Quadrigyrus machadoi Fabio, 1983

Actinopterygii Hoplias malabaricus (Bloch) ( Characiformes, Erythrinidae). SI: intestine. SD: adult. L: Santa Fe Province: San Javier River. R: Chemes and Brusa (2013). C: vouchers (MACN-Pa 548–549; MFA-ZI 05–06). Pimelodus maculatus Lacépède ( Siluriformes, Pimelodidae). SI: intestine. SD: adult. L: Santa Fe Province: San Javier River. R: Chemes and Brusa (2013). C: vouchers (MFA-ZI 07–08).