QUEIROS, Pedro Fernandes de (kay'-ros), Portuguese navigator, born in Evora, Alentejo, in 1560; died in Panama in 1614. He is also known under the name of QilROS, and most historians call him a Spaniard. He was a pilot in the Spanish service, and made several voyages to New Spain. In 1604 he received the commission of general and the command of an expedition to explore the Pacific ocean. Two frigates and a sloop were built in Callao, and Queiros sailed from that place, 21 December, 1605, Luis Vaes de Tortes acting as his deputy. Their course was west-southwest, and they did not see land for 3,000 miles, when, on 22 January, 1606, they passed Incarnation island, and afterward the Dezana archipelago, lying in 17º 53' S. They landed at Sagitaria island (now Tahiti) on 10 February, discovered, 7 April, Toumako, where King Tamay gave them valuable information, and on 25 April descried the New Hebrides islands, and an apparent continent, which Queiros named Tierra Austral del Espiritu Santo. He arrived in Acapulco, 3 October, 1606, and, proceeding immediately to Madrid, presented to Philip III. a memoir in which he urged the advantages of colonizing the countries that he had discovered. The court of Spain refused him support, and he went to Panama, intending to organize a new expedition with his own resources, but died there. His "Cart as al rey Felipe III." (Seville, 1.610) are full of interesting details. The original narrative of his voyage has been published in volume xvii. of the "Viagero Universal," but a copy was issued during his life under the title "Narratio de Terra Australi incognita" (Amsterdam, 1613). The French version is better known : " Copie de la requite presentee au roi d'Es-pagne sur la ddcouverte de la cinquieme partie du monde, appel6e la Terre Australe incogneuS, et des grandes richesses et fertilit6s d'icelle" (Paris, 1617). Purchas gave also an English version of it in his " Pilgrimmes" (London, !625).