Zoology. = periostracum, n. Obsolete.
单词 | θ32728 |
释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Brachiopoda > [noun] > member of > parts of (7) periosteum1758 Zoology. = periostracum, n. Obsolete. periostracum1833 The outer horny or fibrous organic covering of the shell of a mollusc or brachiopod. Cf. epidermis, n. 2. pallium1834 Zoology. The mantle of a mollusc or brachiopod (mantle, n. 8). mantle cavity1853 the space enclosed between the mantle and the body of a mollusc, brachiopod, etc., containing respiratory organs. adjustor1857 Zoology and Palaeontology. In a living or fossil brachiopod: any of several muscles which adjust the position of the valves of the shell (with… jugum1888 Zoology. In certain brachiopods with hinged shells, a process of the dorsal valve. protegulum1891 In brachiopods: the initial or embryonic form of the shell, or of each valve of the shell. |
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