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<document id="122ECCDA6E886C45208A9D3FD0A7717A" ID-DOI="10.1080/00222930902894419" ID-ISSN="1464-5262" ID-Zenodo-Dep="5216383" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629289679206" checkinUser="felipe" docAuthor="Suárez-Morales, Eduardo &amp; Morales-Ramírez, Alvaro" docDate="2009" docId="03ADD769D428816AECB6FA5754D9CD80" docLanguage="en" docName="JNatHist.43.21-22.1257-1271.pdf" docOrigin="Journal of Natural History (J. Nat. Hist.) 43 (21 - 22)" docSource="http://dx.doi.org/10.1080/00222930902894419" docStyle="DocumentStyle:FCA295E821436EF9307F50C7AC261B53.5:JNatHist.2008-2012.journal_article.1cover" docStyleId="FCA295E821436EF9307F50C7AC261B53" docStyleName="JNatHist.2008-2012.journal_article.1cover" docStyleVersion="5" docTitle="Monstrillopsis chathamensis Suárez-Morales &amp; Morales-Ramírez 2009, sp. nov." docType="treatment" docVersion="3" lastPageNumber="1269" masterDocId="FF94AF11D4218167ED5EFFD8573ACE67" masterDocTitle="New species of Monstrilloida (Crustacea: Copepoda) from the Eastern Tropical Pacific" masterLastPageNumber="1271" masterPageNumber="1257" pageNumber="1265" updateTime="1699066475799" updateUser="plazi" zenodo-license-document="CLOSED">
<mods:mods id="3543A737CDAA05F09FA5D9324F6F6BC9" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="649CF5435EAA378F07A69BBE9C97BD7C">
<mods:title id="F33966285DB58B3B90159755EFD1EDE0">New species of Monstrilloida (Crustacea: Copepoda) from the Eastern Tropical Pacific</mods:title>
</mods:titleInfo>
<mods:name id="9DCBCB66554D2D74F73CED9C6DBBF934" type="personal">
<mods:role id="C35DC15ABA6C39F68029D90F9945A73A">
<mods:roleTerm id="2AC6A77E7273977C87CAD06F43DC61D3">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="B03A4304983395A736F3648C0D5B6208">Suárez-Morales, Eduardo</mods:namePart>
</mods:name>
<mods:name id="957F746F66B2D8C0EA96CB5AE9FAA646" type="personal">
<mods:role id="3693FF47A9853F012678C569F1B608A7">
<mods:roleTerm id="93C9811373D353944A244D2AF1E8F894">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="79A45B3028609389CAFD49A0D70ECF1B">Morales-Ramírez, Alvaro</mods:namePart>
</mods:name>
<mods:typeOfResource id="0E0B81310E4041656997505909F571BC">text</mods:typeOfResource>
<mods:relatedItem id="3185D3DDC6FBC402B3C75CE048C6FB93" type="host">
<mods:titleInfo id="72A2EF0AFC4D95F1280D45F659AF711D">
<mods:title id="48CA16C384D69A997A4DA346321B16F6">Journal of Natural History</mods:title>
</mods:titleInfo>
<mods:part id="EAFD3E9B104D46B0CCEDC86ED2BCE05F">
<mods:date id="5E59FC18251E69DA2CE0747925E08E65">2009</mods:date>
<mods:detail id="4764937ADA808F8A4226D73DA2C084E2" type="series">
<mods:title id="A06B346B4364DD66F1C6982B55D60ED4">J. Nat. Hist.</mods:title>
</mods:detail>
<mods:detail id="B67CEA53EFD50DD3A1639C81335DC7AD" type="pubDate">
<mods:number id="B5C9BA5043A6A56CE7CB64FF46902398">2009-05-21</mods:number>
</mods:detail>
<mods:detail id="9D7AE714A27ECA83B93BFD7265449CE4" type="volume">
<mods:number id="AA3B593A9AAD35EB893FA2D28CF3E100">43</mods:number>
</mods:detail>
<mods:detail id="260EB8B349568CB86F4876B8F35B73C4" type="issue">
<mods:number id="132ADA792BC612AF1675D1672241A3F1">21 - 22</mods:number>
</mods:detail>
<mods:extent id="56F9C39F73240D7F243705B12AF7581E" unit="page">
<mods:start id="E173A95CB8C0611ECCA9B4791BC02F84">1257</mods:start>
<mods:end id="CC6603CEA2A6E5D37ED71F90662AAE59">1271</mods:end>
</mods:extent>
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<mods:location id="9577FF6DA14DB8BEEE5F4630D2F2B1AC">
<mods:url id="64E65779707A4FF54306F763F52232F9">http://dx.doi.org/10.1080/00222930902894419</mods:url>
</mods:location>
<mods:classification id="CA55E9E36EB06B86E23A70FBCB5E77DC">journal article</mods:classification>
<mods:identifier id="782D23712FD214F219A7940363A526A7" type="DOI">10.1080/00222930902894419</mods:identifier>
<mods:identifier id="4D5CB925E8BDBEEDED4231C9E2F45CB4" type="ISSN">1464-5262</mods:identifier>
<mods:identifier id="6C7E021F73073F7F6E8076DD4794CFC0" type="Zenodo-Dep">5216383</mods:identifier>
<mods:identifier id="36B6AB83B133CEC74D9C03AF99FC37AC" type="ZooBank">2EB343F4-0486-4096-B53E-C650357406B0</mods:identifier>
</mods:mods>
<treatment id="03ADD769D428816AECB6FA5754D9CD80" LSID="urn:lsid:plazi:treatment:03ADD769D428816AECB6FA5754D9CD80" httpUri="http://treatment.plazi.org/id/03ADD769D428816AECB6FA5754D9CD80" lastPageId="13" lastPageNumber="1269" pageId="9" pageNumber="1265">
<subSubSection id="C31E35F4D428816EECB6FA5754BACBC0" box="[488,896,1423,1447]" pageId="9" pageNumber="1265" type="nomenclature">
<paragraph id="8BBB667FD428816EECB6FA5754BACBC0" blockId="9.[488,896,1391,1479]" box="[488,896,1423,1447]" pageId="9" pageNumber="1265">
<heading id="D0F3D113D428816EECB6FA5754BACBC0" box="[488,896,1423,1447]" centered="true" fontSize="36" level="2" pageId="9" pageNumber="1265" reason="7">
<taxonomicName id="4C041DFCD428816EECB6FA57541ACBC0" authority="Suárez-Morales &amp; Morales-Ramírez, 2009" authorityName="Suárez-Morales &amp; Morales-Ramírez" authorityYear="2009" box="[488,800,1423,1447]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="9" pageNumber="1265" phylum="Arthropoda" rank="species" species="chathamensis" status="sp. nov.">
<emphasis id="B970BA6DD428816EECB6FA57541ACBC0" bold="true" box="[488,800,1423,1447]" italics="true" pageId="9" pageNumber="1265">Monstrillopsis chathamensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2430716D428816EEE79FA4854BACBC0" box="[807,896,1424,1447]" pageId="9" pageNumber="1265" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C31E35F4D428816AEF36FA7754D9CD80" lastPageId="13" lastPageNumber="1269" pageId="9" pageNumber="1265" type="description">
<paragraph id="8BBB667FD428816EEF36FA7755C5CBA0" blockId="9.[488,896,1391,1479]" box="[616,767,1455,1479]" pageId="9" pageNumber="1265">
(
<figureCitation id="133F7AFAD428816EEF2EFA7755E7CBA0" box="[624,733,1455,1479]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="9" pageNumber="1265">Figures 4</figureCitation>
,
<figureCitation id="133F7AFAD428816EEFB7FA7755CDCBA0" box="[745,759,1455,1479]" captionStart="Figure 5" captionStartId="11.[219,286,1069,1091]" captionTargetBox="[352,1032,179,1036]" captionTargetId="figure-227@11.[352,1032,178,1036]" captionTargetPageId="11" captionText="Figure 5. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short." figureDoi="http://doi.org/10.5281/zenodo.5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="9" pageNumber="1265">5</figureCitation>
)
</paragraph>
<paragraph id="8BBB667FD428816EED8AFA20569DC877" blockId="9.[212,423,1528,1552]" box="[212,423,1528,1552]" pageId="9" pageNumber="1265">
<emphasis id="B970BA6DD428816EED8AFA20569DC877" box="[212,423,1528,1552]" italics="true" pageId="9" pageNumber="1265">Material examined</emphasis>
</paragraph>
<paragraph id="8BBB667FD428816EED8AF9F856D5C8F0" blockId="9.[212,1173,1567,1687]" pageId="9" pageNumber="1265">
<materialsCitation id="3B6C6C22D428816EED8AF9F856D5C8F0" collectorName="Specimen &amp; November &amp; J. Picado" country="Costa Rica" county="Coco" latitude="5.550439" location="Adult" longLatPrecision="1" longitude="-87.03849" municipality="Chatham Bay" pageId="9" pageNumber="1265" specimenCount="1" typeStatus="holotype">
<emphasis id="B970BA6DD428816EED8AF9F85678C85F" box="[212,322,1568,1592]" italics="true" pageId="9" pageNumber="1265">
<typeStatus id="54BFD8DDD428816EED8AF9F85605C85F" box="[212,319,1568,1592]" pageId="9" pageNumber="1265" type="holotype">Holotype</typeStatus>
.
</emphasis>
<location id="8EDB30A4D428816EEC16F9C756B0C850" LSID="urn:lsid:plazi:treatment:03ADD769D428816AECB6FA5754D9CD80:8EDB30A4D428816EEC16F9C756B0C850" box="[328,394,1567,1591]" country="Costa Rica" county="Coco" latitude="5.550439" longLatPrecision="1" longitude="-87.03849" municipality="Chatham Bay" name="Adult" pageId="9" pageNumber="1265">Adult</location>
male, dissected, permanent slide mounted in glycerine sealed with Entellan. Plankton collection,
<collectingMunicipality id="6BDFFC05D428816EEF41F9E75580C83F" box="[543,698,1599,1624]" pageId="9" pageNumber="1265">Chatham Bay</collectingMunicipality>
, Isla del
<collectingCounty id="62DA1EF3D428816EEE44F9E7546DC830" box="[794,855,1599,1623]" pageId="9" pageNumber="1265">Coco</collectingCounty>
,
<collectingCountry id="F31326EFD428816EEE3DF9E754E7C830" box="[867,989,1599,1623]" name="Costa Rica" pageId="9" pageNumber="1265">Costa Rica</collectingCountry>
(
<geoCoordinate id="EE3000B8D428816EEEB2F9E753B5C830" box="[1004,1167,1598,1623]" degrees="5" direction="north" minutes="33" orientation="latitude" pageId="9" pageNumber="1265" precision="1" seconds="01.58" value="5.550439">5°33′ 01.58′′ N</geoCoordinate>
,
<geoCoordinate id="EE3000B8D428816EED8AF98756B3C810" box="[212,393,1630,1655]" degrees="87" direction="west" minutes="02" orientation="longitude" pageId="9" pageNumber="1265" precision="1" seconds="18.57" value="-87.03849">87°02′ 18.57′′ W</geoCoordinate>
).
<collectorName id="26F103A9D428816EECC5F987553EC810" box="[411,516,1631,1655]" pageId="9" pageNumber="1265">Specimen</collectorName>
collected 12
<collectorName id="26F103A9D428816EEFCEF987543DC810" box="[656,775,1631,1655]" pageId="9" pageNumber="1265">November</collectorName>
, 2000, by
<collectorName id="26F103A9D428816EEE2BF9B854E6C810" box="[885,988,1631,1655]" pageId="9" pageNumber="1265">J. Picado</collectorName>
, semi-permanent slide (ECO-CHZ-03958).
</materialsCitation>
</paragraph>
<caption id="DF7B36F7D42B816DEDCEFBFC530FCA12" ID-DOI="http://doi.org/10.5281/zenodo.5216391" ID-Zenodo-Dep="5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="10" pageNumber="1266" startId="10.[144,211,1060,1082]" targetBox="[284,964,174,1027]" targetPageId="10">
<paragraph id="8BBB667FD42B816DEDCEFBFC530FCA12" blockId="10.[144,1104,1060,1141]" pageId="10" pageNumber="1266">
Figure 4.
<taxonomicName id="4C041DFCD42B816DEDA6FBFD552BCA5C" authority="Suárez-Morales &amp; Morales-Ramírez, 2009" authorityName="Suárez-Morales &amp; Morales-Ramírez" authorityYear="2009" box="[248,529,1061,1083]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="10" pageNumber="1266" phylum="Arthropoda" rank="species" species="chathamensis" status="sp. nov.">
<emphasis id="B970BA6DD42B816DEDA6FBFD552BCA5C" box="[248,529,1061,1083]" italics="true" pageId="10" pageNumber="1266">Monstrillopsis chathamensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2430716D42B816DEF46FBFD5553CA5D" box="[536,617,1061,1082]" pageId="10" pageNumber="1266" rank="species">sp. nov.</taxonomicNameLabel>
Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view.
</paragraph>
</caption>
<paragraph id="8BBB667FD42B816DEDCEFB015648CB76" blockId="10.[144,1104,1241,1297]" pageId="10" pageNumber="1266">
<emphasis id="B970BA6DD42B816DEDCEFB015632CA96" box="[144,264,1241,1265]" italics="true" pageId="10" pageNumber="1266">
<typeStatus id="54BFD8DDD42B816DEDCEFB01563ECA96" box="[144,260,1241,1265]" pageId="10" pageNumber="1266" type="paratype">Paratypes</typeStatus>
.
</emphasis>
Four adult males, same date and locality, undissected, ethanol-preserved (ECO-CHZ-03959).
</paragraph>
<paragraph id="8BBB667FD42B816DEDCEFA99562ACB3E" blockId="10.[144,272,1345,1369]" box="[144,272,1345,1369]" pageId="10" pageNumber="1266">
<emphasis id="B970BA6DD42B816DEDCEFA99562ACB3E" box="[144,272,1345,1369]" italics="true" pageId="10" pageNumber="1266">Description</emphasis>
</paragraph>
<paragraph id="8BBB667FD42B816CEDCEFAB15534CB05" blockId="10.[144,1104,1385,1697]" lastBlockId="11.[212,1172,1322,1698]" lastPageId="11" lastPageNumber="1267" pageId="10" pageNumber="1266">
Body length of adult male
<typeStatus id="54BFD8DDD42B816DECE3FAB1551FCBE6" box="[445,549,1385,1409]" pageId="10" pageNumber="1266" type="holotype">holotype</typeStatus>
:
<quantity id="4CFCCB9AD42B816DEF71FAB155AECBE6" box="[559,660,1385,1409]" metricMagnitude="-4" metricUnit="m" metricValue="9.3" pageId="10" pageNumber="1266" unit="mm" value="0.93">0.93 mm</quantity>
, measured in dorsal view from anterior end of cephalothorax to posterior edge of anal somite, caudal rami excluded. Mean length of specimens:
<quantity id="4CFCCB9AD42B816DECDBFA7156D4CBA6" box="[389,494,1449,1473]" metricMagnitude="-4" metricUnit="m" metricValue="9.3" pageId="10" pageNumber="1266" unit="mm" value="0.93">0.93 mm</quantity>
, range:
<quantity id="4CFCCB9AD42B816DEF12FA7155C8CBA6" box="[588,754,1449,1473]" metricMagnitude="-4" metricUnit="m" metricValue="9.25" metricValueMax="9.5" metricValueMin="9.0" pageId="10" pageNumber="1266" unit="mm" value="0.925" valueMax="0.95" valueMin="0.9">0.90–0.95 mm</quantity>
. Cephalothorax incorporating first pedigerous somite representing about 51% of total body length (
<figureCitation id="133F7AFAD42B816DEEEEFA115379CB86" box="[944,1091,1481,1505]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="10" pageNumber="1266">Figure 4A,B</figureCitation>
). Body slender, anterior half of cephalothorax wider than posterior half. Middle part of cephalothorax narrow, gradually expanding posteriorly. Dorsal ocelli present, pigment cups relatively small, separated by the distance of about two-thords of the ocellus diameter, poorly developed, weakly pigmented, rounded in dorsal view. Ventrally, anterior cephalic surface with reduced, faint ornamentation represented by a few transverse striations between oral papilla and antennule bases. Oral papilla reduced, weakly protuberant, located about 0.11 of way back along ventral surface of cephalothorax (
<figureCitation id="133F7AFAD42A816CECD2FA92553BCB05" box="[396,513,1354,1378]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="11" pageNumber="1267">Figure 4B</figureCitation>
).
</paragraph>
<caption id="DF7B36F7D42A816CED85FBF556D9CAB2" ID-DOI="http://doi.org/10.5281/zenodo.5216395" ID-Zenodo-Dep="5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="11" pageNumber="1267" startId="11.[219,286,1069,1091]" targetBox="[352,1032,179,1036]" targetPageId="11">
<paragraph id="8BBB667FD42A816CED85FBF556D9CAB2" blockId="11.[219,1164,1069,1237]" pageId="11" pageNumber="1267">
Figure 5.
<taxonomicName id="4C041DFCD42A816CEC16FBF5555CCA24" authority="Suárez-Morales &amp; Morales-Ramírez, 2009" authorityName="Suárez-Morales &amp; Morales-Ramírez" authorityYear="2009" box="[328,614,1069,1091]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="11" pageNumber="1267" phylum="Arthropoda" rank="species" species="chathamensis" status="sp. nov.">
<emphasis id="B970BA6DD42A816CEC16FBF5555CCA24" box="[328,614,1069,1091]" italics="true" pageId="11" pageNumber="1267">Monstrillopsis chathamensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2430716D42A816CEF2FFBF555FDCA25" box="[625,711,1069,1090]" pageId="11" pageNumber="1267" rank="species">sp. nov.</taxonomicNameLabel>
Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short.
