308 lines
38 KiB
XML
308 lines
38 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1167.102766" ID-Pensoft-Pub="1313-2970-1167-211" ID-Pensoft-UUID="B0EF00BBC63D51F482EBF37F48E9FC3D" ID-ZooBank="3FC6EC4997A0477DAE1F839CBB258099" ModsDocID="1313-2970-1167-211" checkinTime="1687037226340" checkinUser="pensoft" docAuthor="Shashi, Shibly Sadique, Pan, Da, Emu, Nusrath Jahan, Roy, Mishal, Sadek, Md. Abu, Sharifuzzaman, S M & Sun, Hongying" docDate="2023" docId="D78E2F367B28544FA5F9AE3FBC8BC29B" docLanguage="en" docName="ZooKeys 1167: 211-222" docOrigin="ZooKeys 1167" docPubDate="2023-06-16" docSource="http://dx.doi.org/10.3897/zookeys.1167.102766" docTitle="Maydelliathelphusa edentula Alcock 1909" docType="treatment" docVersion="2" id="B0EF00BBC63D51F482EBF37F48E9FC3D" lastPageNumber="211" masterDocId="B0EF00BBC63D51F482EBF37F48E9FC3D" masterDocTitle="Two new records and an updated checklist of freshwater crabs (Arthropoda, Malacostraca, Decapoda, Potamidae and Gecarcinucidae) from Bangladesh" masterLastPageNumber="222" masterPageNumber="211" pageNumber="211" updateTime="1687037527428" updateUser="ExternalLinkService">
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<mods:title id="017DB272FA0A753C5F92736144B574B3">Two new records and an updated checklist of freshwater crabs (Arthropoda, Malacostraca, Decapoda, Potamidae and Gecarcinucidae) from Bangladesh</mods:title>
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<mods:namePart id="00FFB55C583D82B05BF26580AC341322">Shashi, Shibly Sadique</mods:namePart>
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<mods:affiliation id="69C2A0D5F2B8B22D6B3070FD35426B25">College of Life Sciences, Nanjing Normal University, Nanjing 210023, China & Institute of Marine Sciences, University of Chittagong, Chattogram 4331, Bangladesh</mods:affiliation>
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<mods:namePart id="30DB37BA5C7961B6A0FCD02A74C3B64B">Pan, Da</mods:namePart>
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<mods:affiliation id="349295BCEFF4121F2611347A338C5283">College of Life Sciences, Nanjing Normal University, Nanjing 210023, China</mods:affiliation>
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<mods:namePart id="6950362B761BDFEE0FC6495E2D2DCE1E">Emu, Nusrath Jahan</mods:namePart>
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<mods:affiliation id="6FA252BF80DC5F0F18ACB7CAFBF7E6ED">Institute of Marine Sciences, University of Chittagong, Chattogram 4331, Bangladesh</mods:affiliation>
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<mods:namePart id="EED7EEAC613C9C6914FF2F5B4557FF99">Roy, Mishal</mods:namePart>
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<mods:nameIdentifier id="6631B98A110475AD0FBECACC7D3D4CBB" type="ORCID">https://orcid.org/0000-0001-7560-4392</mods:nameIdentifier>
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<mods:affiliation id="799EC6A2A37C7555E7DE6110EBB669FF">Institute of Marine Sciences, University of Chittagong, Chattogram 4331, Bangladesh</mods:affiliation>
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<mods:namePart id="D501F66B3AEA890FA6A7D1FBE81B5833">Sadek, Md. Abu</mods:namePart>
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<mods:affiliation id="90408C088E4FC645538B939C6C6E2BAC">Institute of Marine Sciences, University of Chittagong, Chattogram 4331, Bangladesh</mods:affiliation>
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<mods:namePart id="F76180367A1B63AED10D49189607699B">Sharifuzzaman, S M</mods:namePart>
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<mods:affiliation id="227F3948C935FE5C9E3EBDB7826B4EAA">Institute of Marine Sciences, University of Chittagong, Chattogram 4331, Bangladesh</mods:affiliation>
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<mods:namePart id="B9EE6BEAA218EAA2CCD3D9085ED6ACCA">Sun, Hongying</mods:namePart>
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<mods:affiliation id="FBD62539E48F110A5FCB9BC8BBFDB105">College of Life Sciences, Nanjing Normal University, Nanjing 210023, China</mods:affiliation>
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<mods:nameIdentifier id="71E6579A7BD13B58255EE8D36AD7E80A" type="email">sunhongying@njnu.edu.cn</mods:nameIdentifier>
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<mods:title id="25A017C0B858D11302CAA3F65F43FD3E">ZooKeys</mods:title>
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<mods:part id="67B298704D5F18B190CAAE4DDC7D5ECD">
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<mods:date id="8502A40FA0F26A351D187B4138B61DEC">2023</mods:date>
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<mods:number id="FF0500FEF4F4407799C1582E8A43CAA1">2023-06-16</mods:number>
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<mods:number id="E21EEAA12E59E781D20FC2496A298B82">1167</mods:number>
