HUMPBACK WHALE ; CALIFORNIAN GREY WHALE 255 



the fall is most marked in the case of the Grey Whale, of which 

 an annual average of 81 is recorded for the period 1915 to 

 1919, but of only 21 for 1922 to 1926 ". In the latest available 

 world-whaling statistics there is not a single California Grey 

 Whale recorded. 



The Grey Whale, like the Humpback, is usually heavily 

 parasitized externally, and Andrews tells us that the entire 

 body is more or less thickly infested with whale lice of the 

 Amphipod genus Cyamus, and by a species of barnacle which 

 embeds itself deeply on all parts of the body. On the snout, 

 too, there is a structure similar in appearance and position 

 to the bonnet ol the Black Right Whale and, according to 

 Andrews, it is produced as in that species by the action of the 

 parasitic Cyamus. 



