The Trematode Parasites of the Sheathbill, Chionis alba (Gmelin), from Signy Island, South Orkney Islands

Abstract

This paper reports on two species of digenetic trematodes, namely Gymnophallus deliciosus (Olsson, 1893) and Notocotylus chionis Baylis, 1928, from Sheathbills collected on Signy Island.(lat. 60° 43' S., long. 45° 36' W.), South Orkney Islands, in July and October 1965 by Mr Charles Howie of the British Antarctic Survey. The birds were preserved in deep-freeze and later passed to us for examination. An account of the cestode parasites of these birds has been given previously (Jones & Williams, 1967).