15 
Anglers. — Seven specimens measuring 15 to 2H inches, one 
giving 80 inches, were feeding upon weevers (in three instances), 
dabs (in one case), and the rest were empty. The majority of them 
were immature females. 
As on previous occasions, notes were made and in some cases 
specimens preserved of the abnormal or diseased fishes we obtained. 
Many of the flat fishes, particularly turbot, plaice, and flounders 
were procured more or less pigmented on the “ white ” or “ blind ” 
side. One dab was observed, likewise, thus pigmented in the region 
of the caudal fin, on and between the pectoral and pelvic fins, with 
an isolated small area on the lateral line, but there were no spots 
corresponding to those on the upper side. 
A 15 inch Lophius piscatorius , caught on 5th July, had a con- 
spicuous cystic tumour on the caudal tin, the cause of which was not 
apparent. Similar tumours were also observed on the tail of a 
flounder. The Angler is often seen to present, in the walls of the 
stomach, tumours containing Nematode worms. 
THE MATURE v. THE IMMATURE FISH. 
The following records give a complete account of all the fishes 
obtained at the first haul. Although in previous years a contrast 
was made, in so far as the fish obtained could bo compared with 
those returned to the sea, it did not clearlv indicate the sizes in the 
two classes. Nevertheless, so long as the fishing was fairly level in 
quality, the figures presented in previous reports give a pretty 
reliable proportion which will be interesting in relation to those 
which are now given. A comparison of the numbers given here 
with countings which were made to bring the results into line with 
those of previous seasons shows that the plaice retained were above 
11 to 12 inches long, the dabs above 8-9 inches long, flounders 
above 10-11 inches, gurnards above 9-10 inches, the soles and turbot 
were seldom small, and might be assumed on the whole to be 
mature or nearly so. Holt in his researches on maturity at Grimsby, 
gives 7 inches for the dab. I have not been able to confirm this 
vet, but if it be correct, then all dabs retained are certainlv mature. 
My figures for the other forms come pretty close to those which 
Holt has given, and may be used, for the present at least, in briefly 
discussing the tables. 
189-">. -Grimsby Trawl Fi-h<-ry ami other report* to the Marine liiologi' al A— ocintion. 
