"Although the spicules shown by P. cineriformis resembled T. merguiensis, Dendy (1905) argues that the general aspect of the sponge was quite di erent as porocalices have no speci c arrangement and the layer of calthrops was more irregular than in Carter’s species." (Santodomingo & Becking, 2018).
Santodomingo, N.; Becking, L.E. (2018). Unravelling the moons: review of the genera <i>Paratetilla</i> and <i>Cinachyrella</i> in the Indo-Pacific (Demospongiae, Tetractinellida, Tetillidae). <em>Zookeys.</em> 791: 1-46. Available for editors [request]