376 Proceedings of the Royal Physical Society. 
females are bearing ovisacs, as the possession of these is 
usually an indication of maturity. 
I now propose, by way of conclusion to the present paper, 
to append a list of Scottish species of Cladocera that have not 
yet been observed in the district around Edinburgh, together 
with a note of a few of the localities where each has been 
obtained; such a list will be useful for comparison, and will 
indicate the blanks that have yet to be filled up, ere we 
have a complete list for the district. 
A Last oF ScoTTisH SPECIES OF CLADOCERA NOT YET 
OBSERVED IN THE DISTRICT AROUND EDINBURGH. 
Holopedium gibberum, Zaddach. This has been obtained in 
Loch Ness and in Loch Morar, Inverness-shire. (In 
Beith’s Dam, and in a reservoir behind the Cut, at 
Greenock—M. F. Dunlop, Greenock.) 
Daphnia Jardinii, Baird. Frequent in Loch Ness, Inverness- 
shire; and in Loch Tay, Perthshire. 
Bosmina longispina, Leydig. Loch Skene, Dumfriesshire 
(G. S. Brady) ; Stornoway, Lewis (A. M. Norman) ; Loch 
Balnagowan, Lismore Island, Argyleshire. 
Bosmina coregoni, Baird. Lochmaben Castle Loch, Dumfries- 
shire. This curious species forms a considerable part 
of the food of the vendace (Coregonus albula)—a rare 
British fresh-water fish found in Lochmaben Loch. 
Macrothrix laticornis (Jurine). This was obtained in Loch 
Morar (1892); also in North Shaws Loch, Selkirkshire 
(G. 5. Brady, 1867). 
Macrothriz rosea (Jurine). Lochmaben Loch, Dumfriesshire 
(Sir W. Jardine, Bart., and Mr W. Yarrell). 
Drepanothriz dentata, Euren. (D. hamata, Sars). Lochend 
Loch, Kirkeudbrightshire; and Loch Skene and Loch- 
maben Loch, Dumfriesshire (G. 8. Brady). 
Acantholeberis curvirostris (O. F. Miller). Found in a tarn 
in the island of Cumbrae, by Mr David Robertson. 
Camptocercus macrurus (O. F. Miller), This was obtained 
in Loch Morar, Inverness-shire; Loch Tay, Perthshire ; 
and Loch Scuban,:island.of Mull, Argyleshire; near 
