Cossoanus
Κοσσόανος
Cossoanus (Κοσσόανος, Arrian. Indic. 4), one of the many tributaries of the Ganges, recorded by Arrian. It is probably the same as that which Pliny (6.18. s. 22) calls Cossoagus. It has been conjectured that it is the same as that now called Cosi or Cosa.
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.