114 
ACKNOWLEDGEMENTS. The type of Rhomaleosaurus thorntoni was 
cleaned at the Natural History Museum, London, under the direction of Dr 
Angela Milner, at the request of Dr Michael Taylor. Iam grateful to Dr Milner 
for the loan of this specimen, and for access to the mounted cast of the type 
of R. cramptoni (BMNH R34) in the Natural History Museum, and to Dr 
Taylor for discussion and access to his collection of reference slides. Mr John 
Martin, Keeper of Earth Sciences, and the Director of the Leicestershire 
Museums Service provided facilities for the work to be undertaken. The 
assistance of Mrs Anne Montgomery of the Geology Department, University 
of Leicester is gratefully acknowledged. Mr Nigel Monaghan (NMING) 
cheerfully supplied photographs of the type of R. cramptoni. John Martin, 
David Brown, Angela Milner and Michael Taylor read drafts of the manu- 
script, to its great improvement. The work was done during the tenure of a 
Leverhulme Fellowship awarded to Dr M A Taylor. 
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