MR. W. K. PARKER OK THE SKULL IK THE BATRACHIA. 
PLATE 1. 
Figures. 
Humber of 
times 
magnified. 
1 (p. (19) 
Youngest Tadpole of Pseudis paradoxa (A).—First larva; 
length, 10 g’ inches; head and body, 3^- inches; tail, 
7 inches; greatest width of ditto, 4 inches; depth of 
* 
body, 2f inches; hind legs, inch. South America . 
Nat. size. 
2 
Mouth of same.. 
2 
3 (p. 22) 
Panel pipiens (A).—Youngest larva; length, 5 inches; 
tail, 3 inches; hind legs, ^ inch. North America. 
(Undissected palate) .. 
Q3. 
d 4, 
4 
The same. Floor of mouth undissected ...... 
6 4> 
5 
The same. Section of head ( vertical) with brain removed 
Q3 
6 4> 
