The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the order Pteriida.
Like scallops, true oysters have a central adductor muscle, which means the shell has a characteristic central scar marking its point of attachment. The shell tends to be irregular as a result of attaching to a substrate.
Both oviparous (egg-bearing) and larviparous (larvae-bearing) species are known within Ostreidae. Both types are hermaphrodites. However, the larviparous species show a pattern of alternating sex within each individual, whereas the oviparous species are simultaneous hermaphrodites, producing either female or male gametes according to circumstances.
Members of genus Ostrea generally live continually immersed and are quite flat, with roundish shells. They differ from most bivalves by having shells completely made up of calcite, but with internal muscle scars of aragonitic composition. They fare best in somewhat oligotrophic water. They brood their fertilized eggs for various proportions of the period from fertilization to hatching.
Members of genera Saccostrea, Magallana, and Crassostrea generally live in the intertidal zone, broadcast sperm and eggs into the sea, and can thrive in eutrophic water. One of the most commonly cultivated oysters is the Pacific oyster, which is ideally suited for cultivation in seawater ponds.
The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the...
oysters are not closely related to either the edible oysters of family Ostreidae or the freshwater pearl mussels of the families Unionidae and Margaritiferidae...
Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. This genus is very ancient. It is known in the fossil records...
Ostreoidea Family: Gryphaeidae, the foam oysters or honeycomb oysters Family: Ostreidae, the true oysters (Scallops and their allies) Superfamily: Anomioidea...
genus Saccostrea, belonging to the subfamily Saccostreinae of the family Ostreidae. The best-known species is the Sydney rock oyster (Saccostrea glomerata)...
Crassostrea is a genus of true oysters (family Ostreidae) containing some of the most important oysters used for food. The genus was recent split in WoRMS...
Compare ὀστέον (osteon) 'bone'. True oysters are members of the family Ostreidae. This family includes the edible oysters, which mainly belong to the genera...
bivalve mollusc in the family Ostreidae. This species of flat oyster is a marine bivalve mollusc of the family Ostreidae. This species is native to Chile...
as the mangrove cupped oyster, is a species of bivalve in the family Ostreidae. C. rhizophorae is one of the predominant oyster species in the South...
and two extant families are recognised within it. The two families are Ostreidae, the true oysters, and Gryphaeidae, the foam oysters. In 2010, a new proposed...
is a species of edible oyster, a marine bivalve mollusk in the family Ostreidae. This species occurs on the northern Pacific coast of North America. Over...
Saccostrea glomerata is an oyster species belonging to the family Ostreidae. It is endemic to Australia and New Zealand. In Australia, it is known as...
tulipa, the West African mangrove oyster, is a true oyster in the family Ostreidae. The mangrove oyster is found in tropical intertidal zones. It grows on...
(2014). "Molecular phylogenetics and systematics of the bivalve family Ostreidae based on rRNA sequence-structure models and multilocus species tree"....
looking for food. The eastern oyster, like all members of the family Ostreidae, can make small pearls to surround particles that enter the shell. These...
Aviculopectinidae, did not possess it. Like the true oysters (family Ostreidae), scallops have a single central adductor muscle, thus, the inside of...
developed axial rod. Anal flaps are known to exist within the family Ostreidae but not within the more-primitive Gryphaeidae. The scar from the adductor...
Ostreola may also be used to refer to also a genus of oyster in the family Ostreidae; however, this name is unaccepted and Ostrea should be used instead. Lumbsch...
Magallana is a genus of true oysters (family Ostreidae) containing some of the most important oysters used for food. Species in this genus have been moved...
typical of the oysters (Ostreidae), scallops (Pectinidae), thorny oysters (Spondylidae), and kittens paws (Plicatulidae). Ostreidae hinge Pectinidae hinge...
as the scallops. They are not closely related to true oysters (family Ostreidae); however, they do share some habits such as cementing themselves to rocks...
morphological identification of a new species of Crassostrea (Bivalvia: Ostreidae) cultured for centuries in the Pearl River Delta, Hong Kong, China". Aquaculture...
is a species of fossil oyster, a marine bivalve mollusk in the family Ostreidae, the oyster. This species lived during the Pliocene. Fossils have been...
oyster or horse oyster, is a species of bivalve mollusc in the family Ostreidae. It can be found along the Atlantic coast of North and South America,...
El Mers Tamguert n'Tarit Isolated shells A marine oyster of the family Ostreidae Parkinsonia P. sp. Skoura syncline Isolated shells An ammonite of the...
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