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<document id="B28A0666B02ED50C68C4D6C18CC12BF7" ID-DOI="10.11646/zootaxa.5284.2.8" ID-GBIF-Dataset="b4bc4bdf-927c-43d9-ac2b-c39d33137048" ID-ISSN="1175-5326" ID-Zenodo-Dep="7923530" ID-ZooBank="770F88D2-FA38-499B-AC81-61B8BE61992F" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1683787118133" checkinUser="plazi" docAuthor="Ng, Peter K. L. &amp; Tri, Ngo Van" docDate="2023" docId="039387F1FFB93A0BFF2E5F40FC84FC3E" docLanguage="en" docName="zootaxa.5284.2.8.pdf" docOrigin="Zootaxa 5284 (2)" docSource="http://dx.doi.org/10.11646/zootaxa.5284.2.8" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Aiyunamon Pan, Ng &amp; Sun 2022" docType="treatment" docVersion="2" lastPageNumber="370" masterDocId="FFAAFF89FFBC3A0DFFB95804FFC4FFBF" masterDocTitle="Two new species of semiaquatic freshwater crabs of the genera Tortomon and Aiyunamon from karst forests in northern Vietnam (Crustacea: Brachyura: Potamidae)" masterLastPageNumber="376" masterPageNumber="364" pageNumber="369" updateTime="1683787784201" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="1CE6737E40F1BD770D6EC03A9A7452DB">Two new species of semiaquatic freshwater crabs of the genera Tortomon and Aiyunamon from karst forests in northern Vietnam (Crustacea: Brachyura: Potamidae)</mods:title>
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<mods:namePart id="DAF6505A310271AFBF3F680202E26873">Ng, Peter K. L.</mods:namePart>
<mods:affiliation id="FF85D343B74539AF83C2741B0E5FD92A">Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore.</mods:affiliation>
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<mods:namePart id="E7FB35F27C737703AB663BDEDF9B960E">Tri, Ngo Van</mods:namePart>
<mods:affiliation id="39EB737C0AA04CACEA871EA8146BC783">National Key Laboratory, Institute of Tropical Biology, Vietnamese Academy of Sciences and Technology, 9 / 621 Hanoi Highway, Thu Duc City, Ho Chi Minh City, Vietnam.</mods:affiliation>
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<subSubSection id="C320656CFFB93A08FF2E5F40FD4DF8E1" box="[151,649,1860,1887]" pageId="5" pageNumber="369" type="nomenclature">
<paragraph id="8B8536E7FFB93A08FF2E5F40FD4DF8E1" blockId="5.[151,649,1860,1887]" box="[151,649,1860,1887]" pageId="5" pageNumber="369">
<heading id="D0CD818BFFB93A08FF2E5F40FD4DF8E1" bold="true" box="[151,649,1860,1887]" fontSize="11" level="1" pageId="5" pageNumber="369" reason="1">
<emphasis id="B94EEAF5FFB93A08FF2E5F40FD4DF8E1" bold="true" box="[151,649,1860,1887]" pageId="5" pageNumber="369">
Genus
<taxonomicName id="4C3A4D64FFB93A08FF575F41FD4DF8E1" ID-CoL="9CBF8" authority="Pan, Ng &amp; Sun, 2022" authorityName="Pan, Ng &amp; Sun" authorityYear="2022" box="[238,649,1860,1887]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="369" phylum="Arthropoda" rank="genus">
<emphasis id="B94EEAF5FFB93A08FF575F41FEB8F8E0" bold="true" box="[238,380,1861,1887]" italics="true" pageId="5" pageNumber="369">Aiyunamon</emphasis>
<bibRefCitation id="EFAB4B16FFB93A08FE3D5F41FD4DF8E1" author="Pan, D. &amp; Ng, P. K. L. &amp; Sun, H." box="[388,649,1860,1887]" pageId="5" pageNumber="369" pagination="320 - 328" refId="ref5859" refString="Pan, D., Ng, P. K. L. &amp; Sun, H. (2022) Aiyunamon, a new genus for southern Chinese potamid species previously placed in Eosamon Yeo &amp; Ng, 2007 (Decapoda, Brachyura, Potamidae). Raffles Bulletin of Zoology, 70, 320 - 328." type="journal article" year="2022">Pan, Ng &amp; Sun, 2022</bibRefCitation>
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C320656CFFB93A08FF2E5F8DFB61F81E" box="[151,1189,1929,1953]" pageId="5" pageNumber="369" type="type_taxon">
<paragraph id="8B8536E7FFB93A08FF2E5F8DFB61F81E" blockId="5.[151,1189,1929,1953]" box="[151,1189,1929,1953]" pageId="5" pageNumber="369">
<emphasis id="B94EEAF5FFB93A08FF2E5F8DFEDAF81E" bold="true" box="[151,286,1929,1953]" pageId="5" pageNumber="369">
<typeStatus id="54818845FFB93A08FF2E5F8DFF08F81E" box="[151,204,1929,1953]" pageId="5" pageNumber="369">Type</typeStatus>
species
</emphasis>
.
<taxonomicName id="4C3A4D64FFB93A08FE935F8EFD91F81E" authority="Zhang &amp; Sun" authorityName="Zhang &amp; Sun" box="[298,597,1929,1953]" class="Malacostraca" family="Potamidae" genus="Eosamon" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="369" phylum="Arthropoda" rank="species" species="daiae">
<emphasis id="B94EEAF5FFB93A08FE935F8EFE02F81E" box="[298,454,1929,1953]" italics="true" pageId="5" pageNumber="369">Eosamon daiae</emphasis>
Zhang &amp; Sun
</taxonomicName>
<emphasis id="B94EEAF5FFB93A08FDE55F8EFDB4F81E" box="[604,624,1930,1953]" italics="true" pageId="5" pageNumber="369">in</emphasis>
<bibRefCitation id="EFAB4B16FFB93A08FDCF5F8DFC6EF81E" author="Zhang, Z. &amp; Pan, D. &amp; Hao, X. &amp; Sun, H." box="[630,938,1929,1953]" pageId="5" pageNumber="369" pagination="1 - 21" refId="ref6370" refString="Zhang, Z., Pan, D., Hao, X. &amp; Sun, H. (2020) Two new species of freshwater crabs of the genera Eosamon Yeo &amp; Ng, 2007 and Indochinamon Yeo &amp; Ng, 2007 (Crustacea, Brachyura, Potamidae) from southern Yunnan, China. Zookeys, 980, 1 - 21. https: // doi. org / 10.3897 / zookeys. 980.52186" type="journal article" year="2020">Zhang, Pan, Hao &amp; Sun, 2020</bibRefCitation>
, by original designation.
</paragraph>
</subSubSection>
<subSubSection id="C320656CFFB93A0BFF2E5FCBFC84FC3E" lastPageId="6" lastPageNumber="370" pageId="5" pageNumber="369" type="discussion">
<paragraph id="8B8536E7FFB93A0BFF2E5FCBFE66FEFE" blockId="5.[151,1436,1999,2026]" lastBlockId="6.[151,1437,151,897]" lastPageId="6" lastPageNumber="370" pageId="5" pageNumber="369">
<emphasis id="B94EEAF5FFB93A08FF2E5FCBFEC0F856" bold="true" box="[151,260,1999,2025]" pageId="5" pageNumber="369">Remarks</emphasis>
.
<bibRefCitation id="EFAB4B16FFB93A08FEA85FD4FE0EF856" author="Pan, D. &amp; Ng, P. K. L. &amp; Sun, H." box="[273,458,1999,2026]" pageId="5" pageNumber="369" pagination="320 - 328" refId="ref5859" refString="Pan, D., Ng, P. K. L. &amp; Sun, H. (2022) Aiyunamon, a new genus for southern Chinese potamid species previously placed in Eosamon Yeo &amp; Ng, 2007 (Decapoda, Brachyura, Potamidae). Raffles Bulletin of Zoology, 70, 320 - 328." type="journal article" year="2022">
Pan
<emphasis id="B94EEAF5FFB93A08FEF85FD4FEBDF856" box="[321,377,1999,2025]" italics="true" pageId="5" pageNumber="369">et al.</emphasis>
(2022)
</bibRefCitation>
recently argued that four potamid species in
<collectingCountry id="F32D7677FFB93A08FC055FCBFC3BF856" box="[956,1023,1999,2025]" name="China" pageId="5" pageNumber="369">China</collectingCountry>
and
<collectingCountry id="F32D7677FFB93A08FB8D5FD4FB67F855" box="[1076,1187,2000,2026]" name="Myanmar" pageId="5" pageNumber="369">Myanmar</collectingCountry>
, which had previously been placed in
<taxonomicName id="4C3A4D64FFBA3A0BFEFB5893FDAAFF0E" authority="Yeo &amp; Ng, 2007" authorityName="Yeo &amp; Ng" authorityYear="2007" box="[322,622,151,177]" class="Malacostraca" family="Potamidae" genus="Eosamon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="genus">
<emphasis id="B94EEAF5FFBA3A0BFEFB5893FE6EFF0F" box="[322,426,151,176]" italics="true" pageId="6" pageNumber="370">Eosamon</emphasis>
<bibRefCitation id="EFAB4B16FFBA3A0BFE085893FDAAFF0E" author="Yeo, D. C. J. &amp; Ng, P. K. L." box="[433,622,151,177]" pageId="6" pageNumber="370" pagination="273 - 308" refId="ref6318" refString="Yeo, D. C. J. &amp; Ng, P. K. L. (2007) On the genus &quot; Potamon &quot; and allies in Indochina (Crustacea: Decapoda: Brachyura: Potamidae). Raffles Bulletin of Zoology, Supplement 16, 273 - 308." type="journal article" year="2007">Yeo &amp; Ng, 2007</bibRefCitation>
</taxonomicName>
, should be referred to a new genus,
<taxonomicName id="4C3A4D64FFBA3A0BFBBF5893FB42FF0E" authorityName="Pan, Ng &amp; Sun" authorityYear="2022" box="[1030,1158,151,177]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="genus">
<emphasis id="B94EEAF5FFBA3A0BFBBF5893FB42FF0E" box="[1030,1158,151,177]" italics="true" pageId="6" pageNumber="370">Aiyunamon</emphasis>
</taxonomicName>
:
<taxonomicName id="4C3A4D64FFBA3A0BFB2C5893FB37FF0E" box="[1173,1267,151,177]" class="Malacostraca" family="Potamidae" genus="Eosamon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="species" species="daiae">
<emphasis id="B94EEAF5FFBA3A0BFB2C5893FB37FF0E" box="[1173,1267,151,177]" italics="true" pageId="6" pageNumber="370">A. daiae</emphasis>
</taxonomicName>
(Zhang &amp; Sun
<emphasis id="B94EEAF5FFBA3A0BFF2E58BFFF69FF6B" box="[151,173,187,212]" italics="true" pageId="6" pageNumber="370">in</emphasis>
<bibRefCitation id="EFAB4B16FFBA3A0BFF0D58BFFDCCFF6A" author="Zhang, Z. &amp; Pan, D. &amp; Hao, X. &amp; Sun, H." box="[180,520,187,213]" pageId="6" pageNumber="370" pagination="1 - 21" refId="ref6370" refString="Zhang, Z., Pan, D., Hao, X. &amp; Sun, H. (2020) Two new species of freshwater crabs of the genera Eosamon Yeo &amp; Ng, 2007 and Indochinamon Yeo &amp; Ng, 2007 (Crustacea, Brachyura, Potamidae) from southern Yunnan, China. Zookeys, 980, 1 - 21. https: // doi. org / 10.3897 / zookeys. 980.52186" type="journal article" year="2020">Zhang, Pan, Hao &amp; Sun, 2020</bibRefCitation>
),
<taxonomicName id="4C3A4D64FFBA3A0BFDA258BFFC5CFF6A" authority="(Dai &amp; Chen, 1985)" baseAuthorityName="Dai &amp; Chen" baseAuthorityYear="1985" box="[539,920,186,213]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="species" species="lushuiense">
<emphasis id="B94EEAF5FFBA3A0BFDA258BFFD74FF6A" box="[539,688,187,213]" italics="true" pageId="6" pageNumber="370">A. lushuiense</emphasis>
(
<bibRefCitation id="EFAB4B16FFBA3A0BFD0758BFFC4BFF6A" author="Dai, A. - Y. &amp; Chen, G. - X." box="[702,911,186,213]" pageId="6" pageNumber="370" pagination="39 - 72" refId="ref5265" refString="Dai, A. - Y. &amp; Chen, G. - X. (1985) A publication on the freshwater crab fauna of Hengduan Shan District. Sinozoologica, 3, 39 - 72." type="journal article" year="1985">Dai &amp; Chen, 1985</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C3A4D64FFBA3A0BFC1A58BFFA8AFF6A" authority="(Dai &amp; Chen, 1985)" baseAuthorityName="Dai &amp; Chen" baseAuthorityYear="1985" box="[931,1358,186,213]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="species" species="tengchongense">
<emphasis id="B94EEAF5FFBA3A0BFC1A58BFFBACFF6A" box="[931,1128,187,213]" italics="true" pageId="6" pageNumber="370">A. tengchongense</emphasis>
(
<bibRefCitation id="EFAB4B16FFBA3A0BFBCE58BFFA82FF6A" author="Dai, A. - Y. &amp; Chen, G. - X." box="[1143,1350,186,213]" pageId="6" pageNumber="370" pagination="39 - 72" refId="ref5265" refString="Dai, A. - Y. &amp; Chen, G. - X. (1985) A publication on the freshwater crab fauna of Hengduan Shan District. Sinozoologica, 3, 39 - 72." type="journal article" year="1985">Dai &amp; Chen, 1985</bibRefCitation>
)
</taxonomicName>
and
<taxonomicName id="4C3A4D64FFBA3A0BFA3D58BFFE30FF46" authority="(Wood-Mason, 1871)" baseAuthorityName="Wood-Mason" baseAuthorityYear="1871" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="species" species="tumidum">
<emphasis id="B94EEAF5FFBA3A0BFA3D58BFFF3DFF46" italics="true" pageId="6" pageNumber="370">A. tumidum</emphasis>
(
<bibRefCitation id="EFAB4B16FFBA3A0BFEB158DBFE2FFF46" author="Wood-Mason, J." box="[264,491,223,249]" pageId="6" pageNumber="370" pagination="189 - 207" refId="ref6112" refString="Wood-Mason, J. (1871) Contribution to Indian carcinology. Journal of the Asiatic Society of Bengal, 40, 189 - 207 + 449 - 454, pls. 11 - 14 + 27." type="journal article" year="1871">Wood-Mason, 1871</bibRefCitation>
)
</taxonomicName>
.
