MR. W. K. PARKER ON THE SKULL IN THE MAMMALIA. 
PLATE 31. 
Number of 
Figures. times 
magnified. 
1 | Sorex vulgaris (4th stage) ; skull of adult ; upper view 5 
2 The same; lower view D 
3 The same; side view ee Bs) 
3A The same ; end view of lower jaw 5 
4 The same ; petromastoid bone ; inner view 12 
5 The same ; outer view oe See 1192 
6 The same; malleus, incus, and tympanic ; outer view . 18 
7 The same ; inner view 18 
8 The same; stapes; side view ae 18 
9 Sorex vulgaris (4th stage) ; adult ; ite ral inner view 7 
10 The same (8rd stage) ; skull; side view fe 
il The same; section; side view 7 
12 The same ; hyoid arch 12 
