View of inner surface of an operculum.
Operculum.
large operculum about 4-5 inches across
Horse conch operculum? Exact date of collection unknown
Gastropod operculum "trap door"
The operculum of a large Horse Conch.
An operculum. The outer surface.
No idea This was a first for me finding this
Most likely? Specimen from dredged material.
who is the comma
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