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Trochidae – Halistylinae: Botelloides bassianus (Hedley, 1911) (‘Bassian top-shell’)
Synonym(s): bassianus Hedley, 1911 borda Cotton, 1944.
Typical shell-length 4.5 mm. Lives in offshore waters. Native. Endemic to southeastern and southwestern Australia (NSW, TAS, VIC, SA and WA).
Classification
Class: Gastropoda
Subclass: Vetigastropoda
Order: Vetigastropoda
Superfamily: Trochoidea
Family: Trochidae
Subfamily: Halistylinae
Genus: Botelloides
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2018/04/Botelloides-bassianus_a.jpg)
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2018/04/Botelloides-bassianus_b.jpg)
![locality map](https://molluscsoftasmania.org.au/wp-content/uploads/2018/04/Botelloides-bassianus.jpg)
no coastal locality records for this species currently available