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<document id="F35D1DB3C1312D09C7032738781EA7E3" ID-DOI="10.5252/zoosystema2023v45a9" ID-ISSN="1638-9387" ID-Zenodo-Dep="8071253" ID-ZooBank="urn:lsid:zoobank.org:pub:69C34731-8C25-4A1E-B336-B222CD3CBAC3" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1686747199180" checkinUser="felipe" docAuthor="Guinot, Danièle" docDate="2023" docId="03CDBE749332B51CCE38FA94FEC4FE89" docLanguage="en" docName="Zoosystema.45.9.225-372.pdf" docOrigin="Zoosystema 45 (9)" docStyle="DocumentStyle:5CC576F744449C1860B4E72ABD884631.5:Zoosystema.2020-.journal_article" docStyleId="5CC576F744449C1860B4E72ABD884631" docStyleName="Zoosystema.2020-.journal_article" docStyleVersion="5" docTitle="Medorippe crosnieri Chen 1988" docType="treatment" docVersion="3" lastPageNumber="278" masterDocId="FFF4C60C9304B524CD15FFC0FF9AFFF8" masterDocTitle="A new subfamily classification of the highly diversified Dorippidae H. Milne Edwards, 1837 (Crustacea, Decapoda, Brachyura, Dorippoidea), using morphological, molecular and palaeotonlogical data, with special emphasis on its unique female reproductive system" masterLastPageNumber="372" masterPageNumber="225" pageNumber="277" updateTime="1687453794845" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="728B3998ECF5081EAE87E526F72D7456">A new subfamily classification of the highly diversified Dorippidae H. Milne Edwards, 1837 (Crustacea, Decapoda, Brachyura, Dorippoidea), using morphological, molecular and palaeotonlogical data, with special emphasis on its unique female reproductive system</mods:title>
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<mods:namePart id="29B696567252271764D4FEFED2CD0709">Guinot, Danièle</mods:namePart>
<mods:affiliation id="9BAFB6E32759D8377E6537B4216294CB">Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, case postale 53, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) daniele. guinot @ mnhn. fr Dedicated to the memory of my colleague and dearest friend Ngan Kee NG (1966 - 2022)</mods:affiliation>
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<taxonomicName id="4C6474E19332B512C9B6FA94FC2EFA75" ID-CoL="6QWGG" authority="CHEN, 1988" authorityName="Chen" authorityYear="1988" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="54" pageNumber="277" phylum="Arthropoda" rank="species" species="crosnieri">
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<bibRefCitation id="EFF572939332B512CE38FAB3FC2EFA75" author="CHEN" box="[813,948,1395,1422]" firstAuthor="CHEN" pageId="54" pageNumber="277" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">
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, 1988
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</paragraph>
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<paragraph id="8BDB0F629332B512CE38FA53FBEEF813" blockId="54.[811,1457,1364,2028]" pageId="54" pageNumber="277">
A few years ago around 2010-2012, we had a project with J. C. Y. Lai (ZRC) to revise the status of 
<taxonomicName id="4C6474E19332B512C9F6FA73FC36FA15" authority="Chen, 1988" authorityName="Chen" authorityYear="1988" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="54" pageNumber="277" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709332B512C9F6FA73FA35FA35" box="[1251,1455,1459,1485]" italics="true" pageId="54" pageNumber="277">Medorippe crosnieri</emphasis>
<bibRefCitation id="EFF572939332B512CE38FA13FC36FA15" author="Chen" box="[813,940,1491,1517]" firstAuthor="Chen" pageId="54" pageNumber="277" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen, 1988</bibRefCitation>
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by re-examining the Malagasy Chen’s type material: 
<typeStatus id="54DFB1C09332B512CE4FFA33FC21F9F5" box="[858,955,1523,1549]" pageId="54" pageNumber="277">holotype</typeStatus>
: MNHN-IU-2009-1995 (= MNHN-B18269); 
<typeStatus id="54DFB1C09332B512CE3EF9D3FC09F9D5" box="[811,915,1555,1581]" pageId="54" pageNumber="277">paratypes</typeStatus>
: MNHN-IU-2009-1996 (= MNHN-B18269) and MNHN-IU-2009-1997 (= MNHN-B18365). The main issue was to compare it with specimens in the MNHN and ZRC collections assigned to 
<taxonomicName id="4C6474E19332B512C977F9B3FB50F974" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[1122,1226,1650,1676]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="54" pageNumber="277" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709332B512C977F9B3FB50F974" box="[1122,1226,1650,1676]" italics="true" pageId="54" pageNumber="277">M. lanata</emphasis>
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but collected outside of its typical occurrence (the Mediterranean Sea and the West African coast), for example in the 
<collectingCountry id="F3734FF29332B512C99AF972FA84F934" box="[1167,1310,1714,1740]" name="Mozambique" pageId="54" pageNumber="277">Mozambique</collectingCountry>
Channel and in 
<collectingCountry id="F3734FF29332B512CE5CF912FC4CF914" box="[841,982,1746,1772]" name="South Africa" pageId="54" pageNumber="277">South Africa</collectingCountry>
, by also including records in the literature. To test the hypothesis based on morphological characters that 
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<emphasis id="B910D3709332B512CE4BF8D2FC41F8D3" box="[862,987,1810,1835]" italics="true" pageId="54" pageNumber="277">M. crosnieri</emphasis>
</taxonomicName>
could be a valid species, molecular analyses of COI gene of dorippids from West Africa and the Indian Ocean were undertaken. Unfortunately, this study could not be carried out due to inconclusive gene sequence results, awaiting further molecular analyses. The data summarised below are from an advanced draft in collaboration with J. C. Y Lai but is currently on hold.
