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<document id="3A4E3FFEACE0910B796332780D465FB4" ID-CLB-Dataset="112028" ID-DOI="10.11646/zootaxa.5113.1.1" ID-GBIF-Dataset="8b4b0886-ef22-452d-8be4-31089686eeb2" ID-ISSN="1175-5326" ID-Zenodo-Dep="6340998" ID-ZooBank="EB01C862-025E-493F-8CA9-934B4F1626AF" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1646828482616" checkinUser="plazi" docAuthor="Blake, James A." docDate="2022" docId="054C717B715D232565DDFF14FB66F963" docLanguage="en" docName="zootaxa.5113.1.1.pdf" docOrigin="Zootaxa 5113 (1)" docSource="http://zoobank.org/eb01c862-025e-493f-8ca9-934b4f1626af" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Chaetozone hystricosa Doner &amp; Blake 2006" docType="treatment" docVersion="8" lastPageNumber="71" masterDocId="F9750903711B2363654AFF83FFDFFFCD" masterDocTitle="New species and records of Caulleriella, Chaetocirratulus and Chaetozone (Annelida, Cirratulidae) from continental shelf and slope depths of the Western North Atlantic Ocean" masterLastPageNumber="89" masterPageNumber="1" pageNumber="71" updateTime="1699317617551" updateUser="ExternalLinkService">
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<mods:title id="ABD2188E5BE6F55414FACF28F50251DD">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:title id="8E72C3B218632F123BF63B88A79B141C">Zootaxa</mods:title>
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<mods:date id="254D3924CC829C7CFC4E7331F6727B8C">2022</mods:date>
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<treatment id="054C717B715D232565DDFF14FB66F963" ID-DOI="http://doi.org/10.5281/zenodo.6343009" ID-GBIF-Taxon="198574491" ID-Zenodo-Dep="6343009" LSID="urn:lsid:plazi:treatment:054C717B715D232565DDFF14FB66F963" httpUri="http://treatment.plazi.org/id/054C717B715D232565DDFF14FB66F963" lastPageNumber="71" pageId="70" pageNumber="71">
<subSubSection id="C5FF93E6715D232565DDFF14FD6BFF7C" box="[151,692,151,178]" pageId="70" pageNumber="71" type="nomenclature">
<paragraph id="8D5AC06D715D232565DDFF14FD6BFF7C" blockId="70.[151,692,151,213]" box="[151,692,151,178]" pageId="70" pageNumber="71">
<heading id="D6127701715D232565DDFF14FD6BFF7C" bold="true" box="[151,692,151,178]" fontSize="11" level="2" pageId="70" pageNumber="71" reason="4">
<taxonomicName id="4AE5BBEE715D232565DDFF14FD6BFF7C" ID-CoL="TF23" authority="Doner &amp; Blake, 2006" authorityName="Doner &amp; Blake" authorityYear="2006" box="[151,692,151,178]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="hystricosa">
<emphasis id="BF911C7F715D232565DDFF14FD6BFF7C" bold="true" box="[151,692,151,178]" pageId="70" pageNumber="71">
<emphasis id="BF911C7F715D232565DDFF14FE79FF7F" bold="true" box="[151,422,151,178]" italics="true" pageId="70" pageNumber="71">Chaetozone hystricosa</emphasis>
<bibRefCitation id="E974BD9C715D232564E4FF14FD6BFF7C" author="Doner, S. A. &amp; Blake, J. A." box="[430,692,151,177]" pageId="70" pageNumber="71" pagination="65 - 73" refId="ref59015" refString="Doner, S. A. &amp; Blake, J. A. (2006) New species of Cirratulidae (Polychaeta) from the northeastern United States. Scientia Marina, 70 (Supplement 3), 65 - 73. https: // doi. org / 10.3989 / SCIMAR. 2006.70 s 365" type="journal article" year="2006">Doner &amp; Blake, 2006</bibRefCitation>
</emphasis>
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<subSubSection id="C5FF93E6715D232565DDFF38FEDCFF18" box="[151,259,187,213]" pageId="70" pageNumber="71" type="description">
<paragraph id="8D5AC06D715D232565DDFF38FEDCFF18" blockId="70.[151,692,151,213]" box="[151,259,187,213]" pageId="70" pageNumber="71">
<figureCitation id="15DEDCE8715D232565DDFF38FEDCFF18" box="[151,259,187,213]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Figure 36</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C5FF93E6715D232565DDFE83FD64FE98" pageId="70" pageNumber="71" type="reference_group">
<paragraph id="8D5AC06D715D232565DDFE83FC54FEDA" blockId="70.[151,907,255,341]" box="[151,907,255,280]" pageId="70" pageNumber="71">
<taxonomicName id="4AE5BBEE715D232565DDFE83FDC6FED5" ID-CoL="TF2R" authority="Blake et al. 1998 b" authorityName="Blake" authorityYear="1998" box="[151,537,256,280]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="setosa">
<emphasis id="BF911C7F715D232565DDFE83FE8BFEDA" box="[151,340,256,280]" italics="true" pageId="70" pageNumber="71">Chaetozone setosa</emphasis>
<bibRefCitation id="E974BD9C715D23256411FE83FDC6FED5" author="Blake, J. A. &amp; Williams, I. P. &amp; Gallagher, E. D. &amp; Hecker, B. &amp; Rhoads, D. C. &amp; Arnofsky, P. L." box="[347,537,256,280]" pageId="70" pageNumber="71" refId="ref58355" refString="Blake, J. A., Williams, I. P., Gallagher, E. D., Hecker, B., Rhoads, D. C. &amp; Arnofsky, P. L. (1998 b) Massachusetts Bay outfall monitoring program: benthic biology and sedimentology baseline monitoring for 1997 and retrospective analysis of the 1992 - 1997 database. Boston: Massachusetts Water Resources Authority. Report ENQUAD 98 - 16. xi + 221 pp. Available from: https: // www. mwra. com / harbor / enquad / pdf / 1998 - 16. pdf (accessed 15 April 2021)" type="book" year="1998">
Blake
<emphasis id="BF911C7F715D232564D6FE83FE16FED5" box="[412,457,256,280]" italics="true" pageId="70" pageNumber="71">et al</emphasis>
. 1998b
</bibRefCitation>
</taxonomicName>
: C-1 (in part).
<emphasis id="BF911C7F715D232567E7FE83FD0BFED5" bold="true" box="[685,724,256,280]" pageId="70" pageNumber="71">Not</emphasis>
<bibRefCitation id="E974BD9C715D23256791FE83FC58FEDA" author="Malmgren, A. J." box="[731,903,255,280]" pageId="70" pageNumber="71" pagination="127 - 235" refId="ref61699" refString="Malmgren, A. J. (1867) Annulata Polychaeta Spetsbergiae, Groenlandiae, Islandiae et Scandinaviae hactenus cognita. Ofversigt af Kongliga Vetenskaps-Akademien Forhandlingar, 24, 127 - 235. https: // doi. org / 10.5962 / bhl. title. 13358" type="journal article" year="1867">Malmgren, 1867</bibRefCitation>
.
