Work found, with species-group names introduced therein:
Leyen, A. van and S. van der Spoel, S. 1982. A new taxonomic and zoogeographic interpretation of the Diacria quadridentata group (Mollusca, Pteropoda). Bulletin Zoölogisch Museum Universiteit van Amsterdam 8 101-119. [Stated date: 22 Jan 1982.] Diacria danae Diacria schmidti