Theromyzon tessulatum O. F. Muller 1774

Theromyzon tessulatum (O. F. Müller, 1774) Site of infection: nostrils, mouth and body. Locality: Cheshire (England) (captivity). Reference: Curtis and Britt (1991).Published as part of González-Acuña, Daniel, Moreno, Lucila, Cicchino, Armando, Mironov, Sergey & Kinsella, Mike, 2010, Checklist of the parasites of the black-necked swan, Cygnus melanocoryphus (Aves: Anatidae), with new records from Chile, pp. 55-68 in Zootaxa 2637 on page 62, DOI: 10.5281/zenodo.19846