</paragraph>
<paragraph id="8D5AC06D715D232565DDFE9DFC97FEFB" blockId="70.[151,907,255,341]" box="[151,840,286,310]" pageId="70" pageNumber="71">
<treatmentCitationGroup id="ADF5E743715D232565DDFE9DFC97FEFB" box="[151,840,286,310]" pageId="70" pageNumber="71">
<treatmentCitation id="0C44E67C715D232565DDFE9DFD68FEFB" author="Doner, S. A. &amp; Blake, J. A." box="[151,695,286,310]" page="71" pageId="70" pageNumber="71" year="2006">
<taxonomicName id="4AE5BBEE715D232565DDFE9DFD68FEFB" ID-CoL="TF24" authority="Doner &amp; Blake, 2006: 69 - 71" authorityName="Doner &amp; Blake" authorityPageNumber="69 - 71" authorityYear="2006" box="[151,695,286,310]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="hystricosus">
<emphasis id="BF911C7F715D232565DDFE9DFE58FEFB" box="[151,391,286,310]" italics="true" pageId="70" pageNumber="71">Chaetozone hystricosus</emphasis>
<bibRefCitation id="E974BD9C715D232564C7FE9CFD68FEFB" author="Doner, S. A. &amp; Blake, J. A." box="[397,695,286,310]" pageId="70" pageNumber="71" pagination="65 - 73" refId="ref59015" refString="Doner, S. A. &amp; Blake, J. A. (2006) New species of Cirratulidae (Polychaeta) from the northeastern United States. Scientia Marina, 70 (Supplement 3), 65 - 73. https: // doi. org / 10.3989 / SCIMAR. 2006.70 s 365" type="journal article" year="2006">Doner &amp; Blake, 2006: 69–71</bibRefCitation>
</taxonomicName>
</treatmentCitation>
,
<figureCitation id="15DEDCE8715D2325678BFE9DFD22FEFB" box="[705,765,286,310]" captionStart="FIGURE 3" captionStartId="11.[151,250,1810,1834]" captionTargetBox="[151,1436,181,1787]" captionTargetId="figure-15@11.[151,1436,181,1787]" captionTargetPageId="11" captionText="FIGURE 3. Chaetocirratulus gayheadius. Holotype (LACM AHF-Poly 0564): A, anterior end, ventral view; B, anterior end, dorsal view; C, posterior end, dorsolateral view. Paratypes (LACM AHF-Poly 0565): D, 8-setiger post-larva, left lateral view; E, 7-setiger post-larva, right lateral view. B–C, E, dark spots denote MG stain; D, stippled areas denote MG stain." figureDoi="http://doi.org/10.5281/zenodo.6341006" httpUri="https://zenodo.org/record/6341006/files/figure.png" pageId="70" pageNumber="71">Fig. 3</figureCitation>
,
<figureCitation id="15DEDCE8715D23256643FE9DFC9CFEFB" box="[777,835,286,310]" captionStart="FIGURE 5" captionStartId="13.[151,250,1904,1928]" captionTargetBox="[202,1386,181,1880]" captionTargetId="figure-15@13.[202,1386,181,1880]" captionTargetPageId="13" captionText="FIGURE 5. Chaetocirratulus gayheadius. Juveniles from Sta. Ch 105-B, (LACM AHF-Poly 12721): A, 19-setiger juvenile, right lateral view; B, 28-setiger juvenile, right lateral view; C, 31-setiger juvenile, left lateral view; D, 34-setiger juvenile, right lateral view; E, 17-setiger juvenile, right lateral view; F, 27-setiger juvenile, left lateral view; G, 29-setiger juvenile, ventral view; H, neuropodial acicular spines and capillaries; I, detail of acicular spine. All stained with Shirlastain A." figureDoi="http://doi.org/10.5281/zenodo.6341014" httpUri="https://zenodo.org/record/6341014/files/figure.png" pageId="70" pageNumber="71">5A, F</figureCitation>
.
</treatmentCitationGroup>
</paragraph>
<paragraph id="8D5AC06D715D232565DDFEBEFD64FE98" blockId="70.[151,907,255,341]" box="[151,699,317,341]" pageId="70" pageNumber="71">
<taxonomicName id="4AE5BBEE715D232565DDFEBEFD68FE98" ID-CoL="TF23" authority=": Blake &amp; Levesque 2017: 573" authorityName=": Blake &amp; Levesque" authorityPageNumber="573" authorityYear="2017" box="[151,695,317,341]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="hystricosa">
<emphasis id="BF911C7F715D232565DDFEBEFEA2FE98" box="[151,381,317,341]" italics="true" pageId="70" pageNumber="71">Chaetozone hystricosa</emphasis>
: Blake &amp; Levesque 2017: 573
</taxonomicName>
.
</paragraph>
</subSubSection>
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<emphasis id="BF911C7F715D232565DDFE00FEA3FE50" bold="true" box="[151,380,387,413]" pageId="70" pageNumber="71">Material examined</emphasis>
. (
<emphasis id="BF911C7F715D232564DFFE00FDFFFE50" box="[405,544,387,413]" italics="true" pageId="70" pageNumber="71">
<specimenCount id="9BE30BE4715D232564DFFE00FDFFFE50" box="[405,544,387,413]" pageId="70" pageNumber="71" type="generic">8 specimens</specimenCount>
</emphasis>
)
<materialsCitation id="3D8DCA30715D23256778FE00FAA5FE0F" ID-GBIF-Occurrence="3878838620" collectingDate="2009-08-05" collectionCode="MCZ" collectorName="Harbor &amp; Outfall Monitoring Program" country="United States of America" latitude="42.33967" location="United States" longLatPrecision="11" longitude="-70.96066" pageId="70" pageNumber="71" specimenCode="MCZ 161948" specimenCount="1">
<emphasis id="BF911C7F715D23256778FE00FE44FE0C" bold="true" pageId="70" pageNumber="71">
Northeastern
<collectingCountry id="F5F280FD715D23256790FE00FCA1FE50" box="[730,894,387,413]" name="United States of America" pageId="70" pageNumber="71">United States</collectingCountry>
, MWRA
<collectorName id="2010A5BB715D232566B9FE00FB92FE50" box="[1011,1101,387,413]" pageId="70" pageNumber="71">Harbor</collectorName>
&amp;
<collectorName id="2010A5BB715D2325613DFE00FF04FE0C" pageId="70" pageNumber="71">Outfall Monitoring Program</collectorName>
: Boston Harbor
</emphasis>
,
<emphasis id="BF911C7F715D232564E0FE24FDF7FE0C" bold="true" box="[426,552,423,449]" pageId="70" pageNumber="71">Sta. T-05A</emphasis>
: Rep. 2,
<date id="F95BE6AD715D232567C5FE24FCF5FE0C" box="[655,810,423,450]" pageId="70" pageNumber="71" value="2009-08-05">
<collectingDate id="E91F1F45715D232567C5FE24FCF5FE0C" box="[655,810,423,450]" pageId="70" pageNumber="71" value="2009-08-05">05 Aug. 2009</collectingDate>
</date>
,
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,
<geoCoordinate id="E8D1A6AA715D2325668DFE24FB8DFE0F" box="[967,1106,423,450]" degrees="70" direction="west" minutes="57.64" orientation="longitude" pageId="70" pageNumber="71" precision="9" value="-70.96066">70°57.64’W</geoCoordinate>
, 17.5 m (2,
<specimenCode id="DD436816715D23256192FE24FAACFE0F" box="[1240,1395,423,450]" collectionCode="MCZ" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:33791" lsid="urn:lsid:biocol.org:col:33791" name="Museum of Comparative Zoology" pageId="70" pageNumber="71" type="Museum">MCZ 161948</specimenCode>
)
</materialsCitation>
.—
<materialsCitation id="3D8DCA30715D232565DDFE48FED9FDC7" ID-GBIF-Occurrence="3878838712" collectingDate="1997-08" collectionCode="MCZ" country="United States of America" elevation="87" latitude="42.288334" location="Survey" longLatPrecision="11" longitude="-70.425" municipality="Bay" pageId="70" pageNumber="71" specimenCode="MCZ 1619490" specimenCount="1" stateProvince="Massachusetts">
<emphasis id="BF911C7F715D232565DDFE48FEA6FE28" bold="true" box="[151,377,459,485]" pageId="70" pageNumber="71">
<collectingRegion id="4F210E8F715D232565DDFE48FE9BFE28" box="[151,324,459,485]" country="United States of America" name="Massachusetts" pageId="70" pageNumber="71">Massachusetts</collectingRegion>
<collectingMunicipality id="6D3E5A17715D23256400FE48FEA6FE28" box="[330,377,459,485]" pageId="70" pageNumber="71">Bay</collectingMunicipality>
</emphasis>
,
<emphasis id="BF911C7F715D232564CDFE48FDABFE28" bold="true" box="[391,628,459,485]" pageId="70" pageNumber="71">
<date id="F95BE6AD715D232564CDFE48FDC5FE28" box="[391,538,459,485]" pageId="70" pageNumber="71" value="1997-08">
<collectingDate id="E91F1F45715D232564CDFE48FDC5FE28" box="[391,538,459,485]" pageId="70" pageNumber="71" value="1997-08">1997 August</collectingDate>
</date>
<location id="883A96B6715D2325676AFE48FDABFE28" LSID="urn:lsid:plazi:treatment:054C717B715D232565DDFF14FB66F963:883A96B6715D2325676AFE48FDABFE28" box="[544,628,459,485]" country="United States of America" latitude="42.288334" longLatPrecision="11" longitude="-70.425" municipality="Bay" name="Survey" pageId="70" pageNumber="71" stateProvince="Massachusetts">Survey</location>
