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Related to Wallace's Line: Alfred Russel Wallace
Wal·lace's Line(wŏl′ĭ-sĭz) or Wal·lace Line (wŏl′ĭs)
A hypothetical line separating the Oriental and Australasian biogeographic regions and passing between the islands of Borneo and Sulawesi in the north and Bali and Lombok in the south.
[After Alfred Russell Wallace.]
(Biology) the hypothetical boundary between the Oriental and Australasian zoogeographical regions, which runs between the Indonesian islands of Bali and Lombok, through the Macassar Strait, and SE of the Philippines
[C20: named after Alfred Russel Wallace]