36 PEOCEEDINGS OF TflE GEOLOGICAL SOCIETY. [NoV. 22, 



4. Appendix to a " Note on a neiv and undescribed Wealden Yek- 

 TEBRA," read 9t7i February 1870, and published in the Quarterly 

 Journal for August in the same year^ . By J. "W. Hflke, Esq., 

 F.E.S., F.G.S. 



On the 9th of February, 1870, I brought under the Society's notice 

 the neural arch of a huge Wealden vertebra which in the preceding 

 summer I had obtained at Brooke, on the south coast of the Isle of 

 "Wight. As it was quite unlike any known form, I referred it to a 

 provisional genus Eucamerotus. From certain pecxiliarities of its 

 internal structure I strongly suspected that when evidence of the 

 form of its missing centrum should be obtained, it would be found' 

 to resemble a Mantellian Streptospondylian centrum in the British 

 Museum, labelled " No. 28632. Wealden, S. E. England." And in 

 afoot-note to my paper, I wrote " should their identity be hereafter 

 established, there will still be the further question. What is this 

 Strejytospondylus ? " 



During the past summer my suspicion has been verified, and the 

 question concerning this Streijtospondylus is also solved. I find that 

 my Eucamerotus, Ornithopsis, Seeley, probably Streptospondylus Cu~ 

 vieri, Owen, and the huge Getiosaurus, Owen, whose recently restored 

 remains strike the visitor to the Oxford Geological Museum with 

 amazement, are all members of one genus (the first two are pro- 

 bably one species) characterized by opisthocoelian trunk-vertebrjB, 

 having an unusually complex and very highly developed neural arch, 

 but more particularly marked by a large and deep excavation in the 

 side of the centrum beneath the root of the neurapophysisf. I have 

 learned from Prof. Phillips that this Cetiosaut^us furnished the mo- 

 terials out of which Prof. Owen constructed his genus ; it claims, 

 therefore to be its type. Should this be accepted as the type of the 

 genus, then C. brevis, Owen, a S. E. England and Wealden form, 

 must, I suppose, find another place, since the trunk-vertebrae as- 

 signed to it in the " Report on British Fossil Reptiles " are described 

 as having both articular surfacs concave. 



Discussion. 



Mr. Boyd Daweins, who had recently visited Oxford, stated that 

 he had there examined the remains referred to. There was, how- 

 ever, no tooth found with them sufficiently perfect to show the 

 nature of the food on which the animal subsisted. But one of his 

 students had lately found, in the same pit that had aff'orded the re- 

 mains, a tooth corresponding with a stump of a Cetiosaurian tooth 

 in the Oxford Museum ; and the perfect crown agreed in its prin- 

 cipal characters "with that of Iguanodon, with which, therefore, the 

 Getiosaurus seemed to be allied. It was probably a vegetable feeder. 

 Mr. J. Parker had lately procured from the Oxford Clay a number 

 of saurian remains ; and among them were some vertebrae of Megalo- 



* Vol. xxvi. p. 318. 



t This at once separates them from the vertebra of Streptosioondylus major, 

 Owen, another Wealden form. 



