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<document id="EE3E5CFA92A96F572106EF646D92C0D6" ID-DOI="10.11646/zootaxa.5383.2.1" ID-ISSN="1175-5326" ID-Zenodo-Dep="10350586" ID-ZooBank="996315A6-A209-4DF7-B59C-0B7662741F37" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="carolina" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="carolina" IM.taxonomicNames_approvedBy="carolina" IM.treatments_approvedBy="carolina" checkinTime="1702283285625" checkinUser="plazi" docAuthor="Brito, Ayrton Do Ramo &amp; Serejo, Cristiana Silveira" docDate="2023" docId="03FA634CFFEFFFD54FDD96D9A44EFE16" docLanguage="en" docName="zootaxa.5383.2.1.pdf" docOrigin="Zootaxa 5383 (2)" docSource="https://www.mapress.com/zt/article/download/zootaxa.5383.2.1/52444" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Leuconidae Sars 1878" docType="treatment" docVersion="4" lastPageNumber="130" masterDocId="FFC31B34FFF3FFC84F4A9606A671FFBB" masterDocTitle="Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast" masterLastPageNumber="134" masterPageNumber="101" pageNumber="129" updateTime="1702646215252" updateUser="carolina" zenodo-license-document="CLOSED">
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<mods:title id="7B78EF4CCAB5DF1F36EEECF634EEB3CD">Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast</mods:title>
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<mods:namePart id="F9E9841FB868D3563ADAD25FDD7100A8">Brito, Ayrton Do Ramo</mods:namePart>
<mods:affiliation id="E2F04C872507C1C8F53FF54A53C7FBA2">Setor de Carcinologia, Museu Nacional / Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão s / n, 20940 - 040, Rio de Janeiro, Brazil &amp; Programa de Pós-graduação em Ciências Biológicas (Zoologia), Museu Nacional / Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão s / n, 20940 - 040, Rio de Janeiro, Brazil</mods:affiliation>
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<mods:namePart id="574577DCAA5B69501A1FA3C2A6781EFF">Serejo, Cristiana Silveira</mods:namePart>
<mods:affiliation id="DDDA47DE6054DE0940F8B7A66F4007FD">Setor de Carcinologia, Museu Nacional / Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão s / n, 20940 - 040, Rio de Janeiro, Brazil &amp; Programa de Pós-graduação em Ciências Biológicas (Zoologia), Museu Nacional / Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão s / n, 20940 - 040, Rio de Janeiro, Brazil</mods:affiliation>
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<mods:date id="815F3BD224FDBAF03A3136D1B8A6466C">2023</mods:date>
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<treatment id="03FA634CFFEFFFD54FDD96D9A44EFE16" ID-DOI="http://doi.org/10.5281/zenodo.10350662" ID-Zenodo-Dep="10350662" LSID="urn:lsid:plazi:treatment:03FA634CFFEFFFD54FDD96D9A44EFE16" httpUri="http://treatment.plazi.org/id/03FA634CFFEFFFD54FDD96D9A44EFE16" lastPageId="29" lastPageNumber="130" pageId="28" pageNumber="129">
<subSubSection id="C34981D1FFEFFFD44FDD96D9A47FFF42" box="[151,526,223,249]" pageId="28" pageNumber="129" type="nomenclature">
<paragraph id="8BECD25AFFEFFFD44FDD96D9A47FFF42" blockId="28.[151,526,223,249]" box="[151,526,223,249]" pageId="28" pageNumber="129">
<heading id="D0A46536FFEFFFD44FDD96D9A47FFF42" bold="true" box="[151,526,223,249]" fontSize="11" level="1" pageId="28" pageNumber="129" reason="1">
<emphasis id="B9270E48FFEFFFD44FDD96D9A47FFF42" bold="true" box="[151,526,223,249]" pageId="28" pageNumber="129">
West Atlantic
<taxonomicName id="4C53A9D9FFEFFFD44E0D96D9A7A9FF42" ID-CoL="7NJDS" authorityName="Sars" authorityYear="1878" box="[327,472,223,249]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
gap
</emphasis>
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<subSubSection id="C34981D1FFEFFFD54FDD9721A44EFE16" lastPageId="29" lastPageNumber="130" pageId="28" pageNumber="129" type="discussion">
<paragraph id="8BECD25AFFEFFFD44FDD9721A79EFE16" blockId="28.[151,1437,295,898]" pageId="28" pageNumber="129">
Until the present study, there were no proper taxonomic records of family
<taxonomicName id="4C53A9D9FFEFFFD44C9E9721A226FEFA" authorityName="Sars" authorityYear="1878" box="[980,1111,295,321]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
for the Brazilian coast. They appear only in ecological studies, where the specimens were identified only at genus level (
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<emphasis id="B9270E48FFEFFFD44BD1974AA29CFEDE" box="[1179,1261,332,357]" italics="true" pageId="28" pageNumber="129">Leucon</emphasis>
</taxonomicName>
and
<taxonomicName id="4C53A9D9FFEFFFD44A6E974DA3E2FEDE" authorityName="Norman" authorityYear="1867" box="[1316,1427,331,357]" class="Malacostraca" family="Leuconidae" genus="Eudorella" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="genus">
<emphasis id="B9270E48FFEFFFD44A6E974DA3E2FEDE" box="[1316,1427,331,357]" italics="true" pageId="28" pageNumber="129">Eudorella</emphasis>
</taxonomicName>
) or only into family (
<taxonomicName id="4C53A9D9FFEFFFD44E339769A78FFE32" authorityName="Sars" authorityYear="1878" box="[377,510,367,393]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
A and
<taxonomicName id="4C53A9D9FFEFFFD44D069769A4BEFE32" authorityName="Sars" authorityYear="1878" box="[588,719,367,393]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
B) (
<bibRefCitation id="EFC2AFABFFEFFFD44C4A9769A255FE32" author="Bacescu, M. &amp; Petrescu, I." box="[768,1060,367,394]" pageId="28" pageNumber="129" pagination="327 - 340" refId="ref19978" refString="Bacescu, M. &amp; Petrescu, I. (1991) New Cumacea (Crustacea, Peracarida) from the littoral waters of Brazil. Travaux du Museum d'Histoire naturelle &quot; Grigore Antipa &quot;, 31, 327 - 340." type="journal article" year="1991">Băcescu &amp; Petrescu 1991</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44B7A9776A3E6FE32" author="Dos Santos, M. F. L. &amp; Pires-Vanin, A. M. S." box="[1072,1431,367,394]" pageId="28" pageNumber="129" pagination="15 - 25" refId="ref20606" refString="Dos Santos, M. F. L. &amp; Pires-Vanin, A. M. S. (1999) The Cumacea community of the southeastern Brazilian Continental Shelf: structure and dynamics. Scientia Marina, 63 (1), 15 - 25. https: // doi. org / 10.3989 / scimar. 1999.63 n 115" type="journal article" year="1999">Dos Santos &amp; Pires-Vanin 1999</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44FDD9795A795FE16" author="Cristales, P. A. &amp; Pires-Vanin, A. M. S." box="[151,484,403,429]" pageId="28" pageNumber="129" pagination="103 - 116" refId="ref20501" refString="Cristales, P. A. &amp; Pires-Vanin, A. M. S. (2014) Structuring factors of the Cumacean communities of the continental shelf of southeastern Brazil. Brazilian Journal of Oceanography, 62 (2), 103 - 116. https: // doi. org / 10.1590 / S 1679 - 87592014056206202" type="journal article" year="2014">Cristales &amp; Pires-Vanin 2014</bibRefCitation>
).
</paragraph>
<paragraph id="8BECD25AFFEFFFD44F8D97B1A34DFC3A" blockId="28.[151,1437,295,898]" pageId="28" pageNumber="129">
Leuconids occur in all oceans (
<bibRefCitation id="EFC2AFABFFEFFFD44D6997B1A544FE6A" author="Watling, L. &amp; Gerken, S." box="[547,821,439,465]" pageId="28" pageNumber="129" refId="ref22566" refString="Watling, L. &amp; Gerken, S. (2023) World Cumacea Database. Leuconidae Sars, 1878. Accessed through: World Register of Marine Species. Available from: https: // www. marinespecies. org / aphia. php? p = taxdetails &amp; id = 110382 (accessed 1 August 2023)" type="url" year="2023">Watling &amp; Gerken 2023</bibRefCitation>
) and are also commonly found in the deep-sea zone (&gt;
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) (
<bibRefCitation id="EFC2AFABFFEFFFD44FB097DDA7B8FE4E" author="Heard, R. W. &amp; Roccatagliata, D. &amp; Petrescu, I." box="[250,457,475,501]" pageId="28" pageNumber="129" refId="ref21032" refString="Heard, R. W., Roccatagliata, D. &amp; Petrescu, I., (2007) An Illustrated Guide to Cumacea (Crustacea: Malacostraca: Peracarida) from Florida Coastal and Shelf Waters to Depths of 100 M. Department of Environmental Protection, Tallahasee, 164 pp." type="book" year="2007">
<collectingCountry id="F34492CAFFEFFFD44FB097DDA731FE4E" box="[250,320,475,501]" name="Heard Island and McDonald Islands" pageId="28" pageNumber="129">Heard</collectingCountry>
<emphasis id="B9270E48FFEFFFD44E0397DAA7F2FE4E" box="[329,387,475,501]" italics="true" pageId="28" pageNumber="129">et al.</emphasis>
2007
</bibRefCitation>
). Records from the NW Atlantic are from Guiana-Suriname Basin to
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coast (
<bibRefCitation id="EFC2AFABFFEFFFD44FD597F9A731FDA2" author="Bishop, J. D. D." box="[159,320,511,537]" pageId="28" pageNumber="129" pagination="353 - 409" refId="ref20131" refString="Bishop, J. D. D. (1981 a) A revised definition of the genus Epileucon Jones (Crustacea, Cumacea) with descriptions of species from the deep Atlantic. Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 291 (1052), 353 - 409. https: // doi. org / 10.1098 / rstb. 1981.0003" type="journal article" year="1981">Bishop 1981a</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44E0497F9A7E6FDA2" author="Bishop, J. D. D." box="[334,407,511,537]" pageId="28" pageNumber="129" pagination="144 - 159" refId="ref20200" refString="Bishop, J. D. D. (1981 b) Two new leuconids (Peracarida, Cumacea) of widespread occurrence in the deep Atlantic. Crustaceana, 40 (2), 144 - 159. https: // doi. org / 10.1163 / 156854081 x 00552" type="journal article" year="1981">1981b</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44EEF97F9A79CFDA2" author="Bishop, J. D. D." box="[421,493,511,537]" pageId="28" pageNumber="129" pagination="345 - 357" refId="ref20251" refString="Bishop, J. D. D. (1982 a) Three new species of the genus Leucon Kroyer, 1846 (Crustacea: Cumacea) from the continental slope off Surinam. Zoological Journal of the Linnean Society, 74 (4), 345 - 357. https: // doi. org / 10.1111 / j. 1096 - 3642.1982. tb 01157. x" type="journal article" year="1982">1982a</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44EB09406A4E3FDA2" author="Hansen, H. J." box="[506,658,511,538]" pageId="28" pageNumber="129" pagination="1 - 86" refId="ref20949" refString="Hansen, H. J. (1920) The Danish Ingolf Expedition. Crustacea Malacostraca 4. Zoological Museum of Copenhagen University, 3, 1 - 86." type="journal article" year="1920">Hansen 1920</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44DD597F9A51BFDA2" author="Heard, R. W. &amp; Roccatagliata, D. &amp; Petrescu, I." box="[671,874,511,537]" pageId="28" pageNumber="129" refId="ref21032" refString="Heard, R. W., Roccatagliata, D. &amp; Petrescu, I., (2007) An Illustrated Guide to Cumacea (Crustacea: Malacostraca: Peracarida) from Florida Coastal and Shelf Waters to Depths of 100 M. Department of Environmental Protection, Tallahasee, 164 pp." type="book" year="2007">
<collectingCountry id="F34492CAFFEFFFD44DD597F9A492FDA2" box="[671,739,511,537]" name="Heard Island and McDonald Islands" pageId="28" pageNumber="129">Heard</collectingCountry>
<emphasis id="B9270E48FFEFFFD44DA79406A556FDA2" box="[749,807,511,537]" italics="true" pageId="28" pageNumber="129">et al.</emphasis>
2007
</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44C329406A2F7FDA2" author="Petrescu, I. &amp; Heard, R." box="[888,1158,511,538]" pageId="28" pageNumber="129" pagination="71 - 90" refId="ref21972" refString="Petrescu, I. &amp; Heard, R. (2010) New leuconids from the Gulf of Mexico (Crustacea: Cumacea: Leuconidae). Travaux du Museum National d'Histoire Naturelle &quot; Grigore Antipa &quot;, 53 (1), 71 - 90. https: // doi. org / 10.2478 / v 10191 - 010 - 0005 - 8" type="journal article" year="2010">
Petrescu &amp;
<collectingCountry id="F34492CAFFEFFFD44CB597F9A232FDA2" box="[1023,1091,511,537]" name="Heard Island and McDonald Islands" pageId="28" pageNumber="129">Heard</collectingCountry>
2010
</bibRefCitation>
) and in SW Atlantic are restricted to the Argentinian and Uruguayan coast (
<bibRefCitation id="EFC2AFABFFEFFFD44DAB9425A5F6FD86" author="Petrescu, I." box="[737,903,547,573]" pageId="28" pageNumber="129" pagination="375 - 386" refId="ref21818" refString="Petrescu, I. (1991) Contribution to the knowledge of genus Eudorella Norman, 1867 (Crustacea, Cumacea, Leuconidae) with description of two new species Eudorella bacescui n. sp. and Eudorella menziesi n. sp. Travaux du Museum National d'Histoire Naturelle &quot; Grigore Antipa &quot;, 31, 375 - 386." type="journal article" year="1991">Petrescu 1991</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44CDF9425A5A0FD86" author="Petrescu, I." box="[917,977,547,573]" pageId="28" pageNumber="129" pagination="325 - 345" refId="ref21878" refString="Petrescu, I. (1994) Contributions to the knowledge of Leucon genus (Crustacea: Cumacea) from the waters of South America. Travaux du Museum d'Histoire naturelle &quot; Grigore Antipa &quot;, 34, 325 - 345." type="journal article" year="1994">1994</bibRefCitation>
). With the present study new records of the family go further north in the Brazilian coast until
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(Espírito Santo state) and south until
<geoCoordinate id="EE67B49DFFEFFFD44A4C9441A34CFDDA" box="[1286,1341,583,609]" degrees="27" direction="south" orientation="latitude" pageId="28" pageNumber="129" precision="55555" value="-27.0">27°S</geoCoordinate>
(Paraná state), filling the gap in this area. According to the bathymetric distribution, only
<taxonomicName id="4C53A9D9FFEFFFD44B03946DA334FD3E" authority="Brito &amp; Serejo, 2023" authorityName="Brito &amp; Serejo" authorityYear="2023" box="[1097,1349,619,645]" class="Malacostraca" family="Leuconidae" genus="Gyneleucon" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="tripedium" status="gen. et sp. nov.">
<emphasis id="B9270E48FFEFFFD44B03946DA334FD3E" box="[1097,1349,619,645]" italics="true" pageId="28" pageNumber="129">Gyneleucon tripedium</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A214B333FFEFFFD44A05946AA685FD12" pageId="28" pageNumber="129" rank="species">
gen. et
<emphasis id="B9270E48FFEFFFD44FDD9489A685FD12" bold="true" box="[151,244,655,681]" pageId="28" pageNumber="129">sp. nov.</emphasis>
</taxonomicNameLabel>
(
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) is restricted to shallow water.
