USS Tullibee (SSN-597), a unique submarine, was the second ship of the United States Navy to be named for the tullibee, any of several whitefishes of central and northern North America. At 273 feet long and 2,640 tons displacement, USS Tullibee was the smallest nuclear-powered attack submarine in the US submarine fleet, although she was originally designed mainly for the anti-submarine (ASW) 'hunter-killer' role and was redesignated an attack submarine when the two roles were merged. The initial manning complement was 7 officers and 60 enlisted men. However before inactivation, the crew included 13 officers and over 100 enlisted men.