treatments-xml/data/03/D1/E3/03D1E37CFF97FFAF478ECC3BFC66FC44.xml

<document id="40C426BD6DB1BAB4F6A81C95BA2FAB83" ID-CLB-Dataset="28548" ID-DOI="10.5852/ejt.2019.495" ID-GBIF-Dataset="db716632-f55b-4a04-b3cd-918eea1c92c9" ID-Zenodo-Dep="2584868" ID-ZooBank="65CC1141-E560-4979-97E5-F0701563C84B" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1550571519547" checkinUser="plazi" docAuthor="Wittmann, Karl J. &amp; Wirtz, Peter" docDate="2019" docId="03D1E37CFF97FFAF478ECC3BFC66FC44" docLanguage="en" docName="ejt-495_wittmann_wirtz.pdf.imf" docOrigin="European Journal of Taxonomy 495" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Mysidium (Mysidium) triangulare Wittmann, sp. nov." docType="treatment" docUuid="B0EB7822-4D13-4D05-8C40-2A7F01297301" docUuidSource="ZooBank" docVersion="9" lastPageNumber="23" masterDocId="FFE89B04FF98FFB94653CA7CFFEFFFBC" masterDocTitle="Revision of the amphiamerican genus Mysidium Dana, 1852 (Crustacea: Mysida: Mysidae), with descriptions of two new species and the establishment of two new subgenera" masterLastPageNumber="48" masterPageNumber="1" originalUpdateDomain="Boston" originalUpdateTime="1550053837853" originalUpdateUser="plazi" pageNumber="16" updateTime="1698698833033" updateUser="ExternalLinkService">
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<mods:title id="E47E82E333726F16D4187F4345EFE043">Revision of the amphiamerican genus Mysidium Dana, 1852 (Crustacea: Mysida: Mysidae), with descriptions of two new species and the establishment of two new subgenera</mods:title>
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<mods:namePart id="420C85AD75830C58C00FAD366D88657A">Wittmann, Karl J.</mods:namePart>
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<treatment id="03D1E37CFF97FFAF478ECC3BFC66FC44" ID-DOI="http://doi.org/10.5281/zenodo.5695537" ID-GBIF-Taxon="152585787" ID-Zenodo-Dep="5695537" LSID="urn:lsid:zoobank.org:act:B0EB7822-4D13-4D05-8C40-2A7F01297301" httpUri="http://treatment.plazi.org/id/03D1E37CFF97FFAF478ECC3BFC66FC44" lastPageId="22" lastPageNumber="23" pageId="15" pageNumber="16">
<subSubSection id="C36201E1FF97FFB6478ECC3BFCA3F915" pageId="15" pageNumber="16" type="nomenclature">
<paragraph id="8BC7526AFF97FFB6478ECC3BFBB8F9DE" blockId="15.[373,1214,1607,1705]" box="[477,1111,1607,1634]" pageId="15" pageNumber="16">
<heading id="D08FE506FF97FFB6478ECC3BFBB8F9DE" box="[477,1111,1607,1634]" centered="true" fontSize="11" level="2" pageId="15" pageNumber="16" reason="2">
<taxonomicName id="4C7829E9FF97FFB6478ECC3BFC1BF9DD" authority="Wittmann" authorityName="Wittmann" box="[477,1012,1607,1634]" class="Malacostraca" family="Mysidae" genus="Mysidium" kingdom="Animalia" order="Mysida" pageId="15" pageNumber="16" phylum="Arthropoda" rank="subGenus" status="sp. nov." subGenus="Mysidium">
<emphasis id="B90C8E78FF97FFB6478ECC3BFC95F9DE" bold="true" box="[477,890,1607,1634]" pageId="15" pageNumber="16">
<emphasis id="B90C8E78FF97FFB6478ECC3BFDB9F9DE" bold="true" box="[477,598,1607,1634]" italics="true" pageId="15" pageNumber="16">Mysidium</emphasis>
(
<emphasis id="B90C8E78FF97FFB64434CC3BFD0FF9DE" bold="true" box="[615,736,1607,1634]" italics="true" pageId="15" pageNumber="16">Mysidium</emphasis>
) 
<emphasis id="B90C8E78FF97FFB644A2CC3BFC95F9DE" bold="true" box="[753,890,1607,1634]" italics="true" pageId="15" pageNumber="16">triangulare</emphasis>
</emphasis>
Wittmann
</taxonomicName>
<taxonomicNameLabel id="A23F3303FF97FFB645AFCC34FBB8F9DE" box="[1020,1111,1608,1634]" pageId="15" pageNumber="16" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
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<uri id="FFE95E68FF97FFB64726CC17FB51F93A" box="[373,1214,1643,1670]" pageId="15" pageNumber="16">
urn:lsid:zoobank.org:act: 
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</uri>
</paragraph>
<paragraph id="8BC7526AFF97FFB644B4CCF2FCA3F915" blockId="15.[373,1214,1607,1705]" box="[743,844,1678,1705]" pageId="15" pageNumber="16">
<figureCitation id="13434EEFFF97FFB644B4CCF2FCA3F915" box="[743,844,1678,1705]" captionStart-0="Fig. 5" captionStart-1="Fig. 6" captionStart-2="Fig. 7" captionStart-3="Fig. 8" captionStartId-0="17.[189,232,1788,1814]" captionStartId-1="18.[189,232,1860,1886]" captionStartId-2="20.[189,232,1860,1886]" captionStartId-3="21.[189,232,1860,1886]" captionTargetBox-0="[255,1331,265,1759]" captionTargetBox-1="[235,1356,265,1822]" captionTargetBox-2="[234,1355,265,1821]" captionTargetBox-3="[237,1356,265,1819]" captionTargetId-0="figure@17.[255,1331,265,1759]" captionTargetId-1="figure@18.[235,1356,265,1822]" captionTargetId-2="figure@20.[234,1355,265,1821]" captionTargetId-3="figure@21.[237,1356,265,1819]" captionTargetPageId-0="17" captionTargetPageId-1="18" captionTargetPageId-2="20" captionTargetPageId-3="21" captionText-0="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." captionText-1="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." captionText-2="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." captionText-3="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri-0="https://zenodo.org/record/2584878/files/figure.png" httpUri-1="https://zenodo.org/record/2584880/files/figure.png" httpUri-2="https://zenodo.org/record/2584882/files/figure.png" httpUri-3="https://zenodo.org/record/2584884/files/figure.png" pageId="15" pageNumber="16">Figs 5–8</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C36201E1FF97FFB646EECCB0FED9F884" pageId="15" pageNumber="16" type="etymology">
<paragraph id="8BC7526AFF97FFB646EECCB0FEABF95A" blockId="15.[189,324,1740,1766]" box="[189,324,1740,1766]" pageId="15" pageNumber="16">
<heading id="D08FE506FF97FFB646EECCB0FEABF95A" bold="true" box="[189,324,1740,1766]" fontSize="11" level="3" pageId="15" pageNumber="16" reason="3">
<emphasis id="B90C8E78FF97FFB646EECCB0FEABF95A" bold="true" box="[189,324,1740,1766]" pageId="15" pageNumber="16">Etymology</emphasis>
</heading>
</paragraph>
<paragraph id="8BC7526AFF97FFB646EECC86FED9F884" blockId="15.[189,1398,1786,1848]" pageId="15" pageNumber="16">The species name is a Latin adjective with neutral ending, referring to the triangular terminal portion of the telson.</paragraph>
</subSubSection>
<subSubSection id="C36201E1FF97FFA946EECD20FC7CFAF8" lastPageId="16" lastPageNumber="17" pageId="15" pageNumber="16" type="materials_examined">
<paragraph id="8BC7526AFF97FFB646EECD20FE03F8C9" blockId="15.[189,492,1883,1910]" box="[189,492,1883,1910]" pageId="15" pageNumber="16">
<heading id="D08FE506FF97FFB646EECD20FE03F8C9" bold="true" box="[189,492,1883,1910]" fontSize="11" level="3" pageId="15" pageNumber="16" reason="3">
<emphasis id="B90C8E78FF97FFB646EECD20FE03F8C9" bold="true" box="[189,492,1883,1910]" pageId="15" pageNumber="16">Type material examined</emphasis>
</heading>
</paragraph>
