Ircinia variabilis (Schmidt, 1862)
| The Keratosa in a collection of Mediterranean sponges mainly from the Italian coasts G Pulitzer-Finali and R Pronzato (1981) Annali del Museo civico di storia naturale Giacomo Doria 83: 127-158 | |
| A collection of Mediterranean Demospongiae (Porifera) with, in appendix, a list of the Demospongiae hitherto recorded from the Mediterranean Sea (1982) Annali Del Museo Civico Di Storia Naturale "giacomo Doria" 84: 445-621 | |
| PHOTOADAPTATIONS OF THE CARIBBEAN COLONIAL ASCIDIAN-CYANOPHYTE SYMBIOSIS TRIDIDEMNUM SOLIDUM Richard Randolph Olson (1986) Biol Bull 170: 62-74 | |
| A collection of West Indian Demospongiae (Porifera). In appendix, a list of Demospongiae hitherto recorded from the West Indies (1987) Annali Del Museo Civico Di Storia Naturale "giacomo Doria" 86: 65-216 | |
| Sponge farming in the Mediterranean Sea: new perspectives R Pronzato (1999) Memoirs of The Queensland Museum 44: 485-491 |