Clam

Clam is a general term covering all bivalve mollusks. The word can also be used in a more limited sense, to mean bivalves which burrow in sediment, as opposed to ones which attach themselves to the substrate (for example oysters and mussels), or ones which can swim and are migratory, like scallops. In addition the word "clam" can be used in an even more limited sense, to mean one or more species of commonly consumed marine bivalves, as in the phrase clam chowder, meaning a thick shellfish soup usually made using the hard clam.

Clams are native to Earth, and have been introduced to UNSC colonies such as Emerald Cove. SPARTAN-IIs John-117, Grace-093, Frederic-104, and Anton-044 enjoyed baking clams during a training mission on Emerald Cove.