APPENDIX. 313 
Spec. Char. “ Testd ovato-turritd, crassiusculd ; spird enormiter acuminato-productd, apice papillari ; 
anfractibus spiraliter striatis, superné concavis, viv angulatis ; aperturd ampld, labro incrassato subreflexo ; 
albida.’—Reeves. 
“Shell ovately turreted, somewhat thick; spire enormously produced, with a mammillated apex ; 
whorls spirally striated, concave on the upper part, scarcely angulated; aperture large, with a thickened, 
slightly reflexed outer lip.” 
Length (of the recent shell), 5 inches. 
Locality. Red Crag, Ramsholt. Recent, British Seas. 
The fragment of a shell in my cabinet corresponds with the young or spiral portion of the above- 
named recent species, and this is all that I have seen; it is thin and fragile, having lost its outer coating, 
and is quite smooth, and it is placed provisionally in this position. 
TROPHON PROPINQUUM? Alder. Tab. XXXI, fig. 3, a, d. 
Fusus propinauus. Alder. Catal. Moll. Northum. and Durh., p. 63. 
— — Forb. and Hanl. Hist. Brit. Moll., vol. ui, p. 419, pl. 103, fig. 2. 
— Sasrnt. Forbes. Mem. Geol. Surv. Grt. Brit., vol. i, p. 426. 
The British conchologists appear to consider they have well-defined characters for the separation of 
T. Islandicum and T. propinquum, the former having a mammillated apex, while in the latter the volution is 
commenced from a much smaller point; the pullus of each being sufficient to determine the species. In 
addition to which the propinguum is said to be comparatively much shorter and more tumid, or less 
elongated than the other. My Coralline Crag specimens appear to preserve a sort of intermediate character, 
and I have thought it necessary to give an enlarged representation of the spire of our shell, which is 
certainly not mammillated, and corresponds in its elongated and elegant form with 7. Islandicum, having 
eight volutions, with a length of one inch and a quarter, and its greatest diameter 7/,ths of an inch: thus 
appearing to unite the distinguishing characters of the two recent species. The specimens from the Red 
Crag are tolerably abundant, but the apex—the character by which it is said to be distinguished—is generally 
more or less injured. It has been found at Bridlington, and in the Drift in Ireland. 
TRoPHON Faprictit, Beck. Tab. XXXT, fig. 4. 
TropHon Faprictt. (Beck) ex Moller. Ind. Moll. Groenl., p. 14, 1842. 
TRITONIUM CRATICULUM. Fabricius. Faun. Groenl. Fide Méller. 
Fusus Fasrictt. Forbes. Mem. Geol. Surv., vol. i, p. 425. 
Spec. Char. Testd ovato-turritd, vel ventricoso fusiformi; costatd, costis acutis, angulatis; transversim 
striatd, striis prominulis remotis ; aperturd ovatd; labro incrassato, intus levi ; caudd brevi; columella 
pland. 
Shell ovately turreted, or ventricosely fusiform; costated, ribs sharp and angulated; transversely 
striated, striee slightly prominent and remote; aperture ovate; outer lip thickened, smooth within; canal 
short; columella plain. 
Length, 2 inch. 
Locality. Dyrift Beds, Wexford (Forbes). Recent, Greenland. 
‘This beautiful species, which was not observed in the Drift Beds until found in Ireland by Captain 
(Major) James, is intermediate in its character between Fusus scalariformis and Fusus Barvicensis. It has 
the general form and ventricose whorls of the former, with the fimbriated ribs of the latter." —Forbes. 
The figure is from the only specimen that I have seen. It is in the Museum in Jermyn Street. 
Al 
