Collections Search for objects: 2 matching records Animal/vegetable/mineral Zoology (2) Taxonomic groups Animalia (2)Echinodermata (2)Echinoidea (2)Hemiaster gibbosus (2)Hemiasteridae (2)Holanthus (2)Holanthus expergitus (2)Spatangoida (2) Name Hemiaster gibbosus Form Dry (2) Area or Water body Arafura Sea (1)Indonesia, near Aru Islands (1)Japan, Off Sagami Bay (1)Northwest Pacific Ocean (1) Holding institution Museum of Comparative Zoology, Harvard University Station 191 (1)232 (1) Sea urchin (Hemiaster gibbosus) Sea urchin (Hemiaster gibbosus) [1]