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<document id="80AD8877B6DE7DE479BCFBE88040E6ED" ID-DOI="10.11646/zootaxa.5424.1.4" ID-ISSN="1175-5326" ID-Zenodo-Dep="10808050" ID-ZooBank="3DF7F8AA-BA4C-4C78-BB1E-450537B79CB6" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="juliana" IM.materialsCitations_approvedBy="juliana" IM.metadata_approvedBy="juliana" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="juliana" checkinTime="1710236571554" checkinUser="plazi" docAuthor="Mendes, Samuel Lucas Da Silva Delgado, Paiva, Paulo Cesar De &amp; Rizzo, Alexandra E." docDate="2024" docId="03B887F73E066F73F884B46E07BAF952" docLanguage="en" docName="zootaxa.5424.1.4.pdf" docOrigin="Zootaxa 5424 (1)" docSource="http://dx.doi.org/10.11646/zootaxa.5424.1.4" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Oligobregma nonatoi Mendes &amp; Paiva &amp; Rizzo 2024, sp. nov." docType="treatment" docVersion="3" lastPageNumber="87" masterDocId="FF81FF8F3E056F74F813B770034EFFCB" masterDocTitle="First record of Oligobregma Kudenov &amp; Blake, 1975 (Annelida: Polychaeta: Scalibregmatidae Malmgren, 1867) from Brazil with the description of three new species" masterLastPageNumber="98" masterPageNumber="80" pageNumber="83" updateTime="1710356895884" updateUser="juliana" zenodo-license-document="CLOSED">
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<mods:titleInfo id="B061FCDF952244C838FC73FB7490A063">
<mods:title id="F51DB0D2E12311F3F0455E0D25E3DB9B">First record of Oligobregma Kudenov &amp; Blake, 1975 (Annelida: Polychaeta: Scalibregmatidae Malmgren, 1867) from Brazil with the description of three new species</mods:title>
</mods:titleInfo>
<mods:name id="130E05B5178F6919C5577D01ED27DB38" type="personal">
<mods:role id="C02130415FA16D449CFCAA9E19A4FFEB">
<mods:roleTerm id="A9AD8CAF2D1D29A3C92AE16240664BB4">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="4B1C019CBE2625BC39464F9A7BFADCE4">Mendes, Samuel Lucas Da Silva Delgado</mods:namePart>
<mods:nameIdentifier id="82A14AC4DB06218A06E44E56546B1B08" type="ORCID">0000-0003-4894-3270</mods:nameIdentifier>
<mods:affiliation id="F6E8A88F1124A6B06F1340099AEFBA56">slucasmendes 013 @ gmail. com</mods:affiliation>
</mods:name>
<mods:name id="0CEF48C6C8AAE51378866593CEE1D7B4" type="personal">
<mods:role id="21823BF042A2026B7F28EC03F3DCF47A">
<mods:roleTerm id="F601F22BC38D9DC09DF5D06A1B39867E">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="C4700982ECABC8CE7826BA67452C2613">Paiva, Paulo Cesar De</mods:namePart>
<mods:nameIdentifier id="3AEFAF0C8C8422BF3302995FA84120FF" type="ORCID">0000-0003-1061-6549</mods:nameIdentifier>
<mods:affiliation id="B327F36AFD6B10CD89E1A387E0095EA1">paulopaiva @ gmail. com</mods:affiliation>
</mods:name>
<mods:name id="56423A547F004AAAC641512AFE200EBF" type="personal">
<mods:role id="82765C60D5EF11BD0DF011D0FAEC91B0">
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</mods:role>
<mods:namePart id="61F7B790D481E96F1E866D56060EAC30">Rizzo, Alexandra E.</mods:namePart>
<mods:nameIdentifier id="CFDE5891FE0F7EB2F5BC459A5A6C00A6" type="ORCID">0000-0001-5056-5358</mods:nameIdentifier>
<mods:affiliation id="708411287BB66C2AD491F76542C0FCEB">Universidade Federal do Rio de Janeiro, Programa de Pós-Graduação em Zoologia, Museu Nacional.</mods:affiliation>
<mods:nameIdentifier id="B5D136232A30BB9C9906D460DF46B3CE" type="email">aerizzo@hotmail.com</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource id="54A824A7A7111B728618DAFB1EA8DD0B">text</mods:typeOfResource>
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<mods:title id="851E20C363E17417010DB4059A9D7924">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="D5652173187A686EE55D28CB0EE73FA0">
<mods:date id="3ED34C5D627CAAD8308DC5FBBF68A2DC">2024</mods:date>
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<mods:number id="C9E2C344782543988D577B787304BCDC">2024-03-12</mods:number>
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<mods:number id="B4B4807E86B71126C7899C5718DEDE13">5424</mods:number>
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<mods:start id="6DE588E799CC5428D020398B0F09F134">80</mods:start>
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<mods:url id="864DD51E29782AAC3184B4D164CB1CEB">http://dx.doi.org/10.11646/zootaxa.5424.1.4</mods:url>
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<mods:classification id="391E5214F271F7415974ADFA1AAD23A6">journal article</mods:classification>
<mods:identifier id="FDFD7500971728A6F11D0CB8E28D40DC" type="DOI">10.11646/zootaxa.5424.1.4</mods:identifier>
<mods:identifier id="B0B35D544E651DD4C09F30FA00924592" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="14BB316185012B2AC400CC90645F1EEE" type="Zenodo-Dep">10808050</mods:identifier>
<mods:identifier id="A32D82A432C1D2ECA6486C19DA9B21E6" type="ZooBank">3DF7F8AA-BA4C-4C78-BB1E-450537B79CB6</mods:identifier>
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<treatment id="03B887F73E066F73F884B46E07BAF952" LSID="urn:lsid:plazi:treatment:03B887F73E066F73F884B46E07BAF952" httpUri="http://treatment.plazi.org/id/03B887F73E066F73F884B46E07BAF952" lastPageId="7" lastPageNumber="87" pageId="3" pageNumber="83">
<subSubSection id="C30B656A3E066F77F884B46E0761FC96" pageId="3" pageNumber="83" type="nomenclature">
<paragraph id="8BAE36E13E066F77F884B46E02B0FCF2" blockId="3.[151,1071,798,897]" box="[151,510,798,825]" pageId="3" pageNumber="83">
<heading id="D0E6818D3E066F77F884B46E02B0FCF2" bold="true" box="[151,510,798,825]" fontSize="11" level="1" pageId="3" pageNumber="83" reason="1">
<emphasis id="B965EAF33E066F77F884B46E02B0FCF2" bold="true" box="[151,510,798,825]" pageId="3" pageNumber="83">
<taxonomicName id="4C114D623E066F77F884B46E02D4FCF2" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[151,410,798,825]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="3" pageNumber="83" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E066F77F884B46E02D4FCF2" bold="true" box="[151,410,798,825]" italics="true" pageId="3" pageNumber="83">Oligobregma nonatoi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25657883E066F77F9B2B46F02B0FCF2" box="[417,510,799,825]" pageId="3" pageNumber="83" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BAE36E13E066F77F884B4320761FC96" blockId="3.[151,1071,798,897]" box="[151,1071,834,861]" pageId="3" pageNumber="83">https://zoobank.org/NomenclaturalActs/baf39e52-2432-4b35-8a21-a871540b0f47</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E066F77F884B4170252FC4A" box="[151,284,871,897]" pageId="3" pageNumber="83" type="description">
<paragraph id="8BAE36E13E066F77F884B4170252FC4A" blockId="3.[151,1071,798,897]" box="[151,284,871,897]" pageId="3" pageNumber="83">
<figureCitation id="132A2A643E066F77F884B4170252FC4A" box="[151,284,871,897]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStartId-0="4.[151,250,1910,1934]" captionStartId-1="5.[151,250,1878,1902]" captionStartId-2="6.[151,250,1816,1840]" captionTargetBox-0="[162,1425,190,1874]" captionTargetBox-1="[161,1436,185,1854]" captionTargetBox-2="[154,1434,814,1791]" captionTargetId-0="figure-18@4.[151,1436,179,1885]" captionTargetId-1="figure-26@5.[151,1436,181,1854]" captionTargetId-2="figure-282@6.[151,1436,811,1793]" captionTargetPageId-0="4" captionTargetPageId-1="5" captionTargetPageId-2="6" captionText-0="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." captionText-1="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." captionText-2="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi-0="http://doi.org/10.5281/zenodo.10808056" figureDoi-1="http://doi.org/10.5281/zenodo.10808058" figureDoi-2="http://doi.org/10.5281/zenodo.10808061" httpUri-0="https://zenodo.org/record/10808056/files/figure.png" httpUri-1="https://zenodo.org/record/10808058/files/figure.png" httpUri-2="https://zenodo.org/record/10808061/files/figure.png" pageId="3" pageNumber="83">Figures 1–3</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E066F77F884B4DF0093FAC6" pageId="3" pageNumber="83" type="materials_examined">
<paragraph id="8BAE36E13E066F77F884B4DF02C6FB0E" blockId="3.[151,1437,942,2013]" pageId="3" pageNumber="83">
<emphasis id="B965EAF33E066F77F884B4DF0204FC03" bold="true" box="[151,330,942,969]" pageId="3" pageNumber="83">Type material.</emphasis>
<materialsCitation id="3B793CBC3E066F77F947B4DF022FFC26" collectingDate="2021-03-29" collectionCode="UERJ, SANSED, R" pageId="3" pageNumber="83" specimenCode="UERJ 9220, SANSED8, R3" specimenCount="1" typeStatus="holotype">
<specimenCode id="DBB79E9A3E066F77F947B4DF0295FC02" box="[340,475,943,969]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ 9220</specimenCode>
(
<typeStatus id="54AA88433E066F77F9FEB4DF0112FC02" box="[493,604,943,969]" pageId="3" pageNumber="83" type="holotype">Holotype</typeStatus>
:
<specimenCode id="DBB79E9A3E066F77FA79B4DF01A4FC02" box="[618,746,943,969]" collectionCode="SANSED" pageId="3" pageNumber="83">SANSED8</specimenCode>
; H7
<specimenCode id="DBB79E9A3E066F77FB0EB4DF0071FC02" box="[797,831,943,969]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R3</specimenCode>
; Lat: -23.849900; Long: -41.744800;
<date id="FFAF10213E066F77FCEFB4DF06D6FC02" box="[1276,1432,943,969]" pageId="3" pageNumber="83" value="2021-03-29">
<collectingDate id="EFEBE9C93E066F77FCEFB4DF06D6FC02" box="[1276,1432,943,969]" pageId="3" pageNumber="83" value="2021-03-29">29 Mar 2021</collectingDate>
</date>
; 700 meters deep)
</materialsCitation>
;
<materialsCitation id="3B793CBC3E066F77F97CB4A301D8FBDA" collectingDate="2009-07-18" collectionCode="UERJ, R" pageId="3" pageNumber="83" specimenCode="UERJ 1120, R2" specimenCount="1" typeStatus="paratype">
<specimenCode id="DBB79E9A3E066F77F97CB4A302BDFC26" box="[367,499,979,1005]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ 1120</specimenCode>
(
<typeStatus id="54AA88433E066F77FA10B4A30122FC26" box="[515,620,979,1005]" pageId="3" pageNumber="83" type="paratype">Paratype</typeStatus>
: HABITATS; HAB7H7
<specimenCode id="DBB79E9A3E066F77FB6CB4A300EFFC26" box="[895,929,979,1005]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R2</specimenCode>
; Lat: -22.684635; Long: -40.000717;
<date id="FFAF10213E066F77FD45B4A3039DFBDA" pageId="3" pageNumber="83" value="2009-07-18">
<collectingDate id="EFEBE9C93E066F77FD45B4A3039DFBDA" pageId="3" pageNumber="83" value="2009-07-18">18 Jul 2009</collectingDate>
</date>
; 790 meters deep; Complete specimen)
</materialsCitation>
;
<materialsCitation id="3B793CBC3E066F77FAB1B48700C3FBFE" collectingDate="2013-06-11" collectionCode="UERJ, AMBES, R" pageId="3" pageNumber="83" specimenCode="UERJ 8755, AMBES11, R2" specimenCount="1" typeStatus="paratype">
<specimenCode id="DBB79E9A3E066F77FAB1B4870068FBDA" box="[674,806,1014,1041]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ 8755</specimenCode>
(
<typeStatus id="54AA88433E066F77FB26B48700D0FBDA" box="[821,926,1015,1041]" pageId="3" pageNumber="83" type="paratype">Paratype</typeStatus>
:
<specimenCode id="DBB79E9A3E066F77FBB4B4870766FBDA" box="[935,1064,1015,1041]" collectionCode="AMBES" pageId="3" pageNumber="83">AMBES11</specimenCode>
; A10
<specimenCode id="DBB79E9A3E066F77FC77B48707C8FBDA" box="[1124,1158,1015,1041]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R2</specimenCode>
; Lat: -21.183086; Long: -38.468053;
<date id="FFAF10213E066F77F93AB36B02F6FBFE" box="[297,440,1051,1077]" pageId="3" pageNumber="83" value="2013-06-11">
<collectingDate id="EFEBE9C93E066F77F93AB36B02F6FBFE" box="[297,440,1051,1077]" pageId="3" pageNumber="83" value="2013-06-11">11 Jun 2013</collectingDate>
</date>
; 2987 meters deep; Complete specimen)
</materialsCitation>
;
<materialsCitation id="3B793CBC3E066F77FB8AB36B07DFFB92" collectingDate="2011-12-25" collectionCode="UERJ, R" pageId="3" pageNumber="83" specimenCode="UERJ 9227, R1" specimenCount="1" typeStatus="paratype">
<specimenCode id="DBB79E9A3E066F77FB8AB36B0753FBFE" box="[921,1053,1051,1077]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ 9227</specimenCode>
(
<typeStatus id="54AA88433E066F77FC3EB36B07D8FBFE" box="[1069,1174,1051,1077]" pageId="3" pageNumber="83" type="paratype">Paratype</typeStatus>
: Ambes4; B10
<specimenCode id="DBB79E9A3E066F77FD52B36B062CFBFE" box="[1345,1378,1051,1077]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R1</specimenCode>
; Lat: -21.077908; Long: -38.437133;
<date id="FFAF10213E066F77FA03B34E01E2FB92" box="[528,684,1086,1113]" pageId="3" pageNumber="83" value="2011-12-25">
<collectingDate id="EFEBE9C93E066F77FA03B34E01E2FB92" box="[528,684,1086,1113]" pageId="3" pageNumber="83" value="2011-12-25">25 Dec 2011</collectingDate>
</date>
; 3007 meters deep; Complete specimen)
</materialsCitation>
;
<materialsCitation id="3B793CBC3E066F77FCB3B34F06D6FBB6" collectingDate="2019-06-14" collectionCode="UERJ, SANSED, R" pageId="3" pageNumber="83" specimenCode="UERJ9228, SANSED1, R3" specimenCount="1" typeStatus="paratype">
<specimenCode id="DBB79E9A3E066F77FCB3B34F0653FB92" box="[1184,1309,1087,1113]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ9228</specimenCode>
(
<typeStatus id="54AA88433E066F77FD23B34F06D7FB92" box="[1328,1433,1087,1113]" pageId="3" pageNumber="83" type="paratype">Paratype</typeStatus>
:
<specimenCode id="DBB79E9A3E066F77F884B3130259FBB6" box="[151,279,1123,1149]" collectionCode="SANSED" pageId="3" pageNumber="83">SANSED1</specimenCode>
; A8
<specimenCode id="DBB79E9A3E066F77F95BB3130224FBB6" box="[328,362,1123,1149]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R3</specimenCode>
; Lat: -27.296800; Long: -46.625200;
<date id="FFAF10213E066F77FB35B31300F4FBB6" box="[806,954,1123,1149]" pageId="3" pageNumber="83" value="2019-06-14">
<collectingDate id="EFEBE9C93E066F77FB35B31300F4FBB6" box="[806,954,1123,1149]" pageId="3" pageNumber="83" value="2019-06-14">14 Jun 2019</collectingDate>
</date>
; 1045 meters deep; Complete specimen)
</materialsCitation>
;
<materialsCitation id="3B793CBC3E066F77F884B3F702CAFB0E" collectingDate="2019-07-04" collectionCode="UERJ, SANSED, R" pageId="3" pageNumber="83" specimenCode="UERJ9229, SANSED2, R2" specimenCount="1" typeStatus="paratype">
<specimenCode id="DBB79E9A3E066F77F884B3F7025DFB6A" box="[151,275,1159,1185]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ9229</specimenCode>
(
<typeStatus id="54AA88433E066F77F936B3F702C0FB6A" box="[293,398,1159,1185]" pageId="3" pageNumber="83" type="paratype">Paratype</typeStatus>
:
<specimenCode id="DBB79E9A3E066F77F98FB3F70155FB6A" box="[412,539,1159,1185]" collectionCode="SANSED" pageId="3" pageNumber="83">SANSED2</specimenCode>
; E9
<specimenCode id="DBB79E9A3E066F77FA58B3F70120FB6A" box="[587,622,1159,1185]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R2</specimenCode>
; Lat: -25.001100; Long: -44.360900;
<date id="FFAF10213E066F77FC39B3F707F6FB6A" box="[1066,1208,1159,1185]" pageId="3" pageNumber="83" value="2019-07-04">
<collectingDate id="EFEBE9C93E066F77FC39B3F707F6FB6A" box="[1066,1208,1159,1185]" pageId="3" pageNumber="83" value="2019-07-04">04 Jul 2019</collectingDate>
</date>
; 1298 meters deep; Complete specimen)
</materialsCitation>
.
</paragraph>
<paragraph id="8BAE36E13E066F77F8D4B3BE0093FAC6" blockId="3.[151,1437,942,2013]" pageId="3" pageNumber="83">
<emphasis id="B965EAF33E066F77F8D4B3BE02FAFB23" bold="true" box="[199,436,1230,1256]" pageId="3" pageNumber="83">Additional material</emphasis>
.
<materialsCitation id="3B793CBC3E066F77F9D0B3BF0108FB22" box="[451,582,1230,1257]" collectionCode="UERJ" pageId="3" pageNumber="83" specimenCode="UERJ 8753" specimenCount="1">
<specimenCode id="DBB79E9A3E066F77F9D0B3BF0108FB22" box="[451,582,1230,1257]" collectionCode="UERJ" pageId="3" pageNumber="83">UERJ 8753</specimenCode>
</materialsCitation>
<materialsCitation id="3B793CBC3E066F77FA5DB3BF01BBFB22" box="[590,757,1231,1257]" collectionCode="UERJ" pageId="3" pageNumber="83" specimenCode="AMBES4" specimenCount="1">
(
<specimenCode id="DBB79E9A3E066F77FA45B3BF0184FB22" box="[598,714,1231,1257]" collectionCode="AMBES" pageId="3" pageNumber="83">AMBES4</specimenCode>
; F9
</materialsCitation>
<materialsCitation id="3B793CBC3E066F77FAE6B3BF0094FAC6" collectingDate="2011-12-22" collectionCode="R" pageId="3" pageNumber="83" specimenCode="R2" specimenCount="1">
<specimenCode id="DBB79E9A3E066F77FAE6B3BF0056FB22" box="[757,792,1231,1257]" collectionCode="R" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="3" pageNumber="83">R2</specimenCode>
; Lat: -20.484253; Long: -38.387639,
<date id="FFAF10213E066F77FCD6B3BF0616FB22" box="[1221,1368,1231,1257]" pageId="3" pageNumber="83" value="2011-12-22">
<collectingDate id="EFEBE9C93E066F77FCD6B3BF0616FB22" box="[1221,1368,1231,1257]" pageId="3" pageNumber="83" value="2011-12-22">22 Dec 2011</collectingDate>
</date>
, 2504 meters deep,
<specimenCount id="9D17FD683E066F77F93FB38302E5FAC6" box="[300,427,1267,1293]" count="1" pageId="3" pageNumber="83" type="generic">1 specimen</specimenCount>
mounted to SEM, incomplete, anterior fragment)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E066F77F8D4B2660024FA2E" pageId="3" pageNumber="83" type="diagnosis">
<paragraph id="8BAE36E13E066F77F8D4B2660024FA2E" blockId="3.[151,1437,942,2013]" pageId="3" pageNumber="83">
<emphasis id="B965EAF33E066F77F8D4B266020CFAFB" bold="true" box="[199,322,1302,1328]" pageId="3" pageNumber="83">Diagnosis.</emphasis>
Triangular prostomium, with two short cylindrical horns, both projected upwards. Eyes absent. Acicular spines present from chaetiger 1–4 on notopodia and 1–3 on neuropodia. Acicular spines transitional on chaetiger
<quantity id="4CE99B043E066F77F915B22F027DFAB2" box="[262,307,1375,1401]" metricMagnitude="-1" metricUnit="m" metricValue="1.016" pageId="3" pageNumber="83" unit="in" value="4.0">4 in</quantity>
notopodia and on chaetiger
<quantity id="4CE99B043E066F77FA6AB22F01E8FAB2" box="[633,678,1375,1401]" metricMagnitude="-2" metricUnit="m" metricValue="7.62" pageId="3" pageNumber="83" unit="in" value="3.0">3 in</quantity>
neuropodia. Lyrate chaetae present from chaetiger 4 on notopodia and from chaetiger 3 on neuropodia. Spinous chaetae absent. Notopodial lobe two times larger and longer than neuropodial lobe, both of same shape throughout. Dorsal and ventral cirri present from chaetiger 13. Pygidium triannulated, with long crenulated and fusiform terminal margin.
</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E066F73F8D4B29E01F2FD4E" lastPageId="7" lastPageNumber="87" pageId="3" pageNumber="83" type="description">
<paragraph id="8BAE36E13E066F77F8D4B29E01EDF9E6" blockId="3.[151,1437,942,2013]" pageId="3" pageNumber="83">
<emphasis id="B965EAF33E066F77F8D4B29E0217F9C3" bold="true" box="[199,345,1518,1544]" pageId="3" pageNumber="83">Description.</emphasis>
<typeStatus id="54AA88433E066F77F970B29F0285F9C2" box="[355,459,1519,1545]" pageId="3" pageNumber="83" type="holotype">Holotype</typeStatus>
complete, with 41 chaetigers, measuring
<quantity id="4CE99B043E066F77FBA7B29F0749F9C2" box="[948,1031,1519,1545]" metricMagnitude="-2" metricUnit="m" metricValue="3.0" pageId="3" pageNumber="83" unit="mm" value="30.0">30 mm</quantity>
long,
<quantity id="4CE99B043E066F77FC46B29E07D4F9C2" box="[1109,1178,1518,1545]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="3" pageNumber="83" unit="mm" value="5.0">5 mm</quantity>
wide on its expanded region and
<quantity id="4CE99B043E066F77F906B1630218F9E6" box="[277,342,1555,1581]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="3" pageNumber="83" unit="mm" value="2.0">2 mm</quantity>
wide on its narrowest region.
</paragraph>
<paragraph id="8BAE36E13E066F77F8D4B14700D7F8CE" blockId="3.[151,1437,942,2013]" pageId="3" pageNumber="83">
Large specimens,
<typeStatus id="54AA88433E066F77F985B147014FF99A" box="[406,513,1591,1617]" pageId="3" pageNumber="83" type="paratype">paratypes</typeStatus>
measuring
<quantity id="4CE99B043E066F77FA9AB14601B8F99A" box="[649,758,1590,1617]" metricMagnitude="-2" metricUnit="m" metricValue="1.75" metricValueMax="3.0" metricValueMin="0.5" pageId="3" pageNumber="83" unit="mm" value="17.5" valueMax="30.0" valueMin="5.0">5–30 mm</quantity>
long,
<quantity id="4CE99B043E066F77FB52B14600EEF99A" box="[833,928,1590,1617]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" metricValueMax="5.0" metricValueMin="1.0" pageId="3" pageNumber="83" unit="mm" value="3.0" valueMax="5.0" valueMin="1.0">1–5 mm</quantity>
wide on its expanded region and
<quantity id="4CE99B043E066F77FD3BB14606D3F99A" box="[1320,1437,1590,1617]" metricMagnitude="-3" metricUnit="m" metricValue="1.25" metricValueMax="2.0" metricValueMin="0.5" pageId="3" pageNumber="83" unit="mm" value="1.25" valueMax="2.0" valueMin="0.5">0.5–2 mm</quantity>
wide on its narrowest region for 28–41 chaetigerous segments. Body arenicoliform, expanded on chaetigers 3–12. Colour in alcohol white to yellowish. Body surface covered by secondarily annulated rings. Secondary annuli composed of inconspicuous rounded to quadrangular pads in both anterior and posterior regions. Annuli’s pads on anterior region may be weaker in comparison with posterior region. Pads rarely present small individual blackish to dark blue glands inside, consisting of thin entangled cellular tubules.
</paragraph>
<paragraph id="8BAE36E13E066F77F8D4B07F0618F816" blockId="3.[151,1437,942,2013]" pageId="3" pageNumber="83">
Triangular prostomium, with two short cylindrical horns, both projected upwards (
<figureCitation id="132A2A643E066F77FC7EB07F0785F8E2" box="[1133,1227,1807,1833]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="3" pageNumber="83">Figs 1A</figureCitation>
;
<figureCitation id="132A2A643E066F77FCCBB07F0650F8E2" box="[1240,1310,1807,1833]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="3" pageNumber="83">2A–B</figureCitation>
;
<figureCitation id="132A2A643E066F77FD38B07F061FF8E2" box="[1323,1361,1807,1833]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="3" pageNumber="83">3A</figureCitation>
). Eyes absent. Nuchal organs not observed. Peristomium achaetous, uniannulated dorsally and triannulated ventrally (
<figureCitation id="132A2A643E066F77F88CB02703B5F8BA" box="[159,251,1879,1905]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="3" pageNumber="83">Fig. 1A</figureCitation>
). Mouth’s lips uniannulated. Proboscis smooth. Ventral groove present from chaetiger 1, with first pad asymmetrical, contributing to mouth’s lower lip formation (
<figureCitation id="132A2A643E066F77FB4BB00B00F5F85E" box="[856,955,1915,1941]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="3" pageNumber="83">Figs 1A</figureCitation>
;
<figureCitation id="132A2A643E066F77FBDFB00B00BCF85E" box="[972,1010,1915,1941]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="3" pageNumber="83">3A</figureCitation>
). Quadrangular biannulated pads on chaetigers 2–3, then triannulated on following chaetigers, forming a ventral mid-ridge up to the end of the body (
<figureCitation id="132A2A643E066F77F88CB0B303B2F816" box="[159,252,1987,2013]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="3" pageNumber="83">Figs 1A</figureCitation>
;
<figureCitation id="132A2A643E066F77F91AB0B30260F816" box="[265,302,1987,2013]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="3" pageNumber="83">3A</figureCitation>
). Each pad paired to a single chaetiger. Posterior pads smaller and narrower than anterior ones.
</paragraph>
<caption id="DF6E66693E016F70F884B00600E2F81C" ID-DOI="http://doi.org/10.5281/zenodo.10808056" ID-Zenodo-Dep="10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="4" pageNumber="84" startId="4.[151,250,1910,1934]" targetBox="[162,1425,190,1874]" targetPageId="4" targetType="figure">
<paragraph id="8BAE36E13E016F70F884B00600E2F81C" blockId="4.[151,1437,1910,2007]" pageId="4" pageNumber="84">
<emphasis id="B965EAF33E016F70F884B006025BF844" bold="true" box="[151,277,1910,1935]" pageId="4" pageNumber="84">FIGURE 1.</emphasis>
Holotype of
<taxonomicName id="4C114D623E016F70F9B1B0070130F845" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[418,638,1911,1935]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="4" pageNumber="84" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E016F70F9B1B0070130F845" box="[418,638,1911,1935]" italics="true" pageId="4" pageNumber="84">Oligobregma nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E016F70FA94B0070194F844" bold="true" box="[647,730,1911,1935]" pageId="4" pageNumber="84">
<taxonomicNameLabel id="A25657883E016F70FA94B0070194F844" box="[647,730,1911,1935]" pageId="4" pageNumber="84" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
line drawings.
<emphasis id="B965EAF33E016F70FB6EB00600DBF845" bold="true" box="[893,917,1910,1934]" pageId="4" pageNumber="84">A.</emphasis>
Anterior body in ventral view.
<emphasis id="B965EAF33E016F70FCF2B00707B6F844" bold="true" box="[1249,1272,1911,1935]" pageId="4" pageNumber="84">B.</emphasis>
Acicular spine.
<emphasis id="B965EAF33E016F70F884B0EA03FEF879" bold="true" box="[151,176,1946,1970]" pageId="4" pageNumber="84">C.</emphasis>
Lyrate chaeta.
<emphasis id="B965EAF33E016F70F943B0EB0227F878" bold="true" box="[336,361,1947,1971]" pageId="4" pageNumber="84">D.</emphasis>
Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus.
</paragraph>
</caption>
<caption id="DF6E66693E006F72F884B026027AFEF4" ID-DOI="http://doi.org/10.5281/zenodo.10808058" ID-Zenodo-Dep="10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" lastPageId="6" lastPageNumber="86" pageId="5" pageNumber="85" startId="5.[151,250,1878,1902]" subCaptionStartIDs="6.[932,1080,223,247]" subCaptionStarts="Abbr" targetBox="[161,1436,185,1854]" targetPageId="5" targetType="figure">
<paragraph id="8BAE36E13E006F72F884B026027AFEF4" blockId="5.[151,1436,1878,1974]" lastBlockId="6.[151,1437,186,319]" lastPageId="6" lastPageNumber="86" pageId="5" pageNumber="85">
<emphasis id="B965EAF33E006F71F884B0260258F8A5" bold="true" box="[151,278,1878,1902]" pageId="5" pageNumber="85">FIGURE 2.</emphasis>
<taxonomicName id="4C114D623E006F71F933B02602B3F8A5" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[288,509,1878,1902]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="5" pageNumber="85" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E006F71F933B02602B3F8A5" box="[288,509,1878,1902]" italics="true" pageId="5" pageNumber="85">Oligobregma nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E006F71FA14B0260115F8A5" bold="true" box="[519,603,1878,1902]" pageId="5" pageNumber="85">
<taxonomicNameLabel id="A25657883E006F71FA14B0260115F8A5" box="[519,603,1878,1902]" pageId="5" pageNumber="85" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Holotype in optical microscopy stained with Shirlastain A.
