GASTEROPODA. A7 
convexis lonyitudinaliter creberrime costulatis, transversim vel spiraliter striatis, suturis 
profundis ; apertura ovata; labro acuto, columella triplicata. 
Length, ths of an inch. 
Localities. Coralline Crag, Sutton, and near Orford. 
When describing C. costellifera (‘Crag Moll.,’ vol. i, p. 66) I considered the above 
represented specimen merely as a variety of that shell; but I now believe it to be distinct. 
My. Bell has lately sent to me a specimen from near Orford, which may be referred to it ; 
and with this was the name of C. Bonellit, var. Dertonensis ; but I think my shell differs 
sufficiently to be specifically removed from that species; it is more elongated, has finer 
sculpture and a deeper suture, with more convex volutions ; the upper two of which are 
free from ornament. 
CANCELLARIA SUBANGULOSA, S. Wood. Crag Mboll., vol. i, p. 66, Tab. VII, fig. 20. 
Supplement, Tab. IIT, fig. 27. 
Apmete Rerepu, 4. Bell. Ann. and Mag. Nat. Hist., September, 1870. 
Localities. Cor. Crag, Sutton, and near Orford. 
Mr. Bell placed m my hands the specimen figured in Tab. ITI, fig. 27, of this Supple- 
ment, and he has since described it under the name of Admete Reedii, as above, but except in 
point of size I cannot distinguish between it and a numerous suite of specimens in my pos- 
session of subangulosa, all small, but varying much in size, which, like this larger shell Reediz, 
possess no fold on the columella. ‘This fold is shown on the specimen figured in the 
‘Crag Mollusca,’ Tab. VII, fig. 20, but it does not appear to be a constant character. 
Specimens of subangulosa were given by me to Dr. Koenen, who recognised it as a 
German Oligocene species (‘ Unter Oligoc. Fauna’ von Helmstadt, S. 473), and Dr. O. 
Speyer has, in his ‘Conchology of the Cassel Tertiaries’ (Cassel, 1867), figured several 
forms which he groups together as this shell. In some the shoulder is almost obsolete, 
as it is in gracilenta, and the folds on the columella faint and double, and others where 
the fold is very distinct and treble. 
It would seem, therefore, that this is a very variable shell, and that the folds on the 
columella are not a reliable character in it. Mr. Bell’s large shell Reedii shows six whorls, 
while those specimens of mine, that are identical with it in all respects save size, show but 
four. ‘This strengthens my view that my swbangulosa is only the young of Reedi ; but 
why the full-grown shell should be so rare I am unable to suggest. One of Dr. Speyer’s 
figures shows six whorls. 
CANCELLARIA Brinuarpr? Mich. Supplement, Tab. IIL, fig. 25. 
CANCELLARIA Betiarpir. Descrip. des Foss. Misc. de l’Italie Septent., p. 225. 
— EVULSA, Sow. Bellardi, Descript. d. Cancell. foss. du Piemont, p. 25. 
