WHALE HUNTING WITH GUN AND CAMERA 



has more or less regular migrations and there is 

 evidence that individuals travel from the Antarctic 

 into the North Atlantic and Pacific Oceans. 



Strangely enough a clew to their wanderings has 

 been given by a parasite which lives upon the whale's 

 body. This Copepod, known as Penella antarctica, 

 produces a peculiar white or grayish oval scar two 

 or three inches in length, which for many years was 

 supposed to be a feature of the sei whale's coloration. 

 I suspected at first sight that these spots \vere scars left 

 by a parasite of some sort, but it was not until two 

 years later that my suspicion was proved correct and 

 the animal itself discovered. 



It was doubly interesting to find that this parasite 

 is an Antarctic species which has never been known 

 from the North Atlantic or Pacific Ocean. On the 

 second French Antarctic Expedition Dr. Liouville 

 discovered that all the sei whales taken in the South 

 Atlantic were bristling with these parasites but ex- 

 cept in rare cases the whales of the north have none 

 of them in situ. The parasites are short-lived and 

 probably die or break off during the northward travels 

 of their hosts, leaving only the scars behind. 



It is not probable that all sei whales make this mi- 

 gration annually in fact it is highly improbable that 

 such is the case 'but herds are apparently formed 

 which visit certain localities every year, now and then 

 being reinforced by individuals which have come either 

 from the Antarctic into the north or vice versa. 



The migration of the large Cetacea is a subject 

 about which very little is known and of which but 



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