Hay 77 especies citadas

ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Acestrorhamphidae
Astyanax lacustris (Astyanax asuncionensis)
Ctenobrycon kennedyi (Psellogrammus kennedyi)
Hyphessobrycon luetkenii
Moenkhausia dichroura
Psalidodon cf. fasciatus (Astyanax cf. fasciatus)
Psalidodon pellegrini (Astyanax pelegrini)
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Acestrorhynchidae
Acestrorhynchus pantaneiro
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Anostomidae
Leporinus lacustris
Schizodon borellii
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Characidae
Aphyocharax anisitsi
Aphyocharax dentatus
Aphyocharax nattereri
Charax leticiae
Cheirodon interruptus
Diapoma sp. (Cyanocharax sp.)
Gymnocorymbus ternetzi
Markiana nigripinnis
Odontostilbe pequira
Prionobrama paraguayensis
Roeboides descalvadensis
Roeboides microlepis
Salminus brasiliensis
Serrapinnus calliurus
Serrapinnus kriegi
Serrapinnus microdon
Tetragonopterus argenteus
Triportheus pantanensis
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Curimatidae
Psectrogaster curviventris
Steindachnerina brevipinna
Steindachnerina conspersa
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Erythrinidae
Hoplerythrinus unitaeniatus
Hoplias argentinensis (Hoplias malabaricus)
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Prochilodontidae
Prochilodus lineatus
ANIMALIA/CHORDATA/ACTINOPTERYGII/CHARACIFORMES/Serrasalmidae
Pygocentrus nattereri
Serrasalmus maculatus
Serrasalmus marginatus
ANIMALIA/CHORDATA/ACTINOPTERYGII/CICHLIFORMES/Cichlidae
Apistogramma borellii
Bujurquina vittata
Cichlasoma dimerus
Crenicichla lepidota
Crenicichla semifasciata
Gymnogeophagus balzanii
ANIMALIA/CHORDATA/ACTINOPTERYGII/CYPRINIFORMES/Lebiasinidae
Pyrrhulina australis
ANIMALIA/CHORDATA/ACTINOPTERYGII/CYPRINIFORMES/Rhamphichthyidae
Rhamphichthys hahni
ANIMALIA/CHORDATA/ACTINOPTERYGII/CYPRINODONTIFORMES/Rivulidae
Pterolebias longipinnis (Pterolebias bokermanni)
Trigonectes balzanii
ANIMALIA/CHORDATA/ACTINOPTERYGII/GYMNOTIFORMES/Gymnotidae
Gymnotus inaequilabiatus
ANIMALIA/CHORDATA/ACTINOPTERYGII/GYMNOTIFORMES/Hypopomidae
Brachyhypopomus gauderio
ANIMALIA/CHORDATA/ACTINOPTERYGII/GYMNOTIFORMES/Sternopygidae
Eigenmannia trilineata
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Auchenipteridae
Auchenipterus osteomystax
Trachelyopterus striatulus
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Callichthyidae
Callichthys callichthys
Gastrodermus hastatus (Corydoras hastatus)
Hoplosternum littorale
Lepthoplosternum pectorale
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Doradidae
Anadoras weddellii
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Heptapteridae
Pimelodella gracilis
Pimelodella laticeps
Rhamdia quelen
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Loricariidae
Hypostomus sp. 1
Hypostomus sp. 2
Loricaria simillima
Loricariichthys platymetopon
Otocinclus vittatus
Pterygoplichthys ambrosettii (Pterygoplichthys anisitsi)
Rineloricaria parva
Sturisoma barbatum (Sturisoma robustum)
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Pimelodidae
Hypophthalmus edentatus
Pimelodus albicans
Pimelodus ornatus
Pseudoplatystoma corruscans
Pseudoplatystoma reticulatum
Sorubim lima
ANIMALIA/CHORDATA/ACTINOPTERYGII/SILURIFORMES/Trichomycteridae
Tridentopsis cahuali
ANIMALIA/CHORDATA/ACTINOPTERYGII/SYNBRANCHIFORMES/Synbranchidae
Synbranchus marmoratus
ANIMALIA/CHORDATA/CHONDRICHTHYES/MYLIOBATIFORMES/Potamotrygonidae
Potamotrygon motoro
ANIMALIA/CHORDATA/SARCOPTERYGII/LEPIDOSIRENIFORMES/Lepidosirenidae
Lepidosiren paradoxa

Se citan especies en 1 áreas

Parque Nacional Río Pilcomayo