The g... adult. Finback white part of balen The length of the white portion of the balen now in Finbacks is necessarily of somewhat indefinite determination, in some individuals, transeially, between the light & dark portions, was abrupt - in others there was a gradual shading off from the white into the dark. the plates of transite's having half their external edges white & half dark. length of balen plate All of my measurements of "Length of largest portion isy balen" are taken along the inside of the plate from the gunn to the tip not including the wristles. length of longest balen plate Drew does not state how this measurement was taken in his specimens. Finback? Finana sternum The sternum of an adult [illegible] which I photographed at Aikawa Japan is most nearly of the shape of Fig. 21 page 141 True's "whalebone whales." It is half way between Fig. 21 (page 141) & 49 (page 187) Finback skin The outer layer of the epidermis of Finback is much thicker than that of either Blue, Finback or Sei whale.