278 lines
35 KiB
XML
278 lines
35 KiB
XML
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<mods:title id="EB0613E7A9572B095E5BB6F1C8F903D8">New species and records of Caulleriella, Chaetocirratulus and Chaetozone (Annelida, Cirratulidae) from continental shelf and slope depths of the Western North Atlantic Ocean</mods:title>
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<mods:namePart id="F5D649557868B06B2E23C857A1A87A5E">Blake, James A.</mods:namePart>
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<mods:date id="4C848A34A1386D1507CA606792C65DC6">2022</mods:date>
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<treatment id="054C717B7113236A65DDFF14FD98FED0" ID-DOI="http://doi.org/10.5281/zenodo.6958000" ID-GBIF-Taxon="198574503" ID-Zenodo-Dep="6958000" LSID="urn:lsid:zoobank.org:act:D83CE795-FBD8-41D1-8242-8CA989E8A68A" httpUri="http://treatment.plazi.org/id/054C717B7113236A65DDFF14FD98FED0" lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
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<subSubSection id="C5FF93E67113236B65DDFF14FD8AFF7C" box="[151,597,151,178]" pageId="8" pageNumber="9" type="nomenclature">
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<paragraph id="8D5AC06D7113236B65DDFF14FD8AFF7C" blockId="8.[151,597,151,178]" box="[151,597,151,178]" pageId="8" pageNumber="9">
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<emphasis id="BF911C7F7113236B65DDFF14FD8AFF7C" bold="true" box="[151,597,151,178]" pageId="8" pageNumber="9">
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Genus
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<taxonomicName id="4AE5BBEE7113236B65A4FF14FD8AFF7C" ID-CoL="84N9Y" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[238,597,151,178]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B65A4FF14FE64FF7F" bold="true" box="[238,443,151,178]" italics="true" pageId="8" pageNumber="9">Chaetocirratulus</emphasis>
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<bibRefCitation id="E974BD9C7113236B6489FF14FD8AFF7C" author="Blake, J. A." box="[451,597,151,177]" pageId="8" pageNumber="9" pagination="1 - 130" refId="ref57500" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537, 1 - 130. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake, 2018</bibRefCitation>
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</taxonomicName>
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</emphasis>
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</paragraph>
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</subSubSection>
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<subSubSection id="C5FF93E67113236B65DDFF5FFB85FF39" box="[151,1114,219,244]" pageId="8" pageNumber="9" type="type_taxon">
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<paragraph id="8D5AC06D7113236B65DDFF5FFB85FF39" blockId="8.[151,1114,219,244]" box="[151,1114,219,244]" pageId="8" pageNumber="9">
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<emphasis id="BF911C7F7113236B65DDFF5FFEC1FF3E" bold="true" box="[151,286,219,244]" pageId="8" pageNumber="9">
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<typeStatus id="525E7ECF7113236B65DDFF5FFF13FF39" box="[151,204,220,244]" pageId="8" pageNumber="9">Type</typeStatus>
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species
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</emphasis>
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:
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<taxonomicName id="4AE5BBEE7113236B6460FF5FFD3FFF39" ID-CoL="6M4QK" authority="Augener, 1932" authorityName="Augener" authorityYear="1932" box="[298,736,220,244]" class="Polychaeta" family="Cirratulidae" genus="Heterocirrus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="andersenensis">
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<emphasis id="BF911C7F7113236B6460FF5FFD9CFF39" box="[298,579,220,244]" italics="true" pageId="8" pageNumber="9">Heterocirrus andersenensis</emphasis>
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<bibRefCitation id="E974BD9C7113236B670DFF5FFD3FFF39" author="Augener, H." box="[583,736,220,244]" pageId="8" pageNumber="9" refId="ref57036" refString="Augener, H. (1932) Antarktische und antiboreale Polychaeten nebst einer Hirudinee. Scientific Results of the Norwegian Antarctic Expeditions 1927 - 1928. Vol. 9. Det Norske Videnskaps-Akademi, Oslo, 86 pp., 1 pl." type="book" year="1932">Augener, 1932</bibRefCitation>
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</taxonomicName>
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. Original designation by
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<bibRefCitation id="E974BD9C7113236B6695FF5FFB89FF39" author="Blake, J. A." box="[991,1110,220,244]" pageId="8" pageNumber="9" pagination="1 - 130" refId="ref57500" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537, 1 - 130. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake 2018</bibRefCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C5FF93E67113236B65DDFEA2FD62FDF5" pageId="8" pageNumber="9" type="diagnosis">
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<paragraph id="8D5AC06D7113236B65DDFEA2FD62FDF5" blockId="8.[151,1437,289,2008]" pageId="8" pageNumber="9">
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<emphasis id="BF911C7F7113236B65DDFEA2FED5FEF6" bold="true" box="[151,266,289,315]" pageId="8" pageNumber="9">Diagnosis</emphasis>
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. (after
