Resumen de Additions to the inventory of "Mollusca opisthobrnachia" of Galicia (Nw Iberian Peninsula)

Victoriano Urgorri, Guillermo Díaz Agras, G. Montoto, María Celia Besteiro Rodríguez

• A total of 36 species of Mollusca Opisthobranchia collected on Galician coasts (NW Iberian Peninsula) are presented in this article: one Cephalaspidea, one Anaspidea, two Acochlidiomorpha, two Sacoglossa and 30 Nudibranchia. Of these, 15 had not been previously quoted for Galicia; the other 21, despite being previously quoted, represent rare species or species little known on these coasts. For each species, remarks are made concerning different taxonomic aspects, their distribution and habitat characteristics.