</paragraph>
</caption>
<paragraph id="8BBB667FD42A816BEDA0FAB255A7CF38" blockId="11.[212,1172,1322,1698]" lastBlockId="12.[144,1104,167,1183]" lastPageId="12" lastPageNumber="1268" pageId="11" pageNumber="1267">
Antennules moderately long, with five well-defined segments; antennular length
<quantity id="4CFCCB9AD42A816CED8AFA525600CBC6" box="[212,314,1418,1442]" metricMagnitude="-4" metricUnit="m" metricValue="3.3" pageId="11" pageNumber="1267" unit="mm" value="0.33">0.33 mm</quantity>
, representing close to 30% of total body length, and about 61% as long as cephalothorax. Length ratio of antennular segments, from the proximal to distal being: 8: 28: 12: 29: 23 (= 100) (
<figureCitation id="133F7AFAD42A816CEF10FA1255FBCB85" box="[590,705,1482,1506]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="11" pageNumber="1267">Figure 4C</figureCitation>
). Segments armed with 0-I; 1-V; 2-I; 1-V; 5-II+aes setae (in Arabic numbers), spines (in Roman numbers), and aesthetascs (aes). Distal antennular segment geniculate, with three subequal, distally dichotomously branched setae aligned near outer distal end. As usual in male
<taxonomicName id="4C041DFCD42A816CEEB0F9F253B7C825" authorityName="Sars" authorityYear="1921" box="[1006,1165,1578,1602]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="11" pageNumber="1267" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42A816CEEB0F9F253B7C825" box="[1006,1165,1578,1602]" italics="true" pageId="11" pageNumber="1267">Monstrillopsis</emphasis>
</taxonomicName>
, terminal antennular segment modified, with inner margin rounded, moderately expanded and distal half forming sabre-like structure with elongated distal element. In terms of the setal nomenclature of
<bibRefCitation id="EF951B8ED42A816CEFEDF9525330C8C5" author="Grygier MJ &amp; Ohtsuka S" box="[691,1034,1674,1698]" pageId="11" pageNumber="1267" pagination="703 - 719" refId="ref6338" refString="Grygier MJ, Ohtsuka S. 1995. SEM observation of the nauplius of Monstrilla hamatapex, new species, from Japan and an example of upgraded descriptive standards for monstrilloid copepods. J Crust Biol. 15: 703 - 719." type="journal article" year="1995">Grygier and Ohtsuka (1995)</bibRefCitation>
for female monstrilloid copepod antennules, elements in first (1), second (2d
<subScript id="1780643AD42D816BEE24FF6A54A9CEA3" attach="left" box="[890,915,178,196]" fontSize="8" pageId="12" pageNumber="1268">1,2</subScript>
, 2v
<subScript id="1780643AD42D816BEEE3FF6A54E1CEA3" attach="right" box="[957,987,178,196]" fontSize="8" pageId="12" pageNumber="1268">1–3</subScript>
, IId), and third (3, IIIv, IIId) segments complete. Fourth with elements 4v
<subScript id="1780643AD42D816BEE3CFF0A54BACE83" attach="right" box="[866,896,210,228]" fontSize="8" pageId="12" pageNumber="1268">1–3</subScript>
, 4d
<subScript id="1780643AD42D816BEEF4FF0A54FECE83" attach="left" box="[938,964,210,228]" fontSize="8" pageId="12" pageNumber="1268">1,2</subScript>
. In terms of the setal nomenclature proposed by
<bibRefCitation id="EF951B8ED42D816BEF71FF3055C0CE98" author="Huys R &amp; Llewellyn-Hughes J &amp; Conroy-Dalton S &amp; Olson PD &amp; Spinks JN &amp; Johnston DA" box="[559,762,231,256]" pageId="12" pageNumber="1268" pagination="368 - 378" refId="ref6444" refString="Huys R, Llewellyn-Hughes J, Conroy-Dalton S, Olson PD, Spinks JN, Johnston DA. 2007. Extraordinary host switching in siphonostomatoid copepods and the demise of the Monstrilloida: integrating molecular data, ontogeny and antennulary morphology. Mol Phylog Evol. 43: 368 - 378." type="journal article" year="2007">Huys et al. (2007)</bibRefCitation>
for the armature of the distal segment of male monstrilloids, elements 1–5 present on anterior margin, dichotomously branched elements A–C on posterior margin (
<figureCitation id="133F7AFAD42D816BEFD1FEFF543ECF58" box="[655,772,295,319]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="12" pageNumber="1268">Figure 4C</figureCitation>
). Distal segment with swollen inner margin and with elongate distal element.
</paragraph>
<paragraph id="8BBB667FD42D816BEDE4FEBF57D7CC18" blockId="12.[144,1104,167,1183]" pageId="12" pageNumber="1268">
First pedigerous thoracic somite incorporated into cephalothorax. This and the succeeding three pedigers each bearing well-developed swimming legs, all with three-segmented endopods and exopods and with same armament pattern, except for leg 1 exopod which has one fewer seta on distal segment (
<figureCitation id="133F7AFAD42D816BEE3EFE1F54C4CFB8" box="[864,1022,455,479]" captionStart="Figure 5" captionStartId="11.[219,286,1069,1091]" captionTargetBox="[352,1032,179,1036]" captionTargetId="figure-227@11.[352,1032,178,1036]" captionTargetPageId="11" captionText="Figure 5. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short." figureDoi="http://doi.org/10.5281/zenodo.5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="12" pageNumber="1268">Figure 5A–C</figureCitation>
). Coxa of each pair unarmed, joined by subrectangular intercoxal sclerite. Sclerites with anterior surface covered by fields of minute spinules (
<figureCitation id="133F7AFAD42D816BEE57FDDF54BFCC78" box="[777,901,519,543]" captionStart="Figure 5" captionStartId="11.[219,286,1069,1091]" captionTargetBox="[352,1032,179,1036]" captionTargetId="figure-227@11.[352,1032,178,1036]" captionTargetPageId="11" captionText="Figure 5. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short." figureDoi="http://doi.org/10.5281/zenodo.5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="12" pageNumber="1268">Figure 5A</figureCitation>
). Basis separated from coxa by diagonal articulation in legs 1–4. Basipodal seta of third swimming leg 3.5 times longer than in other legs. Armature of swimming legs is shown in
<tableCitation id="C68653C4D42D816BEDCEFDBF57D0CC18" box="[144,234,615,639]" captionStart="Table 2" captionStartId="12.[235,293,1529,1551]" captionText="Table 2. Armature of swimming legs in Monstrillopsis chathamensis sp. nov." pageId="12" pageNumber="1268">Table 2</tableCitation>
:
</paragraph>
<paragraph id="8BBB667FD42D816BEDE4FD5F5594CD18" blockId="12.[144,1104,167,1183]" pageId="12" pageNumber="1268">
Fifth leg absent, fifth pedigerous somite globose. Succeeding somite (genital somite) short, lateral margins rounded; genital somite with genital complex, represented by ventrally protruding genital apparatus. Apparatus with two divergent lappets arising from middle of somite (
<figureCitation id="133F7AFAD42D816BEF38FD3F55DFCC98" box="[614,741,743,767]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="12" pageNumber="1268">Figure 4D</figureCitation>
). In lateral view, shaft curved downwards, distal half of lappets bent posteriorly, reaching proximal margin of anal somite (
<figureCitation id="133F7AFAD42D816BEDB4FCFF565ACD58" box="[234,352,807,831]" captionStart="Figure 5" captionStartId="11.[219,286,1069,1091]" captionTargetBox="[352,1032,179,1036]" captionTargetId="figure-227@11.[352,1032,178,1036]" captionTargetPageId="11" captionText="Figure 5. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short." figureDoi="http://doi.org/10.5281/zenodo.5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="12" pageNumber="1268">Figure 5E</figureCitation>
). Base of arms with small rounded processes, one on each branch (arrowed in
<figureCitation id="133F7AFAD42D816BEC77FC9F5692CD38" box="[297,424,839,863]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="12" pageNumber="1268">Figure 4D</figureCitation>
); most specimens with spermatophores partially ejected, protruding between genital lappets (
<figureCitation id="133F7AFAD42D816BEF79FCBF559BCD18" box="[551,673,871,895]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="12" pageNumber="1268">Figure 4D</figureCitation>
).
</paragraph>
<paragraph id="8BBB667FD42D816BEDE4FC5F55D6CA58" blockId="12.[144,1104,167,1183]" pageId="12" pageNumber="1268">
As usual in male
<taxonomicName id="4C041DFCD42D816BEC2BFC5F552ACDF8" authorityName="Sars" authorityYear="1921" box="[373,528,903,927]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="12" pageNumber="1268" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42D816BEC2BFC5F552ACDF8" box="[373,528,903,927]" italics="true" pageId="12" pageNumber="1268">Monstrillopsis</emphasis>
</taxonomicName>
, urosome consisting of five somites: fifth pedigerous somite, genital somite (with genital complex/apparatus) and three free somites. In dorsal view anal somite longest, partially fused with preceding somite, suture visible in ventral view, but only partially in dorsal position; anal somite with roughly corrugated dorsal posterior margin (
<figureCitation id="133F7AFAD42D816BECA2FBDF5543CA78" box="[508,633,1031,1055]" captionStart="Figure 5" captionStartId="11.[219,286,1069,1091]" captionTargetBox="[352,1032,179,1036]" captionTargetId="figure-227@11.[352,1032,178,1036]" captionTargetPageId="11" captionText="Figure 5. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short." figureDoi="http://doi.org/10.5281/zenodo.5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="12" pageNumber="1268">Figure 5D</figureCitation>
). Ratio of lengths of genital somite and three succeeding free somites: 36: 19: 16: 29 (= 100).
</paragraph>
<paragraph id="8BBB667FD42D816BEDE4FB9F5649CAF8" blockId="12.[144,1104,167,1183]" pageId="12" pageNumber="1268">
Caudal rami subrectangular, about 1.4 times longer than wide. Caudal rami each armed with four biserially setulated setae (
<figureCitation id="133F7AFAD42D816BEF35FBBF55D7CA18" box="[619,749,1127,1151]" captionStart="Figure 4" captionStartId="10.[144,211,1060,1082]" captionTargetBox="[284,964,174,1027]" captionTargetId="figure-179@10.[284,964,174,1028]" captionTargetPageId="10" captionText="Figure 4. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Habitus, dorsal view; (B) same, lateral view; (C) right antennule, dorsal view; (D) urosome including fifth pedigerous somite, genital somite and free urosomites, ventral view." figureDoi="http://doi.org/10.5281/zenodo.5216391" httpUri="https://zenodo.org/record/5216391/files/figure.png" pageId="12" pageNumber="1268">Figures 4D</figureCitation>
,
<figureCitation id="133F7AFAD42D816BEFA6FBBF5425CA18" box="[760,799,1127,1151]" captionStart="Figure 5" captionStartId="11.[219,286,1069,1091]" captionTargetBox="[352,1032,179,1036]" captionTargetId="figure-227@11.[352,1032,178,1036]" captionTargetPageId="11" captionText="Figure 5. Monstrillopsis chathamensis sp. nov. Adult holotype male from Isla del Coco, Costa Rica. (A) Right third swimming leg showing long basipodal seta and intercoxal sclerite, anterior view; (B) right second swimming leg, anterior; (C) left fourth swimming leg, anterior; (D) three postgenital free somites and caudal rami showing partial suture on dorsal surface of anal somite; (E) genital somite and three postgenital somites, lateral view. Most swimming setae cut short." figureDoi="http://doi.org/10.5281/zenodo.5216395" httpUri="https://zenodo.org/record/5216395/files/figure.png" pageId="12" pageNumber="1268">5D</figureCitation>
). All caudal setae subequal in length and width.
</paragraph>
<paragraph id="8BBB667FD42D816BEDCEFB17561ACA80" blockId="12.[144,288,1231,1255]" box="[144,288,1231,1255]" pageId="12" pageNumber="1268">
<emphasis id="B970BA6DD42D816BEDCEFB17561ACA80" box="[144,288,1231,1255]" italics="true" pageId="12" pageNumber="1268">Type locality</emphasis>
</paragraph>
<paragraph id="8BBB667FD42D816BEDCEFB2F562FCB48" blockId="12.[144,1103,1270,1327]" pageId="12" pageNumber="1268">
<materialsCitation id="3B6C6C22D42D816BEDCEFB2F5572CB68" box="[144,584,1271,1296]" country="Iceland" location="Chatham Bay" pageId="12" pageNumber="1268" specimenCount="1">
<location id="8EDB30A4D42D816BEDCEFB2F560ECB77" LSID="urn:lsid:plazi:treatment:03ADD769D428816AECB6FA5754D9CD80:8EDB30A4D42D816BEDCEFB2F560ECB77" box="[144,308,1271,1296]" country="Iceland" name="Chatham Bay" pageId="12" pageNumber="1268">Chatham Bay</location>
, northern coast of
<collectingCountry id="F31326EFD42D816BEF41FB2F5572CB68" box="[543,584,1271,1295]" name="Iceland" pageId="12" pageNumber="1268">Isla</collectingCountry>
</materialsCitation>
<materialsCitation id="3B6C6C22D42D816BEF0DFB2F5628CB48" country="Costa Rica" latitude="5.550439" location="Costa Rica" longLatPrecision="1" longitude="-87.03849" pageId="12" pageNumber="1268" specimenCount="1">
del Coco (
<geoCoordinate id="EE3000B8D42D816BEF8FFB2F5442CB68" box="[721,888,1270,1295]" degrees="5" direction="north" minutes="33" orientation="latitude" pageId="12" pageNumber="1268" precision="1" seconds="01.58" value="5.550439">5°33′01.58′′ N</geoCoordinate>
,
<geoCoordinate id="EE3000B8D42D816BEED7FB2F5379CB68" box="[905,1091,1270,1295]" degrees="87" direction="west" minutes="02" orientation="longitude" pageId="12" pageNumber="1268" precision="1" seconds="18.57" value="-87.03849">87°02′18.57′′ W</geoCoordinate>
),
<collectingCountry id="F31326EFD42D816BEDCEFACF5628CB48" box="[144,274,1303,1327]" name="Costa Rica" pageId="12" pageNumber="1268">Costa Rica</collectingCountry>
</materialsCitation>
.
</paragraph>
<paragraph id="8BBB667FD42D816BEDCEFAB85633CB1F" blockId="12.[144,265,1376,1400]" box="[144,265,1376,1400]" pageId="12" pageNumber="1268">
<emphasis id="B970BA6DD42D816BEDCEFAB85633CB1F" box="[144,265,1376,1400]" italics="true" pageId="12" pageNumber="1268">Etymology</emphasis>
</paragraph>
<paragraph id="8BBB667FD42D816AEDCEFA5F560DCED8" blockId="12.[144,937,1415,1440]" lastBlockId="13.[212,311,167,191]" lastPageId="13" lastPageNumber="1269" pageId="12" pageNumber="1268">
<materialsCitation id="3B6C6C22D42D816AEDCEFA5F560DCED8" country="Costa Rica" lastPageId="13" lastPageNumber="1269" location="Coco" municipality="Remarks" pageId="12" pageNumber="1268" specimenCount="1">
The species name refers to the
<typeStatus id="54BFD8DDD42D816BECB6FA505523CBC7" box="[488,537,1416,1440]" pageId="12" pageNumber="1268">type</typeStatus>
locality, Isla del
<location id="8EDB30A4D42D816BEF87FA5F5422CBF8" LSID="urn:lsid:plazi:treatment:03ADD769D428816AECB6FA5754D9CD80:8EDB30A4D42D816BEF87FA5F5422CBF8" box="[729,792,1415,1439]" country="Costa Rica" municipality="Remarks" name="Coco" pageId="12" pageNumber="1268">Coco</location>
,
<collectingCountry id="F31326EFD42D816BEE7AFA5F549FCBF8" box="[804,933,1415,1439]" name="Costa Rica" pageId="12" pageNumber="1268">Costa Rica</collectingCountry>
.
<emphasis id="B970BA6DD42C816AED8AFF7F560DCED8" box="[212,311,167,191]" italics="true" pageId="13" pageNumber="1269">
<collectingMunicipality id="6BDFFC05D42C816AED8AFF7F560DCED8" box="[212,311,167,191]" pageId="13" pageNumber="1269">Remarks</collectingMunicipality>
</emphasis>
</materialsCitation>
</paragraph>
<caption id="DF7B36F7D42D816BEDB5FA2154C9C868" box="[235,1011,1529,1551]" pageId="12" pageNumber="1268" startId="12.[235,293,1529,1551]">
<paragraph id="8BBB667FD42D816BEDB5FA2154C9C868" blockId="12.[235,1011,1529,1551]" box="[235,1011,1529,1551]" pageId="12" pageNumber="1268">
Table 2. Armature of swimming legs in
<taxonomicName id="4C041DFCD42D816BEFDDFA2154A6C868" authority="Suárez-Morales &amp; Morales-Ramírez, 2009" authorityName="Suárez-Morales &amp; Morales-Ramírez" authorityYear="2009" box="[643,924,1529,1551]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="12" pageNumber="1268" phylum="Arthropoda" rank="species" species="chathamensis" status="sp. nov.">
<emphasis id="B970BA6DD42D816BEFDDFA2154A6C868" box="[643,924,1529,1551]" italics="true" pageId="12" pageNumber="1268">Monstrillopsis chathamensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2430716D42D816BEEFCFA2254C9C868" box="[930,1011,1530,1551]" pageId="12" pageNumber="1268" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</caption>
<paragraph id="8BBB667FD42D816BECE8F9F454CBC8F5" pageId="12" pageNumber="1268">
<table id="F90494DFD42D7E98EDB5F9F454CBC8F5" box="[235,1009,1580,1682]" colsContinueFrom="6.[245,998,1580,1683]" gridcols="4" gridrows="3" pageId="12" pageNumber="1268">
<tr id="3534643DD42D7E98EDB5F9F454CBC825" box="[235,1009,1580,1602]" gridrow="0" pageId="12" pageNumber="1268" rowspan-0="1">
<th id="76E50D41D42D7E98ECE8F9F456D1C825" box="[438,491,1580,1602]" gridcol="1" gridrow="0" pageId="12" pageNumber="1268">Basis</th>
<th id="76E50D41D42D7E98EF00F9F455D2C825" box="[606,744,1580,1602]" gridcol="2" gridrow="0" pageId="12" pageNumber="1268">Endopodite</th>
<th id="76E50D41D42D7E98EE05F9F454CBC825" box="[859,1009,1580,1602]" gridcol="3" gridrow="0" pageId="12" pageNumber="1268">Exopodite</th>
</tr>
<tr id="3534643DD42D7E98EDB5F98654CBC813" box="[235,1009,1630,1652]" gridrow="1" pageId="12" pageNumber="1268">
<th id="76E50D41D42D7E98EDB5F986567BC813" box="[235,321,1630,1652]" gridcol="0" gridrow="1" pageId="12" pageNumber="1268">Leg 1</th>
<td id="76E50D41D42D7E98ECE8F98656D1C813" box="[438,491,1630,1652]" gridcol="1" gridrow="1" pageId="12" pageNumber="1268">1-0</td>
<td id="76E50D41D42D7E98EF00F98655D2C813" box="[606,744,1630,1652]" gridcol="2" gridrow="1" pageId="12" pageNumber="1268">0-1; 0-1; 1,2,2</td>
<td id="76E50D41D42D7E98EE05F98654CBC813" box="[859,1009,1630,1652]" gridcol="3" gridrow="1" pageId="12" pageNumber="1268">I-1; 0-1; I,1,3</td>
</tr>
<tr id="3534643DD42D7E98EDB5F9A454CBC8F5" box="[235,1009,1660,1682]" gridrow="2" pageId="12" pageNumber="1268">
<th id="76E50D41D42D7E98EDB5F9A4567BC8F5" box="[235,321,1660,1682]" gridcol="0" gridrow="2" pageId="12" pageNumber="1268">Legs 2-4</th>
<td id="76E50D41D42D7E98ECE8F9A456D1C8F5" box="[438,491,1660,1682]" gridcol="1" gridrow="2" pageId="12" pageNumber="1268">1-0</td>
<td id="76E50D41D42D7E98EF00F9A455D2C8F5" box="[606,744,1660,1682]" gridcol="2" gridrow="2" pageId="12" pageNumber="1268">0-1; 0-1; 1,2,2</td>
<td id="76E50D41D42D7E98EE05F9A454CBC8F5" box="[859,1009,1660,1682]" gridcol="3" gridrow="2" pageId="12" pageNumber="1268">I-1; 0-1; I,1,2,2</td>
</tr>
</table>
</paragraph>
<paragraph id="8BBB667FD42C816AED8AFF1754D9CD80" blockId="13.[212,1172,207,1000]" pageId="13" pageNumber="1269">
The male specimens from
<collectingCountry id="F31326EFD42C816AEF5DFF175516CE80" box="[515,556,207,231]" name="Iceland" pageId="13" pageNumber="1269">Isla</collectingCountry>
del Coco are assigned to the genus
<taxonomicName id="4C041DFCD42C816AEE91FF175354CE80" authorityName="Sars" authorityYear="1921" box="[975,1134,207,231]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42C816AEE91FF175354CE80" box="[975,1134,207,231]" italics="true" pageId="13" pageNumber="1269">Monstrillopsis</emphasis>
</taxonomicName>
on account of their having the main characters of males of this genus, including three free postgenital somites, four setae on each caudal ramus, and a modified distal antennular segment (see
<bibRefCitation id="EF951B8ED42C816AEF5EFEF7547FCF20" author="Suarez-Morales E &amp; Bello-Smith A &amp; Palma S" box="[512,837,303,327]" pageId="13" pageNumber="1269" pagination="95 - 107" refId="ref7383" refString="Suarez-Morales E, Bello-Smith A, Palma S. 2006. A revision of the genus Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) with description of a new species from Chile. Zool Anz. 245: 95 - 107." type="journal article" year="2006">Suárez-Morales et al. 2006</bibRefCitation>
