Phormosomatidae is a family of echinoderms belonging to the order Echinothurioida. Genera: Hemiphormosoma Mortensen, 1934 Paraphormosoma Mortensen, 1934...
Kamptosomatidae Mortensen, 1934 Genus Kamptosoma Mortensen, 1903b Family Phormosomatidae Mortensen, 1934 Genus Hemiphormosoma Mortensen, 1934 Genus Paraphormosoma...