ðə lˈɑːɹdʒɪst spˈiːsiːz ɪn ðɪs fˈæmɪli ɪz sˈɪlʊɹɹəs ɡlˈæniz, ðə wˈɛlz kˈætfɪʃ, wˌɪtʃ kæn ɡɹˈoʊ tə lˈɛŋθs ˌoʊvɚ ænd wˈeɪ ˈʌp tuː .
The largest species in this family is Silurus glanis, the Wels catfish, which can grow to lengths over  and weigh up to .