The Raised Sea-Bottom of Fillyside. 239 
Family Buccrnipé. 
Purpura lapillus (Linne). Purpura, 
Bruguiere. 
Buccinum lapilius, Linn., Syst. Nat., 1202. _ 
Purpura lapillus, F, and H., vol. iii., p. 380, pl. cii., figs. 1-3. 
ss i Jeff., Joc. cit., vol. iv., p. 276; vol. v., pl. lxxxii., 
fig. 1. 
Rather rare. This is a species which appears to occur as 
fossil in the Red Crag and every subsequent deposit, includ- 
ing Moel Tryfaen, but is by no means common except in 
raised beaches. 
As a living species it is common everywhere. 
Family Moricip&. 
Murex erinaceus, Linne. Murex, 
Linne. 
Murex erinaceus, Linn., Syst. Nat., p. 1216. 
- wf F, and H., vol. iii., p. 370, pl. cii., fig. 4. 
i - Jeff., Zoc. cit., vol. iv., p. 306; vol. v., pl. Ixxxiv., 
fig. 1. 
Rare. As a fossil this species appears to have as wide a 
range in geological times as the last, having been obtained 
in the Quaternary deposit at Strethill, Kelsey Hill, etc., and 
in the Clyde bed, as well as on the Continent, in the Italian 
Tertiaries. 
In its living condition, this species is found on the southern 
and western coasts of England and Scotland; off the coasts 
of Northumberland and Durham, and in Berwick Bay, etc. 
Family Nassip&. 
Nassa reticulata (Linne). Nassa, 
Lamarck, 
Buceinum reticulatum, Linn., Syst. Nat., p. 1204, 
Nassa reticulata, ¥. and H., vol. iii., p. 388, pl. cviii., figs. 1 and 2. 
5 i Jeff., loc. cit., vol. iv., p. 346; vol. v., pl. lxxxvii., 
fig. 8. 
Rare. 
