916,1051,1304,1328]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="genus">
<emphasis id="35921D6FFFCDEC4FFC420C6B9A72FAE6" box="[916,1051,1304,1328]" italics="true" pageId="5" pageNumber="6">Terebellides</emphasis>
</taxonomicName>
found in
<collectingCountry id="7FF181EDFFCDEC4FFB510C6B9AB3FAE6" box="[1159,1242,1304,1328]" name="Iceland" pageId="5" pageNumber="6">Iceland</collectingCountry>
(see below).
</paragraph>
<paragraph id="0759C17DFFCDEC4FFF130C4F9CDDFA16" blockId="5.[151,1436,151,1544]" pageId="5" pageNumber="6">
The MG staining pattern observed in Icelandic specimens agrees well with pattern 1 proposed by
<bibRefCitation id="6377BC8CFFCDEC4FFAD90C4F9F34FAAE" author="Schuller" pageId="5" pageNumber="6" refString="Schuller, M. &amp; Hutchings, P. A. (2010) New insights in the taxonomy of Trichobranchidae (Polychaeta) with the description of a new Terebellides from Australia. Zootaxa, 2395, 1 - 16." type="journal article" year="2010">Schüller and Hutchings (2010)</bibRefCitation>
(i.e., anterior solid, subsequently striped and fading towards posterior thorax); nevertheless, the number of anterior completely stained chaetigers (solid chaetigers) is 11 as is described in
<bibRefCitation id="6377BC8CFFCDEC4FFB430CF79B24FA4A" author="Williams" box="[1173,1357,1412,1436]" pageId="5" pageNumber="6" refString="Williams, S. J. (1984) The status of Terebellides stroemi (Polychaeta; Trichobranchidae) as a cosmopolitan species, based in a worldwide morphological survey, including description of new species. In: Hutchings, P. A. (Ed). Proceedings of the First International Polychaete Conference, Sydney, Australia, 1984. The Linnean Society of New South Wales, 118 - 142." type="book chapter" year="1984">Williams (1984)</bibRefCitation>
(“ventral bands stain on 11 chaetigers”) and not three.
</paragraph>
<paragraph id="0759C17DFFCDEC4FFF130CBF9C55F9DE" blockId="5.[151,1436,151,1544]" pageId="5" pageNumber="6">
The specimens from the BIOICE cruises previously identified as
<taxonomicName id="C0E6BAFEFFCDEC4FFC770CBF9AC4FA32" box="[929,1197,1484,1508]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="stroemii">
<emphasis id="35921D6FFFCDEC4FFC770CBF9A41FA32" box="[929,1064,1484,1508]" italics="true" pageId="5" pageNumber="6">Terebellides</emphasis>
cf.
<emphasis id="35921D6FFFCDEC4FFB840CBE9AC4FA32" box="[1106,1197,1485,1508]" italics="true" pageId="5" pageNumber="6">stroemii</emphasis>
</taxonomicName>
by
<bibRefCitation id="6377BC8CFFCDEC4FFB010CBE9F76F9DE" author="Parapar" pageId="5" pageNumber="6" refString="Parapar, J. &amp; Moreira, J. (2008 a) Redescription of Terebellides kerguelensis stat. nov. (Polychaeta: Trichobranchidae) from Antartic and subantarctic waters. Helgoland Marine Research, 62, 143 - 152." type="journal article" year="2008" yearSuffix="a">Parapar and Moreira (2008a)</bibRefCitation>
correspond to
<taxonomicName id="C0E6BAFEFFCDEC4FFE100C829C5FF9DE" box="[454,566,1520,1544]" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="6" phylum="Annelida" rank="species" species="atlantis">
<emphasis id="35921D6FFFCDEC4FFE100C829C5FF9DE" box="[454,566,1520,1544]" italics="true" pageId="5" pageNumber="6">T. atlantis</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>