THE FRESH-WATER LOCHS OF SCOTLAND. 



435 



Summary of the Number of Species. 



Species. 

 Mollusca ... ... ... ... 5 



Hydrachnida ... ... ... 1 



Tardigrada 22 



Insects 



Crustacea 



Rotifera 



Gastrotricha ... 



Worms 



Ccelenterata ... 



Infusoria 



Sarcodina 



Mastigophora 



6 



55 



151 



2 

 12 



2 

 11 

 67 



Dinoflagellata 



Phanerogamia 



Equisetacete ... 



Lycopodiaceae 



Characese 



Mosses 



Hepatics 



Floridea? 



Chlorophyceae 



Myxophyceae (Report in prepara 



tion) 

 Bacillariaceae... 



Species. 

 3 



. 33 

 1 

 1 

 2 



2 

 2 



46 



20 



We have thus a total of 453 species recorded for Loch Ness, excluding 

 all Vertebrata, blue-green Algae, and some other groups on which no 

 work has been done. The Hydrachnida, Insecta, Worms, Infusoria, 

 Chlorophyceae, and Diatoms have all been insufficiently studied, and 

 the lists could be easily increased. 



PRINTED BY O. CORNWALL AND SONS, ABERDEEN AND LONDON. 



