鳃盖孔

opercular valve

opercular part, frontal operculum; 额叶岛盖部与三角部后区在优势半球合称言语

opercular bone, operculum

frontal operculum【解剖】;opercular part【解剖】;operculum frontale【解剖】

opercular membrane

opercular muscle

opercular gill

opercular process