CHILEAN MUSSEL

The Chilean mussel, Mytilus chilensis, can reach a maximum length of 12 cm. Its distinguishing features are similar to those of related species, with a shell that is elongated, equivalve and subconical in shape.

As for the margins, the upper edge is typically curved, while the lower margin is slightly convex or straight.

On the inner surface of the valves, the impression of the adductor muscle merges with that of the posterior retractor muscle. The anterior adductor muscle scar is also present, small but very visible.

Additional information:

• the umbo is pointed and located at the terminal end of the shell;
• the external surface is covered by a thin, glossy periostracum;
• the shell features concentric growth lines.

External coloration is brownish, while the interior is pearly. As with the Giant Mussel, this species is primarily distributed in the Pacific Ocean, especially along the coastal waters of Chile.