Checklist of digenean parasites of birds from Argentina Author Cremonte, Florencia Author Drago, Fabiana B. text Zootaxa 2007 1403 1 36 journal article 10.5281/zenodo.273687 994488c4-de04-4574-87d8-f2f6d70e3160 1175­5326 273687 Family Cyclocoelidae Kossak, 1911 Cyclocoelum Brandes, 1892 Cyclocoelum ( Cyclocoelum ) mutabile (Zeder, 1800) Syns.: Monostomum mutabile Lahille, 1918 Cyclocoelum paradoxum Marcó del Pont, 1926 Cyclocoelum lahillei Dollfus, 1948 Hosts: Fulica armillata Vieillot , Fulica sp., Gallinula chloropus galeata ( Lichtenstein ) , Pardirallus mac­ ulatus maculatus (Boddaert) . Site of infection: air sacs. Localities: La Plata Zoological Garden, La Plata; Delta del Paraná, Buenos Aires Province. References: Lahille (1918) , Marcó del Pont (1926) , Szidat (1963b) . Cyclocoelum ( Cyclocoelum ) microstomum (Creplin, 1829) Host : Fulica armillata Vieillot. Site of infection: not reported. Locality: Río de la Plata, Buenos Aires Province. Life history: Hi1 and Hi2: Heleobia parchappei (d’Orbigny) from Quequén River, Buenos Aires Province; metacercariae encysted in visceral cavity. Reference: Szidat (1963b) . Hyptiasmus Kossack, 1911 Hyptiasmus brumpti Dollfus, 1948 Syn.: H. oculeus de Szidat & Szidat, 1966 Host: Fulica leucoptera Vieillot. Site of infection: nasal and infraorbital cavities. Locality: Quequén River, Buenos Aires Province. Life history: Hi1: Heleobia parchappei (d’Orbigny) (natural host) from Quequén River, Buenos Aires Province. References: Szidat (1963a) , Szidat & Szidat (1966) .