DAE Na LIVERPOOL BIOLOGICAL SOCIETY. 
were only recognizable by the peculiar skull-shaped head 
and the sparse hairiness of the lower antenne. A female, 
with eggs, from Bull Bay, had a large tubercle on the first 
segment. Mayer (/.c.) shows that perfectly smooth forms 
are not uncommon, but that it is on this segment that a 
spine or tubercle is most often developed. 
In conclusion, I have to tender my hearty thanks to the 
Rev. T. R. R. Stebbing and the Rev. Canon Norman, for 
their kind assistance, and especially to the former, for 
the gift of his magnificent work on the ‘‘Challenger”’ 
Amphipoda. The bibliography alone of this work is a 
perfect monument of patient work, and, consisting as it 
does of a resumé of all that has been written on the entire 
subject, accompanied by the author's comments, is a 
complete library in itself. It is no exaggeration to say 
that it will be indispensable to every student of the 
Amphipoda. 