<bibRefCitation id="EFAB4B16FFBA3A0BFE4758DBFD7DFF46" author="Pan, D. &amp; Sun, H. &amp; Ng, P. K. L." box="[510,697,223,249]" pageId="6" pageNumber="370" pagination="179 - 198" refId="ref5918" refString="Pan, D., Sun, H. &amp; Ng, P. K. L. (2023) The identity of the freshwater crab Aiyunamon tumidum (Wood-Mason, 1871) (Brachyura, Potamidae), with description of a new species from China. Crustaceana, 96 (2), 179 - 198. https: // doi. org / 10.1163 / 15685403 - bja 10276" type="journal article" year="2023">
Pan
<emphasis id="B94EEAF5FFBA3A0BFD9658DBFDACFF46" box="[559,616,223,249]" italics="true" pageId="6" pageNumber="370">et al.</emphasis>
(2023)
</bibRefCitation>
subsequently showed that
<taxonomicName id="4C3A4D64FFBA3A0BFC5E58DBFBACFF46" baseAuthorityName="Wood-Mason" baseAuthorityYear="1871" box="[999,1128,223,249]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="species" species="tumidum">
<emphasis id="B94EEAF5FFBA3A0BFC5E58DBFBACFF46" box="[999,1128,223,249]" italics="true" pageId="6" pageNumber="370">A. tumidum</emphasis>
</taxonomicName>
was a species complex and described a new species from southern
<collectingCountry id="F32D7677FFBA3A0BFDEE5907FD5AFEA2" box="[599,670,259,285]" name="China" pageId="6" pageNumber="370">China</collectingCountry>
. We here add one new species from
<collectingCountry id="F32D7677FFBA3A0BFB845907FB5BFEA2" box="[1085,1183,259,285]" name="Vietnam" pageId="6" pageNumber="370">Vietnam</collectingCountry>
, the first record of the genus from the country.
</paragraph>
<paragraph id="8B8536E7FFBA3A0BFF7E594FFC84FC3E" blockId="6.[151,1437,151,897]" pageId="6" pageNumber="370">
<bibRefCitation id="EFAB4B16FFBA3A0BFF7E594FFE06FEDA" author="Pan, D. &amp; Ng, P. K. L. &amp; Sun, H." box="[199,450,331,357]" pageId="6" pageNumber="370" pagination="320 - 328" refId="ref5859" refString="Pan, D., Ng, P. K. L. &amp; Sun, H. (2022) Aiyunamon, a new genus for southern Chinese potamid species previously placed in Eosamon Yeo &amp; Ng, 2007 (Decapoda, Brachyura, Potamidae). Raffles Bulletin of Zoology, 70, 320 - 328." type="journal article" year="2022">
Pan
<emphasis id="B94EEAF5FFBA3A0BFF43594FFEF0FEDA" box="[250,308,331,357]" italics="true" pageId="6" pageNumber="370">et al.</emphasis>
(2022: 323)
</bibRefCitation>
separated
<taxonomicName id="4C3A4D64FFBA3A0BFD84594FFD79FEDA" authorityName="Pan, Ng &amp; Sun" authorityYear="2022" box="[573,701,331,357]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="genus">
<emphasis id="B94EEAF5FFBA3A0BFD84594FFD79FEDA" box="[573,701,331,357]" italics="true" pageId="6" pageNumber="370">Aiyunamon</emphasis>
</taxonomicName>
from
<taxonomicName id="4C3A4D64FFBA3A0BFCBC594FFCA9FEDB" authorityName="Yeo &amp; Ng" authorityYear="2007" box="[773,877,331,356]" class="Malacostraca" family="Potamidae" genus="Eosamon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="genus">
<emphasis id="B94EEAF5FFBA3A0BFCBC594FFCA9FEDB" box="[773,877,331,356]" italics="true" pageId="6" pageNumber="370">Eosamon</emphasis>
</taxonomicName>
by its postorbital cristae being rugose and lower (versus not sharp and prominent), the external orbital tooth is low and is just separated from the anterolateral margin by shallow cleft (versus external orbital tooth prominent, and separated by a distinct cleft, the epibranchial tooth is low and sometimes barely visible indistinct (versus epibranchial tooth well-developed and sharp, the lateral margins of the male pleon are more or less straight or gently convex (versus male pleon lateral margins slightly concave to sometimes straight), the outer margin of the G1 at the junction of the two segments is distinctly concave (versus margin gently concave), the G1 terminal segment dose not have a visible dorsal flap in ventral view (versus with low, broad dorsal flap), and the anterior margin of the vulva is appressed on the suture of thoracic sternites 5/6, without a clear vulvar cover (versus anterior edge of vulva touching suture of thoracic sternites 5/6, with distinct vulvar cover).
