APPENDICES.
87
1= 4.55 per cent.
1= 4.55 per cent.
25
November 25
December 19
Date.
LIST OF FŒTUses (arranged IN ORDER OF Date).
Female, 1 ft. 4 in.
Male, 5 in.-6 in.
2 ft. 1 in.
Number and Length of Dam.
Bex and Length of Foetus.
No. 18
47
ft.
9
6 in.
14
49.75
ย
9 in.
D
"
59
45.5
"
20
69
4.8.5
31
11
24
94
48
Female, 11 in.
12
#
"
80
186
46
11
"
81
158
48 "
Male, 1 ft. 5 in.
"
11
189
48.5
H
"
217
49-5
1 it. 9 in.
29
"J
298
52
1 ft. 6 in.
J
"
288
45
21
#2
2 ft. 1 in.
Date.
January 5
7
8
15
"
Length of foetus. Minimum:-5 in. to 8 in. Maximum:-2 ft. lin.
Average length of 11 fœtuses
1 ft. 4 in. (approximate).
Female, 2 ft.
25th November and 20th December. 30th December and 15th January. between 25th November and 15th January,
11=100.
ii. Fœtuses were probably present in 2.
Colour not noted.
15th November (3).
24th December (97).
iii. Evidence of recent impregnation in 1
Marble-bellied.
13th December (48).
Two of the mature females were not pregnant
i. Nursing female, 1
Black-bellied.
29th December (126).
ii. "Heifer," 1
Black-bellied.
18th December (54).
Five of these 22 whales were virgin and immature :
their lengths ranged from 27.5 ft. to 39.75 ft. ...
Marble-bellied, 1.
16th January (295).
Black-bellied, 4.
3rd December (28), 18th (52).
5th January (181), 14th (276).
5=22.7
per cent.
PUBLIC RECORD OFFICE
།། ། ། ། །།།
Total number examined
Males
Females
Not sexed
Lengths:-5 in. to 2 ft. 1 in.
2=182 per cent. 7=63·2
5 in.-6 in. to 1 ft. 5 in.
H
33
»
2=18.2
11 in. to 2 ft. 1 in.
6 in. to 9 in,
100
Analysis of the data relating to breeding collected from female humpbacks by Major Barrett-Hamilton, at South Georgia :-
Average length of 11 fœtuses measured between 25th November, 1913, and 15th
January, 1914:-1 ft. 4 in. (approximate).
The genitals were examined in 22 cases...
Seventeen of these 22 whales were mature; their
lengths ranged from 42 to 52 ft.
Fifteen of the mature females were pregnant
i. Foetuses were ascertained to be
present in 12
White-bellied dams 2; (fœtuses, 2
above average length)
4
5th January (189), 7th (217);
foetuses, 2 ft., 1 ft. 9in.
Marble-bellied, 5 (fœtuses, 1 above, 4
below average length)
12=100
Per cent.
2=16-7
5-41.7
25th November (13, 14); fœtuses,
6 in., 9 in.
20th December (69), 24th (94);
fœtuses, 5-6 in., 11 in.
8th January (223); fœtus, 1 ft. 6 in.
Black-bellied, 4 (foetuses, 2 above,
1 average length)
4-33.3
19th December (59), 31st (153);
fœtuses, 1 ft. 4 in., 1 ft. 5 in.
fœtuses, ?, 2 ft. 1 in.
12th January (251), 15th (288);
Colour not noted, 1 (fœtus above
average length)
1- 8.34
30th December (136); fœtus 2 ft. 1 in.
100
22=100
15-68-25 per cent.
The organs of lactation were examined in 32 cases Twenty-two of these 32 whales were mature; their
lengths ranged from 42 to 52 ft.
Six of the mature females had milk their lengths
ranged from 45 to 48 ft.
i. Nursing females, 3
(a) Nursing and pregnant, 1.
Marble-bellied.
13th December (48, recently impregnated). (b) Nursing, but not pregnant, 1.
Black-bellied.
29th December (126).
(c) Nursing; genitals not examined, 1.
Colour not noted.
7th January (211).
ii. Some milk present in glands, 3
Marble-bellied, 1.
25th November (13, pregnant, 6 in. fœtus). Black-bellied, 1.
12th January (251, pregnant, small fœtus). Colour not noted, 1.
15th November (3, probably pregnant, small
foetus).
One case in which it is doubtful whether milk was
present or absent; no note as to pregnancy
Colour not noted.
31st December (146).
Fifteen of the mature females were without milk:
their lengths ranged from 42 to 52 ft.
Of these 10 were pregnant ;·
White-bellied, 1.
7th January (217, foetus 1 ft. 9 in.). Marble-bellied, 4.
25th November (14, fœtus 9 in.).
20th December (69, fœtus 5-6 in.). 24th December (94, fœtus 11 in.). 8th January (223, fœtus 1 ft. 64 in.).
100
32=100
3= 9.39 per cent.
3= 9.39 per cent.
1= 3.18 per cent.
15= 46.9
per cent.
Reference :-
23 PUBLIC RECORD OFFICE, LONDON
ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC- COPYRIGHT PHOTOGRAPH-NOT TO
88
APPENDICES.