Journal of Helminthology

Research Papers

Preliminary Note on the Anatomy of a Polystome from the Bladder of Xenopus laevis Daud

Joan B. Williamsa1

a1 From the Department of Parasitology, London School of Hygiene and Tropical Medicine

Six specimens of Xenopus laevis obtained from University College, London, were examined for polystomes; one harboured an adult worm measuring 2·1 mm. in length and two immature specimens, both 0·8 mm. in length, and one was parasitized by a single mature specimen measuring 2·4 mm. in length.