bonnet head

n.1.(Zool.) small harmless hammerhead shark (Sphyrna tiburio) of the southern United States and West Indies, having a spade-shaped head; abundant in bays and estuaries.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
And over the shallow turtlegrass flats along the oceanside of South Bay large bonefish, permits, yellow jacks, lemon, blacktip and bonnet head sharks and barracudas are available.
in front of their heads (three times the overlap in the pointy nosed species) while the bonnet head had a respectable 13 deg.