Collections Search for objects: 1 matching record Animal/vegetable/mineral Zoology (1) Taxonomic groups Hygrosoma petersiiAnimalia (1)Echinodermata (1)Echinoidea (1)Echinothuriidae (1)Echinothurioida (1)Hygrosoma (1) Name Hygrosoma petersii (1) Area or Water body Mid Atlantic Ridge (1)Western Central Atlantic Ocean (1) Holding institution Natural History Museum, London (1) Station 13 (1) Sea urchin (Hygrosoma petersii) [1]