177 lines
22 KiB
XML
177 lines
22 KiB
XML
<document id="7B4B01263F8651721D78510611FE73F8" ID-CLB-Dataset="7102" ID-DOI="10.11646/zootaxa.4939.1.1" ID-GBIF-Dataset="ee8e66ff-2f2c-47e2-978b-be52996d5b0f" ID-ISSN="1175-5326" ID-Zenodo-Dep="4580622" ID-ZooBank="F33F42D0-A139-4CE3-97D7-1314C12CF86B" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1614842897337" checkinUser="plazi" docAuthor="Conlan, Kathleen E., Desiderato, Andrea & Beermann, Jan" docDate="2021" docId="03B487DAFFDED975C9C818C2FC31FA7A" docLanguage="en" docName="zootaxa.4939.1.1.pdf" docOrigin="Zootaxa 4939 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Jassa oclairi Conlan 1990" docType="treatment" docVersion="10" lastPageNumber="108" masterDocId="FF8DFFA2FFB5D918C95F1B11FFF4FFF9" masterDocTitle="Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus" masterLastPageNumber="191" masterPageNumber="1" pageNumber="108" updateTime="1698932378003" updateUser="ExternalLinkService">
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<mods:titleInfo id="2BA46D338188025F6AE4B477E413F332">
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<mods:title id="939461D6E293897A9D9C770341B524D7">Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus</mods:title>
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<mods:namePart id="B85E0005F83C6EA48E25A0FD3C8D4DCA">Conlan, Kathleen E.</mods:namePart>
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<mods:nameIdentifier id="E42281781F2F2196B9E9155EF6426292" type="email">kconlan@nature.ca</mods:nameIdentifier>
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<mods:namePart id="6A65A0F1C76E31B07F29E039B0A1826D">Desiderato, Andrea</mods:namePart>
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<mods:nameIdentifier id="52F99DE9B3FF5AB4F9C7D56FE8CDFC53" type="email">kconlan@nature.ca</mods:nameIdentifier>
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<mods:namePart id="5C3940FA9C06B3E57130AE6898F14399">Beermann, Jan</mods:namePart>
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<mods:nameIdentifier id="FAB6489DFE07C31AF0FC50CDB454ACC0" type="email">kconlan@nature.ca</mods:nameIdentifier>
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<mods:title id="B36164004E53A9A3CB2840508E77630B">Zootaxa</mods:title>
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<mods:date id="183B1F3D77D5B79D77C1F40761BBDE5B">2021</mods:date>
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<mods:number id="14447EA243FC3403B5722668FA99BEB4">2021-03-04</mods:number>
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<treatment id="03B487DAFFDED975C9C818C2FC31FA7A" ID-DOI="http://doi.org/10.5281/zenodo.4580580" ID-GBIF-Taxon="181871893" ID-Zenodo-Dep="4580580" LSID="urn:lsid:plazi:treatment:03B487DAFFDED975C9C818C2FC31FA7A" httpUri="http://treatment.plazi.org/id/03B487DAFFDED975C9C818C2FC31FA7A" lastPageId="109" lastPageNumber="108" pageId="107" pageNumber="108">
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<subSubSection id="C3076547FFDED973C9C818C2FE62FBEB" pageId="107" pageNumber="108" type="nomenclature">
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<paragraph id="8BA236CCFFDED973C9C818C2FE28FC15" blockId="107.[151,476,978,1042]" box="[151,476,978,1005]" pageId="107" pageNumber="108">
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<heading id="D0EA81A0FFDED973C9C818C2FE28FC15" bold="true" box="[151,476,978,1005]" fontSize="11" level="2" pageId="107" pageNumber="108" reason="4">
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<taxonomicName id="4C1D4D4FFFDED973C9C818C2FE28FC15" ID-CoL="3QMZX" authority="Conlan, 1990" authorityName="Conlan" authorityYear="1990" box="[151,476,978,1005]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="107" pageNumber="108" phylum="Arthropoda" rank="species" species="oclairi">
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<emphasis id="B969EADEFFDED973C9C818C2FE28FC15" bold="true" box="[151,476,978,1005]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9C818C2FEDBFC14" bold="true" box="[151,303,978,1005]" italics="true" pageId="107" pageNumber="108">Jassaoclairi</emphasis>
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<bibRefCitation id="EF8C4B3DFFDED973C86818C3FE28FC15" author="Conlan, K. E." box="[311,476,978,1004]" pageId="107" pageNumber="108" pagination="2031 - 2075" refId="ref90850" refString="Conlan, K. E. (1990) Revision of the crustacean amphipod genus Jassa Leach (Corophioidea: Ischyroceridae). Canadian Journal of Zoology, 68, 2031 - 2075. https: // doi. org / 10.1139 / z 90 - 288" type="journal article" year="1990">Conlan, 1990</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9C818E6FE62FBEB" blockId="107.[151,476,978,1042]" box="[151,406,1015,1042]" pageId="107" pageNumber="108">
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(
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<tableCitation id="C69F0377FFDED973C9C018E6FEF7FBE8" box="[159,259,1015,1041]" captionStart="TABLE 12" captionStartId="102.[151,239,332,356]" captionTargetPageId="102" captionText="TABLE 12. Key character states of locally distributed North Pacific species. Trans-hemispheric species (Table 10) may occur there as well. X indicates the presence of the first character state described while — indicates the alternative character state given in italics. S and L indicate length.? indicates that the state is unknown. Character states apply to both sexes and all ages unless indicated otherwise." httpUri="http://table.plazi.org/id/DF626644FFD3D97EC9C81A5DFD89FE29" pageId="107" pageNumber="108" tableUuid="DF626644FFD3D97EC9C81A5DFD89FE29">Table 12</tableCitation>
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,
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<figureCitation id="13262A49FFDED973C85018E6FE7AFBEB" box="[271,398,1015,1042]" captionStart-0="FIGURE 62" captionStart-1="FIGURE 63" captionStart-2="FIGURE 64" captionStartId-0="108.[151,250,1808,1832]" captionStartId-1="109.[151,250,1134,1158]" captionStartId-2="110.[151,250,1832,1856]" captionTargetBox-0="[151,1435,281,1785]" captionTargetBox-1="[162,1426,183,1103]" captionTargetBox-2="[169,1419,187,1801]" captionTargetId-0="figure-81@108.[151,1436,273,1785]" captionTargetId-1="figure-18@109.[151,1436,181,1111]" captionTargetId-2="figure-22@110.[165,1422,181,1809]" captionTargetPageId-0="108" captionTargetPageId-1="109" captionTargetPageId-2="110" captionText-0="FIGURE 62. Jassa oclairi Conlan, 1990. Holotype, adult male, minor form, 7.7 mm, NMCC 1987-1071; allotype, adult female, 7.6 mm, NMCC 1987-1072; paratypes, juvenile male 1, 7.1 mm, NMCC 1987-1073; juvenile male 2, 4.1 mm, NMCC 1987- 1073 (CMN). Square Bay, Amchitka Island, Alaska (51°27.2ʹN, 170°11.5ʹE), 21 September 1969, C. E. O’Clair, coll., station CT 02069, amongst kelp community dominated by Laminaria longipes on exposed rocky shore in the intertidal zone below MLLW, 1976-30 (CMN). Lateral view: whole body; dorsal view: telson; other views medial. Appendages are of the holotype unless noted otherwise. Scale 0.1 mm. Illustration after Conlan (1990)." captionText-1="FIGURE 63. Jassa oclairi Conlan, 1990. Allotype, adult female, 7.6 mm; paratype, juvenile male 1, 7.1 mm; adult male, major form, 11.6 mm. Snipe Bay, Baranof Island, Alaska (56°25ʹN, 134°57ʹW), 8 July 1975, no further collection data (University of Alaska). All views medial. Scale 0.1 mm." captionText-2="FIGURE 64. Jassa oclairi Conlan, 1990. Holotype, adult male, minor form, 7.7 mm, NMCC 1987-1071 (CMN). Mouthparts. Frontal view: upper lip; lateral view: maxilla 1; other views medial. Scale 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.4580785" figureDoi-1="http://doi.org/10.5281/zenodo.4580787" figureDoi-2="http://doi.org/10.5281/zenodo.4580790" httpUri-0="https://zenodo.org/record/4580785/files/figure.png" httpUri-1="https://zenodo.org/record/4580787/files/figure.png" httpUri-2="https://zenodo.org/record/4580790/files/figure.png" pageId="107" pageNumber="108">Figs 62–64</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C3076547FFDED973C9C81F2FFC4FF86C" pageId="107" pageNumber="108" type="diagnosis">