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<mods:classification id="CC5ACE1925C293DB057858E4AD10D471">journal article</mods:classification>
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<treatment id="D78E2F367B28544FA5F9AE3FBC8BC29B" LSID="urn:lsid:plazi:treatment:D78E2F367B28544FA5F9AE3FBC8BC29B" httpUri="http://treatment.plazi.org/id/D78E2F367B28544FA5F9AE3FBC8BC29B" lastPageNumber="211" pageId="0" pageNumber="211">
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<subSubSection id="CB82802F5F6FE60E92AAFA65CE6380AD" pageId="0" pageNumber="211" type="nomenclature">
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<paragraph id="E91326A0A9889FEE3DE9CDF42348084B" pageId="0" pageNumber="211">
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<taxonomicName id="6AA7385950D6551BD3168521DA10033F" ID-CoL="72WJL" ID-ENA="545735" LSID="D78E2F36-7B28-544F-A5F9-AE3FBC8BC29B" authority="Alcock, 1909" authorityName="Alcock" authorityYear="1909" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula">Maydelliathelphusa edentula Alcock, 1909</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="3B647A42DDA7B8E6D06E71DF182FFAD9" pageId="0" pageNumber="211" type="description">
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<paragraph id="BD87AC791C95CE74935FE8E2A261D58C" pageId="0" pageNumber="211">
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<figureCitation id="640E40E279E6726E7DB45C566A6614EC" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">Figs 3</figureCitation>
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<figureCitation id="5D94C420E170C2DD4A1720EE0C3C314F" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. G 1 a, b Acanthopotamon fungosum c, d Maydelliathelphusa edentula. Scale bars: 2 mm." figureDoi="10.3897/zookeys.1167.102766.figure4" httpUri="https://binary.pensoft.net/fig/865047" pageId="0" pageNumber="211">, 4c, d</figureCitation>
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</paragraph>
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<subSubSection id="0F1B0A71F3E305F902ECC6BA8C6D55D0" pageId="0" pageNumber="211" type="reference_group">
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<paragraph id="D31DCA8EAB9D563B9F68710CED6C9277" pageId="0" pageNumber="211">
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<taxonomicName id="5F5A0EBB5919125E98572BC1A6C6A293" class="Malacostraca" family="Gecarcinucidae" genus="Potamon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Potamon lugubre subsp. edentulum" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="subSpecies" species="lugubre" subSpecies="edentulum">Potamon lugubre edentulum</taxonomicName>
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Alcock, 1909: 247.
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||
</paragraph>
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<paragraph id="2642D863ADF71ADC03639C27659A523E" pageId="0" pageNumber="211">
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||
<taxonomicName id="C9DDE7C9F4A21D81C5874475FBF86622" class="Malacostraca" family="Gecarcinucidae" genus="Paratelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Paratelphusa (Barytelphusa) edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula" subGenus="Barytelphusa">Paratelphusa (Barytelphusa) edentula</taxonomicName>
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-
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<bibRefCitation id="4A8517088AC05D39050C4733C1E1C507" DOI="https://doi.org/10.26515/rzsi/v3/i3/1909/163275" author="Alcock, A" journalOrPublisher="Records of the Indian Museum" pageId="0" pageNumber="211" pagination="243 - 252" refId="B3" refString="Alcock, A, 1909. Diagnoses of new species and varieties of freshwater crabs. Nos 1-4. Records of the Indian Museum 3: 243 - 252, DOI: https://doi.org/10.26515/rzsi/v3/i3/1909/163275" title="Diagnoses of new species and varieties of freshwater crabs. Nos 1 - 4." url="https://doi.org/10.26515/rzsi/v3/i3/1909/163275" volume="3" year="1909">Alcock 1909</bibRefCitation>
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||
: 376;
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||
<bibRefCitation id="97A3A2832B2251C6F3942DF6DC71238E" author="Alcock, A" journalOrPublisher="Trustees of the Indian Museum, Calcutta" pageId="0" pageNumber="211" refId="B4" refString="Alcock, A, 1910. Catalogue of the Indian DecapodaCrustacea in the Collection of the Indian Museum. Part I. Brachyura. Fasciculus II. The Indian Freshwater Crabs - Potamonidae. Trustees of the Indian Museum, Calcutta" title="Catalogue of the Indian DecapodaCrustacea in the Collection of the Indian Museum. Part I. Brachyura. Fasciculus II. The Indian Freshwater Crabs - Potamonidae." year="1910">Alcock 1910</bibRefCitation>
|
||
: 84, fig. 19.
