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operculum's Usage Examples:

The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor".

The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills;.

to nineteen pairs of tentacles surrounding the operculum, which looks slantingly cut.

The Aciculidae are a family of minute land snails which have opercula (an operculum is a little door that closes the shell when the animal retracts into.

operculum, an aquatic gastropod mollusk in the family Ampullariidae, the apple snail family.

The true conch has a foot ending in a pointed, sickle-shaped, operculum, which can be dug into the substrate as part of an unusual leaping locomotion.

main conical shell (previously referred to as a ‘conch’) and a cap-like operculum.

The asci are cylindrical, without operculum.

Key characters of this group include an operculum and a single pair of respiratory openings, features which were lost or.

Pomacea bridgesii, common names the spike-topped apple snail or mystery snail, is a South American species of freshwater snail with gills and an operculum.

[citation needed] The name "trapdoor snail" refers the operculum, an oval corneous plate that most snails in this clade possess.

ramshorn apple snail, is a species of large freshwater snail with an operculum, an aquatic gastropod mollusc in the family Ampullariidae, the apple snail family.

opercula (an operculum is a little door that closes the shell when the animal retracts into it).

Synonyms:

plate,

Antonyms:

cathode,