Limnza, 
Bruguieére. 
162 Proceedings of the Royal Physical Society. 
previously recorded-as a fossil for Scotland, and its occurrence 
in the Elie Ancient Lake deposit is interesting, as it indicates 
that the species has been a native of Scotland for a consider- 
able period. 
This Physa is only known to occur, as yet, in four counties 
—one of the localities being Dunbar, where it is found in 
large numbers in the old bleachfield, a short distance west 
from the Castle. 
Limnea peregra (Miiller). 
Buccinwm peregrum, Miill., Verm. Hist., pt. ii., p. 130. 
Limneus pereger, F. and H., vol. iv., p. 168, pl. exxiii., figs. 3, 7. 
Limneea peregra, Jeff., op. cit., vol. i., p. 104; vol. v., pl. vii. (suppl.), 
fig. 3 
“A 5s Roebuck, op. cit., p. 489. 
We have observed this species in two of the deposits 
described here, viz., Bank Street and High Street. It was 
obtained in almost all the deposits described in the previous 
papers on the Ancient Lakes. 
As a living species, Limneea peregra is wey distributed 
throughout the counties of Scotland. 
Limnea truncatula (Miiller). 
Buccinum truncatulum, Miill., Verm. Hist., pt. ii., p. 130. 
Limneus truncatulus, F. and H., vol. iv., p. 177, pl. exxiv., fig. 3. 
Limnea truncatula, Jeff., op. cit., vol. i., p. 115; vol. v., pl. vil 
(suppl. ), fig. 7. 
is a Roebuck, op. cit., p. 492. 
This species occurred in all the four deposits referred to in 
these notes. It appears to have been observed in only one 
of the deposits described in the paper on “The Ancient 
Lakes of Edinburgh.” 
In its living state, the distribution of this species is almost 
as extensive as the last, and is recorded from twenty-five | 
counties in the “Census.” Limnea truncatula is almost 
amphibious, and we have more frequently found it in slightly 
damp places, than in lochs or ponds; we have also 
occasionally found Pisidia under similar conditions. 
