Note 905 — Chapter I
W. (William) Falconer translation
In many authors these names are used indifferently, the one for the other; they are however distinguished by Pliny, (iv. 13,) who states that this sea begins to be called the Caspian after you have passed the river Cyrus, (Kur,) and that the Caspii live near it; and in vi. 16, that it is called the Hyrcanian Sea, from the Hyrcani who live along its shores. The western side should therefore in strictness be called the Caspian; the eastern, the Hyrcanian. Smith, art. Caspium Mare.