Petraliella concinna is found from the Great Barrier Reef region of Australia. The illustration shows autozooids, ovicells, and avicularia.
Original description: Schizoporella concinna Hincks, 1891
Locality: Port Denison, Queensland, Australia
Type specimen: BMNH 1899.5.1.1019
Description from Tilbrook & Cook, 2004 (PDF file)