EN
Lecithaster macrocotyle Szidat et Graefe, 1967 is redescribed basing on specimens from various notothenioid fishes, including the type host, Parachaenichthys charcoti (Vaillant, 1906). Lecithaster micropsi sp. n. is described based on specimens from a gadiform fish, Muraenolepis microps 1905 and from some notothenioid fishes. The species differ from each other in shape of oral sucker, pharynx/oral sucker ratio, oral/ventral sucker ratio and arrangement of uterine loops. L. macrocotyle occurs at the South Shetland Islands and South Georgia, and in the Kerguelen subregion. L. micropsi sp. n. occurs at South Georgia and on the Falkland-Patagonian shelf. Both species are compared with other representatives of the genus Lecithaster occurring in the southern hemisphere.