The Minor Jacknife
The Minor Jacknife (Ensis megistus Pilsbry and McGinty, 1943) has a very delicate, elongate shell with an unusual coloration that includes purplish vertical bars internally. It is a burrower, living in fine sand and mud. Minor Jacknives inhabit and can move up and down vertical or oblique, cylindrical burrows. A Minor Jacknife can burrow rapidly by using its foot as a piston inside their dwelling. In some extreme cases, individuals are known to leap out of burrows to evade p