Triphoridae – Triphorinae: Hedleytriphora basimacula B. A. Marshall, 1983 (‘blotched-based sinistral-creeper’)
Synonym(s): basimacula Marshall, 1983.
Typical shell-length 8.5 mm. Lives subtidally and offshore amongst sponges. Native. Endemic to southeastern and southwestern Australia (TAS, VIC, SA and WA).
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha