Figure 5. Physaloptera praeputialis egg showing the contained fully developed first-stage larva that is present in a fresh fecal specimen.

Bowman, D.D., Barr, S.C., Hendrix, C.M. and Lindsay, D.S. Gastro-intestinal Parasites of Cats. In: Bowman D.D. (Ed.), Companion and Exotic Animal Parasitology. Ithaca: International Veterinary Information Service (, 2003; Document No. A0313.0103.(Accessed: 18 Jul 2018).