Lewis & Short

Phĭlaeni, ōrum (ōn), m., = Φίλαινοι, two Carthaginian brothers, who, out of love for their country, submitted to be buried alive, Sall. J. 79, 5; Val. Max. 5, 6, ext. 4; Mel. 1, 7, 6.
Philaenōn Arae, a frontier town of Cyrene named after them, the southernmost point of the Great Syrtis, Sall. J. 19, 3; called also Philaenorum Arae, Mel. 1, 7, 1; Plin. 5, 4, 4, § 28.