[The occurrence of monogeneans of the subfamily Capsalinae (Capsalidae)--parasites of marine fishes].

The data on an occurrence of capsalines in marine fishes are analyzed. 33 capsaline species among 55 recently known species are monoxienous, that points to the high specialization of these monogeneans. The majority of species are recorded from three subfamilies of perciform fishes: Scombridae, Istiophoridae, Xiphiidae. Possible factors causing the high specificity in monogeneans are discussed.