USS Ronquil (SS-396), a Balao-class submarine, was the only ship of the United States Navy named for the ronquil, a spiny-finned fish found along the northwest coast of North America. It has a single dorsal fin and a large mouth and resembles the tropical jawfish. Ronquil was laid down 9 September 1943 at the Portsmouth Navy Yard, in Kittery, Maine; launched 27 January 1944, sponsored by Mrs. C. M. Elder; and commissioned 22 April 1944, Lieutenant Commander Henry S. Monroe in command.