These are the only three sharks of which the ancients have left us any discriminative account, though they doubtless were acquainted with many others frequenting southern seas. It must have been one of this gigantic race, and probably the white shark, to which Oppian refers in the latter part of the fifth _Halieatic_. “The gashed and gory carcase, stretched at full length, a ghastly spectacle! is even yet an object of recoil and superstitious dread. A vague fear of vengeance keeps awhile the most curious of the captors aloof; at length some venture to approach; one man looks into the gigantic jaws, and sees a triple tier of polished and pointed teeth; another wonders at the width of back; a third admires the herculean mould of the lately terrible tail; but a landsman, beholding the unsightly fish at a distance, exclaims—‘May the earth, which I now feel under me, and which has hitherto supplied my daily wants, receive when I yield it, my latest breath, from her bosom. Preserve me, oh Jupiter! from such perils as this, and be pleased to accept my offerings to thee from dry land. May no thin plank interpose an uncertain protection between me and the boisterous deep. Preserve me, oh Neptune! from the terrors of the rising storm, and may I not, as the surge dashes over the deck, be ever cast out amidst the unseen perils that people the abyss; ’t were punishment enough for a mortal to be tossed about unsepulchred on the waves, but to become the pasture of a fish, and to fill the foul maw of such a ravenous monster as I now behold, would add tenfold horror to such a lot!’”