Revision of the genus Amicula (Mollusca: Polyplacophora: Mopaliidae)

In recent years, three of the six described species of the genus Amicula Gray, 1847 have been retained in its composition: A. amiculata (Pallas, 1788), A. gurjanovae Jakovleva, 1952, and A. vestita (Broderip et Sowerby, 1829). This article presents a morphological analysis of the species of this genus, based on extensive collection material. The validity of the name A. gurjanovae, which had been questioned in recent years, is confirmed. Amicula vestita, syn. nov. placed in synonymy with A. amiculata. It is shown that the reversal of precedence cannot be applied to these two names (according to Article 23.9 of the Code), despite the extensive usage of A. vestita. Illustrated redescriptions of A. amiculata and A. gurjanovae are provided.