298 



SIE B. NEWTON AND DE. GADOW ON THE DODO 



C indicates the last true cervical vertebra. 

 ^ „ a hooked spinous process, 

 r ,, a short rib. 



St indicates a sternal rib. 



M „ an uncinate process (not mentioned 

 on the sternal ribs). 



Serial number of vertebrae 



Columha livia 



Pimps chalcoptera 



Dklunculus strigiroslris 



Treron olaoo 



Oarpophaga padfica 



Ooura eoronata 



Pezophaps solitaria, (J 



, 2 



Didus ineptus, properly restored, Cam- 

 bridge and Mauritius Museums . . . . 



Didus, British Museum, figured bv 

 Sir Richard Owen, Trans. Zooj. 

 Soc 



12 



C 

 C 



13 



h, r 



h, r 

 h,r 

 C,h 

 C,h 

 C,h 



C, h 



C,h 



14 



15 



16 



17 



V 



anchylosed 



St 

 St 



St 

 St 

 St 



St 



St 



18 

 inter- 

 mediate. 



19 



1st 

 pelvic. 



St 

 St 



St 

 St 



almost 

 sternal 



St 

 St 



St 



20 



2nd 



pelvic. 



no rib 



long rib 

 no rib 



no rib 



short 

 rib 



no rib 



almost 

 sternal 



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 

 vertebrae, 2 short, 2 sternal, and 1 almost sternal paiis of ribs. They differ from 

 Didus and Pezophaps in the latter pair of ribs being withdrawn from the articulation 

 with the sternum. 



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

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

 loth 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 