, 2008). In their revision of
<taxonomicName id="4C041DFCD42C816AED8AFE9755FACF00" authority=", Suarez-Morales et al. (2006)" authorityName="Suarez-Morales" authorityYear="2006" box="[212,704,335,359]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42C816AED8AFE975648CF00" box="[212,370,335,359]" italics="true" pageId="13" pageNumber="1269">Monstrillopsis</emphasis>
,
<bibRefCitation id="EF951B8ED42C816AECDFFE9755FACF00" author="Suarez-Morales E &amp; Bello-Smith A &amp; Palma S" box="[385,704,335,359]" pageId="13" pageNumber="1269" pagination="95 - 107" refId="ref7383" refString="Suarez-Morales E, Bello-Smith A, Palma S. 2006. A revision of the genus Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) with description of a new species from Chile. Zool Anz. 245: 95 - 107." type="journal article" year="2006">Suárez-Morales et al. (2006)</bibRefCitation>
</taxonomicName>
did not include a definition of the males. One of the main generic characters of the females of
<taxonomicName id="4C041DFCD42C816AEE75FEB754F3CFE0" box="[811,969,367,391]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42C816AEE75FEB754F3CFE0" box="[811,969,367,391]" italics="true" pageId="13" pageNumber="1269">Monstrillopsis</emphasis>
</taxonomicName>
is the presence of four caudal setae; however, this character is not equally valuable in the males, because males of some species of
<taxonomicName id="4C041DFCD42C816AEF16FE7755EBCFA0" authorityName="Thompson" authorityYear="1888" box="[584,721,431,455]" class="Hexanauplia" family="Monstrillidae" genus="Cymbasoma" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42C816AEF16FE7755EBCFA0" box="[584,721,431,455]" italics="true" pageId="13" pageNumber="1269">Cymbasoma</emphasis>
</taxonomicName>
have four caudal setae (
<bibRefCitation id="EF951B8ED42C816AEE81FE775634CF80" author="Suarez-Morales E" pageId="13" pageNumber="1269" pagination="25 - 33" refId="ref6922" refString="Suarez-Morales E. 2007. Historical record and supplementary description of Cymbasoma bullatum (A. Scott) (Copepoda: Monstrilloida) from the &quot; Albatross &quot; cruise in the Philippines. Zootaxa 1662: 25 - 33." type="journal article" year="2007">Suárez-Morales 2007</bibRefCitation>
). The urosomal segmentation with three postgenital somites and the antennule morphology with a modified distal segment, provide the genus-defining characters (
<bibRefCitation id="EF951B8ED42C816AED85FDD756C2CC40" author="Huys R &amp; Boxshall GA" box="[219,504,527,551]" pageId="13" pageNumber="1269" refId="ref6421" refString="Huys R, Boxshall GA. 1991. Copepod Evolution. London (UK): The Ray Society. 468 p." type="book" year="1991">Huys and Boxshall 1991</bibRefCitation>
;
<bibRefCitation id="EF951B8ED42C816AEF5BFDD75407CC40" author="Suarez-Morales E &amp; Bello-Smith A &amp; Palma S" box="[517,829,527,551]" pageId="13" pageNumber="1269" pagination="95 - 107" refId="ref7383" refString="Suarez-Morales E, Bello-Smith A, Palma S. 2006. A revision of the genus Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) with description of a new species from Chile. Zool Anz. 245: 95 - 107." type="journal article" year="2006">Suárez-Morales et al. 2006</bibRefCitation>
). Males are known for only a few species of this genus (
<bibRefCitation id="EF951B8ED42C816AEF40FDF75454CC20" author="Suarez-Morales E &amp; Bello-Smith A &amp; Palma S" box="[542,878,559,583]" pageId="13" pageNumber="1269" pagination="95 - 107" refId="ref7383" refString="Suarez-Morales E, Bello-Smith A, Palma S. 2006. A revision of the genus Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) with description of a new species from Chile. Zool Anz. 245: 95 - 107." type="journal article" year="2006">Suárez-Morales et al. 2006</bibRefCitation>
):
<taxonomicName id="4C041DFCD42C816AEED6FDF75314CC20" authorityName="Suarez-Morales &amp; Dias" authorityYear="2001" box="[904,1070,559,583]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="fosshageni">
<emphasis id="B970BA6DD42C816AEED6FDF75314CC20" box="[904,1070,559,583]" italics="true" pageId="13" pageNumber="1269">M. fosshageni</emphasis>
</taxonomicName>
Suárez- Morales and Dias, 2001,
<taxonomicName id="4C041DFCD42C816AECA0FD9755D0CC00" authority="Isaac, 1975" authorityName="Isaac" authorityYear="1975" box="[510,746,591,615]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="sarsi">
<emphasis id="B970BA6DD42C816AECA0FD975566CC00" box="[510,604,591,615]" italics="true" pageId="13" pageNumber="1269">M. sarsi</emphasis>
<bibRefCitation id="EF951B8ED42C816AEF38FD8855D0CC00" author="Isaac MJ" box="[614,746,591,615]" pageId="13" pageNumber="1269" pagination="1 - 10" refId="ref6496" refString="Isaac MJ. 1975. Copepoda, Suborder: Monstrilloida. Fich Ident Zoopl. 144 / 145: 1 - 10." type="journal article" year="1975">Isaac, 1975</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C041DFCD42C816AEFA6FD9753B5CC00" authority="Suarez-Morales, 2004" authorityName="Suarez-Morales" authorityYear="2004" box="[760,1167,591,615]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="dubioides">
<emphasis id="B970BA6DD42C816AEFA6FD9754B0CC00" box="[760,906,591,615]" italics="true" pageId="13" pageNumber="1269">M. dubioides</emphasis>
<bibRefCitation id="EF951B8ED42C816AEECDFD9753B5CC00" author="Suarez-Morales E &amp; Ivanenko VN" box="[915,1167,591,615]" pageId="13" pageNumber="1269" pagination="37 - 46" refId="ref7173" refString="Suarez-Morales E, Ivanenko VN. 2004. Two new species of Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) from the White Sea and Norway, with comments on M. dubia Scott. Arctic. 57: 37 - 46." type="journal article" year="2004">Suárez-Morales, 2004</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C041DFCD42C816AED8AFDB756A4CCE0" box="[212,414,623,647]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis id="B970BA6DD42C816AED8AFDB75648CCE0" box="[212,370,623,647]" italics="true" pageId="13" pageNumber="1269">Monstrillopsis</emphasis>
sp.
