Bioeroding sponge species from the Wakatobi region of southeast Sulawesi Indonesia Author Marlow, Joseph Author Bell, James J. Author Shaffer, Megan Author Haris, Abdul Author Schönberg, Christine Hanna Lydia text Zootaxa 2021 2021-07-02 4996 1 1 48 journal article 10.11646/zootaxa.4996.1.1 1175-5326 5073343 F398F5CE-82CA-48E2-98BA-9B59AF27DB5D Genus Zyzzya de Laubenfels, 1936 Diagnosis. Acarnid genus with bioerosion capability, with alpha- or beta-endolithic habit, or as free-living sponges. Endolithic forms small-fistulate. Ectosomal skeleton tangential, choanosomal skeleton largely unordered. Silicate spicules diactine megascleres, as apically microspined tylotes and acanthostrongyles. Latter can have spination in regular arrangement as rings. Microscleres toxae or chelae, if present. Commonly strongly pigmented.