288 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



The larger fish were therefore 27*3 per cent, of the 

 total quantity caught. 



The largest dab caught was 15J inches. 



The largest flounder caught was 17J inches. 

 Both were unusually large fishes. 



A turbot was also taken which measured 3(H inches 

 and weighed 20 lbs. 



Dabs and Plaice. 



Except in the single haul with the shrimp net com- 

 paratively few dabs were caught. The ratio of dabs to 

 plaice was 1 : 2'5. 



The usual Physical Observations were 

 taken. These were : — 



Wind : N.W., light to fresh. 



Weather : Kainy and dull at first, fine later. 



Sea Temperature : 10-1° C. to 11-8° C. 



Air Temperature: 46° F. to 55° F. 



Specific gravity of the sea water at the surface : 1026*3 

 to 1026*4. 



Transparency of the sea water : 16 to 18 ft. 



Invertebrates taken in the nets. 



Simple and compound Ascidians (very numerous). 



Mollusca: — Mactra stultorum, Pecten operctdaris, 

 Modiolus, Eolis sp., Loligo media (common), /,. vulgaris (7 

 specimens), Buccinum, Fusus and Cyprina (dead shells). 



Cristacka : Pandalus annulicomis, Crangon vulgaris, 

 Cancer pagurus, Carcinus moenas, Portanas holsatus, P.pvber t 

 Stenorhynchus longirostris, Porcellana longicornis, Eupagurus 

 bernhardus, Homams vulgaris, Hyas araneus. 



Polyzoa: — Flustra was taken and other encrustin 

 forms were observed but not identified. 



EcHiNODE&HATA ' — Solaster })ap])osus } Ophiura spp., 



