290 lines
38 KiB
XML
290 lines
38 KiB
XML
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<mods:title id="D62DAACBD8769E770C96E0FC24DEE8A1">A collection of crabs (Crustacea, Brachyura) from the southwestern coast of India, with a discussion of the systematic position of Nectopanope Wood-Mason in Wood-Mason & Alcock, 1891 (Euryplacidae)</mods:title>
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<mods:namePart id="CB8D847EF66B35E3EB144082F731B20A">Ng, Peter K. L.</mods:namePart>
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<mods:namePart id="918453E8897B942089DC9523AD381365">Priyaja, P.</mods:namePart>
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<mods:namePart id="A4DCC7014E08CB5A8D668A53B163E211">Kumar, A. Biju</mods:namePart>
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<mods:namePart id="5FA7C6EBEC1A4B0D50EDDBCB91E4C971">Devi, S. Suvarna</mods:namePart>
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<mods:date id="CAF30F3F75A12936CD6763B4EE95FE2F">2019</mods:date>
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<mods:number id="ABD3CBC31AC707186B26CDCCABC41E35">818</mods:number>
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<mods:url id="31C877820B0795AE677312E63FEA67DA">http://dx.doi.org/10.3897/zookeys.818.32108</mods:url>
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<mods:classification id="D609677CA357EBA02C9A496C4647377F">journal article</mods:classification>
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<mods:identifier id="5762FF86D9DAAEC645ED72C37FFA85C7" type="DOI">http://dx.doi.org/10.3897/zookeys.818.32108</mods:identifier>
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<treatment id="76F733F59593E0B2E628F0A360CBD632" ID-GBIF-Taxon="154126656" LSID="urn:lsid:plazi:treatment:76F733F59593E0B2E628F0A360CBD632" httpUri="http://treatment.plazi.org/id/76F733F59593E0B2E628F0A360CBD632" lastPageId="6" lastPageNumber="6" pageId="3" pageNumber="4">
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<subSubSection id="33A9D638382EDE61472888DAEBDEC851" pageId="3" pageNumber="4" type="nomenclature">
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<paragraph id="4658FCFB180C5994F8E44EA5307D370D" pageId="3" pageNumber="4">
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<taxonomicName id="4238DBB082EBA2F031703831554A497C" ID-CoL="7PPTY" authority="Wood-Mason in Wood-Mason & Alcock, 1891" authorityName="Wood-Mason in Wood-Mason & Alcock" authorityYear="1891" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Nectopanope Wood-Mason in Wood-Mason & Alcock, 1891</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="BBD042DB51A9E09E9F6C2436DBCB2DC5" pageId="3" pageNumber="4" type="reference_group">
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<paragraph id="D3A7B4CB517225FC59F995F8EBDC9EE0" pageId="3" pageNumber="4">
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<taxonomicName id="EFC29B94889D073152823A1B5ECFBBCE" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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Anonymous, 1891: 56 (nomen nudum).
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</paragraph>
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<paragraph id="584DC6B57821262DFAEFD990DA022E45" pageId="3" pageNumber="4">
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<taxonomicName id="6D4C24559B0CAC09BA91DB8A129D294C" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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Wood-Mason in Wood in Wood-Mason & Alcock, 1891: 261.
