368 Proceedings of the Royal Physical Society. 
Genus Alonopsis, G. O. Sars. 
Alonopsis elongata, G. O. Sars. 
1862. Alonopsis elongata, G. O. Sars, Om. de i Omeg. af Christi. 
forekom. Clad., Andet Bidrag., p. 41. 
1867. Lynceus elongatus, Norman and Brady, Mon. of the Brit. 
Entom., p. 376, pl. xviii., fig. 1; pl. xxi., fig. 2. 
1884, Alonopsis elongata, Herrick, Crust. of Minnesota, p. 85. 
The only locality within the district for which I have a 
record of this species is Loch Leven, but I think it will yet 
be obtained in other fresh-water localities around Edinburgh, 
because it is by no means a rare Cladoceran. I have 
Alonopsis from several places beyond the prescribed area—as 
Loch Tay, Perthshire; Loch Mullach Corrie, Sutherland- 
shire; Loch Scuban, island of Mull, ete. 
Genus Leydigia, Kurz. 
Leydigia quadrangularis (Leydig). 
1860. Lynceus guadrangularis, Leydig, Naturges. der Daphn., p. 221, 
pl. viii., fig. 59. 
? Leydigia quadrangularis, Kurz, Dodekas Neuer Cladoceren. 
1891. Leydigia quadrangularis, T. Scott, Ninth Ann. Report, p. iii., 
p. 292, pl. ii., figs. 5 a, 6. 
I recorded this species in the Ninth Annual Report of the 
Fishery Board for Scotland (1891), as having been obtained 
in Lochgelly Loch, Fifeshire, and it has occurred nowhere 
else within the district. Last year Mr James Steel, Glasgow, 
presented me with some material he had collected in a small 
loch near Rutherglen, Lanarkshire; there were several 
interesting things in this material, and one of them was 
Leydigia quadrangularis. I do not know of any other 
Scottish record for this species. 
Genus Graptoleberis, G. O. Sars. 
Graptoleberis testudinarius (Fischer). : 
1851. Lynceus testudinarius, Fischer, Mem. des Sav. étrangers, St 
Petersbourg, vol. vi., p. 191, pl. ix., figs. 3-6. 
1862. Graptoleberis testudinarius, G. O. Sars, op. cit., p. 41. 
I obtained this curious little species in Lochend Loch, 
