![banner3 Molluscs of Tasmania](https://molluscsoftasmania.org.au/wp-content/uploads/2017/07/banner3.jpg)
Pyramidellidae – Odostomiinae: Pseudorissoina exserta Laseron, 1951 (‘tapered pyramid-shell’)
Synonym(s): exserta Laseron, 1951.
Typical shell-length 4.2 mm. Lives in offshore waters as an ectoparasite of other invertebrates. Native. Endemic to southeastern Australia (NSW and TAS).
Classification
Class: Gastropoda
Subclass: Heterobranchia
Order: Lower Heterobranchia
Superfamily: Pyramidelloidea
Family: Pyramidellidae
Subfamily: Odostomiinae
Genus: Pseudorissoina
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/12/Pseudorissoina-exserta.jpg)
![locality map](https://molluscsoftasmania.org.au/wp-content/uploads/2017/11/Melanella-mamilla.jpg)
no coastal locality records for this species currently available