Odontophore muscles (Figs 29-35): m1, several small muscle fibres connect buccal mass to adjacent inner surface of proboscis, one more developed pair originating in peribuccal
lateral region of proboscis, running posteriorly, inserting in lateral side of anterior third of odontophore (Fig.
They resemble Milnesium tardigradum in having claw configuration [2-3]-[3-2], six peribuccal
lamellae, a smooth cuticle, and accessory points on primary claw branches, but differ in having a having a more narrow posterior margin of the buccal tube and smaller claws relative to the length of the buccal tube.
organs of Placopecten magellanicus and Chlamys varia (Mollusca: Bivalva): structure, ultrastructure and implications for feeding.