Family Pisaniidae

Shell size up to 34 mm; shell with pointed spire, aperture less than half shell length. Sculpture of 8-9 rounded axial ribs crossed by weak spiral threads. Whorls shoulders strongly angled. Columella with single fold. Outer lip denticulated inside. Color variable, usually whitish or grayish, marked with brown, orange-brown, or entirely brown. The external surface of the shell can be almost entirely orange, as shown in the second image. Aperture pink or whitish. The stalked egg cases have a flattened top surface with projections resembling the arms of a star.

Shell size to 38 mm; shell fusiform, thick, with conical spire. Sculpture of low axial ribs crossed by numerous, weak spiral lines. Aperture oval, outer lip thick. Anterior canal short, posterior canal present. Color mottled reddish-brown and white, sometimes with axial brown bands. Egg capsules are spherical, depressed in the center, and are attached to hard surfaces by a round base. The photos of the live animal and egg cases were taken by Robert Bachand in Estero Bay. The image with three living individuals was taken by José H Leal in Tampa Bay on November 2019. The last image shows an immature specimen.