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<document id="3A0AEC59A9F64ADF2763868AD57B5179" ID="10.11646/zootaxa.4192.1.1" ID-DOI="10.11646/zootaxa.4192.1.1" ID-GBIF-Dataset="724e0dd4-6194-4e3a-bb22-e5259cb0a130" ID-ISSN="1175-5326" ID-Zenodo-Dep="166420" ID-ZooBank="B3AE1A8B-EE40-4ACF-879B-33B55FBD1FB8" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1479108624376" checkinUser="plazi" docAuthor="Zeidler, Wolfgang" docDate="2016" docId="4A6415141838FFF0FF5EF974FDF2F8BF" docLanguage="en" docName="zootaxa.4192.1.1.pdf" docOrigin="Zootaxa 4192 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Parascelidae Bovallius 1887" docType="treatment" docVersion="11" lastPageNumber="116" masterDocId="B65D6D6C184AFF83FFC9FFFCFF89FFF2" masterDocTitle="A review of the families and genera of the superfamily PLATYSCELOIDEA Bowman &amp; Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea), together with keys to the families, genera and species" masterLastPageNumber="136" masterPageNumber="1" pageNumber="115" updateTime="1698393370911" updateUser="plazi">
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<mods:title id="596152F0267D99A4A669A0C96C4CCA69">A review of the families and genera of the superfamily PLATYSCELOIDEA Bowman &amp; Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea), together with keys to the families, genera and species</mods:title>
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<mods:date id="E4F08180BBEAA93587B9EAF6572B8A01">2016</mods:date>
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<treatment id="4A6415141838FFF0FF5EF974FDF2F8BF" ID-DOI="http://doi.org/10.5281/zenodo.6069361" ID-GBIF-Taxon="124691938" ID-Zenodo-Dep="6069361" LSID="urn:lsid:plazi:treatment:4A6415141838FFF0FF5EF974FDF2F8BF" httpUri="http://treatment.plazi.org/id/4A6415141838FFF0FF5EF974FDF2F8BF" lastPageId="115" lastPageNumber="116" pageId="114" pageNumber="115">
<subSubSection id="8AD7F7891838FFF1FF5EF974FD29F950" box="[151,672,1672,1698]" pageId="114" pageNumber="115" type="nomenclature">
<paragraph id="C272A4021838FFF1FF5EF974FD29F950" blockId="114.[151,672,1672,1698]" box="[151,672,1672,1698]" pageId="114" pageNumber="115">
<heading id="993A136E1838FFF1FF5EF974FD29F950" bold="true" box="[151,672,1672,1698]" fontSize="11" level="1" pageId="114" pageNumber="115" reason="1">
<emphasis id="F0B978101838FFF1FF5EF974FD29F950" bold="true" box="[151,672,1672,1698]" pageId="114" pageNumber="115">
Family
<taxonomicName id="05CDDF811838FFF1FF3FF974FD29F950" ID-CoL="7NKBX" authority="Bovallius, 1887" authorityName="Bovallius" authorityYear="1887" box="[246,672,1672,1698]" class="Malacostraca" family="Parascelidae" kingdom="Animalia" order="Amphipoda" pageId="114" pageNumber="115" phylum="Arthropoda" rank="family">
PARASCELIDAE
<bibRefCitation id="A65CD9F31838FFF1FE2BF974FD29F950" author="Bovallius" box="[482,672,1672,1698]" pageId="114" pageNumber="115" refString="Bovallius, C. (1887) Systematical list of the Amphipoda Hyperiidea. Bihang till Kungliga Vetenskaps-Akademiens Handlingar, 11 (16), 1 - 50." type="journal article" year="1887">Bovallius, 1887</bibRefCitation>
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="8AD7F7891838FFF0FF5EF932FA07FD5A" lastPageId="115" lastPageNumber="116" pageId="114" pageNumber="115" type="diagnosis">