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||
</paragraph>
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||
<paragraph id="5C8D64D2A4AE26F21054EA34E7659AF2" pageId="0" pageNumber="211">
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||
<taxonomicName id="FE46673267C4C56EDF6CEB65D7CA8B51" class="Malacostraca" family="Gecarcinucidae" genus="Barytelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Barytelphusa (Maydelliathelphusa) edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula" subGenus="Maydelliathelphusa">Barytelphusa (Maydelliathelphusa) edentula</taxonomicName>
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||
-
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<bibRefCitation id="D9BE4A228B3F853E1A986FCCE0AB708C" author="Bott, R" journalOrPublisher="Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft" pageId="0" pageNumber="211" pagination="1 - 338" refId="B7" refString="Bott, R, 1970. Die Suesswasserkrabben von Europa, Asien, Australien-und ihre Stammgeschichte. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 526: 1 - 338" title="Die Suesswasserkrabben von Europa, Asien, Australien-und ihre Stammgeschichte." volume="526" year="1970">Bott 1970</bibRefCitation>
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||
: 34.
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||
</paragraph>
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||
<paragraph id="583BA35AA14120FAAC0EB27214E97B20" pageId="0" pageNumber="211">
|
||
<taxonomicName id="746086D7B90E1D969182A1486D4B60B6" authorityName="Alcock" authorityYear="1909" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula">Maydelliathelphusa edentula</taxonomicName>
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||
-
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<bibRefCitation id="56C54E4D842512A26877452E002C0CE2" author="Ng, PKL" journalOrPublisher="The Raffles Bulletin of Zoology" pageId="0" pageNumber="211" pagination="1 - 286" refId="B29" refString="Ng, PKL, Guinot, D, Davie, PJF, 2008. Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. The Raffles Bulletin of Zoology 17: 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>
|
||
: 68.
|
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</paragraph>
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</subSubSection>
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<subSubSection id="80BE3ED6EFE5E1E3AF7BEFE100709FF9" pageId="0" pageNumber="211" type="materials_examined">
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<paragraph id="5102D21726EC4012FCAE826EC1B633E5" pageId="0" pageNumber="211">Material examined.</paragraph>
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<paragraph id="30E08240DA850D9251654074749E880D" pageId="0" pageNumber="211">
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||
<materialsCitation id="7E6DB83CE559EC1C37C6EFD3689BAEB6" collectingDate="2021-08-10" collectorName="Shibly Sadique Shashi, Nusrath Jahan Emu." country="Bangladesh" county="Mymensingh" latitude="25.0125" location="Kangsa River" longLatPrecision="21" longitude="90.64833" municipality="Netrokona" specimenCount="1" specimenCount-male="1">
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<specimenCount id="618BA9749688DD25F8EBF20546183B7B" type="male">1 male</specimenCount>
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, 65.89
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<quantity id="40AFD8E87823ACC1FB66C038595E5528" metricMagnitude="-2" metricUnit="m" metricValue="4.9159999999999995" unit="mm" value="49.16">49.16 mm</quantity>
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(Table
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<tableCitation id="57BDF468668BDCF32A44821D3F8F9352" captionStart="Table 1" captionStartId="T1" captionText="Table 1. The morphometric features of Acanthopotamon fungosum (IMSCU / FW-crab 2108.01) and Maydelliathelphusa edentula (IMSCU / FW-crab 2108.02). Lengths and widths in mm; weight in g." httpUri="http://table.plazi.org/id/1BA7693B33BD20E5B0518B95A813FB76" pageId="0" pageNumber="211" tableUuid="1BA7693B33BD20E5B0518B95A813FB76">1</tableCitation>
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),
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<location id="3AF6D7748FE31B04858F98D4C2A0F63C" LSID="urn:lsid:plazi:treatment:D78E2F367B28544FA5F9AE3FBC8BC29B:3AF6D7748FE31B04858F98D4C2A0F63C" country="Bangladesh" county="Mymensingh" latitude="25.0125" longLatPrecision="21" longitude="90.64833" municipality="Netrokona" name="Kangsa River">Kangsa River</location>
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,
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<collectingMunicipality id="23B4DF935D6236214867F23A7CA51306">Netrokona</collectingMunicipality>
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,
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<collectingCounty id="8A8036213E80B88546E6233B22529B0A">Mymensingh</collectingCounty>
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,
