3flfeai^ 



Figure 38. — A series showing the extreme variability in dorsal fin shapes of humpback whales: (a) a small ridge, (b) sUghtly falcate, (cl triangular with a 

 pronounced hump, (d) slightly rounded, (e) distinctly rounded, and (f) taller and more distinctly falcate. {Photos from northern West Indies by H. 

 E. Winn [a, c, e\ and C. McCann [b]; off Baja CaUfomia by K. C. Balcomb |<fl; and off St. Augmtine, Fla. by D. K. CaUweli \f\.) 



45 



