| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| Y53 | YAQUI-53[1281]; | TR.AE | S | MEX |
| Y53A | YAQUI-53-A[1281]; | TR.AE | S | MEX |
| Y54 | YAQUI-54[1281]; | TR.AE | S | MEX |
| Y54A | YAQUI-54-A[1281]; | TR.AE | S | MEX |
| YA | YAMESEK[1281]; | TR.AE | ||
| YAA6 | YAA-6[1281]; | TR.AE | CHN | |
| YAC305 | YAYCA-305[1281]; | TR.AE | TUR | |
| YAN | YAN-AN-18[1281]; | TR.AE | CHN | |
| YANG | YANG-QI[3692]; | TR.DR | S | MEX |
| YANG1 | YANG-QI-1[1281]; | TR.DR | S | MEX |
| YANG2 | YANG-QI-2[1281]; | TR.DR | S | MEX |
| YANG3 | YANG-QI-3[1281]; | TR.DR | S | MEX |
| YANG4 | YANG-QI-4[1281]; | TR.DR | S | MEX |
| YANG5 | YANG-QI-5[1281]; | TR.DR | S | MEX |
| YANG6 | YANG-QI-6[1281]; | TR.DR | S | MEX |
| YAPA | YAPACANI[1765] | TR.AE | S | BOL |
| YAR | YANTAR,BGR[3733] | TR.AE | W | BGR |
| YAV | YAVAROS[3692]; | TR.DR | S | MEX |
| YAV1 | YAVAROS-1[1281]; | TR.DR | S | MEX |
| YAV10 | YAVAROS-10[2964]; | TR.DR | S | MEX |