The Ancient Lakes of Edinburgh. 145 
HAILES QUARRY. 
The Mollusca and Ostracoda from this place were found 
in silt and not in marl, and were tolerably well preserved. 
In some parts of the bed a solid peaty mud has recently 
been found (1889), in which occur innumerable chitinous 
scales which are provisionally referred to Daphnia, also 
many small brown discs which are supposed to be the 
statoblasts or winter eggs of freshwater polyzoa. In the 
solid peaty mud of Hailes, as well as in that of Redhall, 
many round black shining bodies occurred, probably the 
cases of water mites—Acaride. 
MOLLUSCA. 
Pisidium fontinale (Draparnaud). A few whole valves 
and some fragments. 
Planorbis glaber, Jeffreys. Several specimens. 
Limnea peregra (Miller). Rather scarce, and imperfect. 
Vertigo pygmea (Draparnaud). Imperfect. This has 
very likely been washed into the deposit from 
the vicinity, as it is not unusual to find this 
aud other Vertigos beside freshwater lochs. 
OSTRACODA. 
Candona candida (Miller). Not common; valves only. 
Llyocypris gibba (Ramdohr). Frequent; valves mostly. 
Cytheridea torosa (Jones), var. teres. Not common. 
REDHALL QUARRY. 
The Ostracoda were found in the solid peat mud from 
the upper layer of peat by the improved methods of washing 
recently adopted, and the number of each species is com- 
paratively small at present, but it is expected that the 
continuation of these researches will yield an increased 
number of species as well as individuals. This record of 
their occurrence in peat at Redhall it is also hoped will 
induce research for Ostracoda in other lake peats, as, however 
VOL. X. K 
