GROWTH AND AGE AT MATUBITY OF THE PACIFIC RAZOR CLAM 219 
Table 1. — Copalis: Adult razor clams, total length at time of formation of each ring, based on ring 
measurements 
Jjength, m centi- 
meters, mid-value of 
class 
Ring number 
, . 
Lengtiif in centi- 
meters, mid-value of 
class 
Ring number 
1 
2 
3 
4 
5 
6 
7 
8 
9 
1 
2 
3 
4 
5 
6 
7 
8 
9 
0 60 
18 
17 
11 
22 
31 
44 
53 
55 
58 
53 
33 
19 
16 
9 
13 
7 
5 
3 
8 00 
23 
28 
21 
31 
28 
32 
32 
33 
31 
37 
12 
7 
2 
0 80 
8.20 
1 00 
8 40 
1.20 
8.60 
1 40 
8 80 
1 60 
9 00 
1 80 
9 20 
1 
4 
8 
9 
22 
23 
49 
50 
53 
46 
45 
34 
34 
29 
10 
4 
2 
1 
2 00 
9 40 
2.20 
9.60 __ 
2 40 
9 80 
2 60 
10 00 
2 80 
10 20 
1 
1 
5 
3 
8 
10 
22 
52 
49 
63 
54 
45 
40 
21 
4 
3 
5 
2 
3.00 
J.. 
10.40 
3 20 
1 
10 60 
3 40 
10 80 
3 60 
11 00 
3.80 - _. 
11.20 
4 00 
11 40 
3 
2 
4 
22 
16 
37 
41 
74 
46 
30 
25 
14 
6 
7 
2 
1 
4 20 
11 60 
4 40 
1 
1 
11 
1 
4 
2 
6 
10 
8 
9 
11 
5 
10 
10 
11 
15 
22 
14 
11 80 
1 
4.60 - 
12.00 
4.80 - 
12.20 
2 
5 
6 
15 
34 
37 
48 
34 
31 
20 
4 
8 
4 
1 
S.OO - 
12.40 _ 
1 
2 
4 
1 
10 
20 
25 
32 
27 
19 
15 
9 
6 
1 
5.20 
12.60 
5.40 
12.80 
5.60 
13.00 
3 
1 
1 
3 
12 
15 
12 
12 
6 
7 
2 
1 
.... 
2 
1 
2 
3 
2 
1 
4 
2 
5.80 
13.20 
6.00 - 
13.40 
6.20 
13.60 
6.40 
13.80 
6.60 
14.00 _ 
6.80 _ 
14.20 
7.00 
14.40 
7.20 
14.60 
7.40 
14.80 
7.60 
15.00 
7.80 
16.20 
1 