<taxonomicName id="4C53A9D9FFEFFFD44D959489A5DEFD12" authority="Brito &amp; Serejo, 2023" authorityName="Brito &amp; Serejo" authorityYear="2023" box="[735,943,655,681]" class="Malacostraca" family="Leuconidae" genus="Eudorella" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="helenae" status="sp. nov.">
<emphasis id="B9270E48FFEFFFD44D959489A5DEFD12" box="[735,943,655,681]" italics="true" pageId="28" pageNumber="129">Eudorella helenae</emphasis>
</taxonomicName>
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<taxonomicNameLabel id="A214B333FFEFFFD44CF09489A267FD12" box="[954,1046,655,681]" pageId="28" pageNumber="129" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
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) occurs from shallow water to the upper slope, while
<taxonomicName id="4C53A9D9FFEFFFD44D4394B2A514FD76" authority="Brito &amp; Serejo, 2023" authorityName="Brito &amp; Serejo" authorityYear="2023" box="[521,869,691,717]" class="Malacostraca" family="Leuconidae" genus="Leucon" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="rhuanae" status="sp. nov." subGenus="Alytoleucon">
<emphasis id="B9270E48FFEFFFD44D4394B2A42AFD76" box="[521,603,692,717]" italics="true" pageId="28" pageNumber="129">Leucon</emphasis>
(
<emphasis id="B9270E48FFEFFFD44D2594B5A484FD76" box="[623,757,691,717]" italics="true" pageId="28" pageNumber="129">Alytoleucon</emphasis>
)
<emphasis id="B9270E48FFEFFFD44C4294B5A514FD76" box="[776,869,691,717]" italics="true" pageId="28" pageNumber="129">rhuanae</emphasis>
</taxonomicName>
<emphasis id="B9270E48FFEFFFD44C2594B5A5BAFD76" bold="true" box="[879,971,691,717]" pageId="28" pageNumber="129">
<taxonomicNameLabel id="A214B333FFEFFFD44C2594B5A5BAFD76" box="[879,971,691,717]" pageId="28" pageNumber="129" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<quantity id="4CAB7FBFFFEFFFD44C9794B5A20EFD76" box="[989,1151,691,718]" metricMagnitude="3" metricUnit="m" metricValue="1.761" metricValueMax="2.501" metricValueMin="1.021" pageId="28" pageNumber="129" unit="m" value="1761.0" valueMax="2501.0" valueMin="1021.0">1021–2501 m</quantity>
),
<taxonomicName id="4C53A9D9FFEFFFD44BDC94B2A7E1FD4A" authority="Brito &amp; Serejo, 2023" authorityName="Brito &amp; Serejo" authorityYear="2023" class="Malacostraca" family="Leuconidae" genus="Leucon" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="pseudograndidentatus" status="sp. nov." subGenus="Crymoleucon">
<emphasis id="B9270E48FFEFFFD44BDC94B2A299FD76" box="[1174,1256,692,717]" italics="true" pageId="28" pageNumber="129">Leucon</emphasis>
(
<emphasis id="B9270E48FFEFFFD44BB694B5A3E2FD76" box="[1276,1427,691,717]" italics="true" pageId="28" pageNumber="129">Crymoleucon</emphasis>
)
<emphasis id="B9270E48FFEFFFD44FDD94D1A7E1FD4A" box="[151,400,727,753]" italics="true" pageId="28" pageNumber="129">pseudograndidentatus</emphasis>
</taxonomicName>
<emphasis id="B9270E48FFEFFFD44EDD94D1A781FD4A" bold="true" box="[407,496,727,753]" pageId="28" pageNumber="129">
<taxonomicNameLabel id="A214B333FFEFFFD44EDD94D1A781FD4A" box="[407,496,727,753]" pageId="28" pageNumber="129" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<quantity id="4CAB7FBFFFEFFFD44EB494D1A4FCFD4A" box="[510,653,727,753]" metricMagnitude="3" metricUnit="m" metricValue="1.0559999999999998" metricValueMax="1.7309999999999999" metricValueMin="0.381" pageId="28" pageNumber="129" unit="m" value="1056.0" valueMax="1731.0" valueMin="381.0">381–1731 m</quantity>
) and
<taxonomicName id="4C53A9D9FFEFFFD44D8194DEA223FD4A" authority="Brito &amp; Serejo, 2023" authorityName="Brito &amp; Serejo" authorityYear="2023" box="[715,1106,727,753]" class="Malacostraca" family="Leuconidae" genus="Leucon" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="watlingi" status="sp. nov." subGenus="Macrauloleucon">
<emphasis id="B9270E48FFEFFFD44D8194DEA56CFD4A" box="[715,797,728,753]" italics="true" pageId="28" pageNumber="129">Leucon</emphasis>
(
<emphasis id="B9270E48FFEFFFD44C6794D1A597FD4A" box="[813,998,727,753]" italics="true" pageId="28" pageNumber="129">Macrauloleucon</emphasis>
)
<emphasis id="B9270E48FFEFFFD44CBC94D1A223FD4A" box="[1014,1106,727,753]" italics="true" pageId="28" pageNumber="129">watlingi</emphasis>
</taxonomicName>
<emphasis id="B9270E48FFEFFFD44B1394D1A2C3FD4A" bold="true" box="[1113,1202,727,753]" pageId="28" pageNumber="129">
