354 
Merlsm and Sex in " Spinax Niger " 
TABLE 17. 
Half Vertebrae 
32 33 
34 35 36 
37 
38 39 40 
41 
42 43 
44 
45 
46 47 48 
No. 
S adults 
— — 1 
6 
11 12 25 
18 
13 9 
3 
2 
100 
S embryos 
1 — 
— — 3 
5 
18 20 43 
18 
18 7 
4 
1 
1 — — 
145 
? adults 
12 
If) 20 29 
34 
27 13 
1 
1 
1 — 1 
163 
f embryos 
— 1 3 
6 
24 22 40 
30 
17 0 
4 
159 
<7 adults 
d embryos 
¥ adults 
? embryos 
M. 
40-370 
40-034 
40-288 
39-956 
p. E. M. 
± 
•128 
•107 
-101 
•091 
(T 
1-9008 
1-9109 
1-9209 
1-7022 
p. E. a 
± 
-0907 
•0759 
-0718 
■0644 
C. V. 
4-71 
4-79 
4-77 
4-26 
TABLE 18. 
TABLE 19. 
Total 
Segments 
J adults 
t? embryos 
¥ adults 
? embryos 
62 63 64 65 66 67 68 
- 6 23 43 18 9 
1 21 40 49 25 7 
- 2 24 05 44 23 
1 11 44 61 30 12 
100 
145 
163 
159 
M. 
(? adults 
65-040 
p.e. M. ± -0707 
a 1-0480 
p.e. (7 ± -0499 
c. V. 1-612 
embryos ? adults 
64-724 
-065 
1-1536 
•0457 
1-782 
65-472 
-055 
1-0410 
•0389 
1^590 
? embryos 
64-906 
-OoO 
1-0449 
•0395 
1-610 
Collector 
Nerves 
4 5 6 7 
No. 
<? adults 
? adults 
21 113 65 1 
10 170 102 2 
200 
296 
cf S ? S 
M. 5-230 5^304 
p. E.M. ± -030 ^024 
(7 -0301 -6059 
p. E.<r ± -0212 -0168 
c.v. 12-05 11-42 
TABLE 20. 
PoST-GlEDLE 
Nerves 
6 7 8 9 10 11 
No. 
<? adults 
? adults 
— 1 18 102 06 13 
7 71 163 49 6 — 
200 
296 
is ? s 
M. 9-360 7-920 
p. E.M. ± -039 -030 
0- -8188 -7580 
p. E. (7 ± ^0276 -0215 
c. V. 8-748 9-570 
TABLE 21. 
1st G.-P. 
Nerve 
26 27 28 29 30 31 
No. 
tT adults 
? adults 
2 19 84 77 14 4 
— 6 58 149 79 4 
200 
296 
<? s ¥ s 
M. 28-470 29-057 
p. E.M. ± -041 -030 
<T -8713 -7712 
p. e. 0- ± ^0294 -0213 
c. V. 3-000 2-654 
