トゲトゲしているマナマコ。 The spiny Japanese sea cucumber.Scientific Name : Apostichopus japonicus Family: Stichopodidae Order: Aspidochirotida Photo taken at Aquamarine Fukushima

棘の先端が白いのでツマジロナガウニと言います。 The main feature of this sea urchin is that the spine tip is white.Scientific Name : Echinometra tsumajiro Family: Echinometridae Order: Echinoida Photo taken at Aquamarine Fukushima

Scientific Name : Fromia monilis Family: Ophidiasteridae Order: Valvatida Photo taken at Aquamarine Fukushima

マヒトデ 人間のアイコンみたいなヒトデさん。 A human icon like starfish.Scientific Name : Asterias amurensis Family: Asteriidae Order: Forcipulatida Photo taken at Aquamarine Fukushima