A Dosi male.
The Dosi were a humanoid civilization native to the Gamma Quadrant, and allies of the Dominion. The Dosi place great importance on business and are extremely aggressive negotiators, to the point that fatalities are not uncommon.
The Ferengi, represented by Quark and Pel, negotiated with the Dosi in 2370 to purchase a 100,000 vats of tulaberry wine. When the Dosi were unable to fulfill the demand, they referred the Ferengi to the Karemma, an important commercial member of the Dominion. (DS9: "Rules of Acquisition")