Definition of date mussel in English:
A brown, cigar-shaped bivalve mollusc which bores into limestone and coral.
- Genus Lithophaga, family Mytilidae
- The date mussel's shell is covered with a thick brown layer of horny material, which protects it against the acid.
- Urchin pits and piddock and date mussel holes are valuable habitat for other animals.
- Some mussels, date mussels, secrete acid and dissolve limestone.