On the Life-History of Heterakis gallinœ

Abstract

During the course of some experiments involving the Nematode worm Heterakis gallinæ, it became necessary to know the exact life history in order to interpret the results. On consulting the literature it became evident that the details of the life history had never been worked out accurately in either this worm or in any of its near relations. Further-more, there was considerable controversy on the subject. For this reason therefore the whole morphology and life history were investigated in detail and some interesting points came to light.