28 LIVERPOOL BIOLOGICAL SOCIETY. 



depressum. This last species is usually found attached to 

 the surface of Laminar ia and other Algae at the bottom, 

 and Pseudocala7ius armatus has apparently only been 

 found in British seas before at considerable depths in the 

 Clyde estuary. Consequently their presence on the surface 

 is remarkable, and was, no doubt, caused by the attraction 

 of our powerful electric light. 



All the nets were, on this occasion, used in water 

 lighted up, the surface nets being in the 6,000 candle- 

 power glare, while the bottom nets were further from this 

 bright light, but had each their own smaller lamps. All 

 gave, so far as we yet know, practically similar results, 

 which are markedly different from both the bottom and 

 the surface gatherings taken at the same place during the 

 previous day. The electric light gatherings contain chiefly 

 Schizopoda, Cumacea and Amphipoda, and the Cumacea, 

 chiefly adult males of IpJmioe trispinosa, with their long 

 slender red bodies and active movements, are the most 

 marked feature; they are very abundant, and form a 

 conspicuous characteristic in the gathering whenever it is 

 transferred from a net into a glass jar. In none of the 

 daylight tow-nettings, either bottom or surface, I think, 

 was a single cumacean obtained, while every gathering on 

 the two nights when we had the electric light going 

 contained Cumacea in abundance. There can be little 

 doubt that those captured in the surface nets had been 

 attracted from the bottom by our brilliant deck lights, 

 which had been shining for fully half an hour before the 

 nets were put over. 



On the fifth day the ''Hyaena" started in the morning 

 from Port Erin, and arrived at Liverpool soon after 

 midnight. A little dredging and tow-netting was done on 

 the way. One good haul was obtained from a stony and 

 shelly bottom at about fifteen miles south-east of the 