<paragraph id="8BC7526AFF97FFB646B9CDF6FDA9F857" blockId="15.[189,1399,1930,2027]" pageId="15" pageNumber="16">
<materialsCitation id="3B105837FF97FFB646B9CDF6FDA9F857" ID-GBIF-Occurrence="1993833461" collectionCode="NHMW" country="Curaçao" latitude="-69.1511" location="Curacao" municipality="Playa Lagun" pageId="15" pageNumber="16" specimenCode="NHMW 26487" specimenCount="1" typeStatus="holotype">
<typeStatus id="54C3ECC8FF97FFB646B9CDF6FEB3F818" box="[234,348,1930,1956]" pageId="15" pageNumber="16" type="holotype">
<emphasis id="B90C8E78FF97FFB646B9CDF6FEB3F818" bold="true" box="[234,348,1930,1956]" pageId="15" pageNumber="16">Holotype</emphasis>
</typeStatus>
(by present designation) 
<collectingCountry id="F36F12FAFF97FFB646EECDD2FEA3F874" box="[189,332,1966,1992]" name="Curaçao" pageId="15" pageNumber="16">CURAÇAO</collectingCountry>
• ♂ ad. bl 
<quantity id="4C80FF8FFF97FFB647BBCDD1FDA5F874" box="[488,586,1965,1992]" metricMagnitude="-3" metricUnit="m" metricValue="5.2" pageId="15" pageNumber="16" unit="mm" value="5.2">5.2 mm</quantity>
; sublittoral marine waters of 
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, 
<collectingMunicipality id="6BA3C810FF97FFB64267CDD1FB3EF874" box="[1076,1233,1965,1992]" pageId="15" pageNumber="16">Playa Lagun</collectingMunicipality>
; 
<geoCoordinate id="EE4C34ADFF97FFB642B1CDD2FA9DF874" box="[1250,1394,1966,1992]" direction="north" orientation="latitude" pageId="15" pageNumber="16" precision="5" value="12.3181">12.3181° N</geoCoordinate>
, 
<geoCoordinate id="EE4C34ADFF97FFB646EECDACFEAEF857" box="[189,321,2000,2027]" direction="south" orientation="latitude" pageId="15" pageNumber="16" precision="5" value="-69.1511">69.1511° S</geoCoordinate>
. #C8; 
<specimenCode id="DBDEFA11FF97FFB647DDCDADFDADF857" box="[398,578,2001,2027]" collectionCode="NHMW" country="Austria" httpUri="http://grbio.org/cool/91g3-0mnw" name="Naturhistorisches Museum, Wien" pageId="15" pageNumber="16">NHMW 26487</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph id="8BC7526AFF88FFA946B9CB77FC3AFED1" blockId="16.[189,1398,267,366]" pageId="16" pageNumber="17">
<materialsCitation id="3B105837FF88FFA946B9CB77FC22FED2" ID-GBIF-Occurrence="1993833466" collectionCode="MINGA, ZMH" country="Curaçao" pageId="16" pageNumber="17" specimenCode="MYS 436, NHMW 26488" specimenCount="52" specimenCount-female="44" typeStatus="paratype">
<typeStatus id="54C3ECC8FF88FFA946B9CB77FE88FE99" box="[234,359,267,293]" pageId="16" pageNumber="17" type="paratype">
<emphasis id="B90C8E78FF88FFA946B9CB77FE88FE99" bold="true" box="[234,359,267,293]" pageId="16" pageNumber="17">Paratypes</emphasis>
</typeStatus>
(by present designation) 
<collectingCountry id="F36F12FAFF88FFA946EECB53FEA3FEF5" box="[189,332,303,329]" name="Curaçao" pageId="16" pageNumber="17">CURAÇAO</collectingCountry>
• 57 ♂♂ ad. bl 
<quantity id="4C80FF8FFF88FFA9445ACB53FD75FEF5" box="[521,666,303,330]" metricMagnitude="-3" metricUnit="m" metricValue="4.75" metricValueMax="5.7" metricValueMin="3.8" pageId="16" pageNumber="17" unit="mm" value="4.75" valueMax="5.7" valueMin="3.8">3.8–5.7 mm</quantity>
, 
<specimenCount id="9D7E99E3FF88FFA944F5CB53FD18FEF5" box="[678,759,303,329]" pageId="16" pageNumber="17" type="female">44 ♀♀</specimenCount>
ad. bl 
<quantity id="4C80FF8FFF88FFA9451BCB53FC36FEF5" box="[840,985,303,330]" metricMagnitude="-3" metricUnit="m" metricValue="5.35" metricValueMax="5.9" metricValueMin="4.8" pageId="16" pageNumber="17" unit="mm" value="5.35" valueMax="5.9" valueMin="4.8">4.8–5.9 mm</quantity>
, 
<specimenCount id="9D7E99E3FF88FFA945B6CB53FBA4FEF5" box="[997,1099,303,329]" pageId="16" pageNumber="17" type="generic">8 subad.</specimenCount>
; same locality data as for 
<typeStatus id="54C3ECC8FF88FFA946EECB2FFEC8FED1" box="[189,295,339,365]" pageId="16" pageNumber="17" type="holotype">holotype</typeStatus>
; #C8; 
<collectionCode id="ED69CAAFFF88FFA94727CB2FFE38FED1" box="[372,471,339,365]" pageId="16" pageNumber="17">MINGA</collectionCode>
<specimenCode id="DBDEFA11FF88FFA9478ECB2FFDBCFED1" box="[477,595,339,365]" collectionCode="MINGA" pageId="16" pageNumber="17">MYS 436</specimenCode>
, 
<specimenCode id="DBDEFA11FF88FFA9440DCB2FFCE1FED1" box="[606,782,339,365]" collectionCode="NHMW" country="Austria" httpUri="http://grbio.org/cool/91g3-0mnw" name="Naturhistorisches Museum, Wien" pageId="16" pageNumber="17">NHMW 26488</specimenCode>
, 
<collectionCode id="ED69CAAFFF88FFA9454ECB2FFCB1FED1" box="[797,862,339,365]" country="Germany" httpUri="http://grbio.org/cool/kdnf-0379" name="Zoologisches Museum Hamburg" pageId="16" pageNumber="17">ZMH</collectionCode>
K-55260
</materialsCitation>
.
</paragraph>
<paragraph id="8BC7526AFF88FFA946EECBE9FE16FE13" blockId="16.[189,505,405,431]" box="[189,505,405,431]" pageId="16" pageNumber="17">
<heading id="D08FE506FF88FFA946EECBE9FE16FE13" bold="true" box="[189,505,405,431]" fontSize="11" level="3" pageId="16" pageNumber="17" reason="3">
<emphasis id="B90C8E78FF88FFA946EECBE9FE16FE13" bold="true" box="[189,505,405,431]" pageId="16" pageNumber="17">Other material examined</emphasis>
</heading>
</paragraph>
<paragraph id="8BC7526AFF88FFA946EECBB9FA9BFDBF" blockId="16.[189,1399,452,515]" pageId="16" pageNumber="17">
<collectingCountry id="F36F12FAFF88FFA946EECBB9FEA3FE63" box="[189,332,453,479]" name="Curaçao" pageId="16" pageNumber="17">CURAÇAO</collectingCountry>
• 
<specimenCount id="9D7E99E3FF88FFA94736CBB9FE48FE63" box="[357,423,453,479]" pageId="16" pageNumber="17" type="female">2 ♀♀</specimenCount>
ad. bl 
<quantity id="4C80FF8FFF88FFA947A4CBB8FD67FE63" box="[503,648,452,479]" metricMagnitude="-3" metricUnit="m" metricValue="5.4" metricValueMax="5.5" metricValueMin="5.3" pageId="16" pageNumber="17" unit="mm" value="5.4" valueMax="5.5" valueMin="5.3">5.3–5.5 mm</quantity>
, 3 ♂♂ ad. bl 4.0– 
<quantity id="4C80FF8FFF88FFA9450ACBB9FC59FE63" box="[857,950,453,479]" metricMagnitude="-3" metricUnit="m" metricValue="4.2" pageId="16" pageNumber="17" unit="mm" value="4.2">4.2 mm</quantity>
; #C3; MINGA MYS 430 • 
<specimenCount id="9D7E99E3FF88FFA942A4CBB9FACCFE63" box="[1271,1315,453,479]" pageId="16" pageNumber="17" type="female">1 ♀</specimenCount>
subad. bl 
<quantity id="4C80FF8FFF88FFA94688CB94FED7FDBF" box="[219,312,488,515]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="16" pageNumber="17" unit="mm" value="3.5">3.5 mm</quantity>
; associated with swarm of 
<taxonomicName id="4C7829E9FF88FFA94426CB95FCE9FDBE" authorityName="W. M. Tattersall" authorityYear="1951" box="[629,774,489,514]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="species" species="integrum">
<emphasis id="B90C8E78FF88FFA94426CB95FCE9FDBE" box="[629,774,489,514]" italics="true" pageId="16" pageNumber="17">M. integrum</emphasis>
</taxonomicName>
freely swimming in the entrance area of cave; #C10.
