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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.992.55977" ID-GBIF-Dataset="400f6c73-92df-49ca-b27b-bbed9d9eacab" ID-PMC="PMC7677295" ID-Pensoft-Pub="1313-2970-992-1" ID-Pensoft-UUID="6F09FA35C1585CCF8F9B519ADD7C0BFA" ID-PubMed="33223905" ID-ZooBank="0F038B5B120E45838E854092C9798566" ModsDocID="1313-2970-992-1" checkinTime="1605278943020" checkinUser="pensoft" docAuthor="Parapar, Julio, Capa, Maria, Nygren, Arne &amp; Moreira, Juan" docDate="2020" docId="4AB21008C85752928E8C6076C4AC2266" docLanguage="en" docName="ZooKeys 992: 1-58" docOrigin="ZooKeys 992" docSource="http://dx.doi.org/10.3897/zookeys.992.55977" docTitle="Terebellides stroemii Sars 1835" docType="treatment" docVersion="4" id="6F09FA35C1585CCF8F9B519ADD7C0BFA" lastPageNumber="1" masterDocId="6F09FA35C1585CCF8F9B519ADD7C0BFA" masterDocTitle="To name but a few: descriptions of five new species of Terebellides (Annelida, Trichobranchidae) from the North East Atlantic" masterLastPageNumber="58" masterPageNumber="1" pageNumber="1" updateTime="1668169892664" updateUser="ExternalLinkService">
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<mods:titleInfo>
<mods:title>To name but a few: descriptions of five new species of Terebellides (Annelida, Trichobranchidae) from the North East Atlantic</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Parapar, Julio</mods:namePart>
<mods:affiliation>Departamento de Bioloxia, Universidade da Coruna, Spain</mods:affiliation>
<mods:nameIdentifier type="email">jparapar@udc.es</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Capa, Maria</mods:namePart>
<mods:affiliation>Departament de Biologia, Universitat de les Illes Balears, Spain</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Nygren, Arne</mods:namePart>
<mods:affiliation>Sjoefartmuseet Akvariet, Goeteborg, Sweden and Institutionen foer marina vetenskaper, Goeteborgs Universitet, Sweden</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Moreira, Juan</mods:namePart>
<mods:affiliation>Departamento de Biologia (Zoologia) &amp; Centro de Investigacion en Biodiversidad y Cambio Global (CIBC-UAM), Facultad de Ciencias, Universidad Autonoma de Madrid, Spain</mods:affiliation>
<mods:nameIdentifier type="orcid">https://orcid.org/0000-0002-1374-2033</mods:nameIdentifier>
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<mods:title>ZooKeys</mods:title>
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<mods:part>
<mods:date>2020</mods:date>
<mods:detail type="volume">
<mods:number>992</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>58</mods:end>
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<mods:url>http://dx.doi.org/10.3897/zookeys.992.55977</mods:url>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.992.55977</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-992-1</mods:identifier>
<mods:identifier type="ZooBank">0F038B5B120E45838E854092C9798566</mods:identifier>
<mods:identifier type="Pensoft-UUID">6F09FA35C1585CCF8F9B519ADD7C0BFA</mods:identifier>
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<treatment ID-GBIF-Taxon="169056282" LSID="urn:lsid:plazi:treatment:4AB21008C85752928E8C6076C4AC2266" httpUri="http://treatment.plazi.org/id/4AB21008C85752928E8C6076C4AC2266" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="4AB21008-C857-5292-8E8C-6076C4AC2266" authority="Sars, 1835" authorityName="Sars" authorityYear="1835" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Terebellides stroemii" order="Terebellida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="stroemii">Terebellides stroemii Sars, 1835</taxonomicName>
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Phylogenetic tree after Maximum Likelihood analyses on a concatenated dataset of cox 1, 16 S rDNA, ITS 2, and 28 S rDNA (as in Nygren et al. 2018). Bootstrap support values above nodes. Coloured squares indicate the major clades referred herein as Groups A-D. Within Group A, the focus of present study, subgroups A 1 - A 4 and species 6 - 13, 18 - 21, 23, 28 are labelled." figureDoi="10.3897/zookeys.992.55977.figure1" httpUri="https://binary.pensoft.net/fig/474795" pageId="0" pageNumber="1">Figs 1</figureCitation>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Phylogenetic tree after Maximum Likelihood analyses on a dataset of cox 1 (including all sequences in Nygren et al. 2018 and in Lavesque et al. 2019). Bootstrap support values above nodes. Species other than members of Group A are collapsed. Species with names refer to those dealt with in present study." figureDoi="10.3897/zookeys.992.55977.figure2" httpUri="https://binary.pensoft.net/fig/474796" pageId="0" pageNumber="1">, 2</figureCitation>
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. STM photographs of several Terebellides species. A Terebellides bakkeni sp. nov. (species 10; holotype, ZMBN 116395) B Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116397) C Terebellides kongsrudi sp. nov. (species 13; holotype, GNM 14632) D Terebellides bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; non-type specimen, ZMBN 116514) E Terebellides europaea Lavesque, Hutchings, Daffe, Nygren &amp; Londono-Mesa, 2019 (species 6; non-type specimen, GNM 14628) F Terebellides ronningae sp. nov. (species 7; holotype, ZMBN 116357) G Terebellides norvegica sp. nov. (species 8; holotype, ZMBN 416378) H Terebellides scotica sp. nov. (species 9; holotype, ZMBN 116385). Abbreviations: bdl - branchial dorsal lobe; bvl - branchial ventral lobe; TC - thoracic chaetiger." figureDoi="10.3897/zookeys.992.55977.figure3" httpUri="https://binary.pensoft.net/fig/474797" pageId="0" pageNumber="1">, 3B</figureCitation>
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Line drawings of several Terebellides species. A Terebellides bakkeni sp. nov. (species 10; holotype, ZMBN 116395), anterior end, right lateral view B Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116397), anterior end, right lateral view C Terebellides kongsrudi sp. nov. (species 13; holotype, GNM 14632), anterior end, left lateral view D Terebellides bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; non-type specimen, ZMBN 116514), anterior end, left lateral view. Abbreviations: bdl - branchial dorsal lobe; bvl - branchial ventral lobes; dpn - dorsal projection of notopodium; TC - thoracic chaetiger." figureDoi="10.3897/zookeys.992.55977.figure4" httpUri="https://binary.pensoft.net/fig/474798" pageId="0" pageNumber="1">, 4B</figureCitation>
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">, 7</figureCitation>
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Geographic distribution of A T. bakkeni sp. nov. B T. stroemii Sars, 1835 C T. kongsrudi sp. nov. D T. bigeniculatus Parapar, Moreira &amp; Helgason, 2011." figureDoi="10.3897/zookeys.992.55977.figure8" httpUri="https://binary.pensoft.net/fig/474802" pageId="0" pageNumber="1">, 8B</figureCitation>
<figureCitation captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Bathymetric distribution of Terebellides species studied in this work. Subgroups (A 1 - 3) within group A sensu Nygren et al. (2018) are indicated." figureDoi="10.3897/zookeys.992.55977.figure9" httpUri="https://binary.pensoft.net/fig/474803" pageId="0" pageNumber="1">, 9</figureCitation>
<figureCitation captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Map of Hordaland area (SW Norway) showing collecting sites of Terebellides species as found in Nygren et al. (2018) near type locality of T. stroemii Sars, 1835. Depth ranges shown in boxes." figureDoi="10.3897/zookeys.992.55977.figure10" httpUri="https://binary.pensoft.net/fig/474804" pageId="0" pageNumber="1">, 10</figureCitation>
<figureCitation captionStart="Figure 17" captionStartId="F17" captionText="Figure 17. Relationship between number of abdominal chaetigers and body length (complete specimens) for Terebellides species described in this work." figureDoi="10.3897/zookeys.992.55977.figure17" httpUri="https://binary.pensoft.net/fig/474811" pageId="0" pageNumber="1">, 17A</figureCitation>
<figureCitation captionStart="Figure 28" captionStartId="F28" captionText="Figure 28. SEM micrographs of abdominal uncini types of Terebellides species. A T. kongsrudi sp. nov. (species 13; ZMBN- 116409) B T. bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; ZMBN- 116513) C T. ronningae sp. nov. (species 7; ZMBN- 116353) D Terebellides stroemii Sars, 1835 (species 11; ZMBN- 116399). Abbreviations: ctr - capitium teeth row; ros - rostrum." figureDoi="10.3897/zookeys.992.55977.figure28" httpUri="https://binary.pensoft.net/fig/474822" pageId="0" pageNumber="1">, 28D</figureCitation>
; Suppl. material 1: Table S1; Suppl. material 2: Table S2
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="reference_group">
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Sars" authorityYear="1835" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Terebellides stroemii" order="Terebellida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="stroemii">Terebellides stroemii</taxonomicName>
Sars, 1835: 48-50, pl. 13, fig. 31a-e.
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
: 10, fig. 5-10.
