Type host. Scapteromys aquaticus Thomas (Mammalia: Cricetidae).
Site of infection. Small intestine.
Type locality. Argentina, Buenos Aires Province, Isla Talavera (33 º 53 ʹ 18 ʹ S, 59 º03ʹ 59 ʹ W).
Holotype: 3 (in 2 fragments) MLP 4694 / 7. Paratypes: MLP 4694 / 8 (allotype Ƥ) (cited as MLP 4694 / 3 a), MLP 4694 / 9 (6 ƤƤ, one fragmented) (cited as MLP 4694 / 3 b).
Remarks. Paratypes (5 ƤƤ) in the Muséum national d’Histoire naturelle, Paris, France.
Reference. Digiani & Durette–Desset (2003 b).