</paragraph>
<paragraph id="8BC7526AFF88FFA946EEC857FED6FDF9" blockId="16.[189,313,555,581]" box="[189,313,555,581]" pageId="16" pageNumber="17">
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<emphasis id="B90C8E78FF88FFA946EEC857FED6FDF9" bold="true" box="[189,313,555,581]" pageId="16" pageNumber="17">Definition</emphasis>
</heading>
</paragraph>
<paragraph id="8BC7526AFF88FFA946EEC826FC7CFAF8" blockId="16.[189,1399,602,1349]" pageId="16" pageNumber="17">
All features diagnosed above for genus and subgenus 
<taxonomicName id="4C7829E9FF88FFA94568C826FBADFDC9" authority="Dana, 1852" authorityName="Dana" authorityYear="1852" box="[827,1090,602,629]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="16" pageNumber="17" phylum="Arthropoda" rank="subGenus" subGenus="Mysidium">
<emphasis id="B90C8E78FF88FFA94568C826FC40FDC8" box="[827,943,602,628]" italics="true" pageId="16" pageNumber="17">Mysidium</emphasis>
<bibRefCitation id="EFE92F9BFF88FFA945E4C827FBADFDC9" author="Dana J. D." box="[951,1090,602,629]" pageId="16" pageNumber="17" refId="ref20659" refString="Dana J. D. 1852. Crustacea. Part I. United States Exploring Expedition during the Years 1838, 1839, 1840, 1841, 1842 under the Command of Charles Wilkes, U. S. N. Vol. XIII (I). C. Sherman, Philadelphia." type="journal volume" year="1852">Dana, 1852</bibRefCitation>
</taxonomicName>
. Cornea globose in lateral view; calotte-shaped in dorsal view, with diameter 1.7–2.5 times as long as terminal segment of antennular trunk. Eyestalks smooth. Rostrum triangular, apically pointed to well rounded, not extending beyond basis of eyestalks. Antero-lateral edges of carapace rounded. Only males with anterior margin of antennular trunk dorsally with rounded, shield-like, mediodistal extension (
<figureCitation id="13434EEFFF88FFA94201C896FB3BFCB9" box="[1106,1236,746,773]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="16" pageNumber="17">Fig. 5A–B</figureCitation>
); longitudinal series of 6–10 setae extending all over this extension plus a short proximal stretch. The largest seta 0.1–0.3 times extension length. Appendix masculina bilobate, densely setose; its length 1.5–2.0 times terminal segment of antennular trunk. Length of antennal scale 5–7 times maximum width, scale reaching far beyond antennular trunk. Median segment of mandibular palp with setae on both margins. Almost evenly rounded hump on outer face of distal segment of maxillula. Carpopropodus two-segmented in thoracic endopods 1–2, 8, or three-segmented in endopods 3–7, except that endopods 6, 
<date id="FFC674AAFF88FFA9429EC9BFFAF9FC61" box="[1229,1302,963,989]" pageId="16" pageNumber="17">7 may</date>
be twosegmented in some females. Basal segment occupies 0.4–0.5 times total length of carpopropodus of endopod 3. Pleopod 1 representing a stout, bilobate plate in both sexes. Sympod of male pleopod 4 with endite reduced to a weak medial hump or missing. Exopod with basal segment occupying 56–63% total length. Endopod reduced to lobe with 10–16% sympod length; lobe apically with one long, barbed seta and more proximally with additional 4–6 shorter, barbed setae. Endopod of uropods 0.6–0.8 times as long as exopod. Telson spatulate, length 1.9–2.1 times maximum width near basis; median portion with concave lateral margins, terminal portion triangular with rounded tip. Proximal 52–64% of lateral margins smooth; distal portion of each margin with continuous series of 5–11 acute spines, this series extending up to the corner with the triangular apical portion. Margin of the triangular portion densely furnished with a total of 21–24 strong, apically blunt laminae.
</paragraph>
</subSubSection>
<subSubSection id="C36201E1FF88FFAF46EECF10FC4DFCDB" lastPageId="22" lastPageNumber="23" pageId="16" pageNumber="17" type="description">
<paragraph id="8BC7526AFF88FFA946EECF10FEA1FA3A" blockId="16.[189,334,1388,1414]" box="[189,334,1388,1414]" pageId="16" pageNumber="17">
<heading id="D08FE506FF88FFA946EECF10FEA1FA3A" bold="true" box="[189,334,1388,1414]" fontSize="11" level="3" pageId="16" pageNumber="17" reason="3">
<emphasis id="B90C8E78FF88FFA946EECF10FEA1FA3A" bold="true" box="[189,334,1388,1414]" pageId="16" pageNumber="17">Description</emphasis>
</heading>
</paragraph>
<paragraph id="8BC7526AFF88FFA946EECFE1FBDEFA0B" blockId="16.[189,1073,1436,1463]" box="[189,1073,1436,1463]" pageId="16" pageNumber="17">
BODY SIZE. Adult females 
<quantity id="4C80FF8FFF88FFA947BACFE0FD98FA0B" box="[489,631,1436,1463]" metricMagnitude="-3" metricUnit="m" metricValue="5.35" metricValueMax="5.9" metricValueMin="4.8" pageId="16" pageNumber="17" unit="mm" value="5.35" valueMax="5.9" valueMin="4.8">4.8–5.9 mm</quantity>
(n = 46), males 
<quantity id="4C80FF8FFF88FFA94564CFE0FC2BFA0B" box="[823,964,1436,1463]" metricMagnitude="-3" metricUnit="m" metricValue="4.75" metricValueMax="5.7" metricValueMin="3.8" pageId="16" pageNumber="17" unit="mm" value="4.75" valueMax="5.7" valueMin="3.8">3.8–5.7 mm</quantity>
(n = 61).
</paragraph>
<paragraph id="8BC7526AFF88FFA946EECFA2FE72F949" blockId="16.[189,1399,1502,1781]" pageId="16" pageNumber="17">
ANTENNAL APPENDAGES (
<figureCitation id="13434EEFFF88FFA947B6CFA2FD53FA44" box="[485,700,1502,1529]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="16" pageNumber="17">Fig. 5A–B, F–G</figureCitation>
). Antennular trunk extends 10–50% its length beyond (artificially aligned) eyes. First to third segments occupy 46–57%, 15–18% or 28–36% total trunk length, respectively. Trunk dorsally with forward directed small, setose lobes near terminal margin of each segment: two lobes from basal, one from median, and one from terminal segment (not counting the mediodistal extension of anterior margin in males). Appendix masculina 0.4–0.5 times total trunk length, antennal scale 1.1–1.5 times trunk. Sympod of antenna produced into spiniform extension on outer distal corner. Antennal scale with terminal segment occupying 13–24% total length and bearing five plumose setae.