<emphasis italics="true" pageId="0" pageNumber="1">Non</emphasis>
<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.2983.1.1" author="Parapar, J" journalOrPublisher="Zootaxa" pageId="0" pageNumber="1" pagination="1 - 20" refId="B29" refString="Parapar, J, Moreira, J, Helgason, GV, 2011. Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species. Zootaxa 2983: 1 - 20, DOI: https://doi.org/10.11646/zootaxa.2983.1.1" title="Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species." url="https://doi.org/10.11646/zootaxa.2983.1.1" volume="2983" year="2011">Parapar et al. 2011</bibRefCitation>
: 14-17, figs 11, 12, 13G.
</paragraph>
<paragraph pageId="0" pageNumber="1">
Species 11 -
<bibRefCitation DOI="https://doi.org/10.1371/journal.pone.0198356" author="Nygren, A" journalOrPublisher="Molecular Biology and Evolution" pageId="0" pageNumber="1" refId="B22" refString="Nygren, A, Parapar, J, Pons, J, Meissner, K, Bakken, T, Kongsrud, JA, Oug, E, Gaeva, D, Sikorski, A, Johansen, RA, Hutchings, PA, Lavesque, N, Capa, M, 2018. A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13(6): e0198356. https://doi.org/10.1371/journal.pone.0198356" title="A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13 (6): e 0198356." url="https://doi.org/10.1371/journal.pone.0198356" year="2018">Nygren et al. 2018</bibRefCitation>
: 18-22, figs 6, 10.
<emphasis italics="true" pageId="0" pageNumber="1">Non</emphasis>
Clade 6 in
<bibRefCitation DOI="https://doi.org/10.1371/journal.pone.0198356" author="Nygren, A" journalOrPublisher="Molecular Biology and Evolution" pageId="0" pageNumber="1" refId="B22" refString="Nygren, A, Parapar, J, Pons, J, Meissner, K, Bakken, T, Kongsrud, JA, Oug, E, Gaeva, D, Sikorski, A, Johansen, RA, Hutchings, PA, Lavesque, N, Capa, M, 2018. A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13(6): e0198356. https://doi.org/10.1371/journal.pone.0198356" title="A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13 (6): e 0198356." url="https://doi.org/10.1371/journal.pone.0198356" year="2018">Nygren et al. (2018)</bibRefCitation>
(see Remarks).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="type locality">
<paragraph pageId="0" pageNumber="1">Type locality.</paragraph>
<paragraph pageId="0" pageNumber="1">
Helle, Manger, Bergenfjord (Norway) (
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Material examined.</paragraph>
<paragraph pageId="0" pageNumber="1">5 specimens (Suppl. material 1: Table S1), Norwegian coast and shelf: ZMBN 116397, ZMBN 116398, ZMBN 116399, ZMBN 116400, ZMBN 116401.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">A dditional material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Neotype</emphasis>
(NHMOC5896) and seven &quot;
<emphasis bold="true" pageId="0" pageNumber="1">neoparatypes</emphasis>
&quot; (NHMOC5899, NHMOC5902, NHMOC5904, NHMOC5905, NHMOC5907, NHMOC5956, NHMOC5968) of
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
(Suppl. material 1: Table S1).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">GenBank accession numbers of material examined (COI).</paragraph>
<paragraph pageId="0" pageNumber="1">MG025171, MG025172, MG025173, MG025174, MG025175.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Diagnostic features of studied material.</paragraph>
<paragraph pageId="0" pageNumber="1">
Complete individuals ranging from 6.0-20.0 mm in length (Fig.
<figureCitation captionStart="Figure 17" captionStartId="F17" captionText="Figure 17. Relationship between number of abdominal chaetigers and body length (complete specimens) for Terebellides species described in this work." figureDoi="10.3897/zookeys.992.55977.figure17" httpUri="https://binary.pensoft.net/fig/474811" pageId="0" pageNumber="1">17A</figureCitation>
). Branchial dorsal lobes lamellae without papillary projections. Ventral branchial lobes hidden behind dorsal lobes (Figs
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. STM photographs of several Terebellides species. A Terebellides bakkeni sp. nov. (species 10; holotype, ZMBN 116395) B Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116397) C Terebellides kongsrudi sp. nov. (species 13; holotype, GNM 14632) D Terebellides bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; non-type specimen, ZMBN 116514) E Terebellides europaea Lavesque, Hutchings, Daffe, Nygren &amp; Londono-Mesa, 2019 (species 6; non-type specimen, GNM 14628) F Terebellides ronningae sp. nov. (species 7; holotype, ZMBN 116357) G Terebellides norvegica sp. nov. (species 8; holotype, ZMBN 416378) H Terebellides scotica sp. nov. (species 9; holotype, ZMBN 116385). Abbreviations: bdl - branchial dorsal lobe; bvl - branchial ventral lobe; TC - thoracic chaetiger." figureDoi="10.3897/zookeys.992.55977.figure3" httpUri="https://binary.pensoft.net/fig/474797" pageId="0" pageNumber="1">3B</figureCitation>
,
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Line drawings of several Terebellides species. A Terebellides bakkeni sp. nov. (species 10; holotype, ZMBN 116395), anterior end, right lateral view B Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116397), anterior end, right lateral view C Terebellides kongsrudi sp. nov. (species 13; holotype, GNM 14632), anterior end, left lateral view D Terebellides bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; non-type specimen, ZMBN 116514), anterior end, left lateral view. Abbreviations: bdl - branchial dorsal lobe; bvl - branchial ventral lobes; dpn - dorsal projection of notopodium; TC - thoracic chaetiger." figureDoi="10.3897/zookeys.992.55977.figure4" httpUri="https://binary.pensoft.net/fig/474798" pageId="0" pageNumber="1">4B</figureCitation>
). Lateral lappets present on TC1-TC4; dorsal projection well marked from TC3-TC4 (Fig.
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7A</figureCitation>
). Geniculate chaetae in TC6, acutely bent (Fig.
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7C</figureCitation>
) with low marked capitium. Ciliated papilla dorsal to thoracic notopodia (Fig.
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7B</figureCitation>
). Thoracic uncini in one row with rostrum/capitium length ratio approximately 2: 1 and capitium with a first row of three or four medium-sized teeth, followed by several smaller teeth (Fig.
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7E, F</figureCitation>
). Abdomen with 23-32 chaetigers (Fig.
<figureCitation captionStart="Figure 17" captionStartId="F17" captionText="Figure 17. Relationship between number of abdominal chaetigers and body length (complete specimens) for Terebellides species described in this work." figureDoi="10.3897/zookeys.992.55977.figure17" httpUri="https://binary.pensoft.net/fig/474811" pageId="0" pageNumber="1">17A</figureCitation>
) with type 2 uncini (Figs
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7G</figureCitation>
,
<figureCitation captionStart="Figure 28" captionStartId="F28" captionText="Figure 28. SEM micrographs of abdominal uncini types of Terebellides species. A T. kongsrudi sp. nov. (species 13; ZMBN- 116409) B T. bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; ZMBN- 116513) C T. ronningae sp. nov. (species 7; ZMBN- 116353) D Terebellides stroemii Sars, 1835 (species 11; ZMBN- 116399). Abbreviations: ctr - capitium teeth row; ros - rostrum." figureDoi="10.3897/zookeys.992.55977.figure28" httpUri="https://binary.pensoft.net/fig/474822" pageId="0" pageNumber="1">28D</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="nucleotide diagnostic features">
<paragraph pageId="0" pageNumber="1">Nucleotide diagnostic features.</paragraph>
<paragraph pageId="0" pageNumber="1">
There are no unique apomorphic nucleotides in the fragments of COI analysed for
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
, when considering all
<taxonomicName class="Polychaeta" family="Trichobranchidae" genus="Terebellides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Terebellides" order="Terebellida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Terebellides</emphasis>
</taxonomicName>
species present in the NEA (Suppl. material 2: Table S2). However, when comparing homologous nucleotide positions with members of only Group A (183 sequences in the COI alignment), the following autapomorphies arise: 174 (C), 183 (C), 453 (A), 612 (C).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="distribution">