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<bibRefCitation id="E974BD9C7113236B642AFEA1FE3AFEF1" author="Blake, J. A." box="[352,485,290,316]" pageId="8" pageNumber="9" pagination="1 - 130" refId="ref57500" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537, 1 - 130. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake 2018</bibRefCitation>
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) Prostomium broadly rounded anteriorly or wedge-shaped; eyespots absent; with a pair of small nuchal organs as slits or depressions at posterior edge. Peristomium with a single pair of grooved dorsal tentacles arising from posterior margin or interface with setiger 1. First pair of branchiae arising from posterior margin of peristomium, an achaetous segment, or setiger 1. Body typically thick and fusiform over many segments, rarely with middle or posterior body segments beaded or moniliform; individual segments short, numerous. Setae include capillaries on most setigers and thick, pointed acicular spines in neuropodia and a few in notopodia or spines in neuropodia only; spines few, often small and inconspicuous, not forming cinctures. Individual spines straight to weakly sigmoid. Pygidium a simple ventral lobe.
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</paragraph>
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</subSubSection>
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<subSubSection id="C5FF93E67113236B658DFDC1FAA4F815" pageId="8" pageNumber="9" type="discussion">
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<paragraph id="8D5AC06D7113236B658DFDC1FE01FCF9" blockId="8.[151,1437,289,2008]" pageId="8" pageNumber="9">
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<emphasis id="BF911C7F7113236B658DFDC1FEEBFD91" bold="true" box="[199,308,578,604]" pageId="8" pageNumber="9">Remarks</emphasis>
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. Species of
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<taxonomicName id="4AE5BBEE7113236B648BFDC1FD5FFD91" authorityName="Blake" authorityYear="2018" box="[449,640,578,604]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B648BFDC1FD5FFD91" box="[449,640,578,604]" italics="true" pageId="8" pageNumber="9">Chaetocirratulus</emphasis>
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</taxonomicName>
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include a heterogeneous group of cirratulids that share characteristics of both the multitentaculate genus
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<taxonomicName id="4AE5BBEE7113236B676EFDE5FC92FD4D" authority="Lamarck, 1818" authorityName="Lamarck" authorityYear="1818" box="[548,845,614,640]" class="Polychaeta" family="Cirratulidae" genus="Cirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B676EFDE5FD46FD4D" box="[548,665,614,640]" italics="true" pageId="8" pageNumber="9">Cirratulus</emphasis>
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<bibRefCitation id="E974BD9C7113236B67EBFDE5FC92FD4D" author="Lamarck, J. B. M. de" box="[673,845,614,640]" pageId="8" pageNumber="9" refId="ref60444" refString="Lamarck, J. B. M. de (1818) Histoire naturelle des Animaux sans Vertebres, presentant les caracteres generaux et particuliers de ces animaux, leur distribution, leurs classes, leurs familles, leurs genres, et la citation des principales especes qui s'y rapportent; precedes d'une Introduction offrant la determination des caracteres essentiels de l'Animal, sa distinction du vegetal et desautres corps naturels, enfin, l'Exposition des Principes fondamentaux de la Zoologie. Vol. 5. Deterville. Paris, 612 pp. [http: // biodiversitylibrary. org / page / 12886879]" type="book" year="1818">Lamarck, 1818</bibRefCitation>
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</taxonomicName>
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and the bitentaculate genus
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<taxonomicName id="4AE5BBEE7113236B61D9FDE5FAC8FD4D" authorityName="Malmgren" authorityYear="1867" box="[1171,1303,614,640]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B61D9FDE5FAC8FD4D" box="[1171,1303,614,640]" italics="true" pageId="8" pageNumber="9">Chaetozone</emphasis>
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</taxonomicName>
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. The genus was established by
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<bibRefCitation id="E974BD9C7113236B6424FD09FDDEFD69" author="Blake, J. A." box="[366,513,650,676]" pageId="8" pageNumber="9" pagination="1 - 130" refId="ref57500" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537, 1 - 130. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake (2018)</bibRefCitation>
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to accommodate a group of
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<taxonomicName id="4AE5BBEE7113236B6677FD09FBC7FD69" box="[829,1048,650,676]" pageId="8" pageNumber="9">
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<emphasis id="BF911C7F7113236B6677FD09FC1EFD69" box="[829,961,650,676]" italics="true" pageId="8" pageNumber="9">Chaetozone</emphasis>
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species
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</taxonomicName>
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that had large, often fusiform bodies with only a few acicular spines that were not arranged in spreading fascicles or in the more typical cinctures.
