![banner3 Molluscs of Tasmania](https://molluscsoftasmania.org.au/wp-content/uploads/2017/07/banner3.jpg)
Trigoniidae: Neotrigonia gemma Iredale, 1924 (‘gem brooch-shell’)
Synonym(s): gemma Iredale, 1924.
Typical shell-length 15 mm. Lives in offshore waters. Native. Endemic to eastern Australia (QLD, NSW, TAS and VIC). In Tasmanian waters, this species is currently known only from a couple of records from off the southeast coast.
Classification
Class: Bivalvia
Subclass: Palaeoheterodonta
Order: Trigonioida
Superfamily: Trigonioidea
Family: Trigoniidae
Genus: Neotrigonia
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/10/Neotrigonia-gemma_a.jpg)
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/10/Neotrigonia-gemma_b.jpg)
![locality map](https://molluscsoftasmania.org.au/wp-content/uploads/2017/10/Neotrigonia-gemma.jpg)
no coastal locality records for this species currently available