Photo of 4N (ventral)
ventral

Photo of 4N (dorsal)
dorsal

Photo of 4N (side)
side

Drawing of 4N (ventral)
ventral

Drawing of 4N (side)
side

Notes:

  • was also called BZ

Measurements:

  • Length: 128 μm
  • Width: 88 μm

Glossary: