Africa: West Africa (Senegal, Gambia, Niger, Volta and Chad basins) (Ref. 2835, 3188, 81263) up to the Nile basin (Ref. 2835, 3188) and lakes Turkana (Ref. 3188) and Albert (Ref. 41590, 48922, 48960) (Polypterus senegalus senegalus)
Definition: length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. Simply put, this measurement excludes the length of the caudal fin