A mollusc which has an oval shell with an internal ledge, giving the empty shell a slipper-like appearance.
履螺，履贝。〈北美〉亦称BOAT SHELL
Genus Crepidula, family Crepidulidae, class Gastropoda: many species, especially the North American C. fornicata, which has become a serious pest of oyster beds in Europe
Example sentencesExamples
Thousands of pounds are being invested in clearing the area of mussels and slipper limpets, which drain the river-bed of nutrients and make it difficult for oysters to grow.
Females of the humble-looking slipper limpet secrete a substance into the water that maintains the masculinity of nearby males.
In places the seabed is a shell gravel composed largely of slipper limpet shells.
An alien aquatic snail species, the arched slipper limpet, has made its way to the sound from its native habitat on the East Coast.
The more loosely coiled ones have a more or less open umbilicus on each side, and some forms, like the Pterothecinae, had such a wide aperture and so little coiling as to resemble modern slipper limpets (Crepidula).