Wola No. 9.) Notes on the Dugong. 243 
[N.8.] 
certainly have the appearance, of the bristles of a scrubbing 
brush. I have already noted the small size of the mouth, and I 
believe, judging from the small area of the articular surface of 
the lower jaw, as well as from observations on the fresh specimen, 
that the jaw has very little, if any, lateral movement. For all 
these reasons I doubt whether the persistent teeth have any 
function beyond crushing the calcarious or other growths brushed 
off the seaweed by the hair-papillee of the anterior palate. 
The fishermen told me that they took females with young 
ones accompanying them at all times of year, but never more than 
one young one with each female. They had never seen the female 
raise the upper part of her body vertically from the water, clasp- 
ing the young one in her flippers, which seem hardly suitable for 
the purpose. Judging from the scars on the specimen examined, 
I believe that the males fight with their tusks at the breeding 
season. 
a NN NN NO 
