Spongia officinalis subsp. mediterranea var. mollissima sensu Hyatt, 1877
? Spongia mollissima Schmidt, 1862: 23 (currently Spongia (Spongia) mollissima).
Spongia officinalis subsp. mediterranea var. mollissima sensu Hyatt, 1877: 511, pl. 16 figs. 18–19.
Euspongia officinalis var. mollissima; Von Lendenfeld, 1889: 268.
Hyatt’s name is not an available name (as it has a fourth name, ICZN art. 45.5). I propose to assign this material from the Adriatic to Spongia (Spongia) mollissima Schmidt, 1862 .