A new species of Acanthopotamon Kemp, 1918 (Decapoda: Brachyura: Potamidae: Potaminae) from northeastern India, with a key to the species of the genus and notes on their distribution in relation to freshwater ecoregions. Journal of Crustacean Biology, 39(4), Jul 2019: 450-458. 452 [Zoological Record Volume 156]