WEBER'S LINE

hypothetical boundary between the Oriental and Australasian faunal regions, representing the apparent midline in the mixing of the two faunas. First proposed in 1902 as a replacement for Wallace's Line (q.v.) and modified by many subsequent investigators, Weber's Line extends from the Indian Ocean through the Timor Sea east of Timor, northward through the Molucca Sea (between the Celebes and the Moluccas), and into the Philippine Sea north of the Moluccas.