<taxonomicNameLabel id="A214B333FFEFFFD44B1394D1A2C3FD4A" box="[1113,1202,727,753]" pageId="28" pageNumber="129" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(
<quantity id="4CAB7FBFFFEFFFD44B8A94D1A33EFD4A" box="[1216,1359,727,753]" metricMagnitude="3" metricUnit="m" metricValue="1.691" metricValueMax="3.001" metricValueMin="0.381" pageId="28" pageNumber="129" unit="m" value="1691.0" valueMax="3001.0" valueMin="381.0">381–3001 m</quantity>
) occur solely on the slope, being the latter with a wider bathymetric range (
<figureCitation id="1368CEDFFFEFFFD44CC994FDA5A7FCAE" box="[899,982,763,789]" captionStart="FIGURE 16" captionStartId="28.[152,255,1574,1598]" captionTargetBox="[151,1435,921,1550]" captionTargetId="figure-317@28.[151,1435,921,1550]" captionTargetPageId="28" captionText="FIGURE 16. Bathymetric range of species of Leuconidae along the Brazilian coast (18° S–27° S) based on samples listed in Table 1." figureDoi="http://doi.org/10.5281/zenodo.10350660" httpUri="https://zenodo.org/record/10350660/files/figure.png" pageId="28" pageNumber="129">Fig. 16</figureCitation>
). The lack of
<taxonomicName id="4C53A9D9FFEFFFD44B2194FDA29FFCAE" authorityName="Sars" authorityYear="1878" box="[1131,1262,763,789]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
species records for the Brazilian coast might be explained by taxonomic impediment (
<bibRefCitation id="EFC2AFABFFEFFFD44CF09519A2A2FC82" author="Marques, A. C. &amp; Lamas, C. J. E." box="[954,1235,799,826]" pageId="28" pageNumber="129" pagination="139 - 174" refId="ref21543" refString="Marques, A. C. &amp; Lamas, C. J. E. (2006) Taxonomia zoologica no Brasil: estado da arte, expectativas e sugestoes de acoes futuras. Papeis Avulsos de Zoologia, Sao Paulo, 46 (13), 139 - 174. https: // doi. org / 10.1590 / s 0031 - 10492006001300001" type="journal article" year="2006">Marques &amp; Lamas 2006</bibRefCitation>
) or by the depths where leuconids generally live. The group successfully colonized the deep-sea, a difficult to reach and less sampled environment when compared to the continental shelf (
<bibRefCitation id="EFC2AFABFFEFFFD44DB99561A266FC39" author="Muhlenhardt-Siegel, U." box="[755,1047,871,898]" pageId="28" pageNumber="129" pagination="131 - 149" refId="ref21607" refString="Muhlenhardt-Siegel, U. (2005) Cumacea species (Crustacea: Peracarida) from the deep-sea expedition DIVA- 1 with RV &quot; Meteor &quot; to the Angola Basin in July 2000. Family Leuconidae. Organisms Diversity &amp; Evolution, 5, 131 - 149. https: // doi. org / 10.1016 / j. ode. 2004.10.009" type="journal article" year="2005">Mühlenhardt-Siegel 2005</bibRefCitation>
; 2011;
<bibRefCitation id="EFC2AFABFFEFFFD44B229561A341FC3A" author="Heard, R. W. &amp; Roccatagliata, D. &amp; Petrescu, I." box="[1128,1328,871,897]" pageId="28" pageNumber="129" refId="ref21032" refString="Heard, R. W., Roccatagliata, D. &amp; Petrescu, I., (2007) An Illustrated Guide to Cumacea (Crustacea: Malacostraca: Peracarida) from Florida Coastal and Shelf Waters to Depths of 100 M. Department of Environmental Protection, Tallahasee, 164 pp." type="book" year="2007">
<collectingCountry id="F34492CAFFEFFFD44B229561A2DDFC3A" box="[1128,1196,871,897]" name="Heard Island and McDonald Islands" pageId="28" pageNumber="129">Heard</collectingCountry>
<emphasis id="B9270E48FFEFFFD44BFE956EA29DFC3A" box="[1204,1260,871,897]" italics="true" pageId="28" pageNumber="129">et al.</emphasis>
2007
</bibRefCitation>
).
</paragraph>
<caption id="DF2C82D2FFEFFFD44FD29020A699F9D9" ID-DOI="http://doi.org/10.5281/zenodo.10350660" ID-Zenodo-Dep="10350660" httpUri="https://zenodo.org/record/10350660/files/figure.png" pageId="28" pageNumber="129" startId="28.[152,255,1574,1598]" targetBox="[151,1435,921,1550]" targetPageId="28" targetType="figure">
<paragraph id="8BECD25AFFEFFFD44FD29020A699F9D9" blockId="28.[151,1436,1574,1634]" pageId="28" pageNumber="129">
<emphasis id="B9270E48FFEFFFD44FD29020A757F985" bold="true" box="[152,294,1574,1598]" pageId="28" pageNumber="129">FIGURE 16.</emphasis>
Bathymetric range of species of
<taxonomicName id="4C53A9D9FFEFFFD44D339020A49EF985" authorityName="Sars" authorityYear="1878" box="[633,751,1574,1598]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
along the Brazilian coast (18° S–27° S) based on samples listed in Table 1.
