40 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 









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Figure 1. — Projected impressions of scales of bluefin tuna. Arrows indicate annuli. A. Scale from fish 34 cm. long 

 taken off Martha's Vineyard, September 1952; no annulus. B. Scale from fish 60 cm. long taken oflf Martha's 

 Vineyard, July 1950; 1 annulus. C. Scale from fish 80 cm. long taken off Martha's Vineyard, August 1952; 2 

 annuli. D. Scale from fish 104 cm. long taken off Cape Cod, October 1950; 3 annuli. 



