Guimbajanos (pronounced Gimbahanos).--The historians of the seventeenth century, under this title, designated a wild, heathen people, apparently of Malay origin, living in the interior of Sulu Island. Their name is derived from their war drum (guimba). Later writers are silent concerning them. In modern times the first mention of them is by P. A. de Pazos and by a Manila journal, from which accounts they are still at least in Carodon and in the valley of the Loo; it appears that a considerable portion of them, if not the entire people, have received Islam. Variants: Guinbajanos, Guimbanos, Guimbas, Quimpanos. Guinaanes (pronounced Ginaanes).--A Malay head-hunting people inhabiting the watershed of the Rio Abra and Rio Grande de Cagayan (Luzon), as well as the neighboring region of Isabela and Abra. They are heathen; their language possesses the letter f. Variants: Guianes, Ginan, Quinaanes, Quinanes. (See A. B. Meyer, with A. Schadenberg, Volume VIII, folio series, Royal Ethnographic Museum, Dresden, 1890.) Gulanga, see Guianga. Gulanganes, see Dulanganes. Halaya†.--A Visaya dialect spoken in the interior of Panay. Haraya.--A Visaya dialect spoken in the interior of the island of Panay, nearly identical with the foregoing. Hiliguayna†.--A Visaya dialect spoken on the coast of the island of Panay. Variants: Hiligueyna, Hiligvoyna. Hillunas, Hilloonas, see Illanos. Ibalones†.--Ancient name of Bicols, especially those of Albay. Ibanag.--Name of the language spoken by the Cagayanes. They possess the letter f. Idan, Idaan.--The Idan, sought by non-Spanish authors on the islands of Palawan (Paragua) and Sulu, have not been found. Ifugaos.--A dreaded Malay head-hunting people who inhabit the provinces of Nueva Vizcaya and Isabela and the lately formed comandancia of Quiangan. To them belong the Quianganes, Silipanos, etc. They are heathen. Their language possesses the sound of f. Ifumangies.--According to Diaz Arenas, this name applies to a tribe of Igorots who were then (1848) in the province of Nueva Vizcaya. The f in their name leads to the suspicion that they are Ifugaos. Ibilaos.--A Malay head-hunting people, having also apparently Negrito blood in their veins. They are heathen and inhabit the border lands of Nueva Vizcaya and Nueva Ecija. Igorots.--With the name Ygolot the first chroniclers characterized the warlike heathen who now inhabit Benguet, therefore the pure Igorots. Later, the name extended to all the head-hunters of northern Luzon; still later it was made to cover the Philippine islanders collectively, and to-day the title is so comprehensive that the name Igorot is synonymous with wild. According to Hans Meyer, the name applies only to the Igorots of Lepanto and Benguet, who speak the dialects Inibaloi, Cancanai, Cataoan, and a fourth (Suflin?), that of the Berpe Data. Variant: Ygolot, Ygulut.