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Issue: Vol. 5693 No. 2: 17 Sept. 2025
Type: Article
Published: 2025-09-17
DOI: 10.11646/zootaxa.5693.2.10
Page range: 291-300
Abstract views: 103
PDF downloaded: 5

Tayninhon nuibaden, a new genus and new species of freshwater crab (Crustacea: Decapoda: Brachyura: Potamidae) from Ba Den Mountain, Southeast Vietnam

Institute of Life Science; Vietnam Academy of Science and Technology; No. 9/621 Vo Nguyen Giap Street; Linh Xuan Ward; Ho Chi Minh City; Vietnam
Southern Branch of the Joint Vietnam—Russia Tropical Science and Technology Research Center. No. 3; Road 3/2 Street; Vuon Lai Ward; Ho Chi Minh City; Vietnam
Institute of Biology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Ha Noi; Vietnam; Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Ha Noi; Vietnam
Crustacea Potamoidea freshwater crab taxonomy new genus new species biodiversity conservation

Abstract

Recent surveys in Ba Den Mountain, Southeast Vietnam, found one new genus and species of the potamid, Tayninhon nuibaden gen. nov., sp. nov. The new genus is characterised by its medium adult carapace size, relatively flat, rugose and striae on the carapace dorsal surface, low epigastric, postorbital cristae and epibranchial tooth; the anterolateral margin is serrated; relatively wide thoracic sternum with smooth surface; sternopleonal cavity reaching to the imaginary line connecting anterior edges of cheliped coxae; relatively narrow telson; the male first gonopod is sinuous with relatively broad subterminal segment, and the terminal segment hook-shaped with a fold at the basal part, distal part curved inwards, tip sharp; and the male second gonopod is relatively short. The present study brings the total number of freshwater crab species belonging to Potamidae in Vietnam to 61.

 

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How to Cite

Dang, P.D., Tien, T.V. & Tu, D.V. (2025) Tayninhon nuibaden, a new genus and new species of freshwater crab (Crustacea: Decapoda: Brachyura: Potamidae) from Ba Den Mountain, Southeast Vietnam. Zootaxa, 5693 (2), 291–300. https://doi.org/10.11646/zootaxa.5693.2.10