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<collectingCountry id="221FBF954BC80184E09A2E81656838CA" name="Bangladesh">Bangladesh</collectingCountry>
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,
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<geoCoordinate id="0C76C33098BBF1E7812768CC82EC3FD4" degrees="25" direction="north" minutes="00" orientation="latitude" precision="15" seconds="45" value="25.0125">25°00'45"N</geoCoordinate>
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,
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<geoCoordinate id="AEDA8969AD81EEDA3B43A3AEFC8A280A" degrees="90" direction="east" minutes="38" orientation="longitude" precision="15" seconds="54" value="90.64833">90°38'54"E</geoCoordinate>
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,
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||
<collectingDate id="9EEB3F7672B031ECF24DC8CC5E323058" value="2021-08-10">10 August 2021</collectingDate>
|
||
, collected by
|
||
<collectorName id="9F4BDFF4CC7D81224FE1744CB9343A28">Shibly Sadique Shashi</collectorName>
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||
and
|
||
<collectorName id="3F2C00BA3D1DEEC3D750B5837AB3A5F6">Nusrath Jahan Emu.</collectorName>
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="E01669040D83556526DA9A4B1E6539AA" pageId="0" pageNumber="211" type="description">
|
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<paragraph id="83CCD98B06F7CA8645DD4EFAFEAEF0AA" pageId="0" pageNumber="211">Description of the male.</paragraph>
|
||
<paragraph id="7FA3019F8495645B212B152F5F6308F0" pageId="0" pageNumber="211">
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||
Carapace slightly depressed, ca 1.34
|
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<normalizedToken id="3AFDBBA6C42006CACF7CB40F3399AF6E" originalValue="×">x</normalizedToken>
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broader than long; epigastric cristae distinct, epigastric and postorbital cristae on either side united (Fig.
|
||
<figureCitation id="64A5BDD72BE105F53A7E502CD459AB2B" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3a</figureCitation>
|
||
); postorbital cristae distinct, sharp, subparallel to frontal margin; frontal region deflexed, relatively wide; external orbital tooth prominent, epibranchial tooth present, prominent; frontal margin bilobed, frontal median triangle not complete; cervical groove well developed; mesogastric furrow very distinct, deep, slightly bifurcated posteriorly. Anterolateral and posterolateral regions rugose. Eyes smaller than orbital floor; eyestalk short. Third maxilliped with ischium subrectangular, longer than broad, with distinct narrow medial groove; merus pentagonal, broader than long; exopod slender, longer than ischium, reaching base of merus, with long flagellum (Fig.
|
||
<figureCitation id="488BCF438418DA7FDD10DEC0620E1148" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3c</figureCitation>
|
||
). Epistome lateral margins slightly sinuous, medial lobe triangular (Fig.
|
||
<figureCitation id="C5D9512C6B8BF2D8ADA227A926197629" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3c</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="9D4202A284B94F729FAA20B84D2DA41D" doi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211" start="Figure 3" startId="F3">
|
||
<paragraph id="9AA0AE6CEBDD30F490C1144D530420B2" pageId="0" pageNumber="211">
|
||
<emphasis id="B28052DBB2C384E4DC62DAFC089DF4D9" bold="true" pageId="0" pageNumber="211">Figure 3.</emphasis>
|
||
<taxonomicName id="7FB628181EF3D8E2F4CC22478E77BBF6" authorityName="Alcock" authorityYear="1909" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula">
|
||
<emphasis id="ACA7306EAEB4DBB915CB876A21E6DE69" italics="true" pageId="0" pageNumber="211">Maydelliathelphusa edentula</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="08BFAA29086597EE57022B4295698A79" bold="true" pageId="0" pageNumber="211">a</emphasis>
|
||
dorsal view
|
||
<emphasis id="F4F3A608A1E89FA7B6974EB89912E585" bold="true" pageId="0" pageNumber="211">b</emphasis>
|
||
ventral view
|
||
<emphasis id="456314D4FF29507A01D2FFA0D54AFB1E" bold="true" pageId="0" pageNumber="211">c</emphasis>
|
||
frontal view
|
||
<emphasis id="D834A7305835B4D8B423680B8B92F62D" bold="true" pageId="0" pageNumber="211">d</emphasis>
|
||
major chela and
|
||
<emphasis id="3E83C7D05159C2EB6B9E21FB11A49955" bold="true" pageId="0" pageNumber="211">e</emphasis>
|
||
minor chela. Scale bars: 2 cm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="94A4EC05EFC6CA84F34332F39919D186" pageId="0" pageNumber="211">
|
||
Chelipeds surface smooth, unequal, right cheliped larger; carpus with distinct spine on inner angle; fingers longer than palm, movable finger strongly curved downward, immovable finger smoothly curved upward, wide gap between dactyl and pollex when closed, movable finger comparatively larger than immovable finger, inner margin of fingers lined with numerous round and blunt teeth (Fig.
