siphunculated

Example:The siphonate structure of the shell helps the mollusk to draw water out of its body for respiration.

Definition:Having or characterized by a siphon or siphonic action; often used to describe filtration or water movement through a tube-like structure.

Example:The siphonal grooves on the shell are crucial for the proper functioning of the mollusk's siphonal tube.

Definition:Describing structures or channels running along the length of a structure, often seen in shells or certain organs.