We are not sure of this classification of this bivalve but just had to use this image that Ryan took at Race Rocks, as it shows association with two other classes of Molluscs, the chitons and the gastropods.
Here is a possible classification from ITIS Report
Animalia: – animals
Genus: Macoma (Leach,) 1819
Species: Macoma brota Dall, 1916 – heavy macoma
|Return to the Race Rocks Taxonomy and Image File|
|The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams. Dec 2005–Ryan Murphy|