OF THE SKULL IN THE UKODELOUS AMPHIBIA. 
597 
Number of 
Plate. 
Fig. 
Stage. 
diameters 
magnified. 
27 
2 
9th 
The same skull. Upper view 
55 
3 
„ 
Part of lower view of same 
7 
55 
4 
55 
Section of suspensorium of same 
7 
55 
5 
55 
Median part of visceral arches of same. Upper view 
H 
55 
6 
10th 
Skull of Ambly stoma ojgacum. Upper view . . . 
5 
55 
7 
55 
The same. Side view 
5 
28 
1 
Adult 
Skull of Proteus anguinus. Side view .... 
5i 
55 
2 
55 
The same. Upper view 
4 
55 
3 
55 
The same. Lower view 
4 
„ ! 
The same, with investing bones removed. Upper 
} 6i 
55 
” 1 
view 
55 
5 
55 
The same. Side view* 
8 
55 
6 
55 
Lower jaw of same. Inner view 
„ 
7 
55 
Part of skull showing union of pedicle with trabecula 
12 
55 
8 
55 
Section through the same skull. Orbital region . 
51 
29 
1 
1st | 
Skull of larval Seironota perspicillata , \ inch long. 
| 24 
Upper view 
55 
2 
55 
The same. Lower view 
24 
55 
3 
Visceral arches of same. Upper view .... 
24 
4 
Adultj 
Skull of adult of same species, 2 inches long. 
1 12 
5 5 
Upper view 
1 
55 
5 
55 
The same. Lower view 
12 
55 
6 
55 
The same. Side view 
12 
55 
7 
55 
Lower jaw of same. Inner view 
12 
55 
8 
” 
Visceral arches of same. Upper view .... 
12 
* In the Plate this is lettered “ X 11,” by mistake. 
4 p 
MDCCCLXXVII. 