<bibRefCitation id="EFAB4B16FFBA3A0BFE825A8BFDD6FD16" author="Ng, P. K. L. &amp; Clark, P. F." box="[315,530,655,681]" pageId="6" pageNumber="370" pagination="115 - 121" refId="ref5684" refString="Ng, P. K. L. &amp; Clark, P. F. (2022) A new species of Eosamon (Crustacea, Brachyura, Potamidae) described from Bokor, Cambodia. Crustacean Research, 51, 115 - 121. https: // doi. org / 10.18353 / crustacea. 51.0 _ 115" type="journal article" year="2022">Ng &amp; Clark (2022)</bibRefCitation>
, in describing a new species of
<taxonomicName id="4C3A4D64FFBA3A0BFCCA5A8BFC1FFD17" authorityName="Yeo &amp; Ng" authorityYear="2007" box="[883,987,655,680]" class="Malacostraca" family="Potamidae" genus="Eosamon" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="genus">
<emphasis id="B94EEAF5FFBA3A0BFCCA5A8BFC1FFD17" box="[883,987,655,680]" italics="true" pageId="6" pageNumber="370">Eosamon</emphasis>
</taxonomicName>
from
<collectingCountry id="F32D7677FFBA3A0BFBA65A8BFB51FD16" box="[1055,1173,655,681]" name="Cambodia" pageId="6" pageNumber="370">Cambodia</collectingCountry>
, noted that the shape of the lateral margins of the male pleon is not taxonomically reliable. The dorsal flap on the G1 terminal segment is an indicative character but may not be always reliable as well. In
<taxonomicName id="4C3A4D64FFBA3A0BFCED5AD3FBD3FD4E" box="[852,1047,727,753]" pageId="6" pageNumber="370">
<emphasis id="B94EEAF5FFBA3A0BFCED5AD3FC78FD4F" box="[852,956,727,752]" italics="true" pageId="6" pageNumber="370">Eosamon</emphasis>
species
</taxonomicName>
, the dorsal flap on the G1 terminal segment is always wide and distinct, being clearly visible usually from the ventral perspective (
<bibRefCitation id="EFAB4B16FFBA3A0BFB0E5AFFFAA8FCAA" author="Yeo, D. C. J. &amp; Ng, P. K. L." box="[1207,1388,763,789]" pageId="6" pageNumber="370" pagination="273 - 308" refId="ref6318" refString="Yeo, D. C. J. &amp; Ng, P. K. L. (2007) On the genus &quot; Potamon &quot; and allies in Indochina (Crustacea: Decapoda: Brachyura: Potamidae). Raffles Bulletin of Zoology, Supplement 16, 273 - 308." type="journal article" year="2007">Yeo &amp; Ng 2007</bibRefCitation>
: fig. 5;
<bibRefCitation id="EFAB4B16FFBA3A0BFF0A5B1BFEE6FC86" author="Yeo, D. C. J." box="[179,290,799,825]" pageId="6" pageNumber="370" pagination="747 - 754" refId="ref6150" refString="Yeo, D. C. J. (2010) A new species of Eosamon from southern Vietnam (Brachyura, Potamidae), with notes on E. brousmichei (Rathbun, 1904). In: Fransen, C. H. J. M., De Grave, S. &amp; Ng, P. K. L. (Eds.), Studies on Malacostraca: Lipke Bijdeley Holthuis Memorial Volume. Brill, Leiden, pp. 747 - 754. https: // doi. org / 10.1163 / 9789047427759 _ 056" type="book chapter" year="2010">Yeo 2010</bibRefCitation>
: fig. 2;
