Sie 
Fresh- Water Entomostraca from Island of Mull. 329 
Chydorus globosus, Baird. : 
There are very few Scottish records for this fine species, 
and they are all from the west side; the localities to which 
these records refer are Paisley Gaal (Robertson and ‘T. 
Scott); The Hebrides (Rev. A. M. Plonman): ; Lismore Island, 
Argyllshire (T. Scott). 
Bythotrephes longimanus, Leydig. 
This curious Crustacean, with its enormously long post- 
abdominal spine, would seem to be widely, if not generally, 
distributed in Scotland. I have obtained it in Loch Leven, 
Kinross-shire, and in Loch Ness and Loch Morar, Inverness- 
shire. Its occurrence in the Mull lochs is a further extension 
of its distribution on the West Coast. 
