158 
of the volutions ; but the canal connected with the upper 
angle of the mouth, instead of following that edge as in 
T. subulatum, rises in a straight line to the apex. As 
this canal is not mentioned by La Marck in his descrip- 
tion of T. fusiforme, and as he quotes no figure, it is 
with some doubt that we adopt his name while we 
enlarge his specific character. The position of this 
canal might form a foundation to establish a new genus 
upon, but at present that does not appear necessary. 
The columella is curved in the reverse direction, and 
more than in Seraphs, a character which will often 
serve to distinguish fragments of these shells from each 
other by: in both, the thin left lip which covers the 
columella is very apt to peel off, it is, although thin, 
rather tumid in the shell before us. 
La Marck gives us no exact locality for his T. fusi- 
forme: our’s is rare: I have received it through the 
kindness of Lady Burgoine and Miss Beminster, who 
found it near Hordwell. It apparently sometimes equals 
in size the Seraphs. Mr. de Gerville has amongst the 
numerous favours for which I have to thank him, sent 
me two or three casts from near Valognes, that are 
probably of this species, as they shew the spire; but 
the canal from the mouth cannot be traced in any of 
them. 
