8:30 P.M. 79 no.20 Frilback ♀ June 9/10 Aikawa This whale, the largest Frilback I have so far seen, contained a foetus (♀) about 3 ft. long. This animal presented peculiarities of coloring such as I have never seen in a Frilback before. They were so striking that Mr. Matsurawaka, the cutting manager, asked me if I did not think it a cross of Frilback & Sei whale. I do not believe that such could have been the case, as the color peculiarities were simply exaggerations of the normal Frilback type. The baleen, fins, flukes, etc. were all typically Frilback. Color I did not have an opportunity to examine carefully its head. The back was neutral tint shading off into light gray on its sides. The tip and right edge of the rostrum were above marbled with white, dark slate and brownish gray for a distance of 130 cent. Below On the under side it was white & light pink. This area became same extent as the white portion of the baleen now: There is a semicircular area just infrant of left fin which was distinctly lighter in color than back. A similar one appeared to be on the right side but this was shifted before I could examine it carefully.