Apteryx, which since Owen has generally been stated to be devoid of such an organ, likewise possesses a pecten; its base is, however, trumpet-shaped, covers almost the whole of the optic disk, and extends nearly to the lens in the shape of a thick, densely pigmented cone, without any plications, resembling in these respects the pecten of many Lacertilia (see G. [Please select]
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After several plications, it terminates in a kind of bladder or fleshy sac, i. [Please select]
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Plications: folding,; applied to the folds on the hind wings of Orthoptera. [Please select]
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