Dicathais orbita Click to enlarge image
Cart-rut shell and egg capsules, Dicathais orbita Image: Dr Isobel Bennett
© Australian Museum

Fast Facts

  • Classification
    Species
    orbita
    Genus
    Dicathais
    Order
    Sorbeoconcha
    Class
    Gastropoda
    Phylum
    Mollusca
    Kingdom
    Animalia
  • Size Range
    7-8 cm

When it was first discovered, this species was named the Cart-rut Shell because the grooves resembled the narrow, deep wheel ruts of the horse-and-carriage vehicles of the day.

Identification

The Cart-rut Shell is a large white snail with deep, parallel ridges or grooves in its shell.

Habitat

The Cart-rut Shell lives on intertidal rock platforms.

Distribution

The Cart-rut Shell is found in Southern Queensland, New South Wales, Victoria, South Australia to Western Australia.

Other behaviours and adaptations

The Cart-rut Shell has a canal at the front edge of its shell, through which it siphons water to detect its prey.