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<bibRefCitation id="E974BD9C7113236B65DDFD51FE96FD21" author="Petersen, M. E." box="[151,329,722,748]" pageId="8" pageNumber="9" pagination="592" refId="ref62020" refString="Petersen, M. E. (1991) A review of asexual reproduction in the Cirratulidae (Annelida: Polychaeta), with redescription of Cirratulus gayheadius (Hartman, 1965), new combination, and emendation or reinstatement of some cirratulid genera. Bulletin of Marine Science, 48, 592. [abstract]" type="journal article" year="1991">Petersen (1991)</bibRefCitation>
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had earlier recognized that these species did not agree with
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<taxonomicName id="4AE5BBEE7113236B66B6FD51FB5FFD21" authorityName="Malmgren" authorityYear="1867" box="[1020,1152,722,748]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B66B6FD51FB5FFD21" box="[1020,1152,722,748]" italics="true" pageId="8" pageNumber="9">Chaetozone</emphasis>
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</taxonomicName>
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and referred them to the multitentaculate genus
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<taxonomicName id="4AE5BBEE7113236B64D1FD75FDCFFCDD" authorityName="Lamarck" authorityYear="1818" box="[411,528,758,784]" class="Polychaeta" family="Cirratulidae" genus="Cirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B64D1FD75FDCFFCDD" box="[411,528,758,784]" italics="true" pageId="8" pageNumber="9">Cirratulus</emphasis>
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</taxonomicName>
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and redefined the genus to include species having two tentacular cirri in addition to multiple pairs of tentacles.
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</paragraph>
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<paragraph id="8D5AC06D7113236B658DFCBDFCEEFC6D" blockId="8.[151,1437,289,2008]" pageId="8" pageNumber="9">
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Two species previously described from the western North Atlantic Ocean considered to possibly belong to
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<taxonomicName id="4AE5BBEE7113236B65DDFCE1FE89FCB1" authorityName="Blake" authorityYear="2018" box="[151,342,866,892]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
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<emphasis id="BF911C7F7113236B65DDFCE1FE89FCB1" box="[151,342,866,892]" italics="true" pageId="8" pageNumber="9">Chaetocirratulus</emphasis>
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</taxonomicName>
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are
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<taxonomicName id="4AE5BBEE7113236B64C6FCE1FC82FCB0" authority="McIntosh, 1885" authorityName="McIntosh" authorityYear="1885" box="[396,861,866,893]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">
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<emphasis id="BF911C7F7113236B64C6FCE1FD7FFCB1" box="[396,672,866,892]" italics="true" pageId="8" pageNumber="9">Chaetozone benthaliana</emphasis>
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<bibRefCitation id="E974BD9C7113236B67E3FCE1FC82FCB0" author="McIntosh, W. C." box="[681,861,866,893]" pageId="8" pageNumber="9" pagination="1 - 554" refId="ref61427" refString="McIntosh, W. C. (1885) Report on the Annelida Polychaeta collected by H. M. S. Challenger during the years 1873 - 76. Challenger Reports, 12, 1 - 554, pls. 1 - 55 + 1 a - 39 a. [https: // www. biodiversitylibrary. org / page / 50688432]" type="journal article" year="1885">McIntosh, 1885</bibRefCitation>
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</taxonomicName>
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from off Nova Scotia in