<paragraph id="C272A4021838FFF0FF5EF932FD93FD77" blockId="114.[151,1437,1742,2019]" lastBlockId="115.[151,1437,151,1869]" lastPageId="115" lastPageNumber="116" pageId="114" pageNumber="115">
<emphasis id="F0B978101838FFF1FF5EF932FE98F915" bold="true" box="[151,273,1742,1767]" pageId="114" pageNumber="115">Diagnosis.</emphasis>
Body length
<quantity id="053509E71838FFF1FE72F932FDA8F914" box="[443,545,1742,1767]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" metricValueMax="7.0" metricValueMin="5.0" pageId="114" pageNumber="115" unit="mm" value="6.0" valueMax="7.0" valueMin="5.0">5–7 mm</quantity>
, rolled into ball, the enlarged basis of P5 &amp; 6 completely covering other pereopoda, with telson fitting neatly into telsonic groove of basis of P6, slightly flattened dorso-ventrally. Head relatively short, with ‘beak’ between first antennae, fitting neatly between distal margins of basis of P6 when rolled up. Eyes in single, or double group, occupying most of head surface (except
<taxonomicName id="05CDDF811838FFF1FBCAF8C6FBEEF8A1" box="[1027,1127,1850,1875]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="114" pageNumber="115" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101838FFF1FBCAF8C6FBEEF8A1" box="[1027,1127,1850,1875]" italics="true" pageId="114" pageNumber="115">Euscelus</emphasis>
</taxonomicName>
). Coxae 1–6 separate from pereonites; coxa 7 almost totally fused with pereonite, with slight posterior notch between coxa and pereonite. Antennae 1 of females with 2–3 articulate peduncle, first flagellar article (callynophore) not particularly larger than peduncular articles, with two smaller articles inserted terminally. Antennae 1 of males with 1–2 articulate peduncle, and enlarged, curved first flagellar article (callynophore), with two-field brush of aesthetascs medially, and three smaller, slender articles inserted on antero-distal corner. Antennae 2 of females often reduced in size consisting of 3–5 slender articles. Antennae 2 of males with five slender articles folded back on one another underneath head and pereon, basal article the shortest, and slightly more robust than following articles, articles 2 &amp; 3 sub-equal in length, the fourth is slightly shorter, and the fifth is slightly shorter than the fourth. Mouthparts styliform, forming buccal mass in shape of pointed cone. Mandibles with palp in males, absent in females, with narrow incisor. Maxillae 1 reduced to very small lobes, with oblique distal margin armed with few robust setae, or several in four groups. Maxillae 2 absent, or reduced to very small lobes, slightly curved with rounded bulge medially, with minute denticles on rounded distal surface. Gnathopoda simple or chelate. Pereopods 5 &amp; 6 with basis transformed into broad operculum, always longer and larger in P6; distal articles inserted sub-terminally on basis of P5, more proximally in P6. Pereopod 6, basis with, or without, fissure, postero-distal corner with ridge-groove locking mechanism with opposing P6, distal margin with groove to lock with opposing P6, posterior margin with telsonic groove. Pereopod 7 reduced in size but with full complement of articles. Uropods 2 &amp; 3; endopod sometimes fused with peduncle. Telson triangular, relatively broad, fused with double urosomite. Gills without folds on pereonites 2–6. Oostegites on pereonites 2–5.
</paragraph>
<paragraph id="C272A4021839FFF0FF0EFD73FA07FD5A" blockId="115.[151,1437,151,1869]" box="[199,1422,655,680]" pageId="115" pageNumber="116">
<emphasis id="F0B978101839FFF0FF0EFD73FEAFFD5A" bold="true" box="[199,294,655,680]" pageId="115" pageNumber="116">Genera.</emphasis>
<taxonomicName id="05CDDF811839FFF0FEE4FD73FDB0FD5A" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" box="[301,569,655,680]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FEE4FD73FE20FD5A" box="[301,425,655,680]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FE78FD73FDB0FD5A" author="Claus" box="[433,569,655,680]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="05CDDF811839FFF0FD8CFD73FCB3FD5A" authority="Dana, 1852" authorityName="Dana" authorityYear="1852" box="[581,826,655,680]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FD8CFD73FD27FD5A" box="[581,686,655,680]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FD7CFD6CFCB3FD5A" author="Dana" box="[693,826,655,680]" pageId="115" pageNumber="116" refString="Dana, J. D. (1852) On the classification of the Crustacea Choristopoda or Tetradecapoda. American Journal of Sciences and Arts, series 2, 14 (41), 297 - 316." type="journal article" year="1852">Dana, 1852</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="05CDDF811839FFF0FC8CFD73FBBCFD5A" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" box="[837,1077,655,680]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FC8CFD73FC20FD5A" box="[837,937,655,680]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FC66FD73FBBCFD5A" author="Claus" box="[943,1077,655,680]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FBA5FD73FA00FD5A" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" box="[1132,1417,655,680]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FBA5FD73FB73FD5A" box="[1132,1274,655,680]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FAC9FD73FA00FD5A" author="Claus" box="[1280,1417,655,680]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="8AD7F7891839FFF0FF0EFD48FDF2F8BF" pageId="115" pageNumber="116" type="discussion">
<paragraph id="C272A4021839FFF0FF0EFD48FBB1FCE6" blockId="115.[151,1437,151,1869]" pageId="115" pageNumber="116">
<emphasis id="F0B978101839FFF0FF0EFD48FEB2FD3F" bold="true" box="[199,315,692,717]" pageId="115" pageNumber="116">Remarks.</emphasis>
In the past this family has also been known as Scelidae
<bibRefCitation id="A65CD9F31839FFF0FC12FD48FBEDFD3E" author="Claus" box="[987,1124,692,717]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
(
<bibRefCitation id="A65CD9F31839FFF0FBBFFD48FAA8FD3E" author="Stebbing" box="[1142,1313,692,717]" pageId="115" pageNumber="116" refString="Stebbing, T. R. R. (1888) Report on the Amphipoda collected by H. M. S. ' Challenger' during the years 1873 - 1876. Report on the Scientific Results of the Voyage of H. M. S. ' Challenger' during the years 1873 - 76. Zoology, 29, i - xxiv &amp; 1 - 1737, plates 1 - 210." type="journal article" year="1888">Stebbing 1888</bibRefCitation>
,
<bibRefCitation id="A65CD9F31839FFF0FAE6FD48FF5BFD02" author="Chevreux" pageId="115" pageNumber="116" refString="Chevreux, E. (1900) Amphipodes provenant des campagnes de I'Hirondelle (1885 - 1888). Resultats des Campagnes scientifiques accomplies sur son Yacht, par Albert 1 er, Prince Souverain de Monaco, 16 (i - iv), 1 - 195, plates 1 - 18." type="journal article" year="1900">Chevreux 1900</bibRefCitation>
,
<bibRefCitation id="A65CD9F31839FFF0FF14FD2BFE60FD02" author="Chevreux" box="[221,489,727,752]" pageId="115" pageNumber="116" refString="Chevreux, E. &amp; Fage, L. (1925) Amphipodes. Faune de France, 9, 488 pp., 438 text Figs" type="book" year="1925">Chevreux &amp; Fage 1925</bibRefCitation>
,
<bibRefCitation id="A65CD9F31839FFF0FE3CFD2BFD0FFD02" author="Hurley" box="[501,646,727,752]" pageId="115" pageNumber="116" refString="Hurley, D. E. (1955) Pelagic amphipods of the sub-order Hyperiidea in New Zealand waters. I. Systematics. Transactions of the Royal Society of New Zealand, 83 (1), 119 - 194." type="journal article" year="1955">Hurley 1955</bibRefCitation>
). However, there never was a genus
<emphasis id="F0B978101839FFF0FBEDFD2BFBE5FD02" box="[1060,1132,727,752]" italics="true" pageId="115" pageNumber="116">Scelus</emphasis>
and we must therefore use
<taxonomicName id="05CDDF811839FFF0FF5EFD00FEAFFCE7" box="[151,294,764,789]" class="Malacostraca" family="Parascelidae" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="family">Parascelidae</taxonomicName>
, derived from the genus
<taxonomicName id="05CDDF811839FFF0FDF2FD00FD3EFCE7" box="[571,695,764,789]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FDF2FD00FD3EFCE7" box="[571,695,764,789]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
</taxonomicName>
, as proposed by
<bibRefCitation id="A65CD9F31839FFF0FCBDFD00FBBDFCE6" author="Bovallius" box="[884,1076,764,789]" pageId="115" pageNumber="116" refString="Bovallius, C. (1887) Systematical list of the Amphipoda Hyperiidea. Bihang till Kungliga Vetenskaps-Akademiens Handlingar, 11 (16), 1 - 50." type="journal article" year="1887">Bovallius (1887)</bibRefCitation>
.
</paragraph>
<paragraph id="C272A4021839FFF0FF0EFCE3FE1BFC57" blockId="115.[151,1437,151,1869]" pageId="115" pageNumber="116">
<bibRefCitation id="A65CD9F31839FFF0FF0EFCE3FEFAFCCA" author="Barnard" box="[199,371,799,824]" pageId="115" pageNumber="116" refString="Barnard, K. H. (1930) Crustacea. Part X 1: Amphipoda. British Antarctic (Terra Nova) Expedition 1910, Zoology, 8 (4), 307 - 454." type="journal article" year="1930">Barnard (1930)</bibRefCitation>
proposed the name Thyropidae for this family believing that the family name must be derived from the oldest genus,
<taxonomicName id="05CDDF811839FFF0FE50FCB8FD01FCAF" authority="Dana 1852" authorityName="Dana" authorityYear="1852" box="[409,648,836,861]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE50FCB8FD8BFCAF" box="[409,514,836,861]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FDC3FCB9FD01FCAF" author="Dana" box="[522,648,836,861]" pageId="115" pageNumber="116" refString="Dana, J. D. (1852) On the classification of the Crustacea Choristopoda or Tetradecapoda. American Journal of Sciences and Arts, series 2, 14 (41), 297 - 316." type="journal article" year="1852">Dana 1852</bibRefCitation>
</taxonomicName>
. However, according to the ICZN the oldest generic name in a family need not be taken as the nomenclatural type (
<emphasis id="F0B978101839FFF0FD59FC94FD65FC8D" box="[656,748,872,895]" italics="true" pageId="115" pageNumber="116">Opinion</emphasis>
141, ICZN 1950, 4: 138). Barnard’s suggested substitution is therefore unnecessary.
</paragraph>
<paragraph id="C272A4021839FFF0FF0EFC53FC33FBAA" blockId="115.[151,1437,151,1869]" pageId="115" pageNumber="116">
This family is very similar to the previous one, as already discussed under that family.
<bibRefCitation id="A65CD9F31839FFF0FB67FC4CFF68FC1E" author="Bowman" pageId="115" pageNumber="116" refString="Bowman, T. E. &amp; Gruner, H. - E. (1973) The families and genera of Hyperiidea (Crustacea: Amphipoda). Smithsonian Contributions to Zoology, No. 146, 1 - 64. http: // dx. doi. org / 10.5479 / si. 00810282.146" type="book chapter" year="1973">Bowman and Gruner (1973)</bibRefCitation>
recognise three genera,
<taxonomicName id="05CDDF811839FFF0FDD8FC28FC9BFC1E" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" box="[529,786,980,1005]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FDD8FC28FDFCFC1F" box="[529,629,980,1005]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FD4AFC28FC9BFC1E" author="Claus" box="[643,786,980,1005]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="05CDDF811839FFF0FCEFFC28FBC6FC1E" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" box="[806,1103,980,1005]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FCEFFC28FC3AFC1F" box="[806,947,980,1005]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FC0BFC28FBC6FC1E" author="Claus" box="[962,1103,980,1005]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FB5CFC28FA10FC1F" authority="Dana, 1852" authorityName="Dana" authorityYear="1852" box="[1173,1433,980,1005]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB5CFC28FB77FC1F" box="[1173,1278,980,1005]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FAC5FC29FA10FC1F" author="Dana" box="[1292,1433,980,1005]" pageId="115" pageNumber="116" refString="Dana, J. D. (1852) On the classification of the Crustacea Choristopoda or Tetradecapoda. American Journal of Sciences and Arts, series 2, 14 (41), 297 - 316." type="journal article" year="1852">Dana, 1852</bibRefCitation>
</taxonomicName>
.
<bibRefCitation id="A65CD9F31839FFF0FF5EFC0BFE39FBE2" box="[151,432,1015,1040]" pageId="115" pageNumber="116" refString="Vinogradov, M. E., Volkov, A. F. &amp; Semenova, T. N. (1982) Amfipody-Giperiidy (Amphipoda: Hyperiidea) Mirovogo Okeanea. Akademiya Nauk SSSR, Opredeliteli po Faune SSSR No. 132. Leningrad, 492 pp. [In Russian, English translation, 1996, Smithsonian Institution Libraries, Washington D. C., D. Siegel-Causey, Scientific Editor]." type="book">
Vinogradov
<emphasis id="F0B978101839FFF0FEEAFC05FEDFFBE2" box="[291,342,1015,1040]" italics="true" pageId="115" pageNumber="116">et al</emphasis>
. (1982)
</bibRefCitation>
also recognise these genera but make a case for removing
<taxonomicName id="05CDDF811839FFF0FB98FC0BFAD4FBE2" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" box="[1105,1373,1015,1040]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB98FC0BFB44FBE2" box="[1105,1229,1015,1040]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FB1FFC0BFAD4FBE2" author="Claus" box="[1238,1373,1015,1040]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
</taxonomicName>
from the synonymy of
<taxonomicName id="05CDDF811839FFF0FE96FBE0FE41FBC7" box="[351,456,1052,1077]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE96FBE0FE41FBC7" box="[351,456,1052,1077]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
</taxonomicName>
. They also include
<taxonomicName id="05CDDF811839FFF0FD63FBE0FC5AFBC6" authority="Stewart, 1913" authorityName="Stewart" authorityYear="1913" box="[682,979,1052,1077]" class="Malacostraca" family="Parascelidae" genus="Hemiscelus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FD63FBE0FCA2FBC7" box="[682,811,1052,1077]" italics="true" pageId="115" pageNumber="116">Hemiscelus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FCFDFBE0FC5AFBC6" author="Stewart" box="[820,979,1052,1076]" pageId="115" pageNumber="116" refString="Stewart, D. A. (1913) A report on the extra-Antarctic Amphipoda Hyperiidea collected by the ' Discovery'. Annals and Magazine of Natural History, 8 (12), 245 - 264, plates 4 - 7." type="journal article" year="1913">Stewart, 1913</bibRefCitation>
</taxonomicName>
, the type species of which is regarded a juvenile form of
<taxonomicName id="05CDDF811839FFF0FE9DFBC3FC80FBAA" box="[340,777,1087,1112]" class="Malacostraca" family="Platyscelidae" genus="Hemityphis" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="species" species="tenuimanus">
<emphasis id="F0B978101839FFF0FE9DFBC3FDD2FBAA" box="[340,603,1087,1112]" italics="true" pageId="115" pageNumber="116">Hemityphis tenuimanus</emphasis>
(Platyscelidae)
</taxonomicName>
(
<bibRefCitation id="A65CD9F31839FFF0FCDEFBC3FC24FBAA" author="Zeidler" box="[791,941,1087,1112]" pageId="115" pageNumber="116" refString="Zeidler, W. (1998) Pelagic amphipods (Crustacea: Amphipoda: Hyperiidea) collected from eastern and south-eastern Australian waters by the C. S. I. R. O. research vessel ' Warreen' during the years 1938 - 41. Records of the South Australian Museum. Monograph Series, No. 4, 1 - 143." type="book chapter" year="1998">Zeidler 1998</bibRefCitation>
).
</paragraph>
<paragraph id="C272A4021839FFF0FF0EFB98FAF1FB1A" blockId="115.[151,1437,151,1869]" pageId="115" pageNumber="116">
<bibRefCitation id="A65CD9F31839FFF0FF0EFB98FE2DFB8E" author="Vinogradov" box="[199,420,1124,1149]" pageId="115" pageNumber="116" refString="Vinogradov, G. M. (1990) Pelagic amphipods (Amphipoda, Crustacea) from the south-eastern Pacific. Transactions of the P. P. Shirshov Institute of Oceanology, 124, 27 - 104. [In Russian]." type="journal article" year="1990">Vinogradov (1990)</bibRefCitation>
described a new species of
<taxonomicName id="05CDDF811839FFF0FCC1FB98FC00FB8F" box="[776,905,1124,1149]" class="Malacostraca" family="Parascelidae" genus="Hemiscelus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FCC1FB98FC00FB8F" box="[776,905,1124,1149]" italics="true" pageId="115" pageNumber="116">Hemiscelus</emphasis>
</taxonomicName>
,
<taxonomicName id="05CDDF811839FFF0FC57FB99FB90FB8E" box="[926,1049,1125,1148]" class="Malacostraca" family="Parascelidae" genus="Hemiscelus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="species" species="setosus">
<emphasis id="F0B978101839FFF0FC57FB99FB90FB8E" box="[926,1049,1125,1148]" italics="true" pageId="115" pageNumber="116">H. setosus</emphasis>
</taxonomicName>
, from the south-eastern Pacific. Unfortunately it has not been possible to borrow any specimens of this species and so it is not possible to verify the taxonomic status. Judging by Vinogradov’s description and figures, it seems to be a species of
<taxonomicName id="05CDDF811839FFF0FB0BFB50FACBFB37" box="[1218,1346,1196,1221]" class="Malacostraca" family="Platyscelidae" genus="Platyscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB0BFB50FACBFB37" box="[1218,1346,1196,1221]" italics="true" pageId="115" pageNumber="116">Platyscelus</emphasis>
</taxonomicName>
, near
<taxonomicName id="05CDDF811839FFF0FA4EFB51FE3CFB1A" authority="Claus, 1879" authorityName="Claus" authorityYear="1879" class="Malacostraca" family="Platyscelidae" genus="Platyscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="species" species="crustulatus">
<emphasis id="F0B978101839FFF0FA4EFB51FE9DFB1A" italics="true" pageId="115" pageNumber="116">P. crustulatus</emphasis>
(
<bibRefCitation id="A65CD9F31839FFF0FEEBFB33FE24FB1A" author="Claus" box="[290,429,1231,1256]" pageId="115" pageNumber="116" refString="Claus, C. (1879) Die Gattungen und Arten der Platysceliden in Systematischer Ubersicht. Arbeiten aus dem Zoologischen Institut der Universitat zu Wien und der Zoologischen Station Triest, 2, 1 - 52 (147 - 198)." type="journal article" year="1879">Claus, 1879</bibRefCitation>
)
</taxonomicName>
, or
<taxonomicName id="05CDDF811839FFF0FE16FB2DFC96FB1A" authority="Stebbing, 1888" authorityName="Stebbing" authorityYear="1888" box="[479,799,1231,1256]" class="Malacostraca" family="Platyscelidae" genus="Platyscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="species" species="serratulus">
<emphasis id="F0B978101839FFF0FE16FB2DFDE5FB1A" box="[479,620,1231,1256]" italics="true" pageId="115" pageNumber="116">P. serratulus</emphasis>
<bibRefCitation id="A65CD9F31839FFF0FDBAFB33FC96FB1A" author="Stebbing" box="[627,799,1231,1256]" pageId="115" pageNumber="116" refString="Stebbing, T. R. R. (1888) Report on the Amphipoda collected by H. M. S. ' Challenger' during the years 1873 - 1876. Report on the Scientific Results of the Voyage of H. M. S. ' Challenger' during the years 1873 - 76. Zoology, 29, i - xxiv &amp; 1 - 1737, plates 1 - 210." type="journal article" year="1888">Stebbing, 1888</bibRefCitation>
</taxonomicName>
. Thus, only four genera are recognised in this review.
