spray in transporting saline matter is well known, to the discomfort 

 of the inhabitants of the cottages along the shore, the salt obscuring 

 their windows after every storm. 



All the gatherings were purposely taken for comparison on the 

 same day, 15th October, 1878, so that they should all be alike so 

 far as regards weather conditions and season of the year. Seeing 

 that the same species are often found widely apart, there can be no 

 doubt that there are ample means of transport to distant localities 

 afforded to these minute organisms — much more, we should think, 

 to those of closer proximity. It appears that some other condi- 

 tion than the saline element is necessary for the presence of one 

 of our most characteristic brackish-water species — viz., Cypridop)sis 

 aeuleata — as only in three of these ponds do we find it. Cypris 

 salina, another characteristic brackish-water species, has not been 

 found here, but is met with in other similarly situated ponds on the 

 island. Among the above-mentioned sub-brackish pools we find the 

 following undoubted fresh-water species : — 



Cypris compressa, in 9 of the 

 „ granulosa, sp. nov, in 1 



ponds, more or less common. 



of the ponds, moderately common. 



the ponds, more or less common. 



more or less common. 



exceedingly abundant. 



moderately common. 



rare. 



moderately rare. 



more or less common. 



moderately rare. 



moderately rare. 



moderately common. 



moderately common. 



moderately rare. 



moderately common. 



rare. 



Others might be added from other brackish localities — amongst them 

 Cypridopsis vidua, Cypris fusca, and Cypris reptans. From the 

 circumstance that these species are uniformly inhabitants of inland 

 fresh water, although occasionally found in brackish water, we 

 cannot call them "brackish" species, and scarcely even "sub- 



