ANATOMICAL AND TAXONOMICAL STUDIES OF THE ANTARCTIC NUDIBRANCHS AUSTRODORIS-KERGUELENENSIS (BERGH, 1884) AND A-GEORGIENSIS-N SP FROM THE SCOTIA SEA

During the expedition ''ANTARTIDA 8611'' to the Scotia Sea, organized by the Spanish Oceanographic Institute, several specimens of Austrodor is were collected. Although nearly all have been identified as Austrod oris kerguelenensis (Bergh, 1884), one of them shows some anatomical f eatures, mainly related to the reproductive system, that allows us to identify this specimen as a new species, which we have named A. georgi ensis. Therefore, with the aim of clarifying the taxonomical value of this species, a comparative study of the anatomy of A. kerguelenensis and A. georgiensis is presented. Some new data on the diet of A. kergu elenensis are also presented.