Sasanohabera and several types of wrasse called kyüsen are colourful fish which come under the general heading of bera or gizami. Could you send details (and a picture) to queries@whatamieating.com if you know more?
Conger eel. Raw slices are used in sushi. At its best in July and August. There are two different conger eels: Anago anago is goten-anago and Conger myriaster is ma-anago.
"Dancing mushroom." Hen of the woods or maitake mushroom. A frilled fungus with many caps that grows on trees and which is edible when it is very young.
