Yol. 6$.~] CERVICAL VERTEBRA OF A ZEUGLODON. 127 



shallow-water fauna in Hampshire may perhaps, as Dr. Stromer l 

 has pointed out, indicate that there was a shore-line in the neigh- 

 bourhood and that the land-connexion between the Old- World 

 continents and America was to the north. At the same time, 

 although the Zeuglodonts alone may not supply such evidence 

 as the present writer has suggested, 2 there are many reasons for 

 believing that there was also a southern land-connexion between 

 Africa and South America. 



Discussion. 



Prof. Seeley said that the discovery of the neck-vertebra was most 

 interesting; he was unable to add anything to the account of the 

 skull originally laid before the Society. But, as no figure was given 

 of his drawing of the parieto-frontal region in Zeuglodon Wanklyni, 

 he drew attention to the circumstance that it was much broader 

 and more convex on the upper aspect than in any Zeuglodonts 

 subsequently made known from newer beds, and might possibly be 

 referable to a distinct genus on this evidence. The caudal vertebra 

 which he had described as Balcenojptera Juddi he had long since 

 chronicled as the caudal vertebra of a Zeuglodon, possibly identical 

 with the Barton species. He referred also to the fact that, in the 

 Sedgwick Museum, are similar caudal vertebrae of a Zeuglodont, 

 which he believed were obtained by Mr. Henry Keeping from an 

 excavation at Brockenhurst in the Brockenhurst Beds. 



Mr. Clement Heid asked whether other bones of Zeuglodon were 

 found at the same time, and also whether the exact horizon in the 

 Barton Clay could be ascertained, for this clay contained several 

 palaeontological zones. The discovery was of importance, for free- 

 swimming marine animals, especially the higher vertebrates, were 

 the only fossils that could be used in the correlation of far- 

 distant deposits, such as the Tertiary strata of Europe and 

 America. 



Dr. Smith Woodward said that he understood from Mr. Eliot- 

 Walton, who brought the Zeuglodont- vertebra to the British Museum, 

 that he obtained the specimen from a local collector, who had 

 already sold some associated vertebrae to casual visitors to Barton. 

 He hoped that the publication of the paper would lead to the recovery 

 of these specimens for scientific examination. 



1 ' Ueber die Bedeutung der fossilen Wirbelthiere Afrikas fur die Thier- 

 geographie ' Yerhandl. d. Deutsch Zool. Gresellsch. 1906 (Marburg meeting) 

 p. 208. 



2 ' Tertiary Yertebrata of the Fayum ' Brit. Mus. Catal. (1906) Introd. 

 p. xxvii. 



