312 APPENDIX. 
being deposited upon the internal cast; while upon the matrix is exhibited the sculpture of the exterior 
on which also are deposited similar crystals. Besides the present species, Mr. Acton has kindly given 
mea specimen of Nassa conglobata in the same state; and although the last has not yet been found 
in the Coralline Crag, I think there is every reason to believe the cast of this species, as well as the other 
sandstone nodules previously noticed, are the littoral remains of a destroyed portion of what might have 
been a purely sandy deposit of the age of the Older Crag. 
Tropuon Norvecicum, Chemnitz, Tab. XXXI, fig. 1, a, d. 
StromBus Norveeicus. Chemn. Conch. Cab., vol. x, p. 218, t. 157, figs. 1497, 1498, 1788. 
Fusus Norwecicus. Turt. Mag. Nat. Hist., vol. vii, p. 351, 1834, 
— Norveeicus. Howse. Ann. and Mag. Nat. Hist., vol. xix, p. 162, pl. 10, figs. 1—4, 
1847. 
— _ Forb. and Hani. Hist. Brit. Moll., vol. iii, p. 428, pl. 107 and 108, 
fig. 7. 
Tritonrum Norvectcum. Midd. Malaco. Rossica., part 2, p. 147. 
— _— Lovén. Ind. Moll. Scand., p. 11, 1846. 
Spec. Char. “T. oblongd, subulatd, albd, anfractibus sex teretibus; aperturd patuld ovatd, caudd 
subadscendente, fauce eburned.”’—Chemnitz. 
“Shell smooth, volutions six, rather flat, the lower one ventricose ; aperture twice the length of the 
rest of the shell, and pure white; outer lip much dilated, and smooth on the inner margin; the edge sharp 
and slightly reflected ; pillar smooth.” 
Length of recent shell, 44 inches. 
Locality. Red Crag, Sutton and Felixstow. Recent, British and Arctic Seas. 
A few fragments, or the young state of this species, have been for some time in my cabinet, but their 
very imperfect condition rendered an assignment doubtful ; and until the discovery of the larger specimen, 
which was obtained at Felixstow by Mrs. Henry Bartlet, of Ipswich, who has obligingly entrusted it to my care 
for examination and representation, I was fearful to introduce the name into the List of British Fossils ; but 
there is now very good reason to believe the above-named species was an inhabitant of our seas during the 
period the Red Crag was deposited. Mrs. Bartlet’s specimen (fig. 1, a) consists of a considerable portion of 
the shell, with the outer lip and anterior canal destroyed: what remains corresponds so closely with the 
existing species, that there is every probability of its identity. Our shell is thin, has lost its outer coating, 
and the suture in consequence is deepened; upon the shell are still visible numerous, but somewhat obsolete 
striz. The fracture of the specimen appears to have been produced or accelerated by the inroads of a Cliona 
—a means of destruction not uncommon with the shells of the Crag. Being unable to give a detailed 
description, I have taken the diagnosis from Chemnitz; he refers to ‘Seba Thesaur,’ vol. iii, t. 52, fig. 9? 
1758, who was probably the first to notice the species. It is said to have been found in the Newer Tertiaries 
of Sweden. 
Mr. Howse states having dredged the living shell, in sixty fathoms water, off the Durham coast. 
Tropuon Turtont, Bean. Tab. XXXI, fig. 2. 
Fusus Turtonr. Bean. Mag. Nat. Hist., vol. vii, p. 493, fig. 61. 
—_ — Howse. Ann. Nat. Hist., vol. xix, p. 163, pl. 10, figs. 6—10. 
— a Reeve. Conch. Icon. Fusus, vol. iv, pl. 20, fig. 83. 
_ _— Forbes and Hanley. Hist. Brit. Moll., vol. ii, p. 431, pl. 105, figs. 3, 4, and 
pl. 106, figs. 2—4. 
