Note 2293 — BOOK IX. THE NATURAL HISTORY OF FISHES.
John Bostock translation
Cuvier says that this is evidently a gross exaggeration on the part of some traveller; and Ajasson remarks, that the very largest turtle known does not exceed five feet in length, and four in breadth. In such a case, the superficies of the calapash or shell would be only from twenty to twenty-four feet, and this, be it remembered, in one of the very largest size.