“…The ESA morphology is found in eight siluriform families: Doradidae, Auchenipteridae, Mochokidae, Malapteruridae, Ariidae, Cranoglanididae, Pangasiidae and Pseudopimelodidae (Müller, ; Bridge & Haddon, , ; Parmentier & Diogo, ; Boyle, Colleye & Parmentier, ). Drumming sounds have been described in Doradidae (Kastberger, , ; Kaatz & Lobel, ; Papes & Ladich, ; Kaatz & Stewart, ), Auchenipteridae (Kastberger, ; Kaatz & Stewart, ), Ariidae (Tavolga, ) and Mochokidae (Kaatz & Stewart, ; Boyle et al ., ). The ESA morphology of electric catfish (Malapteruridae) was appreciated in early investigations of siluriform swim bladder morphology (Müller, ; Bridge & Haddon, , ).…”