</paragraph>
<paragraph id="8BC7526AFF88FFAA46EECD61FEF8FE66" blockId="16.[189,1399,1820,2027]" lastBlockId="19.[189,1399,267,474]" lastPageId="19" lastPageNumber="20" pageId="16" pageNumber="17">
MOUTH PARTS (
<figureCitation id="13434EEFFF88FFA94722CD61FE19F88B" box="[369,502,1820,1847]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="16" pageNumber="17">Figs 5H, J</figureCitation>
, 
<figureCitation id="13434EEFFF88FFA9445BCD60FDBCF88B" box="[520,595,1820,1847]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="16" pageNumber="17">6A–C</figureCitation>
). Mandibular palp without spines; terminal segment with strong, modified, bent seta at apex, and barbed setae along inner and outer margins. Median segment of palp with angular, medially directed dilatation, both its margins setose. Proximal segment normal, with smooth margins. Distal segment of maxillula terminally with strong spines, subterminally with one barbed seta; tip of endite of maxillula with apically modified setae (armed with stiff barbs) plus several shorter setae with normal, fine barbs. Maxilla with well-developed exopod, moderately large, two-segmented palp, and three apically setose endites. Exopod with maximum width in median portions; its outer margin all along with series of plumose setae. Basal segment of palp with three barbed setae. Apical segment about two times as long as basal segment. Length of apical segment 2.0–2.5 times maximum width, densely setose on terminal margin but lined by small hairs along more than basal half of inner margin. Apex of palp with two strong, modified setae bearing strong, spine-like barbs along distal third of their inner margin.
</paragraph>
<caption id="DF0702E2FF89FFA846EECC80FE3AF856" httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="17" pageNumber="18" startId="17.[189,232,1788,1814]" targetBox="[255,1331,265,1759]" targetPageId="17">
<paragraph id="8BC7526AFF89FFA846EECC80FE3AF856" blockId="17.[189,1399,1788,2026]" pageId="17" pageNumber="18">
<emphasis id="B90C8E78FF89FFA846EECC80FEE6F8AB" bold="true" box="[189,265,1788,1815]" pageId="17" pageNumber="18">Fig. 5.</emphasis>
<taxonomicName id="4C7829E9FF89FFA84743CC81FDE0F8AB" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[272,527,1789,1815]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="17" pageNumber="18" phylum="Arthropoda" rank="species" species="triangulare">
<emphasis id="B90C8E78FF89FFA84743CC81FDE0F8AB" box="[272,527,1789,1815]" italics="true" pageId="17" pageNumber="18">Mysidium triangulare</emphasis>
</taxonomicName>
Wittmann 
<taxonomicNameLabel id="A23F3303FF89FFA844DDCC81FD04F8AB" box="[654,747,1789,1815]" pageId="17" pageNumber="18" rank="species">sp. nov.</taxonomicNameLabel>
, from Curaçao, holotype (A) and paratypes (B–J). 
<emphasis id="B90C8E78FF89FFA84365CC80FAA4F8AA" bold="true" box="[1334,1355,1788,1814]" pageId="17" pageNumber="18">A</emphasis>
. ♂, 5.2 mm body length. 
<emphasis id="B90C8E78FF89FFA847E8CD5CFE20F886" bold="true" box="[443,463,1824,1850]" pageId="17" pageNumber="18">B</emphasis>
. ♂, 5.4 mm. 
<emphasis id="B90C8E78FF89FFA8443DCD5CFD4AF886" bold="true" box="[622,677,1824,1850]" pageId="17" pageNumber="18">C–E</emphasis>
. ♂, 5.0 mm. 
<emphasis id="B90C8E78FF89FFA84517CD5CFCB9F886" bold="true" box="[836,854,1824,1850]" pageId="17" pageNumber="18">F</emphasis>
, 
<emphasis id="B90C8E78FF89FFA84536CD5CFC93F886" bold="true" box="[869,892,1824,1850]" pageId="17" pageNumber="18">H</emphasis>
. ♀, 5.9 mm. 
<emphasis id="B90C8E78FF89FFA84248CD5CFBDDF886" bold="true" box="[1051,1074,1824,1850]" pageId="17" pageNumber="18">G</emphasis>
. ♂, 5.5 mm. 
<emphasis id="B90C8E78FF89FFA84282CD5CFB0FF886" bold="true" box="[1233,1248,1824,1850]" pageId="17" pageNumber="18">J</emphasis>
. ♀, 5.1 mm. 
<emphasis id="B90C8E78FF89FFA846EECD3FFF3DF8E1" bold="true" box="[189,210,1859,1885]" pageId="17" pageNumber="18">A</emphasis>
. Cephalic region; right antennula and setae of antennal scale omitted. 
<emphasis id="B90C8E78FF89FFA8427ACD3FFBD2F8E1" bold="true" box="[1065,1085,1859,1885]" pageId="17" pageNumber="18">B</emphasis>
. Mediodistal extension of left antennular trunk, dorsal. 
<emphasis id="B90C8E78FF89FFA84443CD1AFDCAF83C" bold="true" box="[528,549,1894,1920]" pageId="17" pageNumber="18">C</emphasis>
. Carapace expanded on slide. 
<emphasis id="B90C8E78FF89FFA845DACD1AFC2EF83C" bold="true" box="[905,961,1894,1921]" pageId="17" pageNumber="18">D–E</emphasis>
. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. 
<emphasis id="B90C8E78FF89FFA845E8CDF6FC22F818" bold="true" box="[955,973,1930,1956]" pageId="17" pageNumber="18">F</emphasis>
. Right antennula of female, dorsal view. 
<emphasis id="B90C8E78FF89FFA84755CDD0FEF2F87A" bold="true" box="[262,285,1964,1990]" pageId="17" pageNumber="18">G</emphasis>
. Right antenna, ventral view. 
<emphasis id="B90C8E78FF89FFA844D8CDD1FD4DF87B" bold="true" box="[651,674,1965,1991]" pageId="17" pageNumber="18">H</emphasis>
. Right mandible with left masticatory process, rostral view. 
<emphasis id="B90C8E78FF89FFA846EECDACFF23F856" bold="true" box="[189,204,2000,2026]" pageId="17" pageNumber="18">J</emphasis>
. Labium, rostral view.
</paragraph>
</caption>
<caption id="DF0702E2FF8AFFAB46EECD38FD9DF856" httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="18" pageNumber="19" startId="18.[189,232,1860,1886]" targetBox="[235,1356,265,1822]" targetPageId="18">
<paragraph id="8BC7526AFF8AFFAB46EECD38FD9DF856" blockId="18.[189,1399,1860,2027]" pageId="18" pageNumber="19">
<emphasis id="B90C8E78FF8AFFAB46EECD38FEE4F8E2" bold="true" box="[189,267,1860,1886]" pageId="18" pageNumber="19">Fig. 6.</emphasis>
<taxonomicName id="4C7829E9FF8AFFAB4747CD38FDFAF8E2" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[276,533,1860,1886]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="18" pageNumber="19" phylum="Arthropoda" rank="species" species="triangulare">
<emphasis id="B90C8E78FF8AFFAB4747CD38FDFAF8E2" box="[276,533,1860,1886]" italics="true" pageId="18" pageNumber="19">Mysidium triangulare</emphasis>
</taxonomicName>
Wittmann 
<taxonomicNameLabel id="A23F3303FF8AFFAB44CBCD38FD19F8E2" box="[664,758,1860,1886]" pageId="18" pageNumber="19" rank="species">sp. nov.</taxonomicNameLabel>
, from Curaçao, paratypes. 
<emphasis id="B90C8E78FF8AFFAB4265CD38FBA4F8E2" bold="true" box="[1078,1099,1860,1886]" pageId="18" pageNumber="19">A</emphasis>
. ♀, 5.1 mm body length. 
<emphasis id="B90C8E78FF8AFFAB46EECD1BFF3EF83D" bold="true" box="[189,209,1895,1921]" pageId="18" pageNumber="19">B</emphasis>
, 
<emphasis id="B90C8E78FF8AFFAB46B0CD1BFF17F83D" bold="true" box="[227,248,1895,1921]" pageId="18" pageNumber="19">D</emphasis>
. ♀, 5.9 mm. 
