title: MICROANATOMY, ULTRASTRUCTURE, AND SYSTEMATIC SIGNIFICANCE OF THE EXCRETORY SYSTEM AND MANTLE CAVITY OF AN ACOCHLIDIAN GASTROPOD (OPISTHOBRANCHIA).
authors: Zoologische Staatssammlung München (ZSM), Münchhausenstr. 21, D-81247 München, Germany.
authors: A.
authors: A
authors: Fahrner
authors: G.
authors: G
authors: Haszprunar