Ribeiro, S.M. and Muricy, G. 2004. Four new sympatric species of Tethya (Demospongiae: Hadromerida) from Abrolhos Archipelago (Bahia State, Brazil). Zootaxa. 557, 1 (Jul. 2004), 1–16. DOI:https://doi.org/10.11646/zootaxa.557.1.1.