Composite - mixed images
External
External - detail of junction of Zones B and C (face and mantle)
External - detail of labiate process (rimoportula)
External - detail of mantle area strutted process (fultoportula)
External - detail of mantle at first girdle band opening
External - detail of Zone A (central area)
External - detail of Zone B (strial area)
External - detail of Zone C (mantle area)
External - girdle view - girdle bands
External - girdle view - whole cell
External - pattern of girdle band openings
External - whole valve
External - whole valve - strongly tilted
Internal
Internal - detail of junction of Zones B and C (face and mantle)
Internal - detail of central area strutted process (fultoportula)
Internal - detail of labiate process (rimoportula)
Internal - detail of mantle area strutted process
internal - detail of Zone B (strial area)
Internal - detail of Zone C (mantle area)
Internal - whole valve
Internal - whole valve - strongly tilted
Internal detail of mantle at first girdle band opening
Transmission (LM or TEM)