189 measurements of Sperm whales taken at Akana, Japan during season of 1909 Sperm 60 ♂ July 21 " 25 " 25 " 27 " 40 ♀ " 43 ♂ " 40 ♀ Nine sperm taken at Oginohama but were not measured during 1909 In all the whales which I have examined of all species, there was considerable differences in body proportions viz. in the relation of the circumference to its length. Some whales were very "thick" others being long & slender comparatively. 8-20 A.M. No 72 Sperm whale ♀ jaws, Aug 20/10 - Akana Rocks Main Ventral surfaces are pinkish - throat, breast, abdomen & ventral line of finculament & furces - an other side of throat a few furcous near dark gray, but most all pink. Total length = 30' - 10" 940' Flukes & naval = 13' - 5" " " anna = 8' - 2" 245' Flukes (until to tip's along part edge) : 3' 11" = 119' " " tip' 2. tip' (estimated) = 7' 8" = 234 Swant to eye = 6' - 1" = 185' fin breadth = 11" = 28 " " blade = 4' - 10" = 14'/want at end of Height dorsal = 10" = 25' furcous Fin tip to ant wrist. : 3' - 11" = 119' " " " pit " " = 2' - 9" = 84'