Body shape slug-like with shell. Gill structures internal. Pattern includes shades or colours of white. Animal up to 5 cm long, shell up to 3 cm across.
This species lays a balloon-like egg mass, anchored by a thread to larger sand grains or shell fragments. It is sometimes confused with the naticid gastropod Sinum zonale which has similar body shape and colour, and a partly exposed solid shell.
Sandy mud areas such as protected shallow water embayments, to depth of 500 m.
New Zealand and southern Australia.
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed