...Shell bivalve, equivalve, very transversely elongated, open at both ends...
William Swainson 「Zoological Illustrations, Volume I」
...16, 17) is a bivalve with long pointed shell, another (,figs...
Alfred M. Tozzer and Glover M. Allen 「Animal Figures in the Maya Codices」
...This doubling of the single median foot of the bivalve may be anartistic necessity for the sake of balance, or perhaps represents bothfoot and siphon at the same end...
Alfred M. Tozzer and Glover M. Allen 「Animal Figures in the Maya Codices」
...The knives are simplythe shells of a common freshwater bivalve (Cyrena sp...
A. F. R. Wollaston 「Pygmies and Papuans」
...The hillconsisted of a red ferruguinous sandstone, in parts of which wereimbedded univalve and bivalve shells, pieces of water-worn or burntwood, and what seemed fragments of bone...
Thomas Mitchell 「Journal of an Expedition into the Interior of Tropical Australia」
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tubercular accumulating basal
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