Emi's species
Emi's species were a humanoid alien species who had traveled to other worlds by the mid-22nd century. This species with cranial ridge, pronounced brow and a ridge below the lower lip on the chin. 

One was encountered on a moon of Pernaia Prime by the crew of the  in 2152. ()

At least two members of this species visited the space station Deep Space 9. ()

Individuals 
 List of Emi's species

Unnamed species