Ellobius

Ellobius is a genus of rodents in the family Cricetidae. It contains two (E. lutescens and E. tancrei) of the handful of examples of mammal species that have lost the Y chromosome.

The genus has the following species:
 * Alai mole vole (Ellobius alaicus)
 * Northern mole vole (Ellobius talpinus)
 * Zaisan mole vole (Ellobius tancrei)

Two members of this genus were moved to the genus Bramus:
 * Southern mole vole (Bramus fuscocapillus)
 * Transcaucasian mole vole (Bramus lutescens)