Maturin's species

From Memory Alpha, the free Star Trek reference.

Maturin's species were a race of humanoids from the Alpha or Beta Quadrant. Their appearance was similar to Humans, except for an upturned nose which transitioned into a ridge extending to the forehead.

This species had encountered the Federation prior to 2370. One member of this species, Maturin, was governor of Caldos colony in 2370. (TNG: "Sub Rosa")