Excitatory neurotransmitters that directly modulate chromatophore function by activating chromatophore expansion at the chromatophore neuromuscular junction. FIRF-amide. ALSGDAFLRF-amide. FLRF-amide. FMRF-amide 1. FMRF-amide 2. FMRF-amide 3. FMRF-amide 4. FMRF-amide 5. FMRF-amide 6. FMRF-amide 7. FMRF-amide 8. FMRF-amide 9. FMRF-amide 10. FMRF-amide 11. Belongs to the FARP (FMRFamide related peptide) family.