One species, however, Distira semperi, is confined to the landlocked freshwater Lake Taal at Luzon in the Philippines.
Sumatra is about equal in extent to Great Britain; Java, Luzon, and Celebes are each about the size of Ireland.
ALIAGA, a town of the province of Nueva Ecija, Luzon, Philippine Islands, about 70 m.
CAVITE, a fortified seaport, the capital of the province of Cavite, Luzon, Philippine Islands, and the seat of the principal Asiatic naval station of the United States, on a forked tongue of land in Manila Bay, 8 m.
BATANGAS, a town, port of entry, and the capital of the province of Batangas, Luzon, Philippine Islands, near the Batangas river, about 1 m.