MACTRIDAE (Mactras)

Seashells

Mactra contraria (Contrary Mactra)

Mactridae, also known as surf or trough shells or duck clams, is a family of marine bivalve clams of the order Veneroida.

Moderately thick, triangular in outline,

Photo: Robert Whyte

Mactra contraria (Contrary Mactra)

Trough clams resemble eugaries, but more triangular. white to straw-coloured, to 65mm.

Photo: Robert Whyte

Mactra eximia (A Trough Clam)

Animals live in shallow, subtidal sand, shells often beach-washed.

Photo: Robert Whyte

Mactra eximia (A Trough Clam)

Widespread species, Queensland to north-western Australia.

Photo: Robert Whyte