320 
MR. W. BATESON ON SOME VARIATIONS OF CARDIUM EDULE 
Table 11. — Shumisli Kul. 
The First [Highest) Terrace. 
Measurements of shells in millimetres. 
' Average breadth of shells having the same length. 
1 
Length. 
Breadth. 
Length. 
1 
Average 
breadth. 
Number of 
shells. 
Ratio of length to 
breadth. 
21 
17, 16 
1 
* 21 
16-5 
o 
1:0-77 
20-5 
160 
20-5 
16 
2 
-78 
20 
16(-5), 15-5, 150 
20 
15-6 
8 
-78 
19 
15-50, 150 
19 
15-1 
6 
-79 
18-5 
15-.5, 15, 14-5, 14 
18-5 
14-7 
4 
-79 
18 
150, 14-50, 140 
18 
14 5 
7 
-80 : 
17-5 
14-5, 14 
17-5 
14-2 
O 
-81 
17 
140, 13-5, 13 
17 
18*7 
7 
-81 
16'5 
14 
16-5 
14 
1 
-84 
16 
13 
16 
13 
1 
•81 
Avei'ago ratio of leiigtii to breadth iii 30 shells varying in length between 21 nini. and 16 niin. 
is I : 0’799. 
The Second Teoxice. 
(rt.) Shells Vavying in Length between 21 nnn. and 16 inm. 
jVtea.suremcnts of shells in millimeu-e.s. 
Average breadtl 
of shells having 
the same length. 
Ratio of length to 
breadth. 
Length. 
Breadth. 
Length. 
Average 
breadth. 
Number of 
shells. 
21 
170, 160 
21 
16-5 
4 
1:0-78 I 
20-5 
16 
20-5 
16 
1 
-78 ' 
20 
16(i), 15-5, 15(-0 
20 
15-4 
6 
*77 ' 
19-5 
16, 15-5, 15 
1 19-5 
15-5 
3 
-79 : 
19 
16, 15-5(-"), 15, 14 
' 19 
15-2 
(i 
-80 j 
18-5 
14 
18-5 
14 
1 
-76 
18 
15(2), i.i 
18 
14-4 
6 
-80 ' 
17-5 
14 
17-5 
14 
1 
-80 ■ 
17 
14 
17 
14 
1 
-82 
IL 
13 
1 
-81 
1 
AA'ei’age latio of length to breadth in 30 shells varying in length between 21 inm. and 16 nun. 
is 1 : 0-7S2. 