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<quantity id="4A1D6D887113236B61CFFCE1FB02FCB1" box="[1157,1245,866,893]" metricMagnitude="3" metricUnit="m" metricValue="2.275" pageId="8" pageNumber="9" unit="m" value="2275.0">2275 m</quantity>
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and
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<taxonomicName id="4AE5BBEE7113236B6052FCE1FE64FC6D" authority="Hartman, 1961" authorityName="Hartman" authorityYear="1961" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="gayheadia">
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<emphasis id="BF911C7F7113236B6052FCE1FED3FC6D" italics="true" pageId="8" pageNumber="9">Chaetozone gayheadia</emphasis>
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<bibRefCitation id="E974BD9C7113236B6459FC05FE64FC6D" author="Hartman, O." box="[275,443,902,928]" pageId="8" pageNumber="9" pagination="1 - 226" refId="ref59540" refString="Hartman, O. (1961) Polychaetous annelids from California. Allan Hancock Pacific Expeditions, 25, 1 - 226, 34 pls. [https: // www. biodiversitylibrary. org / page / 5214831]" type="journal article" year="1961">Hartman, 1961</bibRefCitation>
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</taxonomicName>
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from off New
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<collectingCountry id="F5F280FD7113236B6728FC05FD60FC6D" box="[610,703,902,928]" name="United Kingdom" pageId="8" pageNumber="9">England</collectingCountry>
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in
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<specimenCount id="9BE30BE47113236B67A9FC05FCEEFC6D" box="[739,817,902,928]" pageId="8" pageNumber="9" type="generic">
|
||
<quantity id="4A1D6D887113236B67A9FC05FCF2FC6D" box="[739,813,902,928]" metricMagnitude="2" metricUnit="m" metricValue="3.0" pageId="8" pageNumber="9" unit="m" value="300.0">300 m</quantity>
|
||
.
|
||
</specimenCount>
|
||
</paragraph>
|
||
<paragraph id="8D5AC06D7113236B658DFC2AFC6CFB0D" blockId="8.[151,1437,289,2008]" pageId="8" pageNumber="9">
|
||
<emphasis id="BF911C7F7113236B658DFC2AFD4DFC09" bold="true" box="[199,658,937,964]" pageId="8" pageNumber="9">
|
||
Comments on
|
||
<taxonomicName id="4AE5BBEE7113236B6432FC2AFD4DFC09" authorityName="McIntosh" authorityYear="1885" box="[376,658,937,964]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">
|
||
<emphasis id="BF911C7F7113236B6432FC2AFD4DFC09" box="[376,658,937,964]" italics="true" pageId="8" pageNumber="9">Chaetozone benthaliana</emphasis>
|
||
</taxonomicName>
|
||
</emphasis>
|
||
.
|
||
<taxonomicName id="4AE5BBEE7113236B67E9FC29FC69FC09" authorityName="McIntosh" authorityYear="1885" box="[675,950,938,964]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">Chaetozone benthaliana</taxonomicName>
|
||
is an enigma because the
|
||
<typeStatus id="525E7ECF7113236B61ADFC29FA96FC09" box="[1255,1353,938,964]" pageId="8" pageNumber="9" type="holotype">holotype</typeStatus>
|
||
(NHM ZK 1885.12.1.278) is represented only by a large posterior end collected as part of the
|
||
<emphasis id="BF911C7F7113236B6115FC4DFB02FC25" box="[1119,1245,974,1000]" italics="true" pageId="8" pageNumber="9">Challenger</emphasis>
|
||
Expedition from deep-water off
|
||
<collectingRegion id="4F210E8F7113236B640EFC71FE0CFBC1" box="[324,467,1010,1036]" country="Canada" name="Nova Scotia" pageId="8" pageNumber="9">Nova Scotia</collectingRegion>
|
||
. This posterior fragment has been cut into two pieces, the largest of which has 80 setigers and is about
|
||
<quantity id="4A1D6D887113236B6427FB95FE63FBFD" box="[365,444,1046,1072]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="8" pageNumber="9" unit="mm" value="40.0">40 mm</quantity>
|
||
long and up to
|
||
<quantity id="4A1D6D887113236B6724FB95FD70FBFD" box="[622,687,1046,1072]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="8" pageNumber="9" unit="mm" value="7.0">7 mm</quantity>
|
||
wide. Most setae are broken off, but a few straight acicular spines are present in posterior setigers.
|
||
<bibRefCitation id="E974BD9C7113236B674AFBB9FD12FB99" author="Blake, J. A." box="[512,717,1082,1108]" pageId="8" pageNumber="9" pagination="1 - 130" refId="ref57500" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537, 1 - 130. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake (2018: 121)</bibRefCitation>
|
||
, without documentation, referred this taxon to
|
||
<emphasis id="BF911C7F7113236B619CFBB9FA42FB99" box="[1238,1437,1082,1108]" italics="true" pageId="8" pageNumber="9">
|
||
<taxonomicName id="4AE5BBEE7113236B619CFBB9FA46FB99" authorityName="Blake" authorityYear="2018" box="[1238,1433,1082,1108]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">Chaetocirratulus</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
However, given the lack of any anterior morphology, it is not possible to characterize this species to any genus of
|
||
<taxonomicName id="4AE5BBEE7113236B65DDFB01FEC2FB51" authorityName="Ryckholt" authorityYear="1851" box="[151,285,1154,1180]" class="Polychaeta" family="Cirratulidae" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="family">Cirratulidae</taxonomicName>
|
||
based on the type specimen. I suggest, therefore, that
|
||
<taxonomicName id="4AE5BBEE7113236B6633FB01FB4FFB51" authority="McIntosh" authorityName="McIntosh" authorityYear="1885" box="[889,1168,1154,1180]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">
|
||
<emphasis id="BF911C7F7113236B6633FB01FBC0FB51" box="[889,1055,1154,1180]" italics="true" pageId="8" pageNumber="9">C. benthaliana</emphasis>
|
||
McIntosh
|
||
</taxonomicName>
|
||
be considered a
|
||
<emphasis id="BF911C7F7113236B6001FB00FEFAFB0D" italics="true" pageId="8" pageNumber="9">species inquirendum</emphasis>
|
||
and removed from the list of valid species of
|
||
<taxonomicName id="4AE5BBEE7113236B6662FB25FC73FB0D" authorityName="Malmgren" authorityYear="1867" box="[808,940,1190,1216]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
|
||
<emphasis id="BF911C7F7113236B6662FB25FC73FB0D" box="[808,940,1190,1216]" italics="true" pageId="8" pageNumber="9">Chaetozone</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8D5AC06D7113236B658DFB49FCF5F885" blockId="8.[151,1437,289,2008]" pageId="8" pageNumber="9">
|
||
<bibRefCitation id="E974BD9C7113236B658DFB49FE48FB29" author="Kirkegaard, J. B." box="[199,407,1226,1252]" pageId="8" pageNumber="9" pagination="593 - 608" refId="ref60280" refString="Kirkegaard, J. B. (1983) Bathyal benthic polychaetes from the N. E. Atlantic Ocean, S. W. of the British Isles. Journal of the Biological Association of the United Kingdom, 63, 593 - 608. https: // doi. org / 10.1017 / S 0025315400070909" type="journal article" year="1983">Kirkegaard (1983)</bibRefCitation>
|
||
referred a specimen from deep-water (
|
||
<quantity id="4A1D6D887113236B6607FB49FC7AFB29" box="[845,933,1226,1252]" metricMagnitude="3" metricUnit="m" metricValue="1.9" pageId="8" pageNumber="9" unit="m" value="1900.0">1900 m</quantity>
|
||
) from the northeastern Atlantic southwest of
|
||
<collectingCountry id="F5F280FD7113236B65DDFB6DFF39FAC5" box="[151,230,1262,1288]" name="Ireland" pageId="8" pageNumber="9">Ireland</collectingCountry>
|
||
to
|
||
<taxonomicName id="4AE5BBEE7113236B6440FB6DFE6EFAC5" authorityName="McIntosh" authorityYear="1885" box="[266,433,1262,1288]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">
|
||
<emphasis id="BF911C7F7113236B6440FB6DFE6EFAC5" box="[266,433,1262,1288]" italics="true" pageId="8" pageNumber="9">C. benthaliana</emphasis>
|
||
</taxonomicName>
|
||
and provided an illustrated description, but few details were provided and no explanation as to why he thought his specimen was the same species as the posterior end of
|
||
<taxonomicName id="4AE5BBEE7113236B6155FA91FB19FAE1" authorityName="McIntosh" authorityYear="1885" box="[1055,1222,1298,1324]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">
