Barnes R. S. K. (2002) The occurrence and ecology of a marine hydrobiid mud snail in the southern hemisphere: the Knysna Estuary, South Africa African Journal of Ecology 40: 289–294
Keywords: competition, intertidal, lagoon, Ocypodidae, Potamididae, salinity
Barnes R. S. K. (2010) The distribution and habitat in the Knysna Estuary of the endemic South African mud snail Hydrobia knysnaensis and the influence of intraspecific competition and ambient salinity on its abundance African Journal of Aquatic Science 29: 205–211
Keywords: Coastal, competition, eel-grass, estuary, lagoon, mudsnail, rarity, salinity