Jaws

Oh the shark has pretty teeth dear,

And he shows them pearly white

During July 1941, [112 squadron, Royal Air Force] was one of the first in the world to become operational with the P-40 Tomahawk, which it used in both the fighter and ground attack role, with the Air Headquarters, Western Desert. Inspired by the unusually large air inlet on the P-40, the squadron began to emulate the "shark mouth" logo used on some German Messerschmitt Bf 110s of Zerstörer Geschwader 76 earlier in the war. This practice was later followed by P-40 units in other parts of the world (including the Flying Tigers, American volunteers serving with the Chinese Air Force). In December, the Tomahawks were replaced by the updated P-40 Kittyhawk, which the squadron used for the remainder of its time in North Africa, often as a fighter 

Wikipedia