The species is particularly characterized by its double columellar processes in the apertural dentition, a splendid discriminating character in shell morphology in this group.
Cruising is distinguished from regular driving by the social and recreational nature of the activity, which is characterized by an impulsively random, often aimless course.
Volcanic eruptions can generally be characterized as either explosive eruptions, sudden ejections of rock and ash, or effusive eruptions, relatively gentle outpourings of lava.