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Fresh-Water Entomostraca from Island of Mull. 325 
Diaptomus gracilis, G. O. Sars. 
Cyclops viridis (Jurine). 
Cyclops serrulatus, Fischer. 
Bosmina longirostris (Miiller). 
Alona quadrangularis (Miiller). 
Acroperus harpe, Baird. 
The surface tow-net gathering of 4th of July contained a 
large number of Entomostraca, especially of Cladocera. The 
following are the species then obtained :— 
Diaptomus gracilis, G. O. Sars. 
Cyclops viridis (Jurine). 
Cyclops serrulatus, Fischer. 
Sida crystallina (Miller). 
Daphnella brachyura (Liévin). 
Ceriodaphnia reticulata (Jurine). 
Bosmina longirostris (Miiller). 
Eurycercus lamellatus (Miiller). 
Chydorus globosus, Baird. 
Polyphemus pediculus (Linné). 
Bythotrephes longimanus, Leydig. 
In the under-surface tow-net gathering, collected on the 
same date as the last, the following species were obtained :— 
Diaptomus gracilis, G. O. Sars. 
Daphnella brachyura (Liévin). 
Bosmina longirostris (Miller). 
Acroperus harpe, Baird. 
_ Polyphemus pediculus (Linné). 
Bythotrephes longimanus, Leydig. 
7. Loco SQuaBAIN (or SCUBAN). 
Loch Squabain, as already described, is the northernmost 
of the group of small lochs near the source of the river 
Lussa, and was visited on the 19th of March, and again on 
the 4th of July 1890. On the former date a shore gathering 
was collected, and on the latter visit a surface and an under- 
surface gathering were got. Six species were obtained in 
the shore gathering, the names of which are as follow :— 