<bibRefCitation id="EFAB4B16FFBA3A0BFEC15B1BFD84FC86" author="Ng, P. K. L. &amp; Clark, P. F." box="[376,576,799,825]" pageId="6" pageNumber="370" pagination="115 - 121" refId="ref5684" refString="Ng, P. K. L. &amp; Clark, P. F. (2022) A new species of Eosamon (Crustacea, Brachyura, Potamidae) described from Bokor, Cambodia. Crustacean Research, 51, 115 - 121. https: // doi. org / 10.18353 / crustacea. 51.0 _ 115" type="journal article" year="2022">Ng &amp; Clark 2022</bibRefCitation>
: fig. 3A–C). In
<taxonomicName id="4C3A4D64FFBA3A0BFD4B5B1BFC09FC86" box="[754,973,799,825]" pageId="6" pageNumber="370">
<emphasis id="B94EEAF5FFBA3A0BFD4B5B1BFCB6FC86" box="[754,882,799,825]" italics="true" pageId="6" pageNumber="370">Aiyunamon</emphasis>
species
</taxonomicName>
, there is no obvious flap or only a low or small one is present; in
<taxonomicName id="4C3A4D64FFBA3A0BFE245B47FD8EFCE3" authority="Ng &amp; Tri, 2023" authorityName="Ng &amp; Tri" authorityYear="2023" box="[413,586,835,861]" class="Malacostraca" family="Potamidae" genus="Aiyunamon" higherTaxonomySource="CoL" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="370" phylum="Arthropoda" rank="species" species="vietnamicum" status="n. sp.">
<emphasis id="B94EEAF5FFBA3A0BFE245B47FD8EFCE3" box="[413,586,835,861]" italics="true" pageId="6" pageNumber="370">A. vietnamicum</emphasis>
</taxonomicName>
<emphasis id="B94EEAF5FFBA3A0BFDE95B47FD4AFCE2" bold="true" box="[592,654,835,861]" pageId="6" pageNumber="370">
<taxonomicNameLabel id="A27D578EFFBA3A0BFDE95B47FD4AFCE2" box="[592,654,835,861]" pageId="6" pageNumber="370" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, there is a low and wide flap when viewed dorsally (
<figureCitation id="13012A62FFBA3A0BFB6F5B47FAE8FCE2" box="[1238,1324,835,861]" captionStart="FIGURE 9" captionStartId="10.[151,250,1912,1936]" captionTargetBox="[153,1434,1031,1886]" captionTargetId="figure-383@10.[151,1436,1029,1889]" captionTargetPageId="10" captionText="FIGURE 9. Aiyunamon vietnamicum n. sp., holotype male (21.5 × 17.5 mm) (ZRC 2022.790), Vietnam. A, left G1 (ventral view); B, distal part of left G1 (ventral view); C, distal part of left G1 (dorsal view); D, left G2. Scales: A, D = 1.0 mm; B, C = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.7923550" httpUri="https://zenodo.org/record/7923550/files/figure.png" pageId="6" pageNumber="370">Fig. 9C</figureCitation>
) although when viewed ventrally, there is no obvious flap (
<figureCitation id="13012A62FFBA3A0BFD005B63FCF6FC3E" box="[697,818,871,897]" captionStart="FIGURE 9" captionStartId="10.[151,250,1912,1936]" captionTargetBox="[153,1434,1031,1886]" captionTargetId="figure-383@10.[151,1436,1029,1889]" captionTargetPageId="10" captionText="FIGURE 9. Aiyunamon vietnamicum n. sp., holotype male (21.5 × 17.5 mm) (ZRC 2022.790), Vietnam. A, left G1 (ventral view); B, distal part of left G1 (ventral view); C, distal part of left G1 (dorsal view); D, left G2. Scales: A, D = 1.0 mm; B, C = 0.5 mm." figureDoi="http://doi.org/10.5281/zenodo.7923550" httpUri="https://zenodo.org/record/7923550/files/figure.png" pageId="6" pageNumber="370">Fig. 9A, B</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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