[Identity of polystome larvae, parasites of Dicroglossus occipitalis tadpoles, on the Ivory Coast (author's transl)].

The morphological analysis of the haptorial hooklets of african Polystomatidae shows that many species of larvae parasitize the tadpoles of Dicroglossus occipitalis (Günther). These multiple infestations are in contrast to the close parasitic specificity recognized by the adult Polystomes. This difference is explained by the behaviour of the host and the notion of supplying host is introduced.