PALAEONTOLOGY 



by Dixon (as Pycnodiis) on the evidence of a specimen of the dentition 

 in the Brighton Museum from Cuckfield ; this specimen, we believe, 

 still remains unique. 



To a different group of ganoid fishes belongs Neorhombolepis valdensis, 

 a species typified by a fossil fish coiled up in a waterworn sandstone 

 boulder from the Wealden of Hastings now preserved in the British 

 Museum. The genus to which this unique specimen belongs is typified 

 by a species from the Kentish Chalk, and also includes a third repre- 

 sentative from the Chalk of Kent and Surrey. 



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