270 



Part III. — Eleventh Annual Report 



in May, therefore (151 and 167), are very probably just a year or thirteen 

 months old. In June 1884, an example was caught which measured 

 266 mm. Its age most probably is at least two years. The specimen got 











Month when 





Date of 

 Capture. 



No. of 

 Speci- 

 mens. 



Oi Lh s« 



oizes m 



\f i 1 1 i in fit VP'S 



Calculated Age. 



Spawning 

 may be sup- 

 posed to have 

 taken place. 



Locality. 



May 6, 1SS6 



3 



1:2 



1 day (known age) 



End of April 



Marine Lab., St Andrews. 









Eggs from Anstruther. 



10, 18SG 



A number 



125- 2 



1 or 2 days 



>> n 



I, ), >> >> 



i »> >i 

 July 21, 1SS7 



2 



2 25 



2 or 3 days 



,i i, 



May 



)) )) !> »1 



s.s. ' Garland,' S.E. Isle of 

 May 



1 



16 



About 2 months 



»i »> »» 

 *Aug. 30, 1886 



2 



187 





,, 



June 



,, ,, 22 fms. 



A number 



85-9 





,, >■ 



„ 31, 1S86 



1 



10 



ii q 



May 



„ 





I 



20 



Sand"Pool,'st Andrews. 



Dec. " 1884 



1 



76-5 



]] 7 



June 



Mar. 1888 



1 



76 



9 „ 



Rock Pool, ,, 



During last 













week of April 

 and first week 

 of May 1893 



} 



151 : 167 



„ 1 year, and 1 

 year+1 month 



April 



Moray Firth, s.s. 'Gar- 

 land.' 



Sept. 1885 



1 



187-5 



,, lyear+4months 



May 



St Andrews Bay. 



tJune 24, 1884 



1 



266 



,, 2years+lmonth 





Liner. 



Sept. 1884 



1 



278 



„ +4 months 





St Andrews Bay. 



t April (end of) 



1 



375 



,,+11 „ 





Trawler, Trawling Com- 



1884. 











mission. 



tJune 18S4 



1 



380 



,, 3 years 



June 



Liner. 



May 1884 



1 



398 



May 



Off St Abb's Head, Trawl- 











1 ing Commission. 



* M'Intosh and Prince. 



t Sizes given in Prof. M'Intosh's Notes. 



in September 1884, 278 mm. long, is probably at least two years and 

 three months old. A ling, 375 mm. long, was captured in April 1884, 

 which might be three years, but is more likely to be two years and eleven 

 months old. 



The Wolf-Fish. 

 {Annarrhichas lupus.) 



The wolf-fish probably spawns in December, January, February, and 

 March (M'Intosh). The eggs preserved at the Marine Laboratory, St 

 Andrews, were got on 17th, 18th, and 30th January 1886, 3rd February 

 1886, 24th and 30th March 1886. ' Hatching took place at the 

 1 Marine Laboratory, St Andrews, about eight days after collection. The 

 'embryos on emergence were about 11 or 12 mm. long ' (M'Intosh and 

 Prince). The eggs are demersal. The time of incubation is unknown, 

 but it probably extends over a considerable period. 



Xone of the wolf-fishes which were trawled had yolk-sacs. The 

 smallest of these was 17 mm. long. Of those which were hatched and 

 kept in the .tanks at St Andrews, none had completely absorbed their 

 yolk-sacs until the length of 23 mm. was reached. The young wolf- 

 fishes in the sea then seem to absorb their yolk-sacs sooner than those 

 bred in captivity. 



Owing to the want of specimens between the wolf-fish 24 mm. long, 

 and that 140 mm. long, it is difficult to fix the size of this form when 

 one year old. One specimen, 156 mm. long, was captured in July. 

 This example must be at least one year and four months if we suppose 

 that it was hatched in March. In February, two wolf-fishes which 

 measured 140 and 156 mm. were got off the Fife Coast. The specimen, 

 156 mm. long, may be fairly reckoned over one year. The wolf-fish, 