</paragraph>
</caption>
<paragraph id="8BECD25AFFEFFFD44F8D90B3A505F838" blockId="28.[151,1437,1716,2031]" pageId="28" pageNumber="129">
Cumacean deep-sea records along the Brazilian coast came from two pioneer expeditions in the sixties led by the Woods Hole Institution aboard the N/O Atlantis II along a long transect between
<collectingCountry id="F34492CAFFEFFFD44B0F90DEA2EFF949" box="[1093,1182,1752,1778]" name="Senegal" pageId="28" pageNumber="129">Senegal</collectingCountry>
and Recife (
<quantity id="4CAB7FBFFFEFFFD44A6090DEA6DFF8AC" metricMagnitude="3" metricUnit="m" metricValue="2.6" metricValueMax="5.0" metricValueMin="0.2" pageId="28" pageNumber="129" unit="m" value="2600.0" valueMax="5000.0" valueMin="200.0">200–5000 m</quantity>
) (
<bibRefCitation id="EFC2AFABFFEFFFD44F8290FBA73CF8AD" author="Jones, N. S." box="[200,333,1788,1815]" pageId="28" pageNumber="129" pagination="88 - 180" refId="ref21112" refString="Jones, N. S. (1969) The systematics and distribution of Cumacea from depths exceeding 200 meters. Galathea Report, 10, 88 - 180." type="journal article" year="1969">Jones 1969</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44E1190FBA7E7F8AC" author="Jones, N. S." box="[347,406,1789,1815]" pageId="28" pageNumber="129" pagination="297 - 319" refId="ref21142" refString="Jones, N. S. (1973) Some new Cumacea from deep water in the Atlantic 1. Crustaceana, 25 (3), 297 - 319. https: // doi. org / 10.1163 / 156854073 x 00290" type="journal article" year="1973">1973</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44EEF90FBA791F8AC" author="Jones, N. S." box="[421,480,1789,1815]" pageId="28" pageNumber="129" pagination="207 - 289" refId="ref21185" refString="Jones, N. S. (1974) Campylaspis species (Crustacea, Cumacea) from the deep Atlantic. Bulletin of the British Museum (Natural History), Zoology, 46 (3), 207 - 289. https: // doi. org / 10.5962 / bhl. part. 22978" type="journal article" year="1974">1974</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44EA590FBA45BF8AC" author="Jones, N. S." box="[495,554,1789,1815]" pageId="28" pageNumber="129" pagination="249 - 300" refId="ref21241" refString="Jones, N. S. (1984) The family Nannastacidae (Crustacea: Cumacea) from the deep Atlantic. Bulletin of the British Museum (Natural History), Zoology, 27 (6), 249 - 300. https: // doi. org / 10.5962 / bhl. part. 22978" type="journal article" year="1984">1984</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44D7290FBA4B1F8AC" author="Reyss, D." box="[568,704,1788,1815]" pageId="28" pageNumber="129" pagination="168 - 179" refId="ref22036" refString="Reyss, D. (1975) Deux Cumaces nouveaux de l'Atlantique tropical: Atlantistylis chauvini n. g., n. sp. (Diastylidae) et Pseudodiastylis delamarei n. sp. (Lampropidae) 1. Crustaceana, 28 (1), 168 - 179. https: // doi. org / 10.1163 / 156854075 x 00720" type="journal article" year="1975">Reyss 1975</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44D8590FBA57AF8AC" author="Reyss, D." box="[719,779,1789,1815]" pageId="28" pageNumber="129" pagination="71 - 84" refId="ref22099" refString="Reyss, D. (1978) Cumaces de profondeur de l'Atlantique tropical. Famille des Lampropidae. Crustaceana, 35 (1), 71 - 84. https: // doi. org / 10.1163 / 156854078 x 00231" type="journal article" year="1978">1978</bibRefCitation>
). Later on,
<bibRefCitation id="EFC2AFABFFEFFFD44CD890FAA2CAF8AC" author="Watling, L. &amp; Gerken, S." box="[914,1211,1788,1815]" pageId="28" pageNumber="129" pagination="661 - 670" refId="ref22530" refString="Watling, L. &amp; Gerken, S. (1999) Two new cumacean (Crustacea) species from the deep South Atlantic. Zoosystema, 21 (4), 661 - 670." type="journal article" year="1999">Watling &amp; Gerken (1999)</bibRefCitation>
described two new species,
<taxonomicName id="4C53A9D9FFEFFFD44FBF9127A48CF880" authority="Watling &amp; Gerken, 1999" authorityName="Watling &amp; Gerken" authorityYear="1999" box="[245,765,1824,1851]" class="Malacostraca" family="Bodotriidae" genus="Gaussicuma" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="dufresne">
<emphasis id="B9270E48FFEFFFD44FBF9127A794F881" box="[245,485,1824,1851]" italics="true" pageId="28" pageNumber="129">Gaussicuma dufresne</emphasis>
<bibRefCitation id="EFC2AFABFFEFFFD44EA19126A48CF880" author="Watling, L. &amp; Gerken, S." box="[491,765,1824,1851]" pageId="28" pageNumber="129" pagination="661 - 670" refId="ref22530" refString="Watling, L. &amp; Gerken, S. (1999) Two new cumacean (Crustacea) species from the deep South Atlantic. Zoosystema, 21 (4), 661 - 670." type="journal article" year="1999">Watling &amp; Gerken, 1999</bibRefCitation>
</taxonomicName>
(
<taxonomicName id="4C53A9D9FFEFFFD44C419126A5E2F881" authorityName="Scott" authorityYear="1901" box="[779,915,1824,1850]" class="Malacostraca" family="Bodotriidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Bodotriidae</taxonomicName>
) and
<taxonomicName id="4C53A9D9FFEFFFD44C859126A73BF8E4" authority="Watling &amp; Gerken, 1999" authorityName="Watling &amp; Gerken" authorityYear="1999" class="Malacostraca" family="Nannastacidae" genus="Campylaspides" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="species" species="abyssotrucidatus">
<emphasis id="B9270E48FFEFFFD44C859126A34FF881" box="[975,1342,1824,1850]" italics="true" pageId="28" pageNumber="129">Campylaspides abyssotrucidatus</emphasis>
<bibRefCitation id="EFC2AFABFFEFFFD44A0E9126A73BF8E4" author="Watling, L. &amp; Gerken, S." pageId="28" pageNumber="129" pagination="661 - 670" refId="ref22530" refString="Watling, L. &amp; Gerken, S. (1999) Two new cumacean (Crustacea) species from the deep South Atlantic. Zoosystema, 21 (4), 661 - 670." type="journal article" year="1999">Watling &amp; Gerken, 1999</bibRefCitation>
</taxonomicName>
(
<taxonomicName id="4C53A9D9FFEFFFD44E1D9142A470F8E5" baseAuthorityName="Brito" baseAuthorityYear="2023" box="[343,513,1860,1886]" class="Malacostraca" family="Nannastacidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Nannastacidae</taxonomicName>
), both collected from the project
<emphasis id="B9270E48FFEFFFD44C219143A25BF8E4" box="[875,1066,1861,1887]" italics="true" pageId="28" pageNumber="129">Marion Dufresne</emphasis>
TAAF-MD55 that dredged along the Vitória-Trindade chain (
<quantity id="4CAB7FBFFFEFFFD44E87916EA420F838" box="[461,593,1896,1923]" metricMagnitude="3" metricUnit="m" metricValue="2.585" metricValueMax="5.154999999999999" metricValueMin="0.015" pageId="28" pageNumber="129" unit="m" value="2585.0" valueMax="5155.0" valueMin="15.0">15–5155 m</quantity>
), off Espírito Santo coast.
</paragraph>
<paragraph id="8BECD25AFFEFFFD54F8D918AA3E1FEFA" blockId="28.[151,1437,1716,2031]" lastBlockId="29.[151,1436,151,429]" lastPageId="29" lastPageNumber="130" pageId="28" pageNumber="129">
The
<taxonomicName id="4C53A9D9FFEFFFD44FB6918AA70EF81D" ID-CoL="7NJDS" authorityName="Sars" authorityYear="1878" box="[252,383,1932,1958]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
records, as well as
<taxonomicName id="4C53A9D9FFEFFFD44D2E918BA4BDF81C" authorityName="Kroyer" authorityYear="1846" box="[612,716,1933,1959]" class="Insecta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="order">Cumacea</taxonomicName>
in general, are more condensed to North Africa and Europe in the Eastern Atlantic (
<bibRefCitation id="EFC2AFABFFEFFFD44EC691B6A45FF870" author="Bishop, J. D. D." box="[396,558,1968,1995]" pageId="28" pageNumber="129" pagination="353 - 409" refId="ref20131" refString="Bishop, J. D. D. (1981 a) A revised definition of the genus Epileucon Jones (Crustacea, Cumacea) with descriptions of species from the deep Atlantic. Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 291 (1052), 353 - 409. https: // doi. org / 10.1098 / rstb. 1981.0003" type="journal article" year="1981">Bishop 1981a</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44D7791B6A4F7F871" author="Bishop, J. D. D." box="[573,646,1968,1994]" pageId="28" pageNumber="129" pagination="144 - 159" refId="ref20200" refString="Bishop, J. D. D. (1981 b) Two new leuconids (Peracarida, Cumacea) of widespread occurrence in the deep Atlantic. Crustaceana, 40 (2), 144 - 159. https: // doi. org / 10.1163 / 156854081 x 00552" type="journal article" year="1981">1981b</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44DDF91B7A569F870" author="Jones, N. S." box="[661,792,1968,1995]" pageId="28" pageNumber="129" pagination="183 - 212" refId="ref21086" refString="Jones, N. S. (1956) Cumacea from the west coast of Africa. Atlantide Report, 4, 183 - 212." type="journal article" year="1956">Jones 1956</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44C6D91B7A5BAF870" author="Petrescu, I." box="[807,971,1969,1995]" pageId="28" pageNumber="129" pagination="325 - 345" refId="ref21878" refString="Petrescu, I. (1994) Contributions to the knowledge of Leucon genus (Crustacea: Cumacea) from the waters of South America. Travaux du Museum d'Histoire naturelle &quot; Grigore Antipa &quot;, 34, 325 - 345." type="journal article" year="1994">Petrescu 1994</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEFFFD44C9391B6A206F870" author="Watling, L." box="[985,1143,1968,1995]" pageId="28" pageNumber="129" pagination="1747 - 1753" refId="ref22475" refString="Watling, L. (2009) Biogeographic provinces in the Atlantic deep sea determined from cumacean distribution patterns. Deep Sea Research Part II: Topical Studies in Oceanography, 56 (19 - 20), 1747 - 1753. https: // doi. org / 10.1016 / j. dsr 2.2009.05.019" type="journal article" year="2009">Watling 2009</bibRefCitation>
), where we noticed more expeditions and specialists working in the group. However, until 2005, only seven species of
<taxonomicName id="4C53A9D9FFEFFFD44B9091D2A32CF855" ID-CoL="7NJDS" authorityName="Sars" authorityYear="1878" box="[1242,1373,2004,2030]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="28" pageNumber="129" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
have been registered in the Southeast Atlantic, all of which were documented by
<bibRefCitation id="EFC2AFABFFEEFFD54B5D9691A2B3FF0A" author="Bishop, J. D. D." box="[1047,1218,151,177]" pageId="29" pageNumber="130" pagination="353 - 409" refId="ref20131" refString="Bishop, J. D. D. (1981 a) A revised definition of the genus Epileucon Jones (Crustacea, Cumacea) with descriptions of species from the deep Atlantic. Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 291 (1052), 353 - 409. https: // doi. org / 10.1098 / rstb. 1981.0003" type="journal article" year="1981">Bishop (1981a</bibRefCitation>
,
<bibRefCitation id="EFC2AFABFFEEFFD54B989691A36DFF0A" author="Bishop, J. D. D." box="[1234,1308,151,177]" pageId="29" pageNumber="130" pagination="144 - 159" refId="ref20200" refString="Bishop, J. D. D. (1981 b) Two new leuconids (Peracarida, Cumacea) of widespread occurrence in the deep Atlantic. Crustaceana, 40 (2), 144 - 159. https: // doi. org / 10.1163 / 156854081 x 00552" type="journal article" year="1981">1981b</bibRefCitation>
). Later on,
