4. An officer in the service of Philip V. of Macedon, whom the king, exasperated by the Romans calling on him to give up Aenus and Maroneia in Thrace, employed as his chief instrument in the cruel massacre of the Maronites, B. C. 185. Being desired by the Romans to send Cassnnder to Rome for examination before the senate on the subject of the massacre, he caused him to be poisoned on his way, in Epeirus, to prevent any untoward revelations. (Plb. 23.13, 14 ; Liv. 39.27, 34.)