During 1946, the number of specimens of animal faeces examined microscopically and reported upon for detection of Entozoa was 56. Repeat examinations were frequently made, most of which are not included in this number. Concentration methods and washing of samples for worms were usually done. Forty-two mammals, one Python, also were examined, many from collections newly arrived from Africa. In the list of Entozoa and the hosts harbouring them, the popular name of the host is given where it occurs for the first time.