Note 123 — Chapter XXI · —Pursuit after Pôros, nephew of the great Pôros—Conquest of the country between the Akesinês and the Hydraôtês—Passage of the latter river

The Hydraôtês is called by Strabo (XV. i. 21) the Hyarôtis, and in Ptolemy’s Geography the Adris or Rhouadis. It is now the Râvî, which is an abridged form of its Sanskrit name, the Airâvatî. It passes the city of Lahore, and joins the Chenâb about 30 miles above Multân. In former times, however, the junction occurred 15 miles below that city. In Ptolemy’s Geography the Rhouadis is erroneously made to join the Hydaspês, or, as Ptolemy calls it, the Bidaspês. Arrian in his Indika (c. 4) describes the Hydraôtês as rising in the country of the Kambistholoi, and after receiving the Hyphasis among the Astrybai, and the Saranges from the Kêkeans (the Sekaya of Sanskrit), and the Neudros from the Attakênoi, falling into the Akesinês. The Hyphasis does not, however, join the Hydraôtês.