Tridacninae
| Tridacninae | |
|---|---|
| Two "giant clams", from the two current genera : Hippopus hippopus & Tridacna squamosa. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Bivalvia | 
| Order: | Cardiida | 
| Family: | Cardiidae | 
| Subfamily: | Tridacninae Lamarck, 1819 | 
| Genera | |
| See text | |
Tridacnidae, common name the giant clams, is a taxonomic subfamily of very large saltwater clams, marine bivalve molluscs in the family Cardiidae, the cockles.