350 Mr. C. W. Audrews on Fossil Remains of 



A specimen of the first phalangeal of the second digit, 

 measuring 46 mm. in length, probably belonged to this bird. 



It will be seen from the foregoing description that in 

 Centro7'nis majori we have a Goose in many respects similar 

 to Sarcidiornis and Chenalopex, but differing from them in 

 its large size and in the great length of its legs. Indeed, 

 judging from the slenderness of the metatarsus and femur 

 and the slight degree to which the lower end of the long 

 tibia is inflected, it seems probable that this bird was not 

 a good swimmer, but was rather adapted for wading. The 

 wings were long and powerful, and, being armed with a long 

 spur, were no doubt formidable weapons. 



The genus Chenalopex is represented by two species : 

 C. (Bgyptiacus, inhabiting Africa and Palestine, and C.juhatus, 

 found in South America. It is noteworthy that these birds 

 are represented in the Pleistocene deposits of their respective 

 areas by very large extinct forms, the former by Ceatrornis 

 majori, the latter by the so-called Clienalopex pugil*. These, 

 though differing one from another in the form of their legs, 

 seem to have been almost identical in the structure of their 

 wings, the similarity between their metacarpi being a 

 remarkable instance of parallel modification. 



By far the greater number (at least three-fourths) of the 

 bird-bones in the collection belong to another Anserine bird 

 considerably smaller than that just described. Of this form 

 all the important parts of the skeleton, including the skull, 

 sternum, pelvis, and the bones of the fore and hind limbs, 

 are preserved, and in one or two cases a number of bones 

 are known to have belonged to a single individual. The 

 largest of these associated sets includes the skull, two or three 

 vertebrae, humerus, radius, ulna, scapula, and coracoid. The 

 metatarsus is unfortunately wanting in this instance, but 

 since several specimens occur associated with bones identical 

 in form with those represented, it is possible to refer them 



* I am of opiniou that it would be not only justifiable but desirable to 

 make this species the type of a new genus, since, though in very many 

 respects similar to Chenalopex jubatus, it presents important differences 

 both in size and structure. 



