?
The weakly electric fish used in
our experiments belong to the orders Gymnotiformes and Osteoglossiformes.
?
They evolved divergently from the
Teleostei subdivision.
?
The Gymnotiformes order contains
elongated eel-like fish.
?
They are found in South America
and swim with stiff bodies and an undulating anal fin.
?
We used two Gymnotiform species in
our experiments: Apteronotus albifrons and Eigenmannia virescens.
?
Fish from the Mormyridae family in
the Osteoglossiformes order, found in West Africa, are distinguished by their
elongated noses.
?
Their weak electric organs are
found in the caudal peduncle.
?
We
have used the Mormyriform Gnathonemus petersii in previous experiments.
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