134 SUPPLEMENT TO THE CRAG MOLLUSCA. 
CaRrpIUM PINNATULUM, Conrad. Crag Moll., vol. ii, p. 154, Tab. XIII, fig. 3 (as C. 
nodosulum). 
CaRDIUM PINNATULUM, Conrad. Journ. Acad. Nat. Sc., p. 260, pl. xi, fig. 8, 1831. 
— — Gould. Iny. Mass., p. 90, fig. 57, 1841. 
Localities. As in ‘ Crag Mollusca.’ 
This in the Crag is rare to my researches. In the ‘ Crag Mollusca’ I thought it to 
be distinct from C. pinnatulum, differmg in the number of ribs. I have, however, since 
seen more of the recent shell, and find that in some specimens they correspond in this 
respect, so that I have substituted the name of pzmnatulum for the Crag shell. 
CARDIUM STRIGILLIFERUM. Crag Moll., vol. 1, p. 154, Tab. XIII, fig. 5. 
Localities. Cor. Crag passim. 
This Coralline Crag shell is given by Mr. Bell (Ann. Mag. Nat. Hist.,’ 1870) as 
identical with ©. elegantulum, Moller, and it is also so referred by Mr. Jeffreys in his 
list attached to Mr. Prestwich’s paper. I have compared my fossil with the recent shell 
and think that the two are distinct. The Crag shell is more tumid than the recent one, 
and the tubercles on it are narrow and prominent, being, so to speak, perched on the 
centre of the rib, while in the recent shell the tubercles are more properly imbrices, and 
are broad and cover the rib. 
CaRDIUM EDULE, Zinn. Crag Moll., vol. ii, p. 155, Tab. XIV, fig. 2. 
Localities. All the Upper Tertiaries of Hast Anglia. 
This shell first appears in the Cor. Crag, where it is very rare, and it is also rare at 
Walton-Naze, but it is extremely common in the more recent formations. It is present 
in the Post-Glacial beds of Kelsey Hill, March, and Hunstanton, also in the Brickearth 
of the Valley of the Nar. 
Carpium Noposum, Zurt. Supplement, Tab. X, fig. 6. 
Carpium Noposum, Turt. Brit. Biv., p. 186, t. xiii, fig. 8, 1822. 
— — Jeffreys. Brit. Conch., vol. xi, p. 283, pl. xxxv, fig. 4. 
Locality. Coralline Crag, Sutton. 
There are a number of small specimens in my cabinet which I had imagined to be 
the young of the shell figured in ‘Crag Moll.,’ Tab. XIII, fig. 4, as C. nodosum. This 
shell, however, has since been referred to C. fasciatum, Mont., by Mr. Jefireys, in which 
