94 SUPPLEMENT TO THE CRAG MOLLUSCA. 
Acrmon susuLatus, S. Wood. Supplement, Tab. V, fig. 16; Crag Moll., vol. 1, p. 170 
Malo, XID, Se, 
Localities. Cor. Crag, near Orford. Red Crag, Sutton, and Butley. 
The figure in Supplement, Tab. V, represents a specimen from the Coralline Crag at 
Orford. It much resembles, and is probably, the first incoming of the shell 4. subulatus, 
figured in Tab. XIX of ‘Crag Moll.,’ from the Red Crag, although the present shell is a 
little more elongate than the last-mentioned figure. I have, however, recently obtained a 
specimen from the Red Crag of Butley, which is similar to the Cor. Crag one, but larger, 
being perhaps an older shell. The apex of the Cor. Crag fossil is obtuse, not an un- 
common character with many of the Coralline Crag species; in other respects it much 
resembles Zornatella sulcata, Lam., but the pullus portion of that shell has a sinistral 
volution which I do not see in my own, and there is a difference in the size and position 
of the fold upon the columella. The striations on sudcata are also carried equally over 
the whole whorl, which is not the case in swéwata. ‘The resemblance of this shell to 
the Eocene sw/cata is closer than is that of several Crag shells to those living species 
with which they have been considered by some as identical. I believe my shell figured 
in Crag Moll., Tab. XIX, fig. 7, to be specifically distinct from ¢ornatilis. 
Acton Levipensis, S. Wood. Crag Moll., vol. i, p. 171, Tab. XIX, fig. 4. 
This shell has become exceedingly rare to my researches, and, so far as I know at 
present, is restricted to the single locality of Sutton in the Cor. Crag. Whether this be 
the same as the Belgian fossil 7. elongata, Nyst., I have not been able to ascertain, but 
judging from the figure by that author, I should scarcely think it was. It is, however, 
quite distinct from the Older Tertiary e/ongatus of J. Sowerby. 
Act#on ? Eraprimpert, 4. Bell. Supplement, Tab. V, fig. 17. 
Acrmon ? Eruertper, 4. Bell. (N.S.) Ann. and Mag. Nat. Hist., Sep. 1870. 
—  exivis? Jeffreys. Quart. Journ. Geol. Soc., vol. xxvii, p. 486, Nov., 1871. 
Locality. Red Crag, Walton Naze (4. Bell). 
The specimen figured was found by Mr. A. Bell. It was forwarded to me with the 
above name in commemoration of the able paleontologist of the ‘Geological Survey,’ and 
I have great pleasure in adopting that specific name for our shell. 
This is a strange form, and I know not in what genus it ought to be placed. Species 
in Acteon are all more or less covered with spiral striz, but this shell seems to be quite 
