20 MR. T. SOUTHWELL ON MIGRATION OTHER THAN OF BIRDS, 
it has been clearly demonstrated by Professors Eschricht and 
Reinhardt that such has not been the case. This animal, 
known as the Atlantic Right Whale ( B . biscayensis), has, it is 
true, become very scarce in recent times, but is still met with 
on rare occasions in precisely the same regions as formerly — 
from which it may be exterminated but can never be driven, — 
and it performs its seasonal migrations with the same 
regularity, frequenting the waters of the Bay of Biscay and 
the Mediterranean in winter and the seas in the neighbourhood 
of Cape Farewell, eastward to the North Cape, in summer. 
Whether the Whale known as B. australis is specifically the 
same, although probable, is not universally admitted ; if, 
however, such is the case, the range as a species is vastly 
more extensive ; but in that case it will most likely prove 
that the southern form is racially distinct, and that each is 
restricted to its own somewhat limited area. It is certain 
that any true Balaena which has occurred on our coast 
belonged to this species. • 
The Polar Right Whale is another typical migrant. It 
would occupy too much space here to enter into particulars 
as to its annual movements, and I have already done this 
somewhat fully in another place,* with the result that instead 
of this species being circumpolar and unrestricted in its 
movements, I have endeavoured to show that there are three 
distinct races, each inhabiting a separate area, namely Davis 
Strait to the west of Greenland, the Greenland Sea proper, 
and the seas north of Bering Strait, that within these limits 
each race performs its somewhat complex migrations north 
and south, and that they rarely if ever intermix ; also, that 
instead of being circumpolar in the usual acceptation of the 
term, between those inhabiting Davis Strait and the Greenland 
Seas lies the whole width of the continent of Greenland, the 
southern extremity of which they never pass, and between 
20° East Longitude and 17 1° East, no Whales are known to be 
found. We then reach the habitat of the American Bowhead, 
the range of which to the eastward extends to the Polar 
* “ The Migration of the Right Whale.” ‘Natural Science,’ vol. xii. pp. 
397-414- 
