. 'I- * 







Figure 2.— A variety of shark-inflicted wounds observed on elephant seals and sea lions at Ano Nuevo. A crescent shaped wound (a) 

 and toothprints (b) on adult male elephant seals. A crescent bite on the dorsal posterior of an adult female elephant seal (c) and a 

 large imprint of both jaws on an adult female with a blind left eye (d). Two large chunks of flesh bitten off the left side of an adult 

 male elephant seal who subsequently died from his wounds (e). A California sea lion bearing a recently inflicted shark injury (f). 



The results of this study support and augment 

 those of Ainley et al. (1981) on South Farallon 

 Island near San Francisco, Calif. They found 

 that white sharks were responsible for most of 

 the shark attacks observed on pinnipeds in the 

 waters surrounding the island during the period 

 September 1970 to February 1979. Northern ele- 



phant seals were attacked more frequently than 

 harbor seals and sea lions, and shark-bitten fe- 

 male elephant seals exhibited low reproductive 

 success. 



Shark attacks on elephant seals of Ano Nuevo 

 Island and South Farallon Island (Ainley et al. 

 1981) appear to be increasing, but more data 



894 