|
||
<emphasis id="BF911C7F7113236B6155FA91FB19FAE1" box="[1055,1222,1298,1324]" italics="true" pageId="8" pageNumber="9">C. benthaliana</emphasis>
|
||
</taxonomicName>
|
||
reported by
|
||
<bibRefCitation id="E974BD9C7113236B601CFA91FEC8FA9C" author="McIntosh, W. C." pageId="8" pageNumber="9" pagination="1 - 554" refId="ref61427" refString="McIntosh, W. C. (1885) Report on the Annelida Polychaeta collected by H. M. S. Challenger during the years 1873 - 76. Challenger Reports, 12, 1 - 554, pls. 1 - 55 + 1 a - 39 a. [https: // www. biodiversitylibrary. org / page / 50688432]" type="journal article" year="1885">McIntosh (1885)</bibRefCitation>
|
||
from off
|
||
<collectingCountry id="F5F280FD7113236B64C8FAB5FE05FA9D" box="[386,474,1334,1360]" name="Canada" pageId="8" pageNumber="9">Canada</collectingCountry>
|
||
. As part of a series of unpublished notes and sketches prepared by the late Dr. Mary E. Petersen and now in my possession are details of her observations on the specimen reported by
|
||
<bibRefCitation id="E974BD9C7113236B618CFAD9FA46FAB9" author="Kirkegaard, J. B." box="[1222,1433,1370,1396]" pageId="8" pageNumber="9" pagination="593 - 608" refId="ref60280" refString="Kirkegaard, J. B. (1983) Bathyal benthic polychaetes from the N. E. Atlantic Ocean, S. W. of the British Isles. Journal of the Biological Association of the United Kingdom, 63, 593 - 608. https: // doi. org / 10.1017 / S 0025315400070909" type="journal article" year="1983">Kirkegaard (1983)</bibRefCitation>
|
||
. These notes were present in documents recovered from Dr. Petersen’s laboratory following her death in 2014. Dr. Petersen noted that the specimen was widest in the middle of the body, narrowing at both anterior and posterior ends and having ca. 100 setigers,
|
||
<quantity id="4A1D6D887113236B6494FA45FDF0FA2D" box="[478,559,1478,1504]" metricMagnitude="-2" metricUnit="m" metricValue="3.6" pageId="8" pageNumber="9" unit="mm" value="36.0">36 mm</quantity>
|
||
long and
|
||
<quantity id="4A1D6D887113236B67E9FA45FD39FA2D" box="[675,742,1478,1505]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="8" pageNumber="9" unit="mm" value="5.0">5 mm</quantity>
|
||
wide. She noted that the prostomium was broadly triangular and wedge-shaped, but had a mid-dorsal notch or depression. The nature of the peristomium was not noted, but her sketches indicate that two peristomial rings were present, the anteriormost being large with a pair of lateral creases, not crossing the dorsal or ventral surfaces. The dorsal tentacles were missing but their scars were present in a notch on the anterior border of setiger 1; most branchiae were missing, but the scars of the first pair of branchiae were visible on setiger 1 dorsal to the notosetae. Parapodia were well developed with ridges apparent along most of the body. Most of the setae were broken off, but smooth capillaries and a few acicular spines, when present, were straight, not curved; their first occurrence could not be determined, however one or two spines were present in both noto- and neuropodia from setiger 91. The notes and detailed sketches prepared by Dr. Petersen of the NE Atlantic specimen suggest a species that differs from any specimens of
|
||
<taxonomicName id="4AE5BBEE7113236B67AEF889FC7CF8E9" authorityName="Blake" authorityYear="2018" box="[740,931,1802,1828]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="genus">
|
||
<emphasis id="BF911C7F7113236B67AEF889FC7CF8E9" box="[740,931,1802,1828]" italics="true" pageId="8" pageNumber="9">Chaetocirratulus</emphasis>
|
||
</taxonomicName>
|
||
observed along the
|
||
<collectingCountry id="F5F280FD7113236B61CFF889FB69F8E9" box="[1157,1206,1802,1828]" name="United States of America" pageId="8" pageNumber="9">U.S.</collectingCountry>
|
||
Atlantic coast in the present study and likely represents an undescribed species.
