352 Mr. C. W. Andrews on Fossil Remains of 



the upper surface of the skull between the orbits — in Sarci- 

 diornis this region is very broad ; (3) the truncation of the 

 superior and posterior margins of the orbits by glandular 

 impressions. In all these points the fossil is identical with 

 the skull of the Egyptian Goose, and in fact differs from it 

 only in some minor points, such as the slightly greater promi- 

 nence of the basi-temporal platform. The anterior portion 

 of the skull is too broken for comparison. 



The sternum. — Of the sternum no complete specimen is 

 preserved, but several large portions show that in all impor- 

 tant respects it is like that of Clienalopex , though certain 

 small diiferences, such as the complete absence of a spina 

 externa and the greater distance between the tuberosities for 

 the attachment of the coraco-scapular ligament, occur. The 

 first of these points seems, however, to be of little moment, 

 since in one of two specimens of the sterimm of Sarcidiornis 

 the spina externa is large, in the other absent. 



The coracoid is unlike that of Chenalopex cegyptiacus in 

 several points. Thus the shaft immediately below the pre- 

 coracoid process is narrower, and the acrocoracoid process is, 

 in some cases at least, less massive, so that the whole bone 

 has a more slender appearance than in the recent bird. The 

 peculiar flattening of the anterior face of the bone seen in 

 Sarcidiornis is here wanting. In one specimen there is a 

 distinct supracoracoid foramen closed by a very delicate strip 

 of bone. 



The scapula a.nd furcula present no important peculiarities. 

 In the latter, however, the ventral border at the symphysis 

 is produced into a slight angular projection instead of being 

 evenly rounded as in C. cegyptiacus ; this may, however, be 

 merely an individual peculiarity. 



The average length of the greater number of coracoids 

 measured is about Q7 mm., but a few occur which are 7 or 

 8 mm. longer. A specimen of the coracoid of Chenalopex 

 (Egyj)tiacus (sex unknown) measured Q7 mm. 



The humerus is very similar to that of Chenalopex. The 

 tricipital fossa beneath the head is, however, much deeper 

 than in C. agyptiacus^ in this respect approaching C. pugil. 



