Faber, M. J. and R. G. Moolenbeek. 1987. On doubtful records of Alvania platycephala, Alvania pagodula and Alvania didyma, with the description of two new rissoid species (Mollusca; Gastropoda: Rissoidae). Beaufortia 37 67-71. [Stated date: 09 Nov 1987.] {Included species}