</emphasis>
,
<emphasis id="BF911C7F715D232567CBFE48FD21FE28" bold="true" box="[641,766,459,485]" pageId="70" pageNumber="71">Sta. FF-04</emphasis>
, Rep. 1,
<date id="F95BE6AD715D2325662AFE48FC0EFE28" box="[864,977,459,485]" pageId="70" pageNumber="71" value="1997-08">
<collectingDate id="E91F1F45715D2325662AFE48FC0EFE28" box="[864,977,459,485]" pageId="70" pageNumber="71" value="1997-08">Aug 1997</collectingDate>
</date>
,
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,
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,
<quantity id="4A1D6D88715D232561B6FE48FAEBFE2B" box="[1276,1332,459,486]" metricMagnitude="1" metricUnit="m" metricValue="8.7" pageId="70" pageNumber="71" unit="m" value="87.0">
<elevation id="06C8275E715D232561B6FE48FAEBFE2B" box="[1276,1332,459,486]" metricMagnitude="1" metricUnit="m" metricValue="8.7" pageId="70" pageNumber="71" unit="m" value="87.0">87 m</elevation>
</quantity>
(3,
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)
</materialsCitation>
;
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<emphasis id="BF911C7F715D2325645EFE6CFE4CFDC4" bold="true" box="[276,403,495,521]" pageId="70" pageNumber="71">Sta. FF-04</emphasis>
: Rep. 2,
<date id="F95BE6AD715D2325674AFE6CFD7FFDC4" box="[512,672,495,521]" pageId="70" pageNumber="71" value="2002-08-14">
<collectingDate id="E91F1F45715D2325674AFE6CFD7FFDC4" box="[512,672,495,521]" pageId="70" pageNumber="71" value="2002-08-14">14 Aug. 2002</collectingDate>
</date>
,
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,
<geoCoordinate id="E8D1A6AA715D23256675FE72FC1AFDC1" box="[831,965,497,524]" degrees="70" direction="west" minutes="25.50" orientation="longitude" pageId="70" pageNumber="71" precision="9" value="-70.425">70°25.50′W</geoCoordinate>
,
<quantity id="4A1D6D88715D2325669EFE6CFBCEFDC7" box="[980,1041,495,522]" metricMagnitude="1" metricUnit="m" metricValue="9.0" pageId="70" pageNumber="71" unit="m" value="90.0">
<elevation id="06C8275E715D2325669EFE6CFBCEFDC7" box="[980,1041,495,522]" metricMagnitude="1" metricUnit="m" metricValue="9.0" pageId="70" pageNumber="71" unit="m" value="90.0">90 m</elevation>
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,
<specimenCount id="9BE30BE4715D23256155FE6CFB73FDC4" box="[1055,1196,495,521]" pageId="70" pageNumber="71" type="generic">3 specimens</specimenCount>
on SEM stub (
<specimenCode id="DD436816715D23256014FE6CFF2FFDE3" collectionCode="MCZ" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:33791" lsid="urn:lsid:biocol.org:col:33791" name="Museum of Comparative Zoology" pageId="70" pageNumber="71" type="Museum">MCZ 161950</specimenCode>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C5FF93E6715D2325658DFDB4FD86FA8B" pageId="70" pageNumber="71" type="description">
<paragraph id="8D5AC06D715D2325658DFDB4FD76FD70" blockId="70.[151,1437,387,1710]" pageId="70" pageNumber="71">
<emphasis id="BF911C7F715D2325658DFDB4FE8EFD9C" bold="true" box="[199,337,567,593]" pageId="70" pageNumber="71">Description</emphasis>
. A moderately sized species, adults with 70–80 setigers,
<quantity id="4A1D6D88715D2325669FFDB4FB9EFD9F" box="[981,1089,567,594]" metricMagnitude="-2" metricUnit="m" metricValue="1.2" metricValueMax="1.5" metricValueMin="0.9" pageId="70" pageNumber="71" unit="mm" value="12.0" valueMax="15.0" valueMin="9.0">9–15 mm</quantity>
long and up to 0.45 mm wide. Body long, dorsum rounded, venter flattened with mid-ventral groove (
<figureCitation id="15DEDCE8715D23256689FDD8FBF3FDBB" box="[963,1068,603,630]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36A</figureCitation>
); body segments generally short and crowded anteriorly and less so in posterior cinctured setigers bearing numerous acicular spines. Color in alcohol light tan, lacking any distinctive body pigment.
