THE PARASITIC HELMINTHS OF CANADIAN ANIMALS: I. THE CESTODARIA AND CESTODA

One adult Cestodarian, 53 adult Cestoda and 24 larval Cestoda are known to occur in Canadian animals. The majority of the Cestoda are distributed among the Dibothriocephaloidea and Taenioidea.Of the Cestoda, 29 of the adult species are represented in Europe, 14 are recorded elsewhere only in the United States, 6 are recorded only in Canada and 4 are unassignable. Of the 24 larval forms, 14 and one doubtful form are also European, 3 and two doubtful forms are recorded elsewhere only in the United States, 2 occur also in Japanese waters and 2 are not assignable.An attempt is made to evaluate the economic status of the cestodes of the area.