Amathinidae: Leucotina casta (A. Adams, 1853) (‘stylish amathina’)
Synonym(s): casta A. Adams, 1851 concinna A. Adams, 1854 bulimoides Tenison-Woods, 1877 punctato-striata Tenison-Woods, 1879.
Typical shell-length 10 mm. Lives subtidally and offshore as an ectoparasite of other invertebrates. Native. Occurs in southeastern and southwestern Australia (QLD, NSW, TAS, VIC, SA and WA); also elsewhere in the Pacific Ocean.
Order: Lower Heterobranchia