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<document id="77B75A6052E70DA689820E332CDBE5A8" ID-DOI="10.5281/zenodo.179324" ID-GBIF-Dataset="8d9d8b76-bfd9-46ef-b118-58fcc94c7825" ID-ISSN="1175-5326" ID-Zenodo-Dep="179324" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459966161856" checkinUser="plazi" docAuthor="Meland, Kenneth &amp; Brattegard, Torleiv" docDate="2007" docId="882387ECC7360451C8AB64BD0D95FE18" docLanguage="en" docName="zt01628p058.pdf" docOrigin="Zootaxa 1628" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Pseudomma islandicum Meland &amp; Brattegard, 2007, n.sp." docType="treatment" docVersion="10" lastPageNumber="54" masterDocId="741AFF94C73E045AC83C656F0D67FFD2" masterDocTitle="New Mysida (Crustacea) in the genera Amblyops and Pseudomma from the Iceland Basin" masterLastPageNumber="58" masterPageNumber="43" pageNumber="51" updateTime="1698231086940" updateUser="plazi">
<mods:mods id="0A974F66D67E0FA9EC5A06063AF025F3" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="F052C2B900899B230E64950DBF5B65D1">
<mods:title id="59162B349A4FA7011FD9DD5CA2A04472">New Mysida (Crustacea) in the genera Amblyops and Pseudomma from the Iceland Basin</mods:title>
</mods:titleInfo>
<mods:name id="EB4C787CBCCB00AF189F33240C942828" type="personal">
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<mods:namePart id="8B808130103F81882BDF60FCB1094D2A">Meland, Kenneth</mods:namePart>
</mods:name>
<mods:name id="54471AF47E1CCA07AB05A4B23CAEE7CC" type="personal">
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<mods:namePart id="E5D5160D2FF1ECA5A57E9913C978F21D">Brattegard, Torleiv</mods:namePart>
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<mods:title id="D070886ECC140496A2F1B3A83170B66E">Zootaxa</mods:title>
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<mods:part id="0EB89D9215C31A41A493321747D53963">
<mods:date id="FE36E4B8286417C8A09B9729E01EE22F">2007</mods:date>
<mods:detail id="42A994F2B028AAF57A2820958D2DCAE9" type="volume">
<mods:number id="4CA9C452E98BC2E94C45366C449E2E57">1628</mods:number>
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<mods:classification id="5BB5A9EA72D59E9D95D500AAB4E33F68">journal article</mods:classification>
<mods:identifier id="4B94F4EAB507E5014FD4200351495035" type="DOI">10.5281/zenodo.179324</mods:identifier>
<mods:identifier id="57830610DBA3888BA3F26FCB45C72F53" type="GBIF-Dataset">8d9d8b76-bfd9-46ef-b118-58fcc94c7825</mods:identifier>
<mods:identifier id="4A17D5D056220F6B303B8E403CC06422" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="DA778566E877E542BFC52E3A975DA9CB" type="Zenodo-Dep">179324</mods:identifier>
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<treatment id="882387ECC7360451C8AB64BD0D95FE18" ID-DOI="http://doi.org/10.5281/zenodo.5667045" ID-GBIF-Taxon="119377315" ID-Zenodo-Dep="5667045" LSID="urn:lsid:plazi:treatment:882387ECC7360451C8AB64BD0D95FE18" httpUri="http://treatment.plazi.org/id/882387ECC7360451C8AB64BD0D95FE18" lastPageId="11" lastPageNumber="54" pageId="8" pageNumber="51">
<subSubSection id="48906571C7360452C8AB64BD0F65FE3E" box="[151,514,466,492]" pageId="8" pageNumber="51" type="nomenclature">
<paragraph id="003536FAC7360452C8AB64BD0F65FE3E" blockId="8.[151,514,466,492]" box="[151,514,466,492]" pageId="8" pageNumber="51">
<heading id="5B7D8196C7360452C8AB64BD0F65FE3E" bold="true" box="[151,514,466,492]" fontSize="11" level="1" pageId="8" pageNumber="51" reason="1">
<emphasis id="32FEEAE8C7360452C8AB64BD0F65FE3E" bold="true" box="[151,514,466,492]" pageId="8" pageNumber="51">
<taxonomicName id="C78A4D79C7360452C8AB64BD0CA7FE3E" box="[151,448,466,492]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="8" pageNumber="51" phylum="Arthropoda" rank="species" species="islandicum" status="sp. nov.">Pseudomma islandicum</taxonomicName>
<taxonomicNameLabel id="29CD5793C7360452C9FB64BD0F65FE3E" box="[455,514,466,492]" pageId="8" pageNumber="51" rank="species">n.sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="48906571C7360452C8AB67750805FCF6" pageId="8" pageNumber="51" type="materials_examined">
<paragraph id="003536FAC7360452C8AB67750C12FDE1" blockId="8.[151,1436,538,804]" box="[151,373,538,563]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8AB67750C12FDE1" box="[151,373,538,563]" italics="true" pageId="8" pageNumber="51">Material examined</emphasis>
</paragraph>
<paragraph id="003536FAC7360452C8FA672D0805FCF6" blockId="8.[151,1436,538,804]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA672D0C81FD89" box="[198,486,578,604]" italics="true" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA672D0C14FD8E" bold="true" box="[198,371,578,604]" italics="true" pageId="8" pageNumber="51">
<typeStatus id="DF318858C7360452C8FA672D0C67FD8E" box="[198,256,578,604]" pageId="8" pageNumber="51">Type</typeStatus>
material.
</emphasis>
<typeStatus id="DF318858C7360452C947672D0C81FD89" box="[379,486,578,603]" pageId="8" pageNumber="51" type="holotype">Holotype</typeStatus>
</emphasis>
(adult male,
<quantity id="C7729B1FC7360452CABE672D0FBEFD8E" box="[642,729,578,604]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
), IMNH-2191, stn BIOICE 2860.
<emphasis id="32FEEAE8C7360452CC50672D09A9FD89" box="[1132,1230,578,603]" italics="true" pageId="8" pageNumber="51">Allotype</emphasis>
(adult female,
<quantity id="C7729B1FC7360452CDBC672D0DAEFD56" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
), IMNH-2192, stn BIOICE 2860.
<emphasis id="32FEEAE8C7360452CA5967050FBCFD51" box="[613,731,618,643]" italics="true" pageId="8" pageNumber="51">
<typeStatus id="DF318858C7360452CA5967050FBCFD51" box="[613,731,618,643]" pageId="8" pageNumber="51" type="paratype">Paratypes</typeStatus>
</emphasis>
. Stn BIOICE 2856,
<specimenCount id="168CFD73C7360452CBE867050E84FD56" box="[980,995,618,644]" pageId="8" pageNumber="51" type="adult">1</specimenCount>
adult female (
<quantity id="C7729B1FC7360452CCAF6705098BFD56" box="[1171,1260,618,644]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
), IMNH-2193. Stn BIOICE 2859, 1 immature male (
<quantity id="C7729B1FC7360452CA7367FD0FF0FD7E" box="[591,663,658,684]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" pageId="8" pageNumber="51" unit="mm" value="9.0">9 mm</quantity>
), 1 immature male (thorax),
<specimenCount id="168CFD73C7360452CBDB67FD095FFD7E" box="[999,1080,658,684]" pageId="8" pageNumber="51" type="adult">2 adult</specimenCount>
females (
<quantity id="C7729B1FC7360452CC9767FD0866FD7E" box="[1195,1281,658,684]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
), 1 immature female (
<quantity id="C7729B1FC7360452C8CB67D50C28FD06" box="[247,335,698,724]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="8" pageNumber="51" unit="mm" value="10.0">10 mm</quantity>
),
<specimenCount id="168CFD73C7360452C95867D50CBFFD06" box="[356,472,698,724]" pageId="8" pageNumber="51" type="juvenile">1 juvenile</specimenCount>
(
<quantity id="C7729B1FC7360452C9D667D50F54FD06" box="[490,563,698,724]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="8" pageNumber="51" unit="mm" value="7.0">7 mm</quantity>
), IMNH-2194. Stn BIOICE 2860, 1 immature male, (8), 1 immature male (
<quantity id="C7729B1FC7360452C89C678D0D9FFD2E" box="[160,248,738,764]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
),
<specimenCount id="168CFD73C7360452C932678D0C07FD2E" box="[270,352,738,764]" pageId="8" pageNumber="51" type="adult">1 adult</specimenCount>
female (
<quantity id="C7729B1FC7360452C9F7678D0F44FD2E" box="[459,547,738,764]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
), 2 immature females (
<quantity id="C7729B1FC7360452CB04678D0EE5FD2E" box="[824,898,738,764]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="8" pageNumber="51" unit="mm" value="8.0">8 mm</quantity>
),
<specimenCount id="168CFD73C7360452CBA4678D0E8CFD2E" box="[920,1003,738,764]" pageId="8" pageNumber="51" type="adult">1 adult</specimenCount>
female (thorax), 1 immature female (thorax),
<specimenCount id="168CFD73C7360452C93866650CE0FCF6" box="[260,391,778,804]" pageId="8" pageNumber="51" type="juvenile">3 juveniles</specimenCount>
, IMNH-2195. Stn BIOICE 2863, 1 immature male (
<quantity id="C7729B1FC7360452CBD666650954FCF6" box="[1002,1075,778,804]" metricMagnitude="-3" metricUnit="m" metricValue="9.0" pageId="8" pageNumber="51" unit="mm" value="9.0">9 mm</quantity>
),
<specimenCount id="168CFD73C7360452CC7B666509F0FCF6" box="[1095,1175,778,804]" pageId="8" pageNumber="51" type="adult">1 adult</specimenCount>
female (
<quantity id="C7729B1FC7360452CCC366650831FCF6" box="[1279,1366,778,804]" metricMagnitude="-2" metricUnit="m" metricValue="1.1" pageId="8" pageNumber="51" unit="mm" value="11.0">11 mm</quantity>
).
</paragraph>
</subSubSection>
<subSubSection id="48906571C7360453C8AB66370ECCF821" lastPageId="9" lastPageNumber="52" pageId="8" pageNumber="51" type="description">
<paragraph id="003536FAC7360452C8AB66370C45FCA3" blockId="8.[151,1437,856,2002]" box="[151,290,856,881]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8AB66370C45FCA3" box="[151,290,856,881]" italics="true" pageId="8" pageNumber="51">Description</emphasis>
</paragraph>
<paragraph id="003536FAC7360452C8FA66EF0850FC48" blockId="8.[151,1437,856,2002]" box="[198,1335,896,922]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA66EF0C5DFC4B" box="[198,314,896,921]" italics="true" pageId="8" pageNumber="51">Carapace</emphasis>
(
<figureCitation id="98B12A7FC7360452C97566EF0CE9FC48" box="[329,398,896,922]" captionStart="FIGURE 5" captionStartId="9.[151,255,1747,1771]" captionTargetBox="[159,1429,263,1732]" captionTargetId="figure@9.[158,1429,263,1732]" captionTargetPageId="9" captionText="FIGURE 5. Pseudomma islandicum n. sp. A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla." httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
A) with anterior margin evenly rounded and anteriorly produced lateral corners.
</paragraph>
<paragraph id="003536FAC7360452C8FA66C70CFDFBB0" blockId="8.[151,1437,856,2002]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA66C70C38FC13" box="[198,351,936,961]" italics="true" pageId="8" pageNumber="51">Ocular plate</emphasis>
(
<figureCitation id="98B12A7FC7360452C94E66C70CDDFC10" box="[370,442,936,962]" captionStart="FIGURE 5" captionStartId="9.[151,255,1747,1771]" captionTargetBox="[159,1429,263,1732]" captionTargetId="figure@9.[158,1429,263,1732]" captionTargetPageId="9" captionText="FIGURE 5. Pseudomma islandicum n. sp. A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla." httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
A) extending to mid-portion of first segment of antennular peduncle; plate deeply cleft, anterior median portion of plate slightly produced in males; antero-lateral margins coarsely serrated with 20-25 stout setae.
<emphasis id="32FEEAE8C7360452C95066970F7FFBC3" box="[364,536,1016,1041]" italics="true" pageId="8" pageNumber="51">Antennal scale</emphasis>
(
<figureCitation id="98B12A7FC7360452CA1466970F0AFBC0" box="[552,621,1016,1042]" captionStart="FIGURE 5" captionStartId="9.[151,255,1747,1771]" captionTargetBox="[159,1429,263,1732]" captionTargetId="figure@9.[158,1429,263,1732]" captionTargetPageId="9" captionText="FIGURE 5. Pseudomma islandicum n. sp. A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla." httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
B) 3.5 times longer than broad; distal terminal denticle on outer margin consisting of one spine; apex extends beyond terminal denticle, without suture, outer margin of apex armed with five setae.
</paragraph>
<paragraph id="003536FAC7360452C8FA611F084FFB08" blockId="8.[151,1437,856,2002]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA611F0C0EFB5B" box="[198,361,1136,1161]" italics="true" pageId="8" pageNumber="51">Left mandible</emphasis>
setal row consisting of three hirsute spines and
<emphasis id="32FEEAE8C7360452CB9D611F0928FB5B" box="[929,1103,1136,1161]" italics="true" pageId="8" pageNumber="51">right mandible</emphasis>
setal row consisting of nine or ten entire spines. Distal segment of
<emphasis id="32FEEAE8C7360452CA5E61F70E6CFB63" box="[610,779,1176,1201]" italics="true" pageId="8" pageNumber="51">mandible palp</emphasis>
(
<figureCitation id="98B12A7FC7360452CB2161F70E04FB60" box="[797,867,1176,1202]" captionStart="FIGURE 5" captionStartId="9.[151,255,1747,1771]" captionTargetBox="[159,1429,263,1732]" captionTargetId="figure@9.[158,1429,263,1732]" captionTargetPageId="9" captionText="FIGURE 5. Pseudomma islandicum n. sp. A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla." httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
C) with three enlarged proximal ventral setae in male and five in female, medial margin with row of nine to 11 setae, dorsal margin with eight setae.
</paragraph>
<paragraph id="003536FAC7360452C8FA61870C28FA70" blockId="8.[151,1437,856,2002]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA61870C51FAD3" box="[198,310,1256,1281]" italics="true" pageId="8" pageNumber="51">Maxillule</emphasis>
(
<figureCitation id="98B12A7FC7360452C97661870CF4FAD0" box="[330,403,1256,1282]" captionStart="FIGURE 5" captionStartId="9.[151,255,1747,1771]" captionTargetBox="[159,1429,263,1732]" captionTargetId="figure@9.[158,1429,263,1732]" captionTargetPageId="9" captionText="FIGURE 5. Pseudomma islandicum n. sp. A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla." httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
D), apex of coxal lobe armed with three strong setae bordered by three smaller setae placed distal-posterior, distal-ventral, and distal-anterior; anterior lateral margin armed with two setae in medial region; ventral surface and posterior lateral margin supporting seven to nine setae; ventral surface of maxillule basis supporting three setae, posterior lateral margin set with small setae, apex supporting 14 strong cuspidate setae.
</paragraph>
<paragraph id="003536FAC7360452C8FA60DF099FF9C8" blockId="8.[151,1437,856,2002]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA60DF0C46FA1B" box="[198,289,1456,1481]" italics="true" pageId="8" pageNumber="51">Maxilla</emphasis>
(
<figureCitation id="98B12A7FC7360452C90D60DF0C11FA18" box="[305,374,1456,1482]" captionStart="FIGURE 5" captionStartId="9.[151,255,1747,1771]" captionTargetBox="[159,1429,263,1732]" captionTargetId="figure@9.[158,1429,263,1732]" captionTargetPageId="9" captionText="FIGURE 5. Pseudomma islandicum n. sp. A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla." httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="8" pageNumber="51">Fig. 5</figureCitation>
E) with three setae on proximal inner margin of endopod; exopod supporting 19–20 lateral setae; coxa with seven or eight setae on dorsal surface, coxal surface set with small denticles, lateral margin of coxa armed with two rows of setae, dorsal row consisting of one large and five smaller setae.
</paragraph>
<paragraph id="003536FAC7360452C8FA63470FA6F940" blockId="8.[151,1437,856,2002]" pageId="8" pageNumber="51">
First and second thoracic appendages formed as
<emphasis id="32FEEAE8C7360452CB3363470EF1F993" box="[783,918,1576,1601]" italics="true" pageId="8" pageNumber="51">maxillipeds</emphasis>
; first maxilliped dactylus fringed with five large setulate setae on each lateral margin; second maxilliped with long nail, dactylus fringed with seven to nine large setulate setae on each lateral margin.
</paragraph>
<paragraph id="003536FAC7360452C8FA63CF08EEF930" blockId="8.[151,1437,856,2002]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA63CF0F14F96B" box="[198,627,1696,1721]" italics="true" pageId="8" pageNumber="51">Third to eighth thoracic appendages</emphasis>
take on the form of long and slender pereopods.
<emphasis id="32FEEAE8C7360452CC8463CF08FBF96B" box="[1208,1436,1696,1721]" italics="true" pageId="8" pageNumber="51">Female marsupium</emphasis>
consists of three pairs of oostegites arising from the sixth to eighth pereopods, increasing in size posteriorly.
</paragraph>
<paragraph id="003536FAC7360452C8FA639F0910F8D8" blockId="8.[151,1437,856,2002]" box="[198,1143,1776,1802]" pageId="8" pageNumber="51">
<emphasis id="32FEEAE8C7360452C8FA639F0CCFF8DB" box="[198,424,1776,1801]" italics="true" pageId="8" pageNumber="51">Male genital organ</emphasis>
extending beyond seventh pereopod, bearing one apical seta.
</paragraph>
<paragraph id="003536FAC7360453C8FA62770FC6FF08" blockId="8.[151,1437,856,2002]" lastBlockId="9.[151,1436,152,218]" lastPageId="9" lastPageNumber="52" pageId="8" pageNumber="51">
Sixth abdominal somite two times longer than fifth.
<emphasis id="32FEEAE8C7360452CB1562770E93F8E3" box="[809,1012,1816,1841]" italics="true" pageId="8" pageNumber="51">Pleopods of male</emphasis>
biramous; first pleopod with unsegmented endopod and 8–segmented exopod; second pleopod 8-segmented endopod and exopod; third to fifth exopods 7-segmented; third, fourth, and fifth endopods 6-, 7-, and 5-segmented, respectively. The third pleopods three penultimate segments of endopod and exopod support enlarged setae (
<figureCitation id="98B12A7FC7360452CC5162FF09C8F878" box="[1133,1199,1936,1962]" captionStart="FIGURE 6" captionStartId="10.[151,255,1322,1346]" captionTargetBox="[158,1428,155,1298]" captionTargetId="figure@10.[158,1428,155,1298]" captionTargetPageId="10" captionText="FIGURE 6. Pseudomma islandicum n. sp. A-B, holotype male (11 mm); C – D, paratype female (11 mm). A, male third pleopod. B, male fourth pleopod. C, uropod. D, telson. Numbers indicate modified pleopod setae." httpUri="https://zenodo.org/record/179330/files/figure.png" pageId="8" pageNumber="51">Fig 6</figureCitation>
A); fourth pleopods bear enlarged setae on the three penultimate segments of endopods and four enlarged setae on the four penultimate segments of exopods (
<figureCitation id="98B12A7FC7370453C9D065F70F54FF60" box="[492,563,152,178]" captionStart="FIGURE 6" captionStartId="10.[151,255,1322,1346]" captionTargetBox="[158,1428,155,1298]" captionTargetId="figure@10.[158,1428,155,1298]" captionTargetPageId="10" captionText="FIGURE 6. Pseudomma islandicum n. sp. A-B, holotype male (11 mm); C – D, paratype female (11 mm). A, male third pleopod. B, male fourth pleopod. C, uropod. D, telson. Numbers indicate modified pleopod setae." httpUri="https://zenodo.org/record/179330/files/figure.png" pageId="9" pageNumber="52">Fig. 6</figureCitation>
B).
<emphasis id="32FEEAE8C7370453CA6165F70E41FF63" box="[605,806,152,177]" italics="true" pageId="9" pageNumber="52">Female pleopods</emphasis>
uniramous, taking on the form of unsegmented plates and set with apical and ventral surface setae.
</paragraph>
<caption id="54F56672C7370453C8AB63BC0C37F8E2" httpUri="https://zenodo.org/record/179329/files/figure.png" pageId="9" pageNumber="52" targetBox="[159,1429,263,1732]" targetPageId="9">
<paragraph id="003536FAC7370453C8AB63BC0C37F8E2" blockId="9.[151,1436,1747,1840]" pageId="9" pageNumber="52">
<emphasis id="32FEEAE8C7370453C8AB63BC0C79F939" bold="true" box="[151,286,1747,1771]" pageId="9" pageNumber="52">FIGURE 5.</emphasis>
<taxonomicName id="C78A4D79C7370453C91B63BB0F4EF939" box="[295,553,1748,1771]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="9" pageNumber="52" phylum="Arthropoda" rank="species" species="islandicum" status="sp. nov.">
<emphasis id="32FEEAE8C7370453C91B63BB0F4EF939" box="[295,553,1748,1771]" italics="true" pageId="9" pageNumber="52">Pseudomma islandicum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="29CD5793C7370453CA0863BB0F16F939" box="[564,625,1748,1771]" pageId="9" pageNumber="52" rank="species">n. sp.</taxonomicNameLabel>
A, holotype male (11 mm); B, paratype female (11 mm). C-E, paratype female (11 mm). A, anterior portion of cephalon and cephalic appendages. B, antennal scale. C, mandible palp. D, maxillule. E, maxilla.
</paragraph>
</caption>
<paragraph id="003536FAC7370453C8FA620E0EBDF871" blockId="9.[151,1436,1889,2035]" pageId="9" pageNumber="52">
<emphasis id="32FEEAE8C7370453C8FA620E0C47F8A8" box="[198,288,1889,1914]" italics="true" pageId="9" pageNumber="52">Uropod</emphasis>
endopod (
<figureCitation id="98B12A7FC7370453C99C620E0C80F8A9" box="[416,487,1889,1915]" captionStart="FIGURE 6" captionStartId="10.[151,255,1322,1346]" captionTargetBox="[158,1428,155,1298]" captionTargetId="figure@10.[158,1428,155,1298]" captionTargetPageId="10" captionText="FIGURE 6. Pseudomma islandicum n. sp. A-B, holotype male (11 mm); C – D, paratype female (11 mm). A, male third pleopod. B, male fourth pleopod. C, uropod. D, telson. Numbers indicate modified pleopod setae." httpUri="https://zenodo.org/record/179330/files/figure.png" pageId="9" pageNumber="52">Fig. 6</figureCitation>
C) with one ventrally placed strong spinose seta on inner margin near statocyst, outer margin of endopod armed with 13 large setae, and 13 small setae.
</paragraph>
<paragraph id="003536FAC7370453C8FA62DE0ECCF821" blockId="9.[151,1436,1889,2035]" pageId="9" pageNumber="52">
<emphasis id="32FEEAE8C7370453C8FA62DE0C68F818" box="[198,271,1969,1994]" italics="true" pageId="9" pageNumber="52">Telson</emphasis>
(
<figureCitation id="98B12A7FC7370453C91862DE0C0BF819" box="[292,364,1969,1995]" captionStart="FIGURE 6" captionStartId="10.[151,255,1322,1346]" captionTargetBox="[158,1428,155,1298]" captionTargetId="figure@10.[158,1428,155,1298]" captionTargetPageId="10" captionText="FIGURE 6. Pseudomma islandicum n. sp. A-B, holotype male (11 mm); C – D, paratype female (11 mm). A, male third pleopod. B, male fourth pleopod. C, uropod. D, telson. Numbers indicate modified pleopod setae." httpUri="https://zenodo.org/record/179330/files/figure.png" pageId="9" pageNumber="52">Fig. 6</figureCitation>
D), distal end of lateral margins armed with six to 11 spinose setae, apex armed with six pairs of spinose setae; apex with one pair of median plumose setae.