<bibRefCitation id="EFC2AFABFFEEFFD54FDD96BDA7B5FF6E" author="Muhlenhardt-Siegel, U." box="[151,452,186,213]" pageId="29" pageNumber="130" pagination="131 - 149" refId="ref21607" refString="Muhlenhardt-Siegel, U. (2005) Cumacea species (Crustacea: Peracarida) from the deep-sea expedition DIVA- 1 with RV &quot; Meteor &quot; to the Angola Basin in July 2000. Family Leuconidae. Organisms Diversity &amp; Evolution, 5, 131 - 149. https: // doi. org / 10.1016 / j. ode. 2004.10.009" type="journal article" year="2005">Mühlenhardt-Siegel (2005</bibRefCitation>
;
<bibRefCitation id="EFC2AFABFFEEFFD54E8596BDA465FF6E" author="Muhlenhardt-Siegel, U." box="[463,532,187,213]" pageId="29" pageNumber="130" pagination="211 - 260" refId="ref21719" refString="Muhlenhardt-Siegel, U. (2011 a) Deep-sea Leuconidae (Cumacea, Peracarida) in the south-eastern Atlantic. Marine Biodiversity, 41 (2), 211 - 260. https: // doi. org / 10.1007 / s 12526 - 010 - 0051 - 2" type="journal article" year="2011">2011a</bibRefCitation>
) conducted large taxonomic studies on
<taxonomicName id="4C53A9D9FFEEFFD54C9996BDA227FF6E" ID-CoL="7NJDS" authorityName="Sars" authorityYear="1878" box="[979,1110,187,213]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="29" pageNumber="130" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
in the Southeastern Atlantic, specifically in the
<collectingCountry id="F34492CAFFEEFFD54E2C96D9A7C6FF42" box="[358,439,223,249]" name="Guinea-Bissau" pageId="29" pageNumber="130">Guinea</collectingCountry>
Basin,
<collectingCountry id="F34492CAFFEEFFD54D4196D9A42CFF42" box="[523,605,223,249]" name="Angola" pageId="29" pageNumber="130">Angola</collectingCountry>
Basin, and Cape Basin, based in the DIVA I expedition, at abyssal depths ranging from 5047 to 5452 meters. A total of 17 new species were described in these works, with the majority belonging to the genus
<taxonomicName id="4C53A9D9FFEEFFD54ED69721A79FFEFB" ID-CoL="7P9V2" authorityName="Kroyer" authorityYear="1846" box="[412,494,295,320]" class="Malacostraca" family="Leuconidae" genus="Leucon" kingdom="Animalia" order="Cumacea" pageId="29" pageNumber="130" phylum="Arthropoda" rank="genus">
<emphasis id="B9270E48FFEEFFD54ED69721A79FFEFB" box="[412,494,295,320]" italics="true" pageId="29" pageNumber="130">Leucon</emphasis>
</taxonomicName>
, followed by
<taxonomicName id="4C53A9D9FFEEFFD54DC09721A488FEFA" ID-CoL="7NZFH" authorityName="Norman" authorityYear="1867" box="[650,761,295,321]" class="Malacostraca" family="Leuconidae" genus="Eudorella" kingdom="Animalia" order="Cumacea" pageId="29" pageNumber="130" phylum="Arthropoda" rank="genus">
<emphasis id="B9270E48FFEEFFD54DC09721A488FEFA" box="[650,761,295,321]" italics="true" pageId="29" pageNumber="130">Eudorella</emphasis>
</taxonomicName>
,
<taxonomicName id="4C53A9D9FFEEFFD54C4D9721A5E2FEFA" ID-CoL="7NVHG" authorityName="Watling" authorityYear="1991" box="[775,915,295,321]" class="Malacostraca" family="Leuconidae" genus="Bytholeucon" kingdom="Animalia" order="Cumacea" pageId="29" pageNumber="130" phylum="Arthropoda" rank="genus">
<emphasis id="B9270E48FFEEFFD54C4D9721A5E2FEFA" box="[775,915,295,321]" italics="true" pageId="29" pageNumber="130">Bytholeucon</emphasis>
</taxonomicName>
, and the newly discovered genus
<taxonomicName id="4C53A9D9FFEEFFD54A449721A3F8FEFA" ID-CoL="8Q9HB" authorityName="Muhlenhardt-Siegel" authorityYear="2011" box="[1294,1417,295,321]" class="Malacostraca" family="Leuconidae" genus="Afroleucon" kingdom="Animalia" order="Cumacea" pageId="29" pageNumber="130" phylum="Arthropoda" rank="genus">
<emphasis id="B9270E48FFEEFFD54A449721A3F8FEFA" box="[1294,1417,295,321]" italics="true" pageId="29" pageNumber="130">Afroleucon</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BECD25AFFEEFFD54F8D974DA44EFE16" blockId="29.[151,1436,151,429]" pageId="29" pageNumber="130">
In the present study we describe five new species and a new genus of
<taxonomicName id="4C53A9D9FFEEFFD54CB0974DA20CFEDE" ID-CoL="7NJDS" authorityName="Sars" authorityYear="1878" box="[1018,1149,331,357]" class="Malacostraca" family="Leuconidae" kingdom="Animalia" order="Cumacea" pageId="29" pageNumber="130" phylum="Arthropoda" rank="family">Leuconidae</taxonomicName>
for the SW Atlantic, but further studies from the area showed that much more new material needs to be described and will appear in near future publications (Brito pers. com.).
</paragraph>
</subSubSection>
</treatment>
</document>
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