A large wedge-shaped bivalve mollusc of warm seas which burrows into the seabed where it attaches itself by strong byssus threads.
笔贝
Family Pinnidae: Pinna and other genera
Example sentencesExamples
Perfect for photography, the cave walls and rocky floor are filled with marine life, including pen shells and seahorses.
The pen shell is the largest shellfish of the Adriatic sea, with a possible length of 1200 mm.
Included are pen shells, pearl oysters and a young Tridacna.
The top of this elegant accent table is hand-laid with pen shell to create an artistic pattern.
Modern pinnoideans, or ‘pen shells,’ are shallowly to deeply endobyssate, equivalved, edentulous, ham-shaped bivalves with a single, slightly submerged, opisthodetic ligament.
Definition of pen shell in US English:
pen shell
noun
A large wedge-shaped bivalve mollusk of warm seas which burrows into the seabed where it attaches itself by strong byssus threads.
笔贝
Family Pinnidae: Pinna and other genera
Example sentencesExamples
Perfect for photography, the cave walls and rocky floor are filled with marine life, including pen shells and seahorses.
The top of this elegant accent table is hand-laid with pen shell to create an artistic pattern.
Included are pen shells, pearl oysters and a young Tridacna.
The pen shell is the largest shellfish of the Adriatic sea, with a possible length of 1200 mm.
Modern pinnoideans, or ‘pen shells,’ are shallowly to deeply endobyssate, equivalved, edentulous, ham-shaped bivalves with a single, slightly submerged, opisthodetic ligament.