The tarrada, also known as a tarrada cruiser, was a frigate-equivalent starship used by the Hutts. A number of cruisers were deployed at the First Battle of Vontor. During the Second Galactic Civil War, they were used in the Second Battle of Balmorra and the Battle of Kuat.
Sources
Xim Week: The Despotica (Part I) on Hyperspace (article) (content obsolete and backup link not available)- The Essential Guide to Warfare
External links
Star Wars Books (@starwarsbooks) on Facebook (post on November 21, 2011): "Approved concept sketches by Darren Tan for the various ships that will comprise the fleet of vessels constructed by the Hutts after the Yuuzhan Vong war." (screenshot)
Concept sketches for the Batil, Chelandion, and Tarrada starships by Darren Tan for The Essential Guide to Warfare.