</paragraph>
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A second species of 
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<emphasis id="B910D3709333B513CC73FF17FE49FF09" box="[358,467,215,241]" italics="true" pageId="55" pageNumber="278">Medorippe</emphasis>
</taxonomicName>
, 
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<emphasis id="B910D3709333B513CCCBFF18FDCDFF09" box="[478,599,216,241]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
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, from the north-west coast of 
<collectingCountry id="F3734FF29333B513CC1FFF37FE1DFEE9" box="[266,391,247,273]" name="Madagascar" pageId="55" pageNumber="278">Madagascar</collectingCountry>
, was established by 
<bibRefCitation id="EFF572939333B513CF5BFF37FC9EFEE9" author="Chen" box="[590,772,247,274]" firstAuthor="Chen" page="681" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen (1988: 681</bibRefCitation>
, fig. 2, pl. 1D, E, table 2; paper often erroneously reported from 1987), based mainly on the smooth dorsal margins of P2 and P3 meri, as opposed to the spinulated margins in 
<taxonomicName id="4C6474E19333B513CD93FEB7FF68FE69" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[134,242,375,401]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CD93FEB7FF68FE69" box="[134,242,375,401]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
. But 
<taxonomicName id="4C6474E19333B513CC27FEB7FE28FE68" authorityName="Chen" authorityYear="1988" box="[306,434,375,400]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CC27FEB7FE28FE68" box="[306,434,375,400]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
was immediately synonymised with 
<taxonomicName id="4C6474E19333B513CDAFFE57FEBBFE48" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[186,289,406,432]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CDAFFE57FEBBFE48" box="[186,289,406,432]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
by Holthuis &amp; Manning (1990: 89, 93), who argued that Chen’s description was “based upon juveniles” and who reproduced (1990: fig. 38) all 
<bibRefCitation id="EFF572939333B513CF33FE16FD27FE08" author="Chen's" box="[550,701,470,496]" firstAuthor="Chen's" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen’s (1988)</bibRefCitation>
figures as 
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<emphasis id="B910D3709333B513CD8AFE37FE92FDE8" box="[159,264,502,528]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
. Examination of the Chen’s material, deposited in the MNHN, shows that the male 
<typeStatus id="54DFB1C09333B513CF24FDD6FD0EFDC8" box="[561,660,534,560]" pageId="55" pageNumber="278">holotype</typeStatus>
MNHN-IU-2009-1995 of 
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<emphasis id="B910D3709333B513CC5DFDF7FE5EFDA8" box="[328,452,567,592]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
is a pre-adult with full-grown but slender gonopods and still symmetrical chelipeds; the two young 
<typeStatus id="54DFB1C09333B513CDDFFDB6FEBCFD68" box="[202,294,630,656]" pageId="55" pageNumber="278">paratype</typeStatus>
males MNHN-IU-2009-1997 (instead of females as mentioned by 
<bibRefCitation id="EFF572939333B513CC6DFD56FD99FD48" author="Chen" box="[376,515,662,688]" firstAuthor="Chen" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen [1988]</bibRefCitation>
) both have undifferentiated gonopods; another 
<typeStatus id="54DFB1C09333B513CC6FFD76FE49FD28" box="[378,467,694,720]" pageId="55" pageNumber="278">paratype</typeStatus>
MNHN-IU-2009-1996 is an immature female without opened vulvae. All these specimens have cylindrical, slender and rather long P2 and P3 meri, and evidently smooth (
<bibRefCitation id="EFF572939333B513CC58FCD5FE52FCD7" author="Chen" box="[333,456,789,815]" firstAuthor="Chen" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen 1988</bibRefCitation>
: fig. 2c, pl. 1D, E).
</paragraph>
<paragraph id="8BDB0F629333B513CD8EFCF5FC9DFB56" blockId="55.[130,777,215,2028]" pageId="55" pageNumber="278">
While the stout G1 ending in triangular apex in the Chen’s species is similar to that of 
<taxonomicName id="4C6474E19333B513CC8CFC96FE65FC97" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[409,511,853,879]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CC8CFC96FE65FC97" box="[409,511,853,879]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
, the main distinguishing feature of 
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<emphasis id="B910D3709333B513CDFAFCB6FEF1FC77" box="[239,363,886,911]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
was related to the smooth dorsal margins of the P2 and P3 meri, except for a few low teeth on the basal part of the P2 merus and one or two on the P3 merus (
<figureCitation id="135F13E79333B513CD99FC14FEB7FC17" box="[140,301,980,1007]" captionStart="FIG" captionStartId="54.[132,143,965,983]" captionTargetBox="[132,1455,214,919]" captionTargetId="figure-553@54.[698,1267,211,745]" captionTargetPageId="54" captionText="FIG. 23. — Medorippinae n. subfam.: A, B,?Medorippe crosnieri Chen, 1988. Mozambique Channel, MAINBAZA Expedition: A, ♂ 21.1 × 25.9 mm, CP 3132, MNHN-IU-2009-1998, with dimorphic chelipeds; B, young ♂ 12.0 × 15.0 mm, CP 3130, MNHN-IU-2009-1999, with symmetrical chelipeds. Photos courtesy of T.-Y.Chan.C, Medorippe lanata (Linnaeus,1767),♂ 23.2 × 28.9 mm,no data,ZRC 2009.0412 (ex MNHN):P2 merus with spinulated dorsal margin;D,?Medorippe crosnieri Chen, 1988, ♂ 21.1 × 25.9 mm, same data as in A (MNHN-IU-2009-1998): P2 merus with smooth dorsal margin.Photographs made by S. Soubzmaigne." figureDoi="http://doi.org/10.5281/zenodo.8071311" httpUri="https://zenodo.org/record/8071311/files/figure.png" pageId="55" pageNumber="278">Fig. 23A, B, D</figureCitation>
