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SUPERORDER Siluriphysae

ORDER Gymnotiformes Rafinesque, 1810

SUBORDER Gymnotoidei

NAKEDBACK KNIFEFISHES

Family Gymnotidae

SUBORDER Sternopygoidei Mago-Leccia, 1978

SAND KNIFEFISHES

Family Rhamphichthyidae

GLASS KNIFEFISHES

Family Sternopygidae

BLUNTNOSE KNIFEFISHES

Family Hypopomidae

GHOST KNIFEFISHES

Family Apteronotidae

ORDER Siluriformes Rafinesque, 1810

SUBORDER Loricaroidei

MOUNTAIN CATFISHES

Family Nematogenyidae

ARMORED CATFISHES

Family Callichthyidae

SPINY DWARF CATFISHES

Family Scoloplacidae

PARASITIC CATFISHES

Family Trichomycteridae

SUCKERMOUTH ARMORED CATFISHES

Family Loricariidae

CLIMBING CATFISHES

Family Astroblepidae

SUBORDER Diplomystoidei Grande, 1987

VELVET CATFISHES

Family Diplomystidae

SUBORDER Siluroidei

WHALELIKE CATFISHES

Family Cetopsidae

EELTAIL CATFISHES

Family Plotosidae

IMPERIAL CATFISHES

Family Horabagridae

STREAM CATFISHES

Family Akysidae

SISORID CATFISHES

Family Sisoridae

SHEATFISHES

Family Siluridae

BANJO CATFISHES

Family Aspredinidae

THORNY CATFISHES

Family Doradidae

CISTERN CATFISHES

Family Phreatobiidae

BUMBLEBEE CATFISHES

Family Pseudopimelodidae

AIRSAC CATFISHES

Family Heteropneustidae

MALAGASY CATFISHES

Family Anchariidae

ARMORHEAD CATFISHES

Family Cranoglanididae

CHIAPAS CATFISHES

Family Lacantuniidae

ELECTRIC CATFISHES

Family Malapteruridae

CLAROTEID CATFISHES

Family Claroteidae

SQUAREHEAD CATFISHES

Family Chacidae

ASIAN SCHILBEIDS

Family Ailiidae

NAKED CATFISHES

Family Bagridae

TORRENT CATFISHES

Family Amblycipitidae

PANGASID CATFISHES

Family Pangasiidae

INDIAN CAVE FISHES

Family Kryptoglanidae

DRIFTWOOD CATFISHES

Family Auchenipteridae

HEPTAPTERID CATFISHES

Family Heptapteridae

LONG-WHISKERED CATFISHES

Family Pimelodidae

AIRBREATHING CATFISHES

Family Clariidae

SEA CATFISHES

Family Ariidae

ICTALURID CATFISHES

Family Ictaluridae

LOACH CATFISHES

Family Amphiliidae

SQUEAKERS

Family Mochokidae

SCHILBEID CATFISHES

Family Schilbeidae