Fig. 3From: The diversity and evolution of electric organs in Neotropical knifefishesA simplified phylogenetic tree of Gymnotiformes, within which the Gymnotidae, Rhamphichthyoidea and Sinusoidea are considered in parallel. Notable example species are given, along with the corresponding presence of a myogenic electric organ (mEO) with Type A or Type B electrocytes and/or a neurogenic electric organ (nEO) [1, 31]Back to article page