), instead of the distinctly spinulated meri of 
<taxonomicName id="4C6474E19333B513CD91FC35FF70FBF6" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[132,234,1012,1038]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CD91FC35FF70FBF6" box="[132,234,1012,1038]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
(
<figureCitation id="135F13E79333B513CDE3FC34FEECFBF7" box="[246,374,1012,1039]" captionStart="FIG" captionStartId="53.[133,144,1771,1789]" captionTargetBox="[132,1455,215,1727]" captionTargetId="figure-84@53.[698,1267,782,1351]" captionTargetPageId="53" captionText="FIG. 22. — Medorippinae n. subfam. Medorippe lanata (Linnaeus, 1767): A, ♂ 18.5 × 23.2 mm, Dahomey Coasts, ZRC 2009.0411: habitus; B, ovigerous ♀ 21.2 × 27.7 mm, Israel, ZRC 1999.0632: habitus; C-E, ♂ 18.5 × 23.2 mm, same data as A: C, anterior ventral view; D, thoracic sternum, press-button and G1; E, G1 and G2. F, ♂ 23.2 × 28.9 mm, no data, ZRC 2009.0412 (ex MNHN): thoracic sternum with pleon." figureDoi="http://doi.org/10.5281/zenodo.8071309" httpUri="https://zenodo.org/record/8071309/files/figure.png" pageId="55" pageNumber="278">Figs 22A, B</figureCitation>
; 
<figureCitation id="135F13E79333B513CC95FC35FE28FBF7" box="[384,434,1013,1039]" captionStart="FIG" captionStartId="54.[132,143,965,983]" captionTargetBox="[132,1455,214,919]" captionTargetId="figure-553@54.[698,1267,211,745]" captionTargetPageId="54" captionText="FIG. 23. — Medorippinae n. subfam.: A, B,?Medorippe crosnieri Chen, 1988. Mozambique Channel, MAINBAZA Expedition: A, ♂ 21.1 × 25.9 mm, CP 3132, MNHN-IU-2009-1998, with dimorphic chelipeds; B, young ♂ 12.0 × 15.0 mm, CP 3130, MNHN-IU-2009-1999, with symmetrical chelipeds. Photos courtesy of T.-Y.Chan.C, Medorippe lanata (Linnaeus,1767),♂ 23.2 × 28.9 mm,no data,ZRC 2009.0412 (ex MNHN):P2 merus with spinulated dorsal margin;D,?Medorippe crosnieri Chen, 1988, ♂ 21.1 × 25.9 mm, same data as in A (MNHN-IU-2009-1998): P2 merus with smooth dorsal margin.Photographs made by S. Soubzmaigne." figureDoi="http://doi.org/10.5281/zenodo.8071311" httpUri="https://zenodo.org/record/8071311/files/figure.png" pageId="55" pageNumber="278">23C</figureCitation>
). Additional differences were: in 
<taxonomicName id="4C6474E19333B513CD96FBD5FF67FBD6" authorityName="Chen" authorityYear="1988" box="[131,253,1045,1070]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CD96FBD5FF67FBD6" box="[131,253,1045,1070]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
body with short thin hairs (versus with club hairs in 
<taxonomicName id="4C6474E19333B513CDB4FBF5FE93FBB6" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[161,265,1076,1102]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CDB4FBF5FE93FBB6" box="[161,265,1076,1102]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
); carapace surface with less prominent granules and tubercles in 
<taxonomicName id="4C6474E19333B513CC23FB95FE29FB96" authorityName="Chen" authorityYear="1988" box="[310,435,1109,1134]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CC23FB95FE29FB96" box="[310,435,1109,1134]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
than in 
<taxonomicName id="4C6474E19333B513CF1AFB95FDEDFB96" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[527,631,1108,1134]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CF1AFB95FDEDFB96" box="[527,631,1108,1134]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
; and the surface of the male pleon not densely covered with short hairs (versus densely covered with rather long hairs in 
<taxonomicName id="4C6474E19333B513CF9BFB55FD6DFB56" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[654,759,1172,1198]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CF9BFB55FD6DFB56" box="[654,759,1172,1198]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="8BDB0F629333B513CD8EFB74FD9AF934" blockId="55.[130,777,215,2028]" pageId="55" pageNumber="278">
Two specimens of 
<taxonomicName id="4C6474E19333B513CC49FB74FE50FB36" authorityName="Manning &amp; Holthuis" authorityYear="1981" box="[348,458,1204,1230]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="genus">
<emphasis id="B910D3709333B513CC49FB74FE50FB36" box="[348,458,1204,1230]" italics="true" pageId="55" pageNumber="278">Medorippe</emphasis>
</taxonomicName>
from the 
<collectingCountry id="F3734FF29333B513CF3AFB74FD27FB36" box="[559,701,1204,1230]" name="Mozambique" pageId="55" pageNumber="278">Mozambique</collectingCountry>
Channel were collected by the MAINBAZA Expedition in 2009 (MNHN-IU-2016-1335 and MNHN-IU-2016-1336), a male 21.1 × 
<quantity id="4C9CA2879333B513CDD9FAD3FEB5FAD6" box="[204,303,1299,1326]" metricMagnitude="-2" metricUnit="m" metricValue="2.59" pageId="55" pageNumber="278" unit="mm" value="25.9">25.9 mm</quantity>
with dimorphic chelipeds and a young male 12.0 × 15.0 mm with symmetrical chelipeds, both having smooth meri on P2 and P3, which are long and cylindrical in the young (