|
||
</paragraph>
|
||
<paragraph id="8D5AC06D7113236B658DF8D1FAA4F815" blockId="8.[151,1437,289,2008]" pageId="8" pageNumber="9">
|
||
Unlike
|
||
<taxonomicName id="4AE5BBEE7113236B6453F8D1FE60F8A1" authorityName="McIntosh" authorityYear="1885" box="[281,447,1874,1900]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="benthaliana">
|
||
<emphasis id="BF911C7F7113236B6453F8D1FE60F8A1" box="[281,447,1874,1900]" italics="true" pageId="8" pageNumber="9">C. benthaliana</emphasis>
|
||
</taxonomicName>
|
||
, where only a posterior fragment is available, numerous specimens of
|
||
<taxonomicName id="4AE5BBEE7113236B6186F8D1FABFF8A1" authorityName="Hartman" authorityYear="1961" box="[1228,1376,1874,1900]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="gayheadia">
|
||
<emphasis id="BF911C7F7113236B6186F8D1FABFF8A1" box="[1228,1376,1874,1900]" italics="true" pageId="8" pageNumber="9">C. gayheadia</emphasis>
|
||
</taxonomicName>
|
||
were available for study including postlarvae, juveniles, and mature adults. Detailed observations on these specimens are presented below. In addition, representatives of three additional species, new to science, were encountered. In the present study, the following species have been identified off the
|
||
<collectingCountry id="F5F280FD7113236B662DF83DFC46F815" box="[871,921,1982,2008]" name="United States of America" pageId="8" pageNumber="9">U.S.</collectingCountry>
|
||
Atlantic coast and are treated in this study.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C5FF93E67112236A65DDFF14FD98FED0" pageId="9" pageNumber="10" type="synonymic_list">
|
||
<paragraph id="8D5AC06D7112236A65DDFF14FCE3FF7C" blockId="9.[151,828,150,285]" box="[151,828,150,177]" pageId="9" pageNumber="10">
|
||
<heading id="D61277017112236A65DDFF14FCE3FF7C" box="[151,828,150,177]" fontSize="11" level="2" pageId="9" pageNumber="10" reason="5">
|
||
<emphasis id="BF911C7F7112236A65DDFF14FF73FF7C" box="[151,172,151,177]" italics="true" pageId="9" pageNumber="10">1.</emphasis>
|
||
<taxonomicName id="4AE5BBEE7112236A658DFF14FD10FF7C" authority="(Hartman, 1965)" authorityName="Blake" authorityYear="2022" baseAuthorityName="Hartman" baseAuthorityYear="1965" box="[199,719,150,177]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="10" phylum="Annelida" rank="species" species="gayheadius" status="comb. nov.">
|
||
<emphasis id="BF911C7F7112236A658DFF14FDD1FF7C" box="[199,526,151,177]" italics="true" pageId="9" pageNumber="10">Chaetocirratulus gayheadius</emphasis>
|
||
(
|
||
<bibRefCitation id="E974BD9C7112236A6756FF14FD19FF7C" author="Hartman, O." box="[540,710,150,177]" pageId="9" pageNumber="10" pagination="1 - 378" refId="ref59580" refString="Hartman, O. (1965) Deep-water benthic polychaetous annelids off New England to Bermuda and other North Atlantic areas. Allan Hancock Foundation Occasional Paper, 28, 1 - 378. [http: // digitallibrary. usc. edu / digital / collection / p 15799 coll 82 / id / 20299]" type="journal article" year="1965">Hartman, 1965</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A4A2A1047112236A679CFF14FCE3FF7C" box="[726,828,151,177]" pageId="9" pageNumber="10" rank="species">
|
||
<emphasis id="BF911C7F7112236A679CFF14FCEBFF7C" bold="true" box="[726,820,151,177]" pageId="9" pageNumber="10">n. comb</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8D5AC06D7112236A65DDFF38FDF4FF18" blockId="9.[151,828,150,285]" box="[151,555,187,213]" pageId="9" pageNumber="10">
|
||
<emphasis id="BF911C7F7112236A65DDFF38FE3AFF18" box="[151,485,187,213]" italics="true" pageId="9" pageNumber="10">
|
||
2.
