Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5476 No. 1: 4 Jul. 2024
Type: Article
Published: 2024-07-04
DOI: 10.11646/zootaxa.5476.1.24
Page range: 298-313
Abstract views: 50
PDF downloaded: 0

Taxonomic notes on three species of Tiwaripotamon Bott, 1970 (Crustacea: Brachyura: Potamidae) from Vietnam and China, one of which is new to science

Lee Kong Chian Natural History Museum; Faculty of Science; National University of Singapore; 2 Conservatory Drive; Singapore 117377; Republic of Singapore
Crustacea Potamoidea semiterrestrial crab karst Indochina redescriptions new species taxonomy

Abstract

A new species of semiterrestrial freshwater crab, Tiwaripotamon nganima n. sp. is described from northern Vietnam. The gonopods of the new species most closely resemble T. annamense (Balss, 1914) originally collected from Phuc-Son in Annam, central Vietnam, but can easily be distinguished as it has the median lobe on the posterior margin of the epistome being more projecting, the male pleon is proportionately more quadrate and less wide, the basal part of the male first gonopod has the median part of the subterminal segment more strongly curved, and the outer surface of the basal part of the terminal segment of the male first gonopod is prominently swollen. The taxonomy of two species described from southern China, T. pingguoense Dai & Naiyanetr, 1994, and T. xiurenense Dai & Naiyanetr, 1994, is also clarified after re-examination of type specimens and photographs of the original material; both species are redescribed and refigured.

 

References

  1. Balss, H. (1914) Potamonidenstudien. Zoologische Jahrbucher, Abtheilung fur Systematik, Geographie und Biologie der Thiere, 37, 101–410. https://doi.org/10.5962/bhl.part.1071
  2. Balss, H. (1937) Potamoniden (Dekapoda Brachyura) der Philippinen und des Malayischen Archipels. Internationale Revue der gesamten Hydrobiologie und Hydrographie, 34 (3–5), 143–197. https://doi.org/10.1002/iroh.19370340111
  3. Bott, R. (1970) Die Süßwasserkrabben von Europa, Asien, Australien und ihre Stammesgeschichte. Eine Revision der Potamoidea und der Parathelphusoidea (Crustacea, Decapoda). Abhandlungen der senckenbergischen naturforschenden Gesellschaft, 526, 1–338, pls. 1–58, map 1.
  4. Cumberlidge, N., Ng, P.K.L., Yeo, D.C.J., Magalhaes, C., Campos, M.R., Alvarez, F., Naruse, T., Daniels, S.R., Esser, L.J., Attipoe, F.Y.K. Clotilde-Ba, F.-L., Darwall, W., Mcivor, A., Collen, B. & Ram, M. (2009) Freshwater crabs and the biodiversity crisis: importance, threats, status, and conservation challenges. Biological Conservation, 142, 1665–1673. https://doi.org/10.1016/j.biocon.2009.02.038
  5. Dai, A.-Y. (1999) Fauna Sinica (Crustacea: Decapoda: Parathelphusidae, Potamidae). Science Press, Beijing, 501 pp., 30 pls. [in Chinese with English abstract]
  6. Dai, A.-Y. & Naiyanetr, P. (1994) A revision of the genus Tiwaripotamon Bott, 1970, the freshwater crabs from China (Decapoda: Brachyura: Potamidae). Sinozoologia, 11, 47–72.
  7. Đăng, N.T. & Hồ, T.H. (2002) Hai loai cua moi thuoc ho Potamidae o Viet Nam [Two new crab species of Potamidae found in Vietnam]. Tap chi Sinh Hoc [Journal of Biology, National Centre for Natural Science and Technology of Vietnam], 24 (2), 1–8 [in Vietnamese].
  8. Đăng, N.T. & Hồ, T.H. (2012) Tom, Cua nuoc ngot Viet Nam (Palaemonidae, Atyidae, Parathelphusidae, Potamidae) [Freshwater Crabs and Shrimps from Vietnam (Palaemonidae, Atyidae, Parathelphusidae, Potamidae)]. Publishing House for Science and Technology, Hanoi, 264 pp. [in Vietnamese]
  9. Do, V.T. (2014) Freshwater crabs of Vietnam: diversity and conservation. Journal of Vietnamese Environment, 6 (2), 109–114. https://doi.org/10.13141/jve.vol6.no2.pp109-114
  10. Do, V.T., Nguyen, T.C. & Dang, V.D. (2017) Two new species of freshwater crabs of the genus Tiwaripotamon Bott, 1970 (Crustacea, Decapoda, Brachyura, Potamidae) from northern Vietnam. Raffles Bulletin of Zoology, 65, 455–465.
  11. Do, V.T., Shih, H.-T. & Huang, C. (2016) A new species of freshwater crab of the genus Tiwaripotamon Bott, 1970 (Crustacea, Brachyura, Potamidae) from northern Vietnam and southern China. Raffles Bulletin of Zoology, 64, 213–219.
  12. Fruhstorfer, H. (1905) Tagebuchblätter. Leipzig, Frankestein & Wagner, (i) + 721 pp. [reprint of articles appearing in volumes 16–22 (1899–1905) of Insekten-Börse].
  13. Ng, P.K.L. & Ngo, V.T. (2022) A new semiterrestrial crab from limestone hills in Vietnam (Crustacea: Brachyura: Potamidae: Tiwaripotamon). Zootaxa, 5213 (5), 578–586. https://doi.org/10.11646/zootaxa.5213.5.6
  14. Ng, P.K.L. & Yeo, D.C.J. (2001) A revision of the genus Tiwaripotamon Bott, 1970 (Decapoda: Brachyura: Potamidae), with a description of a new species. Journal of Crustacean Biology, 21, 275–287. https://doi.org/10.1163/20021975-99990123
  15. Ortmann, A. (1896) Das system der Decapoden-Krebse. Zoologische Jahrbucher Abteilung für Systematik, Geographie und Biologie der Thiere, 9, 409–453.
  16. Rathbun, M.J. (1905) Les crabes d’eau douce. Nouvelles Archives du Muséum d’Histoire naturelle, Series 4, 7, 159–322.
  17. Shih, H.-T. & Do, V.T. (2014) A new species of Tiwaripotamon Bott, 1970, from northern Vietnam, with notes on T. vietnamicum (Dang & Ho, 2002) and T. edostilus Ng & Yeo, 2001. (Crustacea, Brachyura, Potamidae). Zootaxa, 3764 (1), 26–38. https://doi.org/10.11646/zootaxa.3764.1.2
  18. Yeo, D.C.J. & Ng, P.K.L. (2004) Recognition of two subfamilies in the Potamidae Ortmann, 1896 (Brachyura, Potamidae) with a note on the genus Potamon Savigny, 1816. Crustaceana, 76 (10), 1219–1235. https://doi.org/10.1163/156854003773123456