2 literature references for Luffaria digitata Carter, 1885:

Author: Hooper, J.N.A.; Wiedenmayer, F.
Year: 1994
Title: Porifera.
Author: Carter, H.J.
Year: 1885
Title: Descriptions of Sponges from the Neighbourhood of Port Phillip Heads, South Australia.
Source: Annals and Magazine of Natural History (5) 15(87): 196-222.