The Eggs and Larvae of Dog, Cat 
and Fox Parasites 
I N previous pages, the subject of examining feces for parasites and 
parasite eggs has been discussed. It now seems advisable to follow 
this with some descriptions with illustrations of the parasite eggs 
present in the case of the dog, cat and fox. There has been some 
demand for something of the sort on the part of veterinarians, and 
in view of the scarcity of illustrations covering this point in text¬ 
books and the fact that the available illustrations are scattered 
through numerous publications largely inaccessible to the practitioner, 
there is evidently some reason for the demand. Strange as it may 
/l 
3 . 
Fig. 1. Taenia pisiformis. A, egg surrounded by vitelline membrane containing 
vitelline masses. B, embryophore. Enlarged. From Railliet, 1893. 
seem, the eggs of some of the commonest parasites have been figured 
but very seldom, presumably on the assumption that everyone in¬ 
terested in them is familiar with them, which is not a safe assump¬ 
tion. Some of the available figures are not very satisfactory, but 
material for new illustrations is not always available in these cases, 
and as the existing illustrations serve the purpose of at least indicat¬ 
ing something of the appearance of the egg in question, they have 
been copied here. 
17 
