Translation 2783

that of females is 340 cm.
femaleS not more than 900 kg.
89•
Lare males weigh about 2,000 kg, but
The length of new-born pups varies
from 120 'to 135 cm, and their weight is up to 45 kg. .The canine
teeth (tusks) of the racific walrus are lare and massive.
in the
males they are thick and wedge-Lhaped, and in the'females slender
and sword-shaped. The maximum length of male tusks is 32 cm, and • •
that of-female tusks 70 cm. An adult m ale' s pair of tusks-weighs
10-12 kg. The walrus's hide is thick (up to 5 cm).; the neck and
of adult males are covered with warty outErowth:, of the skin; chest
.
the females do not have these outgrowths. During the period of max-
imum nutrition of the animals their subcutaneous blubber layer • •
attains a thickness of 12 cm. . . .
The walruses' main range (see Fig. 14) includes the Chukchi .
et
Sea, the soutien part of the -.1-tast . Siberian Sea, and the norther n .
part of the Bering Sea.
Walruses penetrate northward beyond 74 0 N
and westward to the eastern part of the lilast Siberian Sea. On the
coast of America they are found along the whole of the Peninsula of
Alaska as far as Point Barrow on the east. The soutiu:rn limit of
their range on the coast of Asia runs through tua Gulf of Anadyr
from Cape Navarin, and on the American coast it runs through Bristol
Bay and the Walrus Islands.
Pacific walruses make long mass migrations every year. In
winter a herd lives in the shallow-water zone in the . northern part
of the. Bering Sea, keeping to districts where tneir'food is abundant.
In April and May they begin to migrate northward, appearing on the
coasts of- southern and eastern Chukotka and on the American coast at
Seward -.»ehinsula.
Vass migration of walruses thouh erin :;trait
ends in late Hay or early June, and most of the herd heads for the
western part of the Chukchi Soa and the eastern part of
Brian Sea; a smaller part of the herd migrates eastWard, to the
north coast of Alaska.
In the summer 3.;_d
early autumn walrus,.:s 3re found in the
Chukchi Son in tnu rouion of horald n sd Wranc»1 I;_landn ai ai in Long
.Strait, and in th
Soa tIwy are foul t in its cas tern
part.- They for t
rookeries on ice-floes or, in tl -x: :-tboonce of tnese,
On :;ocno of tilt: aniinalp (only maloo of v::.riou:: 1;pund
Liii uunimur In t 1 .01mi lihOve r001;erieS in Lite
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