</taxonomicName>
of
<bibRefCitation id="EF951B8ED42C816AEC95FDA8543ACCE0" author="Huys R &amp; Boxshall GA" box="[459,768,623,648]" pageId="13" pageNumber="1269" refId="ref6421" refString="Huys R, Boxshall GA. 1991. Copepod Evolution. London (UK): The Ray Society. 468 p." type="book" year="1991">Huys and Boxshall (1991)</bibRefCitation>
, and
<taxonomicName id="4C041DFCD42C816AEE1BFDB75533CCC0" authority="Suarez-Morales, Ramirez and Derisio, 2008" authorityName="Suarez-Morales, Ramirez and Derisio" authorityYear="2008" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="chilensis">
<emphasis id="B970BA6DD42C816AEE1BFDB754F4CCE0" box="[837,974,623,647]" italics="true" pageId="13" pageNumber="1269">M. chilensis</emphasis>
<bibRefCitation id="EF951B8ED42C816AEE87FDB75533CCC0" author="Suarez-Morales E &amp; Ramirez FC &amp; Derisio C" pageId="13" pageNumber="1269" pagination="205 - 214" refId="ref7426" refString="Suarez-Morales E, Ramirez FC, Derisio C. 2008. Monstrilloida (Crustacea: Copepoda) from the Beagle Channel, South America. Contr Zool. 77 (4): 205 - 214." type="journal article" year="2008">Suárez-Morales, Ramírez and Derisio, 2008</bibRefCitation>
</taxonomicName>
. The new species differs from the other known species of
<taxonomicName id="4C041DFCD42C816AED8AFD775648CCA0" box="[212,370,687,711]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="genus">
<emphasis id="B970BA6DD42C816AED8AFD775648CCA0" box="[212,370,687,711]" italics="true" pageId="13" pageNumber="1269">Monstrillopsis</emphasis>
</taxonomicName>
in the structure of the genital complex. In
<taxonomicName id="4C041DFCD42C816AEE01FD775481CCA0" authorityName="Isaac" authorityYear="1975" box="[863,955,687,711]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="sarsi">
<emphasis id="B970BA6DD42C816AEE01FD775481CCA0" box="[863,955,687,711]" italics="true" pageId="13" pageNumber="1269">M. sarsi</emphasis>
</taxonomicName>
the genital lappets are widely divergent with truncate tips, and they are long, reaching the middle of the anal somite, whereas in the new species the lappets are not divergent and are relatively shorter, reaching only to the anterior margin of the anal somite, while their tips are distally attenuated. In
<taxonomicName id="4C041DFCD42C816AEF5DFCF755B3CD20" authorityName="Suarez-Morales, Ramirez and Derisio" authorityYear="2008" box="[515,649,815,839]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="chilensis">
<emphasis id="B970BA6DD42C816AEF5DFCF755B3CD20" box="[515,649,815,839]" italics="true" pageId="13" pageNumber="1269">M. chilensis</emphasis>
</taxonomicName>
the genital lappets resemble those of the new species, but they are relatively longer than in
<taxonomicName id="4C041DFCD42C816AEFB5FC9754B5CD00" authorityName="Suárez-Morales &amp; Morales-Ramírez" authorityYear="2009" box="[747,911,847,871]" class="Hexanauplia" family="Monstrillidae" genus="Cymbasoma" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="guerrerense">
<emphasis id="B970BA6DD42C816AEFB5FC9754B5CD00" box="[747,911,847,871]" italics="true" pageId="13" pageNumber="1269">C. guerrerense</emphasis>
</taxonomicName>
and their margins are roughly corrugate compared with a smooth surface in the new species. In
<taxonomicName id="4C041DFCD42C816AE95EFCB753B7CDE0" authorityName="Suarez-Morales" authorityYear="2004" box="[1024,1165,879,903]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="dubioides">
<emphasis id="B970BA6DD42C816AE95EFCB753B7CDE0" box="[1024,1165,879,903]" italics="true" pageId="13" pageNumber="1269">M. dubioides</emphasis>
</taxonomicName>
,
<taxonomicName id="4C041DFCD42C816AED8AFC57564ACDC0" authorityName="Suarez-Morales &amp; Dias" authorityYear="2001" box="[212,368,911,935]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="fosshageni">
<emphasis id="B970BA6DD42C816AED8AFC57564ACDC0" box="[212,368,911,935]" italics="true" pageId="13" pageNumber="1269">M. fosshageni</emphasis>
</taxonomicName>
and
<taxonomicName id="4C041DFCD42C816AECF4FC575548CDC0" box="[426,626,911,935]" class="Hexanauplia" family="Monstrillidae" genus="Monstrillopsis" kingdom="Animalia" order="Monstrilloida" pageId="13" pageNumber="1269" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis id="B970BA6DD42C816AECF4FC575572CDC0" box="[426,584,911,935]" italics="true" pageId="13" pageNumber="1269">Monstrillopsis</emphasis>
sp.
</taxonomicName>
, the genital lappets have a quite different structure, being fused to form a single shaft with distally bifurcate rounded expansions (
<bibRefCitation id="EF951B8ED42C816AED85FC175676CD80" author="Sars GO" box="[219,332,975,999]" pageId="13" pageNumber="1269" refId="ref6609" refString="Sars GO. 1921. An account of the Crustacea of Norway with short descriptions and figures of all the species. Vol. VIII. Copepoda Monstrilloida &amp; Notodelphyoida. Bergen (Norway): The Bergen Museum. 91 p." type="book" year="1921">Sars 1921</bibRefCitation>
;
<bibRefCitation id="EF951B8ED42C816AEC09FC17558FCD80" author="Suarez-Morales E &amp; Dias C" box="[343,693,975,999]" pageId="13" pageNumber="1269" pagination="65 - 81" refId="ref7004" refString="Suarez-Morales E, Dias C. 2001. Taxonomic report of some monstrilloids (Copepoda: Monstrilloida) from Brazil with description of four new species. Bull Inst Royal Sci Nat Belg Biol. 71 (1): 65 - 81." type="journal article" year="2001">Suárez-Morales and Dias 2001</bibRefCitation>
;
<bibRefCitation id="EF951B8ED42C816AEF9EFC0854E2CD80" author="Huys R &amp; Boxshall GA" box="[704,984,975,1000]" pageId="13" pageNumber="1269" refId="ref6421" refString="Huys R, Boxshall GA. 1991. Copepod Evolution. London (UK): The Ray Society. 468 p." type="book" year="1991">Huys and Boxshall 1991</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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