Note 251 — Chapter V
Reading edition
δῆλοι δ’ oἱ γέροντες αὐτῶν τῷ μεγέθει τῶν λεπἰδων καἰ τῇ σκληρότητι. Professor D’Arcy Thompson, in his translation, renders this sentence “the age of a scaly fish may be told by the size and hardness of the scales.” It is most probable, though not a certainty, from contextual reasons, from Aristotle’s habit of casually harking back, and from Pliny in his translation of it (N. H., IX. 33) applying it generally, that this sentence applies to all fish, and not solely to the Tunny.