ENTOMOSTKACA NEW TO THE FAUNA OF ORKNEY. 91 



NOTES ON SOME FRESH-WATER, BRACKTSH- 

 WATRR, AND MARINE ENTOMOSTRACA 

 NEW TO THE FAUNA OF ORKNEY. 



BY THOMAS SCOTT, F.L.S., 



NATURALIST TO THK KISHKRY BOARD FOR SCOTLAND. 



[Keatl 29tli October, 1889.] 



During July of the present year (1889), I was en- 

 gaged carrying- out some investigations among the 

 Orkney Islands, on behalf of the Scientific Committee 

 of the Fishery Board for Scotland, and took the 

 opportunity while there to collect, by hand-net and 

 dredge, a quantity' of fresh-water and marine 

 organisms, including a number of Entomostraca. 

 I now propose, in the following notes, to refer to a 

 few species of Ostracoda obtained in this way which 

 do not appear to have been previously recorded from 

 these islands. 



1. Fresh-water and Brackish-water Species. 



I was able on only one occasion to make a pass- 

 ing examination of the Fresh- and Brackisli-water 

 Entomostracan fauna, viz., on the Saturday evening 

 previous to our departure for the Firth of Forth. 

 We had anchored near Stromness, and about 5.30 p.m. 

 I went ashore, taking witli me one of our smaller 

 tow-nets, my intention being to visit the famous 

 "Standing Stones of Stenness" said to be distant 

 from Stromness about six miles, and to take a look 

 at the flora of the district and try a dip with the 

 tow-net in iiuy suitable ditch or other fresh-water 