</paragraph>
<paragraph id="8D5AC06D715D2325658DFD44FD9BFC77" blockId="70.[151,1437,387,1710]" pageId="70" pageNumber="71">
Pre-setiger region long, narrow, smooth, about as long as first seven setigers (
<figureCitation id="15DEDCE8715D23256161FD44FB4CFD2F" box="[1067,1171,711,738]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36A</figureCitation>
). Prostomium elongate, pointed anteriorly (
<figureCitation id="15DEDCE8715D23256426FD68FE2BFCCB" box="[364,500,747,774]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36A–B</figureCitation>
); eyespots absent; ciliated oval nuchal organs present on posterior lateral border with peristomium just anterior to oral opening (
<figureCitation id="15DEDCE8715D23256737FC8CFD3AFCE4" box="[637,741,783,809]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36B</figureCitation>
, inset). Peristomium smooth, lacking any grooves or annular rings, merging seamlessly with prostomium anteriorly and setiger 1 posteriorly (
<figureCitation id="15DEDCE8715D2325616CFCB0FB6FFC83" box="[1062,1200,819,846]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36A–B</figureCitation>
); dorsal surface with elongate dorsal crest (
<figureCitation id="15DEDCE8715D232564DBFCD4FE26FCBF" box="[401,505,855,882]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36B</figureCitation>
); dorsal tentacles arise anterior to setiger 1 with first pair of branchiae lateral and posterior to tentacles (
<figureCitation id="15DEDCE8715D232564C4FCF8FDC8FC5B" box="[398,535,891,918]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36A–B</figureCitation>
). Second pair of branchiae dorsal to notosetae on setiger 1; subsequent branchiae arise in similar position (
<figureCitation id="15DEDCE8715D232564E4FC1CFDE7FC77" box="[430,568,927,954]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36A–B</figureCitation>
).
</paragraph>
<paragraph id="8D5AC06D715D2325658DFC40FDDFFB33" blockId="70.[151,1437,387,1710]" pageId="70" pageNumber="71">
Anterior parapodia low rounded lobes from which setae emerge; noto- and neurosetae from setiger 1 all capillaries, 7–10 per fascicle in notopodia and
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neuropodia; capillaries of anterior setigers with fringe of fibrils along one edge (
<figureCitation id="15DEDCE8715D23256404FB88FE69FBEB" box="[334,438,1035,1062]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36G</figureCitation>
). Long, thin natatory-like capillaries present along body, not associated with sexual maturity (
<figureCitation id="15DEDCE8715D23256586FBACFE8DFB87" box="[204,338,1071,1098]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36C–E</figureCitation>
). Acicular spines from about setiger
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neuropodia and setiger
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notopodia. Posterior cinctured segments with deep intersegmental furrows separating highly elevated membranous podial lobes from which spines and capillaries emerge (
<figureCitation id="15DEDCE8715D23256700FBF4FD0BFB5F" box="[586,724,1143,1170]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36D–F</figureCitation>
). In most posterior cinctured setigers, acicular spines 6–7 per fascicle in noto- and neuropodia with 12–14 spines on a side, with narrow dorsal and ventral gaps between fascicles (
<figureCitation id="15DEDCE8715D232565EAFB3CFEF6FB17" box="[160,297,1215,1242]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36D–E</figureCitation>
); spines accompanied by alternating, long, thin capillaries (
<figureCitation id="15DEDCE8715D23256685FB3CFBE6FB17" box="[975,1081,1215,1242]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36H</figureCitation>
); acicular spines curved, thickened, with blunt tips (
<figureCitation id="15DEDCE8715D232564C1FB60FE2BFB33" box="[395,500,1251,1278]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36H</figureCitation>
).
