Spongia fragilis n.sp. Montagu, 1818: 114, pl. XIV figs. 1-2; Templeton, 1836: 470.
Spongelia fragilis : Hanitsch, 1890: 198; Stephens, 1912: 39; Arndt, 1913: 112; Stephens, 1917: 14; Burton, 1930a: 496; Topsent, 1932: 2.
Dysidea fragilis : Norman, 1869: 299; Fristedt, 1885: 51, pl. IV fig. 4; Higgin, 1886: 76; Burton, 1934b: 583; Burton, 1957: 31; Bruce et al., 1963: 45; Borojevic et al., 1968: 28; Descatoire, 1969a: 202; Hamond, 1970: 87; Könnecker, 1973: 459; Cabioch, 1973: 5; Frith, 1976: 356; Van Soest et al., 1981: 48; Durán and Solórzano, 1982: 52; Lombas, 1982: 46; Ackers, 1983: 162; Hiscock et al., 1983: 28, pl. 4d; Ackers et al., 1985: 189, figs. 20-21, 111;
Duseidea fragilis : Burton, 1931: 169.