| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| BIT,2 | BITTERN[115][1281]; | TR.DR | S | MEX |
| BIZ | BIZEL | TR.AE | W | FRA:SOGROUP |
| BJ66 | BAJIO-66[114][144][900][1281]; | TR.AE | S | MEX |
| BJ67 | BAJIO-67[114][144][900][1281]; | TR.AE | S | MEX |
| BJY | BLUEJAY[114][144][900][1281]; | TR.AE | S | MEX |
| BK | BOKAL[219][900]; | TR.AE | S | AUS |
| BLA,2 | BUCEPHALA[115]; | TR.DR | S | MEX |
| BLDU | BUCK-LA-DULCE[145][1281]; | TR.AE | S | ARG |
| BLI85 | BALCILI-85[115][1281]; | TR.DR | S | TUR |
| BLKN | BALKAN[1281]; | TR.AE | W | YUG |
| BLN | BELINDA[219][900][1281]; | TR.AE | W | USA |
| BLO | BOLILLO[114][144][900][1281]; | TR.AE | S | MEX |
| BLS | BLUE-SILVER[114][144][900][1281]; | TR.AE | S | PAK |
| BLT,1 | BLUETIT[114][144][900][1281]; | TR.AE | S | MEX |
| BLT,2 | BALATUTA | TR.DR | ||
| BLY | BAILEY-4287[1281]; | TR.AE | W | USA |
| BMAN | BUCK-MANANTIAL[145][144][900][1281]; | TR.AE | S | ARG |
| BMAP | BUCK-MAPUCHE[145][1281]; | TR.AE | S | ARG |
| BMEC | BUCK-MECHONGUE[145][900][1281]; | TR.DR | S | ARG |
| BMECH | BUCK-MECHONGUE[145] | TR.DR | S | ARG |