Regular Cone Shell, Conus regularis

Regular Cone Shell, Conus regularis. Shell collected off the beach in the greater Los Cabos area, Baja California Sur, April 2015. Size: 5.5 cm (2.2 inches) x 2.3 cm (0.9 inches).

The Regular Cone, Conus regularis (G.B. Sowerby I, 1833), is a gastropod mollusk that is a member of the Conidae Family of Cones. The shells are variable in shape and coloration. Some have high, concave, stepped spires; others have lower, more blunt, spires. The shell is ivory in color with a brown, purplish brown, tan or white aperture. They may be marked with irregular streaks running along the body, or with blotches and spots, spiraling down the body. The markings may be brown to purplish brown. Regular Cone shells reach a maximum of 8.6 cm (3.4 inches) in length and 3.6 cm (1.4 inches) in height.

Regular Cones are found with sand and mud substrate in the intertidal zone to depths up to 90 m (295 feet). They range from Magdalena Bay, Baja California Sur to at least Panama, and possibly Peru, and are found throughout the Sea of Cortez.

Synonyms include Conus angulatus, Conus incurvus, Conus magdalennensis, and Conus syriacus and Gradiconus regularis.