![banner3 Molluscs of Tasmania](https://molluscsoftasmania.org.au/wp-content/uploads/2017/07/banner3.jpg)
Cassidae: Semicassis (Semicassis) TAS sp 01 (‘TAS sp 01 helmet’)
Synonym(s):
TAS sp 01
Typical shell-length 20 mm. Lives in offshore waters. Native. Occurs in southeastern Australia (TAS and perhaps other states).
Classification
Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha
Superfamily: Tonnoidea
Family: Cassidae
Subfamily: Cassinae
Genus: Semicassis
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/08/Semicassis-TAS-sp-01_a.jpg)
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/08/Semicassis-TAS-sp-01_b.jpg)
![locality map](https://molluscsoftasmania.org.au/wp-content/uploads/2017/08/Semicassis-TAS-sp-01.jpg)
no coastal locality records for this species currently available