The genus Fossarina was moved from the family Fossariidae to the newly created subfamily Fossarininae within the family Trochidae by Williams et al. in 2010.
Description
The shell is auriform, a little depressed and narrowly umbilicated. The spire is short. The oval aperture is oblique. The lips are rounded. The operculum is multispiral.
↑Williams S. T., Donald K. M., Spencer H. G. & Nakano, T. (2010). "Molecular systematics of the marine gastropod families Trochidae and Calliostomatidae (Mollusca: Superfamily Trochoidea)". Molecular Phylogenetics and Evolution54(3): 783-809. doi:10.1016/j.ympev.2009.11.008
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