Summary[edit] Description: Two rock shells Thais clavigera (Küster, 1860) (Gastropoda: Sorbeoconcha: Neogastropoda: Muricidae) and their egg capsules. A darker shell on the left above is probably Thais bronni (Dunker, 1860). Loc: Miura Peninsula , Kanagawa, Honshu, Japan. ja: イボニシとその卵嚢群。左上の黒っぽい貝はレイシガイ。神奈川県三浦半島。. Date: 25 August 2006. Source: my own file. Author: me. Permission (Reusing this file): PD.