Vexillum obeliscus
Vexillum obeliscus, common name the obelisk mitre, is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters.
Description
The shell size varies between 20 mm and 45 mm.The shell is acuminately turreted. The spire is sharp. The whorls are longitudinally ribbed. The ribs are narrow and close-set. The interstices are impressly cancellated. The shell is yellowish brown, encircled with a single white line. The columella is four-plaited. The base is recurved in a twisted manner.
The shell is chestnut-brown, with a central white band, and sometimes an inferior narrower one.
The shells are extremely variable in sculpture and other morphological features.