19 photos - 7 species


All mussels have two shells, they are connected with flexible bands.

Most are filter feeders, buried in the sand or with a shell attached to a rock.

Only a few can swim.

Ctenoides scaber

Flame scallop

Size: 6 - 7 cm

Luminescent to orange-red mantle.

In shallow water the tentacles are often reddish-orange ( photo 2 -3 ),

in deeper water they are white ( photo 1 ).

The shell halves are whitish to brownish in colour and have many fine radial ribs.

The mussel is able to swim independently in jerky movements

and occasionally seeks out locations behind stones. 

Photos 1 - 4 Johnny: Bonaire Caribbean

Pedum spondyloideum

Iridescent clam, Coral clam or Coral scallop

Size: 3 - 6 cm

In nature, it is found exclusively in living corals,

where it settles and grows.

It attaches itself to the calcareous skeleton of the coral with byssus threads

and is overgrown by these, so that only the shell openings are visible. 

Photos 1 - 2 Johnny: Bangka Island North Sulawesi

Pinctada margaritifera

Pearl oyster or Black-lip pearl shell

Maximum 30 cm

Its teeth interlock when closing.

She produces valuable pearls.

Photo 1 Johnny: Hurghada Egypt

Tridacnagigas + maxima + squamosa + crocea

Tridacnagigas + maxima + squamosa + crocea shells

Maximum length: from 1.2 m (large giant clam) to 15 cm (giant clam)

The differences in some species are so small that I can't tell them apart, sorry, so no name.

Photo 1 Johnny: Bangka Island North - Sulawesi

Photos 2 - 8 Johnny: Hurghada Egypt

Photos 9 - 11 Johnny:Embudu Maldives