| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| YU17 | YU-17[1281]; | TR.DR | S | MEX |
| YU16 | YU-16[1281]; | TR.DR | S | MEX |
| YU15 | YU-15[1281]; | TR.DR | S | MEX |
| YU14 | YU-14[1281]; | TR.DR | S | MEX |
| YU13 | YU-13[1281]; | TR.DR | S | MEX |
| YU12 | YU-12[1281]; | TR.DR | S | MEX |
| YU1 | YU-1[1281]; | TR.DR | S | MEX |
| YU11 | YU-11[1281]; | TR.DR | S | MEX |
| YU10 | YU-10[1281]; | TR.DR | S | MEX |
| YCO | YRELLOURICO[1281]; | TR.AE | CYP | |
| YUB | YOU-BAO[1281]; | TR.AE | CHN | |
| YW | YORKWIN[1281]; | TR.AE | W | USA |
| Yw | YORKWIN[1112] | |||
| YS | YORKSTAR[1281]; | TR.AE | W | USA |
| YE | YOREME-75[3692] | TR.SE | S | MEX |
| YOMH | YOMOUNHONG[1281]; | TR.AE | CHN | |
| YKZ | YOKOZAWA[1281]; | TR.AE | JPN | |
| YOI | YOING[1281]; | TR.AE | S | ARG |
| YOBILO | YOBILO-INIA[1281] | TR.AE | S | CHL |
| YBD | YOBDA[1281]; | TR.AE | CHN |