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Fluted giant clam (Tridacna squamosa)

Photo of Fluted giant clam (Tridacna squamosa)

Key facts

Scientific name
Tridacna squamosa
Common name
Fluted giant clam
Category
Molluscs
Family
Cardiidae
Genus
Tridacna
Size
30–60 cm
Depth
0–18 m
IUCN status
Least concern (LC)
Danger level
Harmless
Habitats
coral-reef
Behaviours
sessile, filter-feeder, symbiotic
Ocean zones
Asian Pacific, Indian Ocean & Red Sea

Description

Tridacna squamosa reaches 60 cm. Large giant clam with cream-white shell body characterized by 4-6 radial ribs with prominent erect scales (hence squamosa, scaly). Interior mantle highly variable colored (electric blue, green, purple, brown, yellow with marbled patterns) thanks to symbiotic zooxanthellae. Lives from 0 to 18 m on coral reefs of entire Indo-Pacific. Listed LC but local decline. Passive filter feeder and photosynthetic. Iconic wide-angle photo subject. Smaller than T. gigas (in seed) and T. derasa, but more colored.

Photo of Fluted giant clam

Photo of Fluted giant clam (Tridacna squamosa)Photo of Fluted giant clam (Tridacna squamosa)Photo of Fluted giant clam (Tridacna squamosa)

Frequently asked questions

How big is the Fluted giant clam?
Fluted giant clam (Tridacna squamosa) reaches 30–60 cm in length.
At what depth can you find the Fluted giant clam?
Fluted giant clam is found between 0–18 m deep.
Is the Fluted giant clam dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Fluted giant clam?
IUCN status: Least concern (LC).
Where can you find the Fluted giant clam?
Found in: Asian Pacific, Indian Ocean & Red Sea.

Other species in the genus Tridacna

  • Tridacna crocea - Crocus giant clam
  • Tridacna maxima - Maxima clam
  • Tridacna gigas - Giant clam
  • Tridacna derasa - Smooth Clam

Other species in the family Cardiidae

  • Acanthocardia tuberculata - Rough cockle
  • Cerastoderma glaucum - Lagoon cockle
  • Hippopus hippopus - Hippopus Clam

Sources

  • Taxonomy: WoRMS (AphiaID 207674)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 4372624)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia