Corvallen

The Corvallens are a humanoid species.

In 2369, a Corvallen freighter was hired by Spock's Reunification Movement to transport Proconsul M'ret and his aides from the. Deanna Troi, aboard the Khazara and disguised as a Romulan, sensed that the Corvallen captain was lying about delivering the "cargo" safely and Subcommander N'Vek destroyed the freighter. 

Subcommander Plactus had heard of the destruction of the Corvallen freighter and inferred to Troi when he met her that he knew she was involved. 

In 2375, Laas escaped Deep Space 9 in his assumed space-dwelling lifeform guise by shadowing a Corvallen freighter that was leaving the station.