Assiminea lugubris is a species of small operculate snail, a marine gastropod mollusc or micromollusc in the family Assimineidae.
Description The length of the shell attains 7 mm, its diameter 5 mm.
Distribution This terrestrial species occurs in marine and brackish waters off Port Alfred, South Africa.
References
Turton, W. H. (1932). The marine shells of Port Alfred S. Africa. Humphrey Milford, London. pp. i-xvi, 1–331, pls 1-70. Connolly, M. (1939). A monographic survey of South African non-marine Mollusca. Annals of the South African Museum. 33: 1–660.