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Bearing spines: spinose gastropods.

[Latin spīnōsus, from spīna, thorn.]

spi·nos′i·ty (-nŏs′ĭ-tē) n.
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.
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The results suggested that prey with less expressed ornamentation were preferred ahead of highly spinose prey, and Stone therefore concluded that the primary effect of more pronounced spinosity was that of preventing direct access to the shell of the bivalve.
Using some of the newer pesticides (spinosity, indoxacarb, tebufenozide) when needed will help to preserve natural enemies of aphids.