640 
BULLETIN OP THE BUREAU OP FISHERIES 
Table 3. — Average length of cockles 
[N=number of individuals; Mi=median length in centimeters; P. E.=probable error of median] 
Ring No. 
N 
Mi 
P. E. 
TILLAMOOK 
i 
23 
2. 02 
0. 031 
2 
17 
4. 65 
. 112 
3 
11 
6. 06 
.281 
4 
10 
7. 13 
0. 264 
5 
4 
7. 25 

6 
2 
8.26 
7 
1 
8. 10 
COrALIS 
1 
47 
1. 14 
.077 
2 
50 
4.40 
.040 
3 
22 
5. 52 
.213 
4 
15 
0. 36 
. 104 
5 
7 
6. 97 
.089 
6 
3 
7. 25 
.058 
7 
3 
7. 85 
.058 
KAKE 
1 __ 
4 
.73 
2 
4 
2. 78 
3 
4 
4. 35 
4 
4 
5. 52 
5 
4 
6. 37 
6 
3 
7. 32 
7 
3 
7. 81 
8 
3 
8. 15 
9 
2 
7.37 
10 
1 
8.15 
CORDOVA 
1 
16 
.26 
.017 
2 
32 
1.80 
. 191 
3 
30 
3. 73 
.082 
4 
30 
5. 83 
.053 
5 
27 
6. 68 
.140 
6 
23 
7.43 
. 102 
7 
8 
7. 59 
.237 
Ring No. 
N 
Mi 
P. E. 
CORDOVA— con. 
8 ... 
7 
8. 11 
0. 147 
9 
7 
8. 42 
.147 
10 
6 
8.89 
11 
4 
9. 21 
12 
3 
9. 42 
13 
2 
9. 82 
14 
1 
9. 70 
15 
1 
9. 81 
16 
1 
9. 97 
17 
1 
10. 03 
CONSTANTINE 
HARBOR 
1 
34 
.50 
.039 
2 
107 
1. 80 
.099 
3 
105 
3. 38 
.036 
4 
81 
4. 59 
.043 
5 
65 
5. 41 
.055 
6— 
44 
5.89 
.020 
7 
36 
6. 28 
.051 
8 
22 
6.60 
.082 
9 
14 
6. 84 
. 126 
10 
11 
6. 93 
. 112 
11 
6 
7. 27 
12 
5 
7.44 
13 
1 
7. 20 
SNUG HARBOR 
1 
1 
.34 
2 
6 
1.09 
. 502 
3 
6 
2. 92 
.239 
4 
5 
4.96 
. 528 
5___ 
5 
6. 54 
.297 
6 
5 
7. 52 
.214 
7 
5 
8. 27 
.216 
8 
5 
8. 75 
.434 
9 
3 
8. 95 
10 . 
2 
9. 09 
11 
i 
8. 80 
Ring No. 
N 
Mi 
P. E. 
KUKAK BAY 
i 
72 
0. 34 
0. 015 
2_ 
92 
2.44 
.040 
3 
92 
4. 85 
.081 
4 
81 
6. 44 
. 055 
5 
69 
7. 45 
.093 
6 
47 
8. 23 
. 116 
7 
34 
8.90 
.098 
8 
29 
9.31 
. 045 
9 
21 
9. 60 
.062 
10 
14 
9. 90 
.063 
11 
8 
10. 10 
.063 
12 
7 
10. 35 
.088 
13 
6 
10. 60 
.082 
14 
5 
10. 75 
.075 
15 
5 
11.06 
. 199 
16 
4 
11.35 
.199 
PORT HOLLER 
i 
18 
.39 
.020 
2 
29 
2. 30 
.364 
3 
20 
3. 47 
. 101 
4 
16 
3.60 
. 135 
5 
14 
5.50 
.627 
6 
13 
5.62 
.304 
7 
11 
5. 75 
.558 
8 
11 
6. 25 
.558 
9 
9 
6. 19 
.202 
10 
8 
6. 54 
. 237 
11 
5 
6. 77 
12 
2 
8. 03 
13 
2 
8. 21 
14 
2 
8. 35 
15 
2 
8. 46 
16 
1 
8. 73 
BIBLIOGRAPHY 
Brody, Samuel. 
1927. Growth and development, with special reference to domestic animals. III. Growth rates, 
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1916. Check list of the recent bivalve mollusks (Pelecypoda) of the northwest coast of America 
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1920. Edible mollusca of the Oregon coast. Occasional Papers of the Bishop Museum, Vol. 
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1908. The problem of age, growth, and death. 1908, 280 pp., 73 figs. New York and London. 
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