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</paragraph>
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</subSubSection>
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<subSubSection id="71D001696C903DFA26E9587A8ADC9D06" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4" type="diagnosis">
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<paragraph id="83CB9A850A2E71E9E13045D0E8BC270D" pageId="3" pageNumber="4">Diagnosis.</paragraph>
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<paragraph id="85F993943A941BF9DF1D202A88462B3C" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4">
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Carapace (Fig. 3A, B) subhexagonal, wider than long, dorsal surface smooth, regions poorly indicated; front (Fig. 3
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<normalizedToken id="ECA3BB6685A062A1A0F264609FCDD66E" originalValue="C–E">C-E</normalizedToken>
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) wide, straight with small median notch, with transverse sulcus along margin. Anterolateral borders (Fig. 3A, B) convex; with two low teeth posterior to broadly triangular outer orbital angle, first tooth wider than acute second tooth. Orbits (Fig. 3
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<normalizedToken id="99D876640B904BA564FEC410F1E53D13" originalValue="C–E">C-E</normalizedToken>
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) wide, spherical, deep; supraorbital margin with submedian notch, small acute lobe before notch with front; low suborbital tooth on broad, suborbital border; eye peduncles short, stout, with large subreniform (dorsoventrally flattened) cornea (Fig. 36D, E). Basal antennal article mobile, completely closing orbital
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<pageBreakToken id="402E274FE67112F199A9B8938598130C" pageId="4" pageNumber="5" start="start">hiatus</pageBreakToken>
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(Fig. 3D). Ischium of third maxilliped (Fig. 3B) elongate; anteroexternal margin of merus auriculiform. Cheliped fingers (Figs 3A, G, 4E, F) stout, as long as propodus, not pigmented; carpus with small, sharp spine on inner margin, merus with acute anterodorsal tooth. Dorsal margins of ambulatory legs (P2-P5) (Figs 3A, 4
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<normalizedToken id="7475517635E2DA9BF55C42E9778A69B3" originalValue="G–J">G-J</normalizedToken>
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) meri, carpi, propodi unarmed, dactyli slender, smooth, setose; P5 propodus, dactylus proportionally short, flattened, fringed with many short setae. Thoracic sternum (Fig. 4A, D) relatively wide; sternites 1, 2 completely fused; suture 2/3 complete, gently convex towards buccal cavity; sternites 3, 4 medially fused, with shallow median groove, almost indiscernible with only lateral notch distinct; sutures 4/5, 6/7, 7/8 medially interrupted, 5/6 complete; median groove on thoracic sternites 7, 8. Male sternopleonal cavity (Fig. 4A, D) deep, reaching median part of sternite 4, just before sternite 3. Press-button of male pleonal-locking mechanism (Fig. 4D) present as low tubercle on sternite 5, near thoracic suture 4/5. Male pleon (Fig. 4
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<normalizedToken id="F80A76629B945E7ACE111682EDE14D5C" originalValue="A–C">A-C</normalizedToken>
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) narrow, slender, T-shaped, lateral margins of somites 4-6 abruptly narrowing from somite 3 to transversely narrow, acutely triangular telson (Fig. 4B); somite 3 wide, reaching inner margins of P5 coxae; no part of thoracic sternite 8 exposed by closed pleon, somite 2 transversely shorter than somite 3, somite 1 (Fig. 4C) conspicuous, narrow. G1 (Fig. 7
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<normalizedToken id="360659BC69FCE796E5DE29368597BBE0" originalValue="A–D">A-D</normalizedToken>
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) long, slender, almost straight; distal quarter distinctly chitinised; apex sharp, distal third with numerous sharp denticles. G2 (Fig. 7E) less than one-third G1 length, relatively straight, apex spatuliform. Male genital opening (gonopore) coxal; penis long. Female characters not known.
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</paragraph>
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</subSubSection>
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<subSubSection id="38A0F84843EB88EBD170F97E9CD50BD5" lastPageId="6" lastPageNumber="7" pageId="4" pageNumber="5" type="remarks">
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<paragraph id="CD92FDDC2C7A925712C7F076DF9074BC" pageId="4" pageNumber="5">Remarks.</paragraph>
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<paragraph id="4017C0DBD21CB503AB77DC0AD215D116" pageId="4" pageNumber="5">
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The type species of
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<taxonomicName id="410060FE74F28825C318D706B198685C" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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has been somewhat confused. Only one species,
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<taxonomicName id="847C502685E3B3199B620B9ED44D4058" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope longipes" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="longipes">Nectopanope longipes</taxonomicName>
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, was recognised in
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<bibRefCitation id="1FA129AB1B258312F590C6878001DDF6" pageId="4" pageNumber="5">Anonymous (1891</bibRefCitation>
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: 56) but both these names are nomina nuda. Wood-Mason (in
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<bibRefCitation id="8F2F42E65BB7732D7205AE497F3D1D8B" pageId="4" pageNumber="5">Wood-Mason and Alcock 1891</bibRefCitation>
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: 261, 262) provided valid descriptions for the genus and species, and included
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<taxonomicName id="489971145DFAD4DA2CEDC47731CDCE1C" lsidName="N. rhodobaphes" pageId="4" pageNumber="5" rank="species" species="rhodobaphes">N. rhodobaphes</taxonomicName>
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as a second species.
