There is this also in the nature of fish, that some are more highly esteemed in one place, and some in another; such, for instance, as the coracinus2426 in Egypt, the zeus,2427 also called the faber,2428 at Gades, the salpa,2429 in the vicinity of Ebusus,2430 which is considered elsewhere an unclean fish, and can nowhere2431 be thoroughly cooked, wherever found, without being first beaten with a stick: in Aquitania, again, the river salmon2432 is preferred to all the fish that swim in the sea.