Divaricella quadrisulcata, or the cross-hatched lucine, is a species of marine bivalve mollusc in the family Lucinidae.

[2][3] The shells of D. quadrisulcata have been used as jewelry and can be collected along the shore in many Atlantic coastal states in North America.

[2] Members of the Lucinidae family often have concentric ridges that run parallel to the growth patterns of the shell.

[5] These organisms, like all bivalves, also have a mantle, a style, gills, two adductor muscles, a digestive tract, gonads, and a foot for movement.

[6] Within the stomach, a crystalline structure called the style helps to capture the food and move it farther into the digestive tract.

[2] The heel of the organism is often used for movement and digging, and the worm-shaped part of the foot is used to form a tube that extends to the surface.

To reach the surface, as well as to help extend the heel when burrowing, the worm-shaped part of the foot can stretch up to six times the length of the D. quadrisulcata shell.

[2] D. quadrisulcata are found in sandy, shallow areas, often providing a food source for Naticidae moon snails.