TO GEOLOGY. 151 
ficulneus* (Lamarck), but differs in having no fold on the 
columella and being without those on the whorls. The 
superior whorls of the Fittonii are disposed to be biangular, 
which character is lost on the last whorls, the superior part 
of which is disposed to be canaliculate. 
F. parvus. Plate 5. Fig. 157. 
Description. Shell ovately fusiform, smooth, somewhat 
elevated in the spire ; substance of the shell thick ; spire 
rather elevated and pointed at the apex; suture linear ; 
whorls six, above slightly convex; columella twisted ; 
canal short, oblique ; mouth lunate. 
Length .4, Breadth .2, of an inch. 
Observations. A single individual only of this species 
and that not entirely perfect, has come under my notice. 
It forms a natural link between the last described and that 
which follows. The spire is more elevated than the 
Fittonti, and it differs in not having granulations, as it 
dose also in the columella. 
F. minor. Plate 5. Fig. 158. 
Description. Shell fusiform, smooth, elevated in the 
spire; substance of the shell rather thin ; spire elevated 
and pointed at the apex ; suture linear ; whorls six, very 
* Murex turgidus, Brander, plate 4, fig.51. Fusus ficulneus, Sowerby, 
Min. Conch. plate 291. 
