Irayas.--A Malay people mixed with Negrito blood, who dwell south of the Catalanganes and in the western declivities of the Cordillera of Palanan (Luzon). They speak the same language as the Catalanganes, and are likewise heathen. Their name seems to mean "dwellers on the plains," "owners of plains." To them the collective name Calinga is applied. (Consult A. B. Meyer, with A. Schadenberg, in Vol. VIII, folio series, of the Royal Ethnographic Museum in Dresden, 1890.) Isinays (Isinayas, Isinay).--In the eighteenth century the heathen population of the then mission province of Ituy were so called, which includes the present communities of Aritao, Dupax, Banibang, Bayombong (Nueva Vizcaya, Luzon). It is not certain whether they are a separate people or are identical with Gaddanus, Italones, or Ifugaos. Italones.--A head-hunting Malay people who inhabit the mountain wilds of Nueva Vizcaya (Luzon). They are heathen, only a small part of them having embraced Christianity. Ita, see Negritos. Itaas, see Atas. Itanegas, Itaneg, Itaveg. See Tinguianes. Itaves.--So used the language of the Calauas to be called; still there are authors who affirm that these two are different. Nothing certain is known concerning this name, which is also written Itaues, Itanes. From latest accounts, this is a dialect of Gaddan. Itetapanes (Itetapaanes).--According to Buzeta and Bravo, a head-hunting Malay people mixed with Negrito blood, living on the western borders of Isabela de Luzon and perhaps also in Bontok. Ituis.--According to Mas, a subdivision of Igorots. Nothing more is known. Compare Isinays. Ivanha.--Form of Ibanag. Joloanos.--The Moros of Sulu. Jacanes, see Yacanes. Kianganes, see Quianganes. (Meyer has Kingianes, 1899.) Jumangi, see Humanchi. Humanchi.--Heathen people of central Luzon (?); written Jumangi. Latan.--Another name for the Manguianes who inhabit the plains of Mangarin (Mindoro). Lanaos, see Illanos and Malanaos. Lanun, see Illanos. Laut, see Samales-Laut. Lingotes, see Ilongotes. Loacs.--Not a separate people, but the name of a very poor Tagacaolo tribe who dwell in the mountain forests of San Augustin Peninsula (Mindanao). Lutangas.--A Mohammedan mixed race of Moros and Subanos, who inhabit the island of Olutanga and the adjacent coast of Mindanao. Lutaos, Lutayos.--Moros of the district of Zamboanga and frequently called Illanos. It appears to be the Hispanicized form of the Malay Orang-Laut. Maguindanaos (Mindanaos).--Another of the Moros who inhabit the valley of the Rio Palangui or Rio Grande de Mindanao. To them belong also the Moros of Sarangani Islands and partly those of Davao Bay. (See the Maguindanaos, by Blumentritt, Das Ausland, 1891, No. 45, pp. 886-892.) Malanaos.--Common name of those Moros, specially of Ilanos, who inhabit the shores of Malanas Lake (Mindanao). Malancos.--A tribe alleged to be settled in Mindanao, but the name is plainly an error for Malanaos.