A.巖鱗裂 B.鼓鱗裂 C.鼓乳裂 D.巖鼓裂 E.鼓溝
A.2根動纖毛與1根靜纖毛 B.1根動纖毛與10根靜纖毛 C.1根動纖毛與10~50根靜纖毛 D.1根動纖毛與50~110根靜纖毛 E.1根動纖毛與110~280根靜纖毛
A.15mm B.25mm C.45mm D.35mm E.55mm