noun
noble scallop
Scientific name Chlamys nobilis. A species of scallop known for its colorful shell.
ヒオウギガイの貝殻はとてもカラフルです。
The shell of the noble scallop is very colorful.
The name likely comes from the resemblance of the shell's pattern to a traditional folding fan (檜扇, ひおうぎ).