9. Echinoderm Mitochondrial; Flatworm Mitochondrial
| TTT F Phe | TCT S Ser | TAT Y Tyr | TGT C Cys |
| TTC F Phe | TCC S Ser | TAC Y Tyr | TGC C Cys |
| TTA L Leu | TCA S Ser | TAA * Ter | TGA W Trp |
| TTG L Leu | TCG S Ser | TAG * Ter | TGG W Trp |
| CTT L Leu | CCT P Pro | CAT H His | CGT R Arg |
| CTC L Leu | CCC P Pro | CAC H His | CGC R Arg |
| CTA L Leu | CCA P Pro | CAA Q Gln | CGA R Arg |
| CTG L Leu | CCG P Pro | CAG Q Gln | CGG R Arg |
| ATT I Ile | ACT T Thr | AAT N Asn | AGT S Ser |
| ATC I Ile | ACC T Thr | AAC N Asn | AGC S Ser |
| ATA I Ile | ACA T Thr | AAA N Asn | AGA S Ser |
| ATG M Met i | ACG T Thr | AAG K Lys | AGG S Ser |
| GTT V Val | GCT A Ala | GAT D Asp | GGT G Gly |
| GTC V Val | GCC A Ala | GAC D Asp | GGC G Gly |
| GTA V Val | GCA A Ala | GAA E Glu | GGA G Gly |
| GTG V Val i | GCG A Ala | GAG E Glu | GGG G Gly |
Differences from the Standard Code:
| Code 9 | Standard | |
| AAA | Asn N | Lys K |
| AGA | Ser S | Arg R |
| AGG | Ser S | Arg R |
| UGA | Trp W | Ter * |