|
||
<figureCitation id="2227D9242645DCEF133D3D3ABB317F10" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3d</figureCitation>
|
||
); ambulatory legs stout; second pair of ambulatories longest while the fourth pair shortest (Fig.
|
||
<figureCitation id="D01971515AB4AD3F6AA8D7FF33A8037D" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3b</figureCitation>
|
||
); dactylus slender, longer than propodus, with 4 rows of spines on the margin (Fig.
|
||
<figureCitation id="2021A17ADB51E0E8B6B03ACCEFACEF9B" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3b</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3383B986591829CDD319CBED5860627C" pageId="0" pageNumber="211">
|
||
Male thoracic sternum smooth, pitted. Sternites s1/s2 completely fused forming triangular structure; suture between s3/s4 shallow; suture between s4/s5, s5/s6, s6/s7, s7/s8 distinct (Fig.
|
||
<figureCitation id="9D29CF1122B2CC127088ACB58A894762" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3b</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="2E29CA2909BA634EF51A11D0FF49A5D3" pageId="0" pageNumber="211">
|
||
Male pleon T-shaped, somites 5 and 6 constricted medially. Telson tongue-shaped, length and width almost equal (Fig.
|
||
<figureCitation id="A88162EB9256D3FF3C1611090407A448" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Maydelliathelphusa edentula a dorsal view b ventral view c frontal view d major chela and e minor chela. Scale bars: 2 cm." figureDoi="10.3897/zookeys.1167.102766.figure3" httpUri="https://binary.pensoft.net/fig/865046" pageId="0" pageNumber="211">3b</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="47EEA5FB4B6A5747F1DB912841F2B33F" pageId="0" pageNumber="211">
|
||
G1 stout, straight; terminal segment tapering gradually, almost 2
|
||
<normalizedToken id="7C4380173F84034A06DB9563F854D3C3" originalValue="×">x</normalizedToken>
|
||
shorter than subterminal segment (Fig.
|
||
<figureCitation id="5D1B8D29F3E77866195133E17FA99395" captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. G 1 a, b Acanthopotamon fungosum c, d Maydelliathelphusa edentula. Scale bars: 2 mm." figureDoi="10.3897/zookeys.1167.102766.figure4" httpUri="https://binary.pensoft.net/fig/865047" pageId="0" pageNumber="211">4c, d</figureCitation>
|
||
). G2 elongated, shorter than G1.
|
||
</paragraph>
|
||
<caption id="173F9DA0E6FDE646498F34C5AB135272" doi="10.3897/zookeys.1167.102766.figure4" httpUri="https://binary.pensoft.net/fig/865047" pageId="0" pageNumber="211" start="Figure 4" startId="F4">
|
||
<paragraph id="CB97D8CE5FF6AC75E06864EEBA05907D" pageId="0" pageNumber="211">
|
||
<emphasis id="D217EA1681CC2980581A4899D8AE25F5" bold="true" pageId="0" pageNumber="211">Figure 4.</emphasis>
|
||
G1
|
||
<emphasis id="A7BB7D9BA668A95A5DFAF4844E4C6E01" bold="true" pageId="0" pageNumber="211">a, b</emphasis>
|
||
<taxonomicName id="ED9467D801A7E8E710CBF084AE62D000" baseAuthorityName="Alcock" baseAuthorityYear="1909" class="Malacostraca" family="Potamidae" genus="Acanthopotamon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthopotamon fungosum" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="fungosum">
|
||
<emphasis id="F7E0CB215D397079C155881037F33F77" italics="true" pageId="0" pageNumber="211">Acanthopotamon fungosum</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="12803292047D9C4D774CB8A6F1D1FDE4" bold="true" pageId="0" pageNumber="211">c, d</emphasis>
|
||
<taxonomicName id="F1B4B510AC9B6D770C2E50C2A7145B3C" authorityName="Alcock" authorityYear="1909" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula">
|
||
<emphasis id="4C4FC89EBEC6E83DB27C2BDF8322C967" italics="true" pageId="0" pageNumber="211">Maydelliathelphusa edentula</emphasis>
|
||
</taxonomicName>
|
||
. Scale bars: 2 mm.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection id="32C3F0D2F419F4E93A6CEB306179C260" pageId="0" pageNumber="211" type="remarks">
|
||
<paragraph id="7070DD390D4AB06A3CFF7EED255C136E" pageId="0" pageNumber="211">Remarks.</paragraph>
|
||
<paragraph id="23D588442862F0687FE846F4AE1FF141" pageId="0" pageNumber="211">
|
||
<taxonomicName id="1EBBC1347EF581F10C8BEC3EB4EDFBA6" authorityName="Alcock" authorityYear="1909" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa edentula" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="species" species="edentula">
|
||
<emphasis id="41DF8024FFB25D501D3300E56B73EB31" italics="true" pageId="0" pageNumber="211">Maydelliathelphusa edentula</emphasis>
|
||
</taxonomicName>
|
||
was originally described as
|
||
<taxonomicName id="5AD434189566D606089C25ACEF33BC5D" class="Malacostraca" family="Gecarcinucidae" genus="Potamon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Potamon lugubre subsp. var. var. edentulum" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="variety" species="lugubre" subSpecies="var." variety="edentulum">Potamon lugubre var. edentulum</taxonomicName>
|
||
<bibRefCitation id="DD618C2205051CB97D48C0BD7B5D8864" DOI="https://doi.org/10.26515/rzsi/v3/i3/1909/163275" author="Alcock, A" journalOrPublisher="Records of the Indian Museum" pageId="0" pageNumber="211" pagination="243 - 252" refId="B3" refString="Alcock, A, 1909. Diagnoses of new species and varieties of freshwater crabs. Nos 1-4. Records of the Indian Museum 3: 243 - 252, DOI: https://doi.org/10.26515/rzsi/v3/i3/1909/163275" title="Diagnoses of new species and varieties of freshwater crabs. Nos 1 - 4." url="https://doi.org/10.26515/rzsi/v3/i3/1909/163275" volume="3" year="1909">Alcock 1909</bibRefCitation>
|
||
from Assam, India and subsequently transferred to
|
||
<taxonomicName id="F7C953E4AD74A77B211D0FEE16D9F484" authority="" class="Malacostraca" family="Gecarcinucidae" genus="Barytelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Barytelphusa (Maydelliathelphusa)" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="subGenus" subGenus="Maydelliathelphusa">Barytelphusa (Maydelliathelphusa)</taxonomicName>
|
||
Bott, 1969 (
|
||
<bibRefCitation id="117BA3E85F11715EA02EC6CB97A6A7DC" author="Bott, R" journalOrPublisher="Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft" pageId="0" pageNumber="211" pagination="1 - 338" refId="B7" refString="Bott, R, 1970. Die Suesswasserkrabben von Europa, Asien, Australien-und ihre Stammgeschichte. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 526: 1 - 338" title="Die Suesswasserkrabben von Europa, Asien, Australien-und ihre Stammgeschichte." volume="526" year="1970">Bott 1970</bibRefCitation>
|
||
). The present record is the first report of the genus
|
||
<taxonomicName id="E53294C738E2E15C824922832E468970" authorityName="Bott" authorityYear="1969" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="4001EF8BEDBBAA785195B8673B15C60B" italics="true" pageId="0" pageNumber="211">Maydelliathelphusa</emphasis>
|
||
</taxonomicName>
|
||
from Bangladesh. Previously,
|
||
<taxonomicName id="82B7327247FAF73023218308136E48FF" lsidName="M. edentula" pageId="0" pageNumber="211" rank="species" species="edentula">
|
||
<emphasis id="F4D4C56667DBA35D06F87825CB6CAE18" italics="true" pageId="0" pageNumber="211">M. edentula</emphasis>
|
||
</taxonomicName>
|
||
was documented in India (Assam, Nagaland, Mizoram) and Bhutan (Samchi) (
|
||
<bibRefCitation id="1FB8A2537375F431A56956A043C151BA" author="Cumberlidge, N" journalOrPublisher="Zootaxa" pageId="0" pageNumber="211" refId="B13" refString="Cumberlidge, N, 2008b. Maydelliathelphusa edentula. The IUCN Red List of Threatened Species 2008: e.T134064A3905366." title="Maydelliathelphusa edentula. The IUCN Red List of Threatened Species 2008: e. T 134064 A 3905366." year="2008 b">Cumberlidge 2008b</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="0E59A3A564B7771839E6890D50BD3C3F" author="Valarmathi, K" editor="Chandra, K" journalOrPublisher="Zoological Survey of India, Kolkata, India" pageId="0" pageNumber="211" pagination="313 - 331" refId="B39" refString="Valarmathi, K, 2017. Crustacea: Decapoda. In: Chandra, K, Gopi, KC, Rao, DV, Valarmathi, K, Alfred, JRB, Eds., Current Status of Freshwater Faunal Diversity in India. Zoological Survey of India, Kolkata, India: 313 - 331" title="Crustacea: Decapoda." volumeTitle="Current Status of Freshwater Faunal Diversity in India." year="2017">Valarmathi 2017</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="56FCF310A5AC48DF533061298FA30F11" author="Ray, D" journalOrPublisher="Science and Mathematics" pageId="0" pageNumber="211" pagination="96 - 