<figureCitation id="135F13E79333B513CC0DFAB3FEECFA75" box="[280,374,1395,1421]" captionStart="FIG" captionStartId="54.[132,143,965,983]" captionTargetBox="[132,1455,214,919]" captionTargetId="figure-553@54.[698,1267,211,745]" captionTargetPageId="54" captionText="FIG. 23. — Medorippinae n. subfam.: A, B,?Medorippe crosnieri Chen, 1988. Mozambique Channel, MAINBAZA Expedition: A, ♂ 21.1 × 25.9 mm, CP 3132, MNHN-IU-2009-1998, with dimorphic chelipeds; B, young ♂ 12.0 × 15.0 mm, CP 3130, MNHN-IU-2009-1999, with symmetrical chelipeds. Photos courtesy of T.-Y.Chan.C, Medorippe lanata (Linnaeus,1767),♂ 23.2 × 28.9 mm,no data,ZRC 2009.0412 (ex MNHN):P2 merus with spinulated dorsal margin;D,?Medorippe crosnieri Chen, 1988, ♂ 21.1 × 25.9 mm, same data as in A (MNHN-IU-2009-1998): P2 merus with smooth dorsal margin.Photographs made by S. Soubzmaigne." figureDoi="http://doi.org/10.5281/zenodo.8071311" httpUri="https://zenodo.org/record/8071311/files/figure.png" pageId="55" pageNumber="278">Fig.23B</figureCitation>
), shorter and more robust in the adult (
<figureCitation id="135F13E79333B513CD9FFA53FF6AFA55" box="[138,240,1427,1453]" captionStart="FIG" captionStartId="54.[132,143,965,983]" captionTargetBox="[132,1455,214,919]" captionTargetId="figure-553@54.[698,1267,211,745]" captionTargetPageId="54" captionText="FIG. 23. — Medorippinae n. subfam.: A, B,?Medorippe crosnieri Chen, 1988. Mozambique Channel, MAINBAZA Expedition: A, ♂ 21.1 × 25.9 mm, CP 3132, MNHN-IU-2009-1998, with dimorphic chelipeds; B, young ♂ 12.0 × 15.0 mm, CP 3130, MNHN-IU-2009-1999, with symmetrical chelipeds. Photos courtesy of T.-Y.Chan.C, Medorippe lanata (Linnaeus,1767),♂ 23.2 × 28.9 mm,no data,ZRC 2009.0412 (ex MNHN):P2 merus with spinulated dorsal margin;D,?Medorippe crosnieri Chen, 1988, ♂ 21.1 × 25.9 mm, same data as in A (MNHN-IU-2009-1998): P2 merus with smooth dorsal margin.Photographs made by S. Soubzmaigne." figureDoi="http://doi.org/10.5281/zenodo.8071311" httpUri="https://zenodo.org/record/8071311/files/figure.png" pageId="55" pageNumber="278">Fig. 23A</figureCitation>
). Both are related to 
<taxonomicName id="4C6474E19333B513CCC0FA54FDC8FA55" authorityName="Chen" authorityYear="1988" box="[469,594,1428,1453]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CCC0FA54FDC8FA55" box="[469,594,1428,1453]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
by their smooth P2 and P3 meri. Our 
<figureCitation id="135F13E79333B513CC7AFA73FD97FA35" box="[367,525,1459,1485]" captionStart="FIG" captionStartId="54.[132,143,965,983]" captionTargetBox="[132,1455,214,919]" captionTargetId="figure-553@54.[698,1267,211,745]" captionTargetPageId="54" captionText="FIG. 23. — Medorippinae n. subfam.: A, B,?Medorippe crosnieri Chen, 1988. Mozambique Channel, MAINBAZA Expedition: A, ♂ 21.1 × 25.9 mm, CP 3132, MNHN-IU-2009-1998, with dimorphic chelipeds; B, young ♂ 12.0 × 15.0 mm, CP 3130, MNHN-IU-2009-1999, with symmetrical chelipeds. Photos courtesy of T.-Y.Chan.C, Medorippe lanata (Linnaeus,1767),♂ 23.2 × 28.9 mm,no data,ZRC 2009.0412 (ex MNHN):P2 merus with spinulated dorsal margin;D,?Medorippe crosnieri Chen, 1988, ♂ 21.1 × 25.9 mm, same data as in A (MNHN-IU-2009-1998): P2 merus with smooth dorsal margin.Photographs made by S. Soubzmaigne." figureDoi="http://doi.org/10.5281/zenodo.8071311" httpUri="https://zenodo.org/record/8071311/files/figure.png" pageId="55" pageNumber="278">Figure 23C, D</figureCitation>
seems to show that the merus is proportionally more elongated in 
<taxonomicName id="4C6474E19333B513CF59FA14FD2EFA15" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[588,692,1491,1517]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CF59FA14FD2EFA15" box="[588,692,1491,1517]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
than in 
<taxonomicName id="4C6474E19333B513CD96FA33FE98F9F4" authorityName="Chen" authorityYear="1988" box="[131,258,1523,1548]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CD96FA33FE98F9F4" box="[131,258,1523,1548]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
but this criterion must be used with prudence as the size of the merus varies with age, becoming wider and stouter when the individual grows. It seemed possible that this material from 
<collectingCountry id="F3734FF29333B513CC4EF992FE74F994" box="[347,494,1618,1644]" name="Mozambique" pageId="55" pageNumber="278">Mozambique</collectingCountry>
belonged to 
<taxonomicName id="4C6474E19333B513CF91F993FC9CF994" authorityName="Chen" authorityYear="1988" box="[644,774,1619,1644]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CF91F993FC9CF994" box="[644,774,1619,1644]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
and that the refutation by Holthuis &amp; Manning (1990) of the characters used by 
<bibRefCitation id="EFF572939333B513CC96F952FD88F954" author="Chen" box="[387,530,1682,1708]" firstAuthor="Chen" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen (1988)</bibRefCitation>
to distinguish it from 
<taxonomicName id="4C6474E19333B513CD93F973FF75F934" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[134,239,1714,1740]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CD93F973FF75F934" box="[134,239,1714,1740]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
needs to be re-evaluated.
</paragraph>
<paragraph id="8BDB0F629333B513CD8EF912FBDAFE09" blockId="55.[130,777,215,2028]" lastBlockId="55.[810,1457,215,2028]" pageId="55" pageNumber="278">
It should be noted that Holthuis &amp; Manning (1990: 89, fig. 37b) assigned to 
<taxonomicName id="4C6474E19333B513CC4BF933FE5FF8F4" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[350,453,1778,1804]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CC4BF933FE5FF8F4" box="[350,453,1778,1804]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
a male from 
<collectingCountry id="F3734FF29333B513CF59F932FD40F8F4" box="[588,730,1778,1804]" name="Mozambique" pageId="55" pageNumber="278">Mozambique</collectingCountry>
and several South African specimens, the latter being figured with spinulated meri. 
<bibRefCitation id="EFF572939333B513CC28F8F1FE57F8B4" author="Chen" box="[317,461,1841,1868]" firstAuthor="Chen" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen (1988)</bibRefCitation>
added as possible synonyms of her 
<taxonomicName id="4C6474E19333B513CDD8F892FED3F893" authorityName="Chen" authorityYear="1988" box="[205,329,1874,1899]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CDD8F892FED3F893" box="[205,329,1874,1899]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
some 
<taxonomicName id="4C6474E19333B513CC85F892FDB1F893" authorityName="Gemmellaro" authorityYear="1914" box="[400,555,1873,1899]" class="Malacostraca" family="Dorippidae" genus="Dorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CC85F892FDB1F893" box="[400,555,1873,1899]" italics="true" pageId="55" pageNumber="278">Dorippe lanata</emphasis>
</taxonomicName>
of the literature, including that of 
<bibRefCitation id="EFF572939333B513CC3FF8B1FD99F873" author="Barnard" box="[298,515,1905,1932]" firstAuthor="Barnard" page="389" pageId="55" pageNumber="278" pagination="1 - 837" refId="ref109826" refString="BARNARD K. H. 1950. - Descriptive catalogue of South African decapod Crustacea (crabs and shrimps). Annals of the South African Museum 38: 1 - 837. https: // biodiversitylibrary. org / page / 40853502" type="journal article" year="1950">Barnard (1950: 389</bibRefCitation>
, fig. 73d; 1955: 4) from 
<collectingCountry id="F3734FF29333B513CD91F851FE89F853" box="[132,275,1937,1963]" name="South Africa" pageId="55" pageNumber="278">South Africa</collectingCountry>
(Natal). The material from 
<collectingCountry id="F3734FF29333B513CF40F851FC99F853" box="[597,771,1937,1963]" name="Western Sahara" pageId="55" pageNumber="278">Spanish Sahara</collectingCountry>
, 
<collectingCountry id="F3734FF29333B513CD93F871FE8BF834" box="[134,273,1969,1996]" name="Sierra Leone" pageId="55" pageNumber="278">Sierra Leone</collectingCountry>
, 
<collectingCountry id="F3734FF29333B513CC08F871FEF0F833" box="[285,362,1969,1995]" name="Gabon" pageId="55" pageNumber="278">Gabon</collectingCountry>
, 
<collectingCountry id="F3734FF29333B513CC63F871FE48F833" box="[374,466,1969,1995]" name="Angola" pageId="55" pageNumber="278">Cabinda</collectingCountry>
and 
<collectingCountry id="F3734FF29333B513CF1FF871FDCEF833" box="[522,596,1969,1995]" name="Democratic Republic of the Congo" pageId="55" pageNumber="278">Congo</collectingCountry>
reported by 
<bibRefCitation id="EFF572939333B513CFF4F871FE9CF814" author="Capart" firstAuthor="Capart" pageId="55" pageNumber="278" pagination="11 - 205" refId="ref111846" refString="CAPART A. 1951 b. - Crustaces Decapodes Brachyures, in Expedition oceanographique Belge dans les eaux cotieres africaines de l'Atlantique Sud (1948 - 1949). Resultats Scientifiques 3 (1). Institut Royal des Sciences Naturelles de Belgique, Bruxelles: 11 - 205." type="book chapter" year="1951" yearSuffix="b">Capart (1951b</bibRefCitation>
: fig. 6, as 
<taxonomicName id="4C6474E19333B513CC60F812FD89F813" authorityName="Gemmellaro" authorityYear="1914" box="[373,531,2001,2027]" class="Malacostraca" family="Dorippidae" genus="Dorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CC60F812FD89F813" box="[373,531,2001,2027]" italics="true" pageId="55" pageNumber="278">Dorippe lanata</emphasis>
</taxonomicName>
) has spines on the P2, P3 meri, a V-shaped cardiac region, and a G1 distally curved at right angle. As the southern limit of 
<taxonomicName id="4C6474E19333B513C9A9FF37FAF5FEE9" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[1212,1391,247,273]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513C9A9FF37FAF5FEE9" box="[1212,1391,247,273]" italics="true" pageId="55" pageNumber="278">Medorippe lanata</emphasis>
</taxonomicName>
along the West African coast includes 
<collectingCountry id="F3734FF29333B513C96DFED7FB5EFEC9" box="[1144,1220,279,305]" name="Angola" pageId="55" pageNumber="278">Angola</collectingCountry>
with a reasonable certainty (
<bibRefCitation id="EFF572939333B513CE6FFEF7FB8CFEA9" author="Crosnier" box="[890,1046,311,337]" firstAuthor="Crosnier" pageId="55" pageNumber="278" pagination="1214 - 1227" refId="ref114464" refString="CROSNIER A. 1970. - Crustaces Decapodes brachyoures et macroures recueillis par 1 ' &quot; Undaunted &quot; au sud de l'Angola: description de Scyllarus subarctus sp. nov. Bulletin du Museum national d'Histoire naturelle 2 e serie 41 (5) [1969]: 1214 - 1227. https: // www. biodiversitylibrary. org / page / 55600202" type="journal article" year="1970">Crosnier 1970</bibRefCitation>
), it is relevant to consider the material recorded in South Atlantic waters. 
<bibRefCitation id="EFF572939333B513C988FE97FAE0FE89" author="Barnard" box="[1181,1402,343,370]" firstAuthor="Barnard" page="389" pageId="55" pageNumber="278" pagination="1 - 837" refId="ref109826" refString="BARNARD K. H. 1950. - Descriptive catalogue of South African decapod Crustacea (crabs and shrimps). Annals of the South African Museum 38: 1 - 837. https: // biodiversitylibrary. org / page / 40853502" type="journal article" year="1950">Barnard (1950: 389)</bibRefCitation>
does indicate that P2 and P3 have spinulose meri. We have examined a few specimens from 
<collectingCountry id="F3734FF29333B513C949FE56FB7DFE48" box="[1116,1255,406,432]" name="South Africa" pageId="55" pageNumber="278">South Africa</collectingCountry>
(ZRC 2012.0158 and MNHN-IU-2016-1336): they have spinulose meri and are most likely 
<taxonomicName id="4C6474E19333B513CEC5FE17FBA3FE08" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[976,1081,470,496]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CEC5FE17FBA3FE08" box="[976,1081,470,496]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BDB0F629333B513CE56FE36FB7CFBD6" blockId="55.[810,1457,215,2028]" pageId="55" pageNumber="278">
<taxonomicName id="4C6474E19333B513CE56FE36FABDFDE8" authority="Manning &amp; Holthuis, 1986" authorityName=": Manning &amp; Holthuis" authorityYear="1986" box="[835,1319,502,528]" class="Malacostraca" family="Dorippidae" genus="Dorippoides" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="nudipes">
<emphasis id="B910D3709333B513CE56FE36FB92FDE8" box="[835,1032,502,528]" italics="true" pageId="55" pageNumber="278">Dorippoides nudipes</emphasis>
<bibRefCitation id="EFF572939333B513C919FE36FABDFDE8" author="Manning &amp; Holthuis" box="[1036,1319,502,528]" firstAuthor="Manning" pageId="55" pageNumber="278" pagination="363 - 365" refId="ref131244" refString="MANNING R. B. &amp; HOLTHUIS L. B. 1986. - Preliminary descriptions of four new species of dorippid crabs from the Indo-west Pacific region (Crustacea: Decapoda: Brachyura). Proceedings of the biological Society of Washington 99 (2): 363 - 365." type="journal article" year="1986">Manning &amp; Holthuis, 1986</bibRefCitation>
</taxonomicName>
(
<bibRefCitation id="EFF572939333B513C821FE36FB9EFDC8" author="Manning &amp; Holthuis" firstAuthor="Manning" page="364" pageId="55" pageNumber="278" pagination="363 - 365" refId="ref131244" refString="MANNING R. B. &amp; HOLTHUIS L. B. 1986. - Preliminary descriptions of four new species of dorippid crabs from the Indo-west Pacific region (Crustacea: Decapoda: Brachyura). Proceedings of the biological Society of Washington 99 (2): 363 - 365." type="journal article" year="1986">Manning &amp; Holthuis 1986: 364</bibRefCitation>
, fig. 1c; Holthuis &amp; Manning 1990: 66, fig. 26) is another dorippid with unarmed P2 and P3 meri, which occurs in 
<collectingCountry id="F3734FF29333B513CEC1FD96FBCCFD88" box="[980,1110,598,624]" name="South Africa" pageId="55" pageNumber="278">South Africa</collectingCountry>
(see under 
<taxonomicName id="4C6474E19333B513C9DCFD96FAFEFD88" authority="Guinot, 2023" authorityName="Guinot" authorityYear="2023" box="[1225,1380,598,624]" class="Malacostraca" family="Dorippidae" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="subFamily" status="n. subfam." subFamily="Dorippoidinae">Dorippoidinae</taxonomicName>
<taxonomicNameLabel id="A2236E0B9333B513C87CFD96FCF8FD68" pageId="55" pageNumber="278" rank="subFamily">n. subfam.</taxonomicNameLabel>
): it cannot be confused with a 
<taxonomicName id="4C6474E19333B513C9BCFDB6FAFDFD68" box="[1193,1383,630,656]" pageId="55" pageNumber="278">
<emphasis id="B910D3709333B513C9BCFDB6FA8DFD68" box="[1193,1303,630,656]" italics="true" pageId="55" pageNumber="278">Medorippe</emphasis>
species
</taxonomicName>
on account of its short G1 ending in horn-coloured projection with a twisted whip-like appendage, the carapace margin lacking epibranchial spine and the cardiac region without a V-shaped ridge (
<figureCitation id="135F13E79333B513CE7AFD35FC6CFCF7" box="[879,1014,757,783]" captionStart="FIG" captionStartId="40.[133,144,1271,1289]" captionTargetBox="[135,1455,216,1229]" captionTargetId="figure-454@40.[135,1462,216,1233]" captionTargetPageId="40" captionText="FIG. 16. — Dorippoidinae n. subfam.: A, B, Dorippoides facchino (Herbst, 1785): A, ♂ 25.3 × 32 mm, Malaysia, Johore, Pontian, ZRC 1991.66-72; B, ovigerous ♀ 20.3 × 26.2 mm, South China Sea, Hee Huat, ZRC 1984.5347; C, D, Dorippoides nudipes Manning &amp; Holthuis,1986: C, ♂ 16.2 × 19.4 mm, Iran,ZRC 2017.1227; D, ♀ 21.6 × 29.5 mm, South Africa, vicinity of Tugela River mouth, ZRC 2009.0885." figureDoi="http://doi.org/10.5281/zenodo.8071293" httpUri="https://zenodo.org/record/8071293/files/figure.png" pageId="55" pageNumber="278">Fig. 16C, D</figureCitation>
). Similarly, 
<taxonomicName id="4C6474E19333B513C960FD35FAA5FCF7" authorityName="Chen" authorityYear="1988" box="[1141,1343,757,783]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513C960FD35FAA5FCF7" box="[1141,1343,757,783]" italics="true" pageId="55" pageNumber="278">Medorippe crosnieri</emphasis>
</taxonomicName>
cannot be confused with the West-African 
<taxonomicName id="4C6474E19333B513C968FCD5FAC3FCD7" baseAuthorityName="Miers" baseAuthorityYear="1881" box="[1149,1369,789,815]" class="Malacostraca" family="Dorippidae" genus="Phyllodorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="armata">
<emphasis id="B910D3709333B513C968FCD5FAC3FCD7" box="[1149,1369,789,815]" italics="true" pageId="55" pageNumber="278">Phyllodorippe armata</emphasis>
</taxonomicName>
, known from the 
<collectingCountry id="F3734FF29333B513CE99FCF5FBB0FCB7" box="[908,1066,821,847]" name="Western Sahara" pageId="55" pageNumber="278">Spanish Sahara</collectingCountry>
to 
<collectingCountry id="F3734FF29333B513C95FFCF5FB0FFCB7" box="[1098,1173,821,847]" name="Angola" pageId="55" pageNumber="278">Angola</collectingCountry>
and never recorded further south, which also has unarmed P2 and P3 meri (
<figureCitation id="135F13E79333B513C83FFC95FA3DFC97" box="[1322,1447,853,879]" captionStart="FIG" captionStartId="66.[133,144,1812,1830]" captionTargetBox="[137,1452,216,1769]" captionTargetId="figure-83@66.[128,1451,215,1820]" captionTargetPageId="66" captionText="FIG. 29. — Phyllodorippinae n. subfam. Phyllodorippe armata (Miers, 1881), Guinean Trawling Survey,ZRC 2009.0413 (ex MNHN-B24202). A, ♂ 12.3 × 16.2 mm, habitus; B-D, ovigerous ♀ 11.9 × 16.6 mm. B, habitus; C, thoracic sternum and pleon; D, thoracic sternum, vulvae and spine on sternite 8." figureDoi="http://doi.org/10.5281/zenodo.8071325" httpUri="https://zenodo.org/record/8071325/files/figure.png" pageId="55" pageNumber="278">Fig. 29A, B</figureCitation>
) and a slender, S-shaped G1 ending in a prominent subdistal lobe (
<figureCitation id="135F13E79333B513CE79FC55FC63FC57" box="[876,1017,917,943]" captionStart="FIG" captionStartId="67.[132,143,1181,1199]" captionTargetBox="[132,1455,215,1139]" captionTargetId="figure-379@67.[132,1455,215,1139]" captionTargetPageId="67" captionText="FIG. 30. — Phyllodorippinae n. subfam. Phyllodorippe armata (Miers, 1881), ♂ 12.3 × 16.2 mm, Guinean Trawling Survey, ZRC 2009.0413 (ex MNHN-B24202): A, both chelae; B, thoracic sternum and pleon; C, thoracic sternum without pleon; D, G1 and press-buttons." figureDoi="http://doi.org/10.5281/zenodo.8071327" httpUri="https://zenodo.org/record/8071327/files/figure.png" pageId="55" pageNumber="278">Fig. 30C, D</figureCitation>
) (
<bibRefCitation id="EFF572939333B513C906FC55FB2DFC57" author="Monod" box="[1043,1207,917,943]" firstAuthor="Monod" pageId="55" pageNumber="278" pagination="456 - 548" refId="ref133410" refString="MONOD T. 1933 b. - Sur quelques Crustaces de l'Afrique ̿ ccidentale. (Liste des Decapodes mauritaniens et des Xanthides ouest-africains). Bulletin du Comite d'Etudes historiques et scientifques de l'Afrique Occidentale francaise 15 (2, 3) [1932]: 456 - 548 [p. 1 - 93 in reprint]." type="journal article" year="1933" yearSuffix="b">Monod 1933b</bibRefCitation>
: fig. 3H; 
<bibRefCitation id="EFF572939333B513C83CFC55FC51FC37" author="Manning &amp; Holthuis" firstAuthor="Manning" pageId="55" pageNumber="278" pagination="13 - 379" refId="ref131208" refString="MANNING R. B. &amp; HOLTHUIS L. B. 1981. - West African brachyuran crabs (Crustacea: Decapoda). Smithsonian Contributions to Zoology 306: i-xii, 13 - 379." type="journal article" year="1981">Manning &amp; Holthuis 1981</bibRefCitation>
: fig. 4k, l), contrasting with the typical short, stout G1 of 
<taxonomicName id="4C6474E19333B513CEB3FC14FB8BFC16" authorityName="Manning &amp; Holthuis" authorityYear="1981" box="[934,1041,980,1006]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="genus">
<emphasis id="B910D3709333B513CEB3FC14FB8BFC16" box="[934,1041,980,1006]" italics="true" pageId="55" pageNumber="278">Medorippe</emphasis>
</taxonomicName>
, abruptly turned outward and ending in a long, sharp setiferous apex (
<bibRefCitation id="EFF572939333B513C977FC34FB46FBF7" author="Chen" box="[1122,1244,1012,1039]" firstAuthor="Chen" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen 1988</bibRefCitation>
: fig. 2f; reproduced by Holthuis &amp; Manning 1990: fig. 
<quantity id="4C9CA2879333B513C9B8FBD4FB40FBD6" box="[1197,1242,1044,1070]" metricMagnitude="-2" metricUnit="kg" metricValue="3.8" pageId="55" pageNumber="278" unit="g" value="38.0">38g</quantity>
).
</paragraph>
<paragraph id="8BDB0F629333B513CE56FBF5FA05F974" blockId="55.[810,1457,215,2028]" pageId="55" pageNumber="278">
It proved difficult to conclude the value of the small differences reported by 
<bibRefCitation id="EFF572939333B513C91DFB94FB11FB96" author="Chen" box="[1032,1163,1108,1134]" firstAuthor="Chen" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen (1988</bibRefCitation>
: table 2) due to insufficient material in hand assignable to 
<taxonomicName id="4C6474E19333B513C99AFBB5FA8EFB76" authorityName="Chen" authorityYear="1988" box="[1167,1300,1141,1166]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513C99AFBB5FA8EFB76" box="[1167,1300,1141,1166]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
. In addition, examination of 
<taxonomicName id="4C6474E19333B513CEC8FB55FBD2FB56" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[989,1096,1172,1198]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CEC8FB55FBD2FB56" box="[989,1096,1172,1198]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
revealed a range of morphological variation (variations that also exist in the Mediterranean form), including spinulation of meri P2 and P3 that was more pronounced in smaller individuals and tended to decrease in larger adult males, particularly in the proximal half of the merus. Spinulation may also occasionally be missing completely, e.g. in a sample from the north of mouth of 
<collectingCountry id="F3734FF29333B513C870FA93FA35FA95" box="[1381,1455,1363,1389]" name="Democratic Republic of the Congo" pageId="55" pageNumber="278">Congo</collectingCountry>
River, MNHN-IU-2009-2001 (= MNHN-B13583), a large male 26.0 × 30.0 mm (with markedly asymmetrical chelae) that has abnormally smooth meri P2, P3; in contrast, another adult male of 
<quantity id="4C9CA2879333B513CEAFFA13FB86FA15" box="[954,1052,1491,1517]" metricMagnitude="-2" metricUnit="m" metricValue="2.82" pageId="55" pageNumber="278" unit="mm" value="28.2">28.2 mm</quantity>
cw (with less asymmetrical chelas) has spinulated meri, both specimens showing the typical G1 of 
<emphasis id="B910D3709333B513CE38F9D2FC38F9D4" box="[813,930,1554,1580]" italics="true" pageId="55" pageNumber="278">
<taxonomicName id="4C6474E19333B513CE38F9D2FC04F9D4" authorityName="Manning &amp; Holthuis" authorityYear="1981" box="[813,926,1554,1580]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="genus">Medorippe</taxonomicName>
.
