Ultrastructure of scales in and around the scent glands patches of B. striata A Scent glands patches B Scales in the scent glands patches (S1: The first scale; S2: The second scale) C Ultrastructure of the first scale D Ultrastructure of the second scale E Scales around the scent glands patches (S3: The third scale; S4: The fourth scale) F Ultrastructure of the third scale G Ultrastructure of the fourth scale.