</paragraph>
<paragraph id="C272A4021839FFF0FF0EFB08FC4DF9A2" blockId="115.[151,1437,151,1869]" pageId="115" pageNumber="116">
The four genera of
<taxonomicName id="05CDDF811839FFF0FE75FB08FDC1FAFF" box="[444,584,1268,1293]" class="Malacostraca" family="Parascelidae" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="family">Parascelidae</taxonomicName>
are quite diverse in their morphology but fall into two main groups,
<taxonomicName id="05CDDF811839FFF0FF5EFAEBFE9AFAC2" box="[151,275,1303,1328]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FF5EFAEBFE9AFAC2" box="[151,275,1303,1328]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
</taxonomicName>
with
<taxonomicName id="05CDDF811839FFF0FE9BFAEBFE32FAC2" box="[338,443,1303,1328]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE9BFAEBFE32FAC2" box="[338,443,1303,1328]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FE39FAEBFDF4FAC2" box="[496,637,1303,1328]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE39FAEBFDF4FAC2" box="[496,637,1303,1328]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
</taxonomicName>
with
<taxonomicName id="05CDDF811839FFF0FD75FAEBFCA9FAC2" box="[700,800,1303,1328]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FD75FAEBFCA9FAC2" box="[700,800,1303,1328]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
</taxonomicName>
.
<taxonomicName id="05CDDF811839FFF0FCE5FAEBFC21FAC2" box="[812,936,1303,1328]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FCE5FAEBFC21FAC2" box="[812,936,1303,1328]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FC17FAEBFBCEFAC2" box="[990,1095,1303,1328]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FC17FAEBFBCEFAC2" box="[990,1095,1303,1328]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
</taxonomicName>
share the following characters that differ from
<taxonomicName id="05CDDF811839FFF0FE83FAC0FE5EFAA7" box="[330,471,1340,1365]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE83FAC0FE5EFAA7" box="[330,471,1340,1365]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FDC7FAC0FDFBFAA7" box="[526,626,1340,1365]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FDC7FAC0FDFBFAA7" box="[526,626,1340,1365]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
</taxonomicName>
. The gnathopoda are simple; the antennae of females are linear, the first consisting of six articles and the second of five articles; the first maxillae are armed with teeth, or groups of robust setae, and the second maxillae consist of a slightly curved lobe with a rounded medial bulge. In
<taxonomicName id="05CDDF811839FFF0FB17FA78FAE2FA6F" box="[1246,1387,1412,1437]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB17FA78FAE2FA6F" box="[1246,1387,1412,1437]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FF5EFA5BFF72FA32" box="[151,251,1447,1472]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FF5EFA5BFF72FA32" box="[151,251,1447,1472]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
</taxonomicName>
the second gnathopoda are chelate (also gnathopod
<quantity id="053509E71839FFF0FC88FA54FCE5FA32" box="[833,876,1447,1472]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="115" pageNumber="116" unit="in" value="1.0">1 in</quantity>
<taxonomicName id="05CDDF811839FFF0FCBBFA5BFC5FFA32" box="[882,982,1447,1472]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FCBBFA5BFC5FFA32" box="[882,982,1447,1472]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
</taxonomicName>
); the first antennae of females consist of five articles, with the terminal two articles reduced in size, and inserted dorsally on the medial corner of the callynophore; the second antennae of females are reduced and consist of only three or four articles; the first maxillae are only armed with a few setae, and the second maxillae are absent or not discernible. This grouping of these genera is also well supported by the phylogenetic analysis (Fig. 2).
</paragraph>
<paragraph id="C272A4021839FFF0FF0EF9A0FDF2F8BF" blockId="115.[151,1437,151,1869]" pageId="115" pageNumber="116">
The above grouping of genera might lead one to suggest that the family should be split into two, but there are other characters shared by different combinations of genera. The first antennae of males have a two-articulate peduncle in
<taxonomicName id="05CDDF811839FFF0FEECF958FE2BF94F" box="[293,418,1700,1725]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FEECF958FE2BF94F" box="[293,418,1700,1725]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FE14F958FDE3F94F" box="[477,618,1700,1725]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE14F958FDE3F94F" box="[477,618,1700,1725]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
</taxonomicName>
, and a one-articulate peduncle in
<taxonomicName id="05CDDF811839FFF0FC3CF958FBD7F94F" box="[1013,1118,1700,1725]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FC3CF958FBD7F94F" box="[1013,1118,1700,1725]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FB53F958FB77F94F" box="[1178,1278,1700,1725]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB53F958FB77F94F" box="[1178,1278,1700,1725]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
</taxonomicName>
. The basis of pereopod 6 has a fissure in
<taxonomicName id="05CDDF811839FFF0FE02F93BFDBDF912" box="[459,564,1735,1760]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FE02F93BFDBDF912" box="[459,564,1735,1760]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FDA2F93BFD71F912" box="[619,760,1735,1760]" class="Malacostraca" family="Parascelidae" genus="Schizoscelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FDA2F93BFD71F912" box="[619,760,1735,1760]" italics="true" pageId="115" pageNumber="116">Schizoscelus</emphasis>
</taxonomicName>
, which is absent in
<taxonomicName id="05CDDF811839FFF0FC10F93BFBDCF912" box="[985,1109,1735,1760]" class="Malacostraca" family="Parascelidae" genus="Parascelus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FC10F93BFBDCF912" box="[985,1109,1735,1760]" italics="true" pageId="115" pageNumber="116">Parascelus</emphasis>
</taxonomicName>
and
<taxonomicName id="05CDDF811839FFF0FB44F93BFB78F912" box="[1165,1265,1735,1760]" class="Insecta" family="Attelabidae" genus="Euscelus" kingdom="Animalia" order="Coleoptera" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB44F93BFB78F912" box="[1165,1265,1735,1760]" italics="true" pageId="115" pageNumber="116">Euscelus</emphasis>
</taxonomicName>
.
<taxonomicName id="05CDDF811839FFF0FB36F93BFAE1F912" box="[1279,1384,1735,1760]" class="Malacostraca" family="Parascelidae" genus="Thyropus" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="genus">
<emphasis id="F0B978101839FFF0FB36F93BFAE1F912" box="[1279,1384,1735,1760]" italics="true" pageId="115" pageNumber="116">Thyropus</emphasis>
</taxonomicName>
also differs from the other genera in having eyes grouped into two fields on either side of the head, and in having a less elongate maxilliped, with the inner lobe split distally. Thus, the phylogeny of genera of the family
<taxonomicName id="05CDDF811839FFF0FB3FF8F3FA0BF8DA" box="[1270,1410,1807,1832]" class="Malacostraca" family="Parascelidae" kingdom="Animalia" order="Amphipoda" pageId="115" pageNumber="116" phylum="Arthropoda" rank="family">Parascelidae</taxonomicName>
is not clear and requires further investigation.
</paragraph>
</subSubSection>
</treatment>
</document>
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