I. Description of Portions of Jaws of a large extinct Fish (Sterodus Melitenis, Ow.), probably a ‘Cycloid’ with ‘Sauroid Dentition,’ form the ‘Middle Beds of the Maltese Miocene,’ With a Woodcut

Extract

Specimens indicative of large ‘cycloid’ Fishes, with teeth of ‘sauroid’ character, have been obtained from the ‘Upper Chalk’ of England. To a species of this kind, with large circular scales covered with minute asperities visible by the aid of a pocket-lens, Agassiz assigned the generic name Pachyrhizodus, in reference to the thickness of the base of the anchylosed teeth.