CHAEACTEES OE THE OEDEE PTEEOSAUEIA. 
169 
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A rib of Pterodactylus BucMandi, from Stonesfield Oolite. 
Front view of a lumbar vertebra, Pterodactylus SedgwicJcii. 
Front view of first sacral vertebra, Pterodactylus SedgwicJcii. 
Under view of first and second sacral vertebra, Pterodactylus SedgwicJcii. 
Front and under view of centrums of first three sacral vertebrae of a smaller, 
probably younger, Pterodactyle. 
Front atlas and axis vertebrae, Pterodactylus SedgwicJcii. 
Vertical longitudinal section of atlas and axis, Pterodactylus SedgwicJcii. 
Front view of axis vertebra, Pterodactylus SedgwicJcii. 
Side view t 
B ack view it 
Under viewJ 
Under view"!^^ 
of atlas and axis vertebrae, Pterodactylus Fittoni. 
Front view / 
an anterior caudal vertebra, Pterodactylus SedgwicJcii. 
Upper viewl of a ceiwical vertebra, Pterodactylus BucJclandi, from Stonesfield 
Under view / Oolite. 
2 A 
MDCCCLIX. 