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<bibRefCitation id="845F4BF6EDF93B2C594C4E94DF65E8E3" author="Ng, PKL" journalOrPublisher="Raffles Bulletin of Zoology, Supplement" pageId="14" pageNumber="15" pagination="1 - 286" title="Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world." volume="17" year="2008">Ng et al. (2008</bibRefCitation>
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: 80) noted that the type species of
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<taxonomicName id="7AE499B4C7BE0270DC782A57A9A7DCD5" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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was
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<taxonomicName id="C02C603F5B23F880176226BAA9DD341E" lsidName="N. rhodobaphes" pageId="4" pageNumber="5" rank="species" species="rhodobaphes">N. rhodobaphes</taxonomicName>
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by monotypy, but this is not correct. Although Wood-Mason (in
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<bibRefCitation id="6C95F15E2787CC27F95DBDAE03222B98" pageId="4" pageNumber="5">Wood-Mason and Alcock 1891</bibRefCitation>
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) did not explicitly state which was the type species for
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<taxonomicName id="C0D494BB868581A97AB081C02CE2F7E0" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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Wood-Mason in Wood-Mason & Alcock, 1891, they wrote "
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<taxonomicName id="3FAC897DAA367439EB246FDE311A6980" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope rhodobaphes" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="rhodobaphes">Nectopanope rhodobaphes</taxonomicName>
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, gen. et sp. n., Wood-Mason" (Wood-Mason in
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<bibRefCitation id="14016809D10EBC1A60105892D380FDF4" pageId="4" pageNumber="5">Wood-Mason and Alcock 1891</bibRefCitation>
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: 261). Under Article 68.2.1 of the Code (
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<bibRefCitation id="01054C07AD25EE7EE8D8533973A13DF9" author="Huys, R" journalOrPublisher="International Trust for Zoological Nomenclature, in association with the British Museum (Natural History), London" pageId="14" pageNumber="15" title="International Code of Zoological Nomenclature. International Commission of Zoological Nomenclature. Fourth Edition. Adopted by the XXI General Assembly of the International Union of Biological Sciences." year="1999">ICZN 1999</bibRefCitation>
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), this is sufficient to recognise it as the type species of the genus (see
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<bibRefCitation id="67F246B74EFB83A1929BB6DE628CFE51" author="Huys, R" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 78" title="On two reports associated with James Wood-Mason and Alfred William Alcock published by the Indian Museum and the Indian Marine Survey between 1890 and 1891: implications for malacostracan nomenclature." url="https://doi.org/10.11646/zootaxa.3757.1.1" volume="3757" year="2014">Huys et al. 2014</bibRefCitation>
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: 27). Alcock (1898: 213) later commented that
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<taxonomicName id="AB256960FA3AF265D0A01EBC35FF366E" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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should be restricted to
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<taxonomicName id="97F2B241DFCC4D2F876ECE6A411E91D1" lsidName="N. rhodobaphes" pageId="4" pageNumber="5" rank="species" species="rhodobaphes">N. rhodobaphes</taxonomicName>
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and that "
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<taxonomicName id="39BA50A1081CFB3AFD0420FFEA76CF18" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope longipes" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="longipes">Nectopanope longipes</taxonomicName>
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, which was provisionally referred to this genus by Wood-Mason, who had insufficient material for examination, turns out, now that numerous good specimens have been dredged by the '
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<taxonomicName id="9D353797B0A8A7C963AC4A81CAB0FAEB" family="Nemichthyidae" genus="Investigator" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Investigator" order="Anguilliformes" pageId="4" pageNumber="5" phylum="Chordata" rank="genus">Investigator</taxonomicName>
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,' to be a Catometope belonging to the genus
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<taxonomicName id="61890484F61314E5B68A344B7A8C83A7" class="Malacostraca" family="Goneplacidae" genus="Carcinoplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Carcinoplax" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Carcinoplax</taxonomicName>
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."
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<bibRefCitation id="74240D57363190122FB5E23E108BF135" pageId="4" pageNumber="5">Alcock (1899a</bibRefCitation>
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: 64) repeated the same comments in his treatment of the deep-sea
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<taxonomicName id="80D1E81AABF5ED180DAED848704CC5A7" lsidName="Crustacea" pageId="4" pageNumber="5" rank="subPhylum" subPhylum="Crustacea">Crustacea</taxonomicName>
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of the Indian Seas.
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<taxonomicName id="D6B26AE5BD9FD0FAB728D3B127805C90" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope longipes" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="longipes">Nectopanope longipes</taxonomicName>
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Wood-Mason in Wood-Mason & Alcock, 1891, is now generally regarded as a valid species in
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<taxonomicName id="9427F74DCEC13DAE7011E2D5B2E06C29" class="Malacostraca" family="Goneplacidae" genus="Carcinoplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Carcinoplax" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Carcinoplax</taxonomicName>
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H. Milne Edwards, 1853 (
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<taxonomicName id="8F630D7A9E6CA60C9EF1C01D17520045" family="Goneplacidae" lsidName="" pageId="4" pageNumber="5" rank="family">Goneplacidae</taxonomicName>
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MacLeay, 1838) (see
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<bibRefCitation id="F24DB2975001DB9FA25BF12FEB34770B" author="Castro, P" journalOrPublisher="Zoosystema" pageId="14" pageNumber="15" pagination="609 - 773" title="A reappraisal of the family Goneplacidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and revision of the subfamily Goneplacinae, with the description of ten new genera and eighteen new species." volume="29" year="2007">Castro 2007</bibRefCitation>
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).
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</paragraph>
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<paragraph id="7F1AAD8B2E64CC55316296DDDA4DAC53" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5">
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<taxonomicName id="DA6837D7FF87F4DFE27A4EB5DFC07549" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
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Wood-Mason in Wood-Mason & Alcock, 1891, was originally placed in
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<taxonomicName id="4965D02927AFECA5A5FFB6607C3A3FC1" family="Cancridae" lsidName="" pageId="4" pageNumber="5" rank="family">Cancridae</taxonomicName>
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Latreille, 1802, by Wood-Mason (in
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<bibRefCitation id="E5E633C76CB4ACD86923CEBCA312AA17" pageId="4" pageNumber="5">Wood-Mason and Alcock 1891</bibRefCitation>
|
||
) with Alcock (1898,
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<bibRefCitation id="BDEB0D56B279CE8D99BF8D89E9608F0C" pageId="4" pageNumber="5">1899a</bibRefCitation>
|
||
) later transferring the genus to
|
||
<taxonomicName id="453D74C9803D5A23DDAA1BFD500166CA" family="Xanthidae" lsidName="" pageId="4" pageNumber="5" rank="family">Xanthidae</taxonomicName>
|
||
s. lato. Alcock (1898) recognized a new group in his xanthid subfamily
|
||
<taxonomicName id="3E3284BB9E3E60A513E6E5D60F32381F" lsidName="" pageId="4" pageNumber="5" rank="subFamily" subFamily="Pilumninae">Pilumninae</taxonomicName>
|
||
,
|
||
<taxonomicName id="3D8167BDF10961E9C2C227DCD58C672C" genus="Heteropanopioida" lsidName="Heteropanopioida" pageId="4" pageNumber="5" rank="genus">Heteropanopioida</taxonomicName>
|
||
<pageBreakToken id="C4C2EB2722DDC1A64CB46E49AD60821A" pageId="5" pageNumber="6" start="start">Alcock</pageBreakToken>
|
||
, 1898, in which he included
|
||
<taxonomicName id="B42C42F72B96625D343DBE62633BB62B" class="Malacostraca" family="Pilumnidae" genus="Heteropanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Heteropanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Heteropanope</taxonomicName>
|
||
Stimpson, 1858,
|
||
<taxonomicName id="FD91AFB73F38434CCE6ED7987C1E4D89" class="Malacostraca" family="Pilumnidae" genus="Eurycarcinus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eurycarcinus" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Eurycarcinus</taxonomicName>
|
||
A. Milne-Edwards, 1867, and
|
||
<taxonomicName id="6E34D7E02F57145A0A71E5AE29FDEBAF" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
.
|
||
<bibRefCitation id="27D7F4336907421D9BD66ADF1889436E" author="Ng, PKL" journalOrPublisher="Raffles Bulletin of Zoology, Supplement" pageId="14" pageNumber="15" pagination="1 - 286" title="Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world." volume="17" year="2008">Ng et al. (2008</bibRefCitation>
|
||
: 204) transferred
|
||
<taxonomicName id="7BA002DBCE6C9F5262F5F4F0E9B90E27" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
to
|
||
<taxonomicName id="957397266AAD78E2B3B228B2ECD4523E" lsidName="" pageId="5" pageNumber="6" rank="subFamily" subFamily="Xanthinae">Xanthinae</taxonomicName>
|
||
(
|
||
<taxonomicName id="01DCBA379CE8051CF96238B2CCBC98C7" family="Xanthidae" lsidName="" pageId="5" pageNumber="6" rank="family">Xanthidae</taxonomicName>
|
||
) without explanation. This was necessary as
|
||
<taxonomicName id="6B44B07727F4FD17AC8818F555FB111C" class="Malacostraca" family="Pilumnidae" genus="Heteropanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Heteropanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Heteropanope</taxonomicName>
|
||
and
|
||
<taxonomicName id="053A6F23C80360A885119B36455ECA67" class="Malacostraca" family="Pilumnidae" genus="Eurycarcinus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eurycarcinus" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Eurycarcinus</taxonomicName>
|
||
had already been moved to the
|
||
<taxonomicName id="F78EBB739E2A0222BC79C7C68D98423B" family="Pilumnidae" lsidName="" pageId="5" pageNumber="6" rank="family">Pilumnidae</taxonomicName>
|
||
(present
|
||
<taxonomicName id="37D71AEE326FECFACCB9A9ED9E12A043" genus="Pilumnoidea" lsidName="Pilumnoidea" pageId="5" pageNumber="6" rank="genus">Pilumnoidea</taxonomicName>
|
||
) by then (see
|
||
<bibRefCitation id="BDB4B3E459AD0F8CD805DD03D678BC85" author="Ng, PKL" journalOrPublisher="Crustaceana" pageId="14" pageNumber="15" pagination="471 - 487" title="A synopsis of the genus Eurycarcinus A. Milne-Edwards, 1867 (Decapoda, Brachyura, Pilumnidae)." url="https://doi.org/10.1163/15685403-00003775" volume="91" year="2018">Ng et al. 2018</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="33BB3C78402C0DF960D10943998A72B3" pageId="5" pageNumber="6">
|
||
The family position of
|
||
<taxonomicName id="3FEB0663521E916FC274C4DB4B18338C" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
is difficult because its only species,
|
||
<taxonomicName id="9ADB9B4B3BECFD053D219F0B40DCD376" lsidName="N. rhodobaphes" pageId="5" pageNumber="6" rank="species" species="rhodobaphes">N. rhodobaphes</taxonomicName>
|
||
, has previously only been known from one female specimen. Wood-Mason (in
|
||
<bibRefCitation id="D172697915D211AAF7F5FA62A2A045C0" pageId="5" pageNumber="6">Wood-Mason and Alcock 1891</bibRefCitation>
|
||
: 262) noted that he had "one specimen obtained at Station 96, 98 to 102 fathoms; the length of its carapace is 21.4 millim., and the greatest breadth between the points of the third teeth 29 millim." Station 96 was in the Bay of Bengal,
|
||
<geoCoordinate id="A61E153FF98D2CBF6FAC3355ABD1CBF4" direction="north" orientation="latitude" precision="925" value="18.5">18°30'N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="AC47BD5DE4AEB735035F780396776154" direction="east" orientation="longitude" precision="925" value="84.76667">84°46'E</geoCoordinate>
|
||
, substrate is sand at a depth of 98-102 fathoms, and dated 4 March 1890 (
|
||
<bibRefCitation id="A401B921C7111C73F768DE7298527606" pageId="5" pageNumber="6">Anonymous 1914</bibRefCitation>
|
||
). The sex of the specimen was not stated.
|
||
<bibRefCitation id="BFC02EB5A16B8B402612041578D8C0B0" pageId="5" pageNumber="6">Alcock (1899a</bibRefCitation>
|
||
: pl. 38 fig. 6) figured the specimen but it is not clear what its sex was (Fig. 2). Alcock (1898: 213; 1899a: 65) noted that they only had one female collected from the
|
||
<normalizedToken id="9ACB42410651F70DF1B72C0D3B310A18" originalValue="Godávari">Godavari</normalizedToken>
|
||
coast (in the Bay of Bengal) from 98-102 fathoms, that is the type. A search in the Zoological Survey of India in Calcutta for this specimen was not successful and it could not be located (S. Mitra, personal communication).
|
||
</paragraph>
|
||
<paragraph id="9C05E562E3F5760948A32A4736E2AD43" pageId="5" pageNumber="6">
|
||
The study of the present male specimen resolves the systematic position of
|
||
<taxonomicName id="2F71F1C17ED598217A89F65369AB7EEE" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
. The structures of the male pleon and gonopods leave no doubt that
|
||
<taxonomicName id="FC119EB9178CFD1A0408A0605E01BCDF" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
is in fact a member of
|
||
<taxonomicName id="85FCF0DBFD0C1212C8C9B011A7742E55" family="Euryplacidae" lsidName="" pageId="5" pageNumber="6" rank="family">Euryplacidae</taxonomicName>
|
||
Stimpson, 1871.
|
||
<taxonomicName id="482C243F8ECAC64A03B7FD2138B8FBD5" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
is only superficially resembles
|
||
<taxonomicName id="67F88067841102152A751402C9B8E886" class="Malacostraca" family="Pilumnidae" genus="Eurycarcinus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eurycarcinus" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Eurycarcinus</taxonomicName>
|
||
(and the
|
||
<taxonomicName id="4DD593D20EE8C9861C5E91B0B4BA5925" family="Pilumnidae" lsidName="" pageId="5" pageNumber="6" rank="family">Pilumnidae</taxonomicName>
|
||
) due to similar carapace features. Their male pleons and gonopods, however, are completely different (cf.
|
||
<bibRefCitation id="C71EA08E17F0A021FA87D07F0C80BBF4" author="Ng, PKL" journalOrPublisher="Crustaceana" pageId="14" pageNumber="15" pagination="471 - 487" title="A synopsis of the genus Eurycarcinus A. Milne-Edwards, 1867 (Decapoda, Brachyura, Pilumnidae)." url="https://doi.org/10.1163/15685403-00003775" volume="91" year="2018">Ng et al. 2018</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="4012D2FDE2D866D4B8DC4EF25E5A5D85" pageId="5" pageNumber="6">
|
||
In
|
||
<taxonomicName id="30CDB9C8134AAD9128C365F26B6CD1B2" family="Euryplacidae" lsidName="" pageId="5" pageNumber="6" rank="family">Euryplacidae</taxonomicName>
|
||
, the general shape and structure of the carapace as well as smoothness of the surfaces of
|
||
<taxonomicName id="2B461262EE762356F7A0F18CFB9F5785" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
most closely resembles
|
||
<taxonomicName id="5713FC7F9737637A7770BCA0381E91F5" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
Sakai, 1969 (with only one species, P.
|
||
<taxonomicName id="9AA81A1C9B746841F445AB23E6F238D5" genus="Pilumnoidea" lsidName="Pilumnoidea sanguineus" pageId="5" pageNumber="6" rank="species" species="sanguineus">sanguineus</taxonomicName>
|
||
Sakai, 1969), from the western Pacific. They also share a similar eye morphology. The eye of
|
||
<taxonomicName id="71243E9C621AECDD9AF8FD80CC4A443D" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
is large and is distinctly flattened dorsoventrally, with the structure appearing reniform (
|
||
<bibRefCitation id="C217815F7CFED71DC725636996A01A74" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 36B). The eye of
|
||
<taxonomicName id="08CF3BECEB6F784F1957B3FFC2085BF7" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
is relatively less distinctly flattened dorsoventrally and only weakly reniform in shape (Fig. 3D, E). No other euryplacids, however, have such a distinct eye structure which has been reported in other deep-sea brachyurans (e.g.,
|
||
<taxonomicName id="AE01B34F188AFD972EAB25092A42CA47" class="Malacostraca" family="Hexapodidae" genus="Hexaplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hexaplax" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Hexaplax</taxonomicName>
|
||
Doflein, 1904,
|
||
<taxonomicName id="DC8C3E4C7A9FF327958C799C561A7988" family="Hexapodidae" lsidName="" pageId="5" pageNumber="6" rank="family">Hexapodidae</taxonomicName>
|
||
; cf.
|
||
<bibRefCitation id="FF857ADD2275F1C5E68C3F867D8136FA" author="Rahayu, DL" journalOrPublisher="Raffles Bulletin of Zoology" pageId="14" pageNumber="15" pagination="396 - 483" title="New genera and new species of Hexapodidae (Crustacea, Brachyura) from the Indo-West Pacific and east Atlantic." volume="62" year="2014">Rahayu and Ng 2014</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="DF07FD8E92C7B366C0846115B6A14F1F" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6">
|
||
The carapace anterolateral margin of
|
||
<taxonomicName id="40BAE4E5D99264D6DB6FFAF1D2AC852F" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
has three distinct teeth (Figs 2, 3A, C) (with only two teeth in
|
||
<taxonomicName id="41F26648ED9FC9902EA9E6AF97B2CF81" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
, with the external orbital tooth very broad;
|
||
<bibRefCitation id="9F2C57F654CB6F2E63E3458DAD303E7F" author="Sakai, T" journalOrPublisher="Proceedings of the Biological Society of Washington" pageId="14" pageNumber="15" pagination="243 - 280" title="Two new genera and twenty-two new species of crabs from Japan." volume="82" year="1969">Sakai 1969</bibRefCitation>
|
||
: text-fig. 16b;
|
||
<bibRefCitation id="266D71E57E281678C7E191C17B1C2195" author="Sakai, T" journalOrPublisher="Kodansha Ltd., Tokyo (29): 773 pp. [English text]" pageId="14" pageNumber="15" title="Crabs of Japan and the Adjacent Seas. 3 Vols." year="1976">Sakai 1976</bibRefCitation>
|
||
: pl. 192, fig. 3). The external orbital tooth of
|
||
<taxonomicName id="B9E77403AB2C3821F97AC4A919EBAD67" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
, however, is usually partially medially indented, and although the cleft is not deep, it gives the appearance of having three teeth on the anterolateral margin (cf.
|
||
<bibRefCitation id="4D6038B68921DC4083036EBF0B734091" author="Sakai, T" journalOrPublisher="Proceedings of the Biological Society of Washington" pageId="14" pageNumber="15" pagination="243 - 280" title="Two new genera and twenty-two new species of crabs from Japan." volume="82" year="1969">Sakai 1969</bibRefCitation>
|
||
: text-figs 16b, 18b;
|
||
<bibRefCitation id="4B9454199D33D20268941903AC1EA1FE" author="Sakai, T" journalOrPublisher="Kodansha Ltd., Tokyo (29): 773 pp. [English text]" pageId="14" pageNumber="15" title="Crabs of Japan and the Adjacent Seas. 3 Vols." year="1976">Sakai 1976</bibRefCitation>
|
||
: text-fig. 282a;
|
||
<bibRefCitation id="4BD43C9AB2B42BFE2CCCB07CCFC01CE1" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 36A). The frontal margin in
|
||
<taxonomicName id="CFE4C5CCEAFABAE9AE80252FFF98770D" class="Malacostraca" family="Euryplacidae" genus="Nectopanope" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Nectopanope" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Nectopanope</taxonomicName>
|
||
is medially indented (Figs 2, 3A, C) (margin entire in
|
||
<taxonomicName id="F1D4B5839C7BA42CF00FC1774CF102A6" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
; cf.
|
||
<bibRefCitation id="B7343ED6454A93494AC83CDFBC664136" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 36A); the ischium of the third maxilliped is proportionately longer with the auriculiform anteroexternal angle of the merus more developed (Fig. 3B) (ischium of third maxilliped relatively shorter and the anterexternal angle of the merus less produced in
|
||
<taxonomicName id="9AF25277CB98557CDF39365DB5AD8A69" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
; cf.
|
||
<bibRefCitation id="3FD3507F27CDCBFFA6500BA8F2685406" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 36C); the cornea is weakly reniform (Fig. 3D, E) (cornea prominently reniform in
|
||
<taxonomicName id="FEB06F3C8AE7C3026534789A83C27D51" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
;
|
||
<pageBreakToken id="D1DEA2BF374D60AD505D15EF64B7FCF0" pageId="6" pageNumber="7" start="start">cf</pageBreakToken>
|
||
.
|
||
<bibRefCitation id="A409139D8308C63C9B0C95AFD102C18B" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 36B); the male telson is proportionately shorter (Fig. 4A) (elongated and linguiform in
|
||
<taxonomicName id="31209CE2A4F570B1BEA1410939274E90" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="6" pageNumber="7" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
; cf.
|
||
<bibRefCitation id="3B450AE9503061CBF6FD65D49FAE4885" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 36E); and the G1 is relatively straighter with the tip tapered to a tip (Fig. 7
|
||
<normalizedToken id="D20EFC4880F18290E1BA636FE5D2EB87" originalValue="A–D">A-D</normalizedToken>
|
||
) (G1 slightly sinuous with the tip arrow-shaped in
|
||
<taxonomicName id="96FFA5B4FC11CE7655D9976B4F4708D3" class="Malacostraca" family="Euryplacidae" genus="Psopheticoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Psopheticoides" order="Decapoda" pageId="6" pageNumber="7" phylum="Arthropoda" rank="genus">Psopheticoides</taxonomicName>
|
||
; cf.
|
||
<bibRefCitation id="B24EA39676C61A930279BB4116276C16" author="Castro, P" journalOrPublisher="Zootaxa" pageId="14" pageNumber="15" pagination="1 - 130" title="Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea)." url="https://doi.org/10.11646/zootaxa.2375.1.1" volume="2375" year="2010">Castro and Ng 2010</bibRefCitation>
|
||
: fig. 38D, E).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |