298 



SIE E. NEWTON AND DE. GADOW ON THE DODO 



C indicates the last true cervical vertebra. 

 7t „ a hooked spinous process. 

 r ,, a, short rib. 



St indicates a sternal rib. 



u „ an uncinate process (not mentioned 

 on the sternal ribs). 



Serial number of vertebrae 



Columba livia 



Phaps chalcoptera 



Didunculus sirigirostris 



Treron olax 



Garpophaga pacifica 



Ooura coronata 



Pezophaps solitaria, tj 



, ? 



Dichts ineptus, properly restored, Cam- 

 bridge and Mauritius Museums . . . . 



Didus, British Museum, figured by 

 Sir Eichard Owen, Trans. Zool. 

 Soc 



12 



13 



14 



15 



16 



17 



18 



19 



20 









s. 



J 



inter- 

 mediate. 



1st 

 pelvic. 



2nd 

 pelvic. 









Y 



anchylosed 



Ih 



7i, r 



r, u 



St 



St 



St 



St 



almost 

 sternal 



no rib 



C 



h,r 



h, r,u 



St 



St 



St 



si 





long rib 



c 



h, r 



h, r 



St 



St 



St 



St 





no rib 





C, 7i 



h, r 



r, u 



St 



St 



St 









C,h 



h,T 



r, u 



St 



St 



St 





no rib 





G,7i 



li, r 



r, u 



St 



St 



si 









G,h 



h, r, u 



r, u 



St 



St 



si 



St 



short 

 rib 





G,h 



h,T 



r, u 



St 



St 



si 



St 



33 





C,li 

 r 





r, u? 



St 



St 

 St 



si 



St 



St 



St 



no rib 



almost 



sternal 



c 



St 



si 



Didus agrees with Pezophaps in possessing 13 cervical vertebrae, 2 short ribs, 

 4 sternal ribs, the last being carried by the first pelvic vertebra. 



Treron, Carpophaga, and Goura agree with each other in having 13 true cervical 

 vertebrse, 2 short, 2 sternal, and 1 almost sternal pairs of ribs. They dififer from 

 Dichts and Pezophaps in the latter pair of ribs being withdrawn from the articulation 

 with the sternum. 



Cohtmha, Phaps, and Didunculus differ from the others in having only 12 true 

 cervical vertebrse, 2 short, 4 sternal, and 1 almost sternal pair of ribs, because their 

 15th or first anchylosed vertebra (instead of the 16th or 2nd anchylosed vertebra) 

 carries the first pair of sternal ribs. 



The restoration in the Trans. Zool. Soc. vi. pi. 15 contains one pair of sternal ribs 

 and one vertebra (the 15th in the figure) too many. 



In conclusion we wish to say that, beside the Birds' bones here described, the 

 explorations of Mr. Sauzier have produced very many bones of Reptiles, which will be 

 treated of by one of us in a subsequent paper*, together with a considerable number of 

 shells of Mollusks, portions of Crustacean integument, and a few pieces of Coral. 

 The presence of these marine forms in the soil of the Mare aux Songes may be, it is 

 believed, attributed to the action of Land-Crabs, for there is no reason to think that 



