PODOCERIDES. 
417 
This genus appears to have a large geographical range ; 
the species having been found both in the Arctic and 
Antarctic Seas, as well as in the tropical regions, that is, 
if Amphithoe Azteca of Saussure belongs to this genus, 
which, however, from the description, appears to be 
rather doubtful. One species is recorded by Professor 
Say from the freshwater marshes of South Carolina, but 
his description is not sufficiently perspicuous for us to 
determine whether his Amphithoe dentata really belongs 
to this genus or not. 
The accompanying vignette of Tynemouth was kindly 
drawn for us by Miss Hancock, of Newcastle. 
E E 
