373 lines
51 KiB
XML
373 lines
51 KiB
XML
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<mods:title id="0EBBE1F7B489C72031F0B0232EF0B39B">Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus</mods:title>
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<treatment id="03B487DAFF26D98FC9C81ECCFA72FBCC" ID-DOI="http://doi.org/10.5281/zenodo.4580604" ID-GBIF-Taxon="181871916" ID-Zenodo-Dep="4580604" LSID="urn:lsid:plazi:treatment:03B487DAFF26D98FC9C81ECCFA72FBCC" httpUri="http://treatment.plazi.org/id/03B487DAFF26D98FC9C81ECCFA72FBCC" lastPageId="151" lastPageNumber="152" pageId="147" pageNumber="148">
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<subSubSection id="C3076547FF26D98BC9C81ECCFD85FA0F" box="[151,625,1500,1527]" pageId="147" pageNumber="148" type="nomenclature">
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<paragraph id="8BA236CCFF26D98BC9C81ECCFD85FA0F" blockId="147.[151,625,1500,1563]" box="[151,625,1500,1527]" pageId="147" pageNumber="148">
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<heading id="D0EA81A0FF26D98BC9C81ECCFD85FA0F" bold="true" box="[151,625,1500,1527]" fontSize="11" level="2" pageId="147" pageNumber="148" reason="4">
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<taxonomicName id="4C1D4D4FFF26D98BC9C81ECCFD85FA0F" ID-CoL="3QMZP" authority="Vader & Krapp, 2005" authorityName="Vader & Krapp" authorityYear="2005" box="[151,625,1500,1527]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="147" pageNumber="148" phylum="Arthropoda" rank="species" species="kjetilanna">
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<emphasis id="B969EADEFF26D98BC9C81ECCFD85FA0F" bold="true" box="[151,625,1500,1527]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9C81ECCFEAFFA0E" bold="true" box="[151,347,1500,1527]" italics="true" pageId="147" pageNumber="148">Jassakjetilanna</emphasis>
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<bibRefCitation id="EF8C4B3DFF26D98BC83D1ECCFD85FA0F" author="Vader, W. & Krapp, T." box="[354,625,1500,1527]" pageId="147" pageNumber="148" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp, 2005</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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</subSubSection>
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<subSubSection id="C3076547FF26D98BC9C81D11FE62F9E2" box="[151,406,1536,1563]" pageId="147" pageNumber="148" type="description">
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<paragraph id="8BA236CCFF26D98BC9C81D11FE62F9E2" blockId="147.[151,625,1500,1563]" box="[151,406,1536,1563]" pageId="147" pageNumber="148">
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(
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<tableCitation id="C69F0377FF26D98BC9C01D11FEF7F9E2" box="[159,259,1536,1563]" captionStart="TABLE 13" captionStartId="136.[151,239,225,249]" captionTargetPageId="136" captionText="TABLE 13. Key character states of locally distributed Southern Hemisphere 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 juveniles unless indicated otherwise." httpUri="http://table.plazi.org/id/DF626644FF3DD990C9C81BF0FD37FE9C" pageId="147" pageNumber="148" tableUuid="DF626644FF3DD990C9C81BF0FD37FE9C">Table 13</tableCitation>
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,
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<figureCitation id="13262A49FF26D98BC8501D11FE7AF9E2" box="[271,398,1536,1563]" captionStart-0="FIGURE 96" captionStart-1="FIGURE 97" captionStart-2="FIGURE 98" captionStartId-0="148.[151,249,1509,1533]" captionStartId-1="149.[151,249,1944,1968]" captionStartId-2="150.[151,250,1873,1897]" captionTargetBox-0="[189,1398,185,1485]" captionTargetBox-1="[190,1398,524,1912]" captionTargetBox-2="[151,1436,181,1849]" captionTargetId-0="figure-22@148.[189,1398,181,1485]" captionTargetId-1="figure-190@149.[189,1398,524,1920]" captionTargetId-2="figure-22@150.[151,1436,181,1849]" captionTargetPageId-0="148" captionTargetPageId-1="149" captionTargetPageId-2="150" captionText-0="FIGURE 96. Jassa kjetilanna Vader and Krapp, 2005. Adult male, major form, 6.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). Lateral view: whole body and uropod 3; dorsal view: telson; other views medial. Scale 0.1 mm." captionText-1="FIGURE 97. Jassa kjetilanna Vader and Krapp, 2005. Adult female, 5.0 mm; subadult male, 5.0 mm; juvenile male, 3.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). All views medial. Scale 0.1 mm." captionText-2="FIGURE 98. Jassa kjetilanna Vader and Krapp, 2005. Adult male, major form, 6.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). Mouthparts. Frontal view: upper lip; lateral view: maxillae 1 and 2; other views medial. Scale 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.4580864" figureDoi-1="http://doi.org/10.5281/zenodo.4580866" figureDoi-2="http://doi.org/10.5281/zenodo.4580868" httpUri-0="https://zenodo.org/record/4580864/files/figure.png" httpUri-1="https://zenodo.org/record/4580866/files/figure.png" httpUri-2="https://zenodo.org/record/4580868/files/figure.png" pageId="147" pageNumber="148">Figs 96–98</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C3076547FF26D98CC9C81D52FDE5F80C" lastPageId="148" lastPageNumber="149" pageId="147" pageNumber="148" type="diagnosis">
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<paragraph id="8BA236CCFF26D98BC9C81D52FEE6F9A4" blockId="147.[151,1436,1603,2026]" box="[151,274,1603,1629]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9C81D52FEE6F9A4" bold="true" box="[151,274,1603,1629]" pageId="147" pageNumber="148">Diagnosis.</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF26D98BC9981D76FEBAF978" blockId="147.[151,1436,1603,2026]" box="[199,334,1639,1665]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981D76FEBAF978" bold="true" box="[199,334,1639,1665]" pageId="147" pageNumber="148">Both sexes:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF26D98BC9981D9AFC42F95F" blockId="147.[151,1436,1603,2026]" box="[199,950,1675,1702]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981D9AFE72F95C" box="[199,390,1675,1701]" italics="true" pageId="147" pageNumber="148">Mandibular palp</emphasis>
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: article 2, dorsal margin without a fringe of setae.
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</paragraph>
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<paragraph id="8BA236CCFF26D98BC9981DBEFC19F930" blockId="147.[151,1436,1603,2026]" box="[199,1005,1711,1738]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981DBEFEC7F930" box="[199,307,1711,1737]" italics="true" pageId="147" pageNumber="148">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="8BA236CCFF26D98BC9981DC2FAEBF8EB" blockId="147.[151,1436,1603,2026]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981DC2FEAEF914" box="[199,346,1747,1773]" italics="true" pageId="147" pageNumber="148">Gnathopod 1</emphasis>
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: basis, anterolateral margin with a few short setae along its length; carpus with a very short seta at the anterodistal junction of the propodus (seta about 10% of anterior margin length and slightly lateral).
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</paragraph>
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<paragraph id="8BA236CCFF26D98BC9981C0AFAEFF8A3" blockId="147.[151,1436,1603,2026]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981C0AFEA8F8CC" box="[199,348,1819,1845]" italics="true" pageId="147" pageNumber="148">Gnathopod 2</emphasis>
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: basis with a row of short setae along the anterolateral margin (setal lengths <10% of the basis width); carpus and propodus, setae on the anterior margin short and simple (setal length <basis width).
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</paragraph>
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<paragraph id="8BA236CCFF26D98BC9981C72FD09F884" blockId="147.[151,1436,1603,2026]" box="[199,765,1891,1918]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981C72FE9BF887" box="[199,367,1891,1918]" italics="true" pageId="147" pageNumber="148">Pereopods 5–7</emphasis>
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: propodus not expanded anteriorly.
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</paragraph>
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<paragraph id="8BA236CCFF26D98BC9981C96FB59F85B" blockId="147.[151,1436,1603,2026]" box="[199,1197,1927,1954]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981C96FEC6F858" box="[199,306,1927,1953]" italics="true" pageId="147" pageNumber="148">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="8BA236CCFF26D98BC9981CBAFB64F83F" blockId="147.[151,1436,1603,2026]" box="[199,1168,1963,1990]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981CBAFEC6F83C" box="[199,306,1963,1989]" italics="true" pageId="147" pageNumber="148">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="8BA236CCFF26D98BC9981CDEFB8CF813" blockId="147.[151,1436,1603,2026]" box="[199,1144,1999,2026]" pageId="147" pageNumber="148">
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<emphasis id="B969EADEFF26D98BC9981CDEFEFBF810" box="[199,271,1999,2025]" italics="true" pageId="147" pageNumber="148">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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<caption id="DF626644FF21D98CC9C81EF4FB09F9BC" ID-DOI="http://doi.org/10.5281/zenodo.4580864" ID-Zenodo-Dep="4580864" httpUri="https://zenodo.org/record/4580864/files/figure.png" pageId="148" pageNumber="149" startId="148.[151,249,1509,1533]" targetBox="[189,1398,185,1485]" targetPageId="148">
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<paragraph id="8BA236CCFF21D98CC9C81EF4FB09F9BC" blockId="148.[151,1437,1509,1605]" pageId="148" pageNumber="149">
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<emphasis id="B969EADEFF21D98CC9C81EF4FEEBFA04" bold="true" box="[151,287,1509,1533]" pageId="148" pageNumber="149">FIGURE 96.</emphasis>
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<taxonomicName id="4C1D4D4FFF21D98CC87A1EF7FD4CFA04" authority="Vader and Krapp, 2005" authorityName="Vader and Krapp" authorityYear="2005" box="[293,696,1509,1533]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="148" pageNumber="149" phylum="Arthropoda" rank="species" species="kjetilanna">
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<emphasis id="B969EADEFF21D98CC87A1EF7FE33FA04" box="[293,455,1509,1533]" italics="true" pageId="148" pageNumber="149">Jassakjetilanna</emphasis>
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<bibRefCitation id="EF8C4B3DFF21D98CC8921EF4FD4CFA04" author="Vader, W. & Krapp, T." box="[461,696,1509,1533]" pageId="148" pageNumber="149" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vaderand Krapp, 2005</bibRefCitation>
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</taxonomicName>
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. Adult male, majorform, 6.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab
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<taxonomicName id="4C1D4D4FFF21D98CCB871D18FB12F9D8" authority="(Hombron & Jacquinot, 1846)" baseAuthorityName="Hombron & Jacquinot" baseAuthorityYear="1846" box="[728,1254,1545,1569]" class="Malacostraca" family="Lithodidae" genus="Paralomis" kingdom="Animalia" order="Decapoda" pageId="148" pageNumber="149" phylum="Arthropoda" rank="species" species="granulosa">
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<emphasis id="B969EADEFF21D98CCB871D18FC58F9D8" box="[728,940,1545,1569]" italics="true" pageId="148" pageNumber="149">Paralomis granulosa</emphasis>
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(
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<bibRefCitation id="EF8C4B3DFF21D98CCAE61D18FB2BF9D8" author="Hombron, J. B. & Jacquinot, H." box="[953,1247,1545,1569]" pageId="148" pageNumber="149" refId="ref95791" refString="Hombron, J. B. & Jacquinot, H. (1846) Crustaces. In: Voyage au pole sud et dans l'oceanie sur les corvettes l'Astrolabe et la Zelee pendant les annees 1837 - 1838 - 1839 - 1840 sous le commandement de M. Dumont-d'Urville capitaine de vaisseau publie par ordre du commandant de la Zelee. Zoologie. Atlas. Gide, Paris, pl. 8." type="journal volume" year="1846">Hombron & Jacquinot, 1846</bibRefCitation>
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)
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</taxonomicName>
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at 20–30 mdepth (TSZ Cr 19054). Lateral view: whole body and uropod 3; dorsal view: telson; other views medial. Scale 0.1 mm.
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</paragraph>
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</caption>
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<paragraph id="8BA236CCFF21D98CC9981D62FE72F974" blockId="148.[151,1437,1651,2037]" box="[199,390,1651,1677]" pageId="148" pageNumber="149">
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<emphasis id="B969EADEFF21D98CC9981D62FE72F974" bold="true" box="[199,390,1651,1677]" pageId="148" pageNumber="149">Thumbed male:</emphasis>
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</paragraph>
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<paragraph id="8BA236CCFF21D98CC9981D89FBEAF94B" blockId="148.[151,1437,1651,2037]" box="[199,1054,1687,1714]" pageId="148" pageNumber="149">
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<emphasis id="B969EADEFF21D98CC9981D89FECEF948" box="[199,314,1687,1714]" italics="true" pageId="148" pageNumber="149">Antenna 2</emphasis>
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: without plumose setae on the flagellum and peduncular article 5.
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||
</paragraph>
|
||
<paragraph id="8BA236CCFF21D98CC9981DAAFF07F89C" blockId="148.[151,1437,1651,2037]" pageId="148" pageNumber="149">
|
||
<emphasis id="B969EADEFF21D98CC9981DAAFEAEF92C" box="[199,346,1723,1749]" italics="true" pageId="148" pageNumber="149">Gnathopod 2</emphasis>
|
||
: propodus, palmar defining spines produced on a ledge in both small and large thumbed males. In minor males, the thumb is distally acute, short relative to body length and located on the distal half of the propodus. The dactyl is not centrally toothed. In major males, the thumb is also acute, relatively short, and on the proximal half of the propodus. The dactyl is shallowly expanded close to the junction with the propodus but is not centrally toothed.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF21D98CC9981C7EFE9FF870" blockId="148.[151,1437,1651,2037]" box="[199,363,1903,1929]" pageId="148" pageNumber="149">
|
||
<emphasis id="B969EADEFF21D98CC9981C7EFE9FF870" bold="true" box="[199,363,1903,1929]" pageId="148" pageNumber="149">Adult female:</emphasis>
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF21D98CC9981C85FBEAF857" blockId="148.[151,1437,1651,2037]" box="[199,1054,1939,1966]" pageId="148" pageNumber="149">
|
||
<emphasis id="B969EADEFF21D98CC9981C85FECEF854" box="[199,314,1939,1966]" italics="true" pageId="148" pageNumber="149">Antenna 2</emphasis>
|
||
: without plumose setae on the flagellum and peduncular article 5.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF21D98CC9981CA6FDE5F80C" blockId="148.[151,1437,1651,2037]" pageId="148" pageNumber="149">
|
||
<emphasis id="B969EADEFF21D98CC9981CA6FEAFF828" box="[199,347,1975,2001]" italics="true" pageId="148" pageNumber="149">Gnathopod 2</emphasis>
|
||
: propodus, palm sinuous; dactyl, inner margin evenly curved, tip fitting into depression between palmar angle and defining spines.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3076547FF20D98FC9981B87FA72FBCC" lastPageId="151" lastPageNumber="152" pageId="149" pageNumber="150" type="discussion">
|
||
<paragraph id="8BA236CCFF20D98DC9981B87FB5AFF00" blockId="149.[151,1437,150,501]" pageId="149" pageNumber="150">
|
||
<emphasis id="B969EADEFF20D98DC9981B87FECFFF49" bold="true" box="[199,315,150,176]" pageId="149" pageNumber="150">Remarks.</emphasis>
|
||
Known only from the
|
||
<collectingCountry id="F30A765CFF20D98DCB131B87FCFEFF49" box="[588,778,150,176]" name="Falkland Islands" pageId="149" pageNumber="150">Falkland Islands</collectingCountry>
|
||
, this species bears the characteristics of the genus
|
||
<taxonomicName id="4C1D4D4FFF20D98DCC011B86FA68FF49" authorityName="Leach" authorityYear="1814" box="[1374,1436,151,176]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="149" pageNumber="150" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFF20D98DCC011B86FA68FF49" box="[1374,1436,151,176]" italics="true" pageId="149" pageNumber="150">Jassa</emphasis>
|
||
</taxonomicName>
|
||
(antennal setation, strong mandibular palp, gnathopod 2 palm defined by a cluster of spines, terminal male’s thumb produced distally to the spines; pereopod 3 and 4 merus anteriorly produced over the carpus).
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF20D98DC9981A13FAFEFE29" blockId="149.[151,1437,150,501]" pageId="149" pageNumber="150">
|
||
Specimens collected on
|
||
<date id="FFA3100CFF20D98DC88E1A13FD7EFEE5" box="[465,650,258,284]" pageId="149" pageNumber="150" value="2003-10-29">29 October 2003</date>
|
||
by A. and W. Vader from the lithodid crab
|
||
<taxonomicName id="4C1D4D4FFF20D98DCD3D1A13FE5DFEB8" authority="(Hombron & Jacquinot, 1846)" baseAuthorityName="Hombron & Jacquinot" baseAuthorityYear="1846" class="Malacostraca" family="Lithodidae" genus="Paralomis" kingdom="Animalia" order="Decapoda" pageId="149" pageNumber="150" phylum="Arthropoda" rank="species" species="granulosa">
|
||
<emphasis id="B969EADEFF20D98DCD3D1A13FABFFEE5" box="[1122,1355,258,284]" italics="true" pageId="149" pageNumber="150">Paralomis granulosa</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFF20D98DCC061A13FE54FEB8" author="Hombron, J. B. & Jacquinot, H." pageId="149" pageNumber="150" refId="ref95791" refString="Hombron, J. B. & Jacquinot, H. (1846) Crustaces. In: Voyage au pole sud et dans l'oceanie sur les corvettes l'Astrolabe et la Zelee pendant les annees 1837 - 1838 - 1839 - 1840 sous le commandement de M. Dumont-d'Urville capitaine de vaisseau publie par ordre du commandant de la Zelee. Zoologie. Atlas. Gide, Paris, pl. 8." type="journal volume" year="1846">Hombron & Jacquinot, 1846</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
at
|
||
<quantity id="4CE59B29FF20D98DC8951A37FDDFFEB8" box="[458,555,294,321]" metricMagnitude="1" metricUnit="m" metricValue="2.5" metricValueMax="3.0" metricValueMin="2.0" pageId="149" pageNumber="150" unit="m" value="25.0" valueMax="30.0" valueMin="20.0">20–30 m</quantity>
|
||
depth in Choiseul Sound, East Falkland, were borrowed from Tromsø Museum,
|
||
<collectingCountry id="F30A765CFF20D98DC9C81A5AFF04FE9C" box="[151,240,331,357]" name="Norway" pageId="149" pageNumber="150">Norway</collectingCountry>
|
||
(TSV Cr 19054). The collection consisted of 3 major form thumbed males,
|
||
<specimenCount id="9D1BFD45FF20D98DCD6F1A5BFB55FE9D" box="[1072,1185,330,356]" pageId="149" pageNumber="150" type="subadult">3 subadult</specimenCount>
|
||
(or near-subadult nonthumbed males),
|
||
<specimenCount id="9D1BFD45FF20D98DC80A1A7FFE55FE71" box="[341,417,366,393]" pageId="149" pageNumber="150" type="adult">5 adult</specimenCount>
|
||
females (2 ovigerous) and
|
||
<specimenCount id="9D1BFD45FF20D98DCB921A7FFCA2FE71" box="[717,854,366,392]" pageId="149" pageNumber="150" type="juvenile">14 juveniles</specimenCount>
|
||
. Representatives of each group were illustrated (
|
||
<figureCitation id="13262A49FF20D98DCC341A7FFF15FE54" captionStart-0="FIGURE 96" captionStart-1="FIGURE 97" captionStart-2="FIGURE 98" captionStartId-0="148.[151,249,1509,1533]" captionStartId-1="149.[151,249,1944,1968]" captionStartId-2="150.[151,250,1873,1897]" captionTargetBox-0="[189,1398,185,1485]" captionTargetBox-1="[190,1398,524,1912]" captionTargetBox-2="[151,1436,181,1849]" captionTargetId-0="figure-22@148.[189,1398,181,1485]" captionTargetId-1="figure-190@149.[189,1398,524,1920]" captionTargetId-2="figure-22@150.[151,1436,181,1849]" captionTargetPageId-0="148" captionTargetPageId-1="149" captionTargetPageId-2="150" captionText-0="FIGURE 96. Jassa kjetilanna Vader and Krapp, 2005. Adult male, major form, 6.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). Lateral view: whole body and uropod 3; dorsal view: telson; other views medial. Scale 0.1 mm." captionText-1="FIGURE 97. Jassa kjetilanna Vader and Krapp, 2005. Adult female, 5.0 mm; subadult male, 5.0 mm; juvenile male, 3.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). All views medial. Scale 0.1 mm." captionText-2="FIGURE 98. Jassa kjetilanna Vader and Krapp, 2005. Adult male, major form, 6.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). Mouthparts. Frontal view: upper lip; lateral view: maxillae 1 and 2; other views medial. Scale 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.4580864" figureDoi-1="http://doi.org/10.5281/zenodo.4580866" figureDoi-2="http://doi.org/10.5281/zenodo.4580868" httpUri-0="https://zenodo.org/record/4580864/files/figure.png" httpUri-1="https://zenodo.org/record/4580866/files/figure.png" httpUri-2="https://zenodo.org/record/4580868/files/figure.png" pageId="149" pageNumber="150">Figs 96–98</figureCitation>
|
||
). Although
|
||
<bibRefCitation id="EF8C4B3DFF20D98DC83C1A83FD94FE54" author="Vader, W. & Krapp, T." box="[355,608,402,429]" pageId="149" pageNumber="150" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp (2005)</bibRefCitation>
|
||
thoroughly illustrated the
|
||
<typeStatus id="54A6886EFF20D98DCAD61A82FC32FE54" box="[905,966,403,429]" pageId="149" pageNumber="150">types</typeStatus>
|
||
, which were also collected from Choiseul Sound, there was some minor disagreement between the
|
||
<typeStatus id="54A6886EFF20D98DCA571AA6FCB6FE28" box="[776,834,439,465]" pageId="149" pageNumber="150">types</typeStatus>
|
||
and the specimens examined, as follows.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF20D98DC9981ACBFA6EFE0C" blockId="149.[151,1437,150,501]" box="[199,1434,474,501]" pageId="149" pageNumber="150">
|
||
<emphasis id="B969EADEFF20D98DC9981ACBFEC7FE0D" box="[199,307,474,500]" italics="true" pageId="149" pageNumber="150">Maxilla 2</emphasis>
|
||
: The inner ramus is an extension of the base, not segmented as illustrated by
|
||
<bibRefCitation id="EF8C4B3DFF20D98DCDC91ACBFA62FE0C" author="Vader, W. & Krapp, T." box="[1174,1430,474,501]" pageId="149" pageNumber="150" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp (2005)</bibRefCitation>
|
||
.
|
||
</paragraph>
|
||
<caption id="DF626644FF20D98DC9C81C89FBF3F80E" ID-DOI="http://doi.org/10.5281/zenodo.4580866" ID-Zenodo-Dep="4580866" httpUri="https://zenodo.org/record/4580866/files/figure.png" pageId="149" pageNumber="150" startId="149.[151,249,1944,1968]" targetBox="[190,1398,524,1912]" targetPageId="149">
|
||
<paragraph id="8BA236CCFF20D98DC9C81C89FBF3F80E" blockId="149.[151,1437,1944,2040]" pageId="149" pageNumber="150">
|
||
<emphasis id="B969EADEFF20D98DC9C81C89FED4F849" bold="true" box="[151,288,1944,1968]" pageId="149" pageNumber="150">FIGURE 97.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFF20D98DC8781C88FD35F849" authority="Vader and Krapp, 2005" authorityName="Vader and Krapp" authorityYear="2005" box="[295,705,1944,1968]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="149" pageNumber="150" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF20D98DC8781C88FE3FF849" box="[295,459,1944,1968]" italics="true" pageId="149" pageNumber="150">Jassa kjetilanna</emphasis>
|
||
<bibRefCitation id="EF8C4B3DFF20D98DC88D1C89FD35F849" author="Vader, W. & Krapp, T." box="[466,705,1944,1968]" pageId="149" pageNumber="150" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vaderand Krapp, 2005</bibRefCitation>
|
||
</taxonomicName>
|
||
. Adult female, 5.0 mm; subadult male, 5.0 mm; juvenile male, 3.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab
|
||
<taxonomicName id="4C1D4D4FFF20D98DCD071CADFEAEF801" authority="(Hombron & Jacquinot, 1846)" baseAuthorityName="Hombron & Jacquinot" baseAuthorityYear="1846" class="Malacostraca" family="Lithodidae" genus="Paralomis" kingdom="Animalia" order="Decapoda" pageId="149" pageNumber="150" phylum="Arthropoda" rank="species" species="granulosa">
|
||
<emphasis id="B969EADEFF20D98DCD071CADFAD8F82D" box="[1112,1324,1980,2004]" italics="true" pageId="149" pageNumber="150">Paralomis granulosa</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFF20D98DCC661CADFEA7F801" author="Hombron, J. B. & Jacquinot, H." pageId="149" pageNumber="150" refId="ref95791" refString="Hombron, J. B. & Jacquinot, H. (1846) Crustaces. In: Voyage au pole sud et dans l'oceanie sur les corvettes l'Astrolabe et la Zelee pendant les annees 1837 - 1838 - 1839 - 1840 sous le commandement de M. Dumont-d'Urville capitaine de vaisseau publie par ordre du commandant de la Zelee. Zoologie. Atlas. Gide, Paris, pl. 8." type="journal volume" year="1846">Hombron & Jacquinot, 1846</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
at 20–30 mdepth (TSZ Cr 19054). All views medial. Scale 0.1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF626644FF23D98EC9C81C40FAA6F848" ID-DOI="http://doi.org/10.5281/zenodo.4580868" ID-Zenodo-Dep="4580868" httpUri="https://zenodo.org/record/4580868/files/figure.png" pageId="150" pageNumber="151" startId="150.[151,250,1873,1897]" targetBox="[151,1436,181,1849]" targetPageId="150">
|
||
<paragraph id="8BA236CCFF23D98EC9C81C40FAA6F848" blockId="150.[151,1436,1873,1969]" pageId="150" pageNumber="151">
|
||
<emphasis id="B969EADEFF23D98EC9C81C40FED4F890" bold="true" box="[151,288,1873,1897]" pageId="150" pageNumber="151">FIGURE 98.</emphasis>
|
||
<taxonomicName id="4C1D4D4FFF23D98EC8781C43FD4EF890" authority="Vader and Krapp, 2005" authorityName="Vader and Krapp" authorityYear="2005" box="[295,698,1873,1897]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="150" pageNumber="151" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF23D98EC8781C43FE3DF890" box="[295,457,1873,1897]" italics="true" pageId="150" pageNumber="151">Jassakjetilanna</emphasis>
|
||
<bibRefCitation id="EF8C4B3DFF23D98EC8901C40FD4EF890" author="Vader, W. & Krapp, T." box="[463,698,1873,1897]" pageId="150" pageNumber="151" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vaderand Krapp, 2005</bibRefCitation>
|
||
</taxonomicName>
|
||
. Adult male, majorform, 6.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab
|
||
<taxonomicName id="4C1D4D4FFF23D98ECB871C64FB12F874" authority="(Hombron & Jacquinot, 1846)" baseAuthorityName="Hombron & Jacquinot" baseAuthorityYear="1846" box="[728,1254,1909,1933]" class="Malacostraca" family="Lithodidae" genus="Paralomis" kingdom="Animalia" order="Decapoda" pageId="150" pageNumber="151" phylum="Arthropoda" rank="species" species="granulosa">
|
||
<emphasis id="B969EADEFF23D98ECB871C64FC58F874" box="[728,940,1909,1933]" italics="true" pageId="150" pageNumber="151">Paralomis granulosa</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8C4B3DFF23D98ECAE61C64FB2BF874" author="Hombron, J. B. & Jacquinot, H." box="[953,1247,1909,1933]" pageId="150" pageNumber="151" refId="ref95791" refString="Hombron, J. B. & Jacquinot, H. (1846) Crustaces. In: Voyage au pole sud et dans l'oceanie sur les corvettes l'Astrolabe et la Zelee pendant les annees 1837 - 1838 - 1839 - 1840 sous le commandement de M. Dumont-d'Urville capitaine de vaisseau publie par ordre du commandant de la Zelee. Zoologie. Atlas. Gide, Paris, pl. 8." type="journal volume" year="1846">Hombron & Jacquinot, 1846</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
at 20–30 mdepth (TSZ Cr 19054). Mouthparts. Frontal view: upper lip; lateral view: maxillae 1 and 2; other views medial. Scale 0.1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BA236CCFF22D98FC9981B86FBFAFF03" blockId="151.[151,1437,151,1077]" pageId="151" pageNumber="152">
|
||
<emphasis id="B969EADEFF22D98FC9981B86FEAFFF48" box="[199,347,151,177]" italics="true" pageId="151" pageNumber="152">Gnathopod 1</emphasis>
|
||
: The cluster of setae at the anterodistal junction of the carpus and propodus, stated as present in
|
||
<bibRefCitation id="EF8C4B3DFF22D98FC9C81BAAFE51FF2C" author="Vader, W. & Krapp, T." box="[151,421,186,213]" pageId="151" pageNumber="152" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp’s (2005)</bibRefCitation>
|
||
description but absent in the specimens they illustrated, are confirmed present in the specimens examined herein (single, slightly lateral seta in the specimens examined).
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF22D98FC9981A12FE4AFE70" blockId="151.[151,1437,151,1077]" pageId="151" pageNumber="152">
|
||
<emphasis id="B969EADEFF22D98FC9981A12FEAEFEE4" box="[199,346,259,285]" italics="true" pageId="151" pageNumber="152">Gnathopod 2</emphasis>
|
||
: Subadult males have a small ‘pre-thumb’ (
|
||
<figureCitation id="13262A49FF22D98FCA1D1A12FC61FEE4" box="[834,917,259,285]" captionStart="FIGURE 97" captionStartId="149.[151,249,1944,1968]" captionTargetBox="[190,1398,524,1912]" captionTargetId="figure-190@149.[189,1398,524,1920]" captionTargetPageId="149" captionText="FIGURE 97. Jassa kjetilanna Vader and Krapp, 2005. Adult female, 5.0 mm; subadult male, 5.0 mm; juvenile male, 3.5 mm. Choiseul Sound, East Falkland, 29 October 2003, A. and W. Vader, coll., from the lithodid crab Paralomis granulosa (Hombron & Jacquinot, 1846) at 20–30 m depth (TSZ Cr 19054). All views medial. Scale 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.4580866" httpUri="https://zenodo.org/record/4580866/files/figure.png" pageId="151" pageNumber="152">Fig. 97</figureCitation>
|
||
), but the juvenile male gnathopod 2 illustrated by
|
||
<bibRefCitation id="EF8C4B3DFF22D98FC9E51A36FE43FEB8" author="Vader, W. & Krapp, T." box="[186,439,294,321]" pageId="151" pageNumber="152" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp (2005)</bibRefCitation>
|
||
has too large a thumb to be subadult. Instead, it is likely a ‘minor form’ adult. The larger thumbed gnathopod 2 illustrated by
|
||
<bibRefCitation id="EF8C4B3DFF22D98FCB741A5AFCD3FE9C" author="Vader, W. & Krapp, T." box="[555,807,330,357]" pageId="151" pageNumber="152" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp (2005)</bibRefCitation>
|
||
is not ‘hyperadult’, but resembles that of a ‘major form’ adult male (
|
||
<bibRefCitation id="EF8C4B3DFF22D98FC8441A7EFE45FE70" author="Conlan, K. E." box="[283,433,367,393]" pageId="151" pageNumber="152" 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>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF22D98FC9981A82FB3AFE54" blockId="151.[151,1437,151,1077]" box="[199,1230,403,429]" pageId="151" pageNumber="152">
|
||
<emphasis id="B969EADEFF22D98FC9981A82FEC6FE54" box="[199,306,403,429]" italics="true" pageId="151" pageNumber="152">Uropod 1</emphasis>
|
||
: The interramal spine that projects underneath the rami is not lateral as illustrated.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF22D98FC9981AA6FC77FE0C" blockId="151.[151,1437,151,1077]" pageId="151" pageNumber="152">
|
||
<emphasis id="B969EADEFF22D98FC9981AA6FEC5FE28" box="[199,305,439,465]" italics="true" pageId="151" pageNumber="152">Uropod 3</emphasis>
|
||
: The apparent lack of the characteristic pair of cusps proximal to the curved embedded spine at the tip of the outer ramus were present in the specimens examined herein.
|
||
</paragraph>
|
||
<paragraph id="8BA236CCFF22D98FC9981AEEFA72FBCC" blockId="151.[151,1437,151,1077]" pageId="151" pageNumber="152">
|
||
No conclusions could be drawn on the variation of thumb size relative to body size as only three thumbed males were available for measurement. In comparison with other Southern Hemisphere species of
|
||
<taxonomicName id="4C1D4D4FFF22D98FCDAE1932FEDBFD98" authority=", Vader & Krapp (2005)" authorityName=", Vader & Krapp" authorityYear="2005" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFF22D98FCDAE1932FADBFDC5" box="[1265,1327,547,572]" italics="true" pageId="151" pageNumber="152">Jassa</emphasis>
|
||
,
|
||
<bibRefCitation id="EF8C4B3DFF22D98FCC621932FEDBFD98" author="Vader, W. & Krapp, T." pageId="151" pageNumber="152" pagination="3075 - 3099" refId="ref106631" refString="Vader, W. & Krapp, T. (2005) Crab-associated amphipods from the Falkland Islands (Crustacea, Peracarida). Journal of Natural History, 39, 3075 - 3099. https: // doi. org / 10.1080 / 00222930500218573" type="journal article" year="2005">Vader & Krapp (2005)</bibRefCitation>
|
||
</taxonomicName>
|
||
considered the relationship of
|
||
<taxonomicName id="4C1D4D4FFF22D98FCBD51956FCE1FD98" authorityName="Vader and Krapp" authorityYear="2005" box="[650,789,583,609]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FCBD51956FCE1FD98" box="[650,789,583,609]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
to
|
||
<taxonomicName id="4C1D4D4FFF22D98FCA661956FC4DFD98" authorityName="Conlan" authorityYear="1990" box="[825,953,583,609]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCA661956FC4DFD98" box="[825,953,583,609]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1D4D4FFF22D98FCAAF1956FB9BFD98" authorityName="Conlan" authorityYear="1990" box="[1008,1135,583,609]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="alonsoae">
|
||
<emphasis id="B969EADEFF22D98FCAAF1956FB9BFD98" box="[1008,1135,583,609]" italics="true" pageId="151" pageNumber="152">J. alonsoae</emphasis>
|
||
</taxonomicName>
|
||
due to their co-occurrence in the
|
||
<collectingCountry id="F30A765CFF22D98FC982197AFE6EFD7C" box="[221,410,619,645]" name="Falkland Islands" pageId="151" pageNumber="152">Falkland Islands</collectingCountry>
|
||
.
|
||
<taxonomicName id="4C1D4D4FFF22D98FC8FB197AFDBAFD7C" authorityName="Conlan" authorityYear="1990" box="[420,590,619,645]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="alonsoae">
|
||
<emphasis id="B969EADEFF22D98FC8FB197AFDBAFD7C" box="[420,590,619,645]" italics="true" pageId="151" pageNumber="152">Jassa alonsoae</emphasis>
|
||
</taxonomicName>
|
||
has many morphological features that are not shared with
|
||
<taxonomicName id="4C1D4D4FFF22D98FCDBF197AFA9EFD7C" authorityName="Vader and Krapp" authorityYear="2005" box="[1248,1386,619,645]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FCDBF197AFA9EFD7C" box="[1248,1386,619,645]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
, but
|
||
<taxonomicName id="4C1D4D4FFF22D98FC9C8199EFEE3FD50" authorityName="Conlan" authorityYear="1990" box="[151,279,655,681]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FC9C8199EFEE3FD50" box="[151,279,655,681]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
is more similar if intraspecific variation is taken into consideration. It requires the use of sex- and ageinvariant characters to differentiate species of
|
||
<taxonomicName id="4C1D4D4FFF22D98FCBF919A2FD10FD35" authorityName=", Vader & Krapp" authorityYear="2005" box="[678,740,691,716]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFF22D98FCBF919A2FD10FD35" box="[678,740,691,716]" italics="true" pageId="151" pageNumber="152">Jassa</emphasis>
|
||
</taxonomicName>
|
||
because their morphology varies so much with age, size and sex. Using only key characters,
|
||
<taxonomicName id="4C1D4D4FFF22D98FC8A119C6FD7DFD08" authorityName="Vader and Krapp" authorityYear="2005" box="[510,649,727,753]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FC8A119C6FD7DFD08" box="[510,649,727,753]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1D4D4FFF22D98FCB9F19C6FCB4FD08" authorityName="Conlan" authorityYear="1990" box="[704,832,727,753]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCB9F19C6FCB4FD08" box="[704,832,727,753]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
are separable by the length of the seta or setal cluster on the carpus at the anterodistal junction of the propodus. This is minute in
|
||
<taxonomicName id="4C1D4D4FFF22D98FCAB819EAFBA3FCEC" authorityName="Vader and Krapp" authorityYear="2005" box="[999,1111,763,789]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FCAB819EAFBA3FCEC" box="[999,1111,763,789]" italics="true" pageId="151" pageNumber="152">kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
(length ~10% of the anterior margin of the carpus) and easily overlooked, but longer in
|
||
<taxonomicName id="4C1D4D4FFF22D98FCA1F180EFC35FCC0" authorityName="Conlan" authorityYear="1990" box="[832,961,799,825]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCA1F180EFC35FCC0" box="[832,961,799,825]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
(~25% of the length of the carpus). This setal length is invariant in other species of
|
||
<taxonomicName id="4C1D4D4FFF22D98FCB231852FD4EFCA5" authorityName=", Vader & Krapp" authorityYear="2005" box="[636,698,835,860]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B969EADEFF22D98FCB231852FD4EFCA5" box="[636,698,835,860]" italics="true" pageId="151" pageNumber="152">Jassa</emphasis>
|
||
</taxonomicName>
|
||
, so the length difference between
|
||
<taxonomicName id="4C1D4D4FFF22D98FCD601852FB3EFCA4" authorityName="Vader and Krapp" authorityYear="2005" box="[1087,1226,835,861]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FCD601852FB3EFCA4" box="[1087,1226,835,861]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1D4D4FFF22D98FCC5D1852FA76FCA4" authorityName="Conlan" authorityYear="1990" box="[1282,1410,835,861]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCC5D1852FA76FCA4" box="[1282,1410,835,861]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
is considered significant enough to indicate that these species are morphologically distinct. There are also shape and size differences: slender, long antennae in
|
||
<taxonomicName id="4C1D4D4FFF22D98FCB32189AFD1FFC5C" authorityName="Conlan" authorityYear="1990" box="[621,747,907,933]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCB32189AFD1FFC5C" box="[621,747,907,933]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
, shorter, stouter antennae in
|
||
<taxonomicName id="4C1D4D4FFF22D98FCD75189AFB47FC5C" authorityName="Vader and Krapp" authorityYear="2005" box="[1066,1203,907,933]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FCD75189AFB47FC5C" box="[1066,1203,907,933]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
; anteriorly produced coxa
|
||
<quantity id="4CE59B29FF22D98FC98B18BEFEF4FC30" box="[212,256,943,969]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="151" pageNumber="152" unit="in" value="1.0">1 in</quantity>
|
||
<taxonomicName id="4C1D4D4FFF22D98FC85718BEFE7CFC30" authorityName="Conlan" authorityYear="1990" box="[264,392,943,969]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FC85718BEFE7CFC30" box="[264,392,943,969]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
adult male and less produced coxa
|
||
<quantity id="4CE59B29FF22D98FCA4018BEFCBFFC30" box="[799,843,943,969]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="151" pageNumber="152" unit="in" value="1.0">1 in</quantity>
|
||
<taxonomicName id="4C1D4D4FFF22D98FCA0C18BEFC2AFC30" authorityName="Vader and Krapp" authorityYear="2005" box="[851,990,943,969]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FCA0C18BEFC2AFC30" box="[851,990,943,969]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
; differently shaped thumbs in the adult males with tendency to pronunciation of the defining spines in
|
||
<taxonomicName id="4C1D4D4FFF22D98FCA0418C2FC00FC14" box="[859,1012,979,1005]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilannna">
|
||
<emphasis id="B969EADEFF22D98FCA0418C2FC00FC14" box="[859,1012,979,1005]" italics="true" pageId="151" pageNumber="152">J. kjetilannna</emphasis>
|
||
</taxonomicName>
|
||
and loss in
|
||
<taxonomicName id="4C1D4D4FFF22D98FCD2518C2FB0EFC14" authorityName="Conlan" authorityYear="1990" box="[1146,1274,979,1005]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCD2518C2FB0EFC14" box="[1146,1274,979,1005]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
; and similarly sized pereopods
|
||
<quantity id="4CE59B29FF22D98FC80D18E7FE6EFBE8" box="[338,410,1014,1041]" metricMagnitude="-1" metricUnit="m" metricValue="1.524" metricValueMax="1.778" metricValueMin="1.27" pageId="151" pageNumber="152" unit="in" value="6.0" valueMax="7.0" valueMin="5.0">5–7 in</quantity>
|
||
<taxonomicName id="4C1D4D4FFF22D98FC8FE18E6FDD8FBE8" authorityName="Vader and Krapp" authorityYear="2005" box="[417,556,1015,1041]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="kjetilanna">
|
||
<emphasis id="B969EADEFF22D98FC8FE18E6FDD8FBE8" box="[417,556,1015,1041]" italics="true" pageId="151" pageNumber="152">J. kjetilanna</emphasis>
|
||
</taxonomicName>
|
||
with relatively strong spines at the anterodistal end of the propodus compared to increasingly longer pereopods
|
||
<quantity id="4CE59B29FF22D98FCB531F0BFDA7FBCC" box="[524,595,1050,1077]" metricMagnitude="-1" metricUnit="m" metricValue="1.524" metricValueMax="1.778" metricValueMin="1.27" pageId="151" pageNumber="152" unit="in" value="6.0" valueMax="7.0" valueMin="5.0">5–7 in</quantity>
|
||
<taxonomicName id="4C1D4D4FFF22D98FCB051F0AFD2EFBCC" authorityName="Conlan" authorityYear="1990" box="[602,730,1051,1077]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="151" pageNumber="152" phylum="Arthropoda" rank="species" species="thurstoni">
|
||
<emphasis id="B969EADEFF22D98FCB051F0AFD2EFBCC" box="[602,730,1051,1077]" italics="true" pageId="151" pageNumber="152">J. thurstoni</emphasis>
|
||
</taxonomicName>
|
||
with slender, seta-like spines anterodistally on the propodus.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |