Grey Mactra

Mactra is a large genus of medium-sized marine bivalve mollusks or clams, commonly known as trough shells or duck clams. Mactra is the type genus within the family Mactridae. The word "trough" in the common name refers to the fact that all Mactra shells have a large ligamental pit at the hinge line, which in life contains a large internal ligament.

Mactra glauca, la mactre fauve ou mactre glauque est une espèce de mollusques bivalves marins de la famille des Mactridae.

Mulinia edulis, conocida como taquilla, colhue o almeja dulce​ es un molusco bivalvo de la familia Mactridae. Características De forma triangular oval, sus valvas son de color blanco amarillento con líneas concéntricas. Mide de 34 mm a 77 mm de largo, considerándose una medida mínima de extracción que sea mayor o igual a 55 mm.