ADDENDUM. U7 
to be intermediate between the figure of eaguus and Buccinum lavatum, Sowerby. It is, 
I think, a derived specimen. 
TROPHON ELEGANS, Charlesworth. Crag Moll., vol. i, p. 46, Tab. V, fig. 2; Addendum, 
Plate, fig. 13. 
At p. 98 of this Supplement I expressed my suspicions that this would prove to be a 
Cor. Crag shell, and to be only derivative in the Red Crag. 
I have been confirmed in this by hearmg from Mr. Canham that at a temporary 
recent opening in the Cor. Crag at Sutton the shell shown in the above figure occurred in 
numbers in association with numerous specimens of Voluta Lamberti and Cassidaria 
bicatenata. All of these, however, were in such a decayed state that only the specimen 
figured above could be extracted, and this is not full grown. Mr. Canham’s Red Crag 
specimen measures 43 inches in length. 
It would appear from this that probably both 7. elegans and Cassidaria bicatenata are 
present in the Red Crag only as derivatives from the Coralline, for while V. Lamberti 
(which by its occurrence at Yarn Hill is proved to have survived into the later part of the 
Upper Crag) is common in the only portion of the Red Crag which is not leavened with 
derivatives, viz. Walton, no trace of either Casstdaria bicatenata or our present Zrophon has 
ever occurred there. 
This shell is, I believe, quite distinct from any variety of Zrophon antiquus, and is 
specially distinguished by the apex, which is not obtuse or mammilated, and the apex 
shown in Tab. VII, fig. 9, of this ‘Supplement, which I had imagined might be that of 
Buc. Dalei now belongs, I have now no doubt, to the present shell. 
Fusus despectus, Linné, is given as a Red Crag shell by Mr. Jeffreys, and also by Mr. 
Bell, as from Sutton, Bramerton, and Thorpe. ‘This I image must be the var. of 
T. antiquus with prominent carine like the shell figured ‘Crag Moll., vol. i, Tab. WV, 
fig. 1 6, which Edward Forbes (‘Mem. Geol. Survey, vol. 1, p. 426, 1864) referred 
to Fusus despectus. 
A very imperfect specimen has been sent to me by Mr. Canham with the locality 
“Red Crag, Waldringfield,” which may probably be Fwsus Wael, Nyst, spoken of by 
Sir Charles Lyell, ‘ Quart. Journ. Geol. Soc.,’ vol. vii, pp. 301 and 316, and described 
by Beyrich, p. 271, Taf. 20, figs. 1—3. This is, no doubt, a derivative. 
Tropuon Norvecicus? Supplement, p. 21, Tab. V, fig. 14, and Addendum, Plate, 
fig. 16. 
Locality. Red Crag, Sutton. 
In Mr. Alfred Bell’s paper on the English Crags, ‘ Proc. Geol. Assoc.,’ vol. 2, p. 28, 
