MolluscaBase name details
original description
Reid, D. G. (1988). The genera <i>Bembicium</i> and <i>Risellopsis</i> (Gastropoda: Littorinidae) in Australia and New Zealand. <em>Records of the Australian Museum.</em> 40: 91-150., available online at https://journals.australian.museum/reid-1988-rec-aust-mus-402-91150/ [details]
source of synonymy
Beu, A.G. & Maxwell, P.A. (1990) Cenozoic Mollusca of New Zealand. New Zealand Geological Survey Paleontological Bulletin, 58, 1–518.
page(s): 426 [details]