103" refId="B36" refString="Ray, D, Mitra, S, Shaw, S, Roy, D, Bhandari, SK, Jana, T, 2018. Freshwater crab of North East India, its importance and conservation. International Journal of Engineering. Science and Mathematics 4: 96 - 103" title="Freshwater crab of North East India, its importance and conservation. International Journal of Engineering." volume="4" year="2018">Ray et al. 2018</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="FF53219244BEEE83BF6EA5D826C9E934" DOI="https://doi.org/10.11609/jott.7465.13.13.20084-20089" author="Das, RK" journalOrPublisher="Journal of Threatened Taxa" pageId="0" pageNumber="211" pagination="20084 - 20089" refId="B15" refString="Das, RK, 2021. First record of a freshwater crab, Maydelliathelphusa masoniana (Henderson, 1893) (Decapoda: Brachyura: Gecarcinucidae) from West Bengal, India. Journal of Threatened Taxa 13 (13): 20084 - 20089, DOI: https://doi.org/10.11609/jott.7465.13.13.20084-20089" title="First record of a freshwater crab, Maydelliathelphusa masoniana (Henderson, 1893) (Decapoda: Brachyura: Gecarcinucidae) from West Bengal, India." url="https://doi.org/10.11609/jott.7465.13.13.20084-20089" volume="13" year="2021">Das 2021</bibRefCitation>
|
||
). Suitable habitats include freshwater rivers and streams (
|
||
<bibRefCitation id="5D991180B00D75559AD8AA77506531C0" author="Cumberlidge, N" journalOrPublisher="Zootaxa" pageId="0" pageNumber="211" refId="B13" refString="Cumberlidge, N, 2008b. Maydelliathelphusa edentula. The IUCN Red List of Threatened Species 2008: e.T134064A3905366." title="Maydelliathelphusa edentula. The IUCN Red List of Threatened Species 2008: e. T 134064 A 3905366." year="2008 b">Cumberlidge 2008b</bibRefCitation>
|
||
). Therefore, it is not surprising that
|
||
<taxonomicName id="573E28D375406BF22564D7B287B0B7C5" lsidName="M. edentula" pageId="0" pageNumber="211" rank="species" species="edentula">
|
||
<emphasis id="841C33522E1334F58B08144B5D0ACEBB" italics="true" pageId="0" pageNumber="211">M. edentula</emphasis>
|
||
</taxonomicName>
|
||
occurs in eastern Bangladesh, near its known distribution range.
|
||
</paragraph>
|
||
<paragraph id="4B2D331D0346173290FF921C05256570" pageId="0" pageNumber="211">
|
||
The IUCN conservation status of
|
||
<taxonomicName id="CC376735ED84E008038A0B38235F8621" lsidName="M. edentula" pageId="0" pageNumber="211" rank="species" species="edentula">
|
||
<emphasis id="F1BF4E7A5A8BBA31159A5722C820313F" italics="true" pageId="0" pageNumber="211">M. edentula</emphasis>
|
||
</taxonomicName>
|
||
is Near Threatened (NT) because of its limited distribution range and vulnerable habitat (
|
||
<bibRefCitation id="37598F99E9B958D5C41C7BAF9E570D80" author="Cumberlidge, N" journalOrPublisher="Zootaxa" pageId="0" pageNumber="211" refId="B13" refString="Cumberlidge, N, 2008b. Maydelliathelphusa edentula. The IUCN Red List of Threatened Species 2008: e.T134064A3905366." title="Maydelliathelphusa edentula. The IUCN Red List of Threatened Species 2008: e. T 134064 A 3905366." year="2008 b">Cumberlidge 2008b</bibRefCitation>
|
||
). Although the current study has expanded its known geographic distribution, the conservation status of this species is still not optimistic. In western Bangladesh, some local people, especially fishermen, eat this crab on a limited scale. In addition, various types of human activities, like pollution, urbanization and sand mining are impacting freshwater habitats in that area and, consequently, are threats to the population of
|
||
<taxonomicName id="73702E36B6E3D377B8A5A46F578229CC" lsidName="M. edentula" pageId="0" pageNumber="211" rank="species" species="edentula">
|
||
<emphasis id="155BC356D48CF2D1532A4869AA357364" italics="true" pageId="0" pageNumber="211">M. edentula</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="C4651C66C6C3C4B19750AAF92EAC31A9" pageId="0" pageNumber="211">
|
||
Until now, five species belonging to the genus
|
||
<taxonomicName id="B8CA031E144D8C969F12AE6494AA2919" authorityName="Bott" authorityYear="1969" class="Malacostraca" family="Gecarcinucidae" genus="Maydelliathelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Maydelliathelphusa" order="Decapoda" pageId="0" pageNumber="211" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="167A0629DCC1341A7E742D52DF6432FB" italics="true" pageId="0" pageNumber="211">Maydelliathelphusa</emphasis>
