Integument of Kamptozoa Barentsia discreta Busk, 1886

The integument of the colonial species Barentsia discreta has been investigated in the present work. On its greater length the integument is presented by a monolayered unciliated epithelium covered by a layer of microvillar cuticle. The floor of the atrial cavity and the frontal surface of tentacles is lined by ciliated epidermis covered by a protocuticle. Sensitive and secretory cells are present in the epidermis.