<emphasis id="B965EAF33E006F71FCCAB02607BCF8A5" bold="true" box="[1241,1266,1878,1902]" pageId="5" pageNumber="85">A.</emphasis>
Anterior region in ventral view.
<emphasis id="B965EAF33E006F71F92CB00A0219F859" bold="true" box="[319,343,1914,1938]" pageId="5" pageNumber="85">B.</emphasis>
Anterior region in dorsal view.
<emphasis id="B965EAF33E006F71FAB6B00A01F0F859" bold="true" box="[677,702,1914,1938]" pageId="5" pageNumber="85">C.</emphasis>
Acicular spines on notopodia of chaetigers 1–3.
<emphasis id="B965EAF33E006F71FCAFB00A079AF859" bold="true" box="[1212,1236,1914,1938]" pageId="5" pageNumber="85">D.</emphasis>
Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines.
<emphasis id="B965EAF33E006F71FC10B0EE0752F87D" bold="true" box="[1027,1052,1950,1974]" pageId="5" pageNumber="85">E.</emphasis>
Lateral view of midbody parapodia, when parapodial lobes emerge.
<emphasis id="B965EAF33E036F72F9C4B7CB02A4FF18" bold="true" box="[471,490,187,211]" pageId="6" pageNumber="86">F.</emphasis>
Mid-body parapodia in anterior view.
<emphasis id="B965EAF33E036F72FB62B7CA00C5FF19" bold="true" box="[881,907,186,210]" pageId="6" pageNumber="86">G.</emphasis>
Interramal papillae.
<emphasis id="B965EAF33E036F72FC4DB7CB0736FF18" bold="true" box="[1118,1144,187,211]" pageId="6" pageNumber="86">H.</emphasis>
Lyrate chaeta.
<emphasis id="B965EAF33E036F72FD01B7CB066CFF18" bold="true" box="[1298,1314,187,211]" pageId="6" pageNumber="86">I.</emphasis>
Dorsal cirri with tubular glands.
<emphasis id="B965EAF33E036F72F97FB7AF0231FF3C" bold="true" box="[364,383,223,247]" pageId="6" pageNumber="86">J.</emphasis>
Ventral cirrus with tubular glands.
<emphasis id="B965EAF33E036F72FAFDB7AF0046FF3C" bold="true" box="[750,776,223,247]" pageId="6" pageNumber="86">K.</emphasis>
posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove.
</paragraph>
</caption>
<paragraph id="8BAE36E13E036F72F8D4B61D07B6FD48" blockId="6.[151,1437,365,787]" pageId="6" pageNumber="86">
Dorsally and ventrally, chaetiger 1 presents two secondary annuli connected to parapodial lobes, plus one superior and one inferior intermediate annulation delimitating segment; from chaetiger 2 throughout, three secondary annuli connected to parapodial lobes, plus one superior and one inferior intermediate annulation delimitating segment (
<figureCitation id="132A2A643E036F72F88CB6A903B2FE38" box="[159,252,473,499]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="6" pageNumber="86">Figs 1A</figureCitation>
;
<figureCitation id="132A2A643E036F72F91BB6A90263FE38" box="[264,301,473,499]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="6" pageNumber="86">3A</figureCitation>
). Dorsal and ventral cirri present from chaetiger 13 (
<figureCitation id="132A2A643E036F72FB65B6A9009DFE38" box="[886,979,473,499]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="6" pageNumber="86">Figs 1D</figureCitation>
;
<figureCitation id="132A2A643E036F72FBCCB6A9074EFE38" box="[991,1024,473,499]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">2F</figureCitation>
). Interramal papillae knob-like when everted, also observed from chaetiger 13 (
<figureCitation id="132A2A643E036F72FA63B68D01A4FDDC" box="[624,746,509,535]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">Fig. 2E, G</figureCitation>
). Dorsal and ventral cirri with a broad basis transitioning to a rounded tip, reaching their larger size on midbody chaetigers and becoming smaller on posterior chaetigers (
<figureCitation id="132A2A643E036F72FD79B55103F2FD94" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="6" pageNumber="86">Figs 1D</figureCitation>
;
<figureCitation id="132A2A643E036F72F8D8B53503A2FD94" box="[203,236,581,607]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">2F</figureCitation>
). Densely entangled black tubular glands may be present in all cirriferous chaetigers, filling completely internal space in well-preserved specimens, but sometimes concentrated in apical region (
<figureCitation id="132A2A643E036F72FC90B51907A2FD48" box="[1155,1260,617,643]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">Fig. 2I–J</figureCitation>
).
</paragraph>
<paragraph id="8BAE36E13E036F72F8D4B5FD065CFCD8" blockId="6.[151,1437,365,787]" pageId="6" pageNumber="86">
Parapodial lobes reduced in anterior chaetigers; changing to asymmetrical projection with a broad basis transitioning abruptly to a pointed tip, from midbody to posterior chaetigers (
<figureCitation id="132A2A643E036F72FB55B5C100EEFD00" box="[838,928,689,715]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="6" pageNumber="86">Figs 1D</figureCitation>
;
<figureCitation id="132A2A643E036F72FBB8B5C100A4FD00" box="[939,1002,689,715]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">2E‒F</figureCitation>
); this abrupt transition occurs on ventral side of notopodial lobe and on dorsal side of neuropodial lobe (
<figureCitation id="132A2A643E036F72FB4EB5A500F4FD24" box="[861,954,725,751]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="6" pageNumber="86">Figs 1D</figureCitation>
;
<figureCitation id="132A2A643E036F72FBDBB5A500A7FD24" box="[968,1001,725,751]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">2F</figureCitation>
). Notopodial lobe two times larger and longer than neuropodial lobe. Posteriorly, parapodial cirri and lobes reduce its size but maintain its shape.
</paragraph>
<caption id="DF6E66693E036F72F884B068075CF8B3" ID-DOI="http://doi.org/10.5281/zenodo.10808061" ID-Zenodo-Dep="10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="6" pageNumber="86" startId="6.[151,250,1816,1840]" targetBox="[154,1434,814,1791]" targetPageId="6" targetType="figure">
<paragraph id="8BAE36E13E036F72F884B068075CF8B3" blockId="6.[151,1437,1816,1913]" pageId="6" pageNumber="86">
<emphasis id="B965EAF33E036F72F884B068025AF8FB" bold="true" box="[151,276,1816,1840]" pageId="6" pageNumber="86">FIGURE 3.</emphasis>
SEM of
<taxonomicName id="4C114D623E036F72F960B0680103F8FB" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[371,589,1816,1840]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="6" pageNumber="86" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E036F72F960B0680103F8FB" box="[371,589,1816,1840]" italics="true" pageId="6" pageNumber="86">Oligobregma nonatoi</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25657883E036F72FA46B06901E9F8FB" box="[597,679,1817,1841]" pageId="6" pageNumber="86" rank="species">
<emphasis id="B965EAF33E036F72FA46B06901EFF8FA" bold="true" box="[597,673,1817,1841]" pageId="6" pageNumber="86">sp. nov</emphasis>
.
</taxonomicNameLabel>
specimen
<emphasis id="B965EAF33E036F72FB05B0680061F8FB" bold="true" box="[790,815,1816,1840]" pageId="6" pageNumber="86">A.</emphasis>
Anterior body in ventral view.
<emphasis id="B965EAF33E036F72FC61B06907C7F8FA" bold="true" box="[1138,1161,1817,1841]" pageId="6" pageNumber="86">B.</emphasis>
Acicular spines.
<emphasis id="B965EAF33E036F72FD2FB068061AF8FB" bold="true" box="[1340,1364,1816,1840]" pageId="6" pageNumber="86">C.</emphasis>
Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad.
</paragraph>
</caption>
<paragraph id="8BAE36E13E036F73F8D4B0D7066AFE42" blockId="6.[151,1436,1959,2021]" lastBlockId="7.[151,1437,151,1689]" lastPageId="7" lastPageNumber="87" pageId="6" pageNumber="86">
Acicular spines present from chaetigers 1–4 on notopodia and 1–3 on neuropodia (
<figureCitation id="132A2A643E036F72FC75B0D707ADF80A" box="[1126,1251,1959,1985]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="6" pageNumber="86">Figs 1A‒B</figureCitation>
;
<figureCitation id="132A2A643E036F72FCE3B0D70678F80A" box="[1264,1334,1959,1985]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="6" pageNumber="86">2C‒D</figureCitation>
;
<figureCitation id="132A2A643E036F72FD51B0D7062BF80A" box="[1346,1381,1959,1985]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="6" pageNumber="86">3B</figureCitation>
). On notopodia, chaetigers 1–2 present two anterior rows of strong curved acicular spines, plus a posterior row of capillary chaetae; numbering nine spines on anterior row and eight spines on posterior row. Chaetigers 3–4 present one anterior row of weaker acicular spines plus two posterior rows of capillaries. Chaetiger 3 with nine curved acicular spines, weaker than chaetigers 1–2. Chaetiger 4 with five acicular spines, weaker and straighter than spines in chaetiger 3. Neuropodia of chaetigers 1–2 with two rows of curved acicular spines plus a posterior row of capillary chaetae; nine spines on anterior row and eight spines on posterior row. Chaetiger 3 with one row of five straight acicular spines, weaker than chaetigers 1–2, plus two rows of capillary chaetae (
<figureCitation id="132A2A643E026F73FB4DB63B00F6FEAE" box="[862,952,331,357]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="7" pageNumber="87">Fig. 2D</figureCitation>
). Acicular spines on notopodia on chaetiger 4 and neuropodia on chaetiger 3 transitional between distinct acicular spines and capillaries (
<figureCitation id="132A2A643E026F73FC8EB61F0659FE42" box="[1181,1303,367,393]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="7" pageNumber="87">Fig. 2C‒D</figureCitation>
).
</paragraph>
<paragraph id="8BAE36E13E026F73F8D4B6E301F2FD4E" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
Short spinous chaetae absent. Lyrate chaetae present on neuropodia from chaetiger 3, and on notopodia from chaetiger 4 (
<figureCitation id="132A2A643E026F73F931B6C70230FE1A" box="[290,382,439,465]" captionStart="FIGURE 1" captionStartId="4.[151,250,1910,1934]" captionTargetBox="[162,1425,190,1874]" captionTargetId="figure-18@4.[151,1436,179,1885]" captionTargetPageId="4" captionText="FIGURE 1. Holotype of Oligobregma nonatoi sp. nov. line drawings. A. Anterior body in ventral view. B. Acicular spine. C. Lyrate chaeta. D. Midbody parapodium in anterior view. Abbreviations: dC = Dorsal cirrus; Hor = Prostomial horn; iP = Interramal papilla; Pe = Peristomium; Pro = Prostomium; vC = Ventral cirrus." figureDoi="http://doi.org/10.5281/zenodo.10808056" httpUri="https://zenodo.org/record/10808056/files/figure.png" pageId="7" pageNumber="87">Figs 1C</figureCitation>
;
<figureCitation id="132A2A643E026F73F999B6C702FEFE1A" box="[394,432,439,465]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="7" pageNumber="87">2H</figureCitation>
;
<figureCitation id="132A2A643E026F73F9AFB6C702AEFE1A" box="[444,480,439,465]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="7" pageNumber="87">3C</figureCitation>
); numbering four in each fascicle on anterior chaetigers, reaching eight in number on midbody chaetigers, then reaching five in number on posterior chaetigers; always with unequal tynes (tyne’s ratio = 1.3). Capillaries organized in one row on chaetigers 1–2, then two rows from chaetiger 3 up to midbody and one row in posterior chaetigers. Pygidium triannulated, with long and fusiform terminal margin (
<figureCitation id="132A2A643E026F73FCD9B5530669FDF6" box="[1226,1319,547,573]" captionStart="FIGURE 2" captionStartId="5.[151,250,1878,1902]" captionTargetBox="[161,1436,185,1854]" captionTargetId="figure-26@5.[151,1436,181,1854]" captionTargetPageId="5" captionText="FIGURE 2. Oligobregma nonatoi sp. nov. Holotype in optical microscopy stained with Shirlastain A. A. Anterior region in ventral view. B. Anterior region in dorsal view. C. Acicular spines on notopodia of chaetigers 1–3. D. Acicular spines on notopodia of chaetigers 2–4, with chaetiger 4 presenting transitional acicular spines. E. Lateral view of midbody parapodia, when parapodial lobes emerge. F. Mid-body parapodia in anterior view. G. Interramal papillae. H. Lyrate chaeta. I. Dorsal cirri with tubular glands. J. Ventral cirrus with tubular glands. K. posterior end. Abbreviations: As = Acicular spine; dC = Dorsal cirrus; iP = Interramal papillae; Ly = Lyrate chaeta; Nel = Neuropodial lobe; Nol = Notopodial Lobe; Pg = Pygidium; Vg = Ventral groove." figureDoi="http://doi.org/10.5281/zenodo.10808058" httpUri="https://zenodo.org/record/10808058/files/figure.png" pageId="7" pageNumber="87">Fig. 2K</figureCitation>
); terminal margin crenulated with 18 long lobules from which emerges four pygidial cirri projections, a dorso-lateral pair and a ventro-lateral pair. Pygidial cirri short and thin.
