286 Part III. — Ninth Annual Report 



COPEPODA. 



Cyclops viridis, Jurine. Loch Hempriggs, frequent. 



,, serrulatus, Fischer. Loch Hempriggs, frequent. 



,, crassicornis, 0. F. Miiller. Loch Hempriggs, not common. 

 Canthocamptus, sp. Loch Hempriggs. 



OSTRACODA. 



Cypria serena (Koch). Loch Hempriggs, Loch Wester, side of Wick River. 



,, Icevis (0. F. Miiller). The same localities as the last. 



,, ophthalmica (Jurine). With the previous two species frequent. 



,, exsculpta (S. Fischer). Loch Hempriggs, scarce. 

 Cypris fuscata (Jurine). Loch Hempriggs, rare. 

 Cypris wrens (Jurine). Side of Wick River, frequent. 



,, prasina, Fischer. With the last common. 

 Erpetocypris reptans (Baird). Inch Hempriggs and Loch Wester, frequent. 



,, tumefacta (B. and R.;. Loch Hempriggs, frequent. 

 Cypridopsis vidua (Miiller). Loch Wester, frequent. 



,, aculeata (Lilljeborg). Loch Hempriggs, Loch Wester, side of Wick 

 River. 



,, villosa (Jurine). Loch Hempriggs, frequent. 

 Potamocypris fulva, Brady. Loch Hempriggs, Loch Wester. 

 Candona Candida (Miiller). Loch Hempriggs, Loch Wester, side of Wick River. 



,, lactea, Baird. With the last, but not so common. 



,, pubescens (Koch). Also with the last. 



,, kingsleii, B. and R. Loch Hempriggs, Wick River. 



,, acuminata (Fischer). Loch Wester, rare. 

 Ilyocypris gibba (Ramdohr). Loch Hempriggs, Loch Wester. 

 Limnicythere inopinata (Baird). Loch Hempriggs, Loch Wester, side of Wick 



River. 

 Cythere pellucida (Baird). Wick River, not common. 



Cladocera. 



Lynceus elongatus. Loch Hempriggs. 

 ,, excisa. Loch Hempriggs. 



Loch of Stenness, Orkney. 



" Loch Stenness is a great sheet of water about 15 miles in circumference, 

 including its upper and lower divisions. The name is sometimes applied 

 to designate both the divisions of the loch, and sometimes it is applied 

 only to the lower loch which communicates with the sea; while the upper 

 loch, which is entirely fresh, is termed the Loch of Harray. The banks 

 of these lakes, like all the Orcadian lakes, are bare and treeless ; and the 

 upper loch is divided from the lower by two long narrow promotories that 

 jut out from opposite sides, and so nearly meet in the middle as to be 

 connected by a low bridge, called the Bridge of Bogar, over which the 

 roadway passes. The area of the Loch of Stenness is 1792 acres, and that of 



the Loch of Harray 2432 acres; or, together, 4224 acres The 



former is nearly 4 miles long, with a maximum breadth of 1^ mile ; while 

 the latter is 4| miles long, and varying in breadth from 3 furlongs to 1 J 

 mile."* 



Loch Stenness (proper). 



I made an examination of this loch by means of a small sailing-boat — 

 (the weather was too stormy to attempt rowing) — on the 27th September 

 1890. The loch was tow-netted from above the Bridge of Wraith to near 



L o v 



* Mr .A. Young, Inspector of the Scottish Salmon Fisheries, in Fifth Annual 

 Report of the Fishery Board for Scotland, pp. 366-371 (1887). 