</paragraph>
<paragraph id="8D5AC06D715D2325658DFA84FC39FAEF" blockId="70.[151,1437,387,1710]" box="[199,998,1287,1314]" pageId="70" pageNumber="71">
Pygidium a simple flattened lobe ventral to anal opening (
<figureCitation id="15DEDCE8715D2325661BFA84FC06FAEF" box="[849,985,1287,1314]" captionStart="FIGURE 36" captionStartId="71.[151,250,1899,1923]" captionTargetBox="[183,1404,181,1875]" captionTargetId="figure-15@71.[183,1404,181,1875]" captionTargetPageId="71" captionText="FIGURE 36. Chaetozone hystricosa. SEMS, (MCZ 161950): A, anterior end, right lateral view; B, anterior end, left lateral view, inset of nuchal organ (not to scale); C, mid-body segments, lateral view; D, posterior segments and pygidium, lateral view; E, posterior segments and pygidium, dorsal view; F, two far posterior setigers with acicular spines and capillaries, lateral view; G, capillary notoseta from an anterior setiger; H, neuroacicular spines and capillaries from a far posterior setiger." figureDoi="http://doi.org/10.5281/zenodo.6341091" httpUri="https://zenodo.org/record/6341091/files/figure.png" pageId="70" pageNumber="71">Fig. 36D–E</figureCitation>
).
</paragraph>
<paragraph id="8D5AC06D715D2325658DFAA8FD86FA8B" blockId="70.[151,1437,387,1710]" box="[199,601,1323,1350]" pageId="70" pageNumber="71">
<emphasis id="BF911C7F715D2325658DFAA8FE13FA88" bold="true" box="[199,460,1323,1349]" pageId="70" pageNumber="71">Methyl green staining</emphasis>
. No pattern.
</paragraph>
</subSubSection>
<subSubSection id="C5FF93E6715D2325658DFACCFAA6F947" pageId="70" pageNumber="71" type="discussion">
<paragraph id="8D5AC06D715D2325658DFACCFB7BFA7C" blockId="70.[151,1437,387,1710]" pageId="70" pageNumber="71">
<emphasis id="BF911C7F715D2325658DFACCFEEBFAA4" bold="true" box="[199,308,1359,1385]" pageId="70" pageNumber="71">Remarks</emphasis>
. Locally,
<taxonomicName id="4AE5BBEE715D232564ECFACCFD7AFAA4" authorityName=": Blake &amp; Levesque" authorityYear="2017" box="[422,677,1359,1385]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="hystricosa">
<emphasis id="BF911C7F715D232564ECFACCFD7AFAA4" box="[422,677,1359,1385]" italics="true" pageId="70" pageNumber="71">Chaetozone hystricosa</emphasis>
</taxonomicName>
is readily recognized by the long, smooth pre-setiger region where there are no annular rings on the peristomium, which is merged almost seamlessly with both the prostomium and setiger 1. The long, narrow dorsal peristomial crest was not noted in the original description.
