Parasitic Nematodes Obtained from Animals Dying in the Calcutta Zoological Gardens. Parts

Acuaria anthuris (Rudolphi, 1819). Worms, which I ha ve referred to this species, were found in the gizzard of a Red-billed Chough (Graculus eremita). One female worm of this species has been previously recorded by Baylis and Daubney (1922) from an Indian host, viz., the Red-billed Blue Magpie (Urocissa occipitalis). According to Cram (1927) the only hosts from wltich this worm has been recorded are several species of the genus Oorvus, but my worms agree so closely with the description given by this author that there seems to be no doubt that they are the same species. This is an important species as it is the type of the genus Acuaria, and as such it represents a large group of worms. Cram, in her discussion of the genus, draws attention to the confusion that exists, owing to incomplete and discordant descriptions of this worm by early workers, and as no full description has yet been given by anyone writer, it has been considered worth while giving a detailed account of the worm, using modern methods of examination and nomenclature.