| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| M.SAD | MARIZA-SADOVO | TR.DR | ||
| MA | MICHIGAN-AMBER[1112][1281]; | TR.AE | USA | |
| MA10 | MALIANI-10 | TR.DR | S | ITA |
| MA13 | MALIANI-13 | TR.DR | S | ITA |
| MAD,1 | MADEIRA[114][144][1281]; | TR.AE | S | MEX |
| MAGH72 | MAGHREBI-72[115][1281]; | TR.DR | S | TUN |
| MAI | MAIPO[114][144][1281]; | TR.AE | S | MEX |
| MAIT | MAITEN-INIA[145][144][1281]; | TR.AE | S | CHL |
| MAK,2 | MARZAK[115]; | TR.DR | S | MAR |
| MAL,1 | MALIANI[1281]; | TR.DR | S | ITA |
| MALA | MARILA[115][1281]; | TR.DR | S | MEX |
| MAR,1 | MARPIFLOR[1281]; | TR.AE | W | |
| MAR,3 | MARS[115] | TR.DR | S | MEX |
| MARM | MARMARA-86[144][1281] | TR.AE | TUR | |
| MAS1 | MASSAUX-1[145][1281]; | TR.AE | S | ARG |
| MAS3 | MASSAUX-3[145][1281]; | TR.AE | S | ARG |
| MAS5 | MASSAUX-5[145][1281]; | TR.AE | S | ARG |
| MASC | MASCARENHAS[145][145]; | TR.AE | S | BRA |
| MASDR | MASSAUX-DON-RENE[145][1281]; | TR.AE | S | ARG |
| MASG | MASSAUX-GOLONDRINA[145][1281]; | TR.AE | S | ARG |