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Part III. — Twelfth Annual Report 



breadth. Several streams, including the Loanan from Loch Awe, flow 

 into it, and the River Inver, which, after a run of about 6 miles, falls 

 into the sea at Loch Inver, flows out of it. Loch Assynt contains salmon, 

 sea trout, common trout, and Salmo ferox — -a variety of Salmo fario. 

 No tow-net gatherings nor samples of acquatic plants were sent from 

 this loch, but judging from the number and excellence of the fish con- 

 tained in the loch its invertebrate fauna must be abundant, an investiga- 

 tion of which might be expected to yield interesting results. Twelve 

 stomachs of trout from this loch were examined and were found to 

 contain numerous insect and crustacean remains as shown by the following 

 tabulated statement of the results of the examination. 



Table showing the results of the examination of twelve stomachs of 

 trout from Loch Assynt : — 



No. of 

 stomach. 



4 



5 



6 



7 



8 



9 



10 



11 



12 



} 



Contents of stomach. 



Kemains of larva} and larvae-cases of ' Caddis-flies.' 



Several specimens of Valvata piscinalis (a fresh- water mollusc). 



Remains of Limncea peregra, Gammarus, and larvae-cases of 



Caddis-flies. 

 Remains of insects — species doubtful. 

 Limncea peregra, Gammarus, remains of insects. 

 The same as 5. 



Valvata piscinalis, elytra and other parts of beetles (Goleoptera). 

 Valvata piscinalis, and remains of insects. 

 Several Limncea peregra, and larvae-cases of ' Caddis-flies.' 

 One Limncea peregra, remains of Gammarus, and ' Caddis-flies.' 

 Two Limncea peregra. 

 Remains of Gammarus, and larvae and larvae-cases of ' Caddis-flies.' 



