The Order Siluriformes contains these Families:

• 111. Diplomystidae [diplomystid catfishes]
• 112. Ictaluridae [North American freshwater catfishes (bul]
• 113. Bagridae [bagrid catfishes]
• 114. Olyridae [olyrid catfishes]
• 115. Cranoglanididae [armorhead catfishes]
• 116. Siluridae [sheatfishes]
• 117. Schilbidae [schilbid catfishes]
• 118. Pangasiidae [pangasid catfishes]
• 119. Amphiliidae [loach catfishes]
• 120. Sisoridae [sisorid catfishes]
• 121. Amblycipitidae [torrent catfishes]
• 122. Akysidae [stream catfishes]
• 123. Parakysidae [parakysids]
• 124. Chacidae [squarehead, angler or frogmouth catfishe]
• 125. Clariidae [airbreathing catfishes (labyrinth catfis]
• 126. Heteropneustidae [airsac catfishes]
• 127. Malapteruridae [electric catfishes]
• 128. Ariidae [sea catfishes]
• 129. Plotosidae [eeltail catfishes]
• 130. Mochokidae [squeakers or upside-down catfishes]
• 131. Doradidae [thorny catfishes]
• 132. Ageneiosidae [bottlenose or barbelless catfishes]
• 133. Auchenipteridae [driftwood catfishes]
• 134. Pimelodidae [long-whiskered catfishes]
• 135. Cetopsidae [whalelike catfishes]
• 136. Helogenidae [helogeneid catfishes]
• 137. Hypophthalmidae [lookdown catfishes or loweye catfishes]
• 138. Aspredinidae [banjo catfishes]
• 139. Nematogenyidae [nematogenyids]
• 140. Trichomycteridae [pencil catfishes or parasitic catfishes]
• 141. Callichthyidae [callichthyid armored catfishes]
• 142. Scoloplacidae [spiny dwarf catfishes]
• 143. Loricariidae [suckermouth armored catfishes]
• 144. Astroblepidae [climbing catfishes]