Type host. Mesodesma mactroides Deshayes (Mollusca, Mesodesmatidae).
Type locality. Uruguay, Rocha Department, Playa de La Coronilla (33 ° 51 ʹS, 53 ° 30 ʹW).
Site of infection. Intestine.
Holotype: MLP 5563 (whole mounted specimen). Paratypes: MLP 5564 (1 whole mounted specimen and 3 specimens sagittally sectioned).
Remaks. One specimen in toto and one specimen sagittally sectioned deposited in the Facultad de Ciencias, Montevideo, Uruguay.
Reference. Brusa et al. (2006).