JURASSIC ANIMALS. 



443 



dactyl there is only one finger, which is enormously elongated and 

 strengthened, for the support of the web, and the others are free and 

 clawed. 



The Rhamphorhynchus differed from the Pterodactyl in having a 



long tail ; and in one species, R. phyll- 

 urus (Fig. 700) (leaf-tail), this was ver- 

 tically expanded at the tip so as to act 

 as a rudder in flying. In a specimen 

 from the celebrated Solenhofen lime- 

 stone of Bavaria, and now in possession 



Fig. 696.— Femur of Ceteosauras, 

 x Jq (after Phillips). 



Fig. 



-Compsognathus (restoration by Hux- 

 ley). 



of Prof. Marsh, even the membranes of the wings were perfectly pre- 

 served (Pig. 699). Fig. 700 is a restoration of this species in flight. 



Pterodactylus crassiiostris. 