</paragraph>
<paragraph id="8D5AC06D715D2325658DFA38FAA6F947" blockId="70.[151,1437,387,1710]" pageId="70" pageNumber="71">
Globally, the only species of
<taxonomicName id="4AE5BBEE715D23256747FA38FD4EFA18" authorityName="Malmgren" authorityYear="1867" box="[525,657,1467,1493]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="genus">
<emphasis id="BF911C7F715D23256747FA38FD4EFA18" box="[525,657,1467,1493]" italics="true" pageId="70" pageNumber="71">Chaetozone</emphasis>
</taxonomicName>
with a smooth, non-annulated pre-setiger region similar to that found in
<taxonomicName id="4AE5BBEE715D232565F9FA63FE9AFA34" authorityName=": Blake &amp; Levesque" authorityYear="2017" box="[179,325,1503,1530]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="hystricosa">
<emphasis id="BF911C7F715D232565F9FA63FE9AFA34" box="[179,325,1503,1530]" italics="true" pageId="70" pageNumber="71">C. hystricosa</emphasis>
</taxonomicName>
, a continental shelf species, are two species from abyssal depths:
<taxonomicName id="4AE5BBEE715D23256150FA5CFA43FA34" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[1050,1436,1503,1529]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="reticulata">
<emphasis id="BF911C7F715D23256150FA5CFACFFA34" box="[1050,1296,1503,1529]" italics="true" pageId="70" pageNumber="71">Chaetozone reticulata</emphasis>
<bibRefCitation id="E974BD9C715D2325605CFA5CFA43FA34" author="Blake, J. A." box="[1302,1436,1503,1529]" pageId="70" pageNumber="71" 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>
</taxonomicName>
from the Weddell Sea,
<collectingCountry id="F5F280FD715D232564D5F980FDCBF9D0" box="[415,532,1539,1565]" name="Antarctica" pageId="70" pageNumber="71">Antarctica</collectingCountry>
in
<quantity id="4A1D6D88715D23256776F980FD4EF9D3" box="[572,657,1539,1566]" metricMagnitude="3" metricUnit="m" metricValue="3.111" pageId="70" pageNumber="71" unit="m" value="3111.0">3111 m</quantity>
and
<taxonomicName id="4AE5BBEE715D23256786F980FBBEF9D0" authority="Blake, 2019" authorityName="Blake" authorityYear="2019" box="[716,1121,1539,1565]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="truebloodi">
<emphasis id="BF911C7F715D23256786F980FC11F9D0" box="[716,974,1539,1565]" italics="true" pageId="70" pageNumber="71">Chaetozone truebloodi</emphasis>
Blake, 2019
</taxonomicName>
from the equatorial Pacific Ocean in
<quantity id="4A1D6D88715D2325644BF9A4FE87F98F" box="[257,344,1575,1602]" metricMagnitude="3" metricUnit="m" metricValue="4.88" pageId="70" pageNumber="71" unit="m" value="4880.0">4880 m</quantity>
. Neither of the two deep-sea species, however, have a dorsal peristomial crest and the prostomium of both species is relatively short and rounded apically instead of being long, narrow, and acutely pointed. In addition, these two species have fewer posterior spines, up to 9 or 11 on a side, instead of 12–14 as in
<taxonomicName id="4AE5BBEE715D23256195F9F3FAADF944" authorityName=": Blake &amp; Levesque" authorityYear="2017" box="[1247,1394,1647,1674]" class="Polychaeta" family="Cirratulidae" genus="Chaetozone" kingdom="Animalia" order="Terebellida" pageId="70" pageNumber="71" phylum="Annelida" rank="species" species="hystricosa">
<emphasis id="BF911C7F715D23256195F9F3FAADF944" box="[1247,1394,1647,1674]" italics="true" pageId="70" pageNumber="71">C. hystricosa</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C5FF93E6715D2325658DF910FB66F963" box="[199,1209,1683,1710]" pageId="70" pageNumber="71" type="distribution">
<paragraph id="8D5AC06D715D2325658DF910FB66F963" blockId="70.[151,1437,387,1710]" box="[199,1209,1683,1710]" pageId="70" pageNumber="71">
<emphasis id="BF911C7F715D2325658DF910FE86F960" bold="true" box="[199,345,1683,1709]" pageId="70" pageNumber="71">Distribution</emphasis>
. Northeastern
<collectingCountry id="F5F280FD715D232564B5F910FD47F960" box="[511,664,1683,1709]" name="United States of America" pageId="70" pageNumber="71">United States</collectingCountry>
, Boston Harbor to
<collectingRegion id="4F210E8F715D23256627F910FBD0F960" box="[877,1039,1683,1709]" country="United States of America" name="Massachusetts" pageId="70" pageNumber="71">Massachusetts</collectingRegion>
Bay,
<quantity id="4A1D6D88715D23256105F910FB6AF963" box="[1103,1205,1683,1710]" metricMagnitude="1" metricUnit="m" metricValue="5.25" metricValueMax="9.0" metricValueMin="1.5" pageId="70" pageNumber="71" unit="m" value="52.5" valueMax="90.0" valueMin="15.0">
15–
<specimenCount id="9BE30BE4715D2325613DF910FB6AF963" box="[1143,1205,1683,1710]" pageId="70" pageNumber="71" type="generic">90 m</specimenCount>
</quantity>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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