<paragraph pageId="0" pageNumber="1">Distribution and bathymetry.</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Sars" authorityYear="1835" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Terebellides stroemii" order="Terebellida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">Terebellides stroemii</emphasis>
</taxonomicName>
was traditionally considered as a cosmopolitan species, but its known distribution seems in fact restricted to the Norwegian coastline (
<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.2983.1.1" author="Parapar, J" journalOrPublisher="Zootaxa" pageId="0" pageNumber="1" pagination="1 - 20" refId="B29" refString="Parapar, J, Moreira, J, Helgason, GV, 2011. Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species. Zootaxa 2983: 1 - 20, DOI: https://doi.org/10.11646/zootaxa.2983.1.1" title="Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species." url="https://doi.org/10.11646/zootaxa.2983.1.1" volume="2983" year="2011">Parapar et al. 2011</bibRefCitation>
;
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
;
<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.4664.2.1" author="Lavesque, N" journalOrPublisher="Zootaxa" pageId="0" pageNumber="1" pagination="151 - 190" refId="B18" refString="Lavesque, N, Hutchings, P, Daffe, G, Nygren, A, Londono-Mesa, MH, 2019. A revision of the French Trichobranchidae (Polychaeta), with descriptions of nine new species. Zootaxa 4664 (2): 151 - 190, DOI: https://doi.org/10.11646/zootaxa.4664.2.1" title="A revision of the French Trichobranchidae (Polychaeta), with descriptions of nine new species." url="https://doi.org/10.11646/zootaxa.4664.2.1" volume="4664" year="2019">Lavesque et al. 2019</bibRefCitation>
). Specimens examined by
<bibRefCitation DOI="https://doi.org/10.1371/journal.pone.0198356" author="Nygren, A" journalOrPublisher="Molecular Biology and Evolution" pageId="0" pageNumber="1" refId="B22" refString="Nygren, A, Parapar, J, Pons, J, Meissner, K, Bakken, T, Kongsrud, JA, Oug, E, Gaeva, D, Sikorski, A, Johansen, RA, Hutchings, PA, Lavesque, N, Capa, M, 2018. A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13(6): e0198356. https://doi.org/10.1371/journal.pone.0198356" title="A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13 (6): e 0198356." url="https://doi.org/10.1371/journal.pone.0198356" year="2018">Nygren et al. (2018)</bibRefCitation>
and in the present paper, obtained after comprehensive sampling in the NEA, were found only in W Norway, between 115 and 388 m deep (Figs
<figureCitation captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Geographic distribution of A T. bakkeni sp. nov. B T. stroemii Sars, 1835 C T. kongsrudi sp. nov. D T. bigeniculatus Parapar, Moreira &amp; Helgason, 2011." figureDoi="10.3897/zookeys.992.55977.figure8" httpUri="https://binary.pensoft.net/fig/474802" pageId="0" pageNumber="1">8B</figureCitation>
,
<figureCitation captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Map of Hordaland area (SW Norway) showing collecting sites of Terebellides species as found in Nygren et al. (2018) near type locality of T. stroemii Sars, 1835. Depth ranges shown in boxes." figureDoi="10.3897/zookeys.992.55977.figure10" httpUri="https://binary.pensoft.net/fig/474804" pageId="0" pageNumber="1">10</figureCitation>
; Suppl. material 1: Table S1).
</paragraph>
<caption doi="10.3897/zookeys.992.55977.figure10" httpUri="https://binary.pensoft.net/fig/474804" pageId="0" pageNumber="1" start="Figure 10" startId="F10">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 10.</emphasis>
Map of Hordaland area (SW Norway) showing collecting sites of
<taxonomicName class="Polychaeta" family="Trichobranchidae" genus="Terebellides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Terebellides" order="Terebellida" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Terebellides</emphasis>
</taxonomicName>
species as found in
<bibRefCitation DOI="https://doi.org/10.1371/journal.pone.0198356" author="Nygren, A" journalOrPublisher="Molecular Biology and Evolution" pageId="0" pageNumber="1" refId="B22" refString="Nygren, A, Parapar, J, Pons, J, Meissner, K, Bakken, T, Kongsrud, JA, Oug, E, Gaeva, D, Sikorski, A, Johansen, RA, Hutchings, PA, Lavesque, N, Capa, M, 2018. A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13(6): e0198356. https://doi.org/10.1371/journal.pone.0198356" title="A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13 (6): e 0198356." url="https://doi.org/10.1371/journal.pone.0198356" year="2018">Nygren et al. (2018)</bibRefCitation>
near type locality of
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
Sars, 1835. Depth ranges shown in boxes.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">
In the five sequences belonging to this species, there were four haplotypes showing 0-1.1% of intraspecific divergence, and a minimum of 11.5% uncorrected genetic distance with members of the closest relative,
<taxonomicName lsidName="T. bakkeni" pageId="0" pageNumber="1" rank="species" species="bakkeni">
<emphasis italics="true" pageId="0" pageNumber="1">T. bakkeni</emphasis>
</taxonomicName>
sp. nov. (
<bibRefCitation DOI="https://doi.org/10.1371/journal.pone.0198356" author="Nygren, A" journalOrPublisher="Molecular Biology and Evolution" pageId="0" pageNumber="1" refId="B22" refString="Nygren, A, Parapar, J, Pons, J, Meissner, K, Bakken, T, Kongsrud, JA, Oug, E, Gaeva, D, Sikorski, A, Johansen, RA, Hutchings, PA, Lavesque, N, Capa, M, 2018. A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13(6): e0198356. https://doi.org/10.1371/journal.pone.0198356" title="A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13 (6): e 0198356." url="https://doi.org/10.1371/journal.pone.0198356" year="2018">Nygren et al. 2018</bibRefCitation>
).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Sars" authorityYear="1835" class="Polychaeta" family="Trichobranchidae" genus="Terebellides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Terebellides stroemii" order="Terebellida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">Terebellides stroemii</emphasis>
</taxonomicName>
is a large species, reaching up to 52 mm in length (
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
) and is characterised by the presence of ciliated papilla dorsal to thoracic notopodia, lack of papillae on margins of branchial lamellae, thoracic uncini of type 3 and abdominal uncini of type 2. All these features are shared with
<taxonomicName lsidName="T. kongsrudi" pageId="0" pageNumber="1" rank="species" species="kongsrudi">
<emphasis italics="true" pageId="0" pageNumber="1">T. kongsrudi</emphasis>
</taxonomicName>
sp. nov.;
<taxonomicName lsidName="T. bakkeni" pageId="0" pageNumber="1" rank="species" species="bakkeni">
<emphasis italics="true" pageId="0" pageNumber="1">T. bakkeni</emphasis>
</taxonomicName>
sp. nov. is also very close morphologically to
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
but they differ in the morphology of the abdominal uncini as explained above.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<bibRefCitation DOI="https://doi.org/10.1371/journal.pone.0198356" author="Nygren, A" journalOrPublisher="Molecular Biology and Evolution" pageId="0" pageNumber="1" refId="B22" refString="Nygren, A, Parapar, J, Pons, J, Meissner, K, Bakken, T, Kongsrud, JA, Oug, E, Gaeva, D, Sikorski, A, Johansen, RA, Hutchings, PA, Lavesque, N, Capa, M, 2018. A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13(6): e0198356. https://doi.org/10.1371/journal.pone.0198356" title="A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic. PLOS ONE 13 (6): e 0198356." url="https://doi.org/10.1371/journal.pone.0198356" year="2018">Nygren et al. (2018)</bibRefCitation>
misidentified species 6 as
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
, but this was later corrected by
<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.4664.2.1" author="Lavesque, N" journalOrPublisher="Zootaxa" pageId="0" pageNumber="1" pagination="151 - 190" refId="B18" refString="Lavesque, N, Hutchings, P, Daffe, G, Nygren, A, Londono-Mesa, MH, 2019. A revision of the French Trichobranchidae (Polychaeta), with descriptions of nine new species. Zootaxa 4664 (2): 151 - 190, DOI: https://doi.org/10.11646/zootaxa.4664.2.1" title="A revision of the French Trichobranchidae (Polychaeta), with descriptions of nine new species." url="https://doi.org/10.11646/zootaxa.4664.2.1" volume="4664" year="2019">Lavesque et al. (2019)</bibRefCitation>
who pointed out that the molecular sequences of these specimens fit with those of
<taxonomicName lsidName="T. europaea" pageId="0" pageNumber="1" rank="species" species="europaea">
<emphasis italics="true" pageId="0" pageNumber="1">T. europaea</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph pageId="0" pageNumber="1">
Specimens examined here bear thoracic uncini that are most similar to other members of Group A; SEM examination showed, however, that some uncini have a rostrum distal tip that is distinctly bent downwards (deformity?) (Fig.
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7E</figureCitation>
, arrow) as already described for the type specimens by
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings (2014</bibRefCitation>
: 8, fig. 7F, G), and attributed to preservation for too long in EtOH. However, we have found similar bent rostrum among specimens of
<taxonomicName lsidName="T. kongsrudi" pageId="0" pageNumber="1" rank="species" species="kongsrudi">
<emphasis italics="true" pageId="0" pageNumber="1">T. kongsrudi</emphasis>
</taxonomicName>
sp. nov. (Fig.
<figureCitation captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Terebellides kongsrudi sp. nov. (species 13; paratype, ZMBN 116409), SEM micrographs. A TC 6 (TU 1) geniculate chaeta B detail of geniculate chaeta (arrow pointing to capitium) C-E thoracic uncini, lateral and frontal views (arrow in D pointing to rostrum curved at distal end) F abdominal unciniger G abdominal uncini, frontal view (framed in F)." figureDoi="10.3897/zookeys.992.55977.figure12" httpUri="https://binary.pensoft.net/fig/474806" pageId="0" pageNumber="1">12D</figureCitation>
, arrow),
<taxonomicName lsidName="T. ronningae" pageId="0" pageNumber="1" rank="species" species="ronningae">
<emphasis italics="true" pageId="0" pageNumber="1">T. ronningae</emphasis>
</taxonomicName>
sp. nov. (species 7) (Fig.
<figureCitation captionStart="Figure 21" captionStartId="F21" captionText="Figure 21. Terebellides ronningae sp. nov. (species 7; paratypes, ZMBN 116349 and ZMBN 116353), SEM micrographs. A TC 6 (TU 1), geniculate chaetae B geniculate chaeta, detail (framed in A) C-E thoracic uncini (arrows in C pointing to rostrum curved at distal end) F abdominal uncini. Abbreviations: cap - capitium; ctr 1 / 2 - first and second rows of capitium teeth; ros - rostrum." figureDoi="10.3897/zookeys.992.55977.figure21" httpUri="https://binary.pensoft.net/fig/474815" pageId="0" pageNumber="1">21C</figureCitation>
, arrows) and
<taxonomicName lsidName="T. bigeniculatus" pageId="0" pageNumber="1" rank="species" species="bigeniculatus">
<emphasis italics="true" pageId="0" pageNumber="1">T. bigeniculatus</emphasis>
</taxonomicName>
(species 20 + 28) (Fig.
<figureCitation captionStart="Figure 26" captionStartId="F26" captionText="Figure 26. Terebellides bigeniculatus Parapar, Moreira &amp; Helgason, 2011 (species 20 + 28; non-type specimens, ZMBN 116512 and ZMBM 116513), SEM micrographs. A anterior end, left lateral view B branchiae, ventral view C TC 5 and TC 6 (framed: geniculate chaetae location) D geniculate chaeta (framed in C) E thoracic uncini (framed: uncinus rostrum with curved distal end) F abdominal uncini. Abbreviations: bdl - branchial dorsal lobe; TC - thoracic chaetiger." figureDoi="10.3897/zookeys.992.55977.figure26" httpUri="https://binary.pensoft.net/fig/474820" pageId="0" pageNumber="1">26E</figureCitation>
, frame) suggesting this may not be related to preservation. The abdominal uncini are quite similar to those described in
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings (2014</bibRefCitation>
: 9, fig. 8C-E) also showing a small gap among the anteriormost teeth of rostrum (
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
: 8-9, fig. 8F; Fig.
<figureCitation captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Terebellides stroemii Sars, 1835 (species 11; non-type specimen, ZMBN 116399), SEM micrographs. A anterior end, right lateral view B TC 6 to TC 8, lateral view C geniculate chaetae D TC 4 and TC 5, nephridial papillae E, F thoracic uncini (arrow in E pointing to rostrum curved at distal end) G abdominal uncini. Abbreviations: bdl - branchial dorsal lobes; dpn - dorsal projection of notopodium; np - nephridial papilla; TC - thoracic chaetiger; tdp - thoracic dorsal papilla; tm - tentacular membrane." figureDoi="10.3897/zookeys.992.55977.figure7" httpUri="https://binary.pensoft.net/fig/474801" pageId="0" pageNumber="1">7G</figureCitation>
); these features are not shared by other species of subgroup A1, i.e.,
<taxonomicName lsidName="T. bakkeni" pageId="0" pageNumber="1" rank="species" species="bakkeni">
<emphasis italics="true" pageId="0" pageNumber="1">T. bakkeni</emphasis>
</taxonomicName>
sp. nov. and
<taxonomicName lsidName="T. kongsrudi" pageId="0" pageNumber="1" rank="species" species="kongsrudi">
<emphasis italics="true" pageId="0" pageNumber="1">T. kongsrudi</emphasis>
</taxonomicName>
sp. nov. In all, species 11 agrees well with the redescription of
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph pageId="0" pageNumber="1">
Geographic and bathymetric distribution of our specimens also agree with that of
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
(see
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
), with Manger (Norway) (i.e., type locality of
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
; Fig.
