have gonads at the same stage of maturation are continually coming into the waters 

 adjacent to Palao.^»^ This is still a hypothesis, and in order to prove or dis- 

 prove it one would have to study the differences in the individual gonads within 

 the schools and the variations as between schools by examining a large number of 

 specimens throughout one whole year. The opinion vriiich the author has reached from 

 the results reported in this paper is that if the annual changes in the degree of 

 ripeness of the gonads could be ascertained in every area where skipjack are taken, 

 some clarification of the problems of the location of spawning grounds and the mi- 

 grations of the species would be attained. 



^This point is not limited in its application to the skipjack which are taken in a 

 fairly advanced stage of maturity, 



^^ile at Palao I heard that skipjack with ripe ova are found lr> the waters of the 

 Toko be and Celebes areas. I waited for an opportunity to investigate this in- 

 teresting report, but was unable to do so. On ny return trip in January of this 

 year when 1 stopped at Saipan I was able to collect the ovaries of two skipjack, 

 PVom the size of the organs I judged that they were from medium-sized fish and the 

 person from whom I obtained them confirmed this judgment, Tlie maturity of both 

 8p>ecimens was of Grade 2, 



