| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| MULT14 | MULTIPLICATION-14[1281]; | TR.AE | S | BRA |
| MUN82 | MUN-82[1281]; | TR.AE | ||
| MUR | MIRADUR[1281]; | TR.DR | S | AUT |
| MUS,1 | MUSALA[114][144][1281]; | TR.AE | S | MEX |
| MWE | KENYA-MWEWE[115][1281]; | TR.DR | S | KEN |
| MX | MEXICO-120[1281]; | TR.AE | AUS | |
| MXC | MEXICANI[114][144][1281]; | TR.AE | SDN | |
| MXP | MEXIPAK[114][144][1281]; | TR.AE | S | PAK |
| MY54 | MAYO-54[144][1281]; | TR.AE | S | MEX |
| MY64 | MAYO-64[114][144][1281]; | TR.AE | S | MEX |
| MYJA | MOYJA-CIAT[144][1281] | TR.AE | S | BOL |
| MZ | MAZOE[144][1281]; | TR.AE | ZIM | |
| N | NEWTHATCH[144][1281]; | TR.AE | USA | |
| N10B | NORIN-10-BREVOR[1281]; | TR.AE | W | USA |
| NAC | NACOZARI-76[114][144][1281]; | TR.AE | S | MEX |
| NACH | NACHTREIHER[115][1281]; | TR.DR | S | MEX |
| NAD | NADADORES-63[114][144][1281]; | TR.AE | S | MEX |
| NAFN | NAOFEN[145][144][1281]; | TR.AE | S | CHL |
| NAI60 | NAINARI-60[144][1281]; | TR.AE | S | MEX |
| NAM | NAMBU[145][144][1281] | TR.AE | S | BRA,MEX |