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<paragraph id="8BA236CCFFDED973C9C81F2FFEE4FBA1" blockId="107.[151,1437,1086,2014]" box="[151,272,1086,1112]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9C81F2FFEE4FBA1" bold="true" box="[151,272,1086,1112]" pageId="107" pageNumber="108">Diagnosis.</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981F72FEBAFB84" blockId="107.[151,1437,1086,2014]" box="[199,334,1123,1149]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981F72FEBAFB84" bold="true" box="[199,334,1123,1149]" pageId="107" pageNumber="108">Both sexes:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981F96FC67FB58" blockId="107.[151,1437,1086,2014]" box="[199,915,1159,1185]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981F96FE72FB58" box="[199,390,1159,1185]" italics="true" pageId="107" pageNumber="108">Mandibular palp</emphasis>
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: article 2, dorsal margin witha fringe of setae.
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981FBAFC1AFB3C" blockId="107.[151,1437,1086,2014]" box="[199,1006,1195,1221]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981FBAFEC8FB3C" box="[199,316,1195,1221]" italics="true" pageId="107" pageNumber="108">Maxilla 1:</emphasis>
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without a seta or setal cluster at the base of the palp article 1.
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981FDEFF1AFACB" blockId="107.[151,1437,1086,2014]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981FDEFE92FB10" box="[199,358,1231,1257]" italics="true" pageId="107" pageNumber="108">Gnathopod 1:</emphasis>
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basis, anterolateral margin with only a few short setae distally; carpus with a single or small cluster of long setae at the anterodistal junction of the propodus (setae 40-50% of anterior margin length and slightly lateral).
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981E2AFADBFA83" blockId="107.[151,1437,1086,2014]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981E2AFE92FAAC" box="[199,358,1339,1365]" italics="true" pageId="107" pageNumber="108">Gnathopod 2:</emphasis>
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basis with a row of long plumose setae along the anterolateral margin (setae 75% of article width); carpus and propodus, setae on the anterior margin short and plumose (setal length <basis width).
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981E92FD0AFA64" blockId="107.[151,1437,1086,2014]" box="[199,766,1411,1437]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981E92FE8CFA64" box="[199,376,1411,1437]" italics="true" pageId="107" pageNumber="108">Pereopods 5–7:</emphasis>
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propodus not expanded anteriorly.
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981EB6FB5AFA38" blockId="107.[151,1437,1086,2014]" box="[199,1198,1447,1473]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981EB6FECFFA38" box="[199,315,1447,1473]" italics="true" pageId="107" pageNumber="108">Uropod 1:</emphasis>
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ventral peduncular spinous process underlying about 1/3 of the longest ramus.
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981EDAFB66FA1F" blockId="107.[151,1437,1086,2014]" box="[199,1170,1483,1510]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981EDAFECFFA1C" box="[199,315,1483,1509]" italics="true" pageId="107" pageNumber="108">Uropod 3:</emphasis>
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inner ramus without spines mid-dorsally (with only the single apical spine).
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981EFEFB8EF9F0" blockId="107.[151,1437,1086,2014]" box="[199,1146,1519,1545]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981EFEFEECF9F0" box="[199,280,1519,1545]" italics="true" pageId="107" pageNumber="108">Telson:</emphasis>
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tip without apical setae (only the usual short setae at each dorsolateral cusp).
