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Part III. — Seventeenth Annual Report 



Diaptomus gracilis, though scarce in the gatherings collected with the 

 coarse net, were usually frequent in those collected with the fine net. 

 Diaptomus, Bosmina, and Daphnia were the only species that occurred 

 in all the four gatherings. Cyclops viridis and albidus, and Eurycercus 

 and Alonopsis, were probably captured by the net passing over some 

 shallow water or amongst aquatic plants. With the exception of 

 Diaptomus, and on one occasion of Cyclops strenuus, all the species named 

 in the list were more numerously represented in the gatherings collected 

 with the coarser tow-net, and some were only captured with that net. A 

 few male Daphnicr were observed in the gathering collected in September. 



SJiore and Bottom Invertebrates captured mostly by Hand-Net. 



The following list contains the names of the species collected chiefly 

 with the hand-net, and a few that were obtained by dragging the tow-net 

 for a short distance over the bottom of the loch; those captured by the 

 tow-net are indicated by an asterisk. 



[Tablfj, 