|
||
<taxonomicName id="4AE5BBEE7112236A658DFF38FE3AFF18" authority="Blake, 2022" authorityName="Blake" authorityYear="2022" box="[199,485,187,213]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="10" phylum="Annelida" rank="species" species="hessleri" status="sp. nov.">Chaetocirratulus hessleri</taxonomicName>
|
||
</emphasis>
|
||
<taxonomicNameLabel id="A4A2A1047112236A64A6FF38FDF4FF18" box="[492,555,187,213]" pageId="9" pageNumber="10" rank="species">
|
||
<emphasis id="BF911C7F7112236A64A6FF38FDFCFF18" bold="true" box="[492,547,187,213]" pageId="9" pageNumber="10">n. sp</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
</paragraph>
|
||
<paragraph id="8D5AC06D7112236A65DDFF5CFDEDFF34" blockId="9.[151,828,150,285]" box="[151,562,223,249]" pageId="9" pageNumber="10">
|
||
<emphasis id="BF911C7F7112236A65DDFF5CFE32FF34" box="[151,493,223,249]" italics="true" pageId="9" pageNumber="10">
|
||
3.
|
||
<taxonomicName id="4AE5BBEE7112236A658DFF5CFE32FF34" authority="Blake, 2022" authorityName="Blake" authorityYear="2022" box="[199,493,223,249]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="10" phylum="Annelida" rank="species" species="sandersi" status="sp. nov.">Chaetocirratulus sandersi</taxonomicName>
|
||
</emphasis>
|
||
<taxonomicNameLabel id="A4A2A1047112236A64B9FF5CFDEDFF34" box="[499,562,223,249]" pageId="9" pageNumber="10" rank="species">
|
||
<emphasis id="BF911C7F7112236A64B9FF5CFDF4FF34" bold="true" box="[499,555,223,249]" pageId="9" pageNumber="10">n. sp</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
</paragraph>
|
||
<paragraph id="8D5AC06D7112236A65DDFE80FD98FED0" blockId="9.[151,828,150,285]" box="[151,583,259,285]" pageId="9" pageNumber="10">
|
||
<emphasis id="BF911C7F7112236A65DDFE80FDDEFED0" box="[151,513,259,285]" italics="true" pageId="9" pageNumber="10">
|
||
4.
|
||
<taxonomicName id="4AE5BBEE7112236A658DFE80FDDEFED0" authority="Blake, 2022" authorityName="Blake" authorityYear="2022" box="[199,513,259,285]" class="Polychaeta" family="Cirratulidae" genus="Chaetocirratulus" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="10" phylum="Annelida" rank="species" species="tomaculus" status="sp. nov.">Chaetocirratulus tomaculus</taxonomicName>
|
||
</emphasis>
|
||
<taxonomicNameLabel id="A4A2A1047112236A6742FE80FD98FED0" box="[520,583,259,285]" pageId="9" pageNumber="10" rank="species">
|
||
<emphasis id="BF911C7F7112236A6742FE80FDE0FED0" bold="true" box="[520,575,259,285]" pageId="9" pageNumber="10">n. sp</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |