62 



K. J. Anderson, 



The breadths at the lower end (PL II. fig. 2) diminish as they 

 are traced upwards to the junction of the lower fourth with the second 

 fourth. A less distance than this in front and a greater distance 

 behind. The radial breadths at the angles of the anterior nine are 

 greatest. The ribs are rounded at the middle thirds and the posterior 

 surfaces turn out as they are traced downwards and increase in size 

 as before mentioned. 



Myogale Muscovitica Desm. The ribs like the last mentioned 

 are expanded at their sternal ends from the third to the 10*^. 



The outer surfaces are grooved in the lower thirds or are concave 

 from before back. 



The fifth rib measures 3 mm. at its sternal end 2 mm. at the 

 junction of its inferior with its middle third 1,5 mm. at the middle 

 and 1 mm. between the angle and the tubercle. The outer surface 

 looks backwards. 



The lower ends of the middle ribs in the mole are wide. 



The lower ends of the ribs of Myogale Pyrenaeaea also are expanded 

 and grooved. 



Pteropus (Flying fox). 





1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



A 



20 



35 



50 



60 



63 



63 



62 



50 



52 



80 



43 



30 



B 



10 



10 



10 



10 



11 



13 



20 



12 



— 



— 



— 



— 



C 



5 



2 



3 



3 



2,5 



2,5 



2 



2 



2 



I 



1 



1 



D 



— 



2,5 



2,5 



3 



3 



3 



2,5 



2 



1,5 



1 



1 



1 



E 



4 



2,5 



3 



3 



4 



3 



3 



2 



1 



1 



1 



1 



P 



20 



30 



40 



50 



51 



48 



47 



44 



— 



— 



— 



— 



G 



— 



2 



2 



2 



2 



2 



2 



1,5 



1 



1,5 



1,5 



1 



The breadths given opposite D are all tangential except the first 

 and second (PI. II. fig. 4). 



E = Breadths of the ribs near the angles. 



F = Distance of the widest parts from the lower end. 



G = The tangential breadths at the side. 



The ribs from the 3''^ to the 9*^^ are expanded behind and in front 

 and are narrow in the middle. After the sixth the wider inferior 

 portion is limited to the extremities, the 11*'' and twelfth, however, 

 taper off. 



