elongate giant clam

Scientific name Tridacna maxima
Descriptor Röding
Year of description 1798
IUCN category DD
Family Cardiidae
Genus Tridacna
Tridacna maxima Tridacna maxima


Tridacna maxima, commonly known as elongate giant clam, is a brackish water and salt water mollusc.

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Who is it?


  • Size
    25 - 45 cm
  • Chromatophores
  • Motif
  • Size
    25 - 45 cm
  • Chromatophores
  • Motif

How to recognize the elongate giant clam ?

The elongate giant clam measures between 25 and 45 cm. This mollusc is multicolore with a predominantly bleu and marron body. The also has multiple.

Behaviour & Life cycle

  • Sociability
  • Way of living
  • Venomous
  • Diet
    not specified

Chromatophores are pigment cells that reflect light in the integument of some animals. They are mostly responsible for the color of the skin and eyes of cold-blooded animals and are created by the neural crest during embryonic development.

The elongate giant clam is a mollusc solitary. This species is omnivorous .

n general, this species does not care much about other animals crossing its path.


  • Reproduction

The elongate giant clam is a mollusc ovipare.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    23 - 30 °C
  • Depth
    0 - 35 m

Biotope presentation

The elongate giant clam is most often found at a depth between 0m and 35m. However, it is not impossible to find this species at other depths.

Species of the same biotope

To go further

To read on the web

Sources & Contributions

Participation & Validation

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Aurélien Calas

Aurélien Calas


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Where to see this species?

Scientific partners

Species of the same biotope

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