PLATE XXXII 



Fig. I. Fin whale, ?, No. 865. Right side of head. Note the sharp 

 distinction between the dark and hght baleen plates, the unpigmented 

 lower jaw and the unpigmented part of the upper jaw opposite the 

 white baleen plates. 



Fig. 2. The same whale. Left side of head. Here the baleen plates are 

 all dark and the upper and lower jaws are both pigmented. Note the 

 thin pale streak running back from the very small aperture of the ear. 



