Wallace's Line

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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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Wallace's line

(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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
The Wallace Line marks the separation of the Sunda Shelf from the scattered islands as they drift down towards the larger landforms of Papua and Australia.
KEMPTON: 4.20 Charlemagne Diva, 4.50 Fitz Flyer, 5.20 Conflicting, 5.55 Donncha, 6.30 Morning Watch, 7.00 The Wallace Line, 7.30 Grey Mirage, 8.00 Golden Jubilee.
Chapter 2 follows Alfred Russell Wallace through Amazonian and Malaysian jungles, his independent discovery of natural selection, his tracing of the "Wallace Line," and his founding of biogeography.