Houbrick, R. S. (1990). Anatomy, reproductive biology and systematic position of Fossarus ambiguus (Linné) (Fossarinae: Planaxidae; Prosobranchia). Açoreana, suplemento. 1990: 59-73.
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Houbrick, R. S.
1990
Anatomy, reproductive biology and systematic position of <i>Fossarus ambiguus</i> (Linné) (Fossarinae: Planaxidae; Prosobranchia)