Apatemon gracilis (Rudolphi, 1819) Szidat, 1928

Site of infection: intestine.

Localities: Argentina (locality not reported); Biobío Region (Chile). Life history: H1: Lymnaea peregra (Muller, 1774) (Gastropoda, Lymnaeidae). H2: Oncorhynchus mykiss (Walbaum, 1792) (Pisces: Salmonidae)

Reference: Boero et al. (1972). Present study.

Comments: first record from Chile.