174 SUPPLEMENT TO THE CRAG MOLLUSOCA. 
Mr. Sowerby, when originally describing /. Lamberti in 1816, spoke of some recent 
shells which he had seen (five in number) that resembled the fossil; and the Crag shell 
was treated by Sir Charles Lyell, in one of his early works, as belonging to a living 
species, on the authority of M. Deshayes. The question was fully examined by Mr. 
Charlesworth in the ‘Magazine of Nat. Hist” for 1837, pp. 37 and 90, and a figure is 
there given by him of a specimen of Lamberti on parts of which the spiral strize (sharply 
cut) to which [ have referred are preserved. In most of the Crag specimens these strize 
have been removed, but on a small one from the Coralline\Crag in the collection presented 
by me to the British Museum they are present. 
ConumBrtta Borson1? Bellardi. ‘Addendum, Plate, fig. 19. 
CotumBetza Borsent, Bellardi. Monog. Columb. Foss., p. 14, t.1, fig. 41. 
— -— A, Bell. English Crags, Proc. Geol. Association, 1872, p. 24. 
Locality. Red Crag, Walton Naze. 
The specimen figured above, being that upon which this species was introduced into 
the Crag fauna, has been kindly sent to me by Mr. R. Bell. It appears'to me more to 
resemble the figure of C. subulata (Murewx subulatus, Broc.), but I have not the fossils 
from Piedmont for comparison. It seems to differ from C. sw/cata (the common species 
at Walton) in being more subulate with less convex volutions, in being quite smooth, and 
in having a more distinct canal. It somewhat resembles the young state of C. sulcata 
(‘Crag Moll.” Tab. 5, fig. 2 d), but possesses the denticulations im the mouth which in 
that species do not appear until the shell is full grown. The apex of our present shell 
has been destroyed. Under these circumstances I am not satisfied that the specimen is 
anything more than an aberrant individual of sw/cata, but have felt that it was desirable to 
have it figured. | 
CoLUMBELLA MINOR, Scacchi. Addendum, Plate, fig. 20. 
CoLUMBELLA MINOR (Scac. in Phil.). Catal., p. 10, No. 12, fig. 11. 
Buccinum minus, Phil. En, Moll. Sic., p, 190, t. xxvii, fig. 12. 
Locality. Cor. Crag, near Orford. 
A single specimen with this name has also been sent to me by Mr. Robert Bell, and 
it is, I think, correctly referred. The Crag shell has the surface much eroded, but in its 
living state it was probably quite smooth. 
Columbella abbreviata is given from the Red Crag by Mr. A. Bell in his list (‘ Proc. 
Geol. Assoc.’), p. 28, but I have not been able to confirm that reference. 
