The lateral chordotonal sensory axons arrest at variable stages before reaching the central nervous system (CNS); 68% extend towards the intersegmental nerve (ISN) and stall or fail to reach the ISN, 32% travel a significant distance within the ISN, but none of the axons reach the CNS border. Defects in LCH dendrite morphology are seen in shot²/shot³ mutant embryos. 6% of ISN axons lack the most dorsal terminal arborisation, 48% lack the 2 most dorsal terminal arborisations and 43% lack all three terminal arborisations in shot²/shot³ embryos. 57% of ISNb motor axons stall in the ventral muscle field (somewhere between muscle 6 and muscle 13) and 30% stall at the muscle field border. 46% of SNa axons have one branch missing (wild-type axons form two branches) and 28% lack both branches.

Mutant phenotype as assayed by Ecol\lacZ^rp staining: the termini of RP1 and RP3 segmental motor nerve axons missing. Mutant phenotype of lateral chordotonal axons includes: shorter axons.