|
||
</taxonomicName>
|
||
have been recorded from India, Bhutan, and Nepal (
|
||
<bibRefCitation id="3208890899CC4C9331889D325529815D" author="Cumberlidge, N" journalOrPublisher="Zootaxa" pageId="0" pageNumber="211" refId="B14" refString="Cumberlidge, N, 2008c. Maydelliathelphusa lugubris. The IUCN Red List of Threatened Species 2008: e.T134282A3931648." title="Maydelliathelphusa lugubris. The IUCN Red List of Threatened Species 2008: e. T 134282 A 3931648." year="2008 c">Cumberlidge 2008c</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="3AD9DA782D60A1F0C712D802C7999160" author="Valarmathi, K" editor="Chandra, K" journalOrPublisher="Zoological Survey of India, Kolkata, India" pageId="0" pageNumber="211" pagination="313 - 331" refId="B39" refString="Valarmathi, K, 2017. Crustacea: Decapoda. In: Chandra, K, Gopi, KC, Rao, DV, Valarmathi, K, Alfred, JRB, Eds., Current Status of Freshwater Faunal Diversity in India. Zoological Survey of India, Kolkata, India: 313 - 331" title="Crustacea: Decapoda." volumeTitle="Current Status of Freshwater Faunal Diversity in India." year="2017">Valarmathi 2017</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="3C425A8FF9D93BEF8AA290440D3524CD" DOI="https://doi.org/10.11609/jott.7465.13.13.20084-20089" author="Das, RK" journalOrPublisher="Journal of Threatened Taxa" pageId="0" pageNumber="211" pagination="20084 - 20089" refId="B15" refString="Das, RK, 2021. First record of a freshwater crab, Maydelliathelphusa masoniana (Henderson, 1893) (Decapoda: Brachyura: Gecarcinucidae) from West Bengal, India. Journal of Threatened Taxa 13 (13): 20084 - 20089, DOI: https://doi.org/10.11609/jott.7465.13.13.20084-20089" title="First record of a freshwater crab, Maydelliathelphusa masoniana (Henderson, 1893) (Decapoda: Brachyura: Gecarcinucidae) from West Bengal, India." url="https://doi.org/10.11609/jott.7465.13.13.20084-20089" volume="13" year="2021">Das 2021</bibRefCitation>
|
||
). The morphology of the carapace of
|
||
<taxonomicName id="D7B18B795B8B4B80AE7F0CDE519599BC" lsidName="M. edentula" pageId="0" pageNumber="211" rank="species" species="edentula">
|
||
<emphasis id="244A48192065BBE8998567991BD81D1C" italics="true" pageId="0" pageNumber="211">M. edentula</emphasis>
|
||
</taxonomicName>
|
||
is superficially similar to that of other four species. However,
|
||
<taxonomicName id="B83A916137279A73C7DCDDAFDA823A4F" lsidName="M. edentula" pageId="0" pageNumber="211" rank="species" species="edentula">
|
||
<emphasis id="CDF26360643CC7F46776202CA1B36F95" italics="true" pageId="0" pageNumber="211">M. edentula</emphasis>
|
||
</taxonomicName>
|
||
can be easily distinguished externally by its large, distinctively asymmetric chelipeds and its united epigastric and postorbital cristae (
|
||
<bibRefCitation id="C835721A4B7B89744E717EB5F104AA1C" author="Bott, R" journalOrPublisher="Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft" pageId="0" pageNumber="211" pagination="1 - 338" refId="B7" refString="Bott, R, 1970. Die Suesswasserkrabben von Europa, Asien, Australien-und ihre Stammgeschichte. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 526: 1 - 338" title="Die Suesswasserkrabben von Europa, Asien, Australien-und ihre Stammgeschichte." volume="526" year="1970">Bott 1970</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="099D2097030F6D3DB707D8B1554A0165" DOI="https://doi.org/10.11609/jott.7465.13.13.20084-20089" author="Das, RK" journalOrPublisher="Journal of Threatened Taxa" pageId="0" pageNumber="211" pagination="20084 - 20089" refId="B15" refString="Das, RK, 2021. First record of a freshwater crab, Maydelliathelphusa masoniana (Henderson, 1893) (Decapoda: Brachyura: Gecarcinucidae) from West Bengal, India. Journal of Threatened Taxa 13 (13): 20084 - 20089, DOI: https://doi.org/10.11609/jott.7465.13.13.20084-20089" title="First record of a freshwater crab, Maydelliathelphusa masoniana (Henderson, 1893) (Decapoda: Brachyura: Gecarcinucidae) from West Bengal, India." url="https://doi.org/10.11609/jott.7465.13.13.20084-20089" volume="13" year="2021">Das 2021</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |