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<document id="E081E22ED9F1968B029FA9E1CF039605" ID-CLB-Dataset="20600" ID-DOI="10.1080/00222933.2021.2008542" ID-GBIF-Dataset="b6d9068b-d3c3-40f7-9ca1-b79940072254" ID-ISSN="1464-5262" ID-Zenodo-Dep="6127624" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1645084129160" checkinUser="plazi" docAuthor="Vigneshwaran, P., Ravichandrana, S. &amp; Kumar Ajith ,, T. T." docDate="2022" docId="03DF5711FFEBFFF511B5FB7474C6B510" docLanguage="en" docName="JNATHIST.55.45-46.2909-2934.pdf" docOrigin="Journal of Natural History 55 (45 - 46)" docStyle="DocumentStyle:3C762F9783B768A90048B82ACD135A62.3:JNatHist.2017-.journal_article.0cover" docStyleId="3C762F9783B768A90048B82ACD135A62" docStyleName="JNatHist.2017-.journal_article.0cover" docStyleVersion="3" docTitle="Cymothooidea Leach 1814" docType="treatment" docVersion="10" lastPageNumber="2913" masterDocId="FFE62F69FFE9FFF11115FFAB7045B60A" masterDocTitle="Redescription of the monotypic micro-predatory isopod genera Alitropus H. Milne Edwards, 1840 and Barybrotes Schioedte &amp; Meinert, 1879 (Isopoda, Cymothoida), with a taxonomic key to the Cymothooidea Leach, 1814 from India" masterLastPageNumber="2934" masterPageNumber="2909" pageNumber="2911" updateTime="1699314157606" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="38833A9D195291E796A20517DB3536EC">Redescription of the monotypic micro-predatory isopod genera Alitropus H. Milne Edwards, 1840 and Barybrotes Schioedte &amp; Meinert, 1879 (Isopoda, Cymothoida), with a taxonomic key to the Cymothooidea Leach, 1814 from India</mods:title>
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<mods:namePart id="8B9621699AF2084B0C4822F54AE0A5B9">Vigneshwaran, P.</mods:namePart>
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<mods:namePart id="8D12C18B22DB6FA1AC0AAA44B7440DA6">Ravichandrana, S.</mods:namePart>
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<mods:namePart id="7414C5347D5097F897FB140520A9A835">Kumar Ajith ,, T. T.</mods:namePart>
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<mods:title id="BEF7F6C899DBFAB7D4E801F836465EA8">Journal of Natural History</mods:title>
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<mods:date id="267DCAC82A73B6D1DE2C05DBBD551C9F">2022</mods:date>
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<treatment id="03DF5711FFEBFFF511B5FB7474C6B510" ID-DOI="http://doi.org/10.5281/zenodo.6313646" ID-GBIF-Taxon="193400992" ID-Zenodo-Dep="6313646" LSID="urn:lsid:plazi:treatment:03DF5711FFEBFFF511B5FB7474C6B510" httpUri="http://treatment.plazi.org/id/03DF5711FFEBFFF511B5FB7474C6B510" lastPageId="4" lastPageNumber="2913" pageId="2" pageNumber="2911">
<subSubSection id="C36CB58CFFEBFFF311B5FB7472DCB2F2" box="[160,665,1247,1272]" pageId="2" pageNumber="2911" type="nomenclature">
<paragraph id="8BC9E607FFEBFFF311B5FB7472DCB2F2" blockId="2.[160,665,1247,1272]" box="[160,665,1247,1272]" pageId="2" pageNumber="2911">
<emphasis id="B9023A15FFEBFFF311B5FB7472DCB2F2" bold="true" box="[160,665,1247,1272]" pageId="2" pageNumber="2911">
Superfamily
<taxonomicName id="4C769D84FFEBFFF3102DFB7472DCB2F2" authority="Leach, 1814" authorityName="Leach" authorityYear="1814" box="[312,665,1247,1272]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="2" pageNumber="2911" phylum="Arthropoda" rank="superFamily" superFamily="Cymothooidea">CYMOTHOOIDEA Leach, 1814</taxonomicName>
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C36CB58CFFEBFFF211B5FA8271EEB5ED" lastPageId="3" lastPageNumber="2912" pageId="2" pageNumber="2911" type="discussion">
<paragraph id="8BC9E607FFEBFFF311B5FA8273FCB052" blockId="2.[160,1157,1321,1728]" pageId="2" pageNumber="2911">
<emphasis id="B9023A15FFEBFFF311B5FA82714AB349" bold="true" box="[160,271,1321,1347]" pageId="2" pageNumber="2911">Remarks.</emphasis>
Members of this superfamily differ from other isopods in several respects.
<taxonomicName id="4C769D84FFEBFFF311B5FAE67100B36C" authorityName="Leach" authorityYear="1814" box="[160,325,1357,1382]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="2" pageNumber="2912" phylum="Arthropoda" rank="superFamily" superFamily="Cymothooidea">Cymothooidea</taxonomicName>
have a pleon; pleonite 1 has suture lines indicating fusion of other somites. Mouthparts are of a reduced form; mandibles stout, lacinia mobilis and molar process well developed, palp has three articles; maxilliped palp has five articles. Uropods lateral, exopod free and movable, endopod firmly attached to the peduncle, immovable. Sexual dimorphism not pronounced, except in
<taxonomicName id="4C769D84FFEBFFF313D5FA7C737FB3FA" authorityName="Leach" authorityYear="1814" box="[704,826,1495,1520]" class="Malacostraca" family="Gnathiidae" kingdom="Animalia" order="Isopoda" pageId="2" pageNumber="2911" phylum="Arthropoda" rank="family">Gnathiidae</taxonomicName>
and
<taxonomicName id="4C769D84FFEBFFF3126DFA7C7454B3FA" authorityName="Leach" authorityYear="1818" box="[888,1041,1495,1520]" class="Malacostraca" family="Cymothoidae" kingdom="Animalia" order="Isopoda" pageId="2" pageNumber="2911" phylum="Arthropoda" rank="family">Cymothoidae</taxonomicName>
. Unlike in other isopods, the fertilised eggs are deposited in an internal brood pouch. Another difference is the presence of a tubular channel on the ventral side of the pleotelson, probably for the passage of respiratory current from the pleonal vault.
</paragraph>
<paragraph id="8BC9E607FFEBFFF211D5F9C9712AB790" blockId="2.[160,1157,1321,1728]" lastBlockId="3.[160,1157,142,999]" lastPageId="3" lastPageNumber="2912" pageId="2" pageNumber="2911">
Cymothooids are best defined by the absence of the extreme mouthpart modifications and reductions seen in the anthuroids, bopyroids and cryptoniscoids; rather, they are most similar to the Cirolanoidea (
<bibRefCitation id="EFE79BF6FFEBFFF31353F90C728FB0CA" author="Poore" box="[582,714,1703,1728]" firstAuthor="Poore" pageId="2" pageNumber="2911" refId="ref10460" refString="Poore GCB. 2002. Crustacea: Malacostraca: Syncarida: Peracarida: Isopoda, Tanaidacea, Mictacea, Thermosbaenacea, Spelaeogriphacea. In: Zoological catalogue of Australia. Vol. 19.2 A. Melbourne: CSIRO Publishing; 434 pp." type="book" year="2002">Poore 2002</bibRefCitation>
). The most plesiomorphic members of most families possess an elongate maxilliped endite, not reduced or absent as seen in Cirolanoidea. The cirolanoids are immediately separated from cymothooids by their broad tridentate mandibular incisor, generally unreduced mouthparts, and the maxillule being multi-articulate and not possessing spines. The parasitic cymothooideans include the cymothoids, tridentellids and gnathiids (
<bibRefCitation id="EFE79BF6FFEAFFF2138EFEB2730BB738" author="Smit" box="[667,846,281,306]" etAl="et al." firstAuthor="Smit" pageId="3" pageNumber="2912" pagination="188 - 197" refId="ref10778" refString="Smit NJ, Bruce NL, Hadfield KA. 2014. Global diversity of fish parasitic isopod of the family Cymothoidae. Int J Parasitol Parasites Wildl. 3: 188 - 197. doi: 10.1016 / j. ijppaw. 2014.03.004." type="journal article" year="2014">Smit et al. 2014</bibRefCitation>
;
<bibRefCitation id="EFE79BF6FFEAFFF2124EFEB273AFB738" author="Wetzer" box="[859,1002,281,306]" firstAuthor="Wetzer" pageId="3" pageNumber="2912" pagination="1 - 14" refId="ref11059" refString="Wetzer R. 2015. Collecting and preserving marine and freshwater Isopoda (Crustacea: Peracarida). Biodivers Data J. 3: 1 - 14. doi: 10.3897 / BDJ. 3. e 4912." type="journal article" year="2015">Wetzer 2015</bibRefCitation>
