Almeida, A. C., F. B. Souza, C. Menegola, and L. M. Vieira. “Diversity of Marine Bryozoans Inhabiting Demosponges in Northeastern Brazil”. Zootaxa, vol. 4290, no. 2, July 2017, pp. 281–323, doi:10.11646/zootaxa.4290.2.3.