Paralus
PARALUS and SALAMINIA, the name of two ancient Athenian triremes used for sacred embassies, the conveyance of despatches and tribute money, the transportation of state criminals, and as flagships in time of war. It is probable that a third vessel of the same kind (called Delia) was used exclusively for Delian embassies, although it has been identified by some with the Salaminia.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)