Family Zygocotylidae Sey, 1988

Zygocotyle Stunkard, 1917

Zygocotyle lunata (Diesing, 1836) Stunkard, 1917

Natural hosts: Anas sibilatrix Poepping, Cygnus melanocorypha (Molina) . Experimental hosts: Mus musculus L., Gallus gallus domesticus (L.). Site of infection: ceca.

Localities: Pellegrini Lake, Río Negro Province; Del Burro lagoon, Buenos Aires Province; Buenos

Aires Zoological Garden, Buenos Aires city.

Life history: in Buenos Aires Zoological Garden, Buenos Aires city. Hi1: Biomphalaria peregrina

(d’Orbigny) (natural host).

Material deposited: MLP, 655 D, 3322.

References: Sutton & Lunaschi (1987), Digiani (1997b), Ostrowski de Núñez et al. (2003).