To search for terms starting with a certain letter, click a letter in the bar below.

L

lateral teeth

Hinge teeth located far away from the umbo in a heterodont hinge.

law

An established principle thought to be universal and invariable; see also hypothesis, theory.

ligament

Elastic uncalcified structure that connects the two bivalve shells at the hinge line and functions as a spring to open the valves when the adductor muscles relax.

lineage

Line of descent from an ancestor.