GRILSE 31 



presented by Mr. Malloch to the Perth Museum, a 

 grilse of 2 lb. 15 oz. The second specimen was 

 kindly sent to the writer, and was exhibited, with 

 the mark in situ, to the Royal Society of Edinburgh.* 

 It is a male grilse with genitalia in an undeveloped 

 condition ; length 24 inches, weight 4 lb. 8 oz. The 

 interval of time between marking and recapture is 

 thirteen months. Between the date of the first re- 

 capture and the end of the fishing season, 1906, those 

 wired grilse occurred not infrequently in the Tay 

 nets. No recapture was reported from any other 

 locality. The weights varied from 2j to 9 lb. The 

 following details of date and weight respecting the 

 recaptures during June and July will sufficiently 

 show the results of this experiment as regards 

 grilse : — 



* " Note on the Smolt to Grilse Stage of the Salmon," Free. Roy. 

 Soc, Edin., xxvi. 