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981D02FE72F9D4" blockId="107.[151,1437,1086,2014]" box="[199,390,1555,1581]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981D02FE72F9D4" bold="true" box="[199,390,1555,1581]" pageId="107" pageNumber="108">Thumbed male:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981D26FDC1F98F" blockId="107.[151,1437,1086,2014]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981D26FEB0F9A8" box="[199,324,1591,1617]" italics="true" pageId="107" pageNumber="108">Antenna 2:</emphasis>
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large individuals nearly asetose, without plumose setae on the flagellum and peduncular article 5 (which are present in smaller males).
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981D6EFD0BF8D0" blockId="107.[151,1437,1086,2014]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981D6EFE90F960" box="[199,356,1663,1689]" italics="true" pageId="107" pageNumber="108">Gnathopod 2:</emphasis>
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propodus, palmar defining spines not produced on a ledge, present in small thumbed males but absent in large thumbed males. In minor males, the thumb is distally squared, short relative to body length and located on the distal half of the propodus. The dactyl is centrally toothed on the inner margin. In the major form male, the thumb is distally squared, and originates more centrally on the propodus. The dactyl is expanded close to the junction with the propodus but is not centrally toothed.
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981C23FE9FF8B5" blockId="107.[151,1437,1086,2014]" box="[199,363,1842,1868]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981C23FE9FF8B5" bold="true" box="[199,363,1842,1868]" pageId="107" pageNumber="108">Adult female:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981C46FBA2F888" blockId="107.[151,1437,1086,2014]" box="[199,1110,1878,1905]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981C46FEB4F888" box="[199,320,1879,1905]" italics="true" pageId="107" pageNumber="108">Antenna 2:</emphasis>
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with abundant plumose setae on the flagellum and peduncular article 5.
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</paragraph>
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<paragraph id="8BA236CCFFDED973C9981C6AFC4FF86C" blockId="107.[151,1437,1086,2014]" box="[199,955,1915,1941]" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981C6AFE95F86C" box="[199,353,1915,1941]" italics="true" pageId="107" pageNumber="108">Gnathopod 2:</emphasis>
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propodus, palm concave, palmar defining angle acute.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3076547FFDED975C9981C8EFC31FA7A" lastPageId="109" lastPageNumber="110" pageId="107" pageNumber="108" type="discussion">
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<paragraph id="8BA236CCFFDED975C9981C8EFC31FA7A" blockId="107.[151,1437,1086,2014]" lastBlockId="109.[151,1437,1277,1411]" lastPageId="109" lastPageNumber="110" pageId="107" pageNumber="108">
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<emphasis id="B969EADEFFDED973C9981C8EFECFF840" bold="true" box="[199,315,1951,1977]" pageId="107" pageNumber="108">Remarks.</emphasis>
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Only one major form male was available for study. Although larger in body size than the minor form adult males, its thumb was relatively short (
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<figureCitation id="13262A49FFDED973CB241CD2FD3AF827" box="[635,718,1987,2014]" captionStart="FIGURE 63" captionStartId="109.[151,250,1134,1158]" captionTargetBox="[162,1426,183,1103]" captionTargetId="figure-18@109.[151,1436,181,1111]" captionTargetPageId="109" captionText="FIGURE 63. Jassa oclairi Conlan, 1990. Allotype, adult female, 7.6 mm; paratype, juvenile male 1, 7.1 mm; adult male, major form, 11.6 mm. Snipe Bay, Baranof Island, Alaska (56°25ʹN, 134°57ʹW), 8 July 1975, no further collection data (University of Alaska). All views medial. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4580787" httpUri="https://zenodo.org/record/4580787/files/figure.png" pageId="107" pageNumber="108">Fig. 63</figureCitation>
