EQUIVALVE
Dictionary of Science, Literature and Art · 1854 · p. 11
A bivalve is so called when its two valves are of similar size and form. EQUl' [s. 429]
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1842)
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