Sea stars in family under glass

Starfish collection displayed in a traditional Napoleon III glass globe . A family whose members are very different: from the Pacific sea "thorn crown" (acanthaster planci ) with 23 arms: the coral reef devourer., to the very thin ophiure with tiger legs ( Ophiolepis superba) of the red sea, or the one whose star shape is barely guessed: a starfish cushion: Culcita Novaeguineae who lives in the coral reefs of Indonesia, where she can swallow prey bigger than her mouth -like a sea urchin- by "robbing" her stomach (=by taking it out of her body by the mouth) in order to digest its prey on the outside, and then re-insert his stomach with full digestion.... Beautiful family reunions in perspective!