Note 2735 — BOOK IX. THE NATURAL HISTORY OF FISHES. (continued 2)

“Ora ei in radice.” Aristotle, however, says, Hist. Anim. B. iv. c. 5, and B. viii. c. 3, that the sea-nettle has the mouth situate ἐν μέσῳ, “in the middle of the body.” Hardouin attempts to explain the passage on the ground that Pliny has made a mistake, in an endeavour to suit his similitude of a tree to the language of Aristotle. Cuvier says, that there exists one genus or species of the medusæ, which appears to feed itself by the aid of an apparatus of branches, and is divided into such a multitude of filaments, almost innumerable, that it bears a strong resemblance to the roots of a tree or vegetable. It is this kind, he says, that he has called by the name of “Rhizostomos.”