<emphasis id="B90C8E78FF8AFFAB47F1CD1BFE58F83D" bold="true" box="[418,439,1895,1921]" pageId="18" pageNumber="19">C</emphasis>
. ♂, 5.4 mm. 
<emphasis id="B90C8E78FF8AFFAB4431CD1BFD75F83D" bold="true" box="[610,666,1895,1921]" pageId="18" pageNumber="19">E–G</emphasis>
. ♂, 5.5 mm. 
<emphasis id="B90C8E78FF8AFFAB4516CD1BFCB5F83D" bold="true" box="[837,858,1895,1921]" pageId="18" pageNumber="19">A</emphasis>
. Labrum, ventral view. 
<emphasis id="B90C8E78FF8AFFAB42D2CD1BFB7AF83D" bold="true" box="[1153,1173,1895,1921]" pageId="18" pageNumber="19">B</emphasis>
. Maxillula, rostral view. 
<emphasis id="B90C8E78FF8AFFAB4750CDF6FEF7F818" bold="true" box="[259,280,1930,1956]" pageId="18" pageNumber="19">C</emphasis>
. Maxilla, rostral view. 
<emphasis id="B90C8E78FF8AFFAB4478CDF6FDAFF818" bold="true" box="[555,576,1930,1956]" pageId="18" pageNumber="19">D</emphasis>
. First thoracopod (caudal view) with part of sternite 1 (ventral view). 
<emphasis id="B90C8E78FF8AFFAB46EECDD2FF3EF874" bold="true" box="[189,209,1966,1992]" pageId="18" pageNumber="19">E</emphasis>
. Second thoracic sympod with endopod, caudal view. 
<emphasis id="B90C8E78FF8AFFAB4501CDD2FC8BF874" bold="true" box="[850,868,1966,1992]" pageId="18" pageNumber="19">F</emphasis>
. Third thoracopod, caudal view. 
<emphasis id="B90C8E78FF8AFFAB42BACDD1FAEFF87B" bold="true" box="[1257,1280,1965,1991]" pageId="18" pageNumber="19">G</emphasis>
. Detail of panel (F) showing dactylus with nail.
</paragraph>
</caption>
<paragraph id="8BC7526AFF8BFFAA46EEC87FFADCFD35" blockId="19.[189,1399,514,649]" pageId="19" pageNumber="20">
FOREGUT (
<figureCitation id="13434EEFFF8BFFAA4760C87EFE5EFDA0" box="[307,433,514,541]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8A–F</figureCitation>
). Essentially as in 
<taxonomicName id="4C7829E9FF8BFFAA44DDC87FFCDDFDA0" authority="Wittmann &amp; Wirtz, 2019" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[654,818,514,540]" class="Echinoidea" family="Diadematidae" genus="Diadema" higherTaxonomySource="CoL" kingdom="Animalia" order="Diadematoida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="antillarum" status="sp. nov.">
<emphasis id="B90C8E78FF8BFFAA44DDC87FFCDDFDA0" box="[654,818,514,540]" italics="true" pageId="19" pageNumber="20">M. antillarum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23F3303FF8BFFAA4569C87FFC79FDA1" box="[826,918,515,541]" pageId="19" pageNumber="20" rank="species">sp. nov.</taxonomicNameLabel>
(
<figureCitation id="13434EEFFF8BFFAA45F5C87EFBDAFDA0" box="[934,1077,514,540]" captionStart="Fig. 11" captionStartId="33.[189,232,1860,1886]" captionTargetBox="[236,1355,266,1821]" captionTargetId="figure@33.[236,1355,266,1821]" captionTargetPageId="33" captionText="Fig. 11. Mysidium antillarum Wittmann sp. nov., from Curaçao, paratypes. A–E, G, J. ♀, 7.9 mm body length. F, K. ♂, 7.5 mm. H. ♀, 7.5 mm. A. Foregut; dorsal wall and some spines of superomedianum omitted. B–E. Details of panel (A) showing modified spines. F. Labium, caudal view. G. Maxillula, rostral view. H. Maxilla, rostral view. J. First thoracopod (caudal view) with sternites 1–6 (ventral view). K. Second thoracic sympod with endopod, rostral view." httpUri="https://zenodo.org/record/2584890/files/figure.png" pageId="19" pageNumber="20">Fig. 11A–E</figureCitation>
). As main differences from that species, 
<taxonomicName id="4C7829E9FF8BFFAA4702C85BFE12FDFC" authority="Wittmann &amp; Wirtz, 2019" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[337,509,550,576]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="triangulare" status="sp. nov.">
<emphasis id="B90C8E78FF8BFFAA4702C85BFE12FDFC" box="[337,509,550,576]" italics="true" pageId="19" pageNumber="20">M. triangulare</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23F3303FF8BFFAA4451C85BFDB3FDFD" box="[514,604,551,577]" pageId="19" pageNumber="20" rank="species">sp. nov.</taxonomicNameLabel>
shows less strongly serrated, apically pronged, large spines: on each lateral half there are two spines (
<figureCitation id="13434EEFFF8BFFAA441BC836FD4DFDD8" box="[584,674,586,612]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8E</figureCitation>
) on posterior part of lateralia; and a longer one (
<figureCitation id="13434EEFFF8BFFAA42BDC836FAA8FDD8" box="[1262,1351,586,612]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8F</figureCitation>
) on dorso-lateral infolding; the latter inserting in more median position than in 
<taxonomicName id="4C7829E9FF8BFFAA427DC813FB3EFD34" authority="Wittmann &amp; Wirtz, 2019" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[1070,1233,622,648]" class="Echinoidea" family="Diadematidae" genus="Diadema" higherTaxonomySource="CoL" kingdom="Animalia" order="Diadematoida" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="antillarum" status="sp. nov.">
<emphasis id="B90C8E78FF8BFFAA427DC813FB3EFD34" box="[1070,1233,622,648]" italics="true" pageId="19" pageNumber="20">M. antillarum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23F3303FF8BFFAA428BC813FADCFD35" box="[1240,1331,623,649]" pageId="19" pageNumber="20" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
<paragraph id="8BC7526AFF8BFFAA46EEC8CDFD99FB78" blockId="19.[189,1399,688,1221]" pageId="19" pageNumber="20">
THORAX OF BOTH SEXES (
<figureCitation id="13434EEFFF8BFFAA4786C8CDFDB9FD77" box="[469,598,688,715]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="19" pageNumber="20">Figs 5C–D</figureCitation>
, 
<figureCitation id="13434EEFFF8BFFAA4435C8CDFD42FD77" box="[614,685,689,715]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="19" pageNumber="20">6D–G</figureCitation>
, 
<figureCitation id="13434EEFFF8BFFAA44EDC8CDFCE7FD77" box="[702,776,689,715]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">7A–C</figureCitation>
). Carapace (
<figureCitation id="13434EEFFF8BFFAA45CFC8CDFBF7FD77" box="[924,1048,688,715]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="19" pageNumber="20">Fig. 5C–E</figureCitation>
) posteriorly emarginate, with well-rounded latero-terminal lobes; cervical sulcus strong; roughly V-shaped group of 11–14 pores (
<figureCitation id="13434EEFFF8BFFAA4695C885FEF1FCA8" box="[198,286,761,788]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="19" pageNumber="20">Fig. 5E</figureCitation>
) in front of cervical sulcus, transverse linear series of 13–18 pores (
<figureCitation id="13434EEFFF8BFFAA426BC885FB7CFCA8" box="[1080,1171,761,788]" captionStart="Fig. 5" captionStartId="17.[189,232,1788,1814]" captionTargetBox="[255,1331,265,1759]" captionTargetId="figure@17.[255,1331,265,1759]" captionTargetPageId="17" captionText="Fig. 5. Mysidium triangulare Wittmann sp. nov., from Curaçao, holotype (A) and paratypes (B–J). A. ♂, 5.2 mm body length. B. ♂, 5.4 mm. C–E. ♂, 5.0 mm. F, H. ♀, 5.9 mm. G. ♂, 5.5 mm. J. ♀, 5.1 mm. A. Cephalic region; right antennula and setae of antennal scale omitted. B. Mediodistal extension of left antennular trunk, dorsal. C. Carapace expanded on slide. D–E. Details of panel (C) showing cardial (D) and cervical (E) pore groups, pore diameters not to scale. F. Right antennula of female, dorsal view. G. Right antenna, ventral view. H. Right mandible with left masticatory process, rostral view. J. Labium, rostral view." httpUri="https://zenodo.org/record/2584878/files/figure.png" pageId="19" pageNumber="20">Fig. 5D</figureCitation>
