What is "sophytes"

Sophytes is described in classical sources as a ruler in the Punjab region who submitted to Alexander and was, thereby, permitted to retain his realms. He made a gift of hunting dogs to Alexander. Scholars, including Sylvain Lévi, have suggested, based on Panini, that the name Sophytes may be equated with the name Saubhuti, but there is no conclusive proof of this. It is not clear if this king Sophytes is the same as the individual named Sophytes on coins discovered in the northwest of the Indian subcontinent, or whether he was a later dynast based in Bactria.