Range of the Arthropoda, showing the relative persistence in Time of each Group. 
394 
popular science review. 
Eugereon, 
1 sp. 
1 
Coleoptera, 
3 sp. 
Orthoptera, 
13 sp. 
Neuroptera, 
14 sp. 
1 
Neuroptera, 
&c., 7 sp. 
§ 
<1 
« 
o 
^ | 
.2 ^ 
I 
1 .*§.& 
M “H* 
•4 
a 
§ 
tn 
P. .. £ ro 
^ 2 ft o a ,§ 
o' ^ ^ ^ rj 
0 
1 
ffrlfl 
w 
o 
ih 
§ 
o 
1 
o 
H 
O 
H 
p 
g, 
<J 
1 
1 
PH 
m 
e 8 
3 3 
.2 n 
> P 
1 
Pterygotus 
Stylonurus 
1 3 
nulus Pterygotus 
| Slimonia 
ispis Euryptcrus 
s 
I 
Pi 
m 3 
FM ffl 
? 8 
8 <U 
6 W 
Phyllopoda 
and 
p 
8 
loiift paqxrasan 
ffl 
H 
o 
vTrrmr^mrj7TO™!____ 
1 
1 
\u 
I 
°-rt i 
1 
1 
1 1 
(YiiaOTIHl) 
1 1 o 1 
s 1 
l 
c 
5 
) 1 
c3 
‘I 
1 
3 
_g 
O 
> 
1 I 
03 
?M 
as g“ 
-g.3 
cS 
l 
p 
c 
0 
0 
1 
5 
> 
3 
a 
„ 8 < w 
i. 
bD P 
1 1 
^ I 
° .2 
p3 
2.53 
8 a 
(Z( 
§ 
ce 
a 
o 
H 
m 
m 
Pygo- 
ceph 
Decapoda 
r < 
Oh 
P 
tf 
a 
o 
a 
« 
Brachyura Mac 
i 
1 
£ 
'c3 
PM 
a 
2 
4 
Recent 
and 
Tertiary 
Cretaceous 
o 
£5 
Triassic 
fc 
<5 
P 
PM 
Carboni- 
ferous 
1 
Devonian 
y A 
< 
a 
p 
S 
Cambrian 
