PLATE IX 



Enteromorpha Pool. 



Pool above high-water mark at Millport, Cumbrae, fed by sea-spray and by rain. 

 It contains an interesting transitional fauna, which at the time it was examined in- 

 cluded Littorina rudis, Carcinus moenas, J sera marina, Gammarus locusta, Procerodes ulvx, 

 brackish -water Copepods of the genera Euryteinora, Diaptomus and Harpacticus, the 

 Ostracod Cythere, and the common stickleback (var. trachypterus). 



