TREMATODA
CHARACTERS OF TREMATODES—HABITS AND STRUCTURE OF TREMATODA
ECTOPARASITICA (MONOGENEA)—LIFE-HISTORIES OF _POLYSTOMUM
INTEGERRIMUM_, _DIPLOZOON PARADOXUM_, AND _GYRODACTYLUS ELEGANS_
—TREMATODA ENDOPARASITICA (DIGENEA)—OCCURRENCE AND HABITS OF DIGENEA
—LIFE-HISTORY OF _DISTOMUM MACROSTOMUM_—_DISTOMUM HEPATICUM_ AND ITS
EFFECTS—_BILHARZIA HAEMATOBIA_—BISEXUAL TREMATODES—TABLE OF HOSTS
—CLASSIFICATION 51