</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E026F73F8D4B5FF00ACFA2E" pageId="7" pageNumber="87" type="discussion">
<paragraph id="8BAE36E13E026F73F8D4B5FF076DFC96" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
<emphasis id="B965EAF33E026F73F8D4B5FF0275FD62" bold="true" box="[199,315,655,681]" pageId="7" pageNumber="87">Remarks.</emphasis>
<taxonomicName id="4C114D623E026F73F957B5FF0176FD63" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[324,568,655,681]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73F957B5FF0176FD63" box="[324,568,655,681]" italics="true" pageId="7" pageNumber="87">Oligobregma nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FA52B5FF01D3FD62" bold="true" box="[577,669,655,681]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FA52B5FF01D3FD62" box="[577,669,655,681]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is morphologically similar to
<taxonomicName id="4C114D623E026F73FBE9B5FF0381FD06" authority="Schuller &amp; Hilbig, 2007" authorityName="Schuller &amp; Hilbig" authorityYear="2007" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="quadrispinosa">
<emphasis id="B965EAF33E026F73FBE9B5FF07F1FD62" box="[1018,1215,655,681]" italics="true" pageId="7" pageNumber="87">O. quadrispinosa</emphasis>
<bibRefCitation id="EF804B103E026F73FCDBB5FF0381FD06" author="Schuller, M. &amp; Hilbig, B." pageId="7" pageNumber="87" pagination="35 - 45" refId="ref14375" refString="Schuller, M. &amp; Hilbig, B. (2007) Three new species of the genus Oligobregma (Polychaeta, Scalibregmatidae) from the Scotia and Weddell Seas (Antarctica). Zootaxa, 1391, 35 - 45. https: // doi. org / 10.11646 / zootaxa. 1391.1.2" type="journal article" year="2007">Schüller &amp; Hilbig, 2007</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C114D623E026F73F8F3B5C30125FD06" authority="Wiklund et al., 2019" authorityName="Wiklund" authorityYear="2019" box="[224,619,691,717]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="brasierae">
<emphasis id="B965EAF33E026F73F8F3B5C3023FFD06" box="[224,369,691,717]" italics="true" pageId="7" pageNumber="87">O. brasierae</emphasis>
<bibRefCitation id="EF804B103E026F73F968B5C30125FD06" author="Wiklund, H. &amp; Glover, A. G. &amp; Drennan, R. &amp; Rabone, M. &amp; Dahlgren, T. G." box="[379,619,691,717]" pageId="7" pageNumber="87" pagination="1 - 82" refId="ref14429" refString="Wiklund, H., Neal, l., Glover, A. G., Drennan, R., Rabone, M. &amp; Dahlgren, T. G. (2019) Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae. Zookeys, 883, 1 - 82. https: // doi. org / 10.3897 / zookeys. 883.36193" type="journal article" year="2019">
Wiklund
<emphasis id="B965EAF33E026F73F9F5B5C3016CFD06" box="[486,546,691,717]" italics="true" pageId="7" pageNumber="87">et al.</emphasis>
, 2019
</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C114D623E026F73FA6FB5C30089FD06" authority="Wiklund et al., 2019" authorityName="Wiklund" authorityYear="2019" box="[636,967,691,717]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="tani">
<emphasis id="B965EAF33E026F73FA6FB5C30183FD07" box="[636,717,691,717]" italics="true" pageId="7" pageNumber="87">O. tani</emphasis>
<bibRefCitation id="EF804B103E026F73FAC4B5C30089FD06" author="Wiklund, H. &amp; Glover, A. G. &amp; Drennan, R. &amp; Rabone, M. &amp; Dahlgren, T. G." box="[727,967,691,717]" pageId="7" pageNumber="87" pagination="1 - 82" refId="ref14429" refString="Wiklund, H., Neal, l., Glover, A. G., Drennan, R., Rabone, M. &amp; Dahlgren, T. G. (2019) Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae. Zookeys, 883, 1 - 82. https: // doi. org / 10.3897 / zookeys. 883.36193" type="journal article" year="2019">
Wiklund
<emphasis id="B965EAF33E026F73FB51B5C30030FD06" box="[834,894,691,717]" italics="true" pageId="7" pageNumber="87">et al.</emphasis>
, 2019
</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="4C114D623E026F73FC10B5C3066EFD06" authority="Blake, 2023" authorityName="Blake" authorityYear="2023" box="[1027,1312,691,717]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="bathyala">
<emphasis id="B965EAF33E026F73FC10B5C307C5FD06" box="[1027,1163,691,717]" italics="true" pageId="7" pageNumber="87">O. bathyala</emphasis>
<bibRefCitation id="EF804B103E026F73FC86B5C3066EFD06" author="Blake, J. A." box="[1173,1312,691,717]" pageId="7" pageNumber="87" pagination="271 - 298" refId="ref12725" refString="Blake, J. A. (2023) New species of Scalibregmatidae (Annelida) from slope and abyssal depths off eastern Australia. Records of the Australian Museum, 75 (3), 271 - 298. https: // doi. org / 10.3853 / j. 2201 - 4349.75.2023.1827" type="journal article" year="2023">Blake, 2023</bibRefCitation>
</taxonomicName>
by having acicular spines on chaetigers 1‒4 but they differ in several aspects.
<taxonomicName id="4C114D623E026F73FB89B5A70799FD3A" authorityName="Schuller &amp; Hilbig" authorityYear="2007" box="[922,1239,727,753]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="quadrispinosa">
<emphasis id="B965EAF33E026F73FB89B5A70799FD3A" box="[922,1239,727,753]" italics="true" pageId="7" pageNumber="87">Oligobregma quadrispinosa</emphasis>
</taxonomicName>
presents acicular spines only on notopodia from chaetigers 1‒4, and lyrate chaetae from chaetiger 5; whereas
<taxonomicName id="4C114D623E026F73FCADB58B0676FCDF" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[1214,1336,763,789]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73FCADB58B0676FCDF" box="[1214,1336,763,789]" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FD52B58B06D2FCDE" bold="true" box="[1345,1436,763,789]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FD52B58B06D2FCDE" box="[1345,1436,763,789]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
presents acicular spines in both rami from chaetiger 1‒3, lacking these spines in chaetiger 3 only on neuropodia, and its lyrate chaetae are present from chaetiger 4 on notopodia and 3 on neuropodia.
</paragraph>
<paragraph id="8BAE36E13E026F73F8D4B4170731FBFE" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
<taxonomicName id="4C114D623E026F73F8D4B4170281FC4A" box="[199,463,871,897]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="brasierae">
<emphasis id="B965EAF33E026F73F8D4B4170281FC4A" box="[199,463,871,897]" italics="true" pageId="7" pageNumber="87">Oligobregma brasierae</emphasis>
</taxonomicName>
presents acicular spines in both noto and neuropodia from chaetigers 1‒4, parapodial cirri with gold pigmented granular glands within, and lyrate chaetae from chaetiger
<quantity id="4CE99B043E026F73FC77B4FA07DFFC6E" box="[1124,1169,906,933]" metricMagnitude="-1" metricUnit="m" metricValue="1.27" pageId="7" pageNumber="87" unit="in" value="5.0">5 in</quantity>
both rami; whereas
<taxonomicName id="4C114D623E026F73FD92B4FB03A3FC03" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73FD92B4FB03A3FC03" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73F8E0B4DF0202FC02" bold="true" box="[243,332,943,969]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73F8E0B4DF0202FC02" box="[243,332,943,969]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
does not present these acicular spines on neuropodia of chaetiger 3, has strong black tubular glands within parapodial cirri and lyrate chaetae from chaetiger 4 on notopodia and 3 on neuropodia.
<taxonomicName id="4C114D623E026F73FCC0B4A306D3FC27" box="[1235,1437,979,1005]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="tani">
<emphasis id="B965EAF33E026F73FCC0B4A306D3FC27" box="[1235,1437,979,1005]" italics="true" pageId="7" pageNumber="87">Oligobregma tani</emphasis>
</taxonomicName>
possess acicular spines only in notopodia from chaetiger 1‒4; whereas
<taxonomicName id="4C114D623E026F73FBD0B4870772FBDB" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[963,1084,1015,1041]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73FBD0B4870772FBDB" box="[963,1084,1015,1041]" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FC56B48707EEFBDA" bold="true" box="[1093,1184,1015,1041]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FC56B48707EEFBDA" box="[1093,1184,1015,1041]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
has acicular spines in both rami from chaetigers 1‒3 and more numerous lyrate chaetae on midbody chaetigers.
</paragraph>
<paragraph id="8BAE36E13E026F73F8D4B34F001BFAC6" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
<taxonomicName id="4C114D623E026F73F8D4B34F028AFB92" authorityName="Blake" authorityYear="2023" box="[199,452,1087,1113]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="bathyala">
<emphasis id="B965EAF33E026F73F8D4B34F028AFB92" box="[199,452,1087,1113]" italics="true" pageId="7" pageNumber="87">Oligobregma bathyala</emphasis>
</taxonomicName>
is the most similar species when compared to
<taxonomicName id="4C114D623E026F73FBD4B34F0770FB93" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[967,1086,1087,1113]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73FBD4B34F0770FB93" box="[967,1086,1087,1113]" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FC57B34F07D3FB92" bold="true" box="[1092,1181,1087,1113]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FC57B34F07D3FB92" box="[1092,1181,1087,1113]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
. However, this species presents short spinous chaetae on notopodia of the chaetigers 1‒2, parapodia emerging as long conical lobes from midbody chaetigers, with noto and neuropodial lobes in the same size and shape; whereas
<taxonomicName id="4C114D623E026F73FC99B3F7064CFB6B" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[1162,1282,1159,1185]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73FC99B3F7064CFB6B" box="[1162,1282,1159,1185]" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FD1AB3F7062CFB6A" bold="true" box="[1289,1378,1159,1185]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FD1AB3F7062CFB6A" box="[1289,1378,1159,1185]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
does not present spinous chaetae in any chaetiger and its parapodial lobes are asymmetrical, “knife-like”, with notopodial lobe two times longer and larger than neuropodial lobe. Additionally, in
<taxonomicName id="4C114D623E026F73FBD5B3BF0705FB22" authorityName="Blake" authorityYear="2023" box="[966,1099,1231,1257]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="bathyala">
<emphasis id="B965EAF33E026F73FBD5B3BF0705FB22" box="[966,1099,1231,1257]" italics="true" pageId="7" pageNumber="87">O. bathyala</emphasis>
</taxonomicName>
the lyrate chaetae tyne’s ratio is greater than
<taxonomicName id="4C114D623E026F73F92EB38302FBFAC7" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[317,437,1267,1293]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73F92EB38302FBFAC7" box="[317,437,1267,1293]" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73F9AFB383015BFAC6" bold="true" box="[444,533,1267,1293]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73F9AFB383015BFAC6" box="[444,533,1267,1293]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, which are almost subequal.
