58 



E, J. Anderson, 



The Fox. 



The first rib is rounded and enlarged at the lower extremity. 

 The second has a large tangential diameter below. The outer surface 

 becomes the anterior above and gets narrower. The flattening of the 

 third reaches half the length of the rib so that the tangential diameter 

 is large in the lower half. 



The tangential breadth of the fourth is less than that of the 

 preceding. 



The anterior and posterior borders of the 2"»^, S'''^, A^^ and fifth 

 ribs are very sharp below. 



The posterior ribs are rounded and rod like. 



Where two measurements are given in the following table, the 

 radial comes first. 





1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



A 



30 



50 



65 



85 



100 



105 



110 



110 



110 



105 



95 



80 



75 



B 



15 



20 



25 



30 



35 



40 



45 



50 



— 



— 



— 



— 



— 



C 



8 



6 



4 



4 



4 



3 



3 



4 



3,5 



3 



3 



?,5 



3 



D 



8 



8 



9 



5 



5 



4 



3 



4 



3 



3,5 



4 



3 



3 



E 



3 



4 



5x2 



4x3 



4x3 



4x2,5 



3x3 



3 



3 



3x3 



3x3 



3x3 



3 



P 



30 



10 



17 



'20 



23 



30 



— 



— 



- 



— 



40 



30 



— 



A and D are tangential. C near lower end. D widest. E at angles radial and 

 tangential. 



For general see Giebel in Bronn. 



Felis Leo. 



In the Lion the breadths of the first four ribs diminish gradually 

 as they are traced up from the lower ends. The remaining ribs have 

 tangential breadths at the lower ends greatly in excess of the radial but 

 they breadths diminish immediately as the ribs are traced up. The 

 following are the breadths in the specimen examined 1^* 20 mm., 

 2"d 19^ 3rd 15^ 4th 17^ 5th 18, &'' 16, 7*1^ 15, 8*»^ 18, 9»'' 17, lO^i» 14, 

 11th 16^ 12th 17^ 13th 10. 



In the Hyaena the S""*, 4*'^, 5* and ß*'^ ribs are broad tangentially. 

 Narrow at the extreme end, then wider higher up. 



