of the Fishery Board for Scotland. 23 J 



Centimetres, 



OctoVjer. 



November. 



8-9 



2 



- 



9-10 



_ 



- 



10-11 



_ 





11-12 



_ 





12-13 



_ 



_ 



13-14 



3 





14-15 



2 



1 



15 16 



2 



_ 



16-17 



5 



2 



17 18 

 i/-lo 



0 



1 



18-19 



3 



1 



19-20 



9 



4 



20-21 



9 



5 



21-22 



4 



8 



22-23 



4 





23-24 



1 



3 ' 



24-25 



3 



I'" 



25-26 



6 



6 



26-27 



12 



11 



97 98 



c 



o 





28-29 



11 



10 



29-30 



10 



14 



30-31 



1 



9 



31-32 



2 



3 



32-33 







33-34 







34-35 







35-36 







36-37 



1 





In the October measurements, which refer to specimens taken off 

 the Shetlands, there appear to be four groups represented, the first by- 

 two specimens 83 and 87 mm.; the second ranging from 131 mm. to 

 227 mm., the mean breadth being 187'6 mm. (7| inches); the third 

 measuring from 235 mm. to 315 mm., the average width being 275*1 mm. 

 (IQiJ inches), and one specimen of 364 mm. The November measure- 

 ments from the Moray Firth represent two groups, one from 145 mm. 

 to 219 mm., the mean width across the pectorals being 193*2 mm. (or 7§ 

 inches), and one ranging from 233 mm. to 316 mm., the mean width 

 being 280*5 mm. or 11^ inches. If the limits of the groups are correct, 

 the growth in width in a year would be about Zj\ inches in the October 

 series and 3| inches in the November series ; and probably this fairly 

 well represents the actual growth of the starry ray. 



