The Ancient Lakes of Edinhurgh. 145 



Hailes Quakry. 



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 Eedhall, 

 many round black shining bodies occurred, probably the 

 cases of water mites — Acaridce. 



MOLLUSCA. 



Fisidmm fontinale (Draparnaud). A few whole valves 

 and some fragments. 



Planorhis glaber, Jeffreys. Several specimens. 



Limncea peregra (Mtiller). Eather scarce, and imperfect. 



Vertigo jpygmcea (Draparnaud). Imperfect. This has 

 very likely been "washed into the deposit from 

 the vicinity, as it is not unusual to find this 

 and other Yertis^os beside freshwater lochs. 



OSTRACODA. 



Candona Candida (Mtiller). Not common ; valves only. 

 Ilyocgpris gihha (HamdohT). Frequent; valves mostly. 

 Cytheridea torosa (Jones), var. teres. Not common. 



Eedhall 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 Eedhall it is also hoped will 

 induce research for Ostracoda in other lake peats, as, however 

 VOL. X. K 



