Overview

columella


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1 In corals, a rod-like structure that is formed from the swollen end of a septum. It may form a central structure within the skeleton.

2 In Gastropoda, a spiral, rod-like structure that is formed by the fusion of their inner surfaces in shells that are coiled very tightly around an axis.

Columella

Subjects: Earth Sciences and Geography — Zoology and Animal Sciences.


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