114 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Cod (July, Piel I.) Gammarus marinus,Spheroma 
serratum, Corophium grossupes. 
Cod (Sept., Morecambe) Gammarus marinus, Bathy- 
porera pilosa. 
Whiting (Aug., Morecambe) Idotea marina, Bathyporeia 
pilosa, Corophivum grossupes. 
Whiting (Aug., R. Dee) Diastylis rathker, Atylus 
swammerdamu. 
Whiting (Aug., R. Dee) Cuma scorproides, Diastylis 
rathket. 
Whiting (Sept., Morecambe) Bathyporeia pilosa (including 
B. pelagica and B. robert- 
som) ,Atylus swanvmerdan, 
Microprotopus maculatus. 
Whiting (Sept., Morecambe) Bathyporeia pilosa, Atylus 
swanmerdan. 
Whiting (Oct., Garston) Atylus swanmerdamit. 
Whiting (Oct., Morecambe) Corophium grossipes, Sphe- 
roma. serratum. 
Pogge (Oct., Morecambe) Pseudocuwma cercaria, Ponto- 
crates arenarius. 
Pogge (Oct., Rock Ch.) Atylus swammerdamu, and 
some young shrimps and 
prawns. 
Skate (Aug., R. Dee) Gastrosaccus spmnifer. 
Mr. Walker adds that it is remarkable that all these 
Crustacea are shallow water forms. Most if not all of 
the species inhabit a sandy bottom. One, Corophiwm 
grossipes, inhabits mud banks which are bare for hours 
every day and sometimes for two or three days together 
during neap tides in the Dee, where there are several 
square miles closely perforated with their holes. Itisa 
surprise also to find Diastylus rathkei occurring so fre- 
quently. The absence of two of the commonest species 
