ИСТИНА

Class Gastropoda is a large group of the phylum Mollusca and is remarkable by great species’ diversity. Representatives of Gastropoda have very wide range of feeding modes, which also affects the food-obtaining apparatus morphology. Nevertheless, only few published data known for both general and fine morphology of the structures, which comprise the buccal complex, and the feeding mechanism for gastropods. Present data are not enough for understanding the way, how the buccal complex and the mode of feeding in gastropods evolved. Our research is dedicated to investigation of general and fine morphology of the buccal complex and mechanism of feeding of the nudibranch Flabellina verrucosa (M. Sars, 1829) (Nudibranchia: Aeolidida: Flabellinidae).