Choose Options Compare Quick view Marble Cone Seashell $2.00 - $3.00 Marble Cone Seashell (Conus marmoreus) Marbled cone snails are marine gastropod mollusks with intricately patterned shells that are roughly shaped like an ice cream cone. The marbled cone shell come black with white dots or patterns. Marble cone snails... $2.00 - $3.00 Choose Options Compare Quick view