Wallace's Line

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Wal·lace's Line

 (wŏl′ĭ-sĭz) or Wal·lace Line (wŏl′ĭs)
n.
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

n
(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.