Cliona minuscula, sp. nov. (Hadromerida: Clionaidae) and other bioeroding sponges that only contain tylostyles Author Schönberg, Christine Hanna Lydia Author Grass, Stefanie Author Heiermann, Anke Tarja text Zootaxa 2006 1312 1 24 journal article 10.5281/zenodo.173882 21e56974-f8d1-4720-bca8-abc954639208 1175­5326 173882 Cliona celata Grant, 1826 Diagnosis Clionaidae in, and growth form, with tylostyles as megascleres; microscleres, if present, spirasters or raphides, which may vary in form. Synonymies given by Rützler (2002b) .