). As the level of parasitism increases, setae are fewer (particularly the pereopods and mouthparts), mouthparts develop abrading serrate scales and body segments are smoother (Poore and Bruce 20121).
</paragraph>
<paragraph id="8BC9E607FFEAFFF211D5FE0F71F8B460" blockId="3.[160,1157,142,999]" pageId="3" pageNumber="2912">
The
<taxonomicName id="4C769D84FFEAFFF211ECFE0F71E4B7B7" authorityName="Leach" authorityYear="1814" box="[249,417,420,445]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="superFamily" superFamily="Cymothooidea">Cymothooidea</taxonomicName>
is the largest superfamily of the suborder
<taxonomicName id="4C769D84FFEAFFF212ABFE0F740FB7B7" authorityName="Wagele" authorityYear="1989" box="[958,1098,420,445]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="subOrder" subOrder="Cymothoida">Cymothoida</taxonomicName>
and includes members that are primarily littoral or shallow benthic. However, many species from deeper waters are also recorded. Freshwater, cave-dwelling and hotspring species are also known. The 1047 species of
<emphasis id="B9023A15FFEAFFF21228FDA773A3B42F" box="[829,998,524,549]" pageId="3" pageNumber="2912">cymothooidan</emphasis>
isopods are grouped in about 139 genera and eight families, of which six families are represented in Indian waters.
</paragraph>
<paragraph id="8BC9E607FFEAFFF211D5FDDF71EEB5ED" blockId="3.[160,1157,142,999]" pageId="3" pageNumber="2912">
The seven families included in
<taxonomicName id="4C769D84FFEAFFF21354FDDF72ACB487" authorityName="Leach" authorityYear="1814" box="[577,745,628,653]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="superFamily" superFamily="Cymothooidea">Cymothooidea</taxonomicName>
according to the classification of
<bibRefCitation id="EFE79BF6FFEAFFF211B5FD3D719DB4A5" author="Brandt and Poore" box="[160,472,662,687]" firstAuthor="Brandt" pageId="3" pageNumber="2912" pagination="893 - 923" refId="ref9675" refString="Brandt A, Poore GCB. 2003. Higher classification of the flabelliferan and related Isopoda based on a reappraisal of relationships. Invertebr Syst. 17: 893 - 923. doi: 10.1071 / IS 02032." type="journal article" year="2003">Brandt and Poore (2003)</bibRefCitation>
are
<taxonomicName id="4C769D84FFEAFFF21308FD3D735EB4A5" authority="White 1850" authorityName="White" authorityYear="1850" box="[541,795,662,687]" class="Malacostraca" family="Aegidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">
Aegidae
<bibRefCitation id="EFE79BF6FFEAFFF21398FD3D735EB4A5" author="White" box="[653,795,662,687]" firstAuthor="White" pageId="3" pageNumber="2912" refId="ref11098" refString="White A. 1850. List of the specimens of British animals in the collection of the British Museum. Part IV. - Crustacea. London: British Museum." type="book" year="1850">White 1850</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C769D84FFEAFFF21224FD3D743BB4A5" authority="Stebbing 1893" authorityName="Stebbing" authorityYear="1893" box="[817,1150,662,687]" class="Malacostraca" family="Anuropidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">
Anuropidae
<bibRefCitation id="EFE79BF6FFEAFFF212DFFD3D743BB4A5" author="Stebbing" box="[970,1150,662,687]" firstAuthor="Stebbing" pageId="3" pageNumber="2912" refId="ref10822" refString="Stebbing TRR. 1893. A history of Crustacea. Recent Malacostraca. New York: Appleton and Company; p. 466. doi: 10.5962 / bhl. title. 53964." type="journal volume" year="1893">Stebbing 1893</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C769D84FFEAFFF211B4FD1271AEB4D8" authority=", Hansen 1890" authorityName=", Hansen" authorityYear="1890" box="[161,491,697,722]" class="Malacostraca" family="Corallanidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">
Corallanidae,
<bibRefCitation id="EFE79BF6FFEAFFF2105FFD1271AEB4D8" author="Hansen" box="[330,491,697,722]" firstAuthor="Hansen" pageId="3" pageNumber="2912" pagination="237 - 426" refId="ref9962" refString="Hansen HJ. 1890. Cirolanidae et familiae nonnulae propinquae Musei Hauniensis. Det Kongelige Danske Videnskabernes Selskab Skrifter. Naturvidenskabelige og Mathematisk. 6 (3): 237 - 426." type="journal article" year="1890">Hansen 1890</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C769D84FFEAFFF21314FD127303B4D8" authority="Leach, 1818" authorityName="Leach" authorityYear="1818" box="[513,838,697,722]" class="Malacostraca" family="Cymothoidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Cymothoidae Leach, 1818</taxonomicName>
;
<taxonomicName id="4C769D84FFEAFFF2124CFD1274C4B4D8" authority="Leach, 1814" authorityName="Leach" authorityYear="1814" box="[857,1153,697,722]" class="Malacostraca" family="Gnathiidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Gnathiidae Leach, 1814</taxonomicName>
;
<taxonomicName id="4C769D84FFEAFFF211B4FD77720FB4FF" authority="Wagele and Brandt" authorityName="Wagele and Brandt" box="[161,586,732,757]" class="Malacostraca" family="Protognathiidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Protognathiidae Wägele and Brandt</taxonomicName>
; 1988 and
<taxonomicName id="4C769D84FFEAFFF213C4FD777440B4FF" authority="Bruce, 1984" authorityName="Bruce" authorityYear="1984" box="[721,1029,732,757]" class="Malacostraca" family="Tridentellidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Tridentellidae Bruce, 1984</taxonomicName>
. The additional family
<taxonomicName id="4C769D84FFEAFFF2102BFD557231B51D" authority="Hansen 1890" authorityName="Hansen" authorityYear="1890" box="[318,628,766,791]" class="Malacostraca" family="Barybrotidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">
Barybrotidae
<bibRefCitation id="EFE79BF6FFEAFFF210CEFD557231B51D" author="Hansen" box="[475,628,766,791]" firstAuthor="Hansen" pageId="3" pageNumber="2912" pagination="237 - 426" refId="ref9962" refString="Hansen HJ. 1890. Cirolanidae et familiae nonnulae propinquae Musei Hauniensis. Det Kongelige Danske Videnskabernes Selskab Skrifter. Naturvidenskabelige og Mathematisk. 6 (3): 237 - 426." type="journal article" year="1890">Hansen 1890</bibRefCitation>
</taxonomicName>
were re-validated by
<bibRefCitation id="EFE79BF6FFEAFFF2126BFD557457B51D" author="Bruce" box="[894,1042,766,791]" firstAuthor="Bruce" pageId="3" pageNumber="2912" pagination="1 - 252" refId="ref9753" refString="Bruce NL. 2009. The marine fauna of New Zealand: Isopoda, Aegidae (Crustacea). NIWA Biodivers Mem New Zealand. 122: 1 - 252. https: // pdfs. semanticscholar. org / 76 d 5 / cf 22 a 65067238 c 28761 c 95 cda 06 bddb 82996. pdf." type="journal article" year="2009">Bruce (2009)</bibRefCitation>
. The two nonparasitic families are the
<taxonomicName id="4C769D84FFEAFFF210ECFC8A72F7B530" box="[505,690,801,826]" class="Malacostraca" family="Protognathiidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Protognathiidae</taxonomicName>
and
<taxonomicName id="4C769D84FFEAFFF213E6FC8A7339B530" authorityName="Stebbing" authorityYear="1893" box="[755,892,801,826]" class="Malacostraca" family="Anuropidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Anuropidae</taxonomicName>
; the other six families show progressive development towards parasitism. The protognathiids (two species in the genus
<taxonomicName id="4C769D84FFEAFFF2105AFCCD71A6B575" authorityName="Wagele &amp; Brandt" authorityYear="1988" box="[335,483,870,895]" class="Malacostraca" family="Protognathiidae" genus="Protognathia" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="genus">
<emphasis id="B9023A15FFEAFFF2105AFCCD71A6B575" box="[335,483,870,895]" italics="true" pageId="3" pageNumber="2912">Protognathia</emphasis>
</taxonomicName>
) are mesopelagic species found in the Antarctic and Southern Oceans (
<bibRefCitation id="EFE79BF6FFEAFFF21062FC2272DEB5A8" author="W a gele JW &amp; Brandt A" box="[375,667,905,930]" journalOrPublisher="Polar Biol" pageId="3" pageNumber="2912" pagination="77 - 92" part="7" refId="ref11129" refString="W a gele JW, Brandt A. 1988. Description of the postembryonal stages of the Antarctic fish parasite Gnathia calva Vanhoffen (Crustacea, Isopoda) and synonymy with Heterognathia Amar &amp; Roman. Polar Biol. 7: 77 - 92" title="Description of the postembryonal stages of the Antarctic fish parasite Gnathia calva Vanhoffen (Crustacea, Isopoda) and synonymy with Heterognathia Amar &amp; Roman" type="journal article" year="1988">
W
<emphasis id="B9023A15FFEAFFF21085FC2271D9B5AA" bold="true" box="[400,412,905,928]" pageId="3" pageNumber="2912">ӓ</emphasis>
gele and Brandt 1988
</bibRefCitation>
). The anuropids (10 species in the single genus
<taxonomicName id="4C769D84FFEAFFF211E6FC077118B5CF" authorityName="Beddard" authorityYear="1886" box="[243,349,940,965]" class="Malacostraca" family="Anuropidae" genus="Anuropus" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="genus">
<emphasis id="B9023A15FFEAFFF211E6FC077118B5CF" box="[243,349,940,965]" italics="true" pageId="3" pageNumber="2912">Anuropus</emphasis>
</taxonomicName>
) are bathypelagic species found in the Caribbean and the Pacific Ocean (
<bibRefCitation id="EFE79BF6FFEAFFF211ECFC6571DBB5ED" author="Beddard" box="[249,414,974,999]" firstAuthor="Beddard" pageId="3" pageNumber="2912" pagination="1 - 175" refId="ref9561" refString="Beddard, F. E 1886 Report on the Isopoda. Report of the Scientific Results of theVoyage of H. M. S. &quot; Challenger &quot; during the Years 1873 - 1876 18 1 - 175." type="journal article" year="1886">Beddard 1886</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C36CB58CFFEAFFF211B5FBBF73BEB227" box="[160,1019,1044,1069]" pageId="3" pageNumber="2912" type="key">
<paragraph id="8BC9E607FFEAFFF211B5FBBF73BEB227" blockId="3.[160,1019,1044,1069]" box="[160,1019,1044,1069]" pageId="3" pageNumber="2912">
<emphasis id="B9023A15FFEAFFF211B5FBBF73BEB227" bold="true" box="[160,1019,1044,1069]" pageId="3" pageNumber="2912">
Key to the families of the superfamily
<taxonomicName id="4C769D84FFEAFFF21378FBBF7358B227" authorityName="Leach" authorityYear="1814" box="[621,797,1044,1069]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="superFamily" superFamily="Cymothooidea">Cymothooidea</taxonomicName>
known from
<collectingCountry id="F361A697FFEAFFF212ABFBBF73BEB227" box="[958,1019,1044,1069]" name="India" pageId="3" pageNumber="2912">India</collectingCountry>
</emphasis>
</paragraph>
</subSubSection>
