Stage 16 Lateral

P1, P2l, P3m, P4l, P4m, P5l: fiber tract founder clusters of the protocerebrum

mc: late developing FasII-positive neuronal clusters into medial cervical tract

pc: late developing FasII-positive neoronal clusters into posterior cervical tract

fg: frontal ganglion

lp: late developing FasII-positive neuronal clusters into lat. protocerebral tract

LT: lateral tract of cervical connective

PT: posterior tract of the cervical connective

D/T: fiber tract founder cluster at the deutero- and tritocerebrum

IT: intermediate tract

ol: optic lobe

LPT: lateral protocerebral tract

DCT: dorsal commissural tract(s)

VCT: ventral commisural tract

SCO: subesophageal commisure

FC: frontal connective

CC: corpora cardica