XI. 



RHAMPHORHYNGHUS BUGKLANDI. 



221 



After frequently examining the numerous bones in the Oxford 

 Museum, and considering the restorations of Goldfuss, Buckland, 

 and Owen which represent allied genera, the idea which rises to 



Diagram LXX. Rhamphorhynchus Bucklandi. 



my mind of the external aspect of Rhamphorhynchus Bucklandi 

 is presented above. It is much more like a bird than are any of 

 the drawings referred to, which, as already observed, are restora- 

 tions of other and less decidedly flying animals. 



The mandible, of which four examples are known, is represented 

 in Diagram LXXI. 



Diagram LXXI. Khamphorhynchus Bucklandi. Scale one-fifth of nature. 



i. Mandible, seen from above. 2. The same, seen sideways. 

 3. One tooth of natural size. 



In a general view, it has a certain resemblance to the lower jaw 

 of plesiosaurus ; a short symphysis uniting slender rami, and 

 bearing anteriorly a few sockets for prominent acute, nearly straight 

 conical teeth. The extremity runs out into a kind of beak (fig. i), 

 with a certain space on each side of it without traces of teeth. 

 Sockets for teeth, apparently of similar size, are observed along 

 the rami for above two-thirds of the whole length, after which 

 the jaw is edentulous (figs, i and 2). 



