On an Ornithosaurian ( Doratorhynchus validus ) from the Purbeck Limestone of Langton near Swanage

I n the Christmas of 1868, when staying at Swanage, I was so fortunate as to obtain from a quarryman a portion of a large lower jaw, in association with a long vertebra, which indicate an Ornithosaurian animal of unusual size. Neck and jaw are parts to be expected in close association; but I see no reason to believe, or doubt, that the bones pertained to the same individual, though in the absence of conflicting evidence I shall be justified in attributing both specimens to the same species. As with all my findings, these were deposited in the Woodwardian Museum of the University of Cambridge, and briefly noticed in 1869 in my ‘Index to the Aves, Ornithosauria, and Reptilia,’ pp. 89, 90, the species being named Pterodactylus macrurus . I now offer some further description of the remains, and propose to place them in a new genus. The jaw cannot be located in the genus Pterodactylus , because no evidence exists of the occurrence in England of that genus (which, so far as I can discover, has been found only in the Solenhofen slate, and is represented by animals of small size), and because no specimen of Pterodactylus has the compressed, elongated, many-toothed, spear-shaped jaw on which I found the genus Doratorhynchus . Pterodactylus had the teeth in the jaw directed upward, and it is distinguished by having also a tail as short as that of a rabbit or deer; while this specimen (if the vertebra is caudal, and if the tail may be