<figureCitation captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Map of Hordaland area (SW Norway) showing collecting sites of Terebellides species as found in Nygren et al. (2018) near type locality of T. stroemii Sars, 1835. Depth ranges shown in boxes." figureDoi="10.3897/zookeys.992.55977.figure10" httpUri="https://binary.pensoft.net/fig/474804" pageId="0" pageNumber="1">10</figureCitation>
) being its southernmost distribution limit. The other three taxa, i.e., species 5,
<taxonomicName lsidName="T. europaea" pageId="0" pageNumber="1" rank="species" species="europaea">
<emphasis italics="true" pageId="0" pageNumber="1">T. europaea</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="T. bigeniculatus" pageId="0" pageNumber="1" rank="species" species="bigeniculatus">
<emphasis italics="true" pageId="0" pageNumber="1">T. bigeniculatus</emphasis>
</taxonomicName>
, were also found near Manger, but all can be clearly distinguished morphologically from each other (see above and below for
<taxonomicName lsidName="T. europaea" pageId="0" pageNumber="1" rank="species" species="europaea">
<emphasis italics="true" pageId="0" pageNumber="1">T. europaea</emphasis>
</taxonomicName>
and
<taxonomicName lsidName="T. bigeniculatus" pageId="0" pageNumber="1" rank="species" species="bigeniculatus">
<emphasis italics="true" pageId="0" pageNumber="1">T. bigeniculatus</emphasis>
</taxonomicName>
) and species 5 belongs to Group B and seems closer morphologically to
<taxonomicName lsidName="T. atlantis" pageId="0" pageNumber="1" rank="species" species="atlantis">
<emphasis italics="true" pageId="0" pageNumber="1">T. atlantis</emphasis>
</taxonomicName>
. On the other hand, type specimens of
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
come from depths of 55-110 m (
<bibRefCitation DOI="https://doi.org/10.1017/S0025315414000903" author="Parapar, J" journalOrPublisher="Journal of the Marine Biological Association of the United Kingdom" pageId="0" pageNumber="1" pagination="323 - 337" refId="B23" refString="Parapar, J, Hutchings, P, 2014. Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype. Journal of the Marine Biological Association of the United Kingdom 95: 323 - 337, DOI: https://doi.org/10.1017/S0025315414000903" title="Redescription of Terebellides stroemii (Polychaeta, Trichobranchidae) and designation of a neotype." url="https://doi.org/10.1017/S0025315414000903" volume="95" year="2014">Parapar and Hutchings 2014</bibRefCitation>
) as well as specimens belonging to
<taxonomicName lsidName="T. europaea" pageId="0" pageNumber="1" rank="species" species="europaea">
<emphasis italics="true" pageId="0" pageNumber="1">T. europaea</emphasis>
</taxonomicName>
,
<taxonomicName lsidName="T. ronningae" pageId="0" pageNumber="1" rank="species" species="ronningae">
<emphasis italics="true" pageId="0" pageNumber="1">T. ronningae</emphasis>
</taxonomicName>
sp. nov.,
<taxonomicName lsidName="T. scotica" pageId="0" pageNumber="1" rank="species" species="scotica">
<emphasis italics="true" pageId="0" pageNumber="1">T. scotica</emphasis>
</taxonomicName>
sp. nov. (species 9) and species 12 (&lt;200 m), and therefore they seem to constitute a shallow-water assemblage of species from an ecological point of view.
</paragraph>
<paragraph pageId="0" pageNumber="1">
Finally, the Icelandic specimens reported as
<taxonomicName lsidName="T. stroemii" pageId="0" pageNumber="1" rank="species" species="stroemii">
<emphasis italics="true" pageId="0" pageNumber="1">T. stroemii</emphasis>
</taxonomicName>
by
<bibRefCitation DOI="https://doi.org/10.11646/zootaxa.2983.1.1" author="Parapar, J" journalOrPublisher="Zootaxa" pageId="0" pageNumber="1" pagination="1 - 20" refId="B29" refString="Parapar, J, Moreira, J, Helgason, GV, 2011. Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species. Zootaxa 2983: 1 - 20, DOI: https://doi.org/10.11646/zootaxa.2983.1.1" title="Taxonomy and distribution of Terebellides (Polychaeta, Trichobranchidae) in Icelandic waters, with the description of a new species." url="https://doi.org/10.11646/zootaxa.2983.1.1" volume="2983" year="2011">Parapar et al. (2011)</bibRefCitation>
might not correspond to this species. In fact, it is likely that they represent at least two different species, namely
<taxonomicName lsidName="T. bakkeni" pageId="0" pageNumber="1" rank="species" species="bakkeni">
<emphasis italics="true" pageId="0" pageNumber="1">T. bakkeni</emphasis>
</taxonomicName>
sp. nov. and
<taxonomicName lsidName="T. kongsrudi" pageId="0" pageNumber="1" rank="species" species="kongsrudi">
<emphasis italics="true" pageId="0" pageNumber="1">T. kongsrudi</emphasis>
</taxonomicName>
sp. nov., both reported here to the North and East of Iceland. Therefore, the aforementioned specimens deserve further revision.
</paragraph>
</subSubSection>
</treatment>
</document>
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