220 ANNALS OF SCOTTISH NATURAL HISTORY 



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 variants, 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 Harpactiddce may now 

 be mentioned. Canthocamptus minutus, Glaus, 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, 1 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. Moraria 

 anderson-smithi, 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. Marceno- 

 biotus vejdovskii, 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, 2 and afterwards in a shore gather- 

 ing from Loch Boon, 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 ; 3 

 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 Cypris (I use 



1 "Ann. Scot. Nat. Hist.," July 1895, p. 173, and Oct. 1895, P- 2 3 6 

 PI. IV. Figs. 14-20. 



2 "Ann. and Mng. Nat. Hist." (6), vol. xviii. p. 3, PI. I. Figs. 13-21, 

 PI. II. Fig. 23 (1896). 



3 " Journ. Lin. Soc." (Zoology), vol. xxvii. p. 99, PI. VI. Figs. 12-17 



