5 
Eocene sands and >clays of the district; the crag 
fossils I am inclined to think were an accidental 
inter-mixture, and not from this deposit at all. 
Dr. H. Woodward, Catal. Brit. Foss Crustacea, Brit. Mus., 
1877, gives it from the Lower Tertiaries, Grove Ferry, as 
described by Sowerby, Gen. Shells, 1823. Darwin does not 
mention it in his monograph 1855. Unless further examples 
are obtained, this species must remain with some suspicion as 
to its value. 
Balanus concams, Brown, Coralline to Middle Bed Crag, 
and the Arctic deposits of Bridlington and Aber¬ 
deenshire. Worden, Lane. 
., crenatus , Brug. This is one of the commonest of the 
group ranging from the Coralline Crag to recent 
deposits, especially in Scotland. Portrush. 
„ dolosus, Darw. Pliocene deposits only, Middle Crag 
to Weybourne sands. 
,, Hamer i, Asc. Middle and Upper Crags, Weybourne 
sands, and the Arctic clays of Bridlington, Isle of 
Man, Loch Gilp, Garvel Park and other Scotch 
glacial deposits. Kill-o-grange, Ireland. Kelsey Hill. 
The Scotch and Manx examples have not been 
certainly identified as this species Forbes calls it 
B. uddevallensis. 
,, inclusasy Darw. Lower and Middle Crags. The species 
is rare and little known. 
„ porcatus, Da Costa. Middle Crag, to Chillesford, 
Bridlington Selsey, Arctic clays of Fife, to recent 
deposits, most plentiful in the Western Scotch later 
beds; raised beach Balbriggan Bay and Portrush. 
Isle of Man. Kelsey Hill. 
„ Sauntonensis , Parfitt. This species described as from 
a raised beach at Saunton, in Devonshire, is probably 
only a variety of the common crenatus. 
„ spongicula , Brown, has only been met with in the 
Coralline Crag. 
,, tintinnabulum , L. Not uncommon in the different 
Crags. At Bamsholt, Suffolk, it occurs in clusters 
with the opercula in situ , and is said to have been 
found at Bute in the glacial clays. 