</paragraph>
</subSubSection>
<caption id="54F56672C7340450C8AB604509CFFAB6" httpUri="https://zenodo.org/record/179330/files/figure.png" pageId="10" pageNumber="53" targetBox="[158,1428,155,1298]" targetPageId="10">
<paragraph id="003536FAC7340450C8AB604509CFFAB6" blockId="10.[151,1435,1322,1380]" pageId="10" pageNumber="53">
<emphasis id="32FEEAE8C7340450C8AB60450C7DFA90" bold="true" box="[151,282,1322,1346]" pageId="10" pageNumber="53">FIGURE 6.</emphasis>
<taxonomicName id="C78A4D79C7340450C91D60450F47FA93" box="[289,544,1322,1345]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="islandicum" status="sp. nov.">
<emphasis id="32FEEAE8C7340450C91D60450F47FA93" box="[289,544,1322,1345]" italics="true" pageId="10" pageNumber="53">Pseudomma islandicum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="29CD5793C7340450CA1B60450F06FA93" box="[551,609,1322,1345]" pageId="10" pageNumber="53" rank="species">n. sp.</taxonomicNameLabel>
A-B, holotype male (11 mm); C–D, paratype female (11 mm). A, male third pleopod. B, male fourth pleopod. C, uropod. D, telson. Numbers indicate modified pleopod setae.
</paragraph>
</caption>
<subSubSection id="48906571C7340450C8AB60F70F98FA08" box="[151,767,1432,1498]" pageId="10" pageNumber="53" type="etymology">
<paragraph id="003536FAC7340450C8AB60F70C73FA63" blockId="10.[151,767,1432,1498]" box="[151,276,1432,1457]" pageId="10" pageNumber="53">
<emphasis id="32FEEAE8C7340450C8AB60F70C73FA63" box="[151,276,1432,1457]" italics="true" pageId="10" pageNumber="53">Etymology</emphasis>
</paragraph>
<paragraph id="003536FAC7340450C8FA60AF0F98FA08" blockId="10.[151,767,1432,1498]" box="[198,767,1472,1498]" pageId="10" pageNumber="53">The species is named for its present distribution.</paragraph>
</subSubSection>
<subSubSection id="48906571C7340450C8AB636A0983F995" box="[151,1252,1541,1607]" pageId="10" pageNumber="53" type="distribution">
<paragraph id="003536FAC7340450C8AB636A0C41F9CC" blockId="10.[151,1252,1541,1607]" box="[151,294,1541,1566]" pageId="10" pageNumber="53">
<emphasis id="32FEEAE8C7340450C8AB636A0C41F9CC" box="[151,294,1541,1566]" italics="true" pageId="10" pageNumber="53">Distribution</emphasis>
</paragraph>
<paragraph id="003536FAC7340450C8FA63420983F995" blockId="10.[151,1252,1541,1607]" box="[198,1252,1581,1607]" pageId="10" pageNumber="53">
<taxonomicName id="C78A4D79C7340450C8FA63420CB9F994" box="[198,478,1581,1606]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="islandicum">
<emphasis id="32FEEAE8C7340450C8FA63420CB9F994" box="[198,478,1581,1606]" italics="true" pageId="10" pageNumber="53">Pseudomma islandicum</emphasis>
</taxonomicName>
is found at more than
<quantity id="C7729B1FC7340450CAD963420E59F995" box="[741,830,1581,1607]" metricMagnitude="3" metricUnit="m" metricValue="2.5" pageId="10" pageNumber="53" unit="m" value="2500.0">2500 m</quantity>
depths in the eastern
<collectingCountry id="789D766AC7340450CC00634209F5F995" box="[1084,1170,1581,1607]" name="Iceland" pageId="10" pageNumber="53">Iceland</collectingCountry>
Basin.
</paragraph>
</subSubSection>
<subSubSection id="48906571C7340451C8AB63170D95FE18" lastPageId="11" lastPageNumber="54" pageId="10" pageNumber="53" type="discussion">
<paragraph id="003536FAC7340450C8AB63170D99F943" blockId="10.[151,1436,1656,2002]" box="[151,254,1656,1681]" pageId="10" pageNumber="53">
<emphasis id="32FEEAE8C7340450C8AB63170D99F943" box="[151,254,1656,1681]" italics="true" pageId="10" pageNumber="53">Remarks</emphasis>
</paragraph>
<paragraph id="003536FAC7340450C8FA63CF0C14F850" blockId="10.[151,1436,1656,2002]" pageId="10" pageNumber="53">
<taxonomicName id="C78A4D79C7340450C8FA63CF0CB8F96B" box="[198,479,1696,1721]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="islandicum">
<emphasis id="32FEEAE8C7340450C8FA63CF0CB8F96B" box="[198,479,1696,1721]" italics="true" pageId="10" pageNumber="53">Pseudomma islandicum</emphasis>
</taxonomicName>
bears close resemblance to
<emphasis id="32FEEAE8C7340450CB1263CF0E13F96B" box="[814,884,1696,1721]" italics="true" pageId="10" pageNumber="53">P. j a s i</emphasis>
<bibRefCitation id="641B4B0BC7340450CBBC63CF09ACF968" author="Meland" box="[896,1227,1696,1722]" pageId="10" pageNumber="58" refString="Meland, K. &amp; Brattegard, T. (1995) Redescription of the North Atlantic Pseudomma species (Crustacea, Mysidacea), with the addition of Pseudomma jasi sp. n. Sarsia, 80, 107 - 144." type="journal article" year="1995">Meland &amp; Brattegard, 1995</bibRefCitation>
, and a close relationship between these two species is suggested. The erection of a new species is justified based on the telson in
<taxonomicName id="C78A4D79C7340450C888639F0C35F8DB" box="[180,338,1776,1801]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="islandicum">
<emphasis id="32FEEAE8C7340450C888639F0C35F8DB" box="[180,338,1776,1801]" italics="true" pageId="10" pageNumber="53">P. islandicum</emphasis>
</taxonomicName>
being armed with spinose setae on the distal third portion of the lateral margins, whereas in
<taxonomicName id="C78A4D79C7340450CDBA639F0DA5F8E3" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="jasi">
<emphasis id="32FEEAE8C7340450CDBA639F0DA5F8E3" italics="true" pageId="10" pageNumber="53">P. jasi</emphasis>
</taxonomicName>
the lateral setae do not extend much further than the apex. Also, when compared to
<emphasis id="32FEEAE8C7340450CC8662770867F8E3" box="[1210,1280,1816,1841]" italics="true" pageId="10" pageNumber="53">P. j a s i</emphasis>
, the serrated antero-lateral margins of the ocular plates are quite conspicuous in
<taxonomicName id="C78A4D79C7340450CB99622F0925F88B" box="[933,1090,1856,1881]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="islandicum">
<emphasis id="32FEEAE8C7340450CB99622F0925F88B" box="[933,1090,1856,1881]" italics="true" pageId="10" pageNumber="53">P. islandicum</emphasis>
</taxonomicName>
, opposed to the minute serration seen in
<emphasis id="32FEEAE8C7340450C91962070C0FF853" box="[293,360,1896,1921]" italics="true" pageId="10" pageNumber="53">P. j a s i</emphasis>
.
</paragraph>
<paragraph id="003536FAC7340451C8FA62FF0F40FF08" blockId="10.[151,1436,1656,2002]" lastBlockId="11.[151,1436,152,458]" lastPageId="11" lastPageNumber="54" pageId="10" pageNumber="53">
It is interesting to note characters of the mandible palp, where as in
<taxonomicName id="C78A4D79C7340450CBDB62FF0909F87B" box="[999,1134,1936,1961]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="10" pageNumber="53" phylum="Arthropoda" rank="species" species="maasakii" status="sp. nov.">
<emphasis id="32FEEAE8C7340450CBDB62FF0909F87B" box="[999,1134,1936,1961]" italics="true" pageId="10" pageNumber="53">P. maasakii</emphasis>
</taxonomicName>
<taxonomicNameLabel id="29CD5793C7340450CC4A62FF09D2F878" box="[1142,1205,1936,1962]" pageId="10" pageNumber="53" rank="species">n. sp.</taxonomicNameLabel>
there are up to five enlarged proximal setae on the distal segment of the palp, which is a character state most often found in
<taxonomicName id="C78A4D79C7350451C8AB65F70C41FF63" box="[151,294,152,177]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="genus">
<emphasis id="32FEEAE8C7350451C8AB65F70C41FF63" box="[151,294,152,177]" italics="true" pageId="11" pageNumber="54">Pseudomma</emphasis>
</taxonomicName>
species from the
<collectingCountry id="789D766AC7350451C9CF65F70F07FF60" box="[499,608,152,178]" name="Antarctica" pageId="11" pageNumber="54">Antarctic</collectingCountry>
such as
<emphasis id="32FEEAE8C7350451CAFF65F70E22FF63" box="[707,837,152,177]" italics="true" pageId="11" pageNumber="54">P. a r m a t u m</emphasis>
<bibRefCitation id="641B4B0BC7350451CB6D65F70E93FF60" author="Hansen" box="[849,1012,152,178]" pageId="11" pageNumber="58" refString="Hansen, H. J. (1913) Report on the Crustacea Schizopoda. Swedish Antarctic Expedition 1901 - 1903, 1 - 57." type="book chapter" year="1913">Hansen, 1913</bibRefCitation>
,
<taxonomicName id="C78A4D79C7350451CBC365F708F0FF60" authority="Holt &amp; Tattersall, 1906" authorityName="Holt &amp; Tattersall" authorityYear="1906" box="[1023,1431,152,178]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="species" species="belgicae">
<emphasis id="32FEEAE8C7350451CBC365F709E7FF63" box="[1023,1152,152,177]" italics="true" pageId="11" pageNumber="54">P. belgicae</emphasis>
Holt &amp; Tattersall, 1906
</taxonomicName>
, and
<taxonomicName id="C78A4D79C7350451C8F465AF0F44FF08" authority="Zimmer, 1914" authorityName="Zimmer" authorityYear="1914" box="[200,547,192,218]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="species" species="antarcticum">
<emphasis id="32FEEAE8C7350451C8F465AF0C15FF0B" box="[200,370,192,217]" italics="true" pageId="11" pageNumber="54">P. antarcticum</emphasis>
<bibRefCitation id="641B4B0BC7350451C94565AF0F44FF08" author="Zimmer" box="[377,547,192,218]" pageId="11" pageNumber="58" refString="Zimmer, C. (1914) Die Schizopoden der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition, XV Zoologie, 379 - 409." type="book chapter" year="1914">Zimmer, 1914</bibRefCitation>
</taxonomicName>
.
</paragraph>
<paragraph id="003536FAC7350451C8FA65870D95FE18" blockId="11.[151,1436,152,458]" pageId="11" pageNumber="54">
Regarding
<taxonomicName id="C78A4D79C7350451C97665870CBEFED3" box="[330,473,232,257]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="genus">
<emphasis id="32FEEAE8C7350451C97665870CBEFED3" box="[330,473,232,257]" italics="true" pageId="11" pageNumber="54">Pseudomma</emphasis>
</taxonomicName>
species from the
<collectingCountry id="789D766AC7350451CA8F65870E47FED0" box="[691,800,232,258]" name="Antarctica" pageId="11" pageNumber="54">Antarctic</collectingCountry>
a clarification with reference to figured
<taxonomicName id="C78A4D79C7350451CD30658708FCFED3" box="[1292,1435,232,257]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="genus">
<emphasis id="32FEEAE8C7350451CD30658708FCFED3" box="[1292,1435,232,257]" italics="true" pageId="11" pageNumber="54">Pseudomma</emphasis>
</taxonomicName>
species in
<bibRefCitation id="641B4B0BC7350451C92E647F0C8DFEF8" author="Petryashov" box="[274,490,272,298]" pageId="11" pageNumber="58" refString="Petryashov, V. V. (2006) Mysids (Crustacea, Mysidacea) of the Antarctic and subantarctic from the collection of the Zoological Institute, Russian Academy of Science. Mysida: Erythropini and Amblyopsini tribes. Zoological Journal (in Russian), 85 (12): 1402 - 1421." type="journal article" year="2006">Petryashov (2006)</bibRefCitation>
is necessary. Note that Petryashov depicts the antennal scales of
<emphasis id="32FEEAE8C7350451CCCC647F0813FEFB" box="[1264,1396,272,297]" italics="true" pageId="11" pageNumber="54">P. a r m a t u m</emphasis>
,
<taxonomicName id="C78A4D79C7350451CDBA647F0D92FE83" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="species" species="calmani">
<emphasis id="32FEEAE8C7350451CDBA647F0D92FE83" italics="true" pageId="11" pageNumber="54">P. calmani</emphasis>
</taxonomicName>
, and
<taxonomicName id="C78A4D79C7350451C90764570CD9FE83" box="[315,446,312,337]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="species" species="belgicae">
<emphasis id="32FEEAE8C7350451C90764570CD9FE83" box="[315,446,312,337]" italics="true" pageId="11" pageNumber="54">P. belgicae</emphasis>
</taxonomicName>
with what resembles apical sutures. As such a suture has never been observed in
<taxonomicName id="C78A4D79C7350451C8AB640F0C41FEAB" box="[151,294,352,377]" class="Malacostraca" family="Mysidae" genus="Pseudomma" kingdom="Animalia" order="Mysida" pageId="11" pageNumber="54" phylum="Arthropoda" rank="genus">
<emphasis id="32FEEAE8C7350451C8AB640F0C41FEAB" box="[151,294,352,377]" italics="true" pageId="11" pageNumber="54">Pseudomma</emphasis>
</taxonomicName>
, it is important to note that the supposed scale sutures, in the three
<collectingCountry id="789D766AC7350451CC0E640F09F8FEA8" box="[1074,1183,352,378]" name="Antarctica" pageId="11" pageNumber="54">Antarctic</collectingCountry>
species housed in the Russian Academy collections, are actually artifacts of folding during slide preperations (Petryashov, pers. comm).
</paragraph>
</subSubSection>
</treatment>
</document>
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