Translation 2783

.... 30f3
t^e9.r
).1.1Ps
feed on ce'`?ha lo :oQ.5.
re-r»'oductiot:, has not been stt?died..
of Pre;^°nanc,; in sucklin^, fe'inales.
ce,-,se to be milk-fed ^,^^en th.^y attai n
Cases are recorded
it is possible tt at the calves
a length of aôout 170 cm.
i^:u-nerous traces of attachment by barnacles have been observed
on the bod^,y behind the dorsal fin.
These whales are not hunted.
Southern Dottle-nosed `,!hale ( jIyi^eroodon planifrons)
Southe-rn bottle-nosed whales are found in the southern hemis»here
off the coasts of Ar[,entina, Australia, Tasmania, and New
Gea.land . In s
um.1e-r they are widely distributed through Antarctic
waters, although they are rarely encountered; they have been observed
in the Atlantic sector a.lmost at 61° S, in the Indian Ocean sector
about 560 S, and in.the Pacific sector near 64 ° S. They usually
occur in saall grouPs of not more than ten or twelve. When feeding
they stay under water for 30 or 40 minutes, and then for three or
four minutes they emit up to
six or eight small inconspicuous sl-^outs.
t•ihile travelling they sta,y' under water for ten. or twelve minutes and
then emit two or three spouts during a period of 10 to 30 seconds.
They migrate to temperate waters for the winter.
Their biology is almost
maturity at a length of 550-570
of 257^ to 321;'^..
The weights of a, male 700
unstudied.
cm.
cm in length were 5,200 kg and 3,800
cm
cutar.eous blubber contained from 6c.)^
the
Their
in
kg
lungs, heart, and liver were 50 kf_r^,
These whales are not hunted.
The females attain sexual
milk has a fat content
length and of a female 570
respectively.
Their stiibto
71^^ of oil. The weights of
13 kg, and 32 kg.
Common Dolphin (Delrhinus del^^his)
In the waters of the southern hemisphere common dolphins
are founâ off the coasts of i3ra.zil, South Africa, Ceylon, Australia,
0)
Tasmania, New Zealand, and other countries.
Their biology has not been studied. They keep to waters
Wit,-, a, tem;,era.ture of 14° to 17o C. Ii. October 1964: 93 common
dolphins i?rrished. in sha,r?k, nets near Durban.
They are not hu-r:ted corl."E.^^.,ciall.,y. In 1953 ^^^ ^'-I>out