) in cardial position (above heart). Sternites smooth; a plumose seta accompanied by a shorter barbed seta on the joint between each sternite and the corresponding thoracopods (
<figureCitation id="13434EEFFF8BFFAA45D2C93DFC0CFCE0" box="[897,995,833,860]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="19" pageNumber="20">Fig. 6D</figureCitation>
). Sizes of endopods and exopods increase from thoracopod 1 to 4 or 5 and decrease from 5 to 8. Basal plate of exopods 1–7 with large, well rounded latero-distal expansion (
<figureCitation id="13434EEFFF8BFFAA44D2C9F5FCEBFC18" box="[641,772,905,932]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="19" pageNumber="20">Figs 6D, F</figureCitation>
, 
<figureCitation id="13434EEFFF8BFFAA4541C9F5FCB2FC1F" box="[786,861,905,931]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">7A–B</figureCitation>
). Flagellum 8-segmented in exopod 1 versus 9-segmented in exopods 2–7. First endopod (
<figureCitation id="13434EEFFF8BFFAA4484C9D1FCDBFC74" box="[727,820,941,968]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="19" pageNumber="20">Fig. 6D</figureCitation>
) with well developed, setose endites from basis, ischium, merus. First thoracic epipod bilobate, with smooth margins, without seta. Endopods 1–2 with large dactylus and strong claw (
<figureCitation id="13434EEFFF8BFFAA4411C989FD2AFBAC" box="[578,709,1013,1040]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="19" pageNumber="20">Fig. 6D–E</figureCitation>
). Dactylus of thoracic endopod 2 with 3–6 modified and several smooth setae, no spine-like setae; modified setae each with two dense rows of strong, acute barbs along their median to subterminal portions. Endopods 3–7 with less stout, well developed dactylus bearing a long, needle-like claw (
<figureCitation id="13434EEFFF8BFFAA441BCE1EFD48FBC1" box="[584,679,1122,1149]" captionStart="Fig. 6" captionStartId="18.[189,232,1860,1886]" captionTargetBox="[235,1356,265,1822]" captionTargetId="figure@18.[235,1356,265,1822]" captionTargetPageId="18" captionText="Fig. 6. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A. ♀, 5.1 mm body length. B, D. ♀, 5.9 mm. C. ♂, 5.4 mm. E–G. ♂, 5.5 mm. A. Labrum, ventral view. B. Maxillula, rostral view. C. Maxilla, rostral view. D. First thoracopod (caudal view) with part of sternite 1 (ventral view). E. Second thoracic sympod with endopod, caudal view. F. Third thoracopod, caudal view. G. Detail of panel (F) showing dactylus with nail." httpUri="https://zenodo.org/record/2584880/files/figure.png" pageId="19" pageNumber="20">Fig. 6G</figureCitation>
); endopod 8 with seta-like claw (
<figureCitation id="13434EEFFF8BFFAA4262CE1EFB60FBC0" box="[1073,1167,1122,1148]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">Fig. 7C</figureCitation>
). Endopod 8 (when stretched) reaching backwards at most to end of pleonite 3 and forwards to maxillula; its carpopropodus measures 0.4–0.5 times telson length.
</paragraph>
<paragraph id="8BC7526AFF8BFFAA46EECE91FC92FA2B" blockId="19.[189,1399,1260,1431]" pageId="19" pageNumber="20">
THORACOPODS OF FEMALES (
<figureCitation id="13434EEFFF8BFFAA47AACE90FDB3FABB" box="[505,604,1260,1287]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">Figs 7A</figureCitation>
, 
<figureCitation id="13434EEFFF8BFFAA4439CE90FD61FABA" box="[618,654,1260,1286]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">8G</figureCitation>
). Basal plate of exopod 8 with short to indistinct latero-distal expansion; its flagellum only 8-segmented. Oostegites of thoracopods 7–8 densely fringed with setae, together forming a large brood chamber. Thoracopod 6 (
<figureCitation id="13434EEFFF8BFFAA4537CF48FC2DFAF3" box="[868,962,1332,1359]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">Fig. 7A</figureCitation>
) with rudimentary oostegite bearing 1–2 long setae at apex. These setae spinulose at least along their apical third. More such setae present in proximal portions of oostegite from thoracopod 7 (
<figureCitation id="13434EEFFF8BFFAA4542CF01FC80FA2B" box="[785,879,1405,1431]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8G</figureCitation>
).
</paragraph>
<paragraph id="8BC7526AFF8BFFAA46EECFBCFB11F9FA" blockId="19.[189,1398,1471,1606]" pageId="19" pageNumber="20">
THORACOPODS OF MALES AND PENIS (
<figureCitation id="13434EEFFF8BFFAA440FCFC3FD32FA65" box="[604,733,1471,1498]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">Fig. 7B–C</figureCitation>
). Basal plate of exopod 8 with yet distinct latero-distal expansion; its flagellum 9-segmented. Penes pear-shaped, apically widening; 0.9–1.0 times as long as merus of endopod 8. Penes apically bilobate, with row of 4–5 smooth, bent setae flanking the ejaculatory opening. Two additional, smaller, straight setae subapically on margin opposite to bent setae.
</paragraph>
<paragraph id="8BC7526AFF8BFFAA46EECC12FE30F8DC" blockId="19.[189,1399,1645,1888]" pageId="19" pageNumber="20">
PLEON (
<figureCitation id="13434EEFFF8BFFAA4747CC12FE73F934" box="[276,412,1646,1672]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">Figs 7D–M</figureCitation>
, 
<figureCitation id="13434EEFFF8BFFAA47F4CC12FE03F934" box="[423,492,1646,1672]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">8H–L</figureCitation>
). Pleonites 1–5 are 0.6–0.7, 0.7–0.8, 0.7–0.9, 0.8–0.9 or 0.7–0.9 times as long as pleonite 6, respectively. Scutellum paracaudale (
<figureCitation id="13434EEFFF8BFFAA454FCCEEFC7BF910" box="[796,916,1682,1708]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8H, J</figureCitation>
) triangular, apically pointed to narrowly rounded; margins weakly concave to convex. Uropodal endopod (
<figureCitation id="13434EEFFF8BFFAA459BCCCAFBCAF96C" box="[968,1061,1718,1744]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8K</figureCitation>
) 1.0–1.3 times, exopod 1.4– 1.7 times as long as pleonite 6. Length of exopod 7–9 times maximum width. Exopod extends 0.2–0.3 times its length beyond endopod or 0.5–0.6 times beyond telson; endopod 0.3–0.5 times its length beyond telson. Telson (
<figureCitation id="13434EEFFF8BFFAA479CCD5EFDC7F880" box="[463,552,1826,1852]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="19" pageNumber="20">Fig. 8L</figureCitation>
) 0.5–0.6 times as long as exopod of uropods, 0.7–0.8 times endopod or 0.8–0.9 times pleonite 6.
</paragraph>
<paragraph id="8BC7526AFF8BFFAA46EECDF5FB3EF857" blockId="19.[189,1399,1928,2027]" pageId="19" pageNumber="20">
PLEOPODS OF FEMALES (
<figureCitation id="13434EEFFF8BFFAA4798CDF4FDBFF81F" box="[459,592,1928,1955]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="19" pageNumber="20">Fig. 7D–G</figureCitation>
). Pleopods 1–5 subequal in length. Pleopods 1–2 reduced to small bilobate plates, pleopods 3–5 to small, setose rods. Pleopods 1–4 with a ventro-laterally directed fan of plumose setae. Pleopod 1 with clearly the largest setae, although not as large as in males.
