Rock oyster

Rock oyster
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Superfamily: Ostreoidea
Family: Ostreidae
Genus: Saccostrea
Dollfus & Dautzenberg, 1920
Type species
Ostrea saccellus
Dujardin, 1837
Synonyms
  • Ostrea (Saccostrea) Dollfus & Dautzenberg, 1920
  • Parastriostrea Harry, 1985
  • Saxostrea Iredale, 1936

Rock oysters are true oysters of the genus Saccostrea, belonging to the subfamily Saccostreinae of the family Ostreidae. Depending on the environmental factors and the substrates it is found in, individuals can vary greatly in size. They feed on phytoplankton and detritus.

Probably the best-known species is the Sydney rock oyster (Saccostrea glomerata).