156 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
the moss, which to so large an extent now replaces the water, has, 
according to Mr. Lawson, been probed to the depth of seventeen 
feet without touching the rock. With a hand-net I made a 
careful investigation of all that was left of the loch; and sometime 
afterwards, when the gathering I had collected was examined, 
some fairly interesting results were obtained. It was found that 
Entomosiraca were moderately common in the gathering, though 
only four species were represented ; it was also found that the 
species obtained were equally divided between the Copepoda and 
the Cladocera, and, moreover, that the two Copepods represented 
two very different groups, viz., the Cyclopide and the Harpacticide. 
One of the Copepods was Cyclops bisetosus, Rehberg, a species 
that was added to the British fauna a few years ago by Mr. D. J. 
Scourfield, of Leytonstone, Essex, and has only recently been 
observed in Scotland. The other Copepod was Moraria Anderson- 
Smithi, T. and A. Scott, which was first noticed in Scotland in 
1892, in a gathering of shallow-water Entomostraca from Loch 
Morar, Inverness-shire. Our success in the examination of that 
loch was due, partly at least, to the active interest taken in our 
work by Mr. Anderson Smith, Ledaig, who was then a member 
of the Fishery Board for Scotland. Moraria Anderson-Smithi, 
T. and A. Scott, has, since its discovery in Loch Morar, been 
observed in several other places, and appears to be more or less 
generally distributed throughout Scotland—it was quite frequent 
in the gathering from the Garry Loch. The two species of 
Cladocera obtained in Garry Loch were Chydorus sphericus, 
Miiller, a common and widely-distributed species, and Alona 
rustica, T. Scott, which appears to be rare. Alona rustica was 
described in 1894 from specimens obtained in a collection of 
Entomostraca sent to me from Shetland, and has been observed 
in one or two other places since, but is always very scarce. 
Specimens of water mites, water beetles, and some other creatures 
were also noticed, and are included in the appended list, so far as 
they have been identified. 
If the Garry Loch could have been examined towards the end 
of summer, it is quite possible that other Entomostracan species 
might have been obtained in it, as we find that different seasons 
frequently give different results ; and also, if a thorough examina- 
tion of the debris at the foot of the cliffs and of the more 