</paragraph>
<caption id="DF0702E2FF8CFFAD46EECD38FC75F857" httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="20" pageNumber="21" startId="20.[189,232,1860,1886]" targetBox="[234,1355,265,1821]" targetPageId="20">
<paragraph id="8BC7526AFF8CFFAD46EECD38FC75F857" blockId="20.[189,1399,1860,2028]" pageId="20" pageNumber="21">
<emphasis id="B90C8E78FF8CFFAD46EECD38FEE6F8E3" bold="true" box="[189,265,1860,1887]" pageId="20" pageNumber="21">Fig. 7.</emphasis>
<taxonomicName id="4C7829E9FF8CFFAD475CCD39FDE1F8E3" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[271,526,1861,1887]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="triangulare">
<emphasis id="B90C8E78FF8CFFAD475CCD39FDE1F8E3" box="[271,526,1861,1887]" italics="true" pageId="20" pageNumber="21">Mysidium triangulare</emphasis>
</taxonomicName>
Wittmann 
<taxonomicNameLabel id="A23F3303FF8CFFAD44DECD39FD07F8E3" box="[653,744,1861,1887]" pageId="20" pageNumber="21" rank="species">sp. nov.</taxonomicNameLabel>
, from Curaçao, paratypes. 
<emphasis id="B90C8E78FF8CFFAD424CCD38FBB9F8E3" bold="true" box="[1055,1110,1860,1887]" pageId="20" pageNumber="21">A, D</emphasis>
. ♀, 5.4 mm body length. 
<emphasis id="B90C8E78FF8CFFAD46EECD14FF1BF83E" bold="true" box="[189,244,1896,1922]" pageId="20" pageNumber="21">B–C</emphasis>
, 
<emphasis id="B90C8E78FF8CFFAD4757CD14FED2F83E" bold="true" box="[260,317,1896,1922]" pageId="20" pageNumber="21">K–L</emphasis>
. ♂, 5.5 mm. 
<emphasis id="B90C8E78FF8CFFAD478DCD14FDF8F83E" bold="true" box="[478,535,1896,1922]" pageId="20" pageNumber="21">E–G</emphasis>
. ♀, 5.1 mm. 
<emphasis id="B90C8E78FF8CFFAD44EBCD14FD20F83E" bold="true" box="[696,719,1896,1922]" pageId="20" pageNumber="21">H</emphasis>
, 
<emphasis id="B90C8E78FF8CFFAD448CCD14FD01F83E" bold="true" box="[735,750,1896,1922]" pageId="20" pageNumber="21">J</emphasis>
, 
<emphasis id="B90C8E78FF8CFFAD44AECD14FCF6F83E" bold="true" box="[765,793,1896,1922]" pageId="20" pageNumber="21">M</emphasis>
. ♂ 5.4 mm. 
<emphasis id="B90C8E78FF8CFFAD45E1CD14FC28F83E" bold="true" box="[946,967,1896,1922]" pageId="20" pageNumber="21">A</emphasis>
. Sixth thoracopod with rudimentary oostegite, caudal view. 
<emphasis id="B90C8E78FF8CFFAD4787CDF7FE07F819" bold="true" box="[468,488,1931,1957]" pageId="20" pageNumber="21">B</emphasis>
. Eighth thoracopod with penis, rostral view. 
<emphasis id="B90C8E78FF8CFFAD4250CDF7FBF7F819" bold="true" box="[1027,1048,1931,1957]" pageId="20" pageNumber="21">C</emphasis>
. Detail of panel (B) showing dactylus with nail. 
<emphasis id="B90C8E78FF8CFFAD47E2CDD2FE03F874" bold="true" box="[433,492,1966,1992]" pageId="20" pageNumber="21">D–G</emphasis>
. Series of female pleopods 1–4, rostral view. 
<emphasis id="B90C8E78FF8CFFAD426ECDD2FB95F874" bold="true" box="[1085,1146,1966,1992]" pageId="20" pageNumber="21">H–K</emphasis>
, 
<emphasis id="B90C8E78FF8CFFAD42DCCDD2FB44F874" bold="true" box="[1167,1195,1966,1992]" pageId="20" pageNumber="21">M</emphasis>
. Series of male pleopods 1–3, 5, rostral view. 
<emphasis id="B90C8E78FF8CFFAD444DCDAEFDDDF850" bold="true" box="[542,562,2002,2028]" pageId="20" pageNumber="21">L</emphasis>
. Male pleopod 4, caudal view.
</paragraph>
</caption>
<caption id="DF0702E2FF8DFFAC46EECD38FABDF856" httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="21" pageNumber="22" startId="21.[189,232,1860,1886]" targetBox="[237,1356,265,1819]" targetPageId="21">
<paragraph id="8BC7526AFF8DFFAC46EECD38FABDF856" blockId="21.[189,1399,1860,2027]" pageId="21" pageNumber="22">
<emphasis id="B90C8E78FF8DFFAC46EECD38FEE6F8E2" bold="true" box="[189,265,1860,1886]" pageId="21" pageNumber="22">Fig. 8.</emphasis>
<taxonomicName id="4C7829E9FF8DFFAC475CCD38FDE1F8E2" authorityName="Wittmann &amp; Wirtz" authorityYear="2019" box="[271,526,1860,1886]" class="Malacostraca" family="Mysidae" genus="Mysidium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="21" pageNumber="22" phylum="Arthropoda" rank="species" species="triangulare">
<emphasis id="B90C8E78FF8DFFAC475CCD38FDE1F8E2" box="[271,526,1860,1886]" italics="true" pageId="21" pageNumber="22">Mysidium triangulare</emphasis>
</taxonomicName>
Wittmann 
<taxonomicNameLabel id="A23F3303FF8DFFAC44DECD38FD06F8E2" box="[653,745,1860,1886]" pageId="21" pageNumber="22" rank="species">sp. nov.</taxonomicNameLabel>
, from Curaçao, paratypes. 
<emphasis id="B90C8E78FF8DFFAC4273CD38FBBAF8E2" bold="true" box="[1056,1109,1860,1886]" pageId="21" pageNumber="22">A–F</emphasis>
. ♀, 5.9 mm body length. 
<emphasis id="B90C8E78FF8DFFAC46EECD1BFF1AF83D" bold="true" box="[189,245,1895,1921]" pageId="21" pageNumber="22">G, J</emphasis>
. ♀, 5.1 mm. 
<emphasis id="B90C8E78FF8DFFAC47CDCD1BFDEFF83D" bold="true" box="[414,512,1895,1921]" pageId="21" pageNumber="22">H, K–L</emphasis>
. ♂, 5.5 mm. 
<emphasis id="B90C8E78FF8DFFAC44F9CD1BFD50F83D" bold="true" box="[682,703,1895,1921]" pageId="21" pageNumber="22">A</emphasis>
. Foregut; dorsal wall omitted. 
<emphasis id="B90C8E78FF8DFFAC426FCD1BFB9FF83D" bold="true" box="[1084,1136,1895,1921]" pageId="21" pageNumber="22">B–F</emphasis>
. Details of panel (A) showing modified spines. 
<emphasis id="B90C8E78FF8DFFAC47BDCDF6FDEAF818" bold="true" box="[494,517,1930,1956]" pageId="21" pageNumber="22">G</emphasis>
. Basal half of thoracopod 7 with right oostegite, lateral view. 
<emphasis id="B90C8E78FF8DFFAC4286CDF6FB03F818" bold="true" box="[1237,1260,1930,1956]" pageId="21" pageNumber="22">H</emphasis>
, 
<emphasis id="B90C8E78FF8DFFAC42A9CDF6FAE6F818" bold="true" box="[1274,1289,1930,1956]" pageId="21" pageNumber="22">J</emphasis>
. Variants of scutellum paracaudale, lateral view. 
<emphasis id="B90C8E78FF8DFFAC44D3CDD2FD78F874" bold="true" box="[640,663,1966,1992]" pageId="21" pageNumber="22">K</emphasis>
. Uropods, ventral view; setae omitted. 
<emphasis id="B90C8E78FF8DFFAC420ECDD2FB9EF874" bold="true" box="[1117,1137,1966,1992]" pageId="21" pageNumber="22">L</emphasis>
. Telson. 