<subSubSection id="C36CB58CFFEAFFF211B5FBF272FEB29F" pageId="3" pageNumber="2912" type="discussion">
<paragraph id="8BC9E607FFEAFFF211B5FBF272FEB29F" blockId="3.[160,1156,1113,1173]" pageId="3" pageNumber="2912">
The families
<taxonomicName id="4C769D84FFEAFFF21025FBF271F1B278" authorityName="Stebbing" authorityYear="1893" box="[304,436,1113,1138]" class="Malacostraca" family="Anuropidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Anuropidae</taxonomicName>
and
<taxonomicName id="4C769D84FFEAFFF210E5FBF272E0B278" box="[496,677,1113,1138]" class="Malacostraca" family="Protognathiidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Protognathiidae</taxonomicName>
have not been reported in Indian waters. Thus, these families are not included in the key.
</paragraph>
</subSubSection>
<subSubSection id="C36CB58CFFEAFFF511B5FB1574C6B510" lastPageId="4" lastPageNumber="2913" pageId="3" pageNumber="2912" type="key">
<key id="FFE7B136FFEAFFF511B5FB1574C6B510" lastPageId="4" lastPageNumber="2913" pageId="3" pageNumber="2912">
<keyStep id="3082FEA2FFEAFFF211B5FB1574C6B368" pageId="3" pageNumber="2912">
<paragraph id="8BC9E607FFEAFFF211B5FB1574C6B317" blockId="3.[160,1156,1214,1378]" pageId="3" pageNumber="2912">
<keyLead id="30874532FFEAFFF211B5FB1574C6B317" pageId="3" pageNumber="2912">
1. Mandibles of males grossly enlarged and extended beyond the front of cephalon; adult females without mandibles; pereonite 1 fused to the cephalon................................ ...........................................................................................................................
<taxonomicName id="4C769D84FFEAFFF21269FAAF74C6B317" ID-CoL="7NHPG" authority="Leach, 1814" authorityName="Leach" authorityYear="1814" box="[892,1155,1284,1309]" class="Malacostraca" family="Gnathiidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Gnathiidae Leach, 1814</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BC9E607FFEAFFF211B5FA8D74C6B368" blockId="3.[160,1156,1214,1378]" pageId="3" pageNumber="2912">
<keyLead id="30874532FFEAFFF211B5FA8D74C6B368" pageId="3" pageNumber="2912"> Mandibles not as above; in both sexes the mandibles well developed; cephalon deeply immersed into pereonite 1................................................................................................................................2</keyLead>
</paragraph>
</keyStep>
<keyStep id="3082FEA2FFEAFFF211B5FAD574C6B06D" pageId="3" pageNumber="2912">
<paragraph id="8BC9E607FFEAFFF211B5FAD574C6B3D7" blockId="3.[160,1155,1406,1639]" pageId="3" pageNumber="2912">
<keyLead id="30874532FFEAFFF211B5FAD574C6B3D7" pageId="3" pageNumber="2912">2. Maxilliped lacking, or with very reduced, endite; mandible with lacinia and molar process greatly reduced, vestigial or absent; mandibular incisor narrow; maxillule lateral (outer) lobe simple and falcate; maxilla reduced......................................................... 3</keyLead>
</paragraph>
<paragraph id="8BC9E607FFEAFFF211B5FA4D74C6B06D" blockId="3.[160,1155,1406,1639]" pageId="3" pageNumber="2912">
<keyLead id="30874532FFEAFFF211B5FA4D74C6B06D" pageId="3" pageNumber="2912">
Maxilliped with elongate endite; mandible with distinct lacinia and large, bladelike molar process; mandibular incisor generally broad, three-dentate; maxillule lateral (outer) lobe often with several (1014) stout pines, never stylet-like or falcate; maxilla well developed.......................................................................................
<taxonomicName id="4C769D84FFEAFFF2124AF9E574C6B06D" ID-CoL="7NLDY" authority="Bruce, 1984" authorityName="Bruce" authorityYear="1984" box="[863,1155,1614,1639]" class="Malacostraca" family="Tridentellidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="2912" phylum="Arthropoda" rank="family">Tridentellidae Bruce, 1984</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
<keyStep id="3082FEA2FFEDFFF511B5FF2574C6B790" pageId="4" pageNumber="2913">
<paragraph id="8BC9E607FFEDFFF511B5FF2574C6B705" blockId="4.[160,1156,142,410]" pageId="4" pageNumber="2913">
<keyLead id="30874532FFEDFFF511B5FF2574C6B705" pageId="4" pageNumber="2913">
3. Maxilliped lacking distal recurved hooks; mouthparts not forming a ventrally directed cone; maxilliped without stout, curved setae; mandible with or without lacinia and molar process; maxilla not a slender stylet; pereopods 13 ambulatory or at most weakly prehensile .................................................................................
<taxonomicName id="4C769D84FFEDFFF5124BFF5D74C6B705" ID-CoL="7NGXH" authority="Hansen 1890" authorityName=", Hansen" authorityYear="1890" box="[862,1155,246,271]" class="Malacostraca" family="Corallanidae" kingdom="Animalia" order="Isopoda" pageId="4" pageNumber="2913" phylum="Arthropoda" rank="family">
Corallanidae
<bibRefCitation id="EFE79BF6FFEDFFF512E4FF5D74C6B705" author="Hansen" box="[1009,1155,246,271]" firstAuthor="Hansen" pageId="4" pageNumber="2913" pagination="237 - 426" refId="ref9962" refString="Hansen HJ. 1890. Cirolanidae et familiae nonnulae propinquae Musei Hauniensis. Det Kongelige Danske Videnskabernes Selskab Skrifter. Naturvidenskabelige og Mathematisk. 6 (3): 237 - 426." type="journal article" year="1890">Hansen 1890</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BC9E607FFEDFFF511B5FEB274C6B790" blockId="4.[160,1156,142,410]" pageId="4" pageNumber="2913">
<keyLead id="30874532FFEDFFF511B5FEB274C6B790" pageId="4" pageNumber="2913"> Maxilliped bearing distal recurved hooks; mouthparts forming a ventrally directed cone; maxilliped and maxillule and maxillae with stout, curved, apical setae; lacinia and molar process of mandible reduced or absent; maxilla reduced to a single slender stylet; pereopods 13 strongly prehensile.................................................................................... 4</keyLead>
</paragraph>
</keyStep>
<keyStep id="3082FEA2FFEDFFF511B5FE1D74C6B476" pageId="4" pageNumber="2913">
<paragraph id="8BC9E607FFEDFFF511B5FE1D74C6B41E" blockId="4.[160,1156,438,636]" pageId="4" pageNumber="2913">
<keyLead id="30874532FFEDFFF511B5FE1D74C6B41E" pageId="4" pageNumber="2913">4. Pereopods 47 prehensile, with dactylus longer than propodus; antennae reduced, without a clear distinction between peduncle and flagellum; maxilliped palp twoarticulate; obligate parasites of fishes ............................................................................................ 5</keyLead>
</paragraph>
<paragraph id="8BC9E607FFEDFFF511B5FDB574C6B476" blockId="4.[160,1156,438,636]" pageId="4" pageNumber="2913">
<keyLead id="30874532FFEDFFF511B5FDB574C6B476" pageId="4" pageNumber="2913">
Pereopods 47 ambulatory, with dactylus shorter than propodus; antennae not as above, with clear distinction between peduncle and flagellum; maxilliped palp of 25 articles; micro-predators of fishes ..............................................................
<taxonomicName id="4C769D84FFEDFFF512B5FDC874C6B476" ID-CoL="7NFTV" authority="White 1850" authorityName="White" authorityYear="1850" box="[928,1155,611,636]" class="Malacostraca" family="Aegidae" kingdom="Animalia" order="Isopoda" pageId="4" pageNumber="2913" phylum="Arthropoda" rank="family">
Aegidae
<bibRefCitation id="EFE79BF6FFEDFFF51516FDC874C6B476" author="White" box="[1027,1155,611,636]" firstAuthor="White" pageId="4" pageNumber="2913" refId="ref11098" refString="White A. 1850. List of the specimens of British animals in the collection of the British Museum. Part IV. - Crustacea. London: British Museum." type="book" year="1850">White 1850</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
<keyStep id="3082FEA2FFEDFFF511B5FD3274C6B510" pageId="4" pageNumber="2913">
<paragraph id="8BC9E607FFEDFFF511B5FD3274C6B4DE" blockId="4.[160,1155,665,794]" pageId="4" pageNumber="2913">
<keyLead id="30874532FFEDFFF511B5FD3274C6B4DE" pageId="4" pageNumber="2913">
5. Body mostly asymmetrical; coxal plates well developed, produced; pleopods, telson and uropods lack marginal setae...................................................
<taxonomicName id="4C769D84FFEDFFF51275FD1074C6B4DE" ID-CoL="7NH43" authority="Leach, 1818" authorityName="Leach" authorityYear="1818" box="[864,1155,699,724]" class="Malacostraca" family="Cymothoidae" kingdom="Animalia" order="Isopoda" pageId="4" pageNumber="2913" phylum="Arthropoda" rank="family">Cymothoidae Leach, 1818</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BC9E607FFEDFFF511B5FD7574C6B510" blockId="4.[160,1155,665,794]" pageId="4" pageNumber="2913">
<keyLead id="30874532FFEDFFF511B5FD7574C6B510" pageId="4" pageNumber="2913">
Body symmetrical; coxal plates developed, though not produced; pleopods, pleotelson and uropods marginally setose ............................................
<taxonomicName id="4C769D84FFEDFFF5124FFCAA74C6B510" ID-CoL="7NHHJ" authority="Hansen 1890" authorityName="Hansen" authorityYear="1890" box="[858,1155,769,794]" class="Malacostraca" family="Barybrotidae" kingdom="Animalia" order="Isopoda" pageId="4" pageNumber="2913" phylum="Arthropoda" rank="family">
Barybrotidae
<bibRefCitation id="EFE79BF6FFEDFFF512E4FCAA74C6B510" author="Hansen" box="[1009,1155,769,794]" firstAuthor="Hansen" pageId="4" pageNumber="2913" pagination="237 - 426" refId="ref9962" refString="Hansen HJ. 1890. Cirolanidae et familiae nonnulae propinquae Musei Hauniensis. Det Kongelige Danske Videnskabernes Selskab Skrifter. Naturvidenskabelige og Mathematisk. 6 (3): 237 - 426." type="journal article" year="1890">Hansen 1890</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
</key>
</subSubSection>
</treatment>
</document>