2 H. W. MARETT TIMS. 
MATERIAL. 
The present collection consisted of twenty-nine embryos together with some 
portions of the reproductive organs, presumably adult. The youngest specimen had a 
length of 12 mm., measured in a direct line, and was lying in position “in utero” 
(Pl. L, fig. 1); the oldest, also a uterine specimen, had a total circumferential length 
of 795 mm., and weighed 124 lbs. 
Nearly all the material had been preserved in corrosive, but in the larger 
specimens the uterus had not been opened and thus the preservative had been unable 
to penetrate sufficiently to act efficiently. 
Omitting the very early uterine embryos and one or two of the larger ones that 
had been sliced, the following Table furnishes a list of the remainder with their 
measurements and dates and places of capture. 
The measurements here tabulated are :— 
(a) Length of body taken circumferentially from the tip of the snout to the root of the tail. 
(6) Length of head (circumferentially) from the tip of the snout to a point on a level with the 
angle of the mouth. 
(c) Length of the tail. 
TABLE I. 
MEASUREMENTS OF FREE EmBRyYos IN ORDER OF SIZE. 
— Date of Capture. Place of Capture. ag Head length. Tail length. 
1 Feb. 9,1908. . Hut Point. 61 mm. 17 mm. 4 mm. 
2 Feb. 9,1908. . . ‘5 63 mm. 17 mm. 4 mm. 
3 Feb. 9, 1902. x; 64 mm. 15 mm. 4 mm. 
4 Feb. 25, 1908 +5 66 mm. 19 mm. 4 mm. 
5 Feb. 25,1908 . . 35 76 mm. 26 mm. 4mm. 
6 Feb. 25,1908 °. . i . 98 mm. 30 mm. 4 mm. 
7 Feb. 25,1908 . . , 100 mm. 34 mm. 6 mm. 
8 Mar. 1-20,1908. . Not stated. 105 mm. 30 mm. 8 mm. 
9 Mar. 1-20,19038. . " 5 107 mm. 25 mm. 7 mm. 
10 Mar. 9,1908. . Cape Armitage. 110 mm. 33 mm. 8 mm. 
11 Feb. 25,1903... Hut Point. 114 mm. 36 mm. 6 mm. 
12 Mar. 1-20, 1903. . Not stated. 127 mm. 32 mm. 9 mm. 
13 Mar.9,1903  .. Cape Armitage. 126 mm. 36 mm. 9 mm. 
14 Feb. 25,1903 . . Hut Point. 137 mm. 37 mm. 10 mm. 
15 Mar.9,1903  . Cape Armitage. 139 mm. 36 mm. 10 mm. 
16 Mar. 1-20,1903. . Not stated. 144 mm. 40 mm. 15 mm. 
17 Mar. 1-20,1908. . 33 Pa 147 mm. 42 mm. 12 mm. 
18 Mar. 1-20,19083. . i - 152 mm. 40 mm. 7 mm. 
19 Mar. 1-20,1903. . 45 35 153 mm. 40 mm. 13 mm. 
20 Mar.9,1903 . . Cape Armitage. 158 mm. 36 mm. 10 mm. 
21 Mar. 1-20, 1903. . Not stated. 160 mm. 42 mm. 10 mm. 
22 Feb. 25,1908 . . Hut Point. 161 mm. 47 mm. 10 mm. 
23 Mar. 1-20, 1903. . Not stated. 190 mm. 50 mm. 12 mm. 
24 Not stated. ‘3 % 560 mm. 155 mm. 52 mm. 
25 Not stated. 3 es 795 mm. 230 mm. 70 mm. 
