160 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Metridia long a is decidedly rare in our district. It is a 

 distinctly northern species, having been reported from the 

 Arctic Sea, Greenland, Spitzbergen, Scotland, and as far 

 south as the English Channel, and about the Channel 

 Islands. I have lately found it very plentiful in plankton 

 collected about Valencia, on the "West of Ireland, and it 

 was frequently present in the collections taken by Prof. 

 Herdrnan in his traverse of the North Atlantic. 



The finding of several fine specimens of Candace pec- 

 tinata, for the first time in our district, is notable. This 

 species was first found by Drs. Brady and Eobertson, at a 

 depth of 40 fathoms, off the Scilly Islands. I have on 

 several occasions found it about the west coast of Scot- 

 land, and Mr. Thomas Scott reports it from the Frith of 

 Forth. I found it very sparingly off the Channel Islands, 

 and fairly plentiful about Valencia, Ireland. It thus 

 appears to be probably generally distributed round the 

 British Isles, and both at surface and sea bottom. Dr. 

 Brady reports the "Challenger" captures of this species 

 about Australia, the Phillipine Islands, and between 

 Ascension and the Azores. I found it common about the 

 Canary Islands. It and the other members of the genus 

 Candace are at once distinguishable by the dark-coloured 

 antenna?, spines, and plumes, and the terminal spines and 

 the swimming feet. 



The surface Diatoinacese were very numerous, while the 

 very few found in the lower net were probably taken 

 in as it neared the surface. Mr. Thomas Comber, F.L.S., 

 to whom I sent the surface Diatoms for examination, has 

 kindly drawn up the following list of 18 species found, 

 viz. : — 



Diatoms — 



Biddulphia mobiliensis, common. 

 Coscinodiscus concinnus, common. 



