Cinachyrella australiensis. A, C, E-H, LRMNH.POR.11139, Kakaban lake, Indonesia (left side) B, D, I-K, M holotype NHMUK 1886.12.15.367, Port Phillip Heads, Australia (right side) A In situ photograph showing porocalices B dry specimen, lateral view C skeleton showing acanthose microxeas (am) and radial bundles with oxeas D spicule montage showing acanthose microxeas (am), and oxeas (ox) E protriaene F anatriaene G Acanthose microxea, full lenght H acanthose microxea, detail I acanthose microxea, full length J acanthose microxea, detail K oxea, end detail L, M sigmaspires. Scale bars: 1 cm(B); 500 μm (C, D); 20 μm (E–G, I); 5 μm (H, J, L, M); 50 μm (K).