<emphasis id="B90C8E78FF8DFFAC428BCDD2FB1BF874" bold="true" box="[1240,1268,1966,1992]" pageId="21" pageNumber="22">M</emphasis>
. Nauplioid larva at substage N2, lateral view. 
<emphasis id="B90C8E78FF8DFFAC4402CDADFD89F857" bold="true" box="[593,614,2001,2027]" pageId="21" pageNumber="22">N</emphasis>
. Detail showing tip of abdomen in another nauplioid specimen.
</paragraph>
</caption>
<paragraph id="8BC7526AFF8EFFAF46EECB70FC00FD85" blockId="22.[189,1399,267,570]" pageId="22" pageNumber="23">
PLEOPODS OF MALES (
<figureCitation id="13434EEFFF8EFFAF47E3CB77FDD6FE9A" box="[432,569,267,294]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="22" pageNumber="23">Fig. 7H–M</figureCitation>
). Length increases from pleopod 1 to 4. Pleopod 5 is about the same length as pleopod 1, but less stout. Pleopods 1–3 with a ventro-laterally directed fan of plumose setae; pleopod 1 with the largest setae of that kind. Fourth pleopod reaching to terminal 50–80% of pleonite 6; its subapical seta reaching up to apex of telson. Its four-segmented exopod with basal segment longest, second segment longer than third, third segment longer than fourth. Subterminal segment of exopod with a very long seta bearing dense series of minute bristles along its distal half; short terminal segment with comparatively large but shorter seta at tip, this seta with characteristic set of barbs (
<figureCitation id="13434EEFFF8EFFAF429ECBA6FAC9FE49" box="[1229,1318,474,501]" captionStart="Fig. 7" captionStartId="20.[189,232,1860,1886]" captionTargetBox="[234,1355,265,1821]" captionTargetId="figure@20.[234,1355,265,1821]" captionTargetPageId="20" captionText="Fig. 7. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A, D. ♀, 5.4 mm body length. B–C, K–L. ♂, 5.5 mm. E–G. ♀, 5.1 mm. H, J, M. ♂ 5.4 mm. A. Sixth thoracopod with rudimentary oostegite, caudal view. B. Eighth thoracopod with penis, rostral view. C. Detail of panel (B) showing dactylus with nail. D–G. Series of female pleopods 1–4, rostral view. H–K, M. Series of male pleopods 1–3, 5, rostral view. L. Male pleopod 4, caudal view." httpUri="https://zenodo.org/record/2584882/files/figure.png" pageId="22" pageNumber="23">Fig. 7L</figureCitation>
) along its distal half. Endopod with apical seta 2.0–2.8 times endopod length. Sympod with field of scales on its medial widening, or in analogous position upon missing widening.
</paragraph>
<paragraph id="8BC7526AFF8EFFAF46EEC81CFD86FCB8" blockId="22.[189,1399,608,773]" pageId="22" pageNumber="23">
STATOLITHS. Composed of fluorite; shape ellipsoidal to spherical in dorsal view (
<figureCitation id="13434EEFFF8EFFAF42C3C81CFB1DFDC6" box="[1168,1266,608,634]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="22" pageNumber="23">Fig. 8K</figureCitation>
); discoidal in lateral view, maximum diameter 89–107 µm, thickness 45–54 µm, measured in 
<specimenCount id="9D7E99E3FF8EFFAF42CFC8FFFAE3FD21" box="[1180,1292,643,669]" pageId="22" pageNumber="23" type="adult">10 adults</specimenCount>
. Tegmen moderately, though always distinctly convex; fundus weakly concave. Sagittal section very similar to that figured by Wittmann 
<emphasis id="B90C8E78FF8EFFAF47A8C8B5FDD6FD5E" box="[507,569,712,738]" italics="true" pageId="22" pageNumber="23">et al.</emphasis>
(1993: fig. 6P) for 
<taxonomicName id="4C7829E9FF8EFFAF4563C8B5FAEBFD5E" authority="S.I. Smith, 1873" authorityName="S. I. Smith" authorityYear="1873" box="[816,1284,712,738]" class="Malacostraca" family="Mysidae" genus="Heteromysis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Mysida" pageId="22" pageNumber="23" phylum="Arthropoda" rank="species" species="formosa">
<emphasis id="B90C8E78FF8EFFAF4563C8B5FBC2FD5E" box="[816,1069,712,738]" italics="true" pageId="22" pageNumber="23">Heteromysis formosa</emphasis>
<bibRefCitation id="EFE92F9BFF8EFFAF426AC8B4FAEBFD5E" author="Smith S. I." box="[1081,1284,712,738]" pageId="22" pageNumber="23" pagination="1 - 42" refId="ref23339" refString="Smith S. I. 1873. Notice of the Crustacea collected by Prof. C. F. Hartt on the coast of Brazil in 1867. Transactions of the Connecticut Academy of Arts and Sciences 2: 1 - 42, 1 pl. https: // doi. org / 10.5962 / bhl. part. 20634" type="journal article" year="1873">
S.I. 
<collectingRegion id="49BC9C88FF8EFFAF423EC8B4FB59FD5E" box="[1133,1206,712,738]" country="Bermuda" name="Smith's" pageId="22" pageNumber="23">Smith</collectingRegion>
, 1873
</bibRefCitation>
</taxonomicName>
. Statolith formula 2 + 3 + 1 + (8–13) = 14–19.
</paragraph>
<paragraph id="8BC7526AFF8EFFAF46EEC957FC4DFCDB" blockId="22.[189,1398,811,872]" pageId="22" pageNumber="23">
NAUPLIOID LARVAE (
<figureCitation id="13434EEFFF8EFFAF47CFC957FDCCFCF9" box="[412,547,811,837]" captionStart="Fig. 8" captionStartId="21.[189,232,1860,1886]" captionTargetBox="[237,1356,265,1819]" captionTargetId="figure@21.[237,1356,265,1819]" captionTargetPageId="21" captionText="Fig. 8. Mysidium triangulare Wittmann sp. nov., from Curaçao, paratypes. A–F. ♀, 5.9 mm body length. G, J. ♀, 5.1 mm. H, K–L. ♂, 5.5 mm. A. Foregut; dorsal wall omitted. B–F. Details of panel (A) showing modified spines. G. Basal half of thoracopod 7 with right oostegite, lateral view. H, J. Variants of scutellum paracaudale, lateral view. K. Uropods, ventral view; setae omitted. L. Telson. M. Nauplioid larva at substage N2, lateral view. N. Detail showing tip of abdomen in another nauplioid specimen." httpUri="https://zenodo.org/record/2584884/files/figure.png" pageId="22" pageNumber="23">Fig. 8M–N</figureCitation>
). Smooth cuticle all around, except for a pair of minute furcal processes and a number of minute setae on the blunt end of the abdomen.
</paragraph>
</subSubSection>
<subSubSection id="C36201E1FF8EFFAF46EEC9F2FC66FC44" pageId="22" pageNumber="23" type="distribution">
<paragraph id="8BC7526AFF8EFFAF46EEC9F2FE01FC14" blockId="22.[189,494,910,936]" box="[189,494,910,936]" pageId="22" pageNumber="23">
<heading id="D08FE506FF8EFFAF46EEC9F2FE01FC14" bold="true" box="[189,494,910,936]" fontSize="11" level="3" pageId="22" pageNumber="23" reason="3">
<emphasis id="B90C8E78FF8EFFAF46EEC9F2FE01FC14" bold="true" box="[189,494,910,936]" pageId="22" pageNumber="23">Distribution and habitat</emphasis>
</heading>
</paragraph>
<paragraph id="8BC7526AFF8EFFAF46EEC9C0FC66FC44" blockId="22.[189,1399,956,1017]" pageId="22" pageNumber="23">
So far only known from euhaline, sublittoral waters of 
<collectingCountry id="F36F12FAFF8EFFAF450EC9C0FC50FC6A" box="[861,959,956,982]" name="Curaçao" pageId="22" pageNumber="23">Curaçao</collectingCountry>
(12° N), where the mysids occur in swarms hovering during daytime around and between corals.
</paragraph>
</subSubSection>
</treatment>
</document>