r 2, ¢ y 
MR. VW. K. PARKER ON THR SKULN IN. a AM v1 ay 
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PLATE 20. 
Figures, 
ee J a ee Se a ee eet 
1 Erinweus europeus (ath stage, continued); skull; lower 
VIEW sits ae bees 3 ah Seles 2 eee oe oe Se 
The same; upper view . ie Wnt ees 
The same; side view . . . . 2 Si = hoes 
Lirine ceus europeus (6th sta ae)s 3 young, g grown ; section 
of s eau 4? oe ; : 
| The sime (part) ; with septa: remo: al 
Evinaceus europeus (8th stage); sa arbult ; phere 
sphonoid; upper view . . . . ; 
| The seme; end view, behind. . 
The seme; inferior (maxillary) tarbine!s ; fants view . 
| 
t 
The s.me; lower view. . . . . ee ar 
The sume; internal View . . . ... . on es 
