African, but not Asian, notopterid fishes are electroreceptive: evidence from brain characters.
In teleostean fishes which are known to be electroreceptive, the dorsolateral portion of the medulla contains a unique structure: the lateral line lobe. The unexpected finding of this structure in the medulla of the African members of the family Notopteridae strongly suggests that they are electroreceptive. Examination of the brains of several Asian members of this family reveals that they lack the lateral line lobe and are thus not expected to be electroreceptive.
D000349:Africa; D000818:Animals; D001208:Asia; D001921:Brain / Q000502:physiology*; D004553:Electric Conductivity; D004558:Electric Stimulation; D004594:Electrophysiology; D005399:Fishes / Q000502:physiology*; D013045:Species Specificity