FT 



m 



URINARY BLADDER 



SWIMBLADDER 



GONAD 



LIVER 



CAECAL MASS 



SPLEEN 



STOMACH 



INTESTINE 



GALL BLADDER 



BODY WALL 



Figure 15. — Ventral view of in situ visceral patterns of Thunnus 

 species. Arranged from left to right in order of increiusing fork 

 length. ALA— 780, 875, 1,030 mm.; ALB— 637, 700, 808, 1,340, 



82 



U.S. FISH AND WILDLIFE SERVICE 



