TBOM THE OXFORD Cf.AY OF HUNTINGDONSHIRE. 431 



also as showing the natural contour of the bones, which aregcnerally 

 more or less flattened in the specimens from the Lithogtaphic Lime- 

 stone. They do not afford characters l)y which the species to whicli 

 they belong can be dehnitely distinguished from lihauiphorJn/mhKs 

 Gennnlnf/i ; but since they come from a lower horizon than the Litter. 

 I venture to regard them as the type of a proviisional species, tor 

 which I have proposed the name li. Jcssoni. The genus lihamphor- 

 hi/)ic7ius^ as now restricted, has been liitlierlo known only trum tlie 

 Lower-Kimeiidgian Lithographic Limestone, 



