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This operculum is the trap door of a shell, called by the Latins Conchylium. These opercula may be of different sizes, but their overall shape is that of a claw, which is the origin of the name Unguis odoratus. The name Blatta Byzantina is occasioned by its having usually been imported from Constantinople, the ancient Byzantium. In antiquity ...
The binomial name often reflects limited knowledge or hearsay about a species at the time it was named. For instance Pan troglodytes, the chimpanzee, and Troglodytes troglodytes, the wren, are not necessarily cave-dwellers. Sometimes a genus name or specific descriptor is simply the Latin or Greek name for the animal (e.g. Canis is Latin for ...
It can also refer to the occipital operculum, part of the occipital lobe. The insular lobe is a portion of the cerebral cortex that has invaginated to lie deep within the lateral sulcus. It sits like an island (the meaning of insular) almost surrounded by the groove of the circular sulcus and covered over and obscured by the insular opercula.
Operculum (animal), a structure resembling a lid or a small door that opens and closes; Operculum (bird), a structure which covers the nares of some birds; Operculum (bryozoa), a lid on the orifice of some bryozoans; Operculum (fish), a flap covering the gills of bony fish; Operculum (gastropod), a sort of trapdoor used to close the aperture of ...
Shell of marine snail Lunella torquata with the calcareous operculum in place Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place. An operculum (Latin for 'cover, covering'; pl. opercula or operculums) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also ...
Pomacea is a genus of freshwater snails with gills and an operculum, aquatic gastropod mollusks in the family Ampullariidae, the apple snails. The genus is native to the Americas; most species in this genus are restricted to South America.
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Many of these are degenerations in the pronunciation of names that originated in other languages. Sometimes a well-known namesake with the same spelling has a markedly different pronunciation. These are known as heterophonic names or heterophones (unlike heterographs, which are written differently but pronounced the same).