2 literature references for Isodictya gracilis Bowerbank, 1866:

Author: Bowerbank, J.S.
Year: 1866
Title: A Monograph of the British Spongiadae. Volume 2. (
Source: Ray Society: London): i-xx, 1-388.
Author: Van Soest, R.W.M.; Hajdu, E.
Year: 2002
Title: Family Esperiopsidae Hentschel, 1923.