430 'miss DOROTHEA BATE ON FOSSIL VERTEBRATES. 



I have examined, appears to be a stouter-limbed bird than 

 G. olor. 



Himierus (text-fig. 2 a). — The proximal portion of a left 

 humerus believed to belong to the same species as the above 

 metacarpus shows a similar characteristic stoutness of build, and 

 is unlike any specimen with which it has been compared. It is 

 actually very much smaller, but in comparative proportions agrees 

 fairly closely witli the corresponding portion of the humerus of 

 C. viusicus, except that the general outline is squarer and the 

 liead and trochanter are stouter, while the subtrochanteric fossa 

 is more definitely defined and much deeper, and the groove 

 separating the head and the trochanter is more deeply excavated. 



Coracoid (text- fig. 2 b). — A right coracoid is also believed to 

 be that of C. equitum, being of corresponding size and showing 

 the same general characteristics as the two bones described above. 

 This specimen is in a good state of preservation, only wanting 

 the outer portion of its sternal border and the point of the sub- 

 clavicular process. In comparative proportions it is not unlike 

 the corresponding bone of C. musicus, although its ventral aspect 

 is rather diflferent owing to the wider base from which the sub- 

 clavicular process springs and the greater thickness of the ridge 

 between the head and the main body of the bone. The surfaces 

 of contact with the sternum are wide and shallow. 



Ulna.-— The collection includes the proximal portions of a 

 right and left ulna, which I have been unable to identify with 

 any recent specimens to which I have had access. They appear 

 to agree in size and robustness with the limb-bones described 

 above and are provisionally ascribed to the same species. Their 

 dorsal aspects show no roughened surfaces for the attachment of 

 the flight-feathers. 



Madius. — The distal portion of a radius with about two-thirds 

 of the shaft is more doubtfully assigned to this species, as it is 

 perhaps compai'atively rather larger than the two ulnse. 



Two species of Bustards are represented in the collection by a 

 few fragmentary remains. Both these species occasionally occur 

 as stragglers to the island at the present day, but neither has 

 been previously recorded in a, fossil state. 



The distal portion of a right tibio-tarsus and the proximal 

 portion of a left scapula are I'eferred to Tetrax campestris., while 

 the distal extremities of two tarso- metatarsi are ascribed to 

 Otis tarda, one being that of a male and the other that of a 

 female bird. 



