MARINE TUBIFICIDAE (OLIGOCHAETA) OF ANTARCTICA, WITH DESCRIPTIONS OF 3 NEW SPECIES OF PHALLODRILINAE

Five species of Tubificidae are recorded from Antarctic waters: Torodr ilus lowryi Cook, 1970, Torodrilus sp. (subfamily Rhyacodrilinae), Mar ionidrilus antarcticus sp. n., M. weddellensis sp. n., and Thalassodri lus bicki sp. n. (subfamily Phallodrilinae); only T. lowryi was known from Antarctica before. The status of the two Southern Hemisphere gene ra Torodrilus Cook, 1970, and Marionidrilus Erseus, 1992, are discusse d; although the taxonomic position of the two new species of Marionidr ilus is somewhat uncertain. Thalassodrilus bicki, however, appears clo sely related to Northern Hemisphere taxa.