著者

Peter K. L. Ng

出版者

Carcinological Society of Japan

雑誌

Crustacean Research (ISSN:02873478)

巻号頁・発行日

vol.50, pp.65-73, 2021-06-25 (Released:2021-06-25)

参考文献数

26

被引用文献数

4

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A new genus and new species of potamid freshwater crab, Xestomon tacu, is described from Ta Kou mountain in southern Vietnam. The new genus is characterised by its transversely ovate and smooth carapace surface, the very low to undiscernible epigastric and postorbital cristae, complete absence of a flagellum on the third maxilliped, relatively short ambulatory legs, a male telson which is acutely triangular with the lateral margins distinctly concave, and a short stout male first gonopod which has the terminal segment gently curved upwards.

著者

Peter K. L. Ng

出版者

Carcinological Society of Japan

雑誌

Crustacean Research (ISSN:02873478)

巻号頁・発行日

vol.52, pp.15-21, 2023-02-18 (Released:2023-02-18)

参考文献数

10

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The male of the rare deep-water porter crab, Dicranodromia danielae Ng & McLay, 2005 (Homolodromiidae) is reported for the first time from Mindanao in the southern Philippines. The species was previously only known from the holotype female from Panglao in central Philippines. The diagnostic male characters are described and variation in various characters documented.

著者

Peter K. L. Ng Paul F. Clark

出版者

Carcinological Society of Japan

雑誌

Crustacean Research (ISSN:02873478)

巻号頁・発行日

vol.51, pp.115-121, 2022-10-21 (Released:2022-10-21)

参考文献数

19

被引用文献数

1

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An un-named Eosamon Yeo & Ng, 2007 (Brachyura: Potamidae) specimen was discovered in the reference collection of the Natural History Museum, London. Further investigation of this freshwater crab proved it to be of interest because it is the first record of the genus from Cambodia and the male to be a hitherto undescribed Eosamon species. The new species, E. cambodiense n. sp., is here described, illustrated and compared with other congeners: E. brousmichei (Rathbun, 1904), E. paludosum (Rathbun, 1904), E. hafniensis (Bott, 1966), E. yotdomense (Naiyanetr, 1984), E. boonyaratae (Naiyanetr, 1987), E. phuphanense Naiyanetr, 1992, and E. nominathuis Yeo, 2010.

著者

Peter K. L. Ng Bertrand Richer De Forges

出版者

Carcinological Society of Japan

雑誌

Crustacean Research (ISSN:02873478)

巻号頁・発行日

vol.50, pp.95-101, 2021-07-13 (Released:2021-07-13)

参考文献数

6

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A new species of majid crab, Sakaija amicitiae n. sp., is described from New Caledonia Exclusive Economic Zone, Vauban seamount and the Chesterfield Atolls. The species is superficially similar to S. japonica (Rathbun, 1932) and S. santo Ng & Richer de Forges, 2015, from Vanuatu. Specimens from New Caladonia previously referred to S. santo are now referred to the new species. Sakaija amicitiae n. sp. can be distinguished from congeners by features of the carapace spines, proportions of the ambulatory legs and structure of the male first gonopod.

著者

Tohru Naruse Peter K. L. Ng

出版者

日本甲殻類学会

雑誌

Crustacean Research (ISSN:02873478)

巻号頁・発行日

vol.37, pp.1-13, 2008 (Released:2017-05-15)

参考文献数

21

被引用文献数

2 5

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A new species of the genus Chiromantes Gistel, 1848 s. str. is described from the Ryukyu Islands. The new species is distinguished from another species of Chiromantes s. str., C. haematocheir (De Haan, 1833), by having proportionately longer and less setose ambulatory legs, a relatively flatter carapace, larger eyes, proportionally narrower front, relatively broader male sixth abdominal segment, less inflated male chela, and distinct colouration. The present study also regards Holometopus serenei as a junior subjective synonym of C. haematocheir.