LUCAS: GALLINULOIDES WYOMINGENSIS EASTMAN. 



81 



as in Pediocetes. The coracoid resembles that of the Old World pheas- 

 ants, and especially that of Phasianus colchius, more than it does the 

 corresponding bone in any of the curassows. The epicoracoid is a little 

 more angular than is customary among Galliformes, but the epicoracoid 

 of Pediocetes is of much the same pattern, and in this small point the 

 Green River bird makes its nearest approach to some of the American 

 grouse. The precoracoid process appears to be absent, as it is in most 

 Galliformes, although there is a suggestion of this process in Arboriphila. 

 The scapular process is small. The distal end of the coracoid makes a 

 more obtuse angle with the shaft than is usual even in galline birds, 

 but in this respect it is very similar to Phasianns colchius. 



Scapula, coracoid, and furcula, natural size. 



The furcula is unusually short and stout for a gallinaceous bird, ex- 

 ceeding in this respect any species with which it has been compared ; it 

 is U-shaped rather than V-shaped, most nearly resembling Numida in 

 this particular. There is a distinct though slight acrocoracoid process, 

 so that the furcula did not merely rest against the inner side of the 

 coracoid, but articulated with it, thus differing from all existing Galli- 

 formes. The scapular ends of the furcula are hidden so that it cannot be 

 positively stated whether or not they reached the scapula. The hypo- 

 cleidium is large and triangular, contrasting with Crax, which has a 

 spinous hypocleidiura, and exceeding Ortalis, in which this process is 

 subtriangular and of moderate size. 



The sternum has a manubrium of moderate size, but from the disposi- 

 tion of the bones it is impossible to ascertain whether it is perforate or 

 imperforate. Both the external clefts are quite deep, and the external 

 as well as internal xiphoid process is directed well backward ; both 



