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<document id="2BD5552856ABDAA3C067B6CBED1F0E19" ID-CLB-Dataset="8297" ID-DOI="10.11646/zootaxa.4921.1.1" ID-GBIF-Dataset="6f7c2191-a210-4685-98f6-7a90241131df" ID-ISSN="1175-5326" ID-Zenodo-Dep="4496015" ID-ZooBank="2A77E821-52F4-450C-8964-7928D36C0906" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1612329124618" checkinUser="plazi" docAuthor="Conlan, Kathleen E." docDate="2021" docId="03DFE565EA44D453FF133350D002FAD7" docLanguage="en" docName="zootaxa.4921.1.1.pdf" docOrigin="Zootaxa 4921 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Ischyrocerini Kroyer 1838" docType="treatment" docVersion="7" lastPageNumber="58" masterDocId="FFE69D1DEA7CD46AFF843708D564FFDA" masterDocTitle="New genera for species of Jassa Leach (Crustacea: Amphipoda) and their relationship to a revised Ischyrocerini" masterLastPageNumber="72" masterPageNumber="1" pageNumber="57" updateTime="1698926504305" updateUser="ExternalLinkService">
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<mods:title id="4478FE9AE7A06F0DDC9AC819B1D11A3D">New genera for species of Jassa Leach (Crustacea: Amphipoda) and their relationship to a revised Ischyrocerini</mods:title>
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<treatment id="03DFE565EA44D453FF133350D002FAD7" ID-DOI="http://doi.org/10.5281/zenodo.4534331" ID-GBIF-Taxon="177318894" ID-Zenodo-Dep="4534331" LSID="urn:lsid:plazi:treatment:03DFE565EA44D453FF133350D002FAD7" httpUri="http://treatment.plazi.org/id/03DFE565EA44D453FF133350D002FAD7" lastPageId="57" lastPageNumber="58" pageId="56" pageNumber="57">
<subSubSection id="C36C07F8EA44D452FF133350D756FBA8" box="[151,562,1112,1138]" pageId="56" pageNumber="57" type="nomenclature">
<paragraph id="8BC95473EA44D452FF133350D756FBA8" blockId="56.[151,562,1112,1174]" box="[151,562,1112,1138]" pageId="56" pageNumber="57">
<heading id="D081E31FEA44D452FF133350D756FBA8" bold="true" box="[151,562,1112,1138]" fontSize="11" level="2" pageId="56" pageNumber="57" reason="3">
<emphasis id="B9028861EA44D452FF133350D756FBA8" bold="true" box="[151,562,1112,1138]" pageId="56" pageNumber="57">
Tribe
<taxonomicName id="4C762FF0EA44D452FF663350D756FBA8" ID-CoL="7ZJPJ" authority="Kroyer, 1838" authorityName="Kroyer" authorityYear="1838" box="[226,562,1112,1138]" class="Malacostraca" family="Ischyroceridae" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="tribe" tribe="Ischyrocerini">
Ischyrocerini
<bibRefCitation id="EFE72982EA44D452FE0B3350D756FBA8" author="Kroyer, H." box="[399,562,1112,1138]" pageId="56" pageNumber="57" pagination="229 - 326" refId="ref40760" refString="Kroyer, H. (1838) Gronlands amfipoder beskrevne af Henrick Kroyer. Det Kongelige Danske Videnskabernes Selskabs Naturvidenskabelige og Mathematiske Afhandlinger, 7, 229 - 326. https: // doi. org / 10.5962 / bhl. title. 13747" type="journal article" year="1838">Krøyer, 1838</bibRefCitation>
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C36C07F8EA44D452FF133374D4CEFB4C" box="[151,426,1148,1174]" pageId="56" pageNumber="57" type="description">
<paragraph id="8BC95473EA44D452FF133374D4CEFB4C" blockId="56.[151,562,1112,1174]" box="[151,426,1148,1174]" pageId="56" pageNumber="57">
Supplementary
<tableCitation id="C6F461C8EA44D452FEC33374D4CEFB4C" box="[327,426,1148,1174]" captionStart="TABLE 2" captionStartId="7.[151,236,469,494]" captionTargetBox="[165,2001,543,1720]" captionText="TABLE 2. Earliest collection records for specimens examined in this paper or in the literature if identification is likely correct. Species are abbreviated by the first three letters of their names. Suggested status: I = indigenous; N = non-indigenous." httpUri="http://table.plazi.org/id/DF0904FBEA7BD46DFF1336DDD671FDCB" pageId="56" pageNumber="57" tableUuid="DF0904FBEA7BD46DFF1336DDD671FDCB">Table S2</tableCitation>
</paragraph>
</subSubSection>
<subSubSection id="C36C07F8EA44D452FF1333CCD732FB04" box="[151,598,1220,1247]" pageId="56" pageNumber="57" type="type_taxon">
<paragraph id="8BC95473EA44D452FF1333CCD732FB04" blockId="56.[151,1437,1220,2038]" box="[151,598,1220,1247]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF1333CCD440FB04" bold="true" box="[151,292,1220,1246]" pageId="56" pageNumber="57">
<typeStatus id="54CDEAD1EA44D452FF1333CCD5B6FB04" box="[151,210,1220,1246]" pageId="56" pageNumber="57">Type</typeStatus>
genus.
</emphasis>
<taxonomicName id="4C762FF0EA44D452FEAF33CCD732FB04" ID-CoL="7P7B2" authority="Kroyer, 1838" authorityName="Kroyer" authorityYear="1838" box="[299,598,1220,1247]" class="Malacostraca" family="Ischyroceridae" genus="Ischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FEAF33CCD4DFFB04" box="[299,443,1220,1246]" italics="true" pageId="56" pageNumber="57">Ischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA44D452FE4633CDD732FB04" author="Kroyer, H." box="[450,598,1220,1247]" pageId="56" pageNumber="57" pagination="229 - 326" refId="ref40760" refString="Kroyer, H. (1838) Gronlands amfipoder beskrevne af Henrick Kroyer. Det Kongelige Danske Videnskabernes Selskabs Naturvidenskabelige og Mathematiske Afhandlinger, 7, 229 - 326. https: // doi. org / 10.5962 / bhl. title. 13747" type="journal article" year="1838">Krøyer, 1838</bibRefCitation>
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="C36C07F8EA44D453FF4333E0D002FAD7" lastPageId="57" lastPageNumber="58" pageId="56" pageNumber="57" type="diagnosis">
<subSubSection id="C36C07F8EA44D452FF4333E0D678FAD8" box="[199,796,1256,1282]" pageId="56" pageNumber="57" type="diagnosis">
<paragraph id="8BC95473EA44D452FF4333E0D678FAD8" blockId="56.[151,1437,1220,2038]" box="[199,796,1256,1282]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF4333E0D678FAD8" bold="true" box="[199,796,1256,1282]" pageId="56" pageNumber="57">
Diagnosis (with changes from
<bibRefCitation id="EFE72982EA44D452FDAA33E0D7D6FAD8" author="Just, J." box="[558,690,1256,1282]" pageId="56" pageNumber="57" pagination="321 - 338" refId="ref40305" refString="Just, J. (2017) A fresh look at the higher classification of the Siphonoecetini Just, 1983 (Crustacea, Amphipoda, Ischyroceridae) 12: with a key to all taxa. Zootaxa, 4320 (2), 321 - 338. https: // doi. org / 10.11646 / zootaxa. 4320.2.7" type="journal article" year="2017">Just (2017)</bibRefCitation>
in bold).
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C36C07F8EA44D452FF433204D192F82C" pageId="56" pageNumber="57" type="description">
<paragraph id="8BC95473EA44D452FF433204D158FAFD" blockId="56.[151,1437,1220,2038]" box="[199,1084,1292,1319]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433204D455FAFC" box="[199,305,1292,1318]" italics="true" pageId="56" pageNumber="57">Antennae</emphasis>
: slender, antenna 1 with accessory flagellum (occasionally vestigial).
</paragraph>
<paragraph id="8BC95473EA44D452FF433238D01BFA91" blockId="56.[151,1437,1220,2038]" box="[199,1407,1328,1355]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433238D456FA90" box="[199,306,1328,1354]" italics="true" pageId="56" pageNumber="57">Mandible</emphasis>
: palp with 3 articles,
<emphasis id="B9028861EA44D452FDA13238D01CFA90" bold="true" box="[549,1400,1328,1354]" pageId="56" pageNumber="57">the third expanded distally (occasionally similar in shape to the second)</emphasis>
.
</paragraph>
<paragraph id="8BC95473EA44D452FF43325CD61AFA48" blockId="56.[151,1437,1220,2038]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF43325CD427FAB4" box="[199,323,1364,1390]" italics="true" pageId="56" pageNumber="57">Coxae 14</emphasis>
:
<emphasis id="B9028861EA44D452FED0325CD6F3FAB4" bold="true" box="[340,919,1364,1390]" pageId="56" pageNumber="57">progressively deepening, subrectangular to oval</emphasis>
(occasionally coxa 1 much smaller than and mostly obscured by coxa 2 and differing in shape), margins entire.
</paragraph>
<paragraph id="8BC95473EA44D452FF433294D015FA6C" blockId="56.[151,1437,1220,2038]" box="[199,1393,1436,1463]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433294D43EFA6C" box="[199,346,1436,1462]" italics="true" pageId="56" pageNumber="57">Gnathopod 1</emphasis>
: carpus shorter than the propodus (occasionally longer), propodus oval to weakly subchelate.
</paragraph>
<paragraph id="8BC95473EA44D452FF4332C8D6A1FA25" blockId="56.[151,1437,1220,2038]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF4332C8D43FFA00" box="[199,347,1472,1498]" italics="true" pageId="56" pageNumber="57">Gnathopod 2</emphasis>
: propodus in adult male (
<emphasis id="B9028861EA44D452FDF932C8D681FA00" bold="true" box="[637,997,1472,1498]" pageId="56" pageNumber="57">and occasionally in the female</emphasis>
) moderately to strongly enlarged compared to gnathopod 1, of varying shape (
<emphasis id="B9028861EA44D452FDD932ECD6D1FA24" bold="true" box="[605,949,1508,1534]" pageId="56" pageNumber="57">occasionally hardly modified</emphasis>
).
</paragraph>
<paragraph id="8BC95473EA44D452FF43310FD4A2F99C" blockId="56.[151,1437,1220,2038]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF43310FD4D1F99C" bold="true" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF43310FD40BF9F8" bold="true" box="[199,367,1543,1570]" italics="true" pageId="56" pageNumber="57">Pereopods 34</emphasis>
: merus moderately to fully overlapping the carpus anteriorly, dactyl shorter than the carpus (occasionally longer
</emphasis>
).
</paragraph>
<paragraph id="8BC95473EA44D452FF433158D026F9B1" blockId="56.[151,1437,1220,2038]" box="[199,1346,1616,1643]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433158D40BF9B0" box="[199,367,1616,1642]" italics="true" pageId="56" pageNumber="57">Pereopods 57</emphasis>
: of similar form, increasing in length backwards (
<emphasis id="B9028861EA44D452FC253158D056F9B0" bold="true" box="[929,1330,1616,1642]" pageId="56" pageNumber="57">occasionally 6 larger than 5 and 7</emphasis>
).
</paragraph>
<paragraph id="8BC95473EA44D452FF43317DD4DEF954" blockId="56.[151,1437,1220,2038]" box="[199,442,1652,1679]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF43317DD423F954" box="[199,327,1653,1678]" italics="true" pageId="56" pageNumber="57">Urosomites</emphasis>
: 13 free.
</paragraph>
<paragraph id="8BC95473EA44D452FF433190D1FCF90D" blockId="56.[151,1437,1220,2038]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433190D4ECF968" box="[199,392,1688,1714]" italics="true" pageId="56" pageNumber="57">Uropods 1 and 2</emphasis>
: peduncle without distoventral corona
<emphasis id="B9028861EA44D452FCC33190D6D4F968" bold="true" box="[839,944,1688,1714]" pageId="56" pageNumber="57">of spines</emphasis>
, with 2 subequal rami
<emphasis id="B9028861EA44D452FB3E3190D1ECF90C" bold="true" pageId="56" pageNumber="57">with or without an underlying peduncular spinous process (occasionally uropod 2 outer ramus modified</emphasis>
).
</paragraph>
<paragraph id="8BC95473EA44D452FF4331E8D632F8C5" blockId="56.[151,1437,1220,2038]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF4331E8D456F920" box="[199,306,1760,1786]" italics="true" pageId="56" pageNumber="57">Uropod 3</emphasis>
: peduncle long (
<emphasis id="B9028861EA44D452FE6A31E8D7A7F920" bold="true" box="[494,707,1760,1786]" pageId="56" pageNumber="57">occasionally short</emphasis>
), broad proximally, narrow distally, biramous (
<emphasis id="B9028861EA44D452FB5131E8D622F8C4" bold="true" pageId="56" pageNumber="57">occasionally uniramous), outer ramus terminating in cusps and/or spine(s</emphasis>
).
</paragraph>
<paragraph id="8BC95473EA44D452FF433020D106F899" blockId="56.[151,1437,1220,2038]" box="[199,1122,1832,1859]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433020D46BF898" box="[199,271,1832,1858]" italics="true" pageId="56" pageNumber="57">Telson</emphasis>
: entire,
<emphasis id="B9028861EA44D452FEE83020D13FF898" bold="true" box="[364,1115,1832,1858]" pageId="56" pageNumber="57">with one to many dorsally or apically projecting setae or spines</emphasis>
.
</paragraph>
<paragraph id="8BC95473EA44D452FF433044D192F82C" blockId="56.[151,1437,1220,2038]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FF433044D4D7F8BC" bold="true" box="[199,435,1868,1894]" pageId="56" pageNumber="57">Component genera.</emphasis>
<taxonomicName id="4C762FF0EA44D452FE3F3045D7EBF8BC" authority="Leach, 1814" authorityName="Leach" authorityYear="1814" box="[443,655,1868,1894]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FE3F3045D49DF8BC" box="[443,505,1869,1894]" italics="true" pageId="56" pageNumber="57">Jassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FD853044D7EBF8BC" author="Leach, W. E." box="[513,655,1868,1894]" pageId="56" pageNumber="57" pagination="385 - 437" refId="ref40894" refString="Leach, W. E. (1814) Crustaceology. Edinburgh Encyclopaedia, 7, 385 - 437." type="journal article" year="1814">Leach, 1814</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FD183044D6AFF8BC" authority="Kroyer, 1838" authorityName="Kroyer" authorityYear="1838" box="[668,971,1868,1895]" class="Malacostraca" family="Ischyroceridae" genus="Ischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FD183044D648F8BC" box="[668,812,1868,1894]" italics="true" pageId="56" pageNumber="57">Ischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA44D452FCB73045D6AFF8BC" author="Kroyer, H." box="[819,971,1868,1895]" pageId="56" pageNumber="57" pagination="229 - 326" refId="ref40760" refString="Kroyer, H. (1838) Gronlands amfipoder beskrevne af Henrick Kroyer. Det Kongelige Danske Videnskabernes Selskabs Naturvidenskabelige og Mathematiske Afhandlinger, 7, 229 - 326. https: // doi. org / 10.5962 / bhl. title. 13747" type="journal article" year="1838">Krøyer, 1838</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FC5C3044D077F8BC" authority="Stebbing, 1888" authorityName="Stebbing" authorityYear="1888" box="[984,1299,1868,1894]" class="Malacostraca" family="Aoridae" genus="Paradryope" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FC5C3044D13AF8BC" box="[984,1118,1868,1894]" italics="true" pageId="56" pageNumber="57">Paradryope</emphasis>
<bibRefCitation id="EFE72982EA44D452FBE13044D077F8BC" author="Stebbing, T. R. R." box="[1125,1299,1868,1894]" pageId="56" pageNumber="57" pagination="1 - 1737" refId="ref42661" refString="Stebbing, T. R. R. (1888) Report on the Amphipoda collected by HMS ' Challenger' during the years 1873 - 1876. Report on the Scientific Results of the Voyage of HMS ' Challenger' during the years 1873 - 1876, Zoology, 29, 1 - 1737." type="journal article" year="1888">Stebbing, 1888</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FA9B3045D427F850" authority="Stebbing, 1899" authorityName="Stebbing" authorityYear="1899" class="Malacostraca" family="Ischyroceridae" genus="Microjassa" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FA9B3045D0F8F8BC" box="[1311,1436,1869,1894]" italics="true" pageId="56" pageNumber="57">Microjassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FF133078D427F850" author="Stebbing, T. R. R." box="[151,323,1904,1930]" pageId="56" pageNumber="57" pagination="205 - 211" refId="ref42715" refString="Stebbing, T. R. R. (1899) Revision of Amphipoda (continued). Annals and Magazine of Natural History, 4 (21), 205 - 211. https: // doi. org / 10.1080 / 00222939908678185" type="journal article" year="1899">Stebbing, 1899</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FECA3079D715F850" authority="Stebbing, 1899" authorityName="Stebbing" authorityYear="1899" box="[334,625,1904,1930]" class="Malacostraca" family="Ischyroceridae" genus="Parajassa" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FECA3079D4A4F850" box="[334,448,1905,1930]" italics="true" pageId="56" pageNumber="57">Parajassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FE423078D715F850" author="Stebbing, T. R. R." box="[454,625,1904,1930]" pageId="56" pageNumber="57" pagination="205 - 211" refId="ref42715" refString="Stebbing, T. R. R. (1899) Revision of Amphipoda (continued). Annals and Magazine of Natural History, 4 (21), 205 - 211. https: // doi. org / 10.1080 / 00222939908678185" type="journal article" year="1899">Stebbing, 1899</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FDF83078D6F3F850" authority="Walker, 1907" authorityName="Walker" authorityYear="1907" box="[636,919,1904,1930]" class="Malacostraca" family="Ischyroceridae" genus="Hemijassa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FDF83078D6F3F850" bold="true" box="[636,919,1904,1930]" pageId="56" pageNumber="57">
<emphasis id="B9028861EA44D452FDF83078D791F850" bold="true" box="[636,757,1904,1930]" italics="true" pageId="56" pageNumber="57">Hemijassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FD7F3078D6F3F850" author="Walker, A. O." box="[763,919,1904,1930]" pageId="56" pageNumber="57" pagination="1 - 39" refId="ref43615" refString="Walker, A. O. (1907) Crustacea. III. Amphipoda. National Antartic Expedition 1901 - 1904. Natural History 3, 1 - 39." type="journal article" year="1907">Walker, 1907</bibRefCitation>
</emphasis>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FC213079D196F850" authority="K. H. Barnard, 1916" authorityName="K. H. Barnard" authorityYear="1916" box="[933,1266,1904,1931]" class="Malacostraca" family="Ischyroceridae" genus="Isaeopsis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FC213079D169F850" box="[933,1037,1905,1930]" italics="true" pageId="56" pageNumber="57">Isaeopsis</emphasis>
K.H.
<bibRefCitation id="EFE72982EA44D452FBD43078D196F850" author="Barnard, K. H." box="[1104,1266,1904,1930]" pageId="56" pageNumber="57" pagination="105 - 302" refId="ref37808" refString="Barnard, K. H. (1916) Contributions to the crustacean fauna of South Africa. 5. The Amphipoda. Annals of the South African Museum, 15 (3), 105 - 302. https: // doi. org / 10.5962 / bhl. title. 10646" type="journal article" year="1916">Barnard, 1916</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FB793078D4D2F874" authority="Schellenberg, 1931" authorityName="Schellenberg" authorityYear="1931" class="Malacostraca" family="Ischyroceridae" genus="Pseudischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FB793078D5B0F874" italics="true" pageId="56" pageNumber="57">Pseudischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA44D452FF5F309CD4D2F874" author="Schellenberg, A." box="[219,438,1940,1966]" pageId="56" pageNumber="57" pagination="1 - 290" refId="ref41976" refString="Schellenberg, A. (1931) Gammariden und Caprelliden des Magellangebietes, Sudgeorgiens und der Westantarktis. Further Zoological Results of the Swedish Antarctic Expedition 1901 - 1903, 2 (6), 1 - 290." type="journal article" year="1931">Schellenberg, 1931</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FE46309CD673F874" authority="Stephensen, 1944" authorityName="Stephensen" authorityYear="1944" box="[450,791,1940,1966]" class="Malacostraca" family="Corophiidae" genus="Bathyphotis" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FE46309CD72CF874" box="[450,584,1940,1966]" italics="true" pageId="56" pageNumber="57">Bathyphotis</emphasis>
<bibRefCitation id="EFE72982EA44D452FDCA309CD673F874" author="Stephensen, K." box="[590,791,1940,1966]" pageId="56" pageNumber="57" pagination="1 - 51" refId="ref42820" refString="Stephensen, K. (1944) Crustacea Malacostraca. VIII. (Amphipoda IV). Danish Ingolf Expedition, 3 (13), 1 - 51." type="journal article" year="1944">Stephensen, 1944</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FCA7309DD112F874" authority="J. L. Barnard, 1970" authorityName="J. L. Barnard" authorityYear="1970" box="[803,1142,1940,1967]" class="Malacostraca" family="Ischyroceridae" genus="Ventojassa" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FCA7309DD6FFF874" box="[803,923,1941,1966]" italics="true" pageId="56" pageNumber="57">Ventojassa</emphasis>
J.L.
<bibRefCitation id="EFE72982EA44D452FC57309CD112F874" author="Barnard, J. L." box="[979,1142,1940,1966]" pageId="56" pageNumber="57" pagination="1 - 286" refId="ref37624" refString="Barnard, J. L. (1970) Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contributions to Zoology, 34, 1 - 286. https: // doi. org / 10.5479 / si. 00810282.34" type="journal article" year="1970">Barnard, 1970</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FB06309CD5B6F809" authority="Conlan, 1995" authorityName="Conlan" authorityYear="1995" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FB06309CD059F874" box="[1154,1341,1940,1966]" italics="true" pageId="56" pageNumber="57">Neoischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA44D452FAC0309CD5B6F809" author="Conlan, K. E." pageId="56" pageNumber="57" pagination="333 - 377" refId="ref38932" refString="Conlan, K. E. (1995) Thumbing doesn't always make the genus: revision of Microjassa Stebbing (Crustacea: Amphipoda: Ischyroceridae). Bulletin of Marine Science, 57, 333 - 377." type="journal article" year="1995">Conlan, 1995</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FF5B30B0D752F809" authority="Myers, 1995" authorityName="Myers" authorityYear="1995" box="[223,566,1976,2003]" class="Malacostraca" family="Ischyroceridae" genus="Scutischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FF5B30B0D4F9F808" box="[223,413,1976,2002]" italics="true" pageId="56" pageNumber="57">Scutischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA44D452FE2130B1D752F809" author="Myers, A. A." box="[421,566,1976,2003]" pageId="56" pageNumber="57" pagination="25 - 95" refId="ref41289" refString="Myers, A. A. (1995) The Amphipoda (Crustacea) of Madang Lagoon: Aoridae, Isaeidae, Ischyroceridae and Neomegamphopidae. Records of the Australian Museum Supplement, 22, 25 - 95. https: // doi. org / 10.3853 / j. 0812 - 7387.22.1995.121" type="journal article" year="1995">Myers, 1995</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FDC630B0D6D3F808" authority="Vader &amp; Myers, 1996" authorityName="Vader &amp; Myers" authorityYear="1996" box="[578,951,1976,2003]" class="Malacostraca" family="Ischyroceridae" genus="Ruffojassa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FDC630B0D7DCF808" box="[578,696,1976,2002]" italics="true" pageId="56" pageNumber="57">Ruffojassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FD4430B0D6D3F808" author="Vader, W. &amp; Myers, A. A." box="[704,951,1976,2003]" pageId="56" pageNumber="57" pagination="263 - 292" refId="ref43237" refString="Vader, W. &amp; Myers, A. A. (1996) Amphipods living in association with hermit crabs in SE Australia. I. Five new Ischyroceridae. Bollettino del Museo Civico di Storia Naturale di Verona, 20, 263 - 292." type="journal article" year="1996">Vader &amp; Myers, 1996</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FC4030B1D02EF808" authority="Vader &amp; Myers, 1996" authorityName="Vader &amp; Myers" authorityYear="1996" box="[964,1354,1976,2003]" class="Malacostraca" family="Ischyroceridae" genus="Veronajassa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FC4030B1D128F808" box="[964,1100,1977,2002]" italics="true" pageId="56" pageNumber="57">Veronajassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FBD730B0D02EF808" author="Vader, W. &amp; Myers, A. A." box="[1107,1354,1976,2003]" pageId="56" pageNumber="57" pagination="263 - 292" refId="ref43237" refString="Vader, W. &amp; Myers, A. A. (1996) Amphipods living in association with hermit crabs in SE Australia. I. Five new Ischyroceridae. Bollettino del Museo Civico di Storia Naturale di Verona, 20, 263 - 292." type="journal article" year="1996">Vader &amp; Myers, 1996</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FAD230B0D416F82C" authority="Conlan, 2007" authorityName="Conlan" authorityYear="2007" class="Malacostraca" family="Ischyroceridae" genus="Alatajassa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FAD230B0D5B5F82C" italics="true" pageId="56" pageNumber="57">Alatajassa</emphasis>
<bibRefCitation id="EFE72982EA44D452FF5C30D4D416F82C" author="Conlan, K. E." box="[216,370,2012,2038]" pageId="56" pageNumber="57" pagination="1339 - 1354" refId="ref38971" refString="Conlan, K. E. (2007) Alatajassa (Amphipoda, Corophiidea), a new genus from the Pacific coast of North America. Crustaceana, 2007, 1339 - 1354. https: // doi. org / 10.1163 / 156854007782605574" type="journal article" year="2007">Conlan, 2007</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C762FF0EA44D452FEF930D5D64DF82C" authority="Souza-Filho &amp; Serejo, 2014" authorityName="Souza-Filho &amp; Serejo" authorityYear="2014" box="[381,809,2012,2038]" class="Malacostraca" family="Ischyroceridae" genus="Myersius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA44D452FEF930D5D480F82C" box="[381,484,2013,2038]" italics="true" pageId="56" pageNumber="57">Myersius</emphasis>
<bibRefCitation id="EFE72982EA44D452FE6F30D4D64DF82C" author="Souza-Filho, J. F. &amp; Serejo, C. S." box="[491,809,2012,2038]" pageId="56" pageNumber="57" pagination="34 - 85" refId="ref42556" refString="Souza-Filho, J. F. &amp; Serejo, C. S. (2014) On the phylogeny of Ischyroceridae (Amphipoda, Senticaudata, Corophiida), with the description of a new genus and eight new species from deep-sea Brazilian waters. Zoological Journal of the Linnean Society, 170, 34 - 85. https: // doi. org / 10.1111 / zoj. 12099" type="journal article" year="2014">Souza-Filho &amp; Serejo, 2014</bibRefCitation>
</taxonomicName>
;
<emphasis id="B9028861EA44D452FCB030D3D192F82C" bold="true" box="[820,1270,2011,2038]" pageId="56" pageNumber="57">
<taxonomicName id="4C762FF0EA44D452FCB030D3D6C5F82C" authority="Conlan, 2021" authorityName="Conlan" authorityYear="2021" box="[820,929,2011,2038]" class="Malacostraca" family="Ischyroceridae" genus="Pleojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus" status="gen. nov.">
<emphasis id="B9028861EA44D452FCB030D3D6C5F82C" bold="true" box="[820,929,2011,2038]" italics="true" pageId="56" pageNumber="57">Pleojassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A231351AEA44D452FC2C30D4D69CF82C" box="[936,1016,2012,2038]" pageId="56" pageNumber="57" rank="genus">n. gen.</taxonomicNameLabel>
;
<taxonomicName id="4C762FF0EA44D452FB8130D3D1C6F82C" authority="Conlan, 2021" authorityName="Conlan" authorityYear="2021" box="[1029,1186,2011,2038]" class="Malacostraca" family="Ischyroceridae" genus="Plumulojassa" higherTaxonomySource="CoL" kingdom="Animalia" order="Amphipoda" pageId="56" pageNumber="57" phylum="Arthropoda" rank="genus" status="gen. nov.">
<emphasis id="B9028861EA44D452FB8130D3D1C6F82C" bold="true" box="[1029,1186,2011,2038]" italics="true" pageId="56" pageNumber="57">Plumulojassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A231351AEA44D452FB2D30D4D192F82C" box="[1193,1270,2012,2038]" pageId="56" pageNumber="57" rank="genus">n. gen.</taxonomicNameLabel>
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C36C07F8EA45D453FF13379FD7AAFF68" box="[151,718,151,178]" pageId="57" pageNumber="58" type="multiple">
<paragraph id="8BC95473EA45D453FF13379FD7AAFF68" blockId="57.[151,718,151,178]" box="[151,718,151,178]" pageId="57" pageNumber="58">
<emphasis id="B9028861EA45D453FF13379FD7AAFF68" bold="true" box="[151,718,151,178]" pageId="57" pageNumber="58">
Changes to
<taxonomicName id="4C762FF0EA45D453FEAE379FD4A2FF68" authorityName="Kroyer" authorityYear="1838" box="[298,454,151,178]" class="Malacostraca" family="Ischyroceridae" genus="Ischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FEAE379FD4A2FF68" bold="true" box="[298,454,151,178]" italics="true" pageId="57" pageNumber="58">Ischyrocerus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C762FF0EA45D453FD80379FD7AAFF68" authorityName="Conlan" authorityYear="1995" box="[516,718,151,178]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FD80379FD7AAFF68" bold="true" box="[516,718,151,178]" italics="true" pageId="57" pageNumber="58">Neoischyrocerus</emphasis>
</taxonomicName>
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C36C07F8EA45D453FF1337D7D002FAD7" pageId="57" pageNumber="58" type="discussion">
<paragraph id="8BC95473EA45D453FF1337D7D718FE53" blockId="57.[151,1437,223,1294]" pageId="57" pageNumber="58">
<taxonomicName id="4C762FF0EA45D453FF1337D7D440FF23" authorityName="Kroyer" authorityYear="1838" box="[151,292,223,249]" class="Malacostraca" family="Ischyroceridae" genus="Ischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FF1337D7D440FF23" box="[151,292,223,249]" italics="true" pageId="57" pageNumber="58">Ischyrocerus</emphasis>
</taxonomicName>
is primarily a cold water, Northern Hemisphere genus, captured from deep trawls (
<bibRefCitation id="EFE72982EA45D453FB5137D7D0FCFF23" author="Stephensen, K." box="[1237,1432,223,249]" pageId="57" pageNumber="58" pagination="1 - 51" refId="ref42820" refString="Stephensen, K. (1944) Crustacea Malacostraca. VIII. (Amphipoda IV). Danish Ingolf Expedition, 3 (13), 1 - 51." type="journal article" year="1944">Stephensen 1944</bibRefCitation>
;
<bibRefCitation id="EFE72982EA45D453FF13360BD42DFEC4" author="Gurjanova, E." box="[151,329,259,286]" pageId="57" pageNumber="58" pagination="1 - 1029" refId="ref39981" refString="Gurjanova, E. (1951) Bokoplavy morei SSSR i sopredelnykh vod (Amphipoda, Gammaridea). [Amphipods of the seas of USSR and adjacent waters (Amphipoda, Gammaridea)]. Opredeliteli po faune SSSR, Akademiya Nauk SSSR, 41, 1 - 1029." type="journal article" year="1951">Gurjanova 1951</bibRefCitation>
) as far north as the high Arctic, but also found in the intertidal and shallow subtidal zone (J.L.
<bibRefCitation id="EFE72982EA45D453FAC7360BD5B6FE98" author="Barnard, J. L." pageId="57" pageNumber="58" pagination="3 - 72" refId="ref37507" refString="Barnard, J. L. (1962) Benthic marine Amphipoda of Southern California: Families Aoridae, Photidae, Ischyroceridae, Corophiidae, Podoceridae. Pacific Naturalist, 3 (1), 3 - 72." type="journal article" year="1962">Barnard 1962</bibRefCitation>
). It has been extensively found in the Southern Hemisphere as well, though mostly in warmer waters (
<bibRefCitation id="EFE72982EA45D453FAD0362FD5B4FEBC" author="Myers, A. A." pageId="57" pageNumber="58" pagination="25 - 95" refId="ref41289" refString="Myers, A. A. (1995) The Amphipoda (Crustacea) of Madang Lagoon: Aoridae, Isaeidae, Ischyroceridae and Neomegamphopidae. Records of the Australian Museum Supplement, 22, 25 - 95. https: // doi. org / 10.3853 / j. 0812 - 7387.22.1995.121" type="journal article" year="1995">Myers 1995</bibRefCitation>
,
<bibRefCitation id="EFE72982EA45D453FF5A3643D47CFEBF" author="Myers, A. A." box="[222,280,331,357]" pageId="57" pageNumber="58" pagination="99 - 109" refId="ref41342" refString="Myers, A. A. (1997) Amphipoda from the South Pacific: Western Samoa. Records-Australian Museum, 49, 99 - 109. https: // doi. org / 10.3853 / j. 0067 - 1975.49.1997.1260" type="journal article" year="1997">1997</bibRefCitation>
;
<bibRefCitation id="EFE72982EA45D453FEA23644D4F1FEBF" author="Just, J." box="[294,405,331,358]" pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just 2009</bibRefCitation>
). This large genus requires revision and may prove to be less cosmopolitan than previously thought by J.L.
<bibRefCitation id="EFE72982EA45D453FEC03667D71DFE53" author="Barnard, J. L. &amp; Karaman, G. S." box="[324,633,367,394]" pageId="57" pageNumber="58" pagination="419 - 866" refId="ref37747" refString="Barnard, J. L. &amp; Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids) (Part 1). Records of the Australian Museum, Supplement 13, 419 - 866. https: // doi. org / 10.3853 / j. 0812 - 7387.13.1991.367" type="journal article" year="1991">
Barnard &amp;
<collectingRegion id="49B29A91EA45D453FE443678D741FE50" box="[448,549,368,394]" country="Turkey" name="Karaman" pageId="57" pageNumber="58">Karaman</collectingRegion>
(1991)
</bibRefCitation>
.
</paragraph>
<paragraph id="8BC95473EA45D453FF43369BD167FC7F" blockId="57.[151,1437,223,1294]" pageId="57" pageNumber="58">
Three genera have been created for warm water
<taxonomicName id="4C762FF0EA45D453FD52369BD607FE77" authorityName="Kroyer" authorityYear="1838" box="[726,867,403,429]" class="Malacostraca" family="Ischyroceridae" genus="Ischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FD52369BD607FE77" box="[726,867,403,429]" italics="true" pageId="57" pageNumber="58">Ischyrocerus</emphasis>
</taxonomicName>
-like species:
<taxonomicName id="4C762FF0EA45D453FC7D369BD02FFE74" authority="Conlan, 1995" authorityName="Conlan" authorityYear="1995" box="[1017,1355,403,430]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FC7D369BD1D5FE77" box="[1017,1201,403,429]" italics="true" pageId="57" pageNumber="58">Neoischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA45D453FB33369BD02FFE74" author="Conlan, K. E." box="[1207,1355,403,430]" pageId="57" pageNumber="58" pagination="333 - 377" refId="ref38932" refString="Conlan, K. E. (1995) Thumbing doesn't always make the genus: revision of Microjassa Stebbing (Crustacea: Amphipoda: Ischyroceridae). Bulletin of Marine Science, 57, 333 - 377." type="journal article" year="1995">Conlan, 1995</bibRefCitation>
</taxonomicName>
(4 species),
<taxonomicName id="4C762FF0EA45D453FF5C36BFD761FE0B" authority="Just, 2009" authorityName="Just" authorityYear="2009" box="[216,517,439,466]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FF5C36BFD4F4FE0B" box="[216,400,439,465]" italics="true" pageId="57" pageNumber="58">Coxischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA45D453FE1236B0D761FE0B" author="Just, J." box="[406,517,439,466]" pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just, 2009</bibRefCitation>
</taxonomicName>
(2 species) and
<taxonomicName id="4C762FF0EA45D453FD3236BFD68EFE0B" authority="Just, 2009" authorityName="Just" authorityYear="2009" box="[694,1002,439,466]" class="Malacostraca" family="Ischyroceridae" genus="Tropischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FD3236BFD611FE0B" box="[694,885,439,465]" italics="true" pageId="57" pageNumber="58">Tropischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA45D453FCFF36B0D68EFE0B" author="Just, J." box="[891,1002,439,466]" pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just, 2009</bibRefCitation>
</taxonomicName>
(2 species). These genera embrace species in which the male develops an enormously lengthened and pendulous gnathopod 2 (about 200300% the length of gnathopod 1) with an anteriorly rounded ischium and a very long propodus with the palm nearly the full length of the propodus, and the proximal end of the palm marked by a bulge next to the carpus (the S. Californian
<taxonomicName id="4C762FF0EA45D453FB61352CD425FDB8" authority="(J. L. Barnard, 1969)" baseAuthorityName="J. L. Barnard" baseAuthorityYear="1969" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="claustris">
<emphasis id="B9028861EA45D453FB61352CD000FDE7" box="[1253,1380,547,573]" italics="true" pageId="57" pageNumber="58">N. claustris</emphasis>
(J.L.
<bibRefCitation id="EFE72982EA45D453FF13354FD45DFDB8" author="Barnard, J. L." box="[151,313,583,610]" pageId="57" pageNumber="58" pagination="1 - 230" refId="ref37574" refString="Barnard, J. L. (1969) Gammaridean Amphipoda of the rocky intertidal of California: Monterey Bay to La Jolla. Bulletin of the United States National Museum, 258, 1 - 230. https: // doi. org / 10.5479 / si. 03629236.258.1" type="journal article" year="1969">Barnard, 1969</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C762FF0EA45D453FECA3540D7C9FDBB" authority="(J. L. Barnard, 1979)" baseAuthorityName="J. L. Barnard" baseAuthorityYear="1979" box="[334,685,583,609]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="chinipa">
<emphasis id="B9028861EA45D453FECA3540D4A7FDBB" box="[334,451,583,609]" italics="true" pageId="57" pageNumber="58">N. chinipa</emphasis>
(J.L.
<bibRefCitation id="EFE72982EA45D453FD81354FD7C0FDBB" author="Barnard, J. L." box="[517,676,583,609]" pageId="57" pageNumber="58" pagination="1 - 149" refId="ref37702" refString="Barnard, J. L. (1979) Littoral gammaridean Amphipoda from the Gulf of California and the Galapagos Islands. Smithsonian Contributions to Zoology, 271, 1 - 149. https: // doi. org / 10.5479 / si. 00810282.271" type="journal article" year="1979">Barnard, 1979</bibRefCitation>
)
</taxonomicName>
from the Galapagos and Pacific
<collectingCountry id="F36114E3EA45D453FB993540D113FDB8" box="[1053,1143,584,610]" name="Panama" pageId="57" pageNumber="58">Panama</collectingCountry>
,
<taxonomicName id="4C762FF0EA45D453FB003540D5AAFD5F" authority="Ortiz &amp; Lalana, 2002" authorityName="Ortiz &amp; Lalana" authorityYear="2002" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="vidali">
<emphasis id="B9028861EA45D453FB003540D180FDBB" box="[1156,1252,583,609]" italics="true" pageId="57" pageNumber="58">N. vidali</emphasis>
<bibRefCitation id="EFE72982EA45D453FB68354FD5AAFD5F" author="Ortiz, M. &amp; Lalana, R." pageId="57" pageNumber="58" pagination="37 - 42" refId="ref41559" refString="Ortiz, M. &amp; Lalana, R. (2002) Primer registro para el Mar Caribe y el Archipielago Cubano del genero Neoischyrocerus (Am- phipoda, Ischyroceridae), con la descripcion de una nueva especie de Cuba. Avicennia, 15, 37 - 42." type="journal article" year="2002">Ortiz &amp; Lalana, 2002</bibRefCitation>
</taxonomicName>
from the Cuban Caribbean,
<taxonomicName id="4C762FF0EA45D453FD953564D604FD5C" authority="(Ruffo, 1959)" baseAuthorityName="Ruffo" baseAuthorityYear="1959" box="[529,864,619,646]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="inexpectatus">
<emphasis id="B9028861EA45D453FD953564D7D9FD5F" box="[529,701,620,646]" italics="true" pageId="57" pageNumber="58">C. inexpectatus</emphasis>
(
<bibRefCitation id="EFE72982EA45D453FD483563D63CFD5C" author="Ruffo, S." box="[716,856,619,646]" pageId="57" pageNumber="58" pagination="402 - 416" refId="ref41778" refString="Ruffo, S. (1959) Contributo alla conoscenza degli anfipodi delle grotte sottomarine. Pubblicazioni della Stazione Zoologica di Napoli, 30 (Supplemento), 402 - 416" type="book chapter" year="1959">Ruffo, 1959</bibRefCitation>
)
</taxonomicName>
from the Mediterranean Sea and
<taxonomicName id="4C762FF0EA45D453FB673564D5BDFD73" authority="(Myers, 1989)" baseAuthorityName="Myers" baseAuthorityYear="1989" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="socia">
<emphasis id="B9028861EA45D453FB673564D05FFD5F" box="[1251,1339,620,645]" italics="true" pageId="57" pageNumber="58">T. socia</emphasis>
(
<bibRefCitation id="EFE72982EA45D453FAC83563D5B4FD73" author="Myers, A. A." pageId="57" pageNumber="58" pagination="432 - 438" refId="ref41228" refString="Myers, A. A. (1989) Family Ischyroceridae. In: Ruffo, S. (Ed.), The Amphipoda of the Mediterranean. Part 2. Gammaridea (Haustoriidae to Lysianassidae). Memoires de l'Institut oceanographique, Monaco. No. 13. Musee Oceanographique, Monaco, pp. 432 - 438." type="book chapter" year="1989">Myers, 1989</bibRefCitation>
)
</taxonomicName>
from Bora Bora), a tooth-like projection (e.g.,
<taxonomicName id="4C762FF0EA45D453FD5F3598D150FD73" authority="(J. L. Barnard, 1970)" baseAuthorityName="J. L. Barnard" baseAuthorityYear="1970" box="[731,1076,655,681]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="lilipuna">
<emphasis id="B9028861EA45D453FD5F3598D635FD73" box="[731,849,655,681]" italics="true" pageId="57" pageNumber="58">N. lilipuna</emphasis>
(J.L.
<bibRefCitation id="EFE72982EA45D453FC0A3587D148FD73" author="Barnard, J. L." box="[910,1068,655,681]" pageId="57" pageNumber="58" pagination="1 - 286" refId="ref37624" refString="Barnard, J. L. (1970) Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contributions to Zoology, 34, 1 - 286. https: // doi. org / 10.5479 / si. 00810282.34" type="journal article" year="1970">Barnard, 1970</bibRefCitation>
)
</taxonomicName>
from Hawaii and
<taxonomicName id="4C762FF0EA45D453FB7D3598D5AAFD17" authority="Just, 2009" authorityName="Just" authorityYear="2009" class="Malacostraca" family="Ischyroceridae" genus="Tropischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="pugilus">
<emphasis id="B9028861EA45D453FB7D3598D001FD73" box="[1273,1381,655,681]" italics="true" pageId="57" pageNumber="58">T. pugilus</emphasis>
<bibRefCitation id="EFE72982EA45D453FAEF3598D5AAFD17" author="Just, J." pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just, 2009</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="F36114E3EA45D453FE9035BBD419FD14" box="[276,381,691,718]" name="Australia" pageId="57" pageNumber="58">Australia</collectingCountry>
), or with neither (e.g.,
<taxonomicName id="4C762FF0EA45D453FDFB35BCD6CBFD17" authority="Just, 2009" authorityName="Just" authorityYear="2009" box="[639,943,691,718]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="rhombocoxus">
<emphasis id="B9028861EA45D453FDFB35BCD651FD17" box="[639,821,691,718]" italics="true" pageId="57" pageNumber="58">C. rhombocoxus</emphasis>
<bibRefCitation id="EFE72982EA45D453FCBA35BCD6CBFD17" author="Just, J." box="[830,943,691,718]" pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just, 2009</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="F36114E3EA45D453FC7135BBD13BFD14" box="[1013,1119,691,718]" name="Australia" pageId="57" pageNumber="58">Australia</collectingCountry>
). The dactyl may be the full length of the propodus or shorter, the length growth related. By comparison, the females gnathopods are similarly sized with the second only slightly larger than the first. Other commonalities are antennae with long filtering setae that are not pediform or sexually dimorphic, a 2-articulate accessory flagellum with the second article minute, pereopods 3 and 4 with little overlap of the merus over the carpus, a well developed peduncular spinous process under the rami of uropod 1, a spiny peduncle of uropod 3 with the outer ramus bearing a row of minute cusps and the inner ramus tipped by a small spine, and the telson with a pair of strong, dorsally projecting spines.
</paragraph>
<paragraph id="8BC95473EA45D453FF4334A7D65AFB78" blockId="57.[151,1437,223,1294]" pageId="57" pageNumber="58">
The difficulty with these genera is where species cross the generic boundaries. Examples are: enlarged coxa 2 relative to coxa
<quantity id="4C8EF996EA45D453FECA34DBD41EFC37" box="[334,378,979,1005]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="57" pageNumber="58" unit="in" value="1.0">1 in</quantity>
the adult male (
<taxonomicName id="4C762FF0EA45D453FDB134DCD78FFC37" authorityName="Just" authorityYear="2009" box="[565,747,979,1006]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="rhombocoxus">
<emphasis id="B9028861EA45D453FDB134DCD78FFC37" box="[565,747,979,1006]" italics="true" pageId="57" pageNumber="58">C. rhombocoxus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C762FF0EA45D453FCA134DCD6C1FC37" baseAuthorityName="J. L. Barnard" baseAuthorityYear="1969" box="[805,933,979,1005]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="claustris">
<emphasis id="B9028861EA45D453FCA134DCD6C1FC37" box="[805,933,979,1005]" italics="true" pageId="57" pageNumber="58">N. claustris</emphasis>
</taxonomicName>
), similar gnathopod propodus appearance as noted above, and similar female gnathopod palms (convex in all species in the three genera except for
<taxonomicName id="4C762FF0EA45D453FA9A34F0D0E8FBCB" authorityName="Just" authorityYear="2009" box="[1310,1420,1015,1041]" class="Malacostraca" family="Ischyroceridae" genus="Tropischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="pugilus">
<emphasis id="B9028861EA45D453FA9A34F0D0E8FBCB" box="[1310,1420,1015,1041]" italics="true" pageId="57" pageNumber="58">T. pugilus</emphasis>
</taxonomicName>
), pereopod 3 and 4 propodus posteriorly spinose (
<taxonomicName id="4C762FF0EA45D453FD233314D67FFBEF" baseAuthorityName="J. L. Barnard" baseAuthorityYear="1970" box="[679,795,1051,1077]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="lilipuna">
<emphasis id="B9028861EA45D453FD233314D67FFBEF" box="[679,795,1051,1077]" italics="true" pageId="57" pageNumber="58">N. lilipuna</emphasis>
</taxonomicName>
,
<taxonomicName id="4C762FF0EA45D453FCAD3314D6E2FBEF" authorityName="Ortiz &amp; Lalana" authorityYear="2002" box="[809,902,1051,1077]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="vidali">
<emphasis id="B9028861EA45D453FCAD3314D6E2FBEF" box="[809,902,1051,1077]" italics="true" pageId="57" pageNumber="58">N. vidali</emphasis>
</taxonomicName>
,
<taxonomicName id="4C762FF0EA45D453FC103314D68CFBEF" baseAuthorityName="Myers" baseAuthorityYear="1989" box="[916,1000,1052,1077]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="socia">
<emphasis id="B9028861EA45D453FC103314D68CFBEF" box="[916,1000,1052,1077]" italics="true" pageId="57" pageNumber="58">T. socia</emphasis>
</taxonomicName>
and
<emphasis id="B9028861EA45D453FB993314D1ABFBEF" box="[1053,1231,1051,1078]" italics="true" pageId="57" pageNumber="58">
<taxonomicName id="4C762FF0EA45D453FB993314D1A2FBEF" baseAuthorityName="Ruffo" baseAuthorityYear="1959" box="[1053,1222,1051,1078]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="inexpectatus">C. inexpectatus</taxonomicName>
)
</emphasis>
. The generic-level differences among the genera therefore recede into issues of sexual variation (e.g., enlargement of coxa 2 relative to coxa 1 that was used to define
<taxonomicName id="4C762FF0EA45D453FE6C336BD7C4FBA7" authorityName="Just" authorityYear="2009" box="[488,672,1123,1149]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FE6C336BD7C4FBA7" box="[488,672,1123,1149]" italics="true" pageId="57" pageNumber="58">Coxischyrocerus</emphasis>
</taxonomicName>
but also occurs in
<taxonomicName id="4C762FF0EA45D453FCEA336BD142FBA7" authorityName="Conlan" authorityYear="1995" box="[878,1062,1123,1149]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FCEA336BD142FBA7" box="[878,1062,1123,1149]" italics="true" pageId="57" pageNumber="58">Neoischyrocerus</emphasis>
</taxonomicName>
, or the modified pereopod 5 basis shape in adult males of
<taxonomicName id="4C762FF0EA45D453FE1F3380D72BFB7B" authorityName="Just" authorityYear="2009" box="[411,591,1159,1186]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="rhombocoxus">
<emphasis id="B9028861EA45D453FE1F3380D72BFB7B" box="[411,591,1159,1186]" italics="true" pageId="57" pageNumber="58">C. rhombocoxus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C762FF0EA45D453FD003380D649FB7B" baseAuthorityName="Ruffo" baseAuthorityYear="1959" box="[644,813,1160,1186]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="species" species="inexpectatus">
<emphasis id="B9028861EA45D453FD003380D649FB7B" box="[644,813,1160,1186]" italics="true" pageId="57" pageNumber="58">C. inexpectatus</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="8BC95473EA45D453FF4333A3D002FAD7" blockId="57.[151,1437,223,1294]" pageId="57" pageNumber="58">
Therefore,
<taxonomicName id="4C762FF0EA45D453FEC733A3D711FB1F" authority="Just, 2009" authorityName="Just" authorityYear="2009" box="[323,629,1195,1222]" class="Malacostraca" family="Ischyroceridae" genus="Coxischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FEC733A3D49AFB1F" box="[323,510,1195,1221]" italics="true" pageId="57" pageNumber="58">Coxischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA45D453FD8033A4D711FB1F" author="Just, J." box="[516,629,1195,1222]" pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just, 2009</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="4C762FF0EA45D453FD2D33A3D686FB1F" authority="Just, 2009" authorityName="Just" authorityYear="2009" box="[681,994,1195,1222]" class="Malacostraca" family="Ischyroceridae" genus="Tropischyrocerus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FD2D33A3D60FFB1F" box="[681,875,1195,1221]" italics="true" pageId="57" pageNumber="58">Tropischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA45D453FCF533A4D686FB1F" author="Just, J." box="[881,994,1195,1222]" pageId="57" pageNumber="58" pagination="463 - 486" refId="ref40273" refString="Just, J. (2009) Ischyroceridae. Zootaxa, 2260 (1), 463 - 486. https: // doi. org / 10.11646 / zootaxa. 2260.1.27" type="journal article" year="2009">Just, 2009</bibRefCitation>
</taxonomicName>
are herein merged into the senior genus
<taxonomicName id="4C762FF0EA45D453FF1333C7D493FB30" authority="Conlan, 1995" authorityName="Conlan" authorityYear="1995" box="[151,503,1231,1258]" class="Malacostraca" family="Ischyroceridae" genus="Neoischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FF1333C7D436FB33" box="[151,338,1231,1257]" italics="true" pageId="57" pageNumber="58">Neoischyrocerus</emphasis>
<bibRefCitation id="EFE72982EA45D453FEDF33C7D493FB30" author="Conlan, K. E." box="[347,503,1231,1258]" pageId="57" pageNumber="58" pagination="333 - 377" refId="ref38932" refString="Conlan, K. E. (1995) Thumbing doesn't always make the genus: revision of Microjassa Stebbing (Crustacea: Amphipoda: Ischyroceridae). Bulletin of Marine Science, 57, 333 - 377." type="journal article" year="1995">Conlan, 1995</bibRefCitation>
</taxonomicName>
.
<bibRefCitation id="EFE72982EA45D453FD8733D8D7F3FB30" author="Myers, A. A." box="[515,663,1231,1258]" pageId="57" pageNumber="58" pagination="25 - 95" refId="ref41289" refString="Myers, A. A. (1995) The Amphipoda (Crustacea) of Madang Lagoon: Aoridae, Isaeidae, Ischyroceridae and Neomegamphopidae. Records of the Australian Museum Supplement, 22, 25 - 95. https: // doi. org / 10.3853 / j. 0812 - 7387.22.1995.121" type="journal article" year="1995">Myers (1995</bibRefCitation>
,
<bibRefCitation id="EFE72982EA45D453FD2133C7D7BAFB33" author="Myers, A. A." box="[677,734,1231,1257]" pageId="57" pageNumber="58" pagination="99 - 109" refId="ref41342" refString="Myers, A. A. (1997) Amphipoda from the South Pacific: Western Samoa. Records-Australian Museum, 49, 99 - 109. https: // doi. org / 10.3853 / j. 0067 - 1975.49.1997.1260" type="journal article" year="1997">1997</bibRefCitation>
) noted the need for diminutive Indo-Pacific species placed at that time in
<taxonomicName id="4C762FF0EA45D453FE9A33FBD4CAFAD7" authorityName="Kroyer" authorityYear="1838" box="[286,430,1267,1293]" class="Malacostraca" family="Ischyroceridae" genus="Ischyrocerus" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FE9A33FBD4CAFAD7" box="[286,430,1267,1293]" italics="true" pageId="57" pageNumber="58">Ischyrocerus</emphasis>
</taxonomicName>
or
<taxonomicName id="4C762FF0EA45D453FE5733FCD775FAD7" authorityName="Leach" authorityYear="1814" box="[467,529,1268,1293]" class="Malacostraca" family="Ischyroceridae" genus="Jassa" kingdom="Animalia" order="Amphipoda" pageId="57" pageNumber="58" phylum="Arthropoda" rank="genus">
<emphasis id="B9028861EA45D453FE5733FCD775FAD7" box="[467,529,1268,1293]" italics="true" pageId="57" pageNumber="58">Jassa</emphasis>
</taxonomicName>
to be placed in their own genus and these are also included, as noted below.
</paragraph>
</subSubSection>
</subSubSection>
</treatment>
</document>