Triphoridae – Triphorinae: Costatophora granifera (Brazier, 1894) (‘grainy sinistral-creeper’)

Synonym(s): granifera Brazier, 1894 adela Thiele, 1930 albina Thiele, 1930 jacksonensis Laseron, 1954 pocula Laseron, 1954 topazica Laseron, 1954.

Typical shell-length 5.8 mm. Lives intertidally to offshore amongst sponges. Native. Endemic to southeastern and southwestern Australia (NSW, TAS, VIC, SA and WA).