: Fresh- Water Entomostraca from Island of Mull. 323 
Ze OCH -UiISG. 
Loch Uisg is a little over one and a half miles in length, 
by about a quarter of a mile in breadth. It is situated almost 
midway between the south-west end of Loch Spelve and the 
head of Loch Buy, in a narrow valley that extends between 
these two sea-lochs.. The material from Loch Uisg consisted 
of a tow-net gathering from a depth of four fathoms, collected 
on the 26th February 1890. The only Entomostraca obtained 
in this gathering were a few specimens of 
Diaptomus gracilis, G. O. Sars. 
oo SHEEP LOCH: 
The “Sheep Loch” is probably a small loch or tarn in the 
neighbourhood of Loch Uisg. (On the hills towards the 
west end of Loch Uisg, and about half a mile to the south of 
it, there is a small lochan called ‘‘Lochan nan Caorach,” or 
(2) the Loch of the Sheep.) The material from the “Sheep 
Loch” was collected on the same date as the other two, and 
consisted of a shore gathering. Entomostraca, though com- 
paratively scarce, were more numerous and better represented 
than in the two previously described; they comprised the 
following species :— ) 
Diaptomus gracilis, G. O. Sars, 
Cyclops serrulatus, Fischer. 
Bosmina longirosiris (Miller), 
4, THE “ AMERICAN LOCH.” 
This loch is also probably situated in the vicinity of Loch 
Uisg. The material from it was collected on the same date 
as that from Loch Uisg, and consisted of a shore gathering, 
Three species of fresh-water Entomostraca were obtained, 
and are as follow :—_ 
Diaptomus gracilis, G. O. Sars. 
Cyclops strenuus, Fischer. 
Bosmina longirostris (Miller), 
A specimen of Scutellidiwm viride, a littoral marine species, 
was obtained in this material, but it had probably been 
accidentally introduced. 
