This unnamed race is a race of alligator-like humanoids who serve in the Frieza Force. The most prominent member of this race is Blueberry who wished to get rid of Frieza's control.
Soldiers similar to Blueberry are enemies in Dragon Ball Z: The Legacy of Goku and in Dragon Ball Z: Sagas where they have either green or red skin.
During the time of Dragon Ball Z: Resurrection ‘F’, members of this race can be seen as part of Frieza's 1000 soldier army who he brought to Earth to have his revenge at the Dragon Team. One of them can be seen charges at Master Roshi in "Resurrection ‘F’" manga. This mean they had previously worked under Sorbet as well.
Members of this race appear as regular enemies in Dragon Ball Z: Dokkan Battle. They're later revealed in the game as part of the more serious faction: the Frieza Force.