</emphasis>
For more details on the spinulation of P2, P3 meri of 
<taxonomicName id="4C6474E19333B513CE53F9F3FC32F9B4" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[838,936,1586,1612]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513CE53F9F3FC32F9B4" box="[838,936,1586,1612]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
, see 
<bibRefCitation id="EFF572939333B513CEC3F9F2FBEFF9B4" author="Monod" box="[982,1141,1586,1612]" firstAuthor="Monod" pageId="55" pageNumber="278" pagination="456 - 548" refId="ref133410" refString="MONOD T. 1933 b. - Sur quelques Crustaces de l'Afrique ̿ ccidentale. (Liste des Decapodes mauritaniens et des Xanthides ouest-africains). Bulletin du Comite d'Etudes historiques et scientifques de l'Afrique Occidentale francaise 15 (2, 3) [1932]: 456 - 548 [p. 1 - 93 in reprint]." type="journal article" year="1933" yearSuffix="b">Monod (1933b</bibRefCitation>
: fig.3C, D; 1956: 84, fig.103, as 
<taxonomicName id="4C6474E19333B513CE5DF993FC2CF994" baseAuthorityName="Miers" baseAuthorityYear="1881" box="[840,950,1619,1644]" class="Malacostraca" family="Dorippidae" genus="Phyllodorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="armata">
<emphasis id="B910D3709333B513CE5DF993FC2CF994" box="[840,950,1619,1644]" italics="true" pageId="55" pageNumber="278">D. armata</emphasis>
</taxonomicName>
); 
<bibRefCitation id="EFF572939333B513CEDBF992FAB7F994" author="Manning &amp; Holthuis" box="[974,1325,1618,1645]" firstAuthor="Manning" page="32" pageId="55" pageNumber="278" pagination="13 - 379" refId="ref131208" refString="MANNING R. B. &amp; HOLTHUIS L. B. 1981. - West African brachyuran crabs (Crustacea: Decapoda). Smithsonian Contributions to Zoology 306: i-xii, 13 - 379." type="journal article" year="1981">Manning &amp; Holthuis (1981: 32</bibRefCitation>
, figs 4a, c-f, table 1) and Holthuis &amp; Manning (1990: 89, figs 36, 37).
</paragraph>
<paragraph id="8BDB0F629333B513CE56F952FAC5F893" blockId="55.[810,1457,215,2028]" pageId="55" pageNumber="278">
An ovigerous female collected in southern 
<collectingCountry id="F3734FF29333B513C9E0F952FAEAF954" box="[1269,1392,1682,1708]" name="Madagascar" pageId="55" pageNumber="278">Madagascar</collectingCountry>
- thus in proximity to 
<bibRefCitation id="EFF572939333B513CECCF972FBEBF934" author="Chen's" box="[985,1137,1714,1740]" firstAuthor="Chen's" pageId="55" pageNumber="278" pagination="677 - 693" refId="ref112869" refString="CHEN H. 1988. - Dorippidae (Crustacea Decapoda Brachyura) collected in Madagascar waters. Bulletin du Museum national d'Histoire naturelle 4 e serie 9 A (3) [1987]: 677 - 693." type="journal article" year="1988">Chen’s (1988)</bibRefCitation>
<typeStatus id="54DFB1C09333B513C96CF973FB3DF935" box="[1145,1191,1715,1741]" pageId="55" pageNumber="278">type</typeStatus>
series – by the ATIMO VATAE expedition in 2010 (MNHN-IU-2010-4307), which we had not previously examined, shows smooth meri P2, P3, which undermines Holthuis &amp; Manning’s (1990) argument that the smoothness of P2 and P3 is a juvenile character, and leads us to believe that 
<taxonomicName id="4C6474E19333B513C933F892FB38F893" authorityName="Chen" authorityYear="1988" box="[1062,1186,1874,1899]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513C933F892FB38F893" box="[1062,1186,1874,1899]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
is a valid species.
</paragraph>
<paragraph id="8BDB0F629333B51CCE56F8B1FEC4FE89" blockId="55.[810,1457,215,2028]" lastBlockId="56.[132,776,215,369]" lastPageId="56" lastPageNumber="279" pageId="55" pageNumber="278">
Molecular analyses based on the COI carried on by J. C. Y. Lai were inconclusive, showing that the 
<taxonomicName id="4C6474E19333B513C81DF852FAE8F853" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[1288,1394,1937,1963]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D3709333B513C81DF852FAE8F853" box="[1288,1394,1937,1963]" italics="true" pageId="55" pageNumber="278">M. lanata</emphasis>
</taxonomicName>
from 
<collectingCountry id="F3734FF29333B513CE3BF871FC26F833" box="[814,956,1969,1995]" name="South Africa" pageId="55" pageNumber="278">South Africa</collectingCountry>
, with spinulated meri, was genetically almost identical to the 
<taxonomicName id="4C6474E19333B513CECDF812FBCFF813" authorityName="Chen" authorityYear="1988" box="[984,1109,2002,2027]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="55" pageNumber="278" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D3709333B513CECDF812FBCFF813" box="[984,1109,2002,2027]" italics="true" pageId="55" pageNumber="278">M. crosnieri</emphasis>
</taxonomicName>
of the MAINBAZA Expedition in 2009, with smooth meri. The genetic evidence supported that 
<taxonomicName id="4C6474E1933CB51CCDA3FF38FE85FEE9" baseAuthorityName="Linnaeus" baseAuthorityYear="1767" box="[182,287,247,273]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="56" pageNumber="279" phylum="Arthropoda" rank="species" species="lanata">
<emphasis id="B910D370933CB51CCDA3FF38FE85FEE9" box="[182,287,247,273]" italics="true" pageId="56" pageNumber="279">M. lanata</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C6474E1933CB51CCC40FF38FE48FEE9" authorityName="Chen" authorityYear="1988" box="[341,466,248,273]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="56" pageNumber="279" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D370933CB51CCC40FF38FE48FEE9" box="[341,466,248,273]" italics="true" pageId="56" pageNumber="279">M. crosnieri</emphasis>
</taxonomicName>
were closely related with little divergence (&lt;3% divergence), insufficient to revalidate 
<taxonomicName id="4C6474E1933CB51CCD93FEF8FE98FEA9" authorityName="Chen" authorityYear="1988" box="[134,258,312,337]" class="Malacostraca" family="Dorippidae" genus="Medorippe" kingdom="Animalia" order="Decapoda" pageId="56" pageNumber="279" phylum="Arthropoda" rank="species" species="crosnieri">
<emphasis id="B910D370933CB51CCD93FEF8FE98FEA9" box="[134,258,312,337]" italics="true" pageId="56" pageNumber="279">M. crosnieri</emphasis>
</taxonomicName>
, so the planned paper was not published, pending further research.
</paragraph>
</subSubSection>
</treatment>
</document>