MR. W. K. PARKER ON THE SKULL IN THE MAMMALIA. 
PLATE 28. 
Figures. 
Number of 
times 
magnified. 
oo 
Talpa europea ; first of a series of stages of the visceral 
arches, the main figures all drawn from the inside (3rd 
stage of the whole series) ; embryo mole, 3 inch long . 
The same (2nd special, 4th general stage) ; embryo, $ inch 
long i, “Soar ee re a ae 
The same (3rd special, 5th general stage); embryo mole, 
1 inch long a oe a a 
The same (4th special, th erica stage); embryo mole, 
14 inch long : ee 
The same (5th special, 7th general stage); embryo mole, 
13 inch long é a ee 
The same (6th special, 9th general stage) ; suckling mole, 
2 or 3 days old. ae frag 
The same (7th special, 10th general stage); young mole, 
3 inches long 
The same (8th special, Lith general stage); young mole, 
9 
3 grown ; hyoid arch; upper view 
The same; malleus ; inner view. 
la al 
The same ; malleus; outer view . 
The same species (9th special, 12th neue stage) ; stapes 
in situ 
10 
10 
10 
10 
LO 
10 
10 
10 
10 
10 
10 
