peduncle as in other Finbacks. External Measurements: Broad begin 1-1803- 13-520 35-300 2-775^ 14-560 36-38 3-380 15-810 37-30 4-465^ 16-420 38-390 5-330 17-1200 39-80 6-600 18-181 40-3/2. 7-1385^ 19-53 41-162 8-86 21-39 42-32 9-16 23-89 43-72 10-8 26-22 greatest breadth and first 7 pleura = 102 Depth notched .. = 19 Length white portion of balance row = 93 Meatplates in .. .. .. 2/14 Length fin (up to pountment) = 14/1 No 46 Aug 8-'05 Finback Tyee Alaska. Color: Left side top of head + back slate + down to level of fin slate or neutral tint back to dorsal fin-- from dorsal fin to pleurae only the top edge of peduncle is neutral - Below left side from fin to mid ventral line has furrows all dark - from fin halfway to center line folds are slate - rest of folds to mid-ventral line are white - the change from slate to white on the folds is gradual - From insertion of fin the two reserved areas of white extend forward & backward (same on both sides) Right half top of head is light blue slate gray which extends above blowholes, backward to opposite ear + downward to a little below level of eye - the edge anterior posterior of side scutum is very light - rest of back + down to dorsal level of fin is neutral tint like other side - Right ramus is light blue