</paragraph>
<paragraph id="8BAE36E13E026F73F8D4B26700ACFA2E" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
Finally, the new species
<taxonomicName id="4C114D623E026F73F9C5B2670100FAFB" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[470,590,1303,1329]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73F9C5B2670100FAFB" box="[470,590,1303,1329]" italics="true" pageId="7" pageNumber="87">O. nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FA47B26701E2FAFA" bold="true" box="[596,684,1303,1329]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FA47B26701E2FAFA" box="[596,684,1303,1329]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
presents an unusual annulation pattern, firstly described by
<bibRefCitation id="EF804B103E026F73FD54B2670268FA9E" author="Bakken, T. &amp; Oug, E. &amp; Kongsrud, J. A." pageId="7" pageNumber="87" pagination="101 - 117" refId="ref12392" refString="Bakken, T., Oug, E. &amp; Kongsrud, J. A. (2014) Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp. Zootaxa, 3753 (2), 101 - 117. https: // doi. org / 10.11646 / zootaxa. 3753.2.1" type="journal article" year="2014">
Bakken
<emphasis id="B965EAF33E026F73F884B24B039CFA9E" box="[151,210,1339,1365]" italics="true" pageId="7" pageNumber="87">et al.</emphasis>
(2014)
</bibRefCitation>
on the redescription of
<taxonomicName id="4C114D623E026F73FA2FB24B077CFA9E" authority="(Hansen, 1879)" baseAuthorityName="Hansen" baseAuthorityYear="1879" box="[572,1074,1339,1365]" class="Polychaeta" family="Scalibregmatidae" genus="Pseudoscalibregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="parvum">
<emphasis id="B965EAF33E026F73FA2FB24B0039FA9F" box="[572,887,1339,1365]" italics="true" pageId="7" pageNumber="87">Pseudoscalibregma parvum</emphasis>
(
<bibRefCitation id="EF804B103E026F73FB94B24B0767FA9E" author="Hansen, G. A." box="[903,1065,1339,1365]" pageId="7" pageNumber="87" pagination="1 - 17" refId="ref13067" refString="Hansen, G. A. (1879) Annelider fra den norske Nordhavsexpedition i 1876. Nyt Magazin for Naturvidenskaberne. Christiania, 24 (1), 1 - 17." type="journal article" year="1879">Hansen, 1879</bibRefCitation>
)
</taxonomicName>
. The pattern consists of several secondary annuli emerging directly from the parapodial lobe plus an intermediate annulation separating the chaetiger from its superior and inferior neighbors (
<figureCitation id="132A2A643E026F73FA70B2F301F3FA56" box="[611,701,1411,1437]" captionStart="FIGURE 3" captionStartId="6.[151,250,1816,1840]" captionTargetBox="[154,1434,814,1791]" captionTargetId="figure-282@6.[151,1436,811,1793]" captionTargetPageId="6" captionText="FIGURE 3. SEM of Oligobregma nonatoi sp. nov. specimen A. Anterior body in ventral view. B. Acicular spines. C. Lyrate chaeta. Abbreviations: As = Acicular spines; iA = Intermediate annulation; Pe = Peristomium; plA = Parapodial lobe’s annuli; Pr = Prostomium; 1stPd = Ventral groove first pad; 2ndPd = Ventral groove second pad." figureDoi="http://doi.org/10.5281/zenodo.10808061" httpUri="https://zenodo.org/record/10808061/files/figure.png" pageId="7" pageNumber="87">Fig. 3A</figureCitation>
). This intermediate annulation is not connected to any parapodial lobe and may cause confusion when identifying poorly preserved specimens in secondary annuli counting, which is an important feature to distinguish species within
<taxonomicName id="4C114D623E026F73FAD5B2BB00C6FA2E" authorityName="Malmgren" authorityYear="1867" box="[710,904,1483,1509]" class="Polychaeta" family="Scalibregmatidae" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="family">Scalibregmatidae</taxonomicName>
genera.
</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E026F73F8D4B29E012FF99A" pageId="7" pageNumber="87" type="distribution">
<paragraph id="8BAE36E13E026F73F8D4B29E012FF99A" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
<emphasis id="B965EAF33E026F73F8D4B29E022FF9C3" bold="true" box="[199,353,1518,1544]" pageId="7" pageNumber="87">Distribution.</emphasis>
<taxonomicName id="4C114D623E026F73F97BB29F0117F9C3" authority="Mendes &amp; Paiva &amp; Rizzo, 2024" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[360,601,1519,1545]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi" status="sp. nov.">
<emphasis id="B965EAF33E026F73F97BB29F0117F9C3" box="[360,601,1519,1545]" italics="true" pageId="7" pageNumber="87">Oligobregma nonatoi</emphasis>
</taxonomicName>
<emphasis id="B965EAF33E026F73FA73B29F01F4F9C2" bold="true" box="[608,698,1519,1545]" pageId="7" pageNumber="87">
<taxonomicNameLabel id="A25657883E026F73FA73B29F01F4F9C2" box="[608,698,1519,1545]" pageId="7" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
was found living in low densities on continental slope of
<collectingRegion id="49D5F8033E026F73FD57B29F0394F9E6" country="Brazil" name="Espirito Santo" pageId="7" pageNumber="87">Espírito Santo</collectingRegion>
, Campos and Santos Brazilian oceanographic basins from a bathymetric range of 700 to 3000 meters deep, predominantly among muddy sediments.
</paragraph>
</subSubSection>
<subSubSection id="C30B656A3E026F73F8D4B12B07BAF952" pageId="7" pageNumber="87" type="etymology">
<paragraph id="8BAE36E13E026F73F8D4B12B07BAF952" blockId="7.[151,1437,151,1689]" pageId="7" pageNumber="87">
<emphasis id="B965EAF33E026F73F8D4B12B0200F9BE" bold="true" box="[199,334,1627,1653]" pageId="7" pageNumber="87">Etymology.</emphasis>
The specific epithet
<taxonomicName id="4C114D623E026F73FA2DB12B01EFF9BF" authorityName="Mendes &amp; Paiva &amp; Rizzo" authorityYear="2024" box="[574,673,1627,1653]" class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" kingdom="Animalia" pageId="7" pageNumber="87" phylum="Annelida" rank="species" species="nonatoi">
“
<emphasis id="B965EAF33E026F73FA58B12B01EFF9BF" box="[587,673,1627,1652]" italics="true" pageId="7" pageNumber="87">nonatoi</emphasis>
</taxonomicName>
” was chosen to honor Professor Dr. Edmundo Ferraz Nonato from
<collectingRegion id="49D5F8033E026F73F884B10F0209F952" box="[151,327,1663,1689]" country="Brazil" name="Sao Paulo" pageId="7" pageNumber="87">São Paulo State</collectingRegion>
University (USP), for his legacy as the “father” of the Brazilian Polychaete School.
</paragraph>
</subSubSection>
</treatment>
</document>
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