|
||
). However, its second antennae were substantially longer than in the juvenile or female and lacked their plumosity on the peduncle article 5 and flagellum. This is the largest of the Northern Hemisphere species of
|
||
<taxonomicName id="4C1D4D4FFFD9D974CB581BAAFDB0FF2D" authorityName="Leach" authorityYear="1814" box="[519,580,187,212]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="108" pageNumber="109" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFFD9D974CB581BAAFDB0FF2D" box="[519,580,187,212]" italics="true" pageId="108" pageNumber="109">Jassa</emphasis>
|
||
</taxonomicName>
|
||
and also the most plumose, with plumose setae occurring on the antennae 1 and 2, gnathopod 2 and pereopods 5–7. It is only known from
|
||
<collectingRegion id="49D9F82EFFD9D974CA121BCEFC6DFF00" box="[845,921,223,249]" country="United States of America" name="Alaska" pageId="108" pageNumber="109">Alaska</collectingRegion>
|
||
and northern
|
||
<collectingRegion id="49D9F82EFFD9D974CD6A1BCEFB00FF00" box="[1077,1268,223,249]" country="Canada" name="British Columbia" pageId="108" pageNumber="109">British Columbia</collectingRegion>
|
||
(
|
||
<figureCitation id="13262A49FFD9D974CC5B1BCEFAA3FF00" box="[1284,1367,223,249]" captionStart="FIGURE 10" captionStartId="21.[151,250,1905,1929]" captionTargetBox="[237,1351,181,1881]" captionTargetId="figure-18@21.[237,1351,181,1881]" captionTargetPageId="21" captionText="FIGURE 10. Records of Northern Hemisphere species of Jassa that were found in the eastern and/or western North Pacific and seas. Red dot: identification confirmed by specimen examination; green triangle: literature record (Supplementary Table S1) with identification not confirmed but judged likely to be this species; blue x: suspected or known to be on the hull or interior of a boat or ship." figureDoi="http://doi.org/10.5281/zenodo.4580654" httpUri="https://zenodo.org/record/4580654/files/figure.png" pageId="108" pageNumber="109">Fig. 10</figureCitation>
|
||
). This is the only Pacific species known to have the dorsal fringe of setae on article 2 of the mandibular palp. It shares this character state with the European
|
||
<taxonomicName id="4C1D4D4FFFD8D975CB551E33FD9BFAC2" authorityName=": Krapp-Schickel" authorityYear="1974" box="[522,623,1313,1339]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="109" pageNumber="110" phylum="Arthropoda" rank="species" species="falcata">
|
||
<emphasis id="B969EADEFFD8D975CB551E33FD9BFAC2" box="[522,623,1313,1339]" italics="true" pageId="109" pageNumber="110">J. falcata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1D4D4FFFD8D975CBFB1E33FCD2FAC2" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[676,806,1313,1339]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="109" pageNumber="110" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFD8D975CBFB1E33FCD2FAC2" box="[676,806,1313,1339]" italics="true" pageId="109" pageNumber="110">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
. All other species lack this fringe. This is the only Pacific species known to have the dorsal fringe of setae on article 2 of the mandibular palp. It shares this character state with the European
|
||
<taxonomicName id="4C1D4D4FFFD8D975C86F1E7BFE62FA7A" authorityName=": Krapp-Schickel" authorityYear="1974" box="[304,406,1385,1411]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="109" pageNumber="110" phylum="Arthropoda" rank="species" species="falcata">
|
||
<emphasis id="B969EADEFFD8D975C86F1E7BFE62FA7A" box="[304,406,1385,1411]" italics="true" pageId="109" pageNumber="110">J. falcata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1D4D4FFFD8D975C8941E7BFDB9FA7A" authorityName="Gnathopods" baseAuthorityName="Walker" baseAuthorityYear="1893" box="[459,589,1385,1411]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="109" pageNumber="110" phylum="Arthropoda" rank="species" species="herdmani">
|
||
<emphasis id="B969EADEFFD8D975C8941E7BFDB9FA7A" box="[459,589,1385,1411]" italics="true" pageId="109" pageNumber="110">J. herdmani</emphasis>
|
||
</taxonomicName>
|
||
. All other species lack this fringe.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |