book gill


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Related to book gill: pedicel, Malpighian tubules

book gill:

see horseshoe crabhorseshoe crab,
large, primitive marine arthropod of the family Limulidae, related to the spider and scorpion and sometimes called a king crab (a name also used for the largest of the edible true crabs).
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book gill

[′bu̇k ‚gil]
(invertebrate zoology)
A type of gill in king crabs consisting of folds of membranous tissue arranged like the leaves of a book.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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