PACIFIC HERRING 
255 
Table 9. — Variation in number of vertebras in southeastern Alaska 
Locality 
Date 
Vertebra.* 
Num- 
ber 
Mean 
Prob- 
able 
error 
Standard 
deviation 
of dis- 
tribution 
47 
48 
49 
50 
51 
52 
63 
54 
55 
56 
1925 
7 
23 
17 
3 
50 
52. 32 
0.075 
0. 786 
f 1925 
1 
6 
25 
17 
2 
50 
52.28 
.074 
.776 
Craig. 
1 1928 
5 
61 
37 
6 
99 
52. 44 
.046 
. 685 
] 1928 
5 
52 
34 
6 
97 
52. 42 
.047 
. 686 
l 1928 
1 
7 
48 
38 
4 
98 
52.38 
.049 
.722 
2 
22 
176 
126 
18 
344 
52.40 
.026 
. 712 
Stephens Passage 
1928 
1 
— 
3 
3 
86 
459 
368 
40 
2 
— 
962 
52.36 
.017 
.769 
( 1925 
1 
10 
13 
1 
25 
52. 56 
.086 
.638 
\ 1927 
2 
12 
94 
153 
12 
1 
274 
52.60 
.029 
. 709 
( 1927 
61 
113 
18 
192 
52. 78 
.029 
. 601 
North arm of Pillar Bay 
' 1927 
7 
63 
102 
19 
1 
— - 
192 
52.71 
.035 
.713 
Total 
2 
20 
228 
381 
50 
1 
1 
683 
52.68 
.018 
.683 
1927 
3 
62 
111 
12 
188 
52.70 
.021 
.608 
Surprise Harbor. . 
1927 
6 
46 
99 
12 
1 
— - 
164 
52.73 
.035 
.671 
Total. 
9 
108 
210 
24 
1 
— 
352 
52. 72 
.023 
.634 
f 1927 
1 
28 
59 
5 
93 
52. 73 
.040 
. 571 
} 1927 
8 
80 
73 
7 
2 
170 
52.50 
.037 
.705 
( 1927 
4 
65 
107 
24 
200 
52.76 
.033 
.682 
Total 
13 
173 
239 
36 
2 
— 
463 
52.66 
.021 
.681 
1925 
6 
15 
4 
25 
52.92 
.078 
.680 
Table 10. — Variation in number of vertebrae in Prince William Sound 
Locality 
Elrington Passage 
Bainbridge Island — 
Prince of Wales Pass. 
Elrington Passage 
Prince of Wales Pass. 
Procession Rocks 
Total . 
Maeleod Harbor. 
Total. 
Puget Bay... 
Port Fidalgo. 
Snug Harbor. 
Total ... 
Eshamy Bay. 
Total.. 
Cabin Bay, Naked Island- 
South Bay, Naked Island.. 
Total. 
McClure Bay. 
Date 
1925 
1925 
1925 
1926 
1926 
1927 
1927 
1926 
1926 
1925 
1927 
1927 
1927 
1927 
1927 
1927 
1927 
1927 
Vertebrae 
47 48 49 50 51 52 53 54 
118 
75 
139 
220 
192 
143 
41 
91 
75 
48 
42 
22 
Num- 
ber 
45 
100 
44 
75 
50 
48 
39 
401 
100 
100 
60 
57 
60 
367 
177 
137 
150 
26 
322 
100 
50 
150 
75 
13 
50 
138 
25 
25 
25 
74 
50 
25 
224 
Mean 
52.91 
52. 72 
52. 73 
52.75 
52.82 
52.77 
52.64 
52.76 
52.71 
52. 77 
52.84 
52.58 
52.70 
52.72 
52.45 
52.44 
52.51 
52. 50 
52.57 
52. 45 
52.41 
52.55 
52.84 
52.82 
52.83 
52. 81 
52.62 
52. 82 
52.80 
52. 96 
52.96 
52.84 
52.85 
52.88 
63. 00 
52.90 
Prob- 
able 
error 
0.053 
.055 
.076 
.060 
.056 
.064 
.068 
.024 
.050 
.054 
.064 
.065 
.068 
.027 
.038 
.040 
.039 
.089 
.057 
.195 
.090 
.029 
.044 
.060 
.035 
.050 
.073 
.040 
.081 
.089 
.073 
.062 
.065 
.085 
.030 
Standard 
deviation 
of dis- 
tribution 
0.526 
.814 
.760 
.768 
.590 
.684 
.628 
.719 
.739 
.798 
.674 
.723 
.780 
.755 
.750 
.692 
.708 
.746 
.892 
1. 557 
.720 
.772 
.644 
.623 
.636 
.647 
.767 
.693 
.599 
.662 
.543 
.791 
.682 
.632 
.657 
Total 
