ANNALS OF SCOTTISH NATURAL HISTORY 220 
these three species of Cyclops, and especially the last two, are rare in 
the lochs of Scotland, and have not previously been recorded from 
Aberdeenshire. Cyclops varicans, G. O. Sars, which also appears to 
be a rare species in Scotland, has been observed in two of the 
gatherings collected recently, viz. in one from Loch of Skene and 
in another from Loch of Park. Cyclops phaleratus (Koch) was 
obtained in Loch of Skene and in Loch of Park; this species was 
also obtained many years ago, in a canal at Peterhead, by the late 
Dr. Robertson of Millport. 
The following species belonging to the MHarpactiide may now 
be mentioned. Canthocamptus minutus, Claus, occurred in gather- 
ings from Loch of Skene, Corby Loch, and Bishop Loch. It is 
readily distinguished by the peculiar form of the caudal furca, 
and by the bifid spines that fringe the anal operculum ; the species, 
though added to the British fauna only within recent years,’ seems 
to be widely distributed. Canthocamptus inornatus, T. Scott, was 
obtained in a gathering from Bishop Loch, in which it did not 
appear to be very rare; the species was described a few years ago 
from specimens gathered in Rescobie Loch, Forfarshire. Joraria 
anderson-smitht, T. and A. Scott, was also obtained in Bishop 
Loch ; this species, though not previously recorded from Aberdeen- 
shire, is widely distributed in Scotland and England. Mareno- 
biotus vejdovskiz, Mrazek, which occurred in the gathering from 
Loch of Park, a locality that has also yielded not a few rare species 
of Cyclops, is, like most of the other Harpactids, a shore dweller. 
It was first observed in Scotland in a gathering collected on the 
north shore of Loch Vennachar,? and afterwards in a shore gather- 
ing from Loch Doon, Ayrshire. This is now the third Scottish 
Loch in which the species has been observed. Mrazek obtained 
the species in Bohemia, and Mr. Bruce (of the Jackson-Harmsworth 
Expedition) collected it in fresh-water ponds in Franz Josef Land ;* 
this seems to indicate that the species may have even a wider dis- 
tribution than that now known to us. 
The total number of entomostracan species obtained 
in the Aberdeenshire lochs recently examined reaches to 
over sixty; and, from the favourable appearance of the 
lochs already visited, there can be little doubt that this 
- number will be largely increased. What at present appears 
somewhat noteworthy is the small number of the Ostracoda 
that have yet been observed. No species of Cypgris (I use 
1 «Ann, Scot. Nat. Hist.,” July 1895, p. 173, and Oct. 1895, p. 236, 
Pl. IV. Figs. 14-20. 
4 <oAnn: ance Vacs Nat bist.’ (6), vol. xvi. p. 3,-F1..1. Migs. 13-21, 
Pl. II. Fig. 23 (1896). 
3 «Journ. Lin. Soc.” (Zoology), vol. xxvii. p. 99, Pl. VI. Figs. 12-17 (1899). 
