Mollusca, Nudibranchia: new records and southward range extensions in Santa Catarina, southern Brazil

Abstract

Nudibranch molluscs constitute a group of marine gastropods little studied in most of the Brazilian coast extension. Up to date, only ten species are known from Santa Catarina state, southern Brazil. This work presents four new records of nudibranchs from this region: Aeolidiella indica Bergh, 1988; Berghia rissodominguezi Muniain and Ortea, 1999; Chromodoris paulomarcioi Domínguez, García and Troncoso, 2006 and Tambja stegosauriformis Pola, Cervera, and Gosliner, 2005, expanding the known geographic distribution of the last two species more than 900 km southward.