Appendix to a “Note on a new and undescribed Wealden Vertebra,” read 9th February 1870, and published in the Quarterly Journal for August in the same year

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Abstract
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 peculiarities 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 a foot-note to my paper, I wrote “should their identity be hereafter established, there will still be the further question, What is this Streptospondylus ?” During the past summer my suspicion has been verified, and the question concerning this Streptospondylus is also solved. I find that my Eucamerotus , Ornithopsis , Seeley, probably Streptospondylus Cuvieri , and the huge Cetiosaurus , 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 probably one species) characterized by opisthocœ trunk-vertebræ, 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 neuraphophysis†. I have learned from Prof. Phillips that this Cetiosaurus furnished the moterials out of which Prof. Owen constructed his genus; it claims, therefore to be its type. Should this

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