i6 



BULLETIN OF THE BUREAU OF FISHERIES. 



With few minor exceptions, the results obtained from the study of this collection 

 are similar in all respects to those obtained from a study of the June collections. The 

 difiference in length between the fish which have begun the rapid intermediate growth and 

 those which have not is less but is plainly indicated, the fish having the intermediate 

 band being larger. The average estimated length at the time of beginning the inter- 

 mediate growth is approximately the same, 55.3 ram. 



A collection containing 51 specimens was made at Point Ellice, August 12, 1916. 

 Another series of 13 specimens was collected from the same place August 26, 1916. 

 Since no particular difference in these two collections has appeared as a result of their 

 study, they will be considered together. (See Table 1 1 .) The average length is 93.9 mm., 

 ranging from 49 to 122 mm. The mode is at 93 mm. It will be noticed that the average 

 length of this collection is approximately the same as that of the July collection. It 

 might be concluded from this that an average length of 92 or 93 mm is the maximum 

 attained in the estuary, but this conclusion is not borne out by subsequent collections. 

 Forty of these specimens are males, averaging 92 mm. in length. Twenty-four females 

 average 97.2 mm. 



The scales do not differ greatly from those of the July collection. The number of 

 rings has increased slightly, although the size of the scale, as indicated by the length of 

 the anterior radius, remains practically the same. The estimated length at the time of 

 beginning the intermediate growth is nearly the same as in June and July. Six of the 

 specimens collected August 26 begin to show at the periphery of the scales narrow 

 rings, indicating the slower winter growth. 



Table II. — Fry from Point Ellice, Wash., Aug. 12 and 26, 1916. 

 TWENTY-SEVEN SPECIMENS WITHOUT INTERMEDIATE GROWTH. 



Leneth. 



Number. 



Scale record. 



Average 



number of 



rings. 



Average 

 length of 

 anterior 

 radius. 



106 to 



lOI to 



96 to 

 91 to 

 86 to 

 81 to 

 76 to 

 71 to 

 66 to 

 61 to 

 56 to 

 51 to 

 46 to 



no nun. 

 105 mm. 

 100 mm . 



95 mm. 



90 mm. 



8s mm. 



80 TTiTn , 



75 mm. 

 70 mm. 

 65 nun. . 

 60 mm. 

 55 mm. 

 50 nun. 



Av. 87.8 mm. 



14.0 

 i6.o 

 14-4 

 13-7 

 14. o 



10. o 

 10. o 

 9.0 



55- 5 

 48.0 

 54-3 

 47.0 

 45- 7 

 4J.O 



4J.0 



38. o 

 33- o 



18. o 

 45-7 



