The Broad Tapeworm in America: With Suggestions for its Control Two Plates

Abstract

The history of Diphyllobothrium latum in America is briefly reviewed. The possibility of finding several other larval forms of tapeworms in fishes is pointed out, therefore larval forms should be reared to adults for identification. D. latum is nearly world wide in distribution. The life cycle, which is discussed, is not completely known. It is demonstrated that fishes from all commercially important lakes in Canada are infested with D. latum larvae. Prophylaxis is discussed.