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List-Armitage, S.E.; Hooper, J.N.A. (2002). Discovery of Petromica Topsent in the Pacific Ocean: a revision of the genus with a new subgenus (Chaladesma subgen. nov.) and a new species (P. (C.) pacifica sp. nov.), (Porifera: Demospongiae: Halichondrida: Halichondriidae). Invertebrate Systematics. 16 (5): 813-835.
List-Armitage, S.E.; Hooper, J.N.A. (2002). Discovery of Petromica Topsent in the Pacific Ocean: a revision of the genus with a new subgenus (Chaladesma subgen. nov.) and a new species (P. (C.) pacifica sp. nov.), (Porifera: Demospongiae: Halichondrida: Halichondriidae). Invertebrate Systematics. 16 (5): 813-835.
