Linked from

The 19 pages that link to Operculum, each with the reason it gives.

• GillsRelated: Its movements help pump water across gills when a fish is stationary.

• Suction feedingRelated: Opercular motion contributes to pressure changes in some fish feeding systems.

• SpiracleCompared with: Unlike the spiracle, the operculum covers the gills and helps drive water out.

• TeleostRelated: Its movement helps teleosts ventilate their gills while stationary.

• OsteichthyesRelated: Its movement helps ventilate the gills of many ray-finned fishes.

• Fish gillRelated: Its movement helps drive water across the gills in many fishes.

• Dermal boneBroader topic: This fish structure is part of the dermal skull.

• Ram ventilationCompared with: Opercular movement can pump water over gills without continuous forward swimming.

• TeleosteiBroader topic: Teleosts use opercular movement to draw water across the gills while breathing.

• NematocystRelated: In capsules with an operculum, its opening permits the tubule to emerge.

• Bony fishRelated: It supports efficient ventilation in many ray-finned fishes.

• External gillsRelated: The operculum illustrates how internalized gills are shielded and ventilated.

• SnailBroader topic: In snails that possess one, it seals the shell when the animal withdraws.

• Freshwater snailRelated: Many freshwater snails use this door-like structure to seal themselves against predators or drying.

• Land snailCompared with: Some land snails use one to seal the shell during dormancy or dry conditions.

• TurritellidaeRelated: Many turret snails use an operculum to seal the shell when withdrawn.

• BryopsidaBroader topic: Its detachment exposes the capsule opening and often the peristome.

• PumpkinseedRelated: The pumpkinseed’s distinctive ear flap is part of its gill-cover structure.

• WeeverRelated: A spine on the weever’s gill cover can also deliver venom.