The Greek that is translated as “with the Twin Brothers as its figurehead” or similar in English is translated in the German New Testament translation by Berger / Nord (publ. 1999) with am Bug mit den Bildern der Dioskuren Castor und Pollux geschmückt or “decorated on the bow with the images of the Dioskouri Castor and Pollux.”
More information about Castor and Pollux .