172 
smaller tubercles (besides other differences), I have reserved 
it for a future period, when other species may have been 
discovered. These figures are from specimens with which 
I am favoured by Mr. Mantell, who has examined the 
Genus much. 
‘ TURRILITES obliqua. 
TAB, LXXV.—Fig. 4. 
Spec. Cuar. Upper part of the whorls contracted ; 
below the middle is placed a row of large 
oblique tubercles. 
mE ET ee ae 
Tur spire of this turns to the right, whereas the other 
Turrilites are reversed shells: the tubercles being placed 
upon the more prominent part of the whorls give them an 
angular aspect. 
The morsel I have here figured is from the micaceous 
Sandstone near Devizes: it was found in digging the Canal, 
and presented to me by Mrs. Gent. It may hereafter prove 
not to be a Turrilite: I figure it not knowing that better can 
be got, and wishing to draw the attention of Collectors to it. 
Its not being a reversed shell is peculiar, if it be a Turrilite, 
as I believe other Turrilites always are so, a circumstance 
which Mr. Parkinson’s Engraver has overlooked, and which 
I ‘forgot to mention in my former description, though my 
figures are right. 
