of the Fishery Board for Scotland. 



187 



Loch of Clickimin (near Lerwick). 



Comparatively few organisms were obtained in the gathering from this 

 loch. Probably the lateness of the season when the gathering was 

 collected may partly account for the scarcity of animal life. Be that as 

 it may, it is nevertheless interesting to find that, though the sea apparently 

 has access to Loch of Clickimin, yet Diaptomus serricornis, Daphnia 

 longispina, and other more or less typical fresh-water Crustacea were 

 obtained in the gathering from this loch. 



CRUSTACEA. 



COPEPODA. 



Diaptomus serricornis, Lillj. Cyclops serrulatus, Fischer. 



Attheyella crassa (G. 0. Sars). 



Cladocera. 



Bosmina longirostris (Muller). Acroperus harpce, Baird. 



Daphnia longispina, Muller. Alona quadrangular is (Muller). 



Chydorus sph&ricus. 



North Loch (near Loch of Clickimin). 



The North Loch, though but a short distance from that just described, 

 contained a more numerous and varied fauna, the number of Crustacea 

 obtained amounted to at least thirteen species. No Mollusca were 

 observed. 



CRUSTACEA. 

 Copepoda. 



Diaptomus serricornis, Lillj. Cyclops strenuus, Fischer. 



Cyclops viridis (Jurine). Cyclops serrulatus, Fischer. 



OSTRACODA. 

 Gypria ophthalmica (Juriue). 



Cladocera. 



Bosmina longirostris (Muller). Alonopsis clongatus, G. O. Sars. 



Ceriodaphnia quadrangula (Midler). Alona quadrangular is (Muller). 

 Daphnia longispina Muller. Chydorus sphcericus (Miiller). 



Euryccrcus lamellatas (Miiller). Chydorus (?) ovalis, Kurz. 



The following Table gives a general view of the distribution of all the 

 species from the various lochs : — 



