Fish invading dinoflagellates: a synopsis of existing and newly proposed genera

Th paper reviews the dinoflagellate general invading marine and freshwater fishes, presents their diagnostic features, points out the difference from tunicate-invading genus Oodinium Chatton, 1912 and comments on their pathogenicity. The genus Crepidoodinium Lom and Lawler g.n. is proposed for Oodinium cyprinodontum Lawler, 1967 from marine cyprinodontids, and Piscinoodinium g.n. is proposed to accommodate freshwater Oodinium pillularis Schäperclaus, 1954 and O. limneticum Jacobs, 1964. The most important diagnostic character is the structure of the attachment organelle which is depicted along with some other morphological features.