REDESCRIPTION OF CHARCOTIA-GRANULOSA VAYSSIERE, 1906 (NUDIBRANCHIA, ARMINOIDEA, CHARCOTIIDAE) FROM SIGNY ISLAND, ANTARCTICA

The nudibranch Charcotia granulosa, described originally by Vayssiere (1906) from one specimen, was recollected for the first time at Signy Island, Antarctica. These three specimens allow a redescription of the morphology, anatomy and histology. The synapo-morphies of the Charcot iidae (narrow, glandular stripe on the right side starting behind the female genital opening, and running posteriorly above the nephroproct and anal papilla, and flat, rudimentary lateral radular teeth), with t he two genera, the monotypic Charcotia Vayssiere, 1906 and Pseudo-trit onia Thiele, 1982 (with three species) are discussed.