of the Fishery Board for Scotland. 



271 



which is 140 ruin, long, could not be less than ten months old, but may 

 be one year old. The specimen, 137*5 mm. long, captured in July, is at 





°g 











Month when 





Date of 

 Capture. 



S3 2 











Eatchingmay 

 be supposed to 

 have taken 





a| 



§ s 



Sizes in Millimetres. 



Calculated Age. 



Locality. 















place. 





Jan. 23, 1885 



5 



9 : 10 : 11 : 



11:11 



Recently hatched 



January 



Marine Laboratory, St 













(known age) 





Andrews. 



„ 24, 1893 



large 



18-18-5-19-20 



Over 1 month 



December 



5 miles off the May. 





num- 

















ber 















Feb. 18, 1886 



3 



11-25:12: 



12 



A day or 2 (known 



February 



Marine Laboratory, St 













age) 





Andrews. 



„ 21, 1890 



1 



24 







Between 1 and 2 

 months 



December 



Surface net, Firth of 

 Forth. 



Mar. 16 and 



2 



13-5 



:14 





Under 1 mouth 



February 



Marine Laboratory, St 



17, 1886 















Andrews. 



April 8, 1886 



1 



17 







About 1 month 



March 





„ 18 and 



6 



19: 



20:20 



21 : 22 : 22 



February 



„ 



26, 1886 

 April 20, 1886 



" " " 















2 



19: 



21 





Free for a fortnight 



April 



ii ii i. ii 



1 



20 







(known age) 

 Newly hatched 

 (known age) 



ii 



ii ii ii ii 



May 1, 1886 



2 



21: 



22 





About 1 month 



End of Mar. 



n ii ii ii 



„ 3, 1886 



2 



22: 



23 





Between 1 and 2 



ii ii 

 March 



Bass, W. by N. ,10 miles, 



,, 7, 1890 



3 



19: 



20:20 













months 





' Garland.' 



22, 1886 



1 



22 







About 1 month 



April 



Marine Laboratory, St 

 Andrews. 



♦February 



, ( 



M 



140 



156 







, , 1 year 



'„' ,, +1 month 



February ) 

 January ( 



Off Fife Coast. 



*July 



i 



137- 



5 





,, „ +4 months 



March 



St Andrews Bay. 



„ 11, 1885 

 Aug. 1885 

 *Mar. 1886 



i 



156 







,i +4 „ 



February 



i 



181 







+6 



Off Fife Coast. 



i 



203 







,, 2 years 



March 



* „ 3, 1886 

 *July 



i 



243 







m +2 „ 



J anuary 





i 



225 







„ +4 „ 



March 





August 

 *May 1885 



i 



236 







„ +4 „ 



February 





i 



296 







+5 „ 



December 



St Andrews Bay. 



Mar. 25, 1886 

 *August 



i 



437 







,,4 „ +1 month 



February 



i 



450 







,, „ +5 months 



March 



Off Fife Coast. 



♦September 



i 



450 







» » +6 







* Sizes given in Professor M'Intosh's Notes. 



least one year and four months. It is probably small for its age. About 

 140 mm. may therefore be taken as about the length reached in one 

 year. 



The Lemon Dab. 



(Pleuronectes microcephalics.) 



The ova of the lemon dab, preserved at St Andrews, were obtained in 

 May, June, July, and August. They were found in greater abundance in 

 June and July, and of these two, July was the month in which the 

 larger number of ova were got. Many embryos were hatched at the 

 Marine Laboratory, St Andrews, on 15th July 1890, from ova received 

 from Newhaven. 



The age of the specimen 25 mm. long, captured on 7th May 1890, is 

 very doubtful. From its length it is not likely to be less than about two 

 months. If it is that age, it must have been spawned some time in March. 

 There is no evidence of spawning taking place in March. Its age must 

 therefore be calculated from July or August (the end of the spawning 

 season), of the preceding year. If it is supposed that it was spawned in 

 August, its age will be about nine months. This specimen must then 

 have been excessively slow in growth. On 27th April 1889, a lemon dab 

 was caught at St Andrews, which was only 9 '75 mm. in length. That 



