| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| RNA | RAFAENA[1281]; | TR.AE | ||
| ROH | ROHRAMMER[115][1281]; | TR.DR | S | MEX |
| ROK | ROKEL[115][3692]; | TR.DR | S | MEX |
| ROM | ROMANY[114][144][1281]; | TR.AE | S | KEN |
| RON,1 | ROBIN-M[114][144][1281]; | TR.AE | S | MEX |
| RPE | RUSAPE[144][1281] | TR.AE | ZIM | |
| RPO | REDPOLL[114][144][1281]; | TR.AE | S | MEX |
| RQ | ROQUE-73[114][144][1281]; | TR.AE | S | MEX |
| RRV | RED-RIVER-68[114][144][1281]; | TR.AE | USA | |
| RRV68 | RED-RIVER-68 | TR.AE | S | USA |
| RS | RIO-SULINO[145][1281]; | TR.AE | S | BRA |
| RSC | RESCUE[1281]; | TR.AE | S | CAN |
| RSK | ROUSSALKA[144][1281]; | TR.AE | BGR | |
| RSL | RUSSELL,USA[1281]; | TR.DR | USA | |
| RSLL | ROSELLA[740]; | TR.AE | AUS | |
| RSS | ROUSSIA[1281]; | TR.DR | S | TUN |
| RTNI | RETACON-INTA[145][1281]; | TR.AE | S | ARG |
| RTRK | RATARKA[1281]; | TR.AE | W | YUG |
| RTS | RUST-TRANSLOCATION-STOCK[39]; | |||
| RTTE | ROLETTE | TR.DR | S | USA:NORTH-DAKOT |