THOMPSON: METAMORPHOSES OF HERMIT CRAB. 
189 
The distribution of the variations .— The crabs that showed the 
variations, the variants , were distributed among the different con- 
% 
ditions as follows : — 
1 . 
Normal 
107 
crabs 
21 v 
ariants 
19.6 percent. 
Indifferent 
62 
<< 
10 
u 
16.0 
u . 
Sinistral 
103 
u 
23 
u 
22.2 
u 
Naked 
221 
u 
105 
a 
47.0 
a 
The percentages of the actual combinations under each environ¬ 
ment to the whole number of variations recorded for all environ¬ 
ments were: — 
9 
— • 
Normal 28 percent of all the combinations. 
Indifferent 
26 
u 
u a u 
u 
Sinistral 
36 
a 
u u u 
u 
Naked 
221 
u 
u u u 
a 
f 
The actual combinations of each kind presented, as compared with 
all the recorded combinations for each class of variations were: — 
3. 
A 
B 
C 
Normal 
24% 
33% 
30% 
Indifferent 
32 “ 
33 “ 
— 
Sinistral 
36 “ 
33 u 
50 “ 
Naked 
94 “ 
— 
25 “ 
The distribution of the variant crabs anions; the classes of varia- 
O 
tions was as follows : — 
4. 
A 
B 
C 
Normal 
21 variants 
GO 
4.7% 
14.0% 
Indifferent 
10 “ 
80 “ 
4.7 “ 
— 
Sinistral 
23 “ 
74 “ 
4.7 “ 
17.0 “ 
Naked 
105 “ 
96 “ 
_ 
3.8 “ 
