Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
chimney — n. [Gr. kaminos, fireplace] (MOLLUSCA: Bivalvia) A tube formed of agglutinized particles derived from boring, extending over the posterior end of the shell and sometimes extends anteriorly nearly to the mesoplax; see siphonal tube … Dictionary of invertebrate zoology
metaplax — n. [Gr. meta, after; plax, plate] (MOLLUSCA: Bivalvia) A long narrow posteriorly pointed, rounded or forked accessory plate covering the gape between the two valves on the dorsal margins posterior to the umbo; see protoplax, mesoplax … Dictionary of invertebrate zoology
protoplax — n. [Gr. protos, first; plax, flat plate] (MOLLUSCA: Bivalvia) In Pholadidae, simple, nearly flat, dorsal chitinous or calcareous plate anterior to the umbo